--- /dev/null
+/**
+ * simplemde v1.11.2
+ * Copyright Next Step Webs, Inc.
+ * @link https://github.com/NextStepWebs/simplemde-markdown-editor
+ * @license MIT
+ */
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.SimpleMDE = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+'use strict'
+
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
+
+var lookup = []
+var revLookup = []
+var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
+
+function init () {
+ var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+ for (var i = 0, len = code.length; i < len; ++i) {
+ lookup[i] = code[i]
+ revLookup[code.charCodeAt(i)] = i
+ }
+
+ revLookup['-'.charCodeAt(0)] = 62
+ revLookup['_'.charCodeAt(0)] = 63
+}
+
+init()
+
+function toByteArray (b64) {
+ var i, j, l, tmp, placeHolders, arr
+ var len = b64.length
+
+ if (len % 4 > 0) {
+ throw new Error('Invalid string. Length must be a multiple of 4')
+ }
+
+ // the number of equal signs (place holders)
+ // if there are two placeholders, than the two characters before it
+ // represent one byte
+ // if there is only one, then the three characters before it represent 2 bytes
+ // this is just a cheap hack to not do indexOf twice
+ placeHolders = b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
+
+ // base64 is 4/3 + up to two characters of the original data
+ arr = new Arr(len * 3 / 4 - placeHolders)
+
+ // if there are placeholders, only get up to the last complete 4 chars
+ l = placeHolders > 0 ? len - 4 : len
+
+ var L = 0
+
+ for (i = 0, j = 0; i < l; i += 4, j += 3) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
+ arr[L++] = (tmp >> 16) & 0xFF
+ arr[L++] = (tmp >> 8) & 0xFF
+ arr[L++] = tmp & 0xFF
+ }
+
+ if (placeHolders === 2) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
+ arr[L++] = tmp & 0xFF
+ } else if (placeHolders === 1) {
+ tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
+ arr[L++] = (tmp >> 8) & 0xFF
+ arr[L++] = tmp & 0xFF
+ }
+
+ return arr
+}
+
+function tripletToBase64 (num) {
+ return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+}
+
+function encodeChunk (uint8, start, end) {
+ var tmp
+ var output = []
+ for (var i = start; i < end; i += 3) {
+ tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+ output.push(tripletToBase64(tmp))
+ }
+ return output.join('')
+}
+
+function fromByteArray (uint8) {
+ var tmp
+ var len = uint8.length
+ var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
+ var output = ''
+ var parts = []
+ var maxChunkLength = 16383 // must be multiple of 3
+
+ // go through the array every three bytes, we'll deal with trailing stuff later
+ for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
+ parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
+ }
+
+ // pad the end with zeros, but make sure to not forget the extra bytes
+ if (extraBytes === 1) {
+ tmp = uint8[len - 1]
+ output += lookup[tmp >> 2]
+ output += lookup[(tmp << 4) & 0x3F]
+ output += '=='
+ } else if (extraBytes === 2) {
+ tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
+ output += lookup[tmp >> 10]
+ output += lookup[(tmp >> 4) & 0x3F]
+ output += lookup[(tmp << 2) & 0x3F]
+ output += '='
+ }
+
+ parts.push(output)
+
+ return parts.join('')
+}
+
+},{}],2:[function(require,module,exports){
+
+},{}],3:[function(require,module,exports){
+(function (global){
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license MIT
+ */
+/* eslint-disable no-proto */
+
+'use strict'
+
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
+var isArray = require('isarray')
+
+exports.Buffer = Buffer
+exports.SlowBuffer = SlowBuffer
+exports.INSPECT_MAX_BYTES = 50
+
+/**
+ * If `Buffer.TYPED_ARRAY_SUPPORT`:
+ * === true Use Uint8Array implementation (fastest)
+ * === false Use Object implementation (most compatible, even IE6)
+ *
+ * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
+ * Opera 11.6+, iOS 4.2+.
+ *
+ * Due to various browser bugs, sometimes the Object implementation will be used even
+ * when the browser supports typed arrays.
+ *
+ * Note:
+ *
+ * - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
+ * See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
+ *
+ * - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
+ *
+ * - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
+ * incorrect length in some situations.
+
+ * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
+ * get the Object implementation, which is slower but behaves correctly.
+ */
+Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
+ ? global.TYPED_ARRAY_SUPPORT
+ : typedArraySupport()
+
+/*
+ * Export kMaxLength after typed array support is determined.
+ */
+exports.kMaxLength = kMaxLength()
+
+function typedArraySupport () {
+ try {
+ var arr = new Uint8Array(1)
+ arr.foo = function () { return 42 }
+ return arr.foo() === 42 && // typed array instances can be augmented
+ typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
+ arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
+ } catch (e) {
+ return false
+ }
+}
+
+function kMaxLength () {
+ return Buffer.TYPED_ARRAY_SUPPORT
+ ? 0x7fffffff
+ : 0x3fffffff
+}
+
+function createBuffer (that, length) {
+ if (kMaxLength() < length) {
+ throw new RangeError('Invalid typed array length')
+ }
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ // Return an augmented `Uint8Array` instance, for best performance
+ that = new Uint8Array(length)
+ that.__proto__ = Buffer.prototype
+ } else {
+ // Fallback: Return an object instance of the Buffer class
+ if (that === null) {
+ that = new Buffer(length)
+ }
+ that.length = length
+ }
+
+ return that
+}
+
+/**
+ * The Buffer constructor returns instances of `Uint8Array` that have their
+ * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
+ * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
+ * and the `Uint8Array` methods. Square bracket notation works as expected -- it
+ * returns a single octet.
+ *
+ * The `Uint8Array` prototype remains unmodified.
+ */
+
+function Buffer (arg, encodingOrOffset, length) {
+ if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
+ return new Buffer(arg, encodingOrOffset, length)
+ }
+
+ // Common case.
+ if (typeof arg === 'number') {
+ if (typeof encodingOrOffset === 'string') {
+ throw new Error(
+ 'If encoding is specified then the first argument must be a string'
+ )
+ }
+ return allocUnsafe(this, arg)
+ }
+ return from(this, arg, encodingOrOffset, length)
+}
+
+Buffer.poolSize = 8192 // not used by this implementation
+
+// TODO: Legacy, not needed anymore. Remove in next major version.
+Buffer._augment = function (arr) {
+ arr.__proto__ = Buffer.prototype
+ return arr
+}
+
+function from (that, value, encodingOrOffset, length) {
+ if (typeof value === 'number') {
+ throw new TypeError('"value" argument must not be a number')
+ }
+
+ if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
+ return fromArrayBuffer(that, value, encodingOrOffset, length)
+ }
+
+ if (typeof value === 'string') {
+ return fromString(that, value, encodingOrOffset)
+ }
+
+ return fromObject(that, value)
+}
+
+/**
+ * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
+ * if value is a number.
+ * Buffer.from(str[, encoding])
+ * Buffer.from(array)
+ * Buffer.from(buffer)
+ * Buffer.from(arrayBuffer[, byteOffset[, length]])
+ **/
+Buffer.from = function (value, encodingOrOffset, length) {
+ return from(null, value, encodingOrOffset, length)
+}
+
+if (Buffer.TYPED_ARRAY_SUPPORT) {
+ Buffer.prototype.__proto__ = Uint8Array.prototype
+ Buffer.__proto__ = Uint8Array
+ if (typeof Symbol !== 'undefined' && Symbol.species &&
+ Buffer[Symbol.species] === Buffer) {
+ // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
+ Object.defineProperty(Buffer, Symbol.species, {
+ value: null,
+ configurable: true
+ })
+ }
+}
+
+function assertSize (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('"size" argument must be a number')
+ }
+}
+
+function alloc (that, size, fill, encoding) {
+ assertSize(size)
+ if (size <= 0) {
+ return createBuffer(that, size)
+ }
+ if (fill !== undefined) {
+ // Only pay attention to encoding if it's a string. This
+ // prevents accidentally sending in a number that would
+ // be interpretted as a start offset.
+ return typeof encoding === 'string'
+ ? createBuffer(that, size).fill(fill, encoding)
+ : createBuffer(that, size).fill(fill)
+ }
+ return createBuffer(that, size)
+}
+
+/**
+ * Creates a new filled Buffer instance.
+ * alloc(size[, fill[, encoding]])
+ **/
+Buffer.alloc = function (size, fill, encoding) {
+ return alloc(null, size, fill, encoding)
+}
+
+function allocUnsafe (that, size) {
+ assertSize(size)
+ that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
+ if (!Buffer.TYPED_ARRAY_SUPPORT) {
+ for (var i = 0; i < size; i++) {
+ that[i] = 0
+ }
+ }
+ return that
+}
+
+/**
+ * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
+ * */
+Buffer.allocUnsafe = function (size) {
+ return allocUnsafe(null, size)
+}
+/**
+ * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
+ */
+Buffer.allocUnsafeSlow = function (size) {
+ return allocUnsafe(null, size)
+}
+
+function fromString (that, string, encoding) {
+ if (typeof encoding !== 'string' || encoding === '') {
+ encoding = 'utf8'
+ }
+
+ if (!Buffer.isEncoding(encoding)) {
+ throw new TypeError('"encoding" must be a valid string encoding')
+ }
+
+ var length = byteLength(string, encoding) | 0
+ that = createBuffer(that, length)
+
+ that.write(string, encoding)
+ return that
+}
+
+function fromArrayLike (that, array) {
+ var length = checked(array.length) | 0
+ that = createBuffer(that, length)
+ for (var i = 0; i < length; i += 1) {
+ that[i] = array[i] & 255
+ }
+ return that
+}
+
+function fromArrayBuffer (that, array, byteOffset, length) {
+ array.byteLength // this throws if `array` is not a valid ArrayBuffer
+
+ if (byteOffset < 0 || array.byteLength < byteOffset) {
+ throw new RangeError('\'offset\' is out of bounds')
+ }
+
+ if (array.byteLength < byteOffset + (length || 0)) {
+ throw new RangeError('\'length\' is out of bounds')
+ }
+
+ if (length === undefined) {
+ array = new Uint8Array(array, byteOffset)
+ } else {
+ array = new Uint8Array(array, byteOffset, length)
+ }
+
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ // Return an augmented `Uint8Array` instance, for best performance
+ that = array
+ that.__proto__ = Buffer.prototype
+ } else {
+ // Fallback: Return an object instance of the Buffer class
+ that = fromArrayLike(that, array)
+ }
+ return that
+}
+
+function fromObject (that, obj) {
+ if (Buffer.isBuffer(obj)) {
+ var len = checked(obj.length) | 0
+ that = createBuffer(that, len)
+
+ if (that.length === 0) {
+ return that
+ }
+
+ obj.copy(that, 0, 0, len)
+ return that
+ }
+
+ if (obj) {
+ if ((typeof ArrayBuffer !== 'undefined' &&
+ obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
+ if (typeof obj.length !== 'number' || isnan(obj.length)) {
+ return createBuffer(that, 0)
+ }
+ return fromArrayLike(that, obj)
+ }
+
+ if (obj.type === 'Buffer' && isArray(obj.data)) {
+ return fromArrayLike(that, obj.data)
+ }
+ }
+
+ throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
+}
+
+function checked (length) {
+ // Note: cannot use `length < kMaxLength` here because that fails when
+ // length is NaN (which is otherwise coerced to zero.)
+ if (length >= kMaxLength()) {
+ throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
+ 'size: 0x' + kMaxLength().toString(16) + ' bytes')
+ }
+ return length | 0
+}
+
+function SlowBuffer (length) {
+ if (+length != length) { // eslint-disable-line eqeqeq
+ length = 0
+ }
+ return Buffer.alloc(+length)
+}
+
+Buffer.isBuffer = function isBuffer (b) {
+ return !!(b != null && b._isBuffer)
+}
+
+Buffer.compare = function compare (a, b) {
+ if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
+ throw new TypeError('Arguments must be Buffers')
+ }
+
+ if (a === b) return 0
+
+ var x = a.length
+ var y = b.length
+
+ for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+ if (a[i] !== b[i]) {
+ x = a[i]
+ y = b[i]
+ break
+ }
+ }
+
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
+}
+
+Buffer.isEncoding = function isEncoding (encoding) {
+ switch (String(encoding).toLowerCase()) {
+ case 'hex':
+ case 'utf8':
+ case 'utf-8':
+ case 'ascii':
+ case 'binary':
+ case 'base64':
+ case 'raw':
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return true
+ default:
+ return false
+ }
+}
+
+Buffer.concat = function concat (list, length) {
+ if (!isArray(list)) {
+ throw new TypeError('"list" argument must be an Array of Buffers')
+ }
+
+ if (list.length === 0) {
+ return Buffer.alloc(0)
+ }
+
+ var i
+ if (length === undefined) {
+ length = 0
+ for (i = 0; i < list.length; i++) {
+ length += list[i].length
+ }
+ }
+
+ var buffer = Buffer.allocUnsafe(length)
+ var pos = 0
+ for (i = 0; i < list.length; i++) {
+ var buf = list[i]
+ if (!Buffer.isBuffer(buf)) {
+ throw new TypeError('"list" argument must be an Array of Buffers')
+ }
+ buf.copy(buffer, pos)
+ pos += buf.length
+ }
+ return buffer
+}
+
+function byteLength (string, encoding) {
+ if (Buffer.isBuffer(string)) {
+ return string.length
+ }
+ if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
+ (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
+ return string.byteLength
+ }
+ if (typeof string !== 'string') {
+ string = '' + string
+ }
+
+ var len = string.length
+ if (len === 0) return 0
+
+ // Use a for loop to avoid recursion
+ var loweredCase = false
+ for (;;) {
+ switch (encoding) {
+ case 'ascii':
+ case 'binary':
+ // Deprecated
+ case 'raw':
+ case 'raws':
+ return len
+ case 'utf8':
+ case 'utf-8':
+ case undefined:
+ return utf8ToBytes(string).length
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return len * 2
+ case 'hex':
+ return len >>> 1
+ case 'base64':
+ return base64ToBytes(string).length
+ default:
+ if (loweredCase) return utf8ToBytes(string).length // assume utf8
+ encoding = ('' + encoding).toLowerCase()
+ loweredCase = true
+ }
+ }
+}
+Buffer.byteLength = byteLength
+
+function slowToString (encoding, start, end) {
+ var loweredCase = false
+
+ // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+ // property of a typed array.
+
+ // This behaves neither like String nor Uint8Array in that we set start/end
+ // to their upper/lower bounds if the value passed is out of range.
+ // undefined is handled specially as per ECMA-262 6th Edition,
+ // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
+ if (start === undefined || start < 0) {
+ start = 0
+ }
+ // Return early if start > this.length. Done here to prevent potential uint32
+ // coercion fail below.
+ if (start > this.length) {
+ return ''
+ }
+
+ if (end === undefined || end > this.length) {
+ end = this.length
+ }
+
+ if (end <= 0) {
+ return ''
+ }
+
+ // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+ end >>>= 0
+ start >>>= 0
+
+ if (end <= start) {
+ return ''
+ }
+
+ if (!encoding) encoding = 'utf8'
+
+ while (true) {
+ switch (encoding) {
+ case 'hex':
+ return hexSlice(this, start, end)
+
+ case 'utf8':
+ case 'utf-8':
+ return utf8Slice(this, start, end)
+
+ case 'ascii':
+ return asciiSlice(this, start, end)
+
+ case 'binary':
+ return binarySlice(this, start, end)
+
+ case 'base64':
+ return base64Slice(this, start, end)
+
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return utf16leSlice(this, start, end)
+
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = (encoding + '').toLowerCase()
+ loweredCase = true
+ }
+ }
+}
+
+// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
+// Buffer instances.
+Buffer.prototype._isBuffer = true
+
+function swap (b, n, m) {
+ var i = b[n]
+ b[n] = b[m]
+ b[m] = i
+}
+
+Buffer.prototype.swap16 = function swap16 () {
+ var len = this.length
+ if (len % 2 !== 0) {
+ throw new RangeError('Buffer size must be a multiple of 16-bits')
+ }
+ for (var i = 0; i < len; i += 2) {
+ swap(this, i, i + 1)
+ }
+ return this
+}
+
+Buffer.prototype.swap32 = function swap32 () {
+ var len = this.length
+ if (len % 4 !== 0) {
+ throw new RangeError('Buffer size must be a multiple of 32-bits')
+ }
+ for (var i = 0; i < len; i += 4) {
+ swap(this, i, i + 3)
+ swap(this, i + 1, i + 2)
+ }
+ return this
+}
+
+Buffer.prototype.toString = function toString () {
+ var length = this.length | 0
+ if (length === 0) return ''
+ if (arguments.length === 0) return utf8Slice(this, 0, length)
+ return slowToString.apply(this, arguments)
+}
+
+Buffer.prototype.equals = function equals (b) {
+ if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
+ if (this === b) return true
+ return Buffer.compare(this, b) === 0
+}
+
+Buffer.prototype.inspect = function inspect () {
+ var str = ''
+ var max = exports.INSPECT_MAX_BYTES
+ if (this.length > 0) {
+ str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
+ if (this.length > max) str += ' ... '
+ }
+ return '<Buffer ' + str + '>'
+}
+
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+ if (!Buffer.isBuffer(target)) {
+ throw new TypeError('Argument must be a Buffer')
+ }
+
+ if (start === undefined) {
+ start = 0
+ }
+ if (end === undefined) {
+ end = target ? target.length : 0
+ }
+ if (thisStart === undefined) {
+ thisStart = 0
+ }
+ if (thisEnd === undefined) {
+ thisEnd = this.length
+ }
+
+ if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+ throw new RangeError('out of range index')
+ }
+
+ if (thisStart >= thisEnd && start >= end) {
+ return 0
+ }
+ if (thisStart >= thisEnd) {
+ return -1
+ }
+ if (start >= end) {
+ return 1
+ }
+
+ start >>>= 0
+ end >>>= 0
+ thisStart >>>= 0
+ thisEnd >>>= 0
+
+ if (this === target) return 0
+
+ var x = thisEnd - thisStart
+ var y = end - start
+ var len = Math.min(x, y)
+
+ var thisCopy = this.slice(thisStart, thisEnd)
+ var targetCopy = target.slice(start, end)
+
+ for (var i = 0; i < len; ++i) {
+ if (thisCopy[i] !== targetCopy[i]) {
+ x = thisCopy[i]
+ y = targetCopy[i]
+ break
+ }
+ }
+
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
+}
+
+function arrayIndexOf (arr, val, byteOffset, encoding) {
+ var indexSize = 1
+ var arrLength = arr.length
+ var valLength = val.length
+
+ if (encoding !== undefined) {
+ encoding = String(encoding).toLowerCase()
+ if (encoding === 'ucs2' || encoding === 'ucs-2' ||
+ encoding === 'utf16le' || encoding === 'utf-16le') {
+ if (arr.length < 2 || val.length < 2) {
+ return -1
+ }
+ indexSize = 2
+ arrLength /= 2
+ valLength /= 2
+ byteOffset /= 2
+ }
+ }
+
+ function read (buf, i) {
+ if (indexSize === 1) {
+ return buf[i]
+ } else {
+ return buf.readUInt16BE(i * indexSize)
+ }
+ }
+
+ var foundIndex = -1
+ for (var i = 0; byteOffset + i < arrLength; i++) {
+ if (read(arr, byteOffset + i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
+ if (foundIndex === -1) foundIndex = i
+ if (i - foundIndex + 1 === valLength) return (byteOffset + foundIndex) * indexSize
+ } else {
+ if (foundIndex !== -1) i -= i - foundIndex
+ foundIndex = -1
+ }
+ }
+ return -1
+}
+
+Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
+ if (typeof byteOffset === 'string') {
+ encoding = byteOffset
+ byteOffset = 0
+ } else if (byteOffset > 0x7fffffff) {
+ byteOffset = 0x7fffffff
+ } else if (byteOffset < -0x80000000) {
+ byteOffset = -0x80000000
+ }
+ byteOffset >>= 0
+
+ if (this.length === 0) return -1
+ if (byteOffset >= this.length) return -1
+
+ // Negative offsets start from the end of the buffer
+ if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0)
+
+ if (typeof val === 'string') {
+ val = Buffer.from(val, encoding)
+ }
+
+ if (Buffer.isBuffer(val)) {
+ // special case: looking for empty string/buffer always fails
+ if (val.length === 0) {
+ return -1
+ }
+ return arrayIndexOf(this, val, byteOffset, encoding)
+ }
+ if (typeof val === 'number') {
+ if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') {
+ return Uint8Array.prototype.indexOf.call(this, val, byteOffset)
+ }
+ return arrayIndexOf(this, [ val ], byteOffset, encoding)
+ }
+
+ throw new TypeError('val must be string, number or Buffer')
+}
+
+Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
+ return this.indexOf(val, byteOffset, encoding) !== -1
+}
+
+function hexWrite (buf, string, offset, length) {
+ offset = Number(offset) || 0
+ var remaining = buf.length - offset
+ if (!length) {
+ length = remaining
+ } else {
+ length = Number(length)
+ if (length > remaining) {
+ length = remaining
+ }
+ }
+
+ // must be an even number of digits
+ var strLen = string.length
+ if (strLen % 2 !== 0) throw new Error('Invalid hex string')
+
+ if (length > strLen / 2) {
+ length = strLen / 2
+ }
+ for (var i = 0; i < length; i++) {
+ var parsed = parseInt(string.substr(i * 2, 2), 16)
+ if (isNaN(parsed)) return i
+ buf[offset + i] = parsed
+ }
+ return i
+}
+
+function utf8Write (buf, string, offset, length) {
+ return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+function asciiWrite (buf, string, offset, length) {
+ return blitBuffer(asciiToBytes(string), buf, offset, length)
+}
+
+function binaryWrite (buf, string, offset, length) {
+ return asciiWrite(buf, string, offset, length)
+}
+
+function base64Write (buf, string, offset, length) {
+ return blitBuffer(base64ToBytes(string), buf, offset, length)
+}
+
+function ucs2Write (buf, string, offset, length) {
+ return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+Buffer.prototype.write = function write (string, offset, length, encoding) {
+ // Buffer#write(string)
+ if (offset === undefined) {
+ encoding = 'utf8'
+ length = this.length
+ offset = 0
+ // Buffer#write(string, encoding)
+ } else if (length === undefined && typeof offset === 'string') {
+ encoding = offset
+ length = this.length
+ offset = 0
+ // Buffer#write(string, offset[, length][, encoding])
+ } else if (isFinite(offset)) {
+ offset = offset | 0
+ if (isFinite(length)) {
+ length = length | 0
+ if (encoding === undefined) encoding = 'utf8'
+ } else {
+ encoding = length
+ length = undefined
+ }
+ // legacy write(string, encoding, offset, length) - remove in v0.13
+ } else {
+ throw new Error(
+ 'Buffer.write(string, encoding, offset[, length]) is no longer supported'
+ )
+ }
+
+ var remaining = this.length - offset
+ if (length === undefined || length > remaining) length = remaining
+
+ if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
+ throw new RangeError('Attempt to write outside buffer bounds')
+ }
+
+ if (!encoding) encoding = 'utf8'
+
+ var loweredCase = false
+ for (;;) {
+ switch (encoding) {
+ case 'hex':
+ return hexWrite(this, string, offset, length)
+
+ case 'utf8':
+ case 'utf-8':
+ return utf8Write(this, string, offset, length)
+
+ case 'ascii':
+ return asciiWrite(this, string, offset, length)
+
+ case 'binary':
+ return binaryWrite(this, string, offset, length)
+
+ case 'base64':
+ // Warning: maxLength not taken into account in base64Write
+ return base64Write(this, string, offset, length)
+
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return ucs2Write(this, string, offset, length)
+
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = ('' + encoding).toLowerCase()
+ loweredCase = true
+ }
+ }
+}
+
+Buffer.prototype.toJSON = function toJSON () {
+ return {
+ type: 'Buffer',
+ data: Array.prototype.slice.call(this._arr || this, 0)
+ }
+}
+
+function base64Slice (buf, start, end) {
+ if (start === 0 && end === buf.length) {
+ return base64.fromByteArray(buf)
+ } else {
+ return base64.fromByteArray(buf.slice(start, end))
+ }
+}
+
+function utf8Slice (buf, start, end) {
+ end = Math.min(buf.length, end)
+ var res = []
+
+ var i = start
+ while (i < end) {
+ var firstByte = buf[i]
+ var codePoint = null
+ var bytesPerSequence = (firstByte > 0xEF) ? 4
+ : (firstByte > 0xDF) ? 3
+ : (firstByte > 0xBF) ? 2
+ : 1
+
+ if (i + bytesPerSequence <= end) {
+ var secondByte, thirdByte, fourthByte, tempCodePoint
+
+ switch (bytesPerSequence) {
+ case 1:
+ if (firstByte < 0x80) {
+ codePoint = firstByte
+ }
+ break
+ case 2:
+ secondByte = buf[i + 1]
+ if ((secondByte & 0xC0) === 0x80) {
+ tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
+ if (tempCodePoint > 0x7F) {
+ codePoint = tempCodePoint
+ }
+ }
+ break
+ case 3:
+ secondByte = buf[i + 1]
+ thirdByte = buf[i + 2]
+ if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
+ tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
+ if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
+ codePoint = tempCodePoint
+ }
+ }
+ break
+ case 4:
+ secondByte = buf[i + 1]
+ thirdByte = buf[i + 2]
+ fourthByte = buf[i + 3]
+ if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
+ tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
+ if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
+ codePoint = tempCodePoint
+ }
+ }
+ }
+ }
+
+ if (codePoint === null) {
+ // we did not generate a valid codePoint so insert a
+ // replacement char (U+FFFD) and advance only 1 byte
+ codePoint = 0xFFFD
+ bytesPerSequence = 1
+ } else if (codePoint > 0xFFFF) {
+ // encode to utf16 (surrogate pair dance)
+ codePoint -= 0x10000
+ res.push(codePoint >>> 10 & 0x3FF | 0xD800)
+ codePoint = 0xDC00 | codePoint & 0x3FF
+ }
+
+ res.push(codePoint)
+ i += bytesPerSequence
+ }
+
+ return decodeCodePointsArray(res)
+}
+
+// Based on http://stackoverflow.com/a/22747272/680742, the browser with
+// the lowest limit is Chrome, with 0x10000 args.
+// We go 1 magnitude less, for safety
+var MAX_ARGUMENTS_LENGTH = 0x1000
+
+function decodeCodePointsArray (codePoints) {
+ var len = codePoints.length
+ if (len <= MAX_ARGUMENTS_LENGTH) {
+ return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
+ }
+
+ // Decode in chunks to avoid "call stack size exceeded".
+ var res = ''
+ var i = 0
+ while (i < len) {
+ res += String.fromCharCode.apply(
+ String,
+ codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
+ )
+ }
+ return res
+}
+
+function asciiSlice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
+
+ for (var i = start; i < end; i++) {
+ ret += String.fromCharCode(buf[i] & 0x7F)
+ }
+ return ret
+}
+
+function binarySlice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
+
+ for (var i = start; i < end; i++) {
+ ret += String.fromCharCode(buf[i])
+ }
+ return ret
+}
+
+function hexSlice (buf, start, end) {
+ var len = buf.length
+
+ if (!start || start < 0) start = 0
+ if (!end || end < 0 || end > len) end = len
+
+ var out = ''
+ for (var i = start; i < end; i++) {
+ out += toHex(buf[i])
+ }
+ return out
+}
+
+function utf16leSlice (buf, start, end) {
+ var bytes = buf.slice(start, end)
+ var res = ''
+ for (var i = 0; i < bytes.length; i += 2) {
+ res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
+ }
+ return res
+}
+
+Buffer.prototype.slice = function slice (start, end) {
+ var len = this.length
+ start = ~~start
+ end = end === undefined ? len : ~~end
+
+ if (start < 0) {
+ start += len
+ if (start < 0) start = 0
+ } else if (start > len) {
+ start = len
+ }
+
+ if (end < 0) {
+ end += len
+ if (end < 0) end = 0
+ } else if (end > len) {
+ end = len
+ }
+
+ if (end < start) end = start
+
+ var newBuf
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ newBuf = this.subarray(start, end)
+ newBuf.__proto__ = Buffer.prototype
+ } else {
+ var sliceLen = end - start
+ newBuf = new Buffer(sliceLen, undefined)
+ for (var i = 0; i < sliceLen; i++) {
+ newBuf[i] = this[i + start]
+ }
+ }
+
+ return newBuf
+}
+
+/*
+ * Need to make sure that buffer isn't trying to write out of bounds.
+ */
+function checkOffset (offset, ext, length) {
+ if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
+ if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
+}
+
+Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
+ offset = offset | 0
+ byteLength = byteLength | 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
+ }
+
+ return val
+}
+
+Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
+ offset = offset | 0
+ byteLength = byteLength | 0
+ if (!noAssert) {
+ checkOffset(offset, byteLength, this.length)
+ }
+
+ var val = this[offset + --byteLength]
+ var mul = 1
+ while (byteLength > 0 && (mul *= 0x100)) {
+ val += this[offset + --byteLength] * mul
+ }
+
+ return val
+}
+
+Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 1, this.length)
+ return this[offset]
+}
+
+Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return this[offset] | (this[offset + 1] << 8)
+}
+
+Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return (this[offset] << 8) | this[offset + 1]
+}
+
+Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return ((this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16)) +
+ (this[offset + 3] * 0x1000000)
+}
+
+Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset] * 0x1000000) +
+ ((this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ this[offset + 3])
+}
+
+Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
+ offset = offset | 0
+ byteLength = byteLength | 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
+ }
+ mul *= 0x80
+
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+ return val
+}
+
+Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
+ offset = offset | 0
+ byteLength = byteLength | 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+ var i = byteLength
+ var mul = 1
+ var val = this[offset + --i]
+ while (i > 0 && (mul *= 0x100)) {
+ val += this[offset + --i] * mul
+ }
+ mul *= 0x80
+
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+ return val
+}
+
+Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 1, this.length)
+ if (!(this[offset] & 0x80)) return (this[offset])
+ return ((0xff - this[offset] + 1) * -1)
+}
+
+Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ var val = this[offset] | (this[offset + 1] << 8)
+ return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ var val = this[offset + 1] | (this[offset] << 8)
+ return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16) |
+ (this[offset + 3] << 24)
+}
+
+Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset] << 24) |
+ (this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ (this[offset + 3])
+}
+
+Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+ return ieee754.read(this, offset, true, 23, 4)
+}
+
+Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+ return ieee754.read(this, offset, false, 23, 4)
+}
+
+Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 8, this.length)
+ return ieee754.read(this, offset, true, 52, 8)
+}
+
+Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 8, this.length)
+ return ieee754.read(this, offset, false, 52, 8)
+}
+
+function checkInt (buf, value, offset, ext, max, min) {
+ if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
+ if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
+ if (offset + ext > buf.length) throw new RangeError('Index out of range')
+}
+
+Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset | 0
+ byteLength = byteLength | 0
+ if (!noAssert) {
+ var maxBytes = Math.pow(2, 8 * byteLength) - 1
+ checkInt(this, value, offset, byteLength, maxBytes, 0)
+ }
+
+ var mul = 1
+ var i = 0
+ this[offset] = value & 0xFF
+ while (++i < byteLength && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset | 0
+ byteLength = byteLength | 0
+ if (!noAssert) {
+ var maxBytes = Math.pow(2, 8 * byteLength) - 1
+ checkInt(this, value, offset, byteLength, maxBytes, 0)
+ }
+
+ var i = byteLength - 1
+ var mul = 1
+ this[offset + i] = value & 0xFF
+ while (--i >= 0 && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
+ if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
+ this[offset] = (value & 0xff)
+ return offset + 1
+}
+
+function objectWriteUInt16 (buf, value, offset, littleEndian) {
+ if (value < 0) value = 0xffff + value + 1
+ for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) {
+ buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
+ (littleEndian ? i : 1 - i) * 8
+ }
+}
+
+Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = (value & 0xff)
+ this[offset + 1] = (value >>> 8)
+ } else {
+ objectWriteUInt16(this, value, offset, true)
+ }
+ return offset + 2
+}
+
+Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = (value >>> 8)
+ this[offset + 1] = (value & 0xff)
+ } else {
+ objectWriteUInt16(this, value, offset, false)
+ }
+ return offset + 2
+}
+
+function objectWriteUInt32 (buf, value, offset, littleEndian) {
+ if (value < 0) value = 0xffffffff + value + 1
+ for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) {
+ buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
+ }
+}
+
+Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset + 3] = (value >>> 24)
+ this[offset + 2] = (value >>> 16)
+ this[offset + 1] = (value >>> 8)
+ this[offset] = (value & 0xff)
+ } else {
+ objectWriteUInt32(this, value, offset, true)
+ }
+ return offset + 4
+}
+
+Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = (value >>> 24)
+ this[offset + 1] = (value >>> 16)
+ this[offset + 2] = (value >>> 8)
+ this[offset + 3] = (value & 0xff)
+ } else {
+ objectWriteUInt32(this, value, offset, false)
+ }
+ return offset + 4
+}
+
+Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) {
+ var limit = Math.pow(2, 8 * byteLength - 1)
+
+ checkInt(this, value, offset, byteLength, limit - 1, -limit)
+ }
+
+ var i = 0
+ var mul = 1
+ var sub = 0
+ this[offset] = value & 0xFF
+ while (++i < byteLength && (mul *= 0x100)) {
+ if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
+ sub = 1
+ }
+ this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) {
+ var limit = Math.pow(2, 8 * byteLength - 1)
+
+ checkInt(this, value, offset, byteLength, limit - 1, -limit)
+ }
+
+ var i = byteLength - 1
+ var mul = 1
+ var sub = 0
+ this[offset + i] = value & 0xFF
+ while (--i >= 0 && (mul *= 0x100)) {
+ if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
+ sub = 1
+ }
+ this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
+ if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
+ if (value < 0) value = 0xff + value + 1
+ this[offset] = (value & 0xff)
+ return offset + 1
+}
+
+Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = (value & 0xff)
+ this[offset + 1] = (value >>> 8)
+ } else {
+ objectWriteUInt16(this, value, offset, true)
+ }
+ return offset + 2
+}
+
+Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = (value >>> 8)
+ this[offset + 1] = (value & 0xff)
+ } else {
+ objectWriteUInt16(this, value, offset, false)
+ }
+ return offset + 2
+}
+
+Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = (value & 0xff)
+ this[offset + 1] = (value >>> 8)
+ this[offset + 2] = (value >>> 16)
+ this[offset + 3] = (value >>> 24)
+ } else {
+ objectWriteUInt32(this, value, offset, true)
+ }
+ return offset + 4
+}
+
+Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
+ value = +value
+ offset = offset | 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+ if (value < 0) value = 0xffffffff + value + 1
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = (value >>> 24)
+ this[offset + 1] = (value >>> 16)
+ this[offset + 2] = (value >>> 8)
+ this[offset + 3] = (value & 0xff)
+ } else {
+ objectWriteUInt32(this, value, offset, false)
+ }
+ return offset + 4
+}
+
+function checkIEEE754 (buf, value, offset, ext, max, min) {
+ if (offset + ext > buf.length) throw new RangeError('Index out of range')
+ if (offset < 0) throw new RangeError('Index out of range')
+}
+
+function writeFloat (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
+ }
+ ieee754.write(buf, value, offset, littleEndian, 23, 4)
+ return offset + 4
+}
+
+Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, false, noAssert)
+}
+
+function writeDouble (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
+ }
+ ieee754.write(buf, value, offset, littleEndian, 52, 8)
+ return offset + 8
+}
+
+Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, false, noAssert)
+}
+
+// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+Buffer.prototype.copy = function copy (target, targetStart, start, end) {
+ if (!start) start = 0
+ if (!end && end !== 0) end = this.length
+ if (targetStart >= target.length) targetStart = target.length
+ if (!targetStart) targetStart = 0
+ if (end > 0 && end < start) end = start
+
+ // Copy 0 bytes; we're done
+ if (end === start) return 0
+ if (target.length === 0 || this.length === 0) return 0
+
+ // Fatal error conditions
+ if (targetStart < 0) {
+ throw new RangeError('targetStart out of bounds')
+ }
+ if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
+ if (end < 0) throw new RangeError('sourceEnd out of bounds')
+
+ // Are we oob?
+ if (end > this.length) end = this.length
+ if (target.length - targetStart < end - start) {
+ end = target.length - targetStart + start
+ }
+
+ var len = end - start
+ var i
+
+ if (this === target && start < targetStart && targetStart < end) {
+ // descending copy from end
+ for (i = len - 1; i >= 0; i--) {
+ target[i + targetStart] = this[i + start]
+ }
+ } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
+ // ascending copy from start
+ for (i = 0; i < len; i++) {
+ target[i + targetStart] = this[i + start]
+ }
+ } else {
+ Uint8Array.prototype.set.call(
+ target,
+ this.subarray(start, start + len),
+ targetStart
+ )
+ }
+
+ return len
+}
+
+// Usage:
+// buffer.fill(number[, offset[, end]])
+// buffer.fill(buffer[, offset[, end]])
+// buffer.fill(string[, offset[, end]][, encoding])
+Buffer.prototype.fill = function fill (val, start, end, encoding) {
+ // Handle string cases:
+ if (typeof val === 'string') {
+ if (typeof start === 'string') {
+ encoding = start
+ start = 0
+ end = this.length
+ } else if (typeof end === 'string') {
+ encoding = end
+ end = this.length
+ }
+ if (val.length === 1) {
+ var code = val.charCodeAt(0)
+ if (code < 256) {
+ val = code
+ }
+ }
+ if (encoding !== undefined && typeof encoding !== 'string') {
+ throw new TypeError('encoding must be a string')
+ }
+ if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
+ throw new TypeError('Unknown encoding: ' + encoding)
+ }
+ } else if (typeof val === 'number') {
+ val = val & 255
+ }
+
+ // Invalid ranges are not set to a default, so can range check early.
+ if (start < 0 || this.length < start || this.length < end) {
+ throw new RangeError('Out of range index')
+ }
+
+ if (end <= start) {
+ return this
+ }
+
+ start = start >>> 0
+ end = end === undefined ? this.length : end >>> 0
+
+ if (!val) val = 0
+
+ var i
+ if (typeof val === 'number') {
+ for (i = start; i < end; i++) {
+ this[i] = val
+ }
+ } else {
+ var bytes = Buffer.isBuffer(val)
+ ? val
+ : utf8ToBytes(new Buffer(val, encoding).toString())
+ var len = bytes.length
+ for (i = 0; i < end - start; i++) {
+ this[i + start] = bytes[i % len]
+ }
+ }
+
+ return this
+}
+
+// HELPER FUNCTIONS
+// ================
+
+var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g
+
+function base64clean (str) {
+ // Node strips out invalid characters like \n and \t from the string, base64-js does not
+ str = stringtrim(str).replace(INVALID_BASE64_RE, '')
+ // Node converts strings with length < 2 to ''
+ if (str.length < 2) return ''
+ // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
+ while (str.length % 4 !== 0) {
+ str = str + '='
+ }
+ return str
+}
+
+function stringtrim (str) {
+ if (str.trim) return str.trim()
+ return str.replace(/^\s+|\s+$/g, '')
+}
+
+function toHex (n) {
+ if (n < 16) return '0' + n.toString(16)
+ return n.toString(16)
+}
+
+function utf8ToBytes (string, units) {
+ units = units || Infinity
+ var codePoint
+ var length = string.length
+ var leadSurrogate = null
+ var bytes = []
+
+ for (var i = 0; i < length; i++) {
+ codePoint = string.charCodeAt(i)
+
+ // is surrogate component
+ if (codePoint > 0xD7FF && codePoint < 0xE000) {
+ // last char was a lead
+ if (!leadSurrogate) {
+ // no lead yet
+ if (codePoint > 0xDBFF) {
+ // unexpected trail
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ continue
+ } else if (i + 1 === length) {
+ // unpaired lead
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ continue
+ }
+
+ // valid lead
+ leadSurrogate = codePoint
+
+ continue
+ }
+
+ // 2 leads in a row
+ if (codePoint < 0xDC00) {
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ leadSurrogate = codePoint
+ continue
+ }
+
+ // valid surrogate pair
+ codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
+ } else if (leadSurrogate) {
+ // valid bmp char, but last char was a lead
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ }
+
+ leadSurrogate = null
+
+ // encode utf8
+ if (codePoint < 0x80) {
+ if ((units -= 1) < 0) break
+ bytes.push(codePoint)
+ } else if (codePoint < 0x800) {
+ if ((units -= 2) < 0) break
+ bytes.push(
+ codePoint >> 0x6 | 0xC0,
+ codePoint & 0x3F | 0x80
+ )
+ } else if (codePoint < 0x10000) {
+ if ((units -= 3) < 0) break
+ bytes.push(
+ codePoint >> 0xC | 0xE0,
+ codePoint >> 0x6 & 0x3F | 0x80,
+ codePoint & 0x3F | 0x80
+ )
+ } else if (codePoint < 0x110000) {
+ if ((units -= 4) < 0) break
+ bytes.push(
+ codePoint >> 0x12 | 0xF0,
+ codePoint >> 0xC & 0x3F | 0x80,
+ codePoint >> 0x6 & 0x3F | 0x80,
+ codePoint & 0x3F | 0x80
+ )
+ } else {
+ throw new Error('Invalid code point')
+ }
+ }
+
+ return bytes
+}
+
+function asciiToBytes (str) {
+ var byteArray = []
+ for (var i = 0; i < str.length; i++) {
+ // Node's code seems to be doing this and not & 0x7F..
+ byteArray.push(str.charCodeAt(i) & 0xFF)
+ }
+ return byteArray
+}
+
+function utf16leToBytes (str, units) {
+ var c, hi, lo
+ var byteArray = []
+ for (var i = 0; i < str.length; i++) {
+ if ((units -= 2) < 0) break
+
+ c = str.charCodeAt(i)
+ hi = c >> 8
+ lo = c % 256
+ byteArray.push(lo)
+ byteArray.push(hi)
+ }
+
+ return byteArray
+}
+
+function base64ToBytes (str) {
+ return base64.toByteArray(base64clean(str))
+}
+
+function blitBuffer (src, dst, offset, length) {
+ for (var i = 0; i < length; i++) {
+ if ((i + offset >= dst.length) || (i >= src.length)) break
+ dst[i + offset] = src[i]
+ }
+ return i
+}
+
+function isnan (val) {
+ return val !== val // eslint-disable-line no-self-compare
+}
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"base64-js":1,"ieee754":15,"isarray":16}],4:[function(require,module,exports){
+// Use strict mode (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode)
+"use strict";
+
+
+// Requires
+var Typo = require("typo-js");
+
+
+// Create function
+function CodeMirrorSpellChecker(options) {
+ // Initialize
+ options = options || {};
+
+
+ // Verify
+ if(typeof options.codeMirrorInstance !== "function" || typeof options.codeMirrorInstance.defineMode !== "function") {
+ console.log("CodeMirror Spell Checker: You must provide an instance of CodeMirror via the option `codeMirrorInstance`");
+ return;
+ }
+
+
+ // Because some browsers don't support this functionality yet
+ if(!String.prototype.includes) {
+ String.prototype.includes = function() {
+ "use strict";
+ return String.prototype.indexOf.apply(this, arguments) !== -1;
+ };
+ }
+
+
+ // Define the new mode
+ options.codeMirrorInstance.defineMode("spell-checker", function(config) {
+ // Load AFF/DIC data
+ if(!CodeMirrorSpellChecker.aff_loading) {
+ CodeMirrorSpellChecker.aff_loading = true;
+ var xhr_aff = new XMLHttpRequest();
+ xhr_aff.open("GET", "https://cdn.jsdelivr.net/codemirror.spell-checker/latest/en_US.aff", true);
+ xhr_aff.onload = function() {
+ if(xhr_aff.readyState === 4 && xhr_aff.status === 200) {
+ CodeMirrorSpellChecker.aff_data = xhr_aff.responseText;
+ CodeMirrorSpellChecker.num_loaded++;
+
+ if(CodeMirrorSpellChecker.num_loaded == 2) {
+ CodeMirrorSpellChecker.typo = new Typo("en_US", CodeMirrorSpellChecker.aff_data, CodeMirrorSpellChecker.dic_data, {
+ platform: "any"
+ });
+ }
+ }
+ };
+ xhr_aff.send(null);
+ }
+
+ if(!CodeMirrorSpellChecker.dic_loading) {
+ CodeMirrorSpellChecker.dic_loading = true;
+ var xhr_dic = new XMLHttpRequest();
+ xhr_dic.open("GET", "https://cdn.jsdelivr.net/codemirror.spell-checker/latest/en_US.dic", true);
+ xhr_dic.onload = function() {
+ if(xhr_dic.readyState === 4 && xhr_dic.status === 200) {
+ CodeMirrorSpellChecker.dic_data = xhr_dic.responseText;
+ CodeMirrorSpellChecker.num_loaded++;
+
+ if(CodeMirrorSpellChecker.num_loaded == 2) {
+ CodeMirrorSpellChecker.typo = new Typo("en_US", CodeMirrorSpellChecker.aff_data, CodeMirrorSpellChecker.dic_data, {
+ platform: "any"
+ });
+ }
+ }
+ };
+ xhr_dic.send(null);
+ }
+
+
+ // Define what separates a word
+ var rx_word = "!\"#$%&()*+,-./:;<=>?@[\\]^_`{|}~ ";
+
+
+ // Create the overlay and such
+ var overlay = {
+ token: function(stream) {
+ var ch = stream.peek();
+ var word = "";
+
+ if(rx_word.includes(ch)) {
+ stream.next();
+ return null;
+ }
+
+ while((ch = stream.peek()) != null && !rx_word.includes(ch)) {
+ word += ch;
+ stream.next();
+ }
+
+ if(CodeMirrorSpellChecker.typo && !CodeMirrorSpellChecker.typo.check(word))
+ return "spell-error"; // CSS class: cm-spell-error
+
+ return null;
+ }
+ };
+
+ var mode = options.codeMirrorInstance.getMode(
+ config, config.backdrop || "text/plain"
+ );
+
+ return options.codeMirrorInstance.overlayMode(mode, overlay, true);
+ });
+}
+
+
+// Initialize data globally to reduce memory consumption
+CodeMirrorSpellChecker.num_loaded = 0;
+CodeMirrorSpellChecker.aff_loading = false;
+CodeMirrorSpellChecker.dic_loading = false;
+CodeMirrorSpellChecker.aff_data = "";
+CodeMirrorSpellChecker.dic_data = "";
+CodeMirrorSpellChecker.typo;
+
+
+// Export
+module.exports = CodeMirrorSpellChecker;
+},{"typo-js":18}],5:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ CodeMirror.defineOption("fullScreen", false, function(cm, val, old) {
+ if (old == CodeMirror.Init) old = false;
+ if (!old == !val) return;
+ if (val) setFullscreen(cm);
+ else setNormal(cm);
+ });
+
+ function setFullscreen(cm) {
+ var wrap = cm.getWrapperElement();
+ cm.state.fullScreenRestore = {scrollTop: window.pageYOffset, scrollLeft: window.pageXOffset,
+ width: wrap.style.width, height: wrap.style.height};
+ wrap.style.width = "";
+ wrap.style.height = "auto";
+ wrap.className += " CodeMirror-fullscreen";
+ document.documentElement.style.overflow = "hidden";
+ cm.refresh();
+ }
+
+ function setNormal(cm) {
+ var wrap = cm.getWrapperElement();
+ wrap.className = wrap.className.replace(/\s*CodeMirror-fullscreen\b/, "");
+ document.documentElement.style.overflow = "";
+ var info = cm.state.fullScreenRestore;
+ wrap.style.width = info.width; wrap.style.height = info.height;
+ window.scrollTo(info.scrollLeft, info.scrollTop);
+ cm.refresh();
+ }
+});
+
+},{"../../lib/codemirror":10}],6:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ CodeMirror.defineOption("placeholder", "", function(cm, val, old) {
+ var prev = old && old != CodeMirror.Init;
+ if (val && !prev) {
+ cm.on("blur", onBlur);
+ cm.on("change", onChange);
+ cm.on("swapDoc", onChange);
+ onChange(cm);
+ } else if (!val && prev) {
+ cm.off("blur", onBlur);
+ cm.off("change", onChange);
+ cm.off("swapDoc", onChange);
+ clearPlaceholder(cm);
+ var wrapper = cm.getWrapperElement();
+ wrapper.className = wrapper.className.replace(" CodeMirror-empty", "");
+ }
+
+ if (val && !cm.hasFocus()) onBlur(cm);
+ });
+
+ function clearPlaceholder(cm) {
+ if (cm.state.placeholder) {
+ cm.state.placeholder.parentNode.removeChild(cm.state.placeholder);
+ cm.state.placeholder = null;
+ }
+ }
+ function setPlaceholder(cm) {
+ clearPlaceholder(cm);
+ var elt = cm.state.placeholder = document.createElement("pre");
+ elt.style.cssText = "height: 0; overflow: visible";
+ elt.className = "CodeMirror-placeholder";
+ var placeHolder = cm.getOption("placeholder")
+ if (typeof placeHolder == "string") placeHolder = document.createTextNode(placeHolder)
+ elt.appendChild(placeHolder)
+ cm.display.lineSpace.insertBefore(elt, cm.display.lineSpace.firstChild);
+ }
+
+ function onBlur(cm) {
+ if (isEmpty(cm)) setPlaceholder(cm);
+ }
+ function onChange(cm) {
+ var wrapper = cm.getWrapperElement(), empty = isEmpty(cm);
+ wrapper.className = wrapper.className.replace(" CodeMirror-empty", "") + (empty ? " CodeMirror-empty" : "");
+
+ if (empty) setPlaceholder(cm);
+ else clearPlaceholder(cm);
+ }
+
+ function isEmpty(cm) {
+ return (cm.lineCount() === 1) && (cm.getLine(0) === "");
+ }
+});
+
+},{"../../lib/codemirror":10}],7:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ var listRE = /^(\s*)(>[> ]*|[*+-]\s|(\d+)([.)]))(\s*)/,
+ emptyListRE = /^(\s*)(>[> ]*|[*+-]|(\d+)[.)])(\s*)$/,
+ unorderedListRE = /[*+-]\s/;
+
+ CodeMirror.commands.newlineAndIndentContinueMarkdownList = function(cm) {
+ if (cm.getOption("disableInput")) return CodeMirror.Pass;
+ var ranges = cm.listSelections(), replacements = [];
+ for (var i = 0; i < ranges.length; i++) {
+ var pos = ranges[i].head;
+ var eolState = cm.getStateAfter(pos.line);
+ var inList = eolState.list !== false;
+ var inQuote = eolState.quote !== 0;
+
+ var line = cm.getLine(pos.line), match = listRE.exec(line);
+ if (!ranges[i].empty() || (!inList && !inQuote) || !match) {
+ cm.execCommand("newlineAndIndent");
+ return;
+ }
+ if (emptyListRE.test(line)) {
+ cm.replaceRange("", {
+ line: pos.line, ch: 0
+ }, {
+ line: pos.line, ch: pos.ch + 1
+ });
+ replacements[i] = "\n";
+ } else {
+ var indent = match[1], after = match[5];
+ var bullet = unorderedListRE.test(match[2]) || match[2].indexOf(">") >= 0
+ ? match[2]
+ : (parseInt(match[3], 10) + 1) + match[4];
+
+ replacements[i] = "\n" + indent + bullet + after;
+ }
+ }
+
+ cm.replaceSelections(replacements);
+ };
+});
+
+},{"../../lib/codemirror":10}],8:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Utility function that allows modes to be combined. The mode given
+// as the base argument takes care of most of the normal mode
+// functionality, but a second (typically simple) mode is used, which
+// can override the style of text. Both modes get to parse all of the
+// text, but when both assign a non-null style to a piece of code, the
+// overlay wins, unless the combine argument was true and not overridden,
+// or state.overlay.combineTokens was true, in which case the styles are
+// combined.
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.overlayMode = function(base, overlay, combine) {
+ return {
+ startState: function() {
+ return {
+ base: CodeMirror.startState(base),
+ overlay: CodeMirror.startState(overlay),
+ basePos: 0, baseCur: null,
+ overlayPos: 0, overlayCur: null,
+ streamSeen: null
+ };
+ },
+ copyState: function(state) {
+ return {
+ base: CodeMirror.copyState(base, state.base),
+ overlay: CodeMirror.copyState(overlay, state.overlay),
+ basePos: state.basePos, baseCur: null,
+ overlayPos: state.overlayPos, overlayCur: null
+ };
+ },
+
+ token: function(stream, state) {
+ if (stream != state.streamSeen ||
+ Math.min(state.basePos, state.overlayPos) < stream.start) {
+ state.streamSeen = stream;
+ state.basePos = state.overlayPos = stream.start;
+ }
+
+ if (stream.start == state.basePos) {
+ state.baseCur = base.token(stream, state.base);
+ state.basePos = stream.pos;
+ }
+ if (stream.start == state.overlayPos) {
+ stream.pos = stream.start;
+ state.overlayCur = overlay.token(stream, state.overlay);
+ state.overlayPos = stream.pos;
+ }
+ stream.pos = Math.min(state.basePos, state.overlayPos);
+
+ // state.overlay.combineTokens always takes precedence over combine,
+ // unless set to null
+ if (state.overlayCur == null) return state.baseCur;
+ else if (state.baseCur != null &&
+ state.overlay.combineTokens ||
+ combine && state.overlay.combineTokens == null)
+ return state.baseCur + " " + state.overlayCur;
+ else return state.overlayCur;
+ },
+
+ indent: base.indent && function(state, textAfter) {
+ return base.indent(state.base, textAfter);
+ },
+ electricChars: base.electricChars,
+
+ innerMode: function(state) { return {state: state.base, mode: base}; },
+
+ blankLine: function(state) {
+ if (base.blankLine) base.blankLine(state.base);
+ if (overlay.blankLine) overlay.blankLine(state.overlay);
+ }
+ };
+};
+
+});
+
+},{"../../lib/codemirror":10}],9:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Because sometimes you need to mark the selected *text*.
+//
+// Adds an option 'styleSelectedText' which, when enabled, gives
+// selected text the CSS class given as option value, or
+// "CodeMirror-selectedtext" when the value is not a string.
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ CodeMirror.defineOption("styleSelectedText", false, function(cm, val, old) {
+ var prev = old && old != CodeMirror.Init;
+ if (val && !prev) {
+ cm.state.markedSelection = [];
+ cm.state.markedSelectionStyle = typeof val == "string" ? val : "CodeMirror-selectedtext";
+ reset(cm);
+ cm.on("cursorActivity", onCursorActivity);
+ cm.on("change", onChange);
+ } else if (!val && prev) {
+ cm.off("cursorActivity", onCursorActivity);
+ cm.off("change", onChange);
+ clear(cm);
+ cm.state.markedSelection = cm.state.markedSelectionStyle = null;
+ }
+ });
+
+ function onCursorActivity(cm) {
+ cm.operation(function() { update(cm); });
+ }
+
+ function onChange(cm) {
+ if (cm.state.markedSelection.length)
+ cm.operation(function() { clear(cm); });
+ }
+
+ var CHUNK_SIZE = 8;
+ var Pos = CodeMirror.Pos;
+ var cmp = CodeMirror.cmpPos;
+
+ function coverRange(cm, from, to, addAt) {
+ if (cmp(from, to) == 0) return;
+ var array = cm.state.markedSelection;
+ var cls = cm.state.markedSelectionStyle;
+ for (var line = from.line;;) {
+ var start = line == from.line ? from : Pos(line, 0);
+ var endLine = line + CHUNK_SIZE, atEnd = endLine >= to.line;
+ var end = atEnd ? to : Pos(endLine, 0);
+ var mark = cm.markText(start, end, {className: cls});
+ if (addAt == null) array.push(mark);
+ else array.splice(addAt++, 0, mark);
+ if (atEnd) break;
+ line = endLine;
+ }
+ }
+
+ function clear(cm) {
+ var array = cm.state.markedSelection;
+ for (var i = 0; i < array.length; ++i) array[i].clear();
+ array.length = 0;
+ }
+
+ function reset(cm) {
+ clear(cm);
+ var ranges = cm.listSelections();
+ for (var i = 0; i < ranges.length; i++)
+ coverRange(cm, ranges[i].from(), ranges[i].to());
+ }
+
+ function update(cm) {
+ if (!cm.somethingSelected()) return clear(cm);
+ if (cm.listSelections().length > 1) return reset(cm);
+
+ var from = cm.getCursor("start"), to = cm.getCursor("end");
+
+ var array = cm.state.markedSelection;
+ if (!array.length) return coverRange(cm, from, to);
+
+ var coverStart = array[0].find(), coverEnd = array[array.length - 1].find();
+ if (!coverStart || !coverEnd || to.line - from.line < CHUNK_SIZE ||
+ cmp(from, coverEnd.to) >= 0 || cmp(to, coverStart.from) <= 0)
+ return reset(cm);
+
+ while (cmp(from, coverStart.from) > 0) {
+ array.shift().clear();
+ coverStart = array[0].find();
+ }
+ if (cmp(from, coverStart.from) < 0) {
+ if (coverStart.to.line - from.line < CHUNK_SIZE) {
+ array.shift().clear();
+ coverRange(cm, from, coverStart.to, 0);
+ } else {
+ coverRange(cm, from, coverStart.from, 0);
+ }
+ }
+
+ while (cmp(to, coverEnd.to) < 0) {
+ array.pop().clear();
+ coverEnd = array[array.length - 1].find();
+ }
+ if (cmp(to, coverEnd.to) > 0) {
+ if (to.line - coverEnd.from.line < CHUNK_SIZE) {
+ array.pop().clear();
+ coverRange(cm, coverEnd.from, to);
+ } else {
+ coverRange(cm, coverEnd.to, to);
+ }
+ }
+ }
+});
+
+},{"../../lib/codemirror":10}],10:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// This is CodeMirror (http://codemirror.net), a code editor
+// implemented in JavaScript on top of the browser's DOM.
+//
+// You can find some technical background for some of the code below
+// at http://marijnhaverbeke.nl/blog/#cm-internals .
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ module.exports = mod();
+ else if (typeof define == "function" && define.amd) // AMD
+ return define([], mod);
+ else // Plain browser env
+ (this || window).CodeMirror = mod();
+})(function() {
+ "use strict";
+
+ // BROWSER SNIFFING
+
+ // Kludges for bugs and behavior differences that can't be feature
+ // detected are enabled based on userAgent etc sniffing.
+ var userAgent = navigator.userAgent;
+ var platform = navigator.platform;
+
+ var gecko = /gecko\/\d/i.test(userAgent);
+ var ie_upto10 = /MSIE \d/.test(userAgent);
+ var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
+ var ie = ie_upto10 || ie_11up;
+ var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]);
+ var webkit = /WebKit\//.test(userAgent);
+ var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
+ var chrome = /Chrome\//.test(userAgent);
+ var presto = /Opera\//.test(userAgent);
+ var safari = /Apple Computer/.test(navigator.vendor);
+ var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
+ var phantom = /PhantomJS/.test(userAgent);
+
+ var ios = /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent);
+ // This is woefully incomplete. Suggestions for alternative methods welcome.
+ var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
+ var mac = ios || /Mac/.test(platform);
+ var chromeOS = /\bCrOS\b/.test(userAgent);
+ var windows = /win/i.test(platform);
+
+ var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
+ if (presto_version) presto_version = Number(presto_version[1]);
+ if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
+ // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
+ var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
+ var captureRightClick = gecko || (ie && ie_version >= 9);
+
+ // Optimize some code when these features are not used.
+ var sawReadOnlySpans = false, sawCollapsedSpans = false;
+
+ // EDITOR CONSTRUCTOR
+
+ // A CodeMirror instance represents an editor. This is the object
+ // that user code is usually dealing with.
+
+ function CodeMirror(place, options) {
+ if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);
+
+ this.options = options = options ? copyObj(options) : {};
+ // Determine effective options based on given values and defaults.
+ copyObj(defaults, options, false);
+ setGuttersForLineNumbers(options);
+
+ var doc = options.value;
+ if (typeof doc == "string") doc = new Doc(doc, options.mode, null, options.lineSeparator);
+ this.doc = doc;
+
+ var input = new CodeMirror.inputStyles[options.inputStyle](this);
+ var display = this.display = new Display(place, doc, input);
+ display.wrapper.CodeMirror = this;
+ updateGutters(this);
+ themeChanged(this);
+ if (options.lineWrapping)
+ this.display.wrapper.className += " CodeMirror-wrap";
+ if (options.autofocus && !mobile) display.input.focus();
+ initScrollbars(this);
+
+ this.state = {
+ keyMaps: [], // stores maps added by addKeyMap
+ overlays: [], // highlighting overlays, as added by addOverlay
+ modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
+ overwrite: false,
+ delayingBlurEvent: false,
+ focused: false,
+ suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
+ pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
+ selectingText: false,
+ draggingText: false,
+ highlight: new Delayed(), // stores highlight worker timeout
+ keySeq: null, // Unfinished key sequence
+ specialChars: null
+ };
+
+ var cm = this;
+
+ // Override magic textarea content restore that IE sometimes does
+ // on our hidden textarea on reload
+ if (ie && ie_version < 11) setTimeout(function() { cm.display.input.reset(true); }, 20);
+
+ registerEventHandlers(this);
+ ensureGlobalHandlers();
+
+ startOperation(this);
+ this.curOp.forceUpdate = true;
+ attachDoc(this, doc);
+
+ if ((options.autofocus && !mobile) || cm.hasFocus())
+ setTimeout(bind(onFocus, this), 20);
+ else
+ onBlur(this);
+
+ for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))
+ optionHandlers[opt](this, options[opt], Init);
+ maybeUpdateLineNumberWidth(this);
+ if (options.finishInit) options.finishInit(this);
+ for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);
+ endOperation(this);
+ // Suppress optimizelegibility in Webkit, since it breaks text
+ // measuring on line wrapping boundaries.
+ if (webkit && options.lineWrapping &&
+ getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
+ display.lineDiv.style.textRendering = "auto";
+ }
+
+ // DISPLAY CONSTRUCTOR
+
+ // The display handles the DOM integration, both for input reading
+ // and content drawing. It holds references to DOM nodes and
+ // display-related state.
+
+ function Display(place, doc, input) {
+ var d = this;
+ this.input = input;
+
+ // Covers bottom-right square when both scrollbars are present.
+ d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
+ d.scrollbarFiller.setAttribute("cm-not-content", "true");
+ // Covers bottom of gutter when coverGutterNextToScrollbar is on
+ // and h scrollbar is present.
+ d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
+ d.gutterFiller.setAttribute("cm-not-content", "true");
+ // Will contain the actual code, positioned to cover the viewport.
+ d.lineDiv = elt("div", null, "CodeMirror-code");
+ // Elements are added to these to represent selection and cursors.
+ d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
+ d.cursorDiv = elt("div", null, "CodeMirror-cursors");
+ // A visibility: hidden element used to find the size of things.
+ d.measure = elt("div", null, "CodeMirror-measure");
+ // When lines outside of the viewport are measured, they are drawn in this.
+ d.lineMeasure = elt("div", null, "CodeMirror-measure");
+ // Wraps everything that needs to exist inside the vertically-padded coordinate system
+ d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
+ null, "position: relative; outline: none");
+ // Moved around its parent to cover visible view.
+ d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative");
+ // Set to the height of the document, allowing scrolling.
+ d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
+ d.sizerWidth = null;
+ // Behavior of elts with overflow: auto and padding is
+ // inconsistent across browsers. This is used to ensure the
+ // scrollable area is big enough.
+ d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
+ // Will contain the gutters, if any.
+ d.gutters = elt("div", null, "CodeMirror-gutters");
+ d.lineGutter = null;
+ // Actual scrollable element.
+ d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
+ d.scroller.setAttribute("tabIndex", "-1");
+ // The element in which the editor lives.
+ d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
+
+ // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
+ if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
+ if (!webkit && !(gecko && mobile)) d.scroller.draggable = true;
+
+ if (place) {
+ if (place.appendChild) place.appendChild(d.wrapper);
+ else place(d.wrapper);
+ }
+
+ // Current rendered range (may be bigger than the view window).
+ d.viewFrom = d.viewTo = doc.first;
+ d.reportedViewFrom = d.reportedViewTo = doc.first;
+ // Information about the rendered lines.
+ d.view = [];
+ d.renderedView = null;
+ // Holds info about a single rendered line when it was rendered
+ // for measurement, while not in view.
+ d.externalMeasured = null;
+ // Empty space (in pixels) above the view
+ d.viewOffset = 0;
+ d.lastWrapHeight = d.lastWrapWidth = 0;
+ d.updateLineNumbers = null;
+
+ d.nativeBarWidth = d.barHeight = d.barWidth = 0;
+ d.scrollbarsClipped = false;
+
+ // Used to only resize the line number gutter when necessary (when
+ // the amount of lines crosses a boundary that makes its width change)
+ d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
+ // Set to true when a non-horizontal-scrolling line widget is
+ // added. As an optimization, line widget aligning is skipped when
+ // this is false.
+ d.alignWidgets = false;
+
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+
+ // Tracks the maximum line length so that the horizontal scrollbar
+ // can be kept static when scrolling.
+ d.maxLine = null;
+ d.maxLineLength = 0;
+ d.maxLineChanged = false;
+
+ // Used for measuring wheel scrolling granularity
+ d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
+
+ // True when shift is held down.
+ d.shift = false;
+
+ // Used to track whether anything happened since the context menu
+ // was opened.
+ d.selForContextMenu = null;
+
+ d.activeTouch = null;
+
+ input.init(d);
+ }
+
+ // STATE UPDATES
+
+ // Used to get the editor into a consistent state again when options change.
+
+ function loadMode(cm) {
+ cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);
+ resetModeState(cm);
+ }
+
+ function resetModeState(cm) {
+ cm.doc.iter(function(line) {
+ if (line.stateAfter) line.stateAfter = null;
+ if (line.styles) line.styles = null;
+ });
+ cm.doc.frontier = cm.doc.first;
+ startWorker(cm, 100);
+ cm.state.modeGen++;
+ if (cm.curOp) regChange(cm);
+ }
+
+ function wrappingChanged(cm) {
+ if (cm.options.lineWrapping) {
+ addClass(cm.display.wrapper, "CodeMirror-wrap");
+ cm.display.sizer.style.minWidth = "";
+ cm.display.sizerWidth = null;
+ } else {
+ rmClass(cm.display.wrapper, "CodeMirror-wrap");
+ findMaxLine(cm);
+ }
+ estimateLineHeights(cm);
+ regChange(cm);
+ clearCaches(cm);
+ setTimeout(function(){updateScrollbars(cm);}, 100);
+ }
+
+ // Returns a function that estimates the height of a line, to use as
+ // first approximation until the line becomes visible (and is thus
+ // properly measurable).
+ function estimateHeight(cm) {
+ var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
+ var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
+ return function(line) {
+ if (lineIsHidden(cm.doc, line)) return 0;
+
+ var widgetsHeight = 0;
+ if (line.widgets) for (var i = 0; i < line.widgets.length; i++) {
+ if (line.widgets[i].height) widgetsHeight += line.widgets[i].height;
+ }
+
+ if (wrapping)
+ return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th;
+ else
+ return widgetsHeight + th;
+ };
+ }
+
+ function estimateLineHeights(cm) {
+ var doc = cm.doc, est = estimateHeight(cm);
+ doc.iter(function(line) {
+ var estHeight = est(line);
+ if (estHeight != line.height) updateLineHeight(line, estHeight);
+ });
+ }
+
+ function themeChanged(cm) {
+ cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
+ cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
+ clearCaches(cm);
+ }
+
+ function guttersChanged(cm) {
+ updateGutters(cm);
+ regChange(cm);
+ setTimeout(function(){alignHorizontally(cm);}, 20);
+ }
+
+ // Rebuild the gutter elements, ensure the margin to the left of the
+ // code matches their width.
+ function updateGutters(cm) {
+ var gutters = cm.display.gutters, specs = cm.options.gutters;
+ removeChildren(gutters);
+ for (var i = 0; i < specs.length; ++i) {
+ var gutterClass = specs[i];
+ var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
+ if (gutterClass == "CodeMirror-linenumbers") {
+ cm.display.lineGutter = gElt;
+ gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
+ }
+ }
+ gutters.style.display = i ? "" : "none";
+ updateGutterSpace(cm);
+ }
+
+ function updateGutterSpace(cm) {
+ var width = cm.display.gutters.offsetWidth;
+ cm.display.sizer.style.marginLeft = width + "px";
+ }
+
+ // Compute the character length of a line, taking into account
+ // collapsed ranges (see markText) that might hide parts, and join
+ // other lines onto it.
+ function lineLength(line) {
+ if (line.height == 0) return 0;
+ var len = line.text.length, merged, cur = line;
+ while (merged = collapsedSpanAtStart(cur)) {
+ var found = merged.find(0, true);
+ cur = found.from.line;
+ len += found.from.ch - found.to.ch;
+ }
+ cur = line;
+ while (merged = collapsedSpanAtEnd(cur)) {
+ var found = merged.find(0, true);
+ len -= cur.text.length - found.from.ch;
+ cur = found.to.line;
+ len += cur.text.length - found.to.ch;
+ }
+ return len;
+ }
+
+ // Find the longest line in the document.
+ function findMaxLine(cm) {
+ var d = cm.display, doc = cm.doc;
+ d.maxLine = getLine(doc, doc.first);
+ d.maxLineLength = lineLength(d.maxLine);
+ d.maxLineChanged = true;
+ doc.iter(function(line) {
+ var len = lineLength(line);
+ if (len > d.maxLineLength) {
+ d.maxLineLength = len;
+ d.maxLine = line;
+ }
+ });
+ }
+
+ // Make sure the gutters options contains the element
+ // "CodeMirror-linenumbers" when the lineNumbers option is true.
+ function setGuttersForLineNumbers(options) {
+ var found = indexOf(options.gutters, "CodeMirror-linenumbers");
+ if (found == -1 && options.lineNumbers) {
+ options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
+ } else if (found > -1 && !options.lineNumbers) {
+ options.gutters = options.gutters.slice(0);
+ options.gutters.splice(found, 1);
+ }
+ }
+
+ // SCROLLBARS
+
+ // Prepare DOM reads needed to update the scrollbars. Done in one
+ // shot to minimize update/measure roundtrips.
+ function measureForScrollbars(cm) {
+ var d = cm.display, gutterW = d.gutters.offsetWidth;
+ var docH = Math.round(cm.doc.height + paddingVert(cm.display));
+ return {
+ clientHeight: d.scroller.clientHeight,
+ viewHeight: d.wrapper.clientHeight,
+ scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
+ viewWidth: d.wrapper.clientWidth,
+ barLeft: cm.options.fixedGutter ? gutterW : 0,
+ docHeight: docH,
+ scrollHeight: docH + scrollGap(cm) + d.barHeight,
+ nativeBarWidth: d.nativeBarWidth,
+ gutterWidth: gutterW
+ };
+ }
+
+ function NativeScrollbars(place, scroll, cm) {
+ this.cm = cm;
+ var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
+ var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
+ place(vert); place(horiz);
+
+ on(vert, "scroll", function() {
+ if (vert.clientHeight) scroll(vert.scrollTop, "vertical");
+ });
+ on(horiz, "scroll", function() {
+ if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal");
+ });
+
+ this.checkedZeroWidth = false;
+ // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
+ if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px";
+ }
+
+ NativeScrollbars.prototype = copyObj({
+ update: function(measure) {
+ var needsH = measure.scrollWidth > measure.clientWidth + 1;
+ var needsV = measure.scrollHeight > measure.clientHeight + 1;
+ var sWidth = measure.nativeBarWidth;
+
+ if (needsV) {
+ this.vert.style.display = "block";
+ this.vert.style.bottom = needsH ? sWidth + "px" : "0";
+ var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
+ // A bug in IE8 can cause this value to be negative, so guard it.
+ this.vert.firstChild.style.height =
+ Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
+ } else {
+ this.vert.style.display = "";
+ this.vert.firstChild.style.height = "0";
+ }
+
+ if (needsH) {
+ this.horiz.style.display = "block";
+ this.horiz.style.right = needsV ? sWidth + "px" : "0";
+ this.horiz.style.left = measure.barLeft + "px";
+ var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
+ this.horiz.firstChild.style.width =
+ (measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
+ } else {
+ this.horiz.style.display = "";
+ this.horiz.firstChild.style.width = "0";
+ }
+
+ if (!this.checkedZeroWidth && measure.clientHeight > 0) {
+ if (sWidth == 0) this.zeroWidthHack();
+ this.checkedZeroWidth = true;
+ }
+
+ return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0};
+ },
+ setScrollLeft: function(pos) {
+ if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos;
+ if (this.disableHoriz) this.enableZeroWidthBar(this.horiz, this.disableHoriz);
+ },
+ setScrollTop: function(pos) {
+ if (this.vert.scrollTop != pos) this.vert.scrollTop = pos;
+ if (this.disableVert) this.enableZeroWidthBar(this.vert, this.disableVert);
+ },
+ zeroWidthHack: function() {
+ var w = mac && !mac_geMountainLion ? "12px" : "18px";
+ this.horiz.style.height = this.vert.style.width = w;
+ this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none";
+ this.disableHoriz = new Delayed;
+ this.disableVert = new Delayed;
+ },
+ enableZeroWidthBar: function(bar, delay) {
+ bar.style.pointerEvents = "auto";
+ function maybeDisable() {
+ // To find out whether the scrollbar is still visible, we
+ // check whether the element under the pixel in the bottom
+ // left corner of the scrollbar box is the scrollbar box
+ // itself (when the bar is still visible) or its filler child
+ // (when the bar is hidden). If it is still visible, we keep
+ // it enabled, if it's hidden, we disable pointer events.
+ var box = bar.getBoundingClientRect();
+ var elt = document.elementFromPoint(box.left + 1, box.bottom - 1);
+ if (elt != bar) bar.style.pointerEvents = "none";
+ else delay.set(1000, maybeDisable);
+ }
+ delay.set(1000, maybeDisable);
+ },
+ clear: function() {
+ var parent = this.horiz.parentNode;
+ parent.removeChild(this.horiz);
+ parent.removeChild(this.vert);
+ }
+ }, NativeScrollbars.prototype);
+
+ function NullScrollbars() {}
+
+ NullScrollbars.prototype = copyObj({
+ update: function() { return {bottom: 0, right: 0}; },
+ setScrollLeft: function() {},
+ setScrollTop: function() {},
+ clear: function() {}
+ }, NullScrollbars.prototype);
+
+ CodeMirror.scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};
+
+ function initScrollbars(cm) {
+ if (cm.display.scrollbars) {
+ cm.display.scrollbars.clear();
+ if (cm.display.scrollbars.addClass)
+ rmClass(cm.display.wrapper, cm.display.scrollbars.addClass);
+ }
+
+ cm.display.scrollbars = new CodeMirror.scrollbarModel[cm.options.scrollbarStyle](function(node) {
+ cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
+ // Prevent clicks in the scrollbars from killing focus
+ on(node, "mousedown", function() {
+ if (cm.state.focused) setTimeout(function() { cm.display.input.focus(); }, 0);
+ });
+ node.setAttribute("cm-not-content", "true");
+ }, function(pos, axis) {
+ if (axis == "horizontal") setScrollLeft(cm, pos);
+ else setScrollTop(cm, pos);
+ }, cm);
+ if (cm.display.scrollbars.addClass)
+ addClass(cm.display.wrapper, cm.display.scrollbars.addClass);
+ }
+
+ function updateScrollbars(cm, measure) {
+ if (!measure) measure = measureForScrollbars(cm);
+ var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
+ updateScrollbarsInner(cm, measure);
+ for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
+ if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
+ updateHeightsInViewport(cm);
+ updateScrollbarsInner(cm, measureForScrollbars(cm));
+ startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
+ }
+ }
+
+ // Re-synchronize the fake scrollbars with the actual size of the
+ // content.
+ function updateScrollbarsInner(cm, measure) {
+ var d = cm.display;
+ var sizes = d.scrollbars.update(measure);
+
+ d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
+ d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
+ d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"
+
+ if (sizes.right && sizes.bottom) {
+ d.scrollbarFiller.style.display = "block";
+ d.scrollbarFiller.style.height = sizes.bottom + "px";
+ d.scrollbarFiller.style.width = sizes.right + "px";
+ } else d.scrollbarFiller.style.display = "";
+ if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
+ d.gutterFiller.style.display = "block";
+ d.gutterFiller.style.height = sizes.bottom + "px";
+ d.gutterFiller.style.width = measure.gutterWidth + "px";
+ } else d.gutterFiller.style.display = "";
+ }
+
+ // Compute the lines that are visible in a given viewport (defaults
+ // the the current scroll position). viewport may contain top,
+ // height, and ensure (see op.scrollToPos) properties.
+ function visibleLines(display, doc, viewport) {
+ var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
+ top = Math.floor(top - paddingTop(display));
+ var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
+
+ var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
+ // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
+ // forces those lines into the viewport (if possible).
+ if (viewport && viewport.ensure) {
+ var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
+ if (ensureFrom < from) {
+ from = ensureFrom;
+ to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
+ } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
+ from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
+ to = ensureTo;
+ }
+ }
+ return {from: from, to: Math.max(to, from + 1)};
+ }
+
+ // LINE NUMBERS
+
+ // Re-align line numbers and gutter marks to compensate for
+ // horizontal scrolling.
+ function alignHorizontally(cm) {
+ var display = cm.display, view = display.view;
+ if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return;
+ var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
+ var gutterW = display.gutters.offsetWidth, left = comp + "px";
+ for (var i = 0; i < view.length; i++) if (!view[i].hidden) {
+ if (cm.options.fixedGutter && view[i].gutter)
+ view[i].gutter.style.left = left;
+ var align = view[i].alignable;
+ if (align) for (var j = 0; j < align.length; j++)
+ align[j].style.left = left;
+ }
+ if (cm.options.fixedGutter)
+ display.gutters.style.left = (comp + gutterW) + "px";
+ }
+
+ // Used to ensure that the line number gutter is still the right
+ // size for the current document size. Returns true when an update
+ // is needed.
+ function maybeUpdateLineNumberWidth(cm) {
+ if (!cm.options.lineNumbers) return false;
+ var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
+ if (last.length != display.lineNumChars) {
+ var test = display.measure.appendChild(elt("div", [elt("div", last)],
+ "CodeMirror-linenumber CodeMirror-gutter-elt"));
+ var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
+ display.lineGutter.style.width = "";
+ display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
+ display.lineNumWidth = display.lineNumInnerWidth + padding;
+ display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
+ display.lineGutter.style.width = display.lineNumWidth + "px";
+ updateGutterSpace(cm);
+ return true;
+ }
+ return false;
+ }
+
+ function lineNumberFor(options, i) {
+ return String(options.lineNumberFormatter(i + options.firstLineNumber));
+ }
+
+ // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
+ // but using getBoundingClientRect to get a sub-pixel-accurate
+ // result.
+ function compensateForHScroll(display) {
+ return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;
+ }
+
+ // DISPLAY DRAWING
+
+ function DisplayUpdate(cm, viewport, force) {
+ var display = cm.display;
+
+ this.viewport = viewport;
+ // Store some values that we'll need later (but don't want to force a relayout for)
+ this.visible = visibleLines(display, cm.doc, viewport);
+ this.editorIsHidden = !display.wrapper.offsetWidth;
+ this.wrapperHeight = display.wrapper.clientHeight;
+ this.wrapperWidth = display.wrapper.clientWidth;
+ this.oldDisplayWidth = displayWidth(cm);
+ this.force = force;
+ this.dims = getDimensions(cm);
+ this.events = [];
+ }
+
+ DisplayUpdate.prototype.signal = function(emitter, type) {
+ if (hasHandler(emitter, type))
+ this.events.push(arguments);
+ };
+ DisplayUpdate.prototype.finish = function() {
+ for (var i = 0; i < this.events.length; i++)
+ signal.apply(null, this.events[i]);
+ };
+
+ function maybeClipScrollbars(cm) {
+ var display = cm.display;
+ if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
+ display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
+ display.heightForcer.style.height = scrollGap(cm) + "px";
+ display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
+ display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
+ display.scrollbarsClipped = true;
+ }
+ }
+
+ // Does the actual updating of the line display. Bails out
+ // (returning false) when there is nothing to be done and forced is
+ // false.
+ function updateDisplayIfNeeded(cm, update) {
+ var display = cm.display, doc = cm.doc;
+
+ if (update.editorIsHidden) {
+ resetView(cm);
+ return false;
+ }
+
+ // Bail out if the visible area is already rendered and nothing changed.
+ if (!update.force &&
+ update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
+ display.renderedView == display.view && countDirtyView(cm) == 0)
+ return false;
+
+ if (maybeUpdateLineNumberWidth(cm)) {
+ resetView(cm);
+ update.dims = getDimensions(cm);
+ }
+
+ // Compute a suitable new viewport (from & to)
+ var end = doc.first + doc.size;
+ var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
+ var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
+ if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom);
+ if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo);
+ if (sawCollapsedSpans) {
+ from = visualLineNo(cm.doc, from);
+ to = visualLineEndNo(cm.doc, to);
+ }
+
+ var different = from != display.viewFrom || to != display.viewTo ||
+ display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
+ adjustView(cm, from, to);
+
+ display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
+ // Position the mover div to align with the current scroll position
+ cm.display.mover.style.top = display.viewOffset + "px";
+
+ var toUpdate = countDirtyView(cm);
+ if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
+ return false;
+
+ // For big changes, we hide the enclosing element during the
+ // update, since that speeds up the operations on most browsers.
+ var focused = activeElt();
+ if (toUpdate > 4) display.lineDiv.style.display = "none";
+ patchDisplay(cm, display.updateLineNumbers, update.dims);
+ if (toUpdate > 4) display.lineDiv.style.display = "";
+ display.renderedView = display.view;
+ // There might have been a widget with a focused element that got
+ // hidden or updated, if so re-focus it.
+ if (focused && activeElt() != focused && focused.offsetHeight) focused.focus();
+
+ // Prevent selection and cursors from interfering with the scroll
+ // width and height.
+ removeChildren(display.cursorDiv);
+ removeChildren(display.selectionDiv);
+ display.gutters.style.height = display.sizer.style.minHeight = 0;
+
+ if (different) {
+ display.lastWrapHeight = update.wrapperHeight;
+ display.lastWrapWidth = update.wrapperWidth;
+ startWorker(cm, 400);
+ }
+
+ display.updateLineNumbers = null;
+
+ return true;
+ }
+
+ function postUpdateDisplay(cm, update) {
+ var viewport = update.viewport;
+
+ for (var first = true;; first = false) {
+ if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
+ // Clip forced viewport to actual scrollable area.
+ if (viewport && viewport.top != null)
+ viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)};
+ // Updated line heights might result in the drawn area not
+ // actually covering the viewport. Keep looping until it does.
+ update.visible = visibleLines(cm.display, cm.doc, viewport);
+ if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
+ break;
+ }
+ if (!updateDisplayIfNeeded(cm, update)) break;
+ updateHeightsInViewport(cm);
+ var barMeasure = measureForScrollbars(cm);
+ updateSelection(cm);
+ updateScrollbars(cm, barMeasure);
+ setDocumentHeight(cm, barMeasure);
+ }
+
+ update.signal(cm, "update", cm);
+ if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
+ update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
+ cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
+ }
+ }
+
+ function updateDisplaySimple(cm, viewport) {
+ var update = new DisplayUpdate(cm, viewport);
+ if (updateDisplayIfNeeded(cm, update)) {
+ updateHeightsInViewport(cm);
+ postUpdateDisplay(cm, update);
+ var barMeasure = measureForScrollbars(cm);
+ updateSelection(cm);
+ updateScrollbars(cm, barMeasure);
+ setDocumentHeight(cm, barMeasure);
+ update.finish();
+ }
+ }
+
+ function setDocumentHeight(cm, measure) {
+ cm.display.sizer.style.minHeight = measure.docHeight + "px";
+ cm.display.heightForcer.style.top = measure.docHeight + "px";
+ cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
+ }
+
+ // Read the actual heights of the rendered lines, and update their
+ // stored heights to match.
+ function updateHeightsInViewport(cm) {
+ var display = cm.display;
+ var prevBottom = display.lineDiv.offsetTop;
+ for (var i = 0; i < display.view.length; i++) {
+ var cur = display.view[i], height;
+ if (cur.hidden) continue;
+ if (ie && ie_version < 8) {
+ var bot = cur.node.offsetTop + cur.node.offsetHeight;
+ height = bot - prevBottom;
+ prevBottom = bot;
+ } else {
+ var box = cur.node.getBoundingClientRect();
+ height = box.bottom - box.top;
+ }
+ var diff = cur.line.height - height;
+ if (height < 2) height = textHeight(display);
+ if (diff > .001 || diff < -.001) {
+ updateLineHeight(cur.line, height);
+ updateWidgetHeight(cur.line);
+ if (cur.rest) for (var j = 0; j < cur.rest.length; j++)
+ updateWidgetHeight(cur.rest[j]);
+ }
+ }
+ }
+
+ // Read and store the height of line widgets associated with the
+ // given line.
+ function updateWidgetHeight(line) {
+ if (line.widgets) for (var i = 0; i < line.widgets.length; ++i)
+ line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight;
+ }
+
+ // Do a bulk-read of the DOM positions and sizes needed to draw the
+ // view, so that we don't interleave reading and writing to the DOM.
+ function getDimensions(cm) {
+ var d = cm.display, left = {}, width = {};
+ var gutterLeft = d.gutters.clientLeft;
+ for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
+ left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;
+ width[cm.options.gutters[i]] = n.clientWidth;
+ }
+ return {fixedPos: compensateForHScroll(d),
+ gutterTotalWidth: d.gutters.offsetWidth,
+ gutterLeft: left,
+ gutterWidth: width,
+ wrapperWidth: d.wrapper.clientWidth};
+ }
+
+ // Sync the actual display DOM structure with display.view, removing
+ // nodes for lines that are no longer in view, and creating the ones
+ // that are not there yet, and updating the ones that are out of
+ // date.
+ function patchDisplay(cm, updateNumbersFrom, dims) {
+ var display = cm.display, lineNumbers = cm.options.lineNumbers;
+ var container = display.lineDiv, cur = container.firstChild;
+
+ function rm(node) {
+ var next = node.nextSibling;
+ // Works around a throw-scroll bug in OS X Webkit
+ if (webkit && mac && cm.display.currentWheelTarget == node)
+ node.style.display = "none";
+ else
+ node.parentNode.removeChild(node);
+ return next;
+ }
+
+ var view = display.view, lineN = display.viewFrom;
+ // Loop over the elements in the view, syncing cur (the DOM nodes
+ // in display.lineDiv) with the view as we go.
+ for (var i = 0; i < view.length; i++) {
+ var lineView = view[i];
+ if (lineView.hidden) {
+ } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
+ var node = buildLineElement(cm, lineView, lineN, dims);
+ container.insertBefore(node, cur);
+ } else { // Already drawn
+ while (cur != lineView.node) cur = rm(cur);
+ var updateNumber = lineNumbers && updateNumbersFrom != null &&
+ updateNumbersFrom <= lineN && lineView.lineNumber;
+ if (lineView.changes) {
+ if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false;
+ updateLineForChanges(cm, lineView, lineN, dims);
+ }
+ if (updateNumber) {
+ removeChildren(lineView.lineNumber);
+ lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
+ }
+ cur = lineView.node.nextSibling;
+ }
+ lineN += lineView.size;
+ }
+ while (cur) cur = rm(cur);
+ }
+
+ // When an aspect of a line changes, a string is added to
+ // lineView.changes. This updates the relevant part of the line's
+ // DOM structure.
+ function updateLineForChanges(cm, lineView, lineN, dims) {
+ for (var j = 0; j < lineView.changes.length; j++) {
+ var type = lineView.changes[j];
+ if (type == "text") updateLineText(cm, lineView);
+ else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims);
+ else if (type == "class") updateLineClasses(lineView);
+ else if (type == "widget") updateLineWidgets(cm, lineView, dims);
+ }
+ lineView.changes = null;
+ }
+
+ // Lines with gutter elements, widgets or a background class need to
+ // be wrapped, and have the extra elements added to the wrapper div
+ function ensureLineWrapped(lineView) {
+ if (lineView.node == lineView.text) {
+ lineView.node = elt("div", null, null, "position: relative");
+ if (lineView.text.parentNode)
+ lineView.text.parentNode.replaceChild(lineView.node, lineView.text);
+ lineView.node.appendChild(lineView.text);
+ if (ie && ie_version < 8) lineView.node.style.zIndex = 2;
+ }
+ return lineView.node;
+ }
+
+ function updateLineBackground(lineView) {
+ var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
+ if (cls) cls += " CodeMirror-linebackground";
+ if (lineView.background) {
+ if (cls) lineView.background.className = cls;
+ else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
+ } else if (cls) {
+ var wrap = ensureLineWrapped(lineView);
+ lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
+ }
+ }
+
+ // Wrapper around buildLineContent which will reuse the structure
+ // in display.externalMeasured when possible.
+ function getLineContent(cm, lineView) {
+ var ext = cm.display.externalMeasured;
+ if (ext && ext.line == lineView.line) {
+ cm.display.externalMeasured = null;
+ lineView.measure = ext.measure;
+ return ext.built;
+ }
+ return buildLineContent(cm, lineView);
+ }
+
+ // Redraw the line's text. Interacts with the background and text
+ // classes because the mode may output tokens that influence these
+ // classes.
+ function updateLineText(cm, lineView) {
+ var cls = lineView.text.className;
+ var built = getLineContent(cm, lineView);
+ if (lineView.text == lineView.node) lineView.node = built.pre;
+ lineView.text.parentNode.replaceChild(built.pre, lineView.text);
+ lineView.text = built.pre;
+ if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
+ lineView.bgClass = built.bgClass;
+ lineView.textClass = built.textClass;
+ updateLineClasses(lineView);
+ } else if (cls) {
+ lineView.text.className = cls;
+ }
+ }
+
+ function updateLineClasses(lineView) {
+ updateLineBackground(lineView);
+ if (lineView.line.wrapClass)
+ ensureLineWrapped(lineView).className = lineView.line.wrapClass;
+ else if (lineView.node != lineView.text)
+ lineView.node.className = "";
+ var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
+ lineView.text.className = textClass || "";
+ }
+
+ function updateLineGutter(cm, lineView, lineN, dims) {
+ if (lineView.gutter) {
+ lineView.node.removeChild(lineView.gutter);
+ lineView.gutter = null;
+ }
+ if (lineView.gutterBackground) {
+ lineView.node.removeChild(lineView.gutterBackground);
+ lineView.gutterBackground = null;
+ }
+ if (lineView.line.gutterClass) {
+ var wrap = ensureLineWrapped(lineView);
+ lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
+ "left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) +
+ "px; width: " + dims.gutterTotalWidth + "px");
+ wrap.insertBefore(lineView.gutterBackground, lineView.text);
+ }
+ var markers = lineView.line.gutterMarkers;
+ if (cm.options.lineNumbers || markers) {
+ var wrap = ensureLineWrapped(lineView);
+ var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", "left: " +
+ (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px");
+ cm.display.input.setUneditable(gutterWrap);
+ wrap.insertBefore(gutterWrap, lineView.text);
+ if (lineView.line.gutterClass)
+ gutterWrap.className += " " + lineView.line.gutterClass;
+ if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
+ lineView.lineNumber = gutterWrap.appendChild(
+ elt("div", lineNumberFor(cm.options, lineN),
+ "CodeMirror-linenumber CodeMirror-gutter-elt",
+ "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: "
+ + cm.display.lineNumInnerWidth + "px"));
+ if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) {
+ var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
+ if (found)
+ gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " +
+ dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px"));
+ }
+ }
+ }
+
+ function updateLineWidgets(cm, lineView, dims) {
+ if (lineView.alignable) lineView.alignable = null;
+ for (var node = lineView.node.firstChild, next; node; node = next) {
+ var next = node.nextSibling;
+ if (node.className == "CodeMirror-linewidget")
+ lineView.node.removeChild(node);
+ }
+ insertLineWidgets(cm, lineView, dims);
+ }
+
+ // Build a line's DOM representation from scratch
+ function buildLineElement(cm, lineView, lineN, dims) {
+ var built = getLineContent(cm, lineView);
+ lineView.text = lineView.node = built.pre;
+ if (built.bgClass) lineView.bgClass = built.bgClass;
+ if (built.textClass) lineView.textClass = built.textClass;
+
+ updateLineClasses(lineView);
+ updateLineGutter(cm, lineView, lineN, dims);
+ insertLineWidgets(cm, lineView, dims);
+ return lineView.node;
+ }
+
+ // A lineView may contain multiple logical lines (when merged by
+ // collapsed spans). The widgets for all of them need to be drawn.
+ function insertLineWidgets(cm, lineView, dims) {
+ insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
+ if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
+ insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false);
+ }
+
+ function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
+ if (!line.widgets) return;
+ var wrap = ensureLineWrapped(lineView);
+ for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
+ var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
+ if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true");
+ positionLineWidget(widget, node, lineView, dims);
+ cm.display.input.setUneditable(node);
+ if (allowAbove && widget.above)
+ wrap.insertBefore(node, lineView.gutter || lineView.text);
+ else
+ wrap.appendChild(node);
+ signalLater(widget, "redraw");
+ }
+ }
+
+ function positionLineWidget(widget, node, lineView, dims) {
+ if (widget.noHScroll) {
+ (lineView.alignable || (lineView.alignable = [])).push(node);
+ var width = dims.wrapperWidth;
+ node.style.left = dims.fixedPos + "px";
+ if (!widget.coverGutter) {
+ width -= dims.gutterTotalWidth;
+ node.style.paddingLeft = dims.gutterTotalWidth + "px";
+ }
+ node.style.width = width + "px";
+ }
+ if (widget.coverGutter) {
+ node.style.zIndex = 5;
+ node.style.position = "relative";
+ if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px";
+ }
+ }
+
+ // POSITION OBJECT
+
+ // A Pos instance represents a position within the text.
+ var Pos = CodeMirror.Pos = function(line, ch) {
+ if (!(this instanceof Pos)) return new Pos(line, ch);
+ this.line = line; this.ch = ch;
+ };
+
+ // Compare two positions, return 0 if they are the same, a negative
+ // number when a is less, and a positive number otherwise.
+ var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; };
+
+ function copyPos(x) {return Pos(x.line, x.ch);}
+ function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; }
+ function minPos(a, b) { return cmp(a, b) < 0 ? a : b; }
+
+ // INPUT HANDLING
+
+ function ensureFocus(cm) {
+ if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
+ }
+
+ // This will be set to a {lineWise: bool, text: [string]} object, so
+ // that, when pasting, we know what kind of selections the copied
+ // text was made out of.
+ var lastCopied = null;
+
+ function applyTextInput(cm, inserted, deleted, sel, origin) {
+ var doc = cm.doc;
+ cm.display.shift = false;
+ if (!sel) sel = doc.sel;
+
+ var paste = cm.state.pasteIncoming || origin == "paste";
+ var textLines = doc.splitLines(inserted), multiPaste = null
+ // When pasing N lines into N selections, insert one line per selection
+ if (paste && sel.ranges.length > 1) {
+ if (lastCopied && lastCopied.text.join("\n") == inserted) {
+ if (sel.ranges.length % lastCopied.text.length == 0) {
+ multiPaste = [];
+ for (var i = 0; i < lastCopied.text.length; i++)
+ multiPaste.push(doc.splitLines(lastCopied.text[i]));
+ }
+ } else if (textLines.length == sel.ranges.length) {
+ multiPaste = map(textLines, function(l) { return [l]; });
+ }
+ }
+
+ // Normal behavior is to insert the new text into every selection
+ for (var i = sel.ranges.length - 1; i >= 0; i--) {
+ var range = sel.ranges[i];
+ var from = range.from(), to = range.to();
+ if (range.empty()) {
+ if (deleted && deleted > 0) // Handle deletion
+ from = Pos(from.line, from.ch - deleted);
+ else if (cm.state.overwrite && !paste) // Handle overwrite
+ to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length));
+ else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted)
+ from = to = Pos(from.line, 0)
+ }
+ var updateInput = cm.curOp.updateInput;
+ var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
+ origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")};
+ makeChange(cm.doc, changeEvent);
+ signalLater(cm, "inputRead", cm, changeEvent);
+ }
+ if (inserted && !paste)
+ triggerElectric(cm, inserted);
+
+ ensureCursorVisible(cm);
+ cm.curOp.updateInput = updateInput;
+ cm.curOp.typing = true;
+ cm.state.pasteIncoming = cm.state.cutIncoming = false;
+ }
+
+ function handlePaste(e, cm) {
+ var pasted = e.clipboardData && e.clipboardData.getData("text/plain");
+ if (pasted) {
+ e.preventDefault();
+ if (!cm.isReadOnly() && !cm.options.disableInput)
+ runInOp(cm, function() { applyTextInput(cm, pasted, 0, null, "paste"); });
+ return true;
+ }
+ }
+
+ function triggerElectric(cm, inserted) {
+ // When an 'electric' character is inserted, immediately trigger a reindent
+ if (!cm.options.electricChars || !cm.options.smartIndent) return;
+ var sel = cm.doc.sel;
+
+ for (var i = sel.ranges.length - 1; i >= 0; i--) {
+ var range = sel.ranges[i];
+ if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue;
+ var mode = cm.getModeAt(range.head);
+ var indented = false;
+ if (mode.electricChars) {
+ for (var j = 0; j < mode.electricChars.length; j++)
+ if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
+ indented = indentLine(cm, range.head.line, "smart");
+ break;
+ }
+ } else if (mode.electricInput) {
+ if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
+ indented = indentLine(cm, range.head.line, "smart");
+ }
+ if (indented) signalLater(cm, "electricInput", cm, range.head.line);
+ }
+ }
+
+ function copyableRanges(cm) {
+ var text = [], ranges = [];
+ for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
+ var line = cm.doc.sel.ranges[i].head.line;
+ var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
+ ranges.push(lineRange);
+ text.push(cm.getRange(lineRange.anchor, lineRange.head));
+ }
+ return {text: text, ranges: ranges};
+ }
+
+ function disableBrowserMagic(field) {
+ field.setAttribute("autocorrect", "off");
+ field.setAttribute("autocapitalize", "off");
+ field.setAttribute("spellcheck", "false");
+ }
+
+ // TEXTAREA INPUT STYLE
+
+ function TextareaInput(cm) {
+ this.cm = cm;
+ // See input.poll and input.reset
+ this.prevInput = "";
+
+ // Flag that indicates whether we expect input to appear real soon
+ // now (after some event like 'keypress' or 'input') and are
+ // polling intensively.
+ this.pollingFast = false;
+ // Self-resetting timeout for the poller
+ this.polling = new Delayed();
+ // Tracks when input.reset has punted to just putting a short
+ // string into the textarea instead of the full selection.
+ this.inaccurateSelection = false;
+ // Used to work around IE issue with selection being forgotten when focus moves away from textarea
+ this.hasSelection = false;
+ this.composing = null;
+ };
+
+ function hiddenTextarea() {
+ var te = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none");
+ var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
+ // The textarea is kept positioned near the cursor to prevent the
+ // fact that it'll be scrolled into view on input from scrolling
+ // our fake cursor out of view. On webkit, when wrap=off, paste is
+ // very slow. So make the area wide instead.
+ if (webkit) te.style.width = "1000px";
+ else te.setAttribute("wrap", "off");
+ // If border: 0; -- iOS fails to open keyboard (issue #1287)
+ if (ios) te.style.border = "1px solid black";
+ disableBrowserMagic(te);
+ return div;
+ }
+
+ TextareaInput.prototype = copyObj({
+ init: function(display) {
+ var input = this, cm = this.cm;
+
+ // Wraps and hides input textarea
+ var div = this.wrapper = hiddenTextarea();
+ // The semihidden textarea that is focused when the editor is
+ // focused, and receives input.
+ var te = this.textarea = div.firstChild;
+ display.wrapper.insertBefore(div, display.wrapper.firstChild);
+
+ // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
+ if (ios) te.style.width = "0px";
+
+ on(te, "input", function() {
+ if (ie && ie_version >= 9 && input.hasSelection) input.hasSelection = null;
+ input.poll();
+ });
+
+ on(te, "paste", function(e) {
+ if (signalDOMEvent(cm, e) || handlePaste(e, cm)) return
+
+ cm.state.pasteIncoming = true;
+ input.fastPoll();
+ });
+
+ function prepareCopyCut(e) {
+ if (signalDOMEvent(cm, e)) return
+ if (cm.somethingSelected()) {
+ lastCopied = {lineWise: false, text: cm.getSelections()};
+ if (input.inaccurateSelection) {
+ input.prevInput = "";
+ input.inaccurateSelection = false;
+ te.value = lastCopied.text.join("\n");
+ selectInput(te);
+ }
+ } else if (!cm.options.lineWiseCopyCut) {
+ return;
+ } else {
+ var ranges = copyableRanges(cm);
+ lastCopied = {lineWise: true, text: ranges.text};
+ if (e.type == "cut") {
+ cm.setSelections(ranges.ranges, null, sel_dontScroll);
+ } else {
+ input.prevInput = "";
+ te.value = ranges.text.join("\n");
+ selectInput(te);
+ }
+ }
+ if (e.type == "cut") cm.state.cutIncoming = true;
+ }
+ on(te, "cut", prepareCopyCut);
+ on(te, "copy", prepareCopyCut);
+
+ on(display.scroller, "paste", function(e) {
+ if (eventInWidget(display, e) || signalDOMEvent(cm, e)) return;
+ cm.state.pasteIncoming = true;
+ input.focus();
+ });
+
+ // Prevent normal selection in the editor (we handle our own)
+ on(display.lineSpace, "selectstart", function(e) {
+ if (!eventInWidget(display, e)) e_preventDefault(e);
+ });
+
+ on(te, "compositionstart", function() {
+ var start = cm.getCursor("from");
+ if (input.composing) input.composing.range.clear()
+ input.composing = {
+ start: start,
+ range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
+ };
+ });
+ on(te, "compositionend", function() {
+ if (input.composing) {
+ input.poll();
+ input.composing.range.clear();
+ input.composing = null;
+ }
+ });
+ },
+
+ prepareSelection: function() {
+ // Redraw the selection and/or cursor
+ var cm = this.cm, display = cm.display, doc = cm.doc;
+ var result = prepareSelection(cm);
+
+ // Move the hidden textarea near the cursor to prevent scrolling artifacts
+ if (cm.options.moveInputWithCursor) {
+ var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
+ var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
+ result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
+ headPos.top + lineOff.top - wrapOff.top));
+ result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
+ headPos.left + lineOff.left - wrapOff.left));
+ }
+
+ return result;
+ },
+
+ showSelection: function(drawn) {
+ var cm = this.cm, display = cm.display;
+ removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
+ removeChildrenAndAdd(display.selectionDiv, drawn.selection);
+ if (drawn.teTop != null) {
+ this.wrapper.style.top = drawn.teTop + "px";
+ this.wrapper.style.left = drawn.teLeft + "px";
+ }
+ },
+
+ // Reset the input to correspond to the selection (or to be empty,
+ // when not typing and nothing is selected)
+ reset: function(typing) {
+ if (this.contextMenuPending) return;
+ var minimal, selected, cm = this.cm, doc = cm.doc;
+ if (cm.somethingSelected()) {
+ this.prevInput = "";
+ var range = doc.sel.primary();
+ minimal = hasCopyEvent &&
+ (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000);
+ var content = minimal ? "-" : selected || cm.getSelection();
+ this.textarea.value = content;
+ if (cm.state.focused) selectInput(this.textarea);
+ if (ie && ie_version >= 9) this.hasSelection = content;
+ } else if (!typing) {
+ this.prevInput = this.textarea.value = "";
+ if (ie && ie_version >= 9) this.hasSelection = null;
+ }
+ this.inaccurateSelection = minimal;
+ },
+
+ getField: function() { return this.textarea; },
+
+ supportsTouch: function() { return false; },
+
+ focus: function() {
+ if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
+ try { this.textarea.focus(); }
+ catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
+ }
+ },
+
+ blur: function() { this.textarea.blur(); },
+
+ resetPosition: function() {
+ this.wrapper.style.top = this.wrapper.style.left = 0;
+ },
+
+ receivedFocus: function() { this.slowPoll(); },
+
+ // Poll for input changes, using the normal rate of polling. This
+ // runs as long as the editor is focused.
+ slowPoll: function() {
+ var input = this;
+ if (input.pollingFast) return;
+ input.polling.set(this.cm.options.pollInterval, function() {
+ input.poll();
+ if (input.cm.state.focused) input.slowPoll();
+ });
+ },
+
+ // When an event has just come in that is likely to add or change
+ // something in the input textarea, we poll faster, to ensure that
+ // the change appears on the screen quickly.
+ fastPoll: function() {
+ var missed = false, input = this;
+ input.pollingFast = true;
+ function p() {
+ var changed = input.poll();
+ if (!changed && !missed) {missed = true; input.polling.set(60, p);}
+ else {input.pollingFast = false; input.slowPoll();}
+ }
+ input.polling.set(20, p);
+ },
+
+ // Read input from the textarea, and update the document to match.
+ // When something is selected, it is present in the textarea, and
+ // selected (unless it is huge, in which case a placeholder is
+ // used). When nothing is selected, the cursor sits after previously
+ // seen text (can be empty), which is stored in prevInput (we must
+ // not reset the textarea when typing, because that breaks IME).
+ poll: function() {
+ var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
+ // Since this is called a *lot*, try to bail out as cheaply as
+ // possible when it is clear that nothing happened. hasSelection
+ // will be the case when there is a lot of text in the textarea,
+ // in which case reading its value would be expensive.
+ if (this.contextMenuPending || !cm.state.focused ||
+ (hasSelection(input) && !prevInput && !this.composing) ||
+ cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
+ return false;
+
+ var text = input.value;
+ // If nothing changed, bail.
+ if (text == prevInput && !cm.somethingSelected()) return false;
+ // Work around nonsensical selection resetting in IE9/10, and
+ // inexplicable appearance of private area unicode characters on
+ // some key combos in Mac (#2689).
+ if (ie && ie_version >= 9 && this.hasSelection === text ||
+ mac && /[\uf700-\uf7ff]/.test(text)) {
+ cm.display.input.reset();
+ return false;
+ }
+
+ if (cm.doc.sel == cm.display.selForContextMenu) {
+ var first = text.charCodeAt(0);
+ if (first == 0x200b && !prevInput) prevInput = "\u200b";
+ if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo"); }
+ }
+ // Find the part of the input that is actually new
+ var same = 0, l = Math.min(prevInput.length, text.length);
+ while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same;
+
+ var self = this;
+ runInOp(cm, function() {
+ applyTextInput(cm, text.slice(same), prevInput.length - same,
+ null, self.composing ? "*compose" : null);
+
+ // Don't leave long text in the textarea, since it makes further polling slow
+ if (text.length > 1000 || text.indexOf("\n") > -1) input.value = self.prevInput = "";
+ else self.prevInput = text;
+
+ if (self.composing) {
+ self.composing.range.clear();
+ self.composing.range = cm.markText(self.composing.start, cm.getCursor("to"),
+ {className: "CodeMirror-composing"});
+ }
+ });
+ return true;
+ },
+
+ ensurePolled: function() {
+ if (this.pollingFast && this.poll()) this.pollingFast = false;
+ },
+
+ onKeyPress: function() {
+ if (ie && ie_version >= 9) this.hasSelection = null;
+ this.fastPoll();
+ },
+
+ onContextMenu: function(e) {
+ var input = this, cm = input.cm, display = cm.display, te = input.textarea;
+ var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
+ if (!pos || presto) return; // Opera is difficult.
+
+ // Reset the current text selection only if the click is done outside of the selection
+ // and 'resetSelectionOnContextMenu' option is true.
+ var reset = cm.options.resetSelectionOnContextMenu;
+ if (reset && cm.doc.sel.contains(pos) == -1)
+ operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll);
+
+ var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;
+ input.wrapper.style.cssText = "position: absolute"
+ var wrapperBox = input.wrapper.getBoundingClientRect()
+ te.style.cssText = "position: absolute; width: 30px; height: 30px; top: " + (e.clientY - wrapperBox.top - 5) +
+ "px; left: " + (e.clientX - wrapperBox.left - 5) + "px; z-index: 1000; background: " +
+ (ie ? "rgba(255, 255, 255, .05)" : "transparent") +
+ "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
+ if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712)
+ display.input.focus();
+ if (webkit) window.scrollTo(null, oldScrollY);
+ display.input.reset();
+ // Adds "Select all" to context menu in FF
+ if (!cm.somethingSelected()) te.value = input.prevInput = " ";
+ input.contextMenuPending = true;
+ display.selForContextMenu = cm.doc.sel;
+ clearTimeout(display.detectingSelectAll);
+
+ // Select-all will be greyed out if there's nothing to select, so
+ // this adds a zero-width space so that we can later check whether
+ // it got selected.
+ function prepareSelectAllHack() {
+ if (te.selectionStart != null) {
+ var selected = cm.somethingSelected();
+ var extval = "\u200b" + (selected ? te.value : "");
+ te.value = "\u21da"; // Used to catch context-menu undo
+ te.value = extval;
+ input.prevInput = selected ? "" : "\u200b";
+ te.selectionStart = 1; te.selectionEnd = extval.length;
+ // Re-set this, in case some other handler touched the
+ // selection in the meantime.
+ display.selForContextMenu = cm.doc.sel;
+ }
+ }
+ function rehide() {
+ input.contextMenuPending = false;
+ input.wrapper.style.cssText = oldWrapperCSS
+ te.style.cssText = oldCSS;
+ if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos);
+
+ // Try to detect the user choosing select-all
+ if (te.selectionStart != null) {
+ if (!ie || (ie && ie_version < 9)) prepareSelectAllHack();
+ var i = 0, poll = function() {
+ if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
+ te.selectionEnd > 0 && input.prevInput == "\u200b")
+ operation(cm, commands.selectAll)(cm);
+ else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500);
+ else display.input.reset();
+ };
+ display.detectingSelectAll = setTimeout(poll, 200);
+ }
+ }
+
+ if (ie && ie_version >= 9) prepareSelectAllHack();
+ if (captureRightClick) {
+ e_stop(e);
+ var mouseup = function() {
+ off(window, "mouseup", mouseup);
+ setTimeout(rehide, 20);
+ };
+ on(window, "mouseup", mouseup);
+ } else {
+ setTimeout(rehide, 50);
+ }
+ },
+
+ readOnlyChanged: function(val) {
+ if (!val) this.reset();
+ },
+
+ setUneditable: nothing,
+
+ needsContentAttribute: false
+ }, TextareaInput.prototype);
+
+ // CONTENTEDITABLE INPUT STYLE
+
+ function ContentEditableInput(cm) {
+ this.cm = cm;
+ this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
+ this.polling = new Delayed();
+ this.gracePeriod = false;
+ }
+
+ ContentEditableInput.prototype = copyObj({
+ init: function(display) {
+ var input = this, cm = input.cm;
+ var div = input.div = display.lineDiv;
+ disableBrowserMagic(div);
+
+ on(div, "paste", function(e) {
+ if (!signalDOMEvent(cm, e)) handlePaste(e, cm);
+ })
+
+ on(div, "compositionstart", function(e) {
+ var data = e.data;
+ input.composing = {sel: cm.doc.sel, data: data, startData: data};
+ if (!data) return;
+ var prim = cm.doc.sel.primary();
+ var line = cm.getLine(prim.head.line);
+ var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length));
+ if (found > -1 && found <= prim.head.ch)
+ input.composing.sel = simpleSelection(Pos(prim.head.line, found),
+ Pos(prim.head.line, found + data.length));
+ });
+ on(div, "compositionupdate", function(e) {
+ input.composing.data = e.data;
+ });
+ on(div, "compositionend", function(e) {
+ var ours = input.composing;
+ if (!ours) return;
+ if (e.data != ours.startData && !/\u200b/.test(e.data))
+ ours.data = e.data;
+ // Need a small delay to prevent other code (input event,
+ // selection polling) from doing damage when fired right after
+ // compositionend.
+ setTimeout(function() {
+ if (!ours.handled)
+ input.applyComposition(ours);
+ if (input.composing == ours)
+ input.composing = null;
+ }, 50);
+ });
+
+ on(div, "touchstart", function() {
+ input.forceCompositionEnd();
+ });
+
+ on(div, "input", function() {
+ if (input.composing) return;
+ if (cm.isReadOnly() || !input.pollContent())
+ runInOp(input.cm, function() {regChange(cm);});
+ });
+
+ function onCopyCut(e) {
+ if (signalDOMEvent(cm, e)) return
+ if (cm.somethingSelected()) {
+ lastCopied = {lineWise: false, text: cm.getSelections()};
+ if (e.type == "cut") cm.replaceSelection("", null, "cut");
+ } else if (!cm.options.lineWiseCopyCut) {
+ return;
+ } else {
+ var ranges = copyableRanges(cm);
+ lastCopied = {lineWise: true, text: ranges.text};
+ if (e.type == "cut") {
+ cm.operation(function() {
+ cm.setSelections(ranges.ranges, 0, sel_dontScroll);
+ cm.replaceSelection("", null, "cut");
+ });
+ }
+ }
+ // iOS exposes the clipboard API, but seems to discard content inserted into it
+ if (e.clipboardData && !ios) {
+ e.preventDefault();
+ e.clipboardData.clearData();
+ e.clipboardData.setData("text/plain", lastCopied.text.join("\n"));
+ } else {
+ // Old-fashioned briefly-focus-a-textarea hack
+ var kludge = hiddenTextarea(), te = kludge.firstChild;
+ cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
+ te.value = lastCopied.text.join("\n");
+ var hadFocus = document.activeElement;
+ selectInput(te);
+ setTimeout(function() {
+ cm.display.lineSpace.removeChild(kludge);
+ hadFocus.focus();
+ }, 50);
+ }
+ }
+ on(div, "copy", onCopyCut);
+ on(div, "cut", onCopyCut);
+ },
+
+ prepareSelection: function() {
+ var result = prepareSelection(this.cm, false);
+ result.focus = this.cm.state.focused;
+ return result;
+ },
+
+ showSelection: function(info, takeFocus) {
+ if (!info || !this.cm.display.view.length) return;
+ if (info.focus || takeFocus) this.showPrimarySelection();
+ this.showMultipleSelections(info);
+ },
+
+ showPrimarySelection: function() {
+ var sel = window.getSelection(), prim = this.cm.doc.sel.primary();
+ var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset);
+ var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset);
+ if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
+ cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&
+ cmp(maxPos(curAnchor, curFocus), prim.to()) == 0)
+ return;
+
+ var start = posToDOM(this.cm, prim.from());
+ var end = posToDOM(this.cm, prim.to());
+ if (!start && !end) return;
+
+ var view = this.cm.display.view;
+ var old = sel.rangeCount && sel.getRangeAt(0);
+ if (!start) {
+ start = {node: view[0].measure.map[2], offset: 0};
+ } else if (!end) { // FIXME dangerously hacky
+ var measure = view[view.length - 1].measure;
+ var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
+ end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
+ }
+
+ try { var rng = range(start.node, start.offset, end.offset, end.node); }
+ catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
+ if (rng) {
+ if (!gecko && this.cm.state.focused) {
+ sel.collapse(start.node, start.offset);
+ if (!rng.collapsed) sel.addRange(rng);
+ } else {
+ sel.removeAllRanges();
+ sel.addRange(rng);
+ }
+ if (old && sel.anchorNode == null) sel.addRange(old);
+ else if (gecko) this.startGracePeriod();
+ }
+ this.rememberSelection();
+ },
+
+ startGracePeriod: function() {
+ var input = this;
+ clearTimeout(this.gracePeriod);
+ this.gracePeriod = setTimeout(function() {
+ input.gracePeriod = false;
+ if (input.selectionChanged())
+ input.cm.operation(function() { input.cm.curOp.selectionChanged = true; });
+ }, 20);
+ },
+
+ showMultipleSelections: function(info) {
+ removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
+ removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
+ },
+
+ rememberSelection: function() {
+ var sel = window.getSelection();
+ this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
+ this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
+ },
+
+ selectionInEditor: function() {
+ var sel = window.getSelection();
+ if (!sel.rangeCount) return false;
+ var node = sel.getRangeAt(0).commonAncestorContainer;
+ return contains(this.div, node);
+ },
+
+ focus: function() {
+ if (this.cm.options.readOnly != "nocursor") this.div.focus();
+ },
+ blur: function() { this.div.blur(); },
+ getField: function() { return this.div; },
+
+ supportsTouch: function() { return true; },
+
+ receivedFocus: function() {
+ var input = this;
+ if (this.selectionInEditor())
+ this.pollSelection();
+ else
+ runInOp(this.cm, function() { input.cm.curOp.selectionChanged = true; });
+
+ function poll() {
+ if (input.cm.state.focused) {
+ input.pollSelection();
+ input.polling.set(input.cm.options.pollInterval, poll);
+ }
+ }
+ this.polling.set(this.cm.options.pollInterval, poll);
+ },
+
+ selectionChanged: function() {
+ var sel = window.getSelection();
+ return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
+ sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset;
+ },
+
+ pollSelection: function() {
+ if (!this.composing && !this.gracePeriod && this.selectionChanged()) {
+ var sel = window.getSelection(), cm = this.cm;
+ this.rememberSelection();
+ var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
+ var head = domToPos(cm, sel.focusNode, sel.focusOffset);
+ if (anchor && head) runInOp(cm, function() {
+ setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
+ if (anchor.bad || head.bad) cm.curOp.selectionChanged = true;
+ });
+ }
+ },
+
+ pollContent: function() {
+ var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
+ var from = sel.from(), to = sel.to();
+ if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false;
+
+ var fromIndex;
+ if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
+ var fromLine = lineNo(display.view[0].line);
+ var fromNode = display.view[0].node;
+ } else {
+ var fromLine = lineNo(display.view[fromIndex].line);
+ var fromNode = display.view[fromIndex - 1].node.nextSibling;
+ }
+ var toIndex = findViewIndex(cm, to.line);
+ if (toIndex == display.view.length - 1) {
+ var toLine = display.viewTo - 1;
+ var toNode = display.lineDiv.lastChild;
+ } else {
+ var toLine = lineNo(display.view[toIndex + 1].line) - 1;
+ var toNode = display.view[toIndex + 1].node.previousSibling;
+ }
+
+ var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
+ var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
+ while (newText.length > 1 && oldText.length > 1) {
+ if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
+ else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
+ else break;
+ }
+
+ var cutFront = 0, cutEnd = 0;
+ var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
+ while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
+ ++cutFront;
+ var newBot = lst(newText), oldBot = lst(oldText);
+ var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
+ oldBot.length - (oldText.length == 1 ? cutFront : 0));
+ while (cutEnd < maxCutEnd &&
+ newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
+ ++cutEnd;
+
+ newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd);
+ newText[0] = newText[0].slice(cutFront);
+
+ var chFrom = Pos(fromLine, cutFront);
+ var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
+ if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
+ replaceRange(cm.doc, newText, chFrom, chTo, "+input");
+ return true;
+ }
+ },
+
+ ensurePolled: function() {
+ this.forceCompositionEnd();
+ },
+ reset: function() {
+ this.forceCompositionEnd();
+ },
+ forceCompositionEnd: function() {
+ if (!this.composing || this.composing.handled) return;
+ this.applyComposition(this.composing);
+ this.composing.handled = true;
+ this.div.blur();
+ this.div.focus();
+ },
+ applyComposition: function(composing) {
+ if (this.cm.isReadOnly())
+ operation(this.cm, regChange)(this.cm)
+ else if (composing.data && composing.data != composing.startData)
+ operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel);
+ },
+
+ setUneditable: function(node) {
+ node.contentEditable = "false"
+ },
+
+ onKeyPress: function(e) {
+ e.preventDefault();
+ if (!this.cm.isReadOnly())
+ operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0);
+ },
+
+ readOnlyChanged: function(val) {
+ this.div.contentEditable = String(val != "nocursor")
+ },
+
+ onContextMenu: nothing,
+ resetPosition: nothing,
+
+ needsContentAttribute: true
+ }, ContentEditableInput.prototype);
+
+ function posToDOM(cm, pos) {
+ var view = findViewForLine(cm, pos.line);
+ if (!view || view.hidden) return null;
+ var line = getLine(cm.doc, pos.line);
+ var info = mapFromLineView(view, line, pos.line);
+
+ var order = getOrder(line), side = "left";
+ if (order) {
+ var partPos = getBidiPartAt(order, pos.ch);
+ side = partPos % 2 ? "right" : "left";
+ }
+ var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
+ result.offset = result.collapse == "right" ? result.end : result.start;
+ return result;
+ }
+
+ function badPos(pos, bad) { if (bad) pos.bad = true; return pos; }
+
+ function domToPos(cm, node, offset) {
+ var lineNode;
+ if (node == cm.display.lineDiv) {
+ lineNode = cm.display.lineDiv.childNodes[offset];
+ if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true);
+ node = null; offset = 0;
+ } else {
+ for (lineNode = node;; lineNode = lineNode.parentNode) {
+ if (!lineNode || lineNode == cm.display.lineDiv) return null;
+ if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break;
+ }
+ }
+ for (var i = 0; i < cm.display.view.length; i++) {
+ var lineView = cm.display.view[i];
+ if (lineView.node == lineNode)
+ return locateNodeInLineView(lineView, node, offset);
+ }
+ }
+
+ function locateNodeInLineView(lineView, node, offset) {
+ var wrapper = lineView.text.firstChild, bad = false;
+ if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true);
+ if (node == wrapper) {
+ bad = true;
+ node = wrapper.childNodes[offset];
+ offset = 0;
+ if (!node) {
+ var line = lineView.rest ? lst(lineView.rest) : lineView.line;
+ return badPos(Pos(lineNo(line), line.text.length), bad);
+ }
+ }
+
+ var textNode = node.nodeType == 3 ? node : null, topNode = node;
+ if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
+ textNode = node.firstChild;
+ if (offset) offset = textNode.nodeValue.length;
+ }
+ while (topNode.parentNode != wrapper) topNode = topNode.parentNode;
+ var measure = lineView.measure, maps = measure.maps;
+
+ function find(textNode, topNode, offset) {
+ for (var i = -1; i < (maps ? maps.length : 0); i++) {
+ var map = i < 0 ? measure.map : maps[i];
+ for (var j = 0; j < map.length; j += 3) {
+ var curNode = map[j + 2];
+ if (curNode == textNode || curNode == topNode) {
+ var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
+ var ch = map[j] + offset;
+ if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)];
+ return Pos(line, ch);
+ }
+ }
+ }
+ }
+ var found = find(textNode, topNode, offset);
+ if (found) return badPos(found, bad);
+
+ // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
+ for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
+ found = find(after, after.firstChild, 0);
+ if (found)
+ return badPos(Pos(found.line, found.ch - dist), bad);
+ else
+ dist += after.textContent.length;
+ }
+ for (var before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) {
+ found = find(before, before.firstChild, -1);
+ if (found)
+ return badPos(Pos(found.line, found.ch + dist), bad);
+ else
+ dist += after.textContent.length;
+ }
+ }
+
+ function domTextBetween(cm, from, to, fromLine, toLine) {
+ var text = "", closing = false, lineSep = cm.doc.lineSeparator();
+ function recognizeMarker(id) { return function(marker) { return marker.id == id; }; }
+ function walk(node) {
+ if (node.nodeType == 1) {
+ var cmText = node.getAttribute("cm-text");
+ if (cmText != null) {
+ if (cmText == "") cmText = node.textContent.replace(/\u200b/g, "");
+ text += cmText;
+ return;
+ }
+ var markerID = node.getAttribute("cm-marker"), range;
+ if (markerID) {
+ var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
+ if (found.length && (range = found[0].find()))
+ text += getBetween(cm.doc, range.from, range.to).join(lineSep);
+ return;
+ }
+ if (node.getAttribute("contenteditable") == "false") return;
+ for (var i = 0; i < node.childNodes.length; i++)
+ walk(node.childNodes[i]);
+ if (/^(pre|div|p)$/i.test(node.nodeName))
+ closing = true;
+ } else if (node.nodeType == 3) {
+ var val = node.nodeValue;
+ if (!val) return;
+ if (closing) {
+ text += lineSep;
+ closing = false;
+ }
+ text += val;
+ }
+ }
+ for (;;) {
+ walk(from);
+ if (from == to) break;
+ from = from.nextSibling;
+ }
+ return text;
+ }
+
+ CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};
+
+ // SELECTION / CURSOR
+
+ // Selection objects are immutable. A new one is created every time
+ // the selection changes. A selection is one or more non-overlapping
+ // (and non-touching) ranges, sorted, and an integer that indicates
+ // which one is the primary selection (the one that's scrolled into
+ // view, that getCursor returns, etc).
+ function Selection(ranges, primIndex) {
+ this.ranges = ranges;
+ this.primIndex = primIndex;
+ }
+
+ Selection.prototype = {
+ primary: function() { return this.ranges[this.primIndex]; },
+ equals: function(other) {
+ if (other == this) return true;
+ if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false;
+ for (var i = 0; i < this.ranges.length; i++) {
+ var here = this.ranges[i], there = other.ranges[i];
+ if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false;
+ }
+ return true;
+ },
+ deepCopy: function() {
+ for (var out = [], i = 0; i < this.ranges.length; i++)
+ out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head));
+ return new Selection(out, this.primIndex);
+ },
+ somethingSelected: function() {
+ for (var i = 0; i < this.ranges.length; i++)
+ if (!this.ranges[i].empty()) return true;
+ return false;
+ },
+ contains: function(pos, end) {
+ if (!end) end = pos;
+ for (var i = 0; i < this.ranges.length; i++) {
+ var range = this.ranges[i];
+ if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
+ return i;
+ }
+ return -1;
+ }
+ };
+
+ function Range(anchor, head) {
+ this.anchor = anchor; this.head = head;
+ }
+
+ Range.prototype = {
+ from: function() { return minPos(this.anchor, this.head); },
+ to: function() { return maxPos(this.anchor, this.head); },
+ empty: function() {
+ return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch;
+ }
+ };
+
+ // Take an unsorted, potentially overlapping set of ranges, and
+ // build a selection out of it. 'Consumes' ranges array (modifying
+ // it).
+ function normalizeSelection(ranges, primIndex) {
+ var prim = ranges[primIndex];
+ ranges.sort(function(a, b) { return cmp(a.from(), b.from()); });
+ primIndex = indexOf(ranges, prim);
+ for (var i = 1; i < ranges.length; i++) {
+ var cur = ranges[i], prev = ranges[i - 1];
+ if (cmp(prev.to(), cur.from()) >= 0) {
+ var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
+ var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
+ if (i <= primIndex) --primIndex;
+ ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
+ }
+ }
+ return new Selection(ranges, primIndex);
+ }
+
+ function simpleSelection(anchor, head) {
+ return new Selection([new Range(anchor, head || anchor)], 0);
+ }
+
+ // Most of the external API clips given positions to make sure they
+ // actually exist within the document.
+ function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));}
+ function clipPos(doc, pos) {
+ if (pos.line < doc.first) return Pos(doc.first, 0);
+ var last = doc.first + doc.size - 1;
+ if (pos.line > last) return Pos(last, getLine(doc, last).text.length);
+ return clipToLen(pos, getLine(doc, pos.line).text.length);
+ }
+ function clipToLen(pos, linelen) {
+ var ch = pos.ch;
+ if (ch == null || ch > linelen) return Pos(pos.line, linelen);
+ else if (ch < 0) return Pos(pos.line, 0);
+ else return pos;
+ }
+ function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;}
+ function clipPosArray(doc, array) {
+ for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]);
+ return out;
+ }
+
+ // SELECTION UPDATES
+
+ // The 'scroll' parameter given to many of these indicated whether
+ // the new cursor position should be scrolled into view after
+ // modifying the selection.
+
+ // If shift is held or the extend flag is set, extends a range to
+ // include a given position (and optionally a second position).
+ // Otherwise, simply returns the range between the given positions.
+ // Used for cursor motion and such.
+ function extendRange(doc, range, head, other) {
+ if (doc.cm && doc.cm.display.shift || doc.extend) {
+ var anchor = range.anchor;
+ if (other) {
+ var posBefore = cmp(head, anchor) < 0;
+ if (posBefore != (cmp(other, anchor) < 0)) {
+ anchor = head;
+ head = other;
+ } else if (posBefore != (cmp(head, other) < 0)) {
+ head = other;
+ }
+ }
+ return new Range(anchor, head);
+ } else {
+ return new Range(other || head, head);
+ }
+ }
+
+ // Extend the primary selection range, discard the rest.
+ function extendSelection(doc, head, other, options) {
+ setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options);
+ }
+
+ // Extend all selections (pos is an array of selections with length
+ // equal the number of selections)
+ function extendSelections(doc, heads, options) {
+ for (var out = [], i = 0; i < doc.sel.ranges.length; i++)
+ out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null);
+ var newSel = normalizeSelection(out, doc.sel.primIndex);
+ setSelection(doc, newSel, options);
+ }
+
+ // Updates a single range in the selection.
+ function replaceOneSelection(doc, i, range, options) {
+ var ranges = doc.sel.ranges.slice(0);
+ ranges[i] = range;
+ setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);
+ }
+
+ // Reset the selection to a single range.
+ function setSimpleSelection(doc, anchor, head, options) {
+ setSelection(doc, simpleSelection(anchor, head), options);
+ }
+
+ // Give beforeSelectionChange handlers a change to influence a
+ // selection update.
+ function filterSelectionChange(doc, sel, options) {
+ var obj = {
+ ranges: sel.ranges,
+ update: function(ranges) {
+ this.ranges = [];
+ for (var i = 0; i < ranges.length; i++)
+ this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
+ clipPos(doc, ranges[i].head));
+ },
+ origin: options && options.origin
+ };
+ signal(doc, "beforeSelectionChange", doc, obj);
+ if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj);
+ if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1);
+ else return sel;
+ }
+
+ function setSelectionReplaceHistory(doc, sel, options) {
+ var done = doc.history.done, last = lst(done);
+ if (last && last.ranges) {
+ done[done.length - 1] = sel;
+ setSelectionNoUndo(doc, sel, options);
+ } else {
+ setSelection(doc, sel, options);
+ }
+ }
+
+ // Set a new selection.
+ function setSelection(doc, sel, options) {
+ setSelectionNoUndo(doc, sel, options);
+ addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
+ }
+
+ function setSelectionNoUndo(doc, sel, options) {
+ if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
+ sel = filterSelectionChange(doc, sel, options);
+
+ var bias = options && options.bias ||
+ (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
+ setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
+
+ if (!(options && options.scroll === false) && doc.cm)
+ ensureCursorVisible(doc.cm);
+ }
+
+ function setSelectionInner(doc, sel) {
+ if (sel.equals(doc.sel)) return;
+
+ doc.sel = sel;
+
+ if (doc.cm) {
+ doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;
+ signalCursorActivity(doc.cm);
+ }
+ signalLater(doc, "cursorActivity", doc);
+ }
+
+ // Verify that the selection does not partially select any atomic
+ // marked ranges.
+ function reCheckSelection(doc) {
+ setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll);
+ }
+
+ // Return a selection that does not partially select any atomic
+ // ranges.
+ function skipAtomicInSelection(doc, sel, bias, mayClear) {
+ var out;
+ for (var i = 0; i < sel.ranges.length; i++) {
+ var range = sel.ranges[i];
+ var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
+ var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
+ var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);
+ if (out || newAnchor != range.anchor || newHead != range.head) {
+ if (!out) out = sel.ranges.slice(0, i);
+ out[i] = new Range(newAnchor, newHead);
+ }
+ }
+ return out ? normalizeSelection(out, sel.primIndex) : sel;
+ }
+
+ function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
+ var line = getLine(doc, pos.line);
+ if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
+ var sp = line.markedSpans[i], m = sp.marker;
+ if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
+ (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
+ if (mayClear) {
+ signal(m, "beforeCursorEnter");
+ if (m.explicitlyCleared) {
+ if (!line.markedSpans) break;
+ else {--i; continue;}
+ }
+ }
+ if (!m.atomic) continue;
+
+ if (oldPos) {
+ var near = m.find(dir < 0 ? 1 : -1), diff;
+ if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft)
+ near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null);
+ if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
+ return skipAtomicInner(doc, near, pos, dir, mayClear);
+ }
+
+ var far = m.find(dir < 0 ? -1 : 1);
+ if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight)
+ far = movePos(doc, far, dir, far.line == pos.line ? line : null);
+ return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null;
+ }
+ }
+ return pos;
+ }
+
+ // Ensure a given position is not inside an atomic range.
+ function skipAtomic(doc, pos, oldPos, bias, mayClear) {
+ var dir = bias || 1;
+ var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
+ (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
+ skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
+ (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
+ if (!found) {
+ doc.cantEdit = true;
+ return Pos(doc.first, 0);
+ }
+ return found;
+ }
+
+ function movePos(doc, pos, dir, line) {
+ if (dir < 0 && pos.ch == 0) {
+ if (pos.line > doc.first) return clipPos(doc, Pos(pos.line - 1));
+ else return null;
+ } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
+ if (pos.line < doc.first + doc.size - 1) return Pos(pos.line + 1, 0);
+ else return null;
+ } else {
+ return new Pos(pos.line, pos.ch + dir);
+ }
+ }
+
+ // SELECTION DRAWING
+
+ function updateSelection(cm) {
+ cm.display.input.showSelection(cm.display.input.prepareSelection());
+ }
+
+ function prepareSelection(cm, primary) {
+ var doc = cm.doc, result = {};
+ var curFragment = result.cursors = document.createDocumentFragment();
+ var selFragment = result.selection = document.createDocumentFragment();
+
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ if (primary === false && i == doc.sel.primIndex) continue;
+ var range = doc.sel.ranges[i];
+ if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) continue;
+ var collapsed = range.empty();
+ if (collapsed || cm.options.showCursorWhenSelecting)
+ drawSelectionCursor(cm, range.head, curFragment);
+ if (!collapsed)
+ drawSelectionRange(cm, range, selFragment);
+ }
+ return result;
+ }
+
+ // Draws a cursor for the given range
+ function drawSelectionCursor(cm, head, output) {
+ var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);
+
+ var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
+ cursor.style.left = pos.left + "px";
+ cursor.style.top = pos.top + "px";
+ cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
+
+ if (pos.other) {
+ // Secondary cursor, shown when on a 'jump' in bi-directional text
+ var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
+ otherCursor.style.display = "";
+ otherCursor.style.left = pos.other.left + "px";
+ otherCursor.style.top = pos.other.top + "px";
+ otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
+ }
+ }
+
+ // Draws the given range as a highlighted selection
+ function drawSelectionRange(cm, range, output) {
+ var display = cm.display, doc = cm.doc;
+ var fragment = document.createDocumentFragment();
+ var padding = paddingH(cm.display), leftSide = padding.left;
+ var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
+
+ function add(left, top, width, bottom) {
+ if (top < 0) top = 0;
+ top = Math.round(top);
+ bottom = Math.round(bottom);
+ fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
+ "px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) +
+ "px; height: " + (bottom - top) + "px"));
+ }
+
+ function drawForLine(line, fromArg, toArg) {
+ var lineObj = getLine(doc, line);
+ var lineLen = lineObj.text.length;
+ var start, end;
+ function coords(ch, bias) {
+ return charCoords(cm, Pos(line, ch), "div", lineObj, bias);
+ }
+
+ iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) {
+ var leftPos = coords(from, "left"), rightPos, left, right;
+ if (from == to) {
+ rightPos = leftPos;
+ left = right = leftPos.left;
+ } else {
+ rightPos = coords(to - 1, "right");
+ if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }
+ left = leftPos.left;
+ right = rightPos.right;
+ }
+ if (fromArg == null && from == 0) left = leftSide;
+ if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
+ add(left, leftPos.top, null, leftPos.bottom);
+ left = leftSide;
+ if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);
+ }
+ if (toArg == null && to == lineLen) right = rightSide;
+ if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
+ start = leftPos;
+ if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
+ end = rightPos;
+ if (left < leftSide + 1) left = leftSide;
+ add(left, rightPos.top, right - left, rightPos.bottom);
+ });
+ return {start: start, end: end};
+ }
+
+ var sFrom = range.from(), sTo = range.to();
+ if (sFrom.line == sTo.line) {
+ drawForLine(sFrom.line, sFrom.ch, sTo.ch);
+ } else {
+ var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
+ var singleVLine = visualLine(fromLine) == visualLine(toLine);
+ var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
+ var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
+ if (singleVLine) {
+ if (leftEnd.top < rightStart.top - 2) {
+ add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
+ add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
+ } else {
+ add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
+ }
+ }
+ if (leftEnd.bottom < rightStart.top)
+ add(leftSide, leftEnd.bottom, null, rightStart.top);
+ }
+
+ output.appendChild(fragment);
+ }
+
+ // Cursor-blinking
+ function restartBlink(cm) {
+ if (!cm.state.focused) return;
+ var display = cm.display;
+ clearInterval(display.blinker);
+ var on = true;
+ display.cursorDiv.style.visibility = "";
+ if (cm.options.cursorBlinkRate > 0)
+ display.blinker = setInterval(function() {
+ display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
+ }, cm.options.cursorBlinkRate);
+ else if (cm.options.cursorBlinkRate < 0)
+ display.cursorDiv.style.visibility = "hidden";
+ }
+
+ // HIGHLIGHT WORKER
+
+ function startWorker(cm, time) {
+ if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
+ cm.state.highlight.set(time, bind(highlightWorker, cm));
+ }
+
+ function highlightWorker(cm) {
+ var doc = cm.doc;
+ if (doc.frontier < doc.first) doc.frontier = doc.first;
+ if (doc.frontier >= cm.display.viewTo) return;
+ var end = +new Date + cm.options.workTime;
+ var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));
+ var changedLines = [];
+
+ doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) {
+ if (doc.frontier >= cm.display.viewFrom) { // Visible
+ var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength;
+ var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true);
+ line.styles = highlighted.styles;
+ var oldCls = line.styleClasses, newCls = highlighted.classes;
+ if (newCls) line.styleClasses = newCls;
+ else if (oldCls) line.styleClasses = null;
+ var ischange = !oldStyles || oldStyles.length != line.styles.length ||
+ oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
+ for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i];
+ if (ischange) changedLines.push(doc.frontier);
+ line.stateAfter = tooLong ? state : copyState(doc.mode, state);
+ } else {
+ if (line.text.length <= cm.options.maxHighlightLength)
+ processLine(cm, line.text, state);
+ line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;
+ }
+ ++doc.frontier;
+ if (+new Date > end) {
+ startWorker(cm, cm.options.workDelay);
+ return true;
+ }
+ });
+ if (changedLines.length) runInOp(cm, function() {
+ for (var i = 0; i < changedLines.length; i++)
+ regLineChange(cm, changedLines[i], "text");
+ });
+ }
+
+ // Finds the line to start with when starting a parse. Tries to
+ // find a line with a stateAfter, so that it can start with a
+ // valid state. If that fails, it returns the line with the
+ // smallest indentation, which tends to need the least context to
+ // parse correctly.
+ function findStartLine(cm, n, precise) {
+ var minindent, minline, doc = cm.doc;
+ var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
+ for (var search = n; search > lim; --search) {
+ if (search <= doc.first) return doc.first;
+ var line = getLine(doc, search - 1);
+ if (line.stateAfter && (!precise || search <= doc.frontier)) return search;
+ var indented = countColumn(line.text, null, cm.options.tabSize);
+ if (minline == null || minindent > indented) {
+ minline = search - 1;
+ minindent = indented;
+ }
+ }
+ return minline;
+ }
+
+ function getStateBefore(cm, n, precise) {
+ var doc = cm.doc, display = cm.display;
+ if (!doc.mode.startState) return true;
+ var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter;
+ if (!state) state = startState(doc.mode);
+ else state = copyState(doc.mode, state);
+ doc.iter(pos, n, function(line) {
+ processLine(cm, line.text, state);
+ var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo;
+ line.stateAfter = save ? copyState(doc.mode, state) : null;
+ ++pos;
+ });
+ if (precise) doc.frontier = pos;
+ return state;
+ }
+
+ // POSITION MEASUREMENT
+
+ function paddingTop(display) {return display.lineSpace.offsetTop;}
+ function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;}
+ function paddingH(display) {
+ if (display.cachedPaddingH) return display.cachedPaddingH;
+ var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
+ var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
+ var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
+ if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data;
+ return data;
+ }
+
+ function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth; }
+ function displayWidth(cm) {
+ return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth;
+ }
+ function displayHeight(cm) {
+ return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight;
+ }
+
+ // Ensure the lineView.wrapping.heights array is populated. This is
+ // an array of bottom offsets for the lines that make up a drawn
+ // line. When lineWrapping is on, there might be more than one
+ // height.
+ function ensureLineHeights(cm, lineView, rect) {
+ var wrapping = cm.options.lineWrapping;
+ var curWidth = wrapping && displayWidth(cm);
+ if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
+ var heights = lineView.measure.heights = [];
+ if (wrapping) {
+ lineView.measure.width = curWidth;
+ var rects = lineView.text.firstChild.getClientRects();
+ for (var i = 0; i < rects.length - 1; i++) {
+ var cur = rects[i], next = rects[i + 1];
+ if (Math.abs(cur.bottom - next.bottom) > 2)
+ heights.push((cur.bottom + next.top) / 2 - rect.top);
+ }
+ }
+ heights.push(rect.bottom - rect.top);
+ }
+ }
+
+ // Find a line map (mapping character offsets to text nodes) and a
+ // measurement cache for the given line number. (A line view might
+ // contain multiple lines when collapsed ranges are present.)
+ function mapFromLineView(lineView, line, lineN) {
+ if (lineView.line == line)
+ return {map: lineView.measure.map, cache: lineView.measure.cache};
+ for (var i = 0; i < lineView.rest.length; i++)
+ if (lineView.rest[i] == line)
+ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]};
+ for (var i = 0; i < lineView.rest.length; i++)
+ if (lineNo(lineView.rest[i]) > lineN)
+ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true};
+ }
+
+ // Render a line into the hidden node display.externalMeasured. Used
+ // when measurement is needed for a line that's not in the viewport.
+ function updateExternalMeasurement(cm, line) {
+ line = visualLine(line);
+ var lineN = lineNo(line);
+ var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
+ view.lineN = lineN;
+ var built = view.built = buildLineContent(cm, view);
+ view.text = built.pre;
+ removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
+ return view;
+ }
+
+ // Get a {top, bottom, left, right} box (in line-local coordinates)
+ // for a given character.
+ function measureChar(cm, line, ch, bias) {
+ return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias);
+ }
+
+ // Find a line view that corresponds to the given line number.
+ function findViewForLine(cm, lineN) {
+ if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
+ return cm.display.view[findViewIndex(cm, lineN)];
+ var ext = cm.display.externalMeasured;
+ if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
+ return ext;
+ }
+
+ // Measurement can be split in two steps, the set-up work that
+ // applies to the whole line, and the measurement of the actual
+ // character. Functions like coordsChar, that need to do a lot of
+ // measurements in a row, can thus ensure that the set-up work is
+ // only done once.
+ function prepareMeasureForLine(cm, line) {
+ var lineN = lineNo(line);
+ var view = findViewForLine(cm, lineN);
+ if (view && !view.text) {
+ view = null;
+ } else if (view && view.changes) {
+ updateLineForChanges(cm, view, lineN, getDimensions(cm));
+ cm.curOp.forceUpdate = true;
+ }
+ if (!view)
+ view = updateExternalMeasurement(cm, line);
+
+ var info = mapFromLineView(view, line, lineN);
+ return {
+ line: line, view: view, rect: null,
+ map: info.map, cache: info.cache, before: info.before,
+ hasHeights: false
+ };
+ }
+
+ // Given a prepared measurement object, measures the position of an
+ // actual character (or fetches it from the cache).
+ function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
+ if (prepared.before) ch = -1;
+ var key = ch + (bias || ""), found;
+ if (prepared.cache.hasOwnProperty(key)) {
+ found = prepared.cache[key];
+ } else {
+ if (!prepared.rect)
+ prepared.rect = prepared.view.text.getBoundingClientRect();
+ if (!prepared.hasHeights) {
+ ensureLineHeights(cm, prepared.view, prepared.rect);
+ prepared.hasHeights = true;
+ }
+ found = measureCharInner(cm, prepared, ch, bias);
+ if (!found.bogus) prepared.cache[key] = found;
+ }
+ return {left: found.left, right: found.right,
+ top: varHeight ? found.rtop : found.top,
+ bottom: varHeight ? found.rbottom : found.bottom};
+ }
+
+ var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
+
+ function nodeAndOffsetInLineMap(map, ch, bias) {
+ var node, start, end, collapse;
+ // First, search the line map for the text node corresponding to,
+ // or closest to, the target character.
+ for (var i = 0; i < map.length; i += 3) {
+ var mStart = map[i], mEnd = map[i + 1];
+ if (ch < mStart) {
+ start = 0; end = 1;
+ collapse = "left";
+ } else if (ch < mEnd) {
+ start = ch - mStart;
+ end = start + 1;
+ } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
+ end = mEnd - mStart;
+ start = end - 1;
+ if (ch >= mEnd) collapse = "right";
+ }
+ if (start != null) {
+ node = map[i + 2];
+ if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
+ collapse = bias;
+ if (bias == "left" && start == 0)
+ while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
+ node = map[(i -= 3) + 2];
+ collapse = "left";
+ }
+ if (bias == "right" && start == mEnd - mStart)
+ while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
+ node = map[(i += 3) + 2];
+ collapse = "right";
+ }
+ break;
+ }
+ }
+ return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd};
+ }
+
+ function measureCharInner(cm, prepared, ch, bias) {
+ var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
+ var node = place.node, start = place.start, end = place.end, collapse = place.collapse;
+
+ var rect;
+ if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
+ for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned
+ while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start;
+ while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end;
+ if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) {
+ rect = node.parentNode.getBoundingClientRect();
+ } else if (ie && cm.options.lineWrapping) {
+ var rects = range(node, start, end).getClientRects();
+ if (rects.length)
+ rect = rects[bias == "right" ? rects.length - 1 : 0];
+ else
+ rect = nullRect;
+ } else {
+ rect = range(node, start, end).getBoundingClientRect() || nullRect;
+ }
+ if (rect.left || rect.right || start == 0) break;
+ end = start;
+ start = start - 1;
+ collapse = "right";
+ }
+ if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect);
+ } else { // If it is a widget, simply get the box for the whole widget.
+ if (start > 0) collapse = bias = "right";
+ var rects;
+ if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
+ rect = rects[bias == "right" ? rects.length - 1 : 0];
+ else
+ rect = node.getBoundingClientRect();
+ }
+ if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
+ var rSpan = node.parentNode.getClientRects()[0];
+ if (rSpan)
+ rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom};
+ else
+ rect = nullRect;
+ }
+
+ var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
+ var mid = (rtop + rbot) / 2;
+ var heights = prepared.view.measure.heights;
+ for (var i = 0; i < heights.length - 1; i++)
+ if (mid < heights[i]) break;
+ var top = i ? heights[i - 1] : 0, bot = heights[i];
+ var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
+ right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
+ top: top, bottom: bot};
+ if (!rect.left && !rect.right) result.bogus = true;
+ if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
+
+ return result;
+ }
+
+ // Work around problem with bounding client rects on ranges being
+ // returned incorrectly when zoomed on IE10 and below.
+ function maybeUpdateRectForZooming(measure, rect) {
+ if (!window.screen || screen.logicalXDPI == null ||
+ screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
+ return rect;
+ var scaleX = screen.logicalXDPI / screen.deviceXDPI;
+ var scaleY = screen.logicalYDPI / screen.deviceYDPI;
+ return {left: rect.left * scaleX, right: rect.right * scaleX,
+ top: rect.top * scaleY, bottom: rect.bottom * scaleY};
+ }
+
+ function clearLineMeasurementCacheFor(lineView) {
+ if (lineView.measure) {
+ lineView.measure.cache = {};
+ lineView.measure.heights = null;
+ if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
+ lineView.measure.caches[i] = {};
+ }
+ }
+
+ function clearLineMeasurementCache(cm) {
+ cm.display.externalMeasure = null;
+ removeChildren(cm.display.lineMeasure);
+ for (var i = 0; i < cm.display.view.length; i++)
+ clearLineMeasurementCacheFor(cm.display.view[i]);
+ }
+
+ function clearCaches(cm) {
+ clearLineMeasurementCache(cm);
+ cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
+ if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;
+ cm.display.lineNumChars = null;
+ }
+
+ function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; }
+ function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; }
+
+ // Converts a {top, bottom, left, right} box from line-local
+ // coordinates into another coordinate system. Context may be one of
+ // "line", "div" (display.lineDiv), "local"/null (editor), "window",
+ // or "page".
+ function intoCoordSystem(cm, lineObj, rect, context) {
+ if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
+ var size = widgetHeight(lineObj.widgets[i]);
+ rect.top += size; rect.bottom += size;
+ }
+ if (context == "line") return rect;
+ if (!context) context = "local";
+ var yOff = heightAtLine(lineObj);
+ if (context == "local") yOff += paddingTop(cm.display);
+ else yOff -= cm.display.viewOffset;
+ if (context == "page" || context == "window") {
+ var lOff = cm.display.lineSpace.getBoundingClientRect();
+ yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
+ var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
+ rect.left += xOff; rect.right += xOff;
+ }
+ rect.top += yOff; rect.bottom += yOff;
+ return rect;
+ }
+
+ // Coverts a box from "div" coords to another coordinate system.
+ // Context may be "window", "page", "div", or "local"/null.
+ function fromCoordSystem(cm, coords, context) {
+ if (context == "div") return coords;
+ var left = coords.left, top = coords.top;
+ // First move into "page" coordinate system
+ if (context == "page") {
+ left -= pageScrollX();
+ top -= pageScrollY();
+ } else if (context == "local" || !context) {
+ var localBox = cm.display.sizer.getBoundingClientRect();
+ left += localBox.left;
+ top += localBox.top;
+ }
+
+ var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
+ return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top};
+ }
+
+ function charCoords(cm, pos, context, lineObj, bias) {
+ if (!lineObj) lineObj = getLine(cm.doc, pos.line);
+ return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context);
+ }
+
+ // Returns a box for a given cursor position, which may have an
+ // 'other' property containing the position of the secondary cursor
+ // on a bidi boundary.
+ function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
+ lineObj = lineObj || getLine(cm.doc, pos.line);
+ if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj);
+ function get(ch, right) {
+ var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
+ if (right) m.left = m.right; else m.right = m.left;
+ return intoCoordSystem(cm, lineObj, m, context);
+ }
+ function getBidi(ch, partPos) {
+ var part = order[partPos], right = part.level % 2;
+ if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {
+ part = order[--partPos];
+ ch = bidiRight(part) - (part.level % 2 ? 0 : 1);
+ right = true;
+ } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {
+ part = order[++partPos];
+ ch = bidiLeft(part) - part.level % 2;
+ right = false;
+ }
+ if (right && ch == part.to && ch > part.from) return get(ch - 1);
+ return get(ch, right);
+ }
+ var order = getOrder(lineObj), ch = pos.ch;
+ if (!order) return get(ch);
+ var partPos = getBidiPartAt(order, ch);
+ var val = getBidi(ch, partPos);
+ if (bidiOther != null) val.other = getBidi(ch, bidiOther);
+ return val;
+ }
+
+ // Used to cheaply estimate the coordinates for a position. Used for
+ // intermediate scroll updates.
+ function estimateCoords(cm, pos) {
+ var left = 0, pos = clipPos(cm.doc, pos);
+ if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch;
+ var lineObj = getLine(cm.doc, pos.line);
+ var top = heightAtLine(lineObj) + paddingTop(cm.display);
+ return {left: left, right: left, top: top, bottom: top + lineObj.height};
+ }
+
+ // Positions returned by coordsChar contain some extra information.
+ // xRel is the relative x position of the input coordinates compared
+ // to the found position (so xRel > 0 means the coordinates are to
+ // the right of the character position, for example). When outside
+ // is true, that means the coordinates lie outside the line's
+ // vertical range.
+ function PosWithInfo(line, ch, outside, xRel) {
+ var pos = Pos(line, ch);
+ pos.xRel = xRel;
+ if (outside) pos.outside = true;
+ return pos;
+ }
+
+ // Compute the character position closest to the given coordinates.
+ // Input must be lineSpace-local ("div" coordinate system).
+ function coordsChar(cm, x, y) {
+ var doc = cm.doc;
+ y += cm.display.viewOffset;
+ if (y < 0) return PosWithInfo(doc.first, 0, true, -1);
+ var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
+ if (lineN > last)
+ return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1);
+ if (x < 0) x = 0;
+
+ var lineObj = getLine(doc, lineN);
+ for (;;) {
+ var found = coordsCharInner(cm, lineObj, lineN, x, y);
+ var merged = collapsedSpanAtEnd(lineObj);
+ var mergedPos = merged && merged.find(0, true);
+ if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
+ lineN = lineNo(lineObj = mergedPos.to.line);
+ else
+ return found;
+ }
+ }
+
+ function coordsCharInner(cm, lineObj, lineNo, x, y) {
+ var innerOff = y - heightAtLine(lineObj);
+ var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth;
+ var preparedMeasure = prepareMeasureForLine(cm, lineObj);
+
+ function getX(ch) {
+ var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure);
+ wrongLine = true;
+ if (innerOff > sp.bottom) return sp.left - adjust;
+ else if (innerOff < sp.top) return sp.left + adjust;
+ else wrongLine = false;
+ return sp.left;
+ }
+
+ var bidi = getOrder(lineObj), dist = lineObj.text.length;
+ var from = lineLeft(lineObj), to = lineRight(lineObj);
+ var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine;
+
+ if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);
+ // Do a binary search between these bounds.
+ for (;;) {
+ if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
+ var ch = x < fromX || x - fromX <= toX - x ? from : to;
+ var xDiff = x - (ch == from ? fromX : toX);
+ while (isExtendingChar(lineObj.text.charAt(ch))) ++ch;
+ var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside,
+ xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0);
+ return pos;
+ }
+ var step = Math.ceil(dist / 2), middle = from + step;
+ if (bidi) {
+ middle = from;
+ for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);
+ }
+ var middleX = getX(middle);
+ if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;}
+ else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;}
+ }
+ }
+
+ var measureText;
+ // Compute the default text height.
+ function textHeight(display) {
+ if (display.cachedTextHeight != null) return display.cachedTextHeight;
+ if (measureText == null) {
+ measureText = elt("pre");
+ // Measure a bunch of lines, for browsers that compute
+ // fractional heights.
+ for (var i = 0; i < 49; ++i) {
+ measureText.appendChild(document.createTextNode("x"));
+ measureText.appendChild(elt("br"));
+ }
+ measureText.appendChild(document.createTextNode("x"));
+ }
+ removeChildrenAndAdd(display.measure, measureText);
+ var height = measureText.offsetHeight / 50;
+ if (height > 3) display.cachedTextHeight = height;
+ removeChildren(display.measure);
+ return height || 1;
+ }
+
+ // Compute the default character width.
+ function charWidth(display) {
+ if (display.cachedCharWidth != null) return display.cachedCharWidth;
+ var anchor = elt("span", "xxxxxxxxxx");
+ var pre = elt("pre", [anchor]);
+ removeChildrenAndAdd(display.measure, pre);
+ var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
+ if (width > 2) display.cachedCharWidth = width;
+ return width || 10;
+ }
+
+ // OPERATIONS
+
+ // Operations are used to wrap a series of changes to the editor
+ // state in such a way that each change won't have to update the
+ // cursor and display (which would be awkward, slow, and
+ // error-prone). Instead, display updates are batched and then all
+ // combined and executed at once.
+
+ var operationGroup = null;
+
+ var nextOpId = 0;
+ // Start a new operation.
+ function startOperation(cm) {
+ cm.curOp = {
+ cm: cm,
+ viewChanged: false, // Flag that indicates that lines might need to be redrawn
+ startHeight: cm.doc.height, // Used to detect need to update scrollbar
+ forceUpdate: false, // Used to force a redraw
+ updateInput: null, // Whether to reset the input textarea
+ typing: false, // Whether this reset should be careful to leave existing text (for compositing)
+ changeObjs: null, // Accumulated changes, for firing change events
+ cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
+ cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
+ selectionChanged: false, // Whether the selection needs to be redrawn
+ updateMaxLine: false, // Set when the widest line needs to be determined anew
+ scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
+ scrollToPos: null, // Used to scroll to a specific position
+ focus: false,
+ id: ++nextOpId // Unique ID
+ };
+ if (operationGroup) {
+ operationGroup.ops.push(cm.curOp);
+ } else {
+ cm.curOp.ownsGroup = operationGroup = {
+ ops: [cm.curOp],
+ delayedCallbacks: []
+ };
+ }
+ }
+
+ function fireCallbacksForOps(group) {
+ // Calls delayed callbacks and cursorActivity handlers until no
+ // new ones appear
+ var callbacks = group.delayedCallbacks, i = 0;
+ do {
+ for (; i < callbacks.length; i++)
+ callbacks[i].call(null);
+ for (var j = 0; j < group.ops.length; j++) {
+ var op = group.ops[j];
+ if (op.cursorActivityHandlers)
+ while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
+ op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm);
+ }
+ } while (i < callbacks.length);
+ }
+
+ // Finish an operation, updating the display and signalling delayed events
+ function endOperation(cm) {
+ var op = cm.curOp, group = op.ownsGroup;
+ if (!group) return;
+
+ try { fireCallbacksForOps(group); }
+ finally {
+ operationGroup = null;
+ for (var i = 0; i < group.ops.length; i++)
+ group.ops[i].cm.curOp = null;
+ endOperations(group);
+ }
+ }
+
+ // The DOM updates done when an operation finishes are batched so
+ // that the minimum number of relayouts are required.
+ function endOperations(group) {
+ var ops = group.ops;
+ for (var i = 0; i < ops.length; i++) // Read DOM
+ endOperation_R1(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
+ endOperation_W1(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Read DOM
+ endOperation_R2(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
+ endOperation_W2(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Read DOM
+ endOperation_finish(ops[i]);
+ }
+
+ function endOperation_R1(op) {
+ var cm = op.cm, display = cm.display;
+ maybeClipScrollbars(cm);
+ if (op.updateMaxLine) findMaxLine(cm);
+
+ op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
+ op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
+ op.scrollToPos.to.line >= display.viewTo) ||
+ display.maxLineChanged && cm.options.lineWrapping;
+ op.update = op.mustUpdate &&
+ new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
+ }
+
+ function endOperation_W1(op) {
+ op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
+ }
+
+ function endOperation_R2(op) {
+ var cm = op.cm, display = cm.display;
+ if (op.updatedDisplay) updateHeightsInViewport(cm);
+
+ op.barMeasure = measureForScrollbars(cm);
+
+ // If the max line changed since it was last measured, measure it,
+ // and ensure the document's width matches it.
+ // updateDisplay_W2 will use these properties to do the actual resizing
+ if (display.maxLineChanged && !cm.options.lineWrapping) {
+ op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
+ cm.display.sizerWidth = op.adjustWidthTo;
+ op.barMeasure.scrollWidth =
+ Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
+ op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
+ }
+
+ if (op.updatedDisplay || op.selectionChanged)
+ op.preparedSelection = display.input.prepareSelection(op.focus);
+ }
+
+ function endOperation_W2(op) {
+ var cm = op.cm;
+
+ if (op.adjustWidthTo != null) {
+ cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
+ if (op.maxScrollLeft < cm.doc.scrollLeft)
+ setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true);
+ cm.display.maxLineChanged = false;
+ }
+
+ var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus())
+ if (op.preparedSelection)
+ cm.display.input.showSelection(op.preparedSelection, takeFocus);
+ if (op.updatedDisplay || op.startHeight != cm.doc.height)
+ updateScrollbars(cm, op.barMeasure);
+ if (op.updatedDisplay)
+ setDocumentHeight(cm, op.barMeasure);
+
+ if (op.selectionChanged) restartBlink(cm);
+
+ if (cm.state.focused && op.updateInput)
+ cm.display.input.reset(op.typing);
+ if (takeFocus) ensureFocus(op.cm);
+ }
+
+ function endOperation_finish(op) {
+ var cm = op.cm, display = cm.display, doc = cm.doc;
+
+ if (op.updatedDisplay) postUpdateDisplay(cm, op.update);
+
+ // Abort mouse wheel delta measurement, when scrolling explicitly
+ if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
+ display.wheelStartX = display.wheelStartY = null;
+
+ // Propagate the scroll position to the actual DOM scroller
+ if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
+ doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop));
+ display.scrollbars.setScrollTop(doc.scrollTop);
+ display.scroller.scrollTop = doc.scrollTop;
+ }
+ if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
+ doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft));
+ display.scrollbars.setScrollLeft(doc.scrollLeft);
+ display.scroller.scrollLeft = doc.scrollLeft;
+ alignHorizontally(cm);
+ }
+ // If we need to scroll a specific position into view, do so.
+ if (op.scrollToPos) {
+ var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
+ clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
+ if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords);
+ }
+
+ // Fire events for markers that are hidden/unidden by editing or
+ // undoing
+ var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
+ if (hidden) for (var i = 0; i < hidden.length; ++i)
+ if (!hidden[i].lines.length) signal(hidden[i], "hide");
+ if (unhidden) for (var i = 0; i < unhidden.length; ++i)
+ if (unhidden[i].lines.length) signal(unhidden[i], "unhide");
+
+ if (display.wrapper.offsetHeight)
+ doc.scrollTop = cm.display.scroller.scrollTop;
+
+ // Fire change events, and delayed event handlers
+ if (op.changeObjs)
+ signal(cm, "changes", cm, op.changeObjs);
+ if (op.update)
+ op.update.finish();
+ }
+
+ // Run the given function in an operation
+ function runInOp(cm, f) {
+ if (cm.curOp) return f();
+ startOperation(cm);
+ try { return f(); }
+ finally { endOperation(cm); }
+ }
+ // Wraps a function in an operation. Returns the wrapped function.
+ function operation(cm, f) {
+ return function() {
+ if (cm.curOp) return f.apply(cm, arguments);
+ startOperation(cm);
+ try { return f.apply(cm, arguments); }
+ finally { endOperation(cm); }
+ };
+ }
+ // Used to add methods to editor and doc instances, wrapping them in
+ // operations.
+ function methodOp(f) {
+ return function() {
+ if (this.curOp) return f.apply(this, arguments);
+ startOperation(this);
+ try { return f.apply(this, arguments); }
+ finally { endOperation(this); }
+ };
+ }
+ function docMethodOp(f) {
+ return function() {
+ var cm = this.cm;
+ if (!cm || cm.curOp) return f.apply(this, arguments);
+ startOperation(cm);
+ try { return f.apply(this, arguments); }
+ finally { endOperation(cm); }
+ };
+ }
+
+ // VIEW TRACKING
+
+ // These objects are used to represent the visible (currently drawn)
+ // part of the document. A LineView may correspond to multiple
+ // logical lines, if those are connected by collapsed ranges.
+ function LineView(doc, line, lineN) {
+ // The starting line
+ this.line = line;
+ // Continuing lines, if any
+ this.rest = visualLineContinued(line);
+ // Number of logical lines in this visual line
+ this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
+ this.node = this.text = null;
+ this.hidden = lineIsHidden(doc, line);
+ }
+
+ // Create a range of LineView objects for the given lines.
+ function buildViewArray(cm, from, to) {
+ var array = [], nextPos;
+ for (var pos = from; pos < to; pos = nextPos) {
+ var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
+ nextPos = pos + view.size;
+ array.push(view);
+ }
+ return array;
+ }
+
+ // Updates the display.view data structure for a given change to the
+ // document. From and to are in pre-change coordinates. Lendiff is
+ // the amount of lines added or subtracted by the change. This is
+ // used for changes that span multiple lines, or change the way
+ // lines are divided into visual lines. regLineChange (below)
+ // registers single-line changes.
+ function regChange(cm, from, to, lendiff) {
+ if (from == null) from = cm.doc.first;
+ if (to == null) to = cm.doc.first + cm.doc.size;
+ if (!lendiff) lendiff = 0;
+
+ var display = cm.display;
+ if (lendiff && to < display.viewTo &&
+ (display.updateLineNumbers == null || display.updateLineNumbers > from))
+ display.updateLineNumbers = from;
+
+ cm.curOp.viewChanged = true;
+
+ if (from >= display.viewTo) { // Change after
+ if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
+ resetView(cm);
+ } else if (to <= display.viewFrom) { // Change before
+ if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
+ resetView(cm);
+ } else {
+ display.viewFrom += lendiff;
+ display.viewTo += lendiff;
+ }
+ } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
+ resetView(cm);
+ } else if (from <= display.viewFrom) { // Top overlap
+ var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
+ if (cut) {
+ display.view = display.view.slice(cut.index);
+ display.viewFrom = cut.lineN;
+ display.viewTo += lendiff;
+ } else {
+ resetView(cm);
+ }
+ } else if (to >= display.viewTo) { // Bottom overlap
+ var cut = viewCuttingPoint(cm, from, from, -1);
+ if (cut) {
+ display.view = display.view.slice(0, cut.index);
+ display.viewTo = cut.lineN;
+ } else {
+ resetView(cm);
+ }
+ } else { // Gap in the middle
+ var cutTop = viewCuttingPoint(cm, from, from, -1);
+ var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
+ if (cutTop && cutBot) {
+ display.view = display.view.slice(0, cutTop.index)
+ .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
+ .concat(display.view.slice(cutBot.index));
+ display.viewTo += lendiff;
+ } else {
+ resetView(cm);
+ }
+ }
+
+ var ext = display.externalMeasured;
+ if (ext) {
+ if (to < ext.lineN)
+ ext.lineN += lendiff;
+ else if (from < ext.lineN + ext.size)
+ display.externalMeasured = null;
+ }
+ }
+
+ // Register a change to a single line. Type must be one of "text",
+ // "gutter", "class", "widget"
+ function regLineChange(cm, line, type) {
+ cm.curOp.viewChanged = true;
+ var display = cm.display, ext = cm.display.externalMeasured;
+ if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
+ display.externalMeasured = null;
+
+ if (line < display.viewFrom || line >= display.viewTo) return;
+ var lineView = display.view[findViewIndex(cm, line)];
+ if (lineView.node == null) return;
+ var arr = lineView.changes || (lineView.changes = []);
+ if (indexOf(arr, type) == -1) arr.push(type);
+ }
+
+ // Clear the view.
+ function resetView(cm) {
+ cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
+ cm.display.view = [];
+ cm.display.viewOffset = 0;
+ }
+
+ // Find the view element corresponding to a given line. Return null
+ // when the line isn't visible.
+ function findViewIndex(cm, n) {
+ if (n >= cm.display.viewTo) return null;
+ n -= cm.display.viewFrom;
+ if (n < 0) return null;
+ var view = cm.display.view;
+ for (var i = 0; i < view.length; i++) {
+ n -= view[i].size;
+ if (n < 0) return i;
+ }
+ }
+
+ function viewCuttingPoint(cm, oldN, newN, dir) {
+ var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
+ if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
+ return {index: index, lineN: newN};
+ for (var i = 0, n = cm.display.viewFrom; i < index; i++)
+ n += view[i].size;
+ if (n != oldN) {
+ if (dir > 0) {
+ if (index == view.length - 1) return null;
+ diff = (n + view[index].size) - oldN;
+ index++;
+ } else {
+ diff = n - oldN;
+ }
+ oldN += diff; newN += diff;
+ }
+ while (visualLineNo(cm.doc, newN) != newN) {
+ if (index == (dir < 0 ? 0 : view.length - 1)) return null;
+ newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
+ index += dir;
+ }
+ return {index: index, lineN: newN};
+ }
+
+ // Force the view to cover a given range, adding empty view element
+ // or clipping off existing ones as needed.
+ function adjustView(cm, from, to) {
+ var display = cm.display, view = display.view;
+ if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
+ display.view = buildViewArray(cm, from, to);
+ display.viewFrom = from;
+ } else {
+ if (display.viewFrom > from)
+ display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view);
+ else if (display.viewFrom < from)
+ display.view = display.view.slice(findViewIndex(cm, from));
+ display.viewFrom = from;
+ if (display.viewTo < to)
+ display.view = display.view.concat(buildViewArray(cm, display.viewTo, to));
+ else if (display.viewTo > to)
+ display.view = display.view.slice(0, findViewIndex(cm, to));
+ }
+ display.viewTo = to;
+ }
+
+ // Count the number of lines in the view whose DOM representation is
+ // out of date (or nonexistent).
+ function countDirtyView(cm) {
+ var view = cm.display.view, dirty = 0;
+ for (var i = 0; i < view.length; i++) {
+ var lineView = view[i];
+ if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty;
+ }
+ return dirty;
+ }
+
+ // EVENT HANDLERS
+
+ // Attach the necessary event handlers when initializing the editor
+ function registerEventHandlers(cm) {
+ var d = cm.display;
+ on(d.scroller, "mousedown", operation(cm, onMouseDown));
+ // Older IE's will not fire a second mousedown for a double click
+ if (ie && ie_version < 11)
+ on(d.scroller, "dblclick", operation(cm, function(e) {
+ if (signalDOMEvent(cm, e)) return;
+ var pos = posFromMouse(cm, e);
+ if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return;
+ e_preventDefault(e);
+ var word = cm.findWordAt(pos);
+ extendSelection(cm.doc, word.anchor, word.head);
+ }));
+ else
+ on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); });
+ // Some browsers fire contextmenu *after* opening the menu, at
+ // which point we can't mess with it anymore. Context menu is
+ // handled in onMouseDown for these browsers.
+ if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});
+
+ // Used to suppress mouse event handling when a touch happens
+ var touchFinished, prevTouch = {end: 0};
+ function finishTouch() {
+ if (d.activeTouch) {
+ touchFinished = setTimeout(function() {d.activeTouch = null;}, 1000);
+ prevTouch = d.activeTouch;
+ prevTouch.end = +new Date;
+ }
+ };
+ function isMouseLikeTouchEvent(e) {
+ if (e.touches.length != 1) return false;
+ var touch = e.touches[0];
+ return touch.radiusX <= 1 && touch.radiusY <= 1;
+ }
+ function farAway(touch, other) {
+ if (other.left == null) return true;
+ var dx = other.left - touch.left, dy = other.top - touch.top;
+ return dx * dx + dy * dy > 20 * 20;
+ }
+ on(d.scroller, "touchstart", function(e) {
+ if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) {
+ clearTimeout(touchFinished);
+ var now = +new Date;
+ d.activeTouch = {start: now, moved: false,
+ prev: now - prevTouch.end <= 300 ? prevTouch : null};
+ if (e.touches.length == 1) {
+ d.activeTouch.left = e.touches[0].pageX;
+ d.activeTouch.top = e.touches[0].pageY;
+ }
+ }
+ });
+ on(d.scroller, "touchmove", function() {
+ if (d.activeTouch) d.activeTouch.moved = true;
+ });
+ on(d.scroller, "touchend", function(e) {
+ var touch = d.activeTouch;
+ if (touch && !eventInWidget(d, e) && touch.left != null &&
+ !touch.moved && new Date - touch.start < 300) {
+ var pos = cm.coordsChar(d.activeTouch, "page"), range;
+ if (!touch.prev || farAway(touch, touch.prev)) // Single tap
+ range = new Range(pos, pos);
+ else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
+ range = cm.findWordAt(pos);
+ else // Triple tap
+ range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0)));
+ cm.setSelection(range.anchor, range.head);
+ cm.focus();
+ e_preventDefault(e);
+ }
+ finishTouch();
+ });
+ on(d.scroller, "touchcancel", finishTouch);
+
+ // Sync scrolling between fake scrollbars and real scrollable
+ // area, ensure viewport is updated when scrolling.
+ on(d.scroller, "scroll", function() {
+ if (d.scroller.clientHeight) {
+ setScrollTop(cm, d.scroller.scrollTop);
+ setScrollLeft(cm, d.scroller.scrollLeft, true);
+ signal(cm, "scroll", cm);
+ }
+ });
+
+ // Listen to wheel events in order to try and update the viewport on time.
+ on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});
+ on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);});
+
+ // Prevent wrapper from ever scrolling
+ on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
+
+ d.dragFunctions = {
+ enter: function(e) {if (!signalDOMEvent(cm, e)) e_stop(e);},
+ over: function(e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
+ start: function(e){onDragStart(cm, e);},
+ drop: operation(cm, onDrop),
+ leave: function(e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}
+ };
+
+ var inp = d.input.getField();
+ on(inp, "keyup", function(e) { onKeyUp.call(cm, e); });
+ on(inp, "keydown", operation(cm, onKeyDown));
+ on(inp, "keypress", operation(cm, onKeyPress));
+ on(inp, "focus", bind(onFocus, cm));
+ on(inp, "blur", bind(onBlur, cm));
+ }
+
+ function dragDropChanged(cm, value, old) {
+ var wasOn = old && old != CodeMirror.Init;
+ if (!value != !wasOn) {
+ var funcs = cm.display.dragFunctions;
+ var toggle = value ? on : off;
+ toggle(cm.display.scroller, "dragstart", funcs.start);
+ toggle(cm.display.scroller, "dragenter", funcs.enter);
+ toggle(cm.display.scroller, "dragover", funcs.over);
+ toggle(cm.display.scroller, "dragleave", funcs.leave);
+ toggle(cm.display.scroller, "drop", funcs.drop);
+ }
+ }
+
+ // Called when the window resizes
+ function onResize(cm) {
+ var d = cm.display;
+ if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
+ return;
+ // Might be a text scaling operation, clear size caches.
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+ d.scrollbarsClipped = false;
+ cm.setSize();
+ }
+
+ // MOUSE EVENTS
+
+ // Return true when the given mouse event happened in a widget
+ function eventInWidget(display, e) {
+ for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
+ if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
+ (n.parentNode == display.sizer && n != display.mover))
+ return true;
+ }
+ }
+
+ // Given a mouse event, find the corresponding position. If liberal
+ // is false, it checks whether a gutter or scrollbar was clicked,
+ // and returns null if it was. forRect is used by rectangular
+ // selections, and tries to estimate a character position even for
+ // coordinates beyond the right of the text.
+ function posFromMouse(cm, e, liberal, forRect) {
+ var display = cm.display;
+ if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null;
+
+ var x, y, space = display.lineSpace.getBoundingClientRect();
+ // Fails unpredictably on IE[67] when mouse is dragged around quickly.
+ try { x = e.clientX - space.left; y = e.clientY - space.top; }
+ catch (e) { return null; }
+ var coords = coordsChar(cm, x, y), line;
+ if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
+ var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
+ coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
+ }
+ return coords;
+ }
+
+ // A mouse down can be a single click, double click, triple click,
+ // start of selection drag, start of text drag, new cursor
+ // (ctrl-click), rectangle drag (alt-drag), or xwin
+ // middle-click-paste. Or it might be a click on something we should
+ // not interfere with, such as a scrollbar or widget.
+ function onMouseDown(e) {
+ var cm = this, display = cm.display;
+ if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) return;
+ display.shift = e.shiftKey;
+
+ if (eventInWidget(display, e)) {
+ if (!webkit) {
+ // Briefly turn off draggability, to allow widgets to do
+ // normal dragging things.
+ display.scroller.draggable = false;
+ setTimeout(function(){display.scroller.draggable = true;}, 100);
+ }
+ return;
+ }
+ if (clickInGutter(cm, e)) return;
+ var start = posFromMouse(cm, e);
+ window.focus();
+
+ switch (e_button(e)) {
+ case 1:
+ // #3261: make sure, that we're not starting a second selection
+ if (cm.state.selectingText)
+ cm.state.selectingText(e);
+ else if (start)
+ leftButtonDown(cm, e, start);
+ else if (e_target(e) == display.scroller)
+ e_preventDefault(e);
+ break;
+ case 2:
+ if (webkit) cm.state.lastMiddleDown = +new Date;
+ if (start) extendSelection(cm.doc, start);
+ setTimeout(function() {display.input.focus();}, 20);
+ e_preventDefault(e);
+ break;
+ case 3:
+ if (captureRightClick) onContextMenu(cm, e);
+ else delayBlurEvent(cm);
+ break;
+ }
+ }
+
+ var lastClick, lastDoubleClick;
+ function leftButtonDown(cm, e, start) {
+ if (ie) setTimeout(bind(ensureFocus, cm), 0);
+ else cm.curOp.focus = activeElt();
+
+ var now = +new Date, type;
+ if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
+ type = "triple";
+ } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
+ type = "double";
+ lastDoubleClick = {time: now, pos: start};
+ } else {
+ type = "single";
+ lastClick = {time: now, pos: start};
+ }
+
+ var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained;
+ if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
+ type == "single" && (contained = sel.contains(start)) > -1 &&
+ (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) &&
+ (cmp(contained.to(), start) > 0 || start.xRel < 0))
+ leftButtonStartDrag(cm, e, start, modifier);
+ else
+ leftButtonSelect(cm, e, start, type, modifier);
+ }
+
+ // Start a text drag. When it ends, see if any dragging actually
+ // happen, and treat as a click if it didn't.
+ function leftButtonStartDrag(cm, e, start, modifier) {
+ var display = cm.display, startTime = +new Date;
+ var dragEnd = operation(cm, function(e2) {
+ if (webkit) display.scroller.draggable = false;
+ cm.state.draggingText = false;
+ off(document, "mouseup", dragEnd);
+ off(display.scroller, "drop", dragEnd);
+ if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
+ e_preventDefault(e2);
+ if (!modifier && +new Date - 200 < startTime)
+ extendSelection(cm.doc, start);
+ // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
+ if (webkit || ie && ie_version == 9)
+ setTimeout(function() {document.body.focus(); display.input.focus();}, 20);
+ else
+ display.input.focus();
+ }
+ });
+ // Let the drag handler handle this.
+ if (webkit) display.scroller.draggable = true;
+ cm.state.draggingText = dragEnd;
+ // IE's approach to draggable
+ if (display.scroller.dragDrop) display.scroller.dragDrop();
+ on(document, "mouseup", dragEnd);
+ on(display.scroller, "drop", dragEnd);
+ }
+
+ // Normal selection, as opposed to text dragging.
+ function leftButtonSelect(cm, e, start, type, addNew) {
+ var display = cm.display, doc = cm.doc;
+ e_preventDefault(e);
+
+ var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
+ if (addNew && !e.shiftKey) {
+ ourIndex = doc.sel.contains(start);
+ if (ourIndex > -1)
+ ourRange = ranges[ourIndex];
+ else
+ ourRange = new Range(start, start);
+ } else {
+ ourRange = doc.sel.primary();
+ ourIndex = doc.sel.primIndex;
+ }
+
+ if (chromeOS ? e.shiftKey && e.metaKey : e.altKey) {
+ type = "rect";
+ if (!addNew) ourRange = new Range(start, start);
+ start = posFromMouse(cm, e, true, true);
+ ourIndex = -1;
+ } else if (type == "double") {
+ var word = cm.findWordAt(start);
+ if (cm.display.shift || doc.extend)
+ ourRange = extendRange(doc, ourRange, word.anchor, word.head);
+ else
+ ourRange = word;
+ } else if (type == "triple") {
+ var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)));
+ if (cm.display.shift || doc.extend)
+ ourRange = extendRange(doc, ourRange, line.anchor, line.head);
+ else
+ ourRange = line;
+ } else {
+ ourRange = extendRange(doc, ourRange, start);
+ }
+
+ if (!addNew) {
+ ourIndex = 0;
+ setSelection(doc, new Selection([ourRange], 0), sel_mouse);
+ startSel = doc.sel;
+ } else if (ourIndex == -1) {
+ ourIndex = ranges.length;
+ setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
+ {scroll: false, origin: "*mouse"});
+ } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) {
+ setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
+ {scroll: false, origin: "*mouse"});
+ startSel = doc.sel;
+ } else {
+ replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
+ }
+
+ var lastPos = start;
+ function extendTo(pos) {
+ if (cmp(lastPos, pos) == 0) return;
+ lastPos = pos;
+
+ if (type == "rect") {
+ var ranges = [], tabSize = cm.options.tabSize;
+ var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
+ var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
+ var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
+ for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
+ line <= end; line++) {
+ var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
+ if (left == right)
+ ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)));
+ else if (text.length > leftPos)
+ ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))));
+ }
+ if (!ranges.length) ranges.push(new Range(start, start));
+ setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
+ {origin: "*mouse", scroll: false});
+ cm.scrollIntoView(pos);
+ } else {
+ var oldRange = ourRange;
+ var anchor = oldRange.anchor, head = pos;
+ if (type != "single") {
+ if (type == "double")
+ var range = cm.findWordAt(pos);
+ else
+ var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0)));
+ if (cmp(range.anchor, anchor) > 0) {
+ head = range.head;
+ anchor = minPos(oldRange.from(), range.anchor);
+ } else {
+ head = range.anchor;
+ anchor = maxPos(oldRange.to(), range.head);
+ }
+ }
+ var ranges = startSel.ranges.slice(0);
+ ranges[ourIndex] = new Range(clipPos(doc, anchor), head);
+ setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse);
+ }
+ }
+
+ var editorSize = display.wrapper.getBoundingClientRect();
+ // Used to ensure timeout re-tries don't fire when another extend
+ // happened in the meantime (clearTimeout isn't reliable -- at
+ // least on Chrome, the timeouts still happen even when cleared,
+ // if the clear happens after their scheduled firing time).
+ var counter = 0;
+
+ function extend(e) {
+ var curCount = ++counter;
+ var cur = posFromMouse(cm, e, true, type == "rect");
+ if (!cur) return;
+ if (cmp(cur, lastPos) != 0) {
+ cm.curOp.focus = activeElt();
+ extendTo(cur);
+ var visible = visibleLines(display, doc);
+ if (cur.line >= visible.to || cur.line < visible.from)
+ setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);
+ } else {
+ var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
+ if (outside) setTimeout(operation(cm, function() {
+ if (counter != curCount) return;
+ display.scroller.scrollTop += outside;
+ extend(e);
+ }), 50);
+ }
+ }
+
+ function done(e) {
+ cm.state.selectingText = false;
+ counter = Infinity;
+ e_preventDefault(e);
+ display.input.focus();
+ off(document, "mousemove", move);
+ off(document, "mouseup", up);
+ doc.history.lastSelOrigin = null;
+ }
+
+ var move = operation(cm, function(e) {
+ if (!e_button(e)) done(e);
+ else extend(e);
+ });
+ var up = operation(cm, done);
+ cm.state.selectingText = up;
+ on(document, "mousemove", move);
+ on(document, "mouseup", up);
+ }
+
+ // Determines whether an event happened in the gutter, and fires the
+ // handlers for the corresponding event.
+ function gutterEvent(cm, e, type, prevent) {
+ try { var mX = e.clientX, mY = e.clientY; }
+ catch(e) { return false; }
+ if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false;
+ if (prevent) e_preventDefault(e);
+
+ var display = cm.display;
+ var lineBox = display.lineDiv.getBoundingClientRect();
+
+ if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e);
+ mY -= lineBox.top - display.viewOffset;
+
+ for (var i = 0; i < cm.options.gutters.length; ++i) {
+ var g = display.gutters.childNodes[i];
+ if (g && g.getBoundingClientRect().right >= mX) {
+ var line = lineAtHeight(cm.doc, mY);
+ var gutter = cm.options.gutters[i];
+ signal(cm, type, cm, line, gutter, e);
+ return e_defaultPrevented(e);
+ }
+ }
+ }
+
+ function clickInGutter(cm, e) {
+ return gutterEvent(cm, e, "gutterClick", true);
+ }
+
+ // Kludge to work around strange IE behavior where it'll sometimes
+ // re-fire a series of drag-related events right after the drop (#1551)
+ var lastDrop = 0;
+
+ function onDrop(e) {
+ var cm = this;
+ clearDragCursor(cm);
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
+ return;
+ e_preventDefault(e);
+ if (ie) lastDrop = +new Date;
+ var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
+ if (!pos || cm.isReadOnly()) return;
+ // Might be a file drop, in which case we simply extract the text
+ // and insert it.
+ if (files && files.length && window.FileReader && window.File) {
+ var n = files.length, text = Array(n), read = 0;
+ var loadFile = function(file, i) {
+ if (cm.options.allowDropFileTypes &&
+ indexOf(cm.options.allowDropFileTypes, file.type) == -1)
+ return;
+
+ var reader = new FileReader;
+ reader.onload = operation(cm, function() {
+ var content = reader.result;
+ if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) content = "";
+ text[i] = content;
+ if (++read == n) {
+ pos = clipPos(cm.doc, pos);
+ var change = {from: pos, to: pos,
+ text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
+ origin: "paste"};
+ makeChange(cm.doc, change);
+ setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
+ }
+ });
+ reader.readAsText(file);
+ };
+ for (var i = 0; i < n; ++i) loadFile(files[i], i);
+ } else { // Normal drop
+ // Don't do a replace if the drop happened inside of the selected text.
+ if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
+ cm.state.draggingText(e);
+ // Ensure the editor is re-focused
+ setTimeout(function() {cm.display.input.focus();}, 20);
+ return;
+ }
+ try {
+ var text = e.dataTransfer.getData("Text");
+ if (text) {
+ if (cm.state.draggingText && !(mac ? e.altKey : e.ctrlKey))
+ var selected = cm.listSelections();
+ setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
+ if (selected) for (var i = 0; i < selected.length; ++i)
+ replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag");
+ cm.replaceSelection(text, "around", "paste");
+ cm.display.input.focus();
+ }
+ }
+ catch(e){}
+ }
+ }
+
+ function onDragStart(cm, e) {
+ if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; }
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;
+
+ e.dataTransfer.setData("Text", cm.getSelection());
+ e.dataTransfer.effectAllowed = "copyMove"
+
+ // Use dummy image instead of default browsers image.
+ // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
+ if (e.dataTransfer.setDragImage && !safari) {
+ var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
+ img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
+ if (presto) {
+ img.width = img.height = 1;
+ cm.display.wrapper.appendChild(img);
+ // Force a relayout, or Opera won't use our image for some obscure reason
+ img._top = img.offsetTop;
+ }
+ e.dataTransfer.setDragImage(img, 0, 0);
+ if (presto) img.parentNode.removeChild(img);
+ }
+ }
+
+ function onDragOver(cm, e) {
+ var pos = posFromMouse(cm, e);
+ if (!pos) return;
+ var frag = document.createDocumentFragment();
+ drawSelectionCursor(cm, pos, frag);
+ if (!cm.display.dragCursor) {
+ cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
+ cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
+ }
+ removeChildrenAndAdd(cm.display.dragCursor, frag);
+ }
+
+ function clearDragCursor(cm) {
+ if (cm.display.dragCursor) {
+ cm.display.lineSpace.removeChild(cm.display.dragCursor);
+ cm.display.dragCursor = null;
+ }
+ }
+
+ // SCROLL EVENTS
+
+ // Sync the scrollable area and scrollbars, ensure the viewport
+ // covers the visible area.
+ function setScrollTop(cm, val) {
+ if (Math.abs(cm.doc.scrollTop - val) < 2) return;
+ cm.doc.scrollTop = val;
+ if (!gecko) updateDisplaySimple(cm, {top: val});
+ if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;
+ cm.display.scrollbars.setScrollTop(val);
+ if (gecko) updateDisplaySimple(cm);
+ startWorker(cm, 100);
+ }
+ // Sync scroller and scrollbar, ensure the gutter elements are
+ // aligned.
+ function setScrollLeft(cm, val, isScroller) {
+ if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return;
+ val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
+ cm.doc.scrollLeft = val;
+ alignHorizontally(cm);
+ if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;
+ cm.display.scrollbars.setScrollLeft(val);
+ }
+
+ // Since the delta values reported on mouse wheel events are
+ // unstandardized between browsers and even browser versions, and
+ // generally horribly unpredictable, this code starts by measuring
+ // the scroll effect that the first few mouse wheel events have,
+ // and, from that, detects the way it can convert deltas to pixel
+ // offsets afterwards.
+ //
+ // The reason we want to know the amount a wheel event will scroll
+ // is that it gives us a chance to update the display before the
+ // actual scrolling happens, reducing flickering.
+
+ var wheelSamples = 0, wheelPixelsPerUnit = null;
+ // Fill in a browser-detected starting value on browsers where we
+ // know one. These don't have to be accurate -- the result of them
+ // being wrong would just be a slight flicker on the first wheel
+ // scroll (if it is large enough).
+ if (ie) wheelPixelsPerUnit = -.53;
+ else if (gecko) wheelPixelsPerUnit = 15;
+ else if (chrome) wheelPixelsPerUnit = -.7;
+ else if (safari) wheelPixelsPerUnit = -1/3;
+
+ var wheelEventDelta = function(e) {
+ var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
+ if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
+ if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
+ else if (dy == null) dy = e.wheelDelta;
+ return {x: dx, y: dy};
+ };
+ CodeMirror.wheelEventPixels = function(e) {
+ var delta = wheelEventDelta(e);
+ delta.x *= wheelPixelsPerUnit;
+ delta.y *= wheelPixelsPerUnit;
+ return delta;
+ };
+
+ function onScrollWheel(cm, e) {
+ var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
+
+ var display = cm.display, scroll = display.scroller;
+ // Quit if there's nothing to scroll here
+ var canScrollX = scroll.scrollWidth > scroll.clientWidth;
+ var canScrollY = scroll.scrollHeight > scroll.clientHeight;
+ if (!(dx && canScrollX || dy && canScrollY)) return;
+
+ // Webkit browsers on OS X abort momentum scrolls when the target
+ // of the scroll event is removed from the scrollable element.
+ // This hack (see related code in patchDisplay) makes sure the
+ // element is kept around.
+ if (dy && mac && webkit) {
+ outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
+ for (var i = 0; i < view.length; i++) {
+ if (view[i].node == cur) {
+ cm.display.currentWheelTarget = cur;
+ break outer;
+ }
+ }
+ }
+ }
+
+ // On some browsers, horizontal scrolling will cause redraws to
+ // happen before the gutter has been realigned, causing it to
+ // wriggle around in a most unseemly way. When we have an
+ // estimated pixels/delta value, we just handle horizontal
+ // scrolling entirely here. It'll be slightly off from native, but
+ // better than glitching out.
+ if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
+ if (dy && canScrollY)
+ setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)));
+ setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)));
+ // Only prevent default scrolling if vertical scrolling is
+ // actually possible. Otherwise, it causes vertical scroll
+ // jitter on OSX trackpads when deltaX is small and deltaY
+ // is large (issue #3579)
+ if (!dy || (dy && canScrollY))
+ e_preventDefault(e);
+ display.wheelStartX = null; // Abort measurement, if in progress
+ return;
+ }
+
+ // 'Project' the visible viewport to cover the area that is being
+ // scrolled into view (if we know enough to estimate it).
+ if (dy && wheelPixelsPerUnit != null) {
+ var pixels = dy * wheelPixelsPerUnit;
+ var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
+ if (pixels < 0) top = Math.max(0, top + pixels - 50);
+ else bot = Math.min(cm.doc.height, bot + pixels + 50);
+ updateDisplaySimple(cm, {top: top, bottom: bot});
+ }
+
+ if (wheelSamples < 20) {
+ if (display.wheelStartX == null) {
+ display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
+ display.wheelDX = dx; display.wheelDY = dy;
+ setTimeout(function() {
+ if (display.wheelStartX == null) return;
+ var movedX = scroll.scrollLeft - display.wheelStartX;
+ var movedY = scroll.scrollTop - display.wheelStartY;
+ var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
+ (movedX && display.wheelDX && movedX / display.wheelDX);
+ display.wheelStartX = display.wheelStartY = null;
+ if (!sample) return;
+ wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
+ ++wheelSamples;
+ }, 200);
+ } else {
+ display.wheelDX += dx; display.wheelDY += dy;
+ }
+ }
+ }
+
+ // KEY EVENTS
+
+ // Run a handler that was bound to a key.
+ function doHandleBinding(cm, bound, dropShift) {
+ if (typeof bound == "string") {
+ bound = commands[bound];
+ if (!bound) return false;
+ }
+ // Ensure previous input has been read, so that the handler sees a
+ // consistent view of the document
+ cm.display.input.ensurePolled();
+ var prevShift = cm.display.shift, done = false;
+ try {
+ if (cm.isReadOnly()) cm.state.suppressEdits = true;
+ if (dropShift) cm.display.shift = false;
+ done = bound(cm) != Pass;
+ } finally {
+ cm.display.shift = prevShift;
+ cm.state.suppressEdits = false;
+ }
+ return done;
+ }
+
+ function lookupKeyForEditor(cm, name, handle) {
+ for (var i = 0; i < cm.state.keyMaps.length; i++) {
+ var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
+ if (result) return result;
+ }
+ return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
+ || lookupKey(name, cm.options.keyMap, handle, cm);
+ }
+
+ var stopSeq = new Delayed;
+ function dispatchKey(cm, name, e, handle) {
+ var seq = cm.state.keySeq;
+ if (seq) {
+ if (isModifierKey(name)) return "handled";
+ stopSeq.set(50, function() {
+ if (cm.state.keySeq == seq) {
+ cm.state.keySeq = null;
+ cm.display.input.reset();
+ }
+ });
+ name = seq + " " + name;
+ }
+ var result = lookupKeyForEditor(cm, name, handle);
+
+ if (result == "multi")
+ cm.state.keySeq = name;
+ if (result == "handled")
+ signalLater(cm, "keyHandled", cm, name, e);
+
+ if (result == "handled" || result == "multi") {
+ e_preventDefault(e);
+ restartBlink(cm);
+ }
+
+ if (seq && !result && /\'$/.test(name)) {
+ e_preventDefault(e);
+ return true;
+ }
+ return !!result;
+ }
+
+ // Handle a key from the keydown event.
+ function handleKeyBinding(cm, e) {
+ var name = keyName(e, true);
+ if (!name) return false;
+
+ if (e.shiftKey && !cm.state.keySeq) {
+ // First try to resolve full name (including 'Shift-'). Failing
+ // that, see if there is a cursor-motion command (starting with
+ // 'go') bound to the keyname without 'Shift-'.
+ return dispatchKey(cm, "Shift-" + name, e, function(b) {return doHandleBinding(cm, b, true);})
+ || dispatchKey(cm, name, e, function(b) {
+ if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
+ return doHandleBinding(cm, b);
+ });
+ } else {
+ return dispatchKey(cm, name, e, function(b) { return doHandleBinding(cm, b); });
+ }
+ }
+
+ // Handle a key from the keypress event
+ function handleCharBinding(cm, e, ch) {
+ return dispatchKey(cm, "'" + ch + "'", e,
+ function(b) { return doHandleBinding(cm, b, true); });
+ }
+
+ var lastStoppedKey = null;
+ function onKeyDown(e) {
+ var cm = this;
+ cm.curOp.focus = activeElt();
+ if (signalDOMEvent(cm, e)) return;
+ // IE does strange things with escape.
+ if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false;
+ var code = e.keyCode;
+ cm.display.shift = code == 16 || e.shiftKey;
+ var handled = handleKeyBinding(cm, e);
+ if (presto) {
+ lastStoppedKey = handled ? code : null;
+ // Opera has no cut event... we try to at least catch the key combo
+ if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
+ cm.replaceSelection("", null, "cut");
+ }
+
+ // Turn mouse into crosshair when Alt is held on Mac.
+ if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
+ showCrossHair(cm);
+ }
+
+ function showCrossHair(cm) {
+ var lineDiv = cm.display.lineDiv;
+ addClass(lineDiv, "CodeMirror-crosshair");
+
+ function up(e) {
+ if (e.keyCode == 18 || !e.altKey) {
+ rmClass(lineDiv, "CodeMirror-crosshair");
+ off(document, "keyup", up);
+ off(document, "mouseover", up);
+ }
+ }
+ on(document, "keyup", up);
+ on(document, "mouseover", up);
+ }
+
+ function onKeyUp(e) {
+ if (e.keyCode == 16) this.doc.sel.shift = false;
+ signalDOMEvent(this, e);
+ }
+
+ function onKeyPress(e) {
+ var cm = this;
+ if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return;
+ var keyCode = e.keyCode, charCode = e.charCode;
+ if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
+ if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return;
+ var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
+ if (handleCharBinding(cm, e, ch)) return;
+ cm.display.input.onKeyPress(e);
+ }
+
+ // FOCUS/BLUR EVENTS
+
+ function delayBlurEvent(cm) {
+ cm.state.delayingBlurEvent = true;
+ setTimeout(function() {
+ if (cm.state.delayingBlurEvent) {
+ cm.state.delayingBlurEvent = false;
+ onBlur(cm);
+ }
+ }, 100);
+ }
+
+ function onFocus(cm) {
+ if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false;
+
+ if (cm.options.readOnly == "nocursor") return;
+ if (!cm.state.focused) {
+ signal(cm, "focus", cm);
+ cm.state.focused = true;
+ addClass(cm.display.wrapper, "CodeMirror-focused");
+ // This test prevents this from firing when a context
+ // menu is closed (since the input reset would kill the
+ // select-all detection hack)
+ if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
+ cm.display.input.reset();
+ if (webkit) setTimeout(function() { cm.display.input.reset(true); }, 20); // Issue #1730
+ }
+ cm.display.input.receivedFocus();
+ }
+ restartBlink(cm);
+ }
+ function onBlur(cm) {
+ if (cm.state.delayingBlurEvent) return;
+
+ if (cm.state.focused) {
+ signal(cm, "blur", cm);
+ cm.state.focused = false;
+ rmClass(cm.display.wrapper, "CodeMirror-focused");
+ }
+ clearInterval(cm.display.blinker);
+ setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150);
+ }
+
+ // CONTEXT MENU HANDLING
+
+ // To make the context menu work, we need to briefly unhide the
+ // textarea (making it as unobtrusive as possible) to let the
+ // right-click take effect on it.
+ function onContextMenu(cm, e) {
+ if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return;
+ if (signalDOMEvent(cm, e, "contextmenu")) return;
+ cm.display.input.onContextMenu(e);
+ }
+
+ function contextMenuInGutter(cm, e) {
+ if (!hasHandler(cm, "gutterContextMenu")) return false;
+ return gutterEvent(cm, e, "gutterContextMenu", false);
+ }
+
+ // UPDATING
+
+ // Compute the position of the end of a change (its 'to' property
+ // refers to the pre-change end).
+ var changeEnd = CodeMirror.changeEnd = function(change) {
+ if (!change.text) return change.to;
+ return Pos(change.from.line + change.text.length - 1,
+ lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0));
+ };
+
+ // Adjust a position to refer to the post-change position of the
+ // same text, or the end of the change if the change covers it.
+ function adjustForChange(pos, change) {
+ if (cmp(pos, change.from) < 0) return pos;
+ if (cmp(pos, change.to) <= 0) return changeEnd(change);
+
+ var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
+ if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch;
+ return Pos(line, ch);
+ }
+
+ function computeSelAfterChange(doc, change) {
+ var out = [];
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ var range = doc.sel.ranges[i];
+ out.push(new Range(adjustForChange(range.anchor, change),
+ adjustForChange(range.head, change)));
+ }
+ return normalizeSelection(out, doc.sel.primIndex);
+ }
+
+ function offsetPos(pos, old, nw) {
+ if (pos.line == old.line)
+ return Pos(nw.line, pos.ch - old.ch + nw.ch);
+ else
+ return Pos(nw.line + (pos.line - old.line), pos.ch);
+ }
+
+ // Used by replaceSelections to allow moving the selection to the
+ // start or around the replaced test. Hint may be "start" or "around".
+ function computeReplacedSel(doc, changes, hint) {
+ var out = [];
+ var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
+ for (var i = 0; i < changes.length; i++) {
+ var change = changes[i];
+ var from = offsetPos(change.from, oldPrev, newPrev);
+ var to = offsetPos(changeEnd(change), oldPrev, newPrev);
+ oldPrev = change.to;
+ newPrev = to;
+ if (hint == "around") {
+ var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
+ out[i] = new Range(inv ? to : from, inv ? from : to);
+ } else {
+ out[i] = new Range(from, from);
+ }
+ }
+ return new Selection(out, doc.sel.primIndex);
+ }
+
+ // Allow "beforeChange" event handlers to influence a change
+ function filterChange(doc, change, update) {
+ var obj = {
+ canceled: false,
+ from: change.from,
+ to: change.to,
+ text: change.text,
+ origin: change.origin,
+ cancel: function() { this.canceled = true; }
+ };
+ if (update) obj.update = function(from, to, text, origin) {
+ if (from) this.from = clipPos(doc, from);
+ if (to) this.to = clipPos(doc, to);
+ if (text) this.text = text;
+ if (origin !== undefined) this.origin = origin;
+ };
+ signal(doc, "beforeChange", doc, obj);
+ if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj);
+
+ if (obj.canceled) return null;
+ return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin};
+ }
+
+ // Apply a change to a document, and add it to the document's
+ // history, and propagating it to all linked documents.
+ function makeChange(doc, change, ignoreReadOnly) {
+ if (doc.cm) {
+ if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly);
+ if (doc.cm.state.suppressEdits) return;
+ }
+
+ if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
+ change = filterChange(doc, change, true);
+ if (!change) return;
+ }
+
+ // Possibly split or suppress the update based on the presence
+ // of read-only spans in its range.
+ var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
+ if (split) {
+ for (var i = split.length - 1; i >= 0; --i)
+ makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text});
+ } else {
+ makeChangeInner(doc, change);
+ }
+ }
+
+ function makeChangeInner(doc, change) {
+ if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return;
+ var selAfter = computeSelAfterChange(doc, change);
+ addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
+
+ makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
+ var rebased = [];
+
+ linkedDocs(doc, function(doc, sharedHist) {
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+ rebaseHist(doc.history, change);
+ rebased.push(doc.history);
+ }
+ makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
+ });
+ }
+
+ // Revert a change stored in a document's history.
+ function makeChangeFromHistory(doc, type, allowSelectionOnly) {
+ if (doc.cm && doc.cm.state.suppressEdits) return;
+
+ var hist = doc.history, event, selAfter = doc.sel;
+ var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
+
+ // Verify that there is a useable event (so that ctrl-z won't
+ // needlessly clear selection events)
+ for (var i = 0; i < source.length; i++) {
+ event = source[i];
+ if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
+ break;
+ }
+ if (i == source.length) return;
+ hist.lastOrigin = hist.lastSelOrigin = null;
+
+ for (;;) {
+ event = source.pop();
+ if (event.ranges) {
+ pushSelectionToHistory(event, dest);
+ if (allowSelectionOnly && !event.equals(doc.sel)) {
+ setSelection(doc, event, {clearRedo: false});
+ return;
+ }
+ selAfter = event;
+ }
+ else break;
+ }
+
+ // Build up a reverse change object to add to the opposite history
+ // stack (redo when undoing, and vice versa).
+ var antiChanges = [];
+ pushSelectionToHistory(selAfter, dest);
+ dest.push({changes: antiChanges, generation: hist.generation});
+ hist.generation = event.generation || ++hist.maxGeneration;
+
+ var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
+
+ for (var i = event.changes.length - 1; i >= 0; --i) {
+ var change = event.changes[i];
+ change.origin = type;
+ if (filter && !filterChange(doc, change, false)) {
+ source.length = 0;
+ return;
+ }
+
+ antiChanges.push(historyChangeFromChange(doc, change));
+
+ var after = i ? computeSelAfterChange(doc, change) : lst(source);
+ makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
+ if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)});
+ var rebased = [];
+
+ // Propagate to the linked documents
+ linkedDocs(doc, function(doc, sharedHist) {
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+ rebaseHist(doc.history, change);
+ rebased.push(doc.history);
+ }
+ makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
+ });
+ }
+ }
+
+ // Sub-views need their line numbers shifted when text is added
+ // above or below them in the parent document.
+ function shiftDoc(doc, distance) {
+ if (distance == 0) return;
+ doc.first += distance;
+ doc.sel = new Selection(map(doc.sel.ranges, function(range) {
+ return new Range(Pos(range.anchor.line + distance, range.anchor.ch),
+ Pos(range.head.line + distance, range.head.ch));
+ }), doc.sel.primIndex);
+ if (doc.cm) {
+ regChange(doc.cm, doc.first, doc.first - distance, distance);
+ for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
+ regLineChange(doc.cm, l, "gutter");
+ }
+ }
+
+ // More lower-level change function, handling only a single document
+ // (not linked ones).
+ function makeChangeSingleDoc(doc, change, selAfter, spans) {
+ if (doc.cm && !doc.cm.curOp)
+ return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans);
+
+ if (change.to.line < doc.first) {
+ shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
+ return;
+ }
+ if (change.from.line > doc.lastLine()) return;
+
+ // Clip the change to the size of this doc
+ if (change.from.line < doc.first) {
+ var shift = change.text.length - 1 - (doc.first - change.from.line);
+ shiftDoc(doc, shift);
+ change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
+ text: [lst(change.text)], origin: change.origin};
+ }
+ var last = doc.lastLine();
+ if (change.to.line > last) {
+ change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
+ text: [change.text[0]], origin: change.origin};
+ }
+
+ change.removed = getBetween(doc, change.from, change.to);
+
+ if (!selAfter) selAfter = computeSelAfterChange(doc, change);
+ if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans);
+ else updateDoc(doc, change, spans);
+ setSelectionNoUndo(doc, selAfter, sel_dontScroll);
+ }
+
+ // Handle the interaction of a change to a document with the editor
+ // that this document is part of.
+ function makeChangeSingleDocInEditor(cm, change, spans) {
+ var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
+
+ var recomputeMaxLength = false, checkWidthStart = from.line;
+ if (!cm.options.lineWrapping) {
+ checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
+ doc.iter(checkWidthStart, to.line + 1, function(line) {
+ if (line == display.maxLine) {
+ recomputeMaxLength = true;
+ return true;
+ }
+ });
+ }
+
+ if (doc.sel.contains(change.from, change.to) > -1)
+ signalCursorActivity(cm);
+
+ updateDoc(doc, change, spans, estimateHeight(cm));
+
+ if (!cm.options.lineWrapping) {
+ doc.iter(checkWidthStart, from.line + change.text.length, function(line) {
+ var len = lineLength(line);
+ if (len > display.maxLineLength) {
+ display.maxLine = line;
+ display.maxLineLength = len;
+ display.maxLineChanged = true;
+ recomputeMaxLength = false;
+ }
+ });
+ if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
+ }
+
+ // Adjust frontier, schedule worker
+ doc.frontier = Math.min(doc.frontier, from.line);
+ startWorker(cm, 400);
+
+ var lendiff = change.text.length - (to.line - from.line) - 1;
+ // Remember that these lines changed, for updating the display
+ if (change.full)
+ regChange(cm);
+ else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
+ regLineChange(cm, from.line, "text");
+ else
+ regChange(cm, from.line, to.line + 1, lendiff);
+
+ var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
+ if (changeHandler || changesHandler) {
+ var obj = {
+ from: from, to: to,
+ text: change.text,
+ removed: change.removed,
+ origin: change.origin
+ };
+ if (changeHandler) signalLater(cm, "change", cm, obj);
+ if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj);
+ }
+ cm.display.selForContextMenu = null;
+ }
+
+ function replaceRange(doc, code, from, to, origin) {
+ if (!to) to = from;
+ if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; }
+ if (typeof code == "string") code = doc.splitLines(code);
+ makeChange(doc, {from: from, to: to, text: code, origin: origin});
+ }
+
+ // SCROLLING THINGS INTO VIEW
+
+ // If an editor sits on the top or bottom of the window, partially
+ // scrolled out of view, this ensures that the cursor is visible.
+ function maybeScrollWindow(cm, coords) {
+ if (signalDOMEvent(cm, "scrollCursorIntoView")) return;
+
+ var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
+ if (coords.top + box.top < 0) doScroll = true;
+ else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
+ if (doScroll != null && !phantom) {
+ var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " +
+ (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " +
+ (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px; left: " +
+ coords.left + "px; width: 2px;");
+ cm.display.lineSpace.appendChild(scrollNode);
+ scrollNode.scrollIntoView(doScroll);
+ cm.display.lineSpace.removeChild(scrollNode);
+ }
+ }
+
+ // Scroll a given position into view (immediately), verifying that
+ // it actually became visible (as line heights are accurately
+ // measured, the position of something may 'drift' during drawing).
+ function scrollPosIntoView(cm, pos, end, margin) {
+ if (margin == null) margin = 0;
+ for (var limit = 0; limit < 5; limit++) {
+ var changed = false, coords = cursorCoords(cm, pos);
+ var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
+ var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left),
+ Math.min(coords.top, endCoords.top) - margin,
+ Math.max(coords.left, endCoords.left),
+ Math.max(coords.bottom, endCoords.bottom) + margin);
+ var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
+ if (scrollPos.scrollTop != null) {
+ setScrollTop(cm, scrollPos.scrollTop);
+ if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;
+ }
+ if (scrollPos.scrollLeft != null) {
+ setScrollLeft(cm, scrollPos.scrollLeft);
+ if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;
+ }
+ if (!changed) break;
+ }
+ return coords;
+ }
+
+ // Scroll a given set of coordinates into view (immediately).
+ function scrollIntoView(cm, x1, y1, x2, y2) {
+ var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);
+ if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);
+ if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);
+ }
+
+ // Calculate a new scroll position needed to scroll the given
+ // rectangle into view. Returns an object with scrollTop and
+ // scrollLeft properties. When these are undefined, the
+ // vertical/horizontal position does not need to be adjusted.
+ function calculateScrollPos(cm, x1, y1, x2, y2) {
+ var display = cm.display, snapMargin = textHeight(cm.display);
+ if (y1 < 0) y1 = 0;
+ var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
+ var screen = displayHeight(cm), result = {};
+ if (y2 - y1 > screen) y2 = y1 + screen;
+ var docBottom = cm.doc.height + paddingVert(display);
+ var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin;
+ if (y1 < screentop) {
+ result.scrollTop = atTop ? 0 : y1;
+ } else if (y2 > screentop + screen) {
+ var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);
+ if (newTop != screentop) result.scrollTop = newTop;
+ }
+
+ var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
+ var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
+ var tooWide = x2 - x1 > screenw;
+ if (tooWide) x2 = x1 + screenw;
+ if (x1 < 10)
+ result.scrollLeft = 0;
+ else if (x1 < screenleft)
+ result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10));
+ else if (x2 > screenw + screenleft - 3)
+ result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw;
+ return result;
+ }
+
+ // Store a relative adjustment to the scroll position in the current
+ // operation (to be applied when the operation finishes).
+ function addToScrollPos(cm, left, top) {
+ if (left != null || top != null) resolveScrollToPos(cm);
+ if (left != null)
+ cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left;
+ if (top != null)
+ cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
+ }
+
+ // Make sure that at the end of the operation the current cursor is
+ // shown.
+ function ensureCursorVisible(cm) {
+ resolveScrollToPos(cm);
+ var cur = cm.getCursor(), from = cur, to = cur;
+ if (!cm.options.lineWrapping) {
+ from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;
+ to = Pos(cur.line, cur.ch + 1);
+ }
+ cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true};
+ }
+
+ // When an operation has its scrollToPos property set, and another
+ // scroll action is applied before the end of the operation, this
+ // 'simulates' scrolling that position into view in a cheap way, so
+ // that the effect of intermediate scroll commands is not ignored.
+ function resolveScrollToPos(cm) {
+ var range = cm.curOp.scrollToPos;
+ if (range) {
+ cm.curOp.scrollToPos = null;
+ var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
+ var sPos = calculateScrollPos(cm, Math.min(from.left, to.left),
+ Math.min(from.top, to.top) - range.margin,
+ Math.max(from.right, to.right),
+ Math.max(from.bottom, to.bottom) + range.margin);
+ cm.scrollTo(sPos.scrollLeft, sPos.scrollTop);
+ }
+ }
+
+ // API UTILITIES
+
+ // Indent the given line. The how parameter can be "smart",
+ // "add"/null, "subtract", or "prev". When aggressive is false
+ // (typically set to true for forced single-line indents), empty
+ // lines are not indented, and places where the mode returns Pass
+ // are left alone.
+ function indentLine(cm, n, how, aggressive) {
+ var doc = cm.doc, state;
+ if (how == null) how = "add";
+ if (how == "smart") {
+ // Fall back to "prev" when the mode doesn't have an indentation
+ // method.
+ if (!doc.mode.indent) how = "prev";
+ else state = getStateBefore(cm, n);
+ }
+
+ var tabSize = cm.options.tabSize;
+ var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
+ if (line.stateAfter) line.stateAfter = null;
+ var curSpaceString = line.text.match(/^\s*/)[0], indentation;
+ if (!aggressive && !/\S/.test(line.text)) {
+ indentation = 0;
+ how = "not";
+ } else if (how == "smart") {
+ indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
+ if (indentation == Pass || indentation > 150) {
+ if (!aggressive) return;
+ how = "prev";
+ }
+ }
+ if (how == "prev") {
+ if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);
+ else indentation = 0;
+ } else if (how == "add") {
+ indentation = curSpace + cm.options.indentUnit;
+ } else if (how == "subtract") {
+ indentation = curSpace - cm.options.indentUnit;
+ } else if (typeof how == "number") {
+ indentation = curSpace + how;
+ }
+ indentation = Math.max(0, indentation);
+
+ var indentString = "", pos = 0;
+ if (cm.options.indentWithTabs)
+ for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
+ if (pos < indentation) indentString += spaceStr(indentation - pos);
+
+ if (indentString != curSpaceString) {
+ replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
+ line.stateAfter = null;
+ return true;
+ } else {
+ // Ensure that, if the cursor was in the whitespace at the start
+ // of the line, it is moved to the end of that space.
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ var range = doc.sel.ranges[i];
+ if (range.head.line == n && range.head.ch < curSpaceString.length) {
+ var pos = Pos(n, curSpaceString.length);
+ replaceOneSelection(doc, i, new Range(pos, pos));
+ break;
+ }
+ }
+ }
+ }
+
+ // Utility for applying a change to a line by handle or number,
+ // returning the number and optionally registering the line as
+ // changed.
+ function changeLine(doc, handle, changeType, op) {
+ var no = handle, line = handle;
+ if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
+ else no = lineNo(handle);
+ if (no == null) return null;
+ if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType);
+ return line;
+ }
+
+ // Helper for deleting text near the selection(s), used to implement
+ // backspace, delete, and similar functionality.
+ function deleteNearSelection(cm, compute) {
+ var ranges = cm.doc.sel.ranges, kill = [];
+ // Build up a set of ranges to kill first, merging overlapping
+ // ranges.
+ for (var i = 0; i < ranges.length; i++) {
+ var toKill = compute(ranges[i]);
+ while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
+ var replaced = kill.pop();
+ if (cmp(replaced.from, toKill.from) < 0) {
+ toKill.from = replaced.from;
+ break;
+ }
+ }
+ kill.push(toKill);
+ }
+ // Next, remove those actual ranges.
+ runInOp(cm, function() {
+ for (var i = kill.length - 1; i >= 0; i--)
+ replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete");
+ ensureCursorVisible(cm);
+ });
+ }
+
+ // Used for horizontal relative motion. Dir is -1 or 1 (left or
+ // right), unit can be "char", "column" (like char, but doesn't
+ // cross line boundaries), "word" (across next word), or "group" (to
+ // the start of next group of word or non-word-non-whitespace
+ // chars). The visually param controls whether, in right-to-left
+ // text, direction 1 means to move towards the next index in the
+ // string, or towards the character to the right of the current
+ // position. The resulting position will have a hitSide=true
+ // property if it reached the end of the document.
+ function findPosH(doc, pos, dir, unit, visually) {
+ var line = pos.line, ch = pos.ch, origDir = dir;
+ var lineObj = getLine(doc, line);
+ function findNextLine() {
+ var l = line + dir;
+ if (l < doc.first || l >= doc.first + doc.size) return false
+ line = l;
+ return lineObj = getLine(doc, l);
+ }
+ function moveOnce(boundToLine) {
+ var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);
+ if (next == null) {
+ if (!boundToLine && findNextLine()) {
+ if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
+ else ch = dir < 0 ? lineObj.text.length : 0;
+ } else return false
+ } else ch = next;
+ return true;
+ }
+
+ if (unit == "char") {
+ moveOnce()
+ } else if (unit == "column") {
+ moveOnce(true)
+ } else if (unit == "word" || unit == "group") {
+ var sawType = null, group = unit == "group";
+ var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
+ for (var first = true;; first = false) {
+ if (dir < 0 && !moveOnce(!first)) break;
+ var cur = lineObj.text.charAt(ch) || "\n";
+ var type = isWordChar(cur, helper) ? "w"
+ : group && cur == "\n" ? "n"
+ : !group || /\s/.test(cur) ? null
+ : "p";
+ if (group && !first && !type) type = "s";
+ if (sawType && sawType != type) {
+ if (dir < 0) {dir = 1; moveOnce();}
+ break;
+ }
+
+ if (type) sawType = type;
+ if (dir > 0 && !moveOnce(!first)) break;
+ }
+ }
+ var result = skipAtomic(doc, Pos(line, ch), pos, origDir, true);
+ if (!cmp(pos, result)) result.hitSide = true;
+ return result;
+ }
+
+ // For relative vertical movement. Dir may be -1 or 1. Unit can be
+ // "page" or "line". The resulting position will have a hitSide=true
+ // property if it reached the end of the document.
+ function findPosV(cm, pos, dir, unit) {
+ var doc = cm.doc, x = pos.left, y;
+ if (unit == "page") {
+ var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
+ y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display));
+ } else if (unit == "line") {
+ y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
+ }
+ for (;;) {
+ var target = coordsChar(cm, x, y);
+ if (!target.outside) break;
+ if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; }
+ y += dir * 5;
+ }
+ return target;
+ }
+
+ // EDITOR METHODS
+
+ // The publicly visible API. Note that methodOp(f) means
+ // 'wrap f in an operation, performed on its `this` parameter'.
+
+ // This is not the complete set of editor methods. Most of the
+ // methods defined on the Doc type are also injected into
+ // CodeMirror.prototype, for backwards compatibility and
+ // convenience.
+
+ CodeMirror.prototype = {
+ constructor: CodeMirror,
+ focus: function(){window.focus(); this.display.input.focus();},
+
+ setOption: function(option, value) {
+ var options = this.options, old = options[option];
+ if (options[option] == value && option != "mode") return;
+ options[option] = value;
+ if (optionHandlers.hasOwnProperty(option))
+ operation(this, optionHandlers[option])(this, value, old);
+ },
+
+ getOption: function(option) {return this.options[option];},
+ getDoc: function() {return this.doc;},
+
+ addKeyMap: function(map, bottom) {
+ this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
+ },
+ removeKeyMap: function(map) {
+ var maps = this.state.keyMaps;
+ for (var i = 0; i < maps.length; ++i)
+ if (maps[i] == map || maps[i].name == map) {
+ maps.splice(i, 1);
+ return true;
+ }
+ },
+
+ addOverlay: methodOp(function(spec, options) {
+ var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
+ if (mode.startState) throw new Error("Overlays may not be stateful.");
+ this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque});
+ this.state.modeGen++;
+ regChange(this);
+ }),
+ removeOverlay: methodOp(function(spec) {
+ var overlays = this.state.overlays;
+ for (var i = 0; i < overlays.length; ++i) {
+ var cur = overlays[i].modeSpec;
+ if (cur == spec || typeof spec == "string" && cur.name == spec) {
+ overlays.splice(i, 1);
+ this.state.modeGen++;
+ regChange(this);
+ return;
+ }
+ }
+ }),
+
+ indentLine: methodOp(function(n, dir, aggressive) {
+ if (typeof dir != "string" && typeof dir != "number") {
+ if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
+ else dir = dir ? "add" : "subtract";
+ }
+ if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);
+ }),
+ indentSelection: methodOp(function(how) {
+ var ranges = this.doc.sel.ranges, end = -1;
+ for (var i = 0; i < ranges.length; i++) {
+ var range = ranges[i];
+ if (!range.empty()) {
+ var from = range.from(), to = range.to();
+ var start = Math.max(end, from.line);
+ end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
+ for (var j = start; j < end; ++j)
+ indentLine(this, j, how);
+ var newRanges = this.doc.sel.ranges;
+ if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
+ replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);
+ } else if (range.head.line > end) {
+ indentLine(this, range.head.line, how, true);
+ end = range.head.line;
+ if (i == this.doc.sel.primIndex) ensureCursorVisible(this);
+ }
+ }
+ }),
+
+ // Fetch the parser token for a given character. Useful for hacks
+ // that want to inspect the mode state (say, for completion).
+ getTokenAt: function(pos, precise) {
+ return takeToken(this, pos, precise);
+ },
+
+ getLineTokens: function(line, precise) {
+ return takeToken(this, Pos(line), precise, true);
+ },
+
+ getTokenTypeAt: function(pos) {
+ pos = clipPos(this.doc, pos);
+ var styles = getLineStyles(this, getLine(this.doc, pos.line));
+ var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
+ var type;
+ if (ch == 0) type = styles[2];
+ else for (;;) {
+ var mid = (before + after) >> 1;
+ if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;
+ else if (styles[mid * 2 + 1] < ch) before = mid + 1;
+ else { type = styles[mid * 2 + 2]; break; }
+ }
+ var cut = type ? type.indexOf("cm-overlay ") : -1;
+ return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1);
+ },
+
+ getModeAt: function(pos) {
+ var mode = this.doc.mode;
+ if (!mode.innerMode) return mode;
+ return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode;
+ },
+
+ getHelper: function(pos, type) {
+ return this.getHelpers(pos, type)[0];
+ },
+
+ getHelpers: function(pos, type) {
+ var found = [];
+ if (!helpers.hasOwnProperty(type)) return found;
+ var help = helpers[type], mode = this.getModeAt(pos);
+ if (typeof mode[type] == "string") {
+ if (help[mode[type]]) found.push(help[mode[type]]);
+ } else if (mode[type]) {
+ for (var i = 0; i < mode[type].length; i++) {
+ var val = help[mode[type][i]];
+ if (val) found.push(val);
+ }
+ } else if (mode.helperType && help[mode.helperType]) {
+ found.push(help[mode.helperType]);
+ } else if (help[mode.name]) {
+ found.push(help[mode.name]);
+ }
+ for (var i = 0; i < help._global.length; i++) {
+ var cur = help._global[i];
+ if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
+ found.push(cur.val);
+ }
+ return found;
+ },
+
+ getStateAfter: function(line, precise) {
+ var doc = this.doc;
+ line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
+ return getStateBefore(this, line + 1, precise);
+ },
+
+ cursorCoords: function(start, mode) {
+ var pos, range = this.doc.sel.primary();
+ if (start == null) pos = range.head;
+ else if (typeof start == "object") pos = clipPos(this.doc, start);
+ else pos = start ? range.from() : range.to();
+ return cursorCoords(this, pos, mode || "page");
+ },
+
+ charCoords: function(pos, mode) {
+ return charCoords(this, clipPos(this.doc, pos), mode || "page");
+ },
+
+ coordsChar: function(coords, mode) {
+ coords = fromCoordSystem(this, coords, mode || "page");
+ return coordsChar(this, coords.left, coords.top);
+ },
+
+ lineAtHeight: function(height, mode) {
+ height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
+ return lineAtHeight(this.doc, height + this.display.viewOffset);
+ },
+ heightAtLine: function(line, mode) {
+ var end = false, lineObj;
+ if (typeof line == "number") {
+ var last = this.doc.first + this.doc.size - 1;
+ if (line < this.doc.first) line = this.doc.first;
+ else if (line > last) { line = last; end = true; }
+ lineObj = getLine(this.doc, line);
+ } else {
+ lineObj = line;
+ }
+ return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top +
+ (end ? this.doc.height - heightAtLine(lineObj) : 0);
+ },
+
+ defaultTextHeight: function() { return textHeight(this.display); },
+ defaultCharWidth: function() { return charWidth(this.display); },
+
+ setGutterMarker: methodOp(function(line, gutterID, value) {
+ return changeLine(this.doc, line, "gutter", function(line) {
+ var markers = line.gutterMarkers || (line.gutterMarkers = {});
+ markers[gutterID] = value;
+ if (!value && isEmpty(markers)) line.gutterMarkers = null;
+ return true;
+ });
+ }),
+
+ clearGutter: methodOp(function(gutterID) {
+ var cm = this, doc = cm.doc, i = doc.first;
+ doc.iter(function(line) {
+ if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
+ line.gutterMarkers[gutterID] = null;
+ regLineChange(cm, i, "gutter");
+ if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
+ }
+ ++i;
+ });
+ }),
+
+ lineInfo: function(line) {
+ if (typeof line == "number") {
+ if (!isLine(this.doc, line)) return null;
+ var n = line;
+ line = getLine(this.doc, line);
+ if (!line) return null;
+ } else {
+ var n = lineNo(line);
+ if (n == null) return null;
+ }
+ return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
+ textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
+ widgets: line.widgets};
+ },
+
+ getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};},
+
+ addWidget: function(pos, node, scroll, vert, horiz) {
+ var display = this.display;
+ pos = cursorCoords(this, clipPos(this.doc, pos));
+ var top = pos.bottom, left = pos.left;
+ node.style.position = "absolute";
+ node.setAttribute("cm-ignore-events", "true");
+ this.display.input.setUneditable(node);
+ display.sizer.appendChild(node);
+ if (vert == "over") {
+ top = pos.top;
+ } else if (vert == "above" || vert == "near") {
+ var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
+ hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
+ // Default to positioning above (if specified and possible); otherwise default to positioning below
+ if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
+ top = pos.top - node.offsetHeight;
+ else if (pos.bottom + node.offsetHeight <= vspace)
+ top = pos.bottom;
+ if (left + node.offsetWidth > hspace)
+ left = hspace - node.offsetWidth;
+ }
+ node.style.top = top + "px";
+ node.style.left = node.style.right = "";
+ if (horiz == "right") {
+ left = display.sizer.clientWidth - node.offsetWidth;
+ node.style.right = "0px";
+ } else {
+ if (horiz == "left") left = 0;
+ else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2;
+ node.style.left = left + "px";
+ }
+ if (scroll)
+ scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight);
+ },
+
+ triggerOnKeyDown: methodOp(onKeyDown),
+ triggerOnKeyPress: methodOp(onKeyPress),
+ triggerOnKeyUp: onKeyUp,
+
+ execCommand: function(cmd) {
+ if (commands.hasOwnProperty(cmd))
+ return commands[cmd].call(null, this);
+ },
+
+ triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),
+
+ findPosH: function(from, amount, unit, visually) {
+ var dir = 1;
+ if (amount < 0) { dir = -1; amount = -amount; }
+ for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
+ cur = findPosH(this.doc, cur, dir, unit, visually);
+ if (cur.hitSide) break;
+ }
+ return cur;
+ },
+
+ moveH: methodOp(function(dir, unit) {
+ var cm = this;
+ cm.extendSelectionsBy(function(range) {
+ if (cm.display.shift || cm.doc.extend || range.empty())
+ return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually);
+ else
+ return dir < 0 ? range.from() : range.to();
+ }, sel_move);
+ }),
+
+ deleteH: methodOp(function(dir, unit) {
+ var sel = this.doc.sel, doc = this.doc;
+ if (sel.somethingSelected())
+ doc.replaceSelection("", null, "+delete");
+ else
+ deleteNearSelection(this, function(range) {
+ var other = findPosH(doc, range.head, dir, unit, false);
+ return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other};
+ });
+ }),
+
+ findPosV: function(from, amount, unit, goalColumn) {
+ var dir = 1, x = goalColumn;
+ if (amount < 0) { dir = -1; amount = -amount; }
+ for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
+ var coords = cursorCoords(this, cur, "div");
+ if (x == null) x = coords.left;
+ else coords.left = x;
+ cur = findPosV(this, coords, dir, unit);
+ if (cur.hitSide) break;
+ }
+ return cur;
+ },
+
+ moveV: methodOp(function(dir, unit) {
+ var cm = this, doc = this.doc, goals = [];
+ var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected();
+ doc.extendSelectionsBy(function(range) {
+ if (collapse)
+ return dir < 0 ? range.from() : range.to();
+ var headPos = cursorCoords(cm, range.head, "div");
+ if (range.goalColumn != null) headPos.left = range.goalColumn;
+ goals.push(headPos.left);
+ var pos = findPosV(cm, headPos, dir, unit);
+ if (unit == "page" && range == doc.sel.primary())
+ addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top);
+ return pos;
+ }, sel_move);
+ if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++)
+ doc.sel.ranges[i].goalColumn = goals[i];
+ }),
+
+ // Find the word at the given position (as returned by coordsChar).
+ findWordAt: function(pos) {
+ var doc = this.doc, line = getLine(doc, pos.line).text;
+ var start = pos.ch, end = pos.ch;
+ if (line) {
+ var helper = this.getHelper(pos, "wordChars");
+ if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end;
+ var startChar = line.charAt(start);
+ var check = isWordChar(startChar, helper)
+ ? function(ch) { return isWordChar(ch, helper); }
+ : /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);}
+ : function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
+ while (start > 0 && check(line.charAt(start - 1))) --start;
+ while (end < line.length && check(line.charAt(end))) ++end;
+ }
+ return new Range(Pos(pos.line, start), Pos(pos.line, end));
+ },
+
+ toggleOverwrite: function(value) {
+ if (value != null && value == this.state.overwrite) return;
+ if (this.state.overwrite = !this.state.overwrite)
+ addClass(this.display.cursorDiv, "CodeMirror-overwrite");
+ else
+ rmClass(this.display.cursorDiv, "CodeMirror-overwrite");
+
+ signal(this, "overwriteToggle", this, this.state.overwrite);
+ },
+ hasFocus: function() { return this.display.input.getField() == activeElt(); },
+ isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit); },
+
+ scrollTo: methodOp(function(x, y) {
+ if (x != null || y != null) resolveScrollToPos(this);
+ if (x != null) this.curOp.scrollLeft = x;
+ if (y != null) this.curOp.scrollTop = y;
+ }),
+ getScrollInfo: function() {
+ var scroller = this.display.scroller;
+ return {left: scroller.scrollLeft, top: scroller.scrollTop,
+ height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
+ width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
+ clientHeight: displayHeight(this), clientWidth: displayWidth(this)};
+ },
+
+ scrollIntoView: methodOp(function(range, margin) {
+ if (range == null) {
+ range = {from: this.doc.sel.primary().head, to: null};
+ if (margin == null) margin = this.options.cursorScrollMargin;
+ } else if (typeof range == "number") {
+ range = {from: Pos(range, 0), to: null};
+ } else if (range.from == null) {
+ range = {from: range, to: null};
+ }
+ if (!range.to) range.to = range.from;
+ range.margin = margin || 0;
+
+ if (range.from.line != null) {
+ resolveScrollToPos(this);
+ this.curOp.scrollToPos = range;
+ } else {
+ var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left),
+ Math.min(range.from.top, range.to.top) - range.margin,
+ Math.max(range.from.right, range.to.right),
+ Math.max(range.from.bottom, range.to.bottom) + range.margin);
+ this.scrollTo(sPos.scrollLeft, sPos.scrollTop);
+ }
+ }),
+
+ setSize: methodOp(function(width, height) {
+ var cm = this;
+ function interpret(val) {
+ return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val;
+ }
+ if (width != null) cm.display.wrapper.style.width = interpret(width);
+ if (height != null) cm.display.wrapper.style.height = interpret(height);
+ if (cm.options.lineWrapping) clearLineMeasurementCache(this);
+ var lineNo = cm.display.viewFrom;
+ cm.doc.iter(lineNo, cm.display.viewTo, function(line) {
+ if (line.widgets) for (var i = 0; i < line.widgets.length; i++)
+ if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; }
+ ++lineNo;
+ });
+ cm.curOp.forceUpdate = true;
+ signal(cm, "refresh", this);
+ }),
+
+ operation: function(f){return runInOp(this, f);},
+
+ refresh: methodOp(function() {
+ var oldHeight = this.display.cachedTextHeight;
+ regChange(this);
+ this.curOp.forceUpdate = true;
+ clearCaches(this);
+ this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop);
+ updateGutterSpace(this);
+ if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
+ estimateLineHeights(this);
+ signal(this, "refresh", this);
+ }),
+
+ swapDoc: methodOp(function(doc) {
+ var old = this.doc;
+ old.cm = null;
+ attachDoc(this, doc);
+ clearCaches(this);
+ this.display.input.reset();
+ this.scrollTo(doc.scrollLeft, doc.scrollTop);
+ this.curOp.forceScroll = true;
+ signalLater(this, "swapDoc", this, old);
+ return old;
+ }),
+
+ getInputField: function(){return this.display.input.getField();},
+ getWrapperElement: function(){return this.display.wrapper;},
+ getScrollerElement: function(){return this.display.scroller;},
+ getGutterElement: function(){return this.display.gutters;}
+ };
+ eventMixin(CodeMirror);
+
+ // OPTION DEFAULTS
+
+ // The default configuration options.
+ var defaults = CodeMirror.defaults = {};
+ // Functions to run when options are changed.
+ var optionHandlers = CodeMirror.optionHandlers = {};
+
+ function option(name, deflt, handle, notOnInit) {
+ CodeMirror.defaults[name] = deflt;
+ if (handle) optionHandlers[name] =
+ notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle;
+ }
+
+ // Passed to option handlers when there is no old value.
+ var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}};
+
+ // These two are, on init, called from the constructor because they
+ // have to be initialized before the editor can start at all.
+ option("value", "", function(cm, val) {
+ cm.setValue(val);
+ }, true);
+ option("mode", null, function(cm, val) {
+ cm.doc.modeOption = val;
+ loadMode(cm);
+ }, true);
+
+ option("indentUnit", 2, loadMode, true);
+ option("indentWithTabs", false);
+ option("smartIndent", true);
+ option("tabSize", 4, function(cm) {
+ resetModeState(cm);
+ clearCaches(cm);
+ regChange(cm);
+ }, true);
+ option("lineSeparator", null, function(cm, val) {
+ cm.doc.lineSep = val;
+ if (!val) return;
+ var newBreaks = [], lineNo = cm.doc.first;
+ cm.doc.iter(function(line) {
+ for (var pos = 0;;) {
+ var found = line.text.indexOf(val, pos);
+ if (found == -1) break;
+ pos = found + val.length;
+ newBreaks.push(Pos(lineNo, found));
+ }
+ lineNo++;
+ });
+ for (var i = newBreaks.length - 1; i >= 0; i--)
+ replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length))
+ });
+ option("specialChars", /[\u0000-\u001f\u007f\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function(cm, val, old) {
+ cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
+ if (old != CodeMirror.Init) cm.refresh();
+ });
+ option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true);
+ option("electricChars", true);
+ option("inputStyle", mobile ? "contenteditable" : "textarea", function() {
+ throw new Error("inputStyle can not (yet) be changed in a running editor"); // FIXME
+ }, true);
+ option("rtlMoveVisually", !windows);
+ option("wholeLineUpdateBefore", true);
+
+ option("theme", "default", function(cm) {
+ themeChanged(cm);
+ guttersChanged(cm);
+ }, true);
+ option("keyMap", "default", function(cm, val, old) {
+ var next = getKeyMap(val);
+ var prev = old != CodeMirror.Init && getKeyMap(old);
+ if (prev && prev.detach) prev.detach(cm, next);
+ if (next.attach) next.attach(cm, prev || null);
+ });
+ option("extraKeys", null);
+
+ option("lineWrapping", false, wrappingChanged, true);
+ option("gutters", [], function(cm) {
+ setGuttersForLineNumbers(cm.options);
+ guttersChanged(cm);
+ }, true);
+ option("fixedGutter", true, function(cm, val) {
+ cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
+ cm.refresh();
+ }, true);
+ option("coverGutterNextToScrollbar", false, function(cm) {updateScrollbars(cm);}, true);
+ option("scrollbarStyle", "native", function(cm) {
+ initScrollbars(cm);
+ updateScrollbars(cm);
+ cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
+ cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
+ }, true);
+ option("lineNumbers", false, function(cm) {
+ setGuttersForLineNumbers(cm.options);
+ guttersChanged(cm);
+ }, true);
+ option("firstLineNumber", 1, guttersChanged, true);
+ option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true);
+ option("showCursorWhenSelecting", false, updateSelection, true);
+
+ option("resetSelectionOnContextMenu", true);
+ option("lineWiseCopyCut", true);
+
+ option("readOnly", false, function(cm, val) {
+ if (val == "nocursor") {
+ onBlur(cm);
+ cm.display.input.blur();
+ cm.display.disabled = true;
+ } else {
+ cm.display.disabled = false;
+ }
+ cm.display.input.readOnlyChanged(val)
+ });
+ option("disableInput", false, function(cm, val) {if (!val) cm.display.input.reset();}, true);
+ option("dragDrop", true, dragDropChanged);
+ option("allowDropFileTypes", null);
+
+ option("cursorBlinkRate", 530);
+ option("cursorScrollMargin", 0);
+ option("cursorHeight", 1, updateSelection, true);
+ option("singleCursorHeightPerLine", true, updateSelection, true);
+ option("workTime", 100);
+ option("workDelay", 100);
+ option("flattenSpans", true, resetModeState, true);
+ option("addModeClass", false, resetModeState, true);
+ option("pollInterval", 100);
+ option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;});
+ option("historyEventDelay", 1250);
+ option("viewportMargin", 10, function(cm){cm.refresh();}, true);
+ option("maxHighlightLength", 10000, resetModeState, true);
+ option("moveInputWithCursor", true, function(cm, val) {
+ if (!val) cm.display.input.resetPosition();
+ });
+
+ option("tabindex", null, function(cm, val) {
+ cm.display.input.getField().tabIndex = val || "";
+ });
+ option("autofocus", null);
+
+ // MODE DEFINITION AND QUERYING
+
+ // Known modes, by name and by MIME
+ var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
+
+ // Extra arguments are stored as the mode's dependencies, which is
+ // used by (legacy) mechanisms like loadmode.js to automatically
+ // load a mode. (Preferred mechanism is the require/define calls.)
+ CodeMirror.defineMode = function(name, mode) {
+ if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
+ if (arguments.length > 2)
+ mode.dependencies = Array.prototype.slice.call(arguments, 2);
+ modes[name] = mode;
+ };
+
+ CodeMirror.defineMIME = function(mime, spec) {
+ mimeModes[mime] = spec;
+ };
+
+ // Given a MIME type, a {name, ...options} config object, or a name
+ // string, return a mode config object.
+ CodeMirror.resolveMode = function(spec) {
+ if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+ spec = mimeModes[spec];
+ } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
+ var found = mimeModes[spec.name];
+ if (typeof found == "string") found = {name: found};
+ spec = createObj(found, spec);
+ spec.name = found.name;
+ } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
+ return CodeMirror.resolveMode("application/xml");
+ }
+ if (typeof spec == "string") return {name: spec};
+ else return spec || {name: "null"};
+ };
+
+ // Given a mode spec (anything that resolveMode accepts), find and
+ // initialize an actual mode object.
+ CodeMirror.getMode = function(options, spec) {
+ var spec = CodeMirror.resolveMode(spec);
+ var mfactory = modes[spec.name];
+ if (!mfactory) return CodeMirror.getMode(options, "text/plain");
+ var modeObj = mfactory(options, spec);
+ if (modeExtensions.hasOwnProperty(spec.name)) {
+ var exts = modeExtensions[spec.name];
+ for (var prop in exts) {
+ if (!exts.hasOwnProperty(prop)) continue;
+ if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
+ modeObj[prop] = exts[prop];
+ }
+ }
+ modeObj.name = spec.name;
+ if (spec.helperType) modeObj.helperType = spec.helperType;
+ if (spec.modeProps) for (var prop in spec.modeProps)
+ modeObj[prop] = spec.modeProps[prop];
+
+ return modeObj;
+ };
+
+ // Minimal default mode.
+ CodeMirror.defineMode("null", function() {
+ return {token: function(stream) {stream.skipToEnd();}};
+ });
+ CodeMirror.defineMIME("text/plain", "null");
+
+ // This can be used to attach properties to mode objects from
+ // outside the actual mode definition.
+ var modeExtensions = CodeMirror.modeExtensions = {};
+ CodeMirror.extendMode = function(mode, properties) {
+ var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
+ copyObj(properties, exts);
+ };
+
+ // EXTENSIONS
+
+ CodeMirror.defineExtension = function(name, func) {
+ CodeMirror.prototype[name] = func;
+ };
+ CodeMirror.defineDocExtension = function(name, func) {
+ Doc.prototype[name] = func;
+ };
+ CodeMirror.defineOption = option;
+
+ var initHooks = [];
+ CodeMirror.defineInitHook = function(f) {initHooks.push(f);};
+
+ var helpers = CodeMirror.helpers = {};
+ CodeMirror.registerHelper = function(type, name, value) {
+ if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []};
+ helpers[type][name] = value;
+ };
+ CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
+ CodeMirror.registerHelper(type, name, value);
+ helpers[type]._global.push({pred: predicate, val: value});
+ };
+
+ // MODE STATE HANDLING
+
+ // Utility functions for working with state. Exported because nested
+ // modes need to do this for their inner modes.
+
+ var copyState = CodeMirror.copyState = function(mode, state) {
+ if (state === true) return state;
+ if (mode.copyState) return mode.copyState(state);
+ var nstate = {};
+ for (var n in state) {
+ var val = state[n];
+ if (val instanceof Array) val = val.concat([]);
+ nstate[n] = val;
+ }
+ return nstate;
+ };
+
+ var startState = CodeMirror.startState = function(mode, a1, a2) {
+ return mode.startState ? mode.startState(a1, a2) : true;
+ };
+
+ // Given a mode and a state (for that mode), find the inner mode and
+ // state at the position that the state refers to.
+ CodeMirror.innerMode = function(mode, state) {
+ while (mode.innerMode) {
+ var info = mode.innerMode(state);
+ if (!info || info.mode == mode) break;
+ state = info.state;
+ mode = info.mode;
+ }
+ return info || {mode: mode, state: state};
+ };
+
+ // STANDARD COMMANDS
+
+ // Commands are parameter-less actions that can be performed on an
+ // editor, mostly used for keybindings.
+ var commands = CodeMirror.commands = {
+ selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);},
+ singleSelection: function(cm) {
+ cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll);
+ },
+ killLine: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ if (range.empty()) {
+ var len = getLine(cm.doc, range.head.line).text.length;
+ if (range.head.ch == len && range.head.line < cm.lastLine())
+ return {from: range.head, to: Pos(range.head.line + 1, 0)};
+ else
+ return {from: range.head, to: Pos(range.head.line, len)};
+ } else {
+ return {from: range.from(), to: range.to()};
+ }
+ });
+ },
+ deleteLine: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ return {from: Pos(range.from().line, 0),
+ to: clipPos(cm.doc, Pos(range.to().line + 1, 0))};
+ });
+ },
+ delLineLeft: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ return {from: Pos(range.from().line, 0), to: range.from()};
+ });
+ },
+ delWrappedLineLeft: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var leftPos = cm.coordsChar({left: 0, top: top}, "div");
+ return {from: leftPos, to: range.from()};
+ });
+ },
+ delWrappedLineRight: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
+ return {from: range.from(), to: rightPos };
+ });
+ },
+ undo: function(cm) {cm.undo();},
+ redo: function(cm) {cm.redo();},
+ undoSelection: function(cm) {cm.undoSelection();},
+ redoSelection: function(cm) {cm.redoSelection();},
+ goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));},
+ goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));},
+ goLineStart: function(cm) {
+ cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); },
+ {origin: "+move", bias: 1});
+ },
+ goLineStartSmart: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ return lineStartSmart(cm, range.head);
+ }, {origin: "+move", bias: 1});
+ },
+ goLineEnd: function(cm) {
+ cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); },
+ {origin: "+move", bias: -1});
+ },
+ goLineRight: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
+ }, sel_move);
+ },
+ goLineLeft: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ return cm.coordsChar({left: 0, top: top}, "div");
+ }, sel_move);
+ },
+ goLineLeftSmart: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var pos = cm.coordsChar({left: 0, top: top}, "div");
+ if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head);
+ return pos;
+ }, sel_move);
+ },
+ goLineUp: function(cm) {cm.moveV(-1, "line");},
+ goLineDown: function(cm) {cm.moveV(1, "line");},
+ goPageUp: function(cm) {cm.moveV(-1, "page");},
+ goPageDown: function(cm) {cm.moveV(1, "page");},
+ goCharLeft: function(cm) {cm.moveH(-1, "char");},
+ goCharRight: function(cm) {cm.moveH(1, "char");},
+ goColumnLeft: function(cm) {cm.moveH(-1, "column");},
+ goColumnRight: function(cm) {cm.moveH(1, "column");},
+ goWordLeft: function(cm) {cm.moveH(-1, "word");},
+ goGroupRight: function(cm) {cm.moveH(1, "group");},
+ goGroupLeft: function(cm) {cm.moveH(-1, "group");},
+ goWordRight: function(cm) {cm.moveH(1, "word");},
+ delCharBefore: function(cm) {cm.deleteH(-1, "char");},
+ delCharAfter: function(cm) {cm.deleteH(1, "char");},
+ delWordBefore: function(cm) {cm.deleteH(-1, "word");},
+ delWordAfter: function(cm) {cm.deleteH(1, "word");},
+ delGroupBefore: function(cm) {cm.deleteH(-1, "group");},
+ delGroupAfter: function(cm) {cm.deleteH(1, "group");},
+ indentAuto: function(cm) {cm.indentSelection("smart");},
+ indentMore: function(cm) {cm.indentSelection("add");},
+ indentLess: function(cm) {cm.indentSelection("subtract");},
+ insertTab: function(cm) {cm.replaceSelection("\t");},
+ insertSoftTab: function(cm) {
+ var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
+ for (var i = 0; i < ranges.length; i++) {
+ var pos = ranges[i].from();
+ var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
+ spaces.push(spaceStr(tabSize - col % tabSize));
+ }
+ cm.replaceSelections(spaces);
+ },
+ defaultTab: function(cm) {
+ if (cm.somethingSelected()) cm.indentSelection("add");
+ else cm.execCommand("insertTab");
+ },
+ transposeChars: function(cm) {
+ runInOp(cm, function() {
+ var ranges = cm.listSelections(), newSel = [];
+ for (var i = 0; i < ranges.length; i++) {
+ var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
+ if (line) {
+ if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1);
+ if (cur.ch > 0) {
+ cur = new Pos(cur.line, cur.ch + 1);
+ cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
+ Pos(cur.line, cur.ch - 2), cur, "+transpose");
+ } else if (cur.line > cm.doc.first) {
+ var prev = getLine(cm.doc, cur.line - 1).text;
+ if (prev)
+ cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
+ prev.charAt(prev.length - 1),
+ Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose");
+ }
+ }
+ newSel.push(new Range(cur, cur));
+ }
+ cm.setSelections(newSel);
+ });
+ },
+ newlineAndIndent: function(cm) {
+ runInOp(cm, function() {
+ var len = cm.listSelections().length;
+ for (var i = 0; i < len; i++) {
+ var range = cm.listSelections()[i];
+ cm.replaceRange(cm.doc.lineSeparator(), range.anchor, range.head, "+input");
+ cm.indentLine(range.from().line + 1, null, true);
+ }
+ ensureCursorVisible(cm);
+ });
+ },
+ openLine: function(cm) {cm.replaceSelection("\n", "start")},
+ toggleOverwrite: function(cm) {cm.toggleOverwrite();}
+ };
+
+
+ // STANDARD KEYMAPS
+
+ var keyMap = CodeMirror.keyMap = {};
+
+ keyMap.basic = {
+ "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
+ "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
+ "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
+ "Tab": "defaultTab", "Shift-Tab": "indentAuto",
+ "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
+ "Esc": "singleSelection"
+ };
+ // Note that the save and find-related commands aren't defined by
+ // default. User code or addons can define them. Unknown commands
+ // are simply ignored.
+ keyMap.pcDefault = {
+ "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
+ "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
+ "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
+ "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
+ "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
+ "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
+ "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
+ fallthrough: "basic"
+ };
+ // Very basic readline/emacs-style bindings, which are standard on Mac.
+ keyMap.emacsy = {
+ "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
+ "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+ "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
+ "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
+ "Ctrl-O": "openLine"
+ };
+ keyMap.macDefault = {
+ "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
+ "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
+ "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
+ "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
+ "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
+ "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
+ "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
+ fallthrough: ["basic", "emacsy"]
+ };
+ keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
+
+ // KEYMAP DISPATCH
+
+ function normalizeKeyName(name) {
+ var parts = name.split(/-(?!$)/), name = parts[parts.length - 1];
+ var alt, ctrl, shift, cmd;
+ for (var i = 0; i < parts.length - 1; i++) {
+ var mod = parts[i];
+ if (/^(cmd|meta|m)$/i.test(mod)) cmd = true;
+ else if (/^a(lt)?$/i.test(mod)) alt = true;
+ else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true;
+ else if (/^s(hift)$/i.test(mod)) shift = true;
+ else throw new Error("Unrecognized modifier name: " + mod);
+ }
+ if (alt) name = "Alt-" + name;
+ if (ctrl) name = "Ctrl-" + name;
+ if (cmd) name = "Cmd-" + name;
+ if (shift) name = "Shift-" + name;
+ return name;
+ }
+
+ // This is a kludge to keep keymaps mostly working as raw objects
+ // (backwards compatibility) while at the same time support features
+ // like normalization and multi-stroke key bindings. It compiles a
+ // new normalized keymap, and then updates the old object to reflect
+ // this.
+ CodeMirror.normalizeKeyMap = function(keymap) {
+ var copy = {};
+ for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) {
+ var value = keymap[keyname];
+ if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue;
+ if (value == "...") { delete keymap[keyname]; continue; }
+
+ var keys = map(keyname.split(" "), normalizeKeyName);
+ for (var i = 0; i < keys.length; i++) {
+ var val, name;
+ if (i == keys.length - 1) {
+ name = keys.join(" ");
+ val = value;
+ } else {
+ name = keys.slice(0, i + 1).join(" ");
+ val = "...";
+ }
+ var prev = copy[name];
+ if (!prev) copy[name] = val;
+ else if (prev != val) throw new Error("Inconsistent bindings for " + name);
+ }
+ delete keymap[keyname];
+ }
+ for (var prop in copy) keymap[prop] = copy[prop];
+ return keymap;
+ };
+
+ var lookupKey = CodeMirror.lookupKey = function(key, map, handle, context) {
+ map = getKeyMap(map);
+ var found = map.call ? map.call(key, context) : map[key];
+ if (found === false) return "nothing";
+ if (found === "...") return "multi";
+ if (found != null && handle(found)) return "handled";
+
+ if (map.fallthrough) {
+ if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
+ return lookupKey(key, map.fallthrough, handle, context);
+ for (var i = 0; i < map.fallthrough.length; i++) {
+ var result = lookupKey(key, map.fallthrough[i], handle, context);
+ if (result) return result;
+ }
+ }
+ };
+
+ // Modifier key presses don't count as 'real' key presses for the
+ // purpose of keymap fallthrough.
+ var isModifierKey = CodeMirror.isModifierKey = function(value) {
+ var name = typeof value == "string" ? value : keyNames[value.keyCode];
+ return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
+ };
+
+ // Look up the name of a key as indicated by an event object.
+ var keyName = CodeMirror.keyName = function(event, noShift) {
+ if (presto && event.keyCode == 34 && event["char"]) return false;
+ var base = keyNames[event.keyCode], name = base;
+ if (name == null || event.altGraphKey) return false;
+ if (event.altKey && base != "Alt") name = "Alt-" + name;
+ if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name;
+ if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name;
+ if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name;
+ return name;
+ };
+
+ function getKeyMap(val) {
+ return typeof val == "string" ? keyMap[val] : val;
+ }
+
+ // FROMTEXTAREA
+
+ CodeMirror.fromTextArea = function(textarea, options) {
+ options = options ? copyObj(options) : {};
+ options.value = textarea.value;
+ if (!options.tabindex && textarea.tabIndex)
+ options.tabindex = textarea.tabIndex;
+ if (!options.placeholder && textarea.placeholder)
+ options.placeholder = textarea.placeholder;
+ // Set autofocus to true if this textarea is focused, or if it has
+ // autofocus and no other element is focused.
+ if (options.autofocus == null) {
+ var hasFocus = activeElt();
+ options.autofocus = hasFocus == textarea ||
+ textarea.getAttribute("autofocus") != null && hasFocus == document.body;
+ }
+
+ function save() {textarea.value = cm.getValue();}
+ if (textarea.form) {
+ on(textarea.form, "submit", save);
+ // Deplorable hack to make the submit method do the right thing.
+ if (!options.leaveSubmitMethodAlone) {
+ var form = textarea.form, realSubmit = form.submit;
+ try {
+ var wrappedSubmit = form.submit = function() {
+ save();
+ form.submit = realSubmit;
+ form.submit();
+ form.submit = wrappedSubmit;
+ };
+ } catch(e) {}
+ }
+ }
+
+ options.finishInit = function(cm) {
+ cm.save = save;
+ cm.getTextArea = function() { return textarea; };
+ cm.toTextArea = function() {
+ cm.toTextArea = isNaN; // Prevent this from being ran twice
+ save();
+ textarea.parentNode.removeChild(cm.getWrapperElement());
+ textarea.style.display = "";
+ if (textarea.form) {
+ off(textarea.form, "submit", save);
+ if (typeof textarea.form.submit == "function")
+ textarea.form.submit = realSubmit;
+ }
+ };
+ };
+
+ textarea.style.display = "none";
+ var cm = CodeMirror(function(node) {
+ textarea.parentNode.insertBefore(node, textarea.nextSibling);
+ }, options);
+ return cm;
+ };
+
+ // STRING STREAM
+
+ // Fed to the mode parsers, provides helper functions to make
+ // parsers more succinct.
+
+ var StringStream = CodeMirror.StringStream = function(string, tabSize) {
+ this.pos = this.start = 0;
+ this.string = string;
+ this.tabSize = tabSize || 8;
+ this.lastColumnPos = this.lastColumnValue = 0;
+ this.lineStart = 0;
+ };
+
+ StringStream.prototype = {
+ eol: function() {return this.pos >= this.string.length;},
+ sol: function() {return this.pos == this.lineStart;},
+ peek: function() {return this.string.charAt(this.pos) || undefined;},
+ next: function() {
+ if (this.pos < this.string.length)
+ return this.string.charAt(this.pos++);
+ },
+ eat: function(match) {
+ var ch = this.string.charAt(this.pos);
+ if (typeof match == "string") var ok = ch == match;
+ else var ok = ch && (match.test ? match.test(ch) : match(ch));
+ if (ok) {++this.pos; return ch;}
+ },
+ eatWhile: function(match) {
+ var start = this.pos;
+ while (this.eat(match)){}
+ return this.pos > start;
+ },
+ eatSpace: function() {
+ var start = this.pos;
+ while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
+ return this.pos > start;
+ },
+ skipToEnd: function() {this.pos = this.string.length;},
+ skipTo: function(ch) {
+ var found = this.string.indexOf(ch, this.pos);
+ if (found > -1) {this.pos = found; return true;}
+ },
+ backUp: function(n) {this.pos -= n;},
+ column: function() {
+ if (this.lastColumnPos < this.start) {
+ this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
+ this.lastColumnPos = this.start;
+ }
+ return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
+ },
+ indentation: function() {
+ return countColumn(this.string, null, this.tabSize) -
+ (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
+ },
+ match: function(pattern, consume, caseInsensitive) {
+ if (typeof pattern == "string") {
+ var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
+ var substr = this.string.substr(this.pos, pattern.length);
+ if (cased(substr) == cased(pattern)) {
+ if (consume !== false) this.pos += pattern.length;
+ return true;
+ }
+ } else {
+ var match = this.string.slice(this.pos).match(pattern);
+ if (match && match.index > 0) return null;
+ if (match && consume !== false) this.pos += match[0].length;
+ return match;
+ }
+ },
+ current: function(){return this.string.slice(this.start, this.pos);},
+ hideFirstChars: function(n, inner) {
+ this.lineStart += n;
+ try { return inner(); }
+ finally { this.lineStart -= n; }
+ }
+ };
+
+ // TEXTMARKERS
+
+ // Created with markText and setBookmark methods. A TextMarker is a
+ // handle that can be used to clear or find a marked position in the
+ // document. Line objects hold arrays (markedSpans) containing
+ // {from, to, marker} object pointing to such marker objects, and
+ // indicating that such a marker is present on that line. Multiple
+ // lines may point to the same marker when it spans across lines.
+ // The spans will have null for their from/to properties when the
+ // marker continues beyond the start/end of the line. Markers have
+ // links back to the lines they currently touch.
+
+ var nextMarkerId = 0;
+
+ var TextMarker = CodeMirror.TextMarker = function(doc, type) {
+ this.lines = [];
+ this.type = type;
+ this.doc = doc;
+ this.id = ++nextMarkerId;
+ };
+ eventMixin(TextMarker);
+
+ // Clear the marker.
+ TextMarker.prototype.clear = function() {
+ if (this.explicitlyCleared) return;
+ var cm = this.doc.cm, withOp = cm && !cm.curOp;
+ if (withOp) startOperation(cm);
+ if (hasHandler(this, "clear")) {
+ var found = this.find();
+ if (found) signalLater(this, "clear", found.from, found.to);
+ }
+ var min = null, max = null;
+ for (var i = 0; i < this.lines.length; ++i) {
+ var line = this.lines[i];
+ var span = getMarkedSpanFor(line.markedSpans, this);
+ if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text");
+ else if (cm) {
+ if (span.to != null) max = lineNo(line);
+ if (span.from != null) min = lineNo(line);
+ }
+ line.markedSpans = removeMarkedSpan(line.markedSpans, span);
+ if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
+ updateLineHeight(line, textHeight(cm.display));
+ }
+ if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) {
+ var visual = visualLine(this.lines[i]), len = lineLength(visual);
+ if (len > cm.display.maxLineLength) {
+ cm.display.maxLine = visual;
+ cm.display.maxLineLength = len;
+ cm.display.maxLineChanged = true;
+ }
+ }
+
+ if (min != null && cm && this.collapsed) regChange(cm, min, max + 1);
+ this.lines.length = 0;
+ this.explicitlyCleared = true;
+ if (this.atomic && this.doc.cantEdit) {
+ this.doc.cantEdit = false;
+ if (cm) reCheckSelection(cm.doc);
+ }
+ if (cm) signalLater(cm, "markerCleared", cm, this);
+ if (withOp) endOperation(cm);
+ if (this.parent) this.parent.clear();
+ };
+
+ // Find the position of the marker in the document. Returns a {from,
+ // to} object by default. Side can be passed to get a specific side
+ // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
+ // Pos objects returned contain a line object, rather than a line
+ // number (used to prevent looking up the same line twice).
+ TextMarker.prototype.find = function(side, lineObj) {
+ if (side == null && this.type == "bookmark") side = 1;
+ var from, to;
+ for (var i = 0; i < this.lines.length; ++i) {
+ var line = this.lines[i];
+ var span = getMarkedSpanFor(line.markedSpans, this);
+ if (span.from != null) {
+ from = Pos(lineObj ? line : lineNo(line), span.from);
+ if (side == -1) return from;
+ }
+ if (span.to != null) {
+ to = Pos(lineObj ? line : lineNo(line), span.to);
+ if (side == 1) return to;
+ }
+ }
+ return from && {from: from, to: to};
+ };
+
+ // Signals that the marker's widget changed, and surrounding layout
+ // should be recomputed.
+ TextMarker.prototype.changed = function() {
+ var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
+ if (!pos || !cm) return;
+ runInOp(cm, function() {
+ var line = pos.line, lineN = lineNo(pos.line);
+ var view = findViewForLine(cm, lineN);
+ if (view) {
+ clearLineMeasurementCacheFor(view);
+ cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
+ }
+ cm.curOp.updateMaxLine = true;
+ if (!lineIsHidden(widget.doc, line) && widget.height != null) {
+ var oldHeight = widget.height;
+ widget.height = null;
+ var dHeight = widgetHeight(widget) - oldHeight;
+ if (dHeight)
+ updateLineHeight(line, line.height + dHeight);
+ }
+ });
+ };
+
+ TextMarker.prototype.attachLine = function(line) {
+ if (!this.lines.length && this.doc.cm) {
+ var op = this.doc.cm.curOp;
+ if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
+ (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);
+ }
+ this.lines.push(line);
+ };
+ TextMarker.prototype.detachLine = function(line) {
+ this.lines.splice(indexOf(this.lines, line), 1);
+ if (!this.lines.length && this.doc.cm) {
+ var op = this.doc.cm.curOp;
+ (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
+ }
+ };
+
+ // Collapsed markers have unique ids, in order to be able to order
+ // them, which is needed for uniquely determining an outer marker
+ // when they overlap (they may nest, but not partially overlap).
+ var nextMarkerId = 0;
+
+ // Create a marker, wire it up to the right lines, and
+ function markText(doc, from, to, options, type) {
+ // Shared markers (across linked documents) are handled separately
+ // (markTextShared will call out to this again, once per
+ // document).
+ if (options && options.shared) return markTextShared(doc, from, to, options, type);
+ // Ensure we are in an operation.
+ if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type);
+
+ var marker = new TextMarker(doc, type), diff = cmp(from, to);
+ if (options) copyObj(options, marker, false);
+ // Don't connect empty markers unless clearWhenEmpty is false
+ if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
+ return marker;
+ if (marker.replacedWith) {
+ // Showing up as a widget implies collapsed (widget replaces text)
+ marker.collapsed = true;
+ marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget");
+ if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true");
+ if (options.insertLeft) marker.widgetNode.insertLeft = true;
+ }
+ if (marker.collapsed) {
+ if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
+ from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
+ throw new Error("Inserting collapsed marker partially overlapping an existing one");
+ sawCollapsedSpans = true;
+ }
+
+ if (marker.addToHistory)
+ addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN);
+
+ var curLine = from.line, cm = doc.cm, updateMaxLine;
+ doc.iter(curLine, to.line + 1, function(line) {
+ if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
+ updateMaxLine = true;
+ if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0);
+ addMarkedSpan(line, new MarkedSpan(marker,
+ curLine == from.line ? from.ch : null,
+ curLine == to.line ? to.ch : null));
+ ++curLine;
+ });
+ // lineIsHidden depends on the presence of the spans, so needs a second pass
+ if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) {
+ if (lineIsHidden(doc, line)) updateLineHeight(line, 0);
+ });
+
+ if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); });
+
+ if (marker.readOnly) {
+ sawReadOnlySpans = true;
+ if (doc.history.done.length || doc.history.undone.length)
+ doc.clearHistory();
+ }
+ if (marker.collapsed) {
+ marker.id = ++nextMarkerId;
+ marker.atomic = true;
+ }
+ if (cm) {
+ // Sync editor state
+ if (updateMaxLine) cm.curOp.updateMaxLine = true;
+ if (marker.collapsed)
+ regChange(cm, from.line, to.line + 1);
+ else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
+ for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text");
+ if (marker.atomic) reCheckSelection(cm.doc);
+ signalLater(cm, "markerAdded", cm, marker);
+ }
+ return marker;
+ }
+
+ // SHARED TEXTMARKERS
+
+ // A shared marker spans multiple linked documents. It is
+ // implemented as a meta-marker-object controlling multiple normal
+ // markers.
+ var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) {
+ this.markers = markers;
+ this.primary = primary;
+ for (var i = 0; i < markers.length; ++i)
+ markers[i].parent = this;
+ };
+ eventMixin(SharedTextMarker);
+
+ SharedTextMarker.prototype.clear = function() {
+ if (this.explicitlyCleared) return;
+ this.explicitlyCleared = true;
+ for (var i = 0; i < this.markers.length; ++i)
+ this.markers[i].clear();
+ signalLater(this, "clear");
+ };
+ SharedTextMarker.prototype.find = function(side, lineObj) {
+ return this.primary.find(side, lineObj);
+ };
+
+ function markTextShared(doc, from, to, options, type) {
+ options = copyObj(options);
+ options.shared = false;
+ var markers = [markText(doc, from, to, options, type)], primary = markers[0];
+ var widget = options.widgetNode;
+ linkedDocs(doc, function(doc) {
+ if (widget) options.widgetNode = widget.cloneNode(true);
+ markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
+ for (var i = 0; i < doc.linked.length; ++i)
+ if (doc.linked[i].isParent) return;
+ primary = lst(markers);
+ });
+ return new SharedTextMarker(markers, primary);
+ }
+
+ function findSharedMarkers(doc) {
+ return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())),
+ function(m) { return m.parent; });
+ }
+
+ function copySharedMarkers(doc, markers) {
+ for (var i = 0; i < markers.length; i++) {
+ var marker = markers[i], pos = marker.find();
+ var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
+ if (cmp(mFrom, mTo)) {
+ var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
+ marker.markers.push(subMark);
+ subMark.parent = marker;
+ }
+ }
+ }
+
+ function detachSharedMarkers(markers) {
+ for (var i = 0; i < markers.length; i++) {
+ var marker = markers[i], linked = [marker.primary.doc];;
+ linkedDocs(marker.primary.doc, function(d) { linked.push(d); });
+ for (var j = 0; j < marker.markers.length; j++) {
+ var subMarker = marker.markers[j];
+ if (indexOf(linked, subMarker.doc) == -1) {
+ subMarker.parent = null;
+ marker.markers.splice(j--, 1);
+ }
+ }
+ }
+ }
+
+ // TEXTMARKER SPANS
+
+ function MarkedSpan(marker, from, to) {
+ this.marker = marker;
+ this.from = from; this.to = to;
+ }
+
+ // Search an array of spans for a span matching the given marker.
+ function getMarkedSpanFor(spans, marker) {
+ if (spans) for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if (span.marker == marker) return span;
+ }
+ }
+ // Remove a span from an array, returning undefined if no spans are
+ // left (we don't store arrays for lines without spans).
+ function removeMarkedSpan(spans, span) {
+ for (var r, i = 0; i < spans.length; ++i)
+ if (spans[i] != span) (r || (r = [])).push(spans[i]);
+ return r;
+ }
+ // Add a span to a line.
+ function addMarkedSpan(line, span) {
+ line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
+ span.marker.attachLine(line);
+ }
+
+ // Used for the algorithm that adjusts markers for a change in the
+ // document. These functions cut an array of spans at a given
+ // character position, returning an array of remaining chunks (or
+ // undefined if nothing remains).
+ function markedSpansBefore(old, startCh, isInsert) {
+ if (old) for (var i = 0, nw; i < old.length; ++i) {
+ var span = old[i], marker = span.marker;
+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
+ if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
+ (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
+ }
+ }
+ return nw;
+ }
+ function markedSpansAfter(old, endCh, isInsert) {
+ if (old) for (var i = 0, nw; i < old.length; ++i) {
+ var span = old[i], marker = span.marker;
+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
+ if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
+ (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
+ span.to == null ? null : span.to - endCh));
+ }
+ }
+ return nw;
+ }
+
+ // Given a change object, compute the new set of marker spans that
+ // cover the line in which the change took place. Removes spans
+ // entirely within the change, reconnects spans belonging to the
+ // same marker that appear on both sides of the change, and cuts off
+ // spans partially within the change. Returns an array of span
+ // arrays with one element for each line in (after) the change.
+ function stretchSpansOverChange(doc, change) {
+ if (change.full) return null;
+ var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
+ var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
+ if (!oldFirst && !oldLast) return null;
+
+ var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
+ // Get the spans that 'stick out' on both sides
+ var first = markedSpansBefore(oldFirst, startCh, isInsert);
+ var last = markedSpansAfter(oldLast, endCh, isInsert);
+
+ // Next, merge those two ends
+ var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
+ if (first) {
+ // Fix up .to properties of first
+ for (var i = 0; i < first.length; ++i) {
+ var span = first[i];
+ if (span.to == null) {
+ var found = getMarkedSpanFor(last, span.marker);
+ if (!found) span.to = startCh;
+ else if (sameLine) span.to = found.to == null ? null : found.to + offset;
+ }
+ }
+ }
+ if (last) {
+ // Fix up .from in last (or move them into first in case of sameLine)
+ for (var i = 0; i < last.length; ++i) {
+ var span = last[i];
+ if (span.to != null) span.to += offset;
+ if (span.from == null) {
+ var found = getMarkedSpanFor(first, span.marker);
+ if (!found) {
+ span.from = offset;
+ if (sameLine) (first || (first = [])).push(span);
+ }
+ } else {
+ span.from += offset;
+ if (sameLine) (first || (first = [])).push(span);
+ }
+ }
+ }
+ // Make sure we didn't create any zero-length spans
+ if (first) first = clearEmptySpans(first);
+ if (last && last != first) last = clearEmptySpans(last);
+
+ var newMarkers = [first];
+ if (!sameLine) {
+ // Fill gap with whole-line-spans
+ var gap = change.text.length - 2, gapMarkers;
+ if (gap > 0 && first)
+ for (var i = 0; i < first.length; ++i)
+ if (first[i].to == null)
+ (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null));
+ for (var i = 0; i < gap; ++i)
+ newMarkers.push(gapMarkers);
+ newMarkers.push(last);
+ }
+ return newMarkers;
+ }
+
+ // Remove spans that are empty and don't have a clearWhenEmpty
+ // option of false.
+ function clearEmptySpans(spans) {
+ for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
+ spans.splice(i--, 1);
+ }
+ if (!spans.length) return null;
+ return spans;
+ }
+
+ // Used for un/re-doing changes from the history. Combines the
+ // result of computing the existing spans with the set of spans that
+ // existed in the history (so that deleting around a span and then
+ // undoing brings back the span).
+ function mergeOldSpans(doc, change) {
+ var old = getOldSpans(doc, change);
+ var stretched = stretchSpansOverChange(doc, change);
+ if (!old) return stretched;
+ if (!stretched) return old;
+
+ for (var i = 0; i < old.length; ++i) {
+ var oldCur = old[i], stretchCur = stretched[i];
+ if (oldCur && stretchCur) {
+ spans: for (var j = 0; j < stretchCur.length; ++j) {
+ var span = stretchCur[j];
+ for (var k = 0; k < oldCur.length; ++k)
+ if (oldCur[k].marker == span.marker) continue spans;
+ oldCur.push(span);
+ }
+ } else if (stretchCur) {
+ old[i] = stretchCur;
+ }
+ }
+ return old;
+ }
+
+ // Used to 'clip' out readOnly ranges when making a change.
+ function removeReadOnlyRanges(doc, from, to) {
+ var markers = null;
+ doc.iter(from.line, to.line + 1, function(line) {
+ if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
+ var mark = line.markedSpans[i].marker;
+ if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
+ (markers || (markers = [])).push(mark);
+ }
+ });
+ if (!markers) return null;
+ var parts = [{from: from, to: to}];
+ for (var i = 0; i < markers.length; ++i) {
+ var mk = markers[i], m = mk.find(0);
+ for (var j = 0; j < parts.length; ++j) {
+ var p = parts[j];
+ if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue;
+ var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
+ if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
+ newParts.push({from: p.from, to: m.from});
+ if (dto > 0 || !mk.inclusiveRight && !dto)
+ newParts.push({from: m.to, to: p.to});
+ parts.splice.apply(parts, newParts);
+ j += newParts.length - 1;
+ }
+ }
+ return parts;
+ }
+
+ // Connect or disconnect spans from a line.
+ function detachMarkedSpans(line) {
+ var spans = line.markedSpans;
+ if (!spans) return;
+ for (var i = 0; i < spans.length; ++i)
+ spans[i].marker.detachLine(line);
+ line.markedSpans = null;
+ }
+ function attachMarkedSpans(line, spans) {
+ if (!spans) return;
+ for (var i = 0; i < spans.length; ++i)
+ spans[i].marker.attachLine(line);
+ line.markedSpans = spans;
+ }
+
+ // Helpers used when computing which overlapping collapsed span
+ // counts as the larger one.
+ function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; }
+ function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; }
+
+ // Returns a number indicating which of two overlapping collapsed
+ // spans is larger (and thus includes the other). Falls back to
+ // comparing ids when the spans cover exactly the same range.
+ function compareCollapsedMarkers(a, b) {
+ var lenDiff = a.lines.length - b.lines.length;
+ if (lenDiff != 0) return lenDiff;
+ var aPos = a.find(), bPos = b.find();
+ var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
+ if (fromCmp) return -fromCmp;
+ var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
+ if (toCmp) return toCmp;
+ return b.id - a.id;
+ }
+
+ // Find out whether a line ends or starts in a collapsed span. If
+ // so, return the marker for that span.
+ function collapsedSpanAtSide(line, start) {
+ var sps = sawCollapsedSpans && line.markedSpans, found;
+ if (sps) for (var sp, i = 0; i < sps.length; ++i) {
+ sp = sps[i];
+ if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
+ (!found || compareCollapsedMarkers(found, sp.marker) < 0))
+ found = sp.marker;
+ }
+ return found;
+ }
+ function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); }
+ function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); }
+
+ // Test whether there exists a collapsed span that partially
+ // overlaps (covers the start or end, but not both) of a new span.
+ // Such overlap is not allowed.
+ function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
+ var line = getLine(doc, lineNo);
+ var sps = sawCollapsedSpans && line.markedSpans;
+ if (sps) for (var i = 0; i < sps.length; ++i) {
+ var sp = sps[i];
+ if (!sp.marker.collapsed) continue;
+ var found = sp.marker.find(0);
+ var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
+ var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
+ if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue;
+ if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
+ fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
+ return true;
+ }
+ }
+
+ // A visual line is a line as drawn on the screen. Folding, for
+ // example, can cause multiple logical lines to appear on the same
+ // visual line. This finds the start of the visual line that the
+ // given line is part of (usually that is the line itself).
+ function visualLine(line) {
+ var merged;
+ while (merged = collapsedSpanAtStart(line))
+ line = merged.find(-1, true).line;
+ return line;
+ }
+
+ // Returns an array of logical lines that continue the visual line
+ // started by the argument, or undefined if there are no such lines.
+ function visualLineContinued(line) {
+ var merged, lines;
+ while (merged = collapsedSpanAtEnd(line)) {
+ line = merged.find(1, true).line;
+ (lines || (lines = [])).push(line);
+ }
+ return lines;
+ }
+
+ // Get the line number of the start of the visual line that the
+ // given line number is part of.
+ function visualLineNo(doc, lineN) {
+ var line = getLine(doc, lineN), vis = visualLine(line);
+ if (line == vis) return lineN;
+ return lineNo(vis);
+ }
+ // Get the line number of the start of the next visual line after
+ // the given line.
+ function visualLineEndNo(doc, lineN) {
+ if (lineN > doc.lastLine()) return lineN;
+ var line = getLine(doc, lineN), merged;
+ if (!lineIsHidden(doc, line)) return lineN;
+ while (merged = collapsedSpanAtEnd(line))
+ line = merged.find(1, true).line;
+ return lineNo(line) + 1;
+ }
+
+ // Compute whether a line is hidden. Lines count as hidden when they
+ // are part of a visual line that starts with another line, or when
+ // they are entirely covered by collapsed, non-widget span.
+ function lineIsHidden(doc, line) {
+ var sps = sawCollapsedSpans && line.markedSpans;
+ if (sps) for (var sp, i = 0; i < sps.length; ++i) {
+ sp = sps[i];
+ if (!sp.marker.collapsed) continue;
+ if (sp.from == null) return true;
+ if (sp.marker.widgetNode) continue;
+ if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
+ return true;
+ }
+ }
+ function lineIsHiddenInner(doc, line, span) {
+ if (span.to == null) {
+ var end = span.marker.find(1, true);
+ return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker));
+ }
+ if (span.marker.inclusiveRight && span.to == line.text.length)
+ return true;
+ for (var sp, i = 0; i < line.markedSpans.length; ++i) {
+ sp = line.markedSpans[i];
+ if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
+ (sp.to == null || sp.to != span.from) &&
+ (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
+ lineIsHiddenInner(doc, line, sp)) return true;
+ }
+ }
+
+ // LINE WIDGETS
+
+ // Line widgets are block elements displayed above or below a line.
+
+ var LineWidget = CodeMirror.LineWidget = function(doc, node, options) {
+ if (options) for (var opt in options) if (options.hasOwnProperty(opt))
+ this[opt] = options[opt];
+ this.doc = doc;
+ this.node = node;
+ };
+ eventMixin(LineWidget);
+
+ function adjustScrollWhenAboveVisible(cm, line, diff) {
+ if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
+ addToScrollPos(cm, null, diff);
+ }
+
+ LineWidget.prototype.clear = function() {
+ var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
+ if (no == null || !ws) return;
+ for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);
+ if (!ws.length) line.widgets = null;
+ var height = widgetHeight(this);
+ updateLineHeight(line, Math.max(0, line.height - height));
+ if (cm) runInOp(cm, function() {
+ adjustScrollWhenAboveVisible(cm, line, -height);
+ regLineChange(cm, no, "widget");
+ });
+ };
+ LineWidget.prototype.changed = function() {
+ var oldH = this.height, cm = this.doc.cm, line = this.line;
+ this.height = null;
+ var diff = widgetHeight(this) - oldH;
+ if (!diff) return;
+ updateLineHeight(line, line.height + diff);
+ if (cm) runInOp(cm, function() {
+ cm.curOp.forceUpdate = true;
+ adjustScrollWhenAboveVisible(cm, line, diff);
+ });
+ };
+
+ function widgetHeight(widget) {
+ if (widget.height != null) return widget.height;
+ var cm = widget.doc.cm;
+ if (!cm) return 0;
+ if (!contains(document.body, widget.node)) {
+ var parentStyle = "position: relative;";
+ if (widget.coverGutter)
+ parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;";
+ if (widget.noHScroll)
+ parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;";
+ removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
+ }
+ return widget.height = widget.node.parentNode.offsetHeight;
+ }
+
+ function addLineWidget(doc, handle, node, options) {
+ var widget = new LineWidget(doc, node, options);
+ var cm = doc.cm;
+ if (cm && widget.noHScroll) cm.display.alignWidgets = true;
+ changeLine(doc, handle, "widget", function(line) {
+ var widgets = line.widgets || (line.widgets = []);
+ if (widget.insertAt == null) widgets.push(widget);
+ else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget);
+ widget.line = line;
+ if (cm && !lineIsHidden(doc, line)) {
+ var aboveVisible = heightAtLine(line) < doc.scrollTop;
+ updateLineHeight(line, line.height + widgetHeight(widget));
+ if (aboveVisible) addToScrollPos(cm, null, widget.height);
+ cm.curOp.forceUpdate = true;
+ }
+ return true;
+ });
+ return widget;
+ }
+
+ // LINE DATA STRUCTURE
+
+ // Line objects. These hold state related to a line, including
+ // highlighting info (the styles array).
+ var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) {
+ this.text = text;
+ attachMarkedSpans(this, markedSpans);
+ this.height = estimateHeight ? estimateHeight(this) : 1;
+ };
+ eventMixin(Line);
+ Line.prototype.lineNo = function() { return lineNo(this); };
+
+ // Change the content (text, markers) of a line. Automatically
+ // invalidates cached information and tries to re-estimate the
+ // line's height.
+ function updateLine(line, text, markedSpans, estimateHeight) {
+ line.text = text;
+ if (line.stateAfter) line.stateAfter = null;
+ if (line.styles) line.styles = null;
+ if (line.order != null) line.order = null;
+ detachMarkedSpans(line);
+ attachMarkedSpans(line, markedSpans);
+ var estHeight = estimateHeight ? estimateHeight(line) : 1;
+ if (estHeight != line.height) updateLineHeight(line, estHeight);
+ }
+
+ // Detach a line from the document tree and its markers.
+ function cleanUpLine(line) {
+ line.parent = null;
+ detachMarkedSpans(line);
+ }
+
+ function extractLineClasses(type, output) {
+ if (type) for (;;) {
+ var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
+ if (!lineClass) break;
+ type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
+ var prop = lineClass[1] ? "bgClass" : "textClass";
+ if (output[prop] == null)
+ output[prop] = lineClass[2];
+ else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
+ output[prop] += " " + lineClass[2];
+ }
+ return type;
+ }
+
+ function callBlankLine(mode, state) {
+ if (mode.blankLine) return mode.blankLine(state);
+ if (!mode.innerMode) return;
+ var inner = CodeMirror.innerMode(mode, state);
+ if (inner.mode.blankLine) return inner.mode.blankLine(inner.state);
+ }
+
+ function readToken(mode, stream, state, inner) {
+ for (var i = 0; i < 10; i++) {
+ if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode;
+ var style = mode.token(stream, state);
+ if (stream.pos > stream.start) return style;
+ }
+ throw new Error("Mode " + mode.name + " failed to advance stream.");
+ }
+
+ // Utility for getTokenAt and getLineTokens
+ function takeToken(cm, pos, precise, asArray) {
+ function getObj(copy) {
+ return {start: stream.start, end: stream.pos,
+ string: stream.current(),
+ type: style || null,
+ state: copy ? copyState(doc.mode, state) : state};
+ }
+
+ var doc = cm.doc, mode = doc.mode, style;
+ pos = clipPos(doc, pos);
+ var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise);
+ var stream = new StringStream(line.text, cm.options.tabSize), tokens;
+ if (asArray) tokens = [];
+ while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
+ stream.start = stream.pos;
+ style = readToken(mode, stream, state);
+ if (asArray) tokens.push(getObj(true));
+ }
+ return asArray ? tokens : getObj();
+ }
+
+ // Run the given mode's parser over a line, calling f for each token.
+ function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
+ var flattenSpans = mode.flattenSpans;
+ if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;
+ var curStart = 0, curStyle = null;
+ var stream = new StringStream(text, cm.options.tabSize), style;
+ var inner = cm.options.addModeClass && [null];
+ if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses);
+ while (!stream.eol()) {
+ if (stream.pos > cm.options.maxHighlightLength) {
+ flattenSpans = false;
+ if (forceToEnd) processLine(cm, text, state, stream.pos);
+ stream.pos = text.length;
+ style = null;
+ } else {
+ style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses);
+ }
+ if (inner) {
+ var mName = inner[0].name;
+ if (mName) style = "m-" + (style ? mName + " " + style : mName);
+ }
+ if (!flattenSpans || curStyle != style) {
+ while (curStart < stream.start) {
+ curStart = Math.min(stream.start, curStart + 50000);
+ f(curStart, curStyle);
+ }
+ curStyle = style;
+ }
+ stream.start = stream.pos;
+ }
+ while (curStart < stream.pos) {
+ // Webkit seems to refuse to render text nodes longer than 57444 characters
+ var pos = Math.min(stream.pos, curStart + 50000);
+ f(pos, curStyle);
+ curStart = pos;
+ }
+ }
+
+ // Compute a style array (an array starting with a mode generation
+ // -- for invalidation -- followed by pairs of end positions and
+ // style strings), which is used to highlight the tokens on the
+ // line.
+ function highlightLine(cm, line, state, forceToEnd) {
+ // A styles array always starts with a number identifying the
+ // mode/overlays that it is based on (for easy invalidation).
+ var st = [cm.state.modeGen], lineClasses = {};
+ // Compute the base array of styles
+ runMode(cm, line.text, cm.doc.mode, state, function(end, style) {
+ st.push(end, style);
+ }, lineClasses, forceToEnd);
+
+ // Run overlays, adjust style array.
+ for (var o = 0; o < cm.state.overlays.length; ++o) {
+ var overlay = cm.state.overlays[o], i = 1, at = 0;
+ runMode(cm, line.text, overlay.mode, true, function(end, style) {
+ var start = i;
+ // Ensure there's a token end at the current position, and that i points at it
+ while (at < end) {
+ var i_end = st[i];
+ if (i_end > end)
+ st.splice(i, 1, end, st[i+1], i_end);
+ i += 2;
+ at = Math.min(end, i_end);
+ }
+ if (!style) return;
+ if (overlay.opaque) {
+ st.splice(start, i - start, end, "cm-overlay " + style);
+ i = start + 2;
+ } else {
+ for (; start < i; start += 2) {
+ var cur = st[start+1];
+ st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style;
+ }
+ }
+ }, lineClasses);
+ }
+
+ return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null};
+ }
+
+ function getLineStyles(cm, line, updateFrontier) {
+ if (!line.styles || line.styles[0] != cm.state.modeGen) {
+ var state = getStateBefore(cm, lineNo(line));
+ var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state);
+ line.stateAfter = state;
+ line.styles = result.styles;
+ if (result.classes) line.styleClasses = result.classes;
+ else if (line.styleClasses) line.styleClasses = null;
+ if (updateFrontier === cm.doc.frontier) cm.doc.frontier++;
+ }
+ return line.styles;
+ }
+
+ // Lightweight form of highlight -- proceed over this line and
+ // update state, but don't save a style array. Used for lines that
+ // aren't currently visible.
+ function processLine(cm, text, state, startAt) {
+ var mode = cm.doc.mode;
+ var stream = new StringStream(text, cm.options.tabSize);
+ stream.start = stream.pos = startAt || 0;
+ if (text == "") callBlankLine(mode, state);
+ while (!stream.eol()) {
+ readToken(mode, stream, state);
+ stream.start = stream.pos;
+ }
+ }
+
+ // Convert a style as returned by a mode (either null, or a string
+ // containing one or more styles) to a CSS style. This is cached,
+ // and also looks for line-wide styles.
+ var styleToClassCache = {}, styleToClassCacheWithMode = {};
+ function interpretTokenStyle(style, options) {
+ if (!style || /^\s*$/.test(style)) return null;
+ var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
+ return cache[style] ||
+ (cache[style] = style.replace(/\S+/g, "cm-$&"));
+ }
+
+ // Render the DOM representation of the text of a line. Also builds
+ // up a 'line map', which points at the DOM nodes that represent
+ // specific stretches of text, and is used by the measuring code.
+ // The returned object contains the DOM node, this map, and
+ // information about line-wide styles that were set by the mode.
+ function buildLineContent(cm, lineView) {
+ // The padding-right forces the element to have a 'border', which
+ // is needed on Webkit to be able to get line-level bounding
+ // rectangles for it (in measureChar).
+ var content = elt("span", null, null, webkit ? "padding-right: .1px" : null);
+ var builder = {pre: elt("pre", [content], "CodeMirror-line"), content: content,
+ col: 0, pos: 0, cm: cm,
+ splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")};
+ lineView.measure = {};
+
+ // Iterate over the logical lines that make up this visual line.
+ for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
+ var line = i ? lineView.rest[i - 1] : lineView.line, order;
+ builder.pos = 0;
+ builder.addToken = buildToken;
+ // Optionally wire in some hacks into the token-rendering
+ // algorithm, to deal with browser quirks.
+ if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))
+ builder.addToken = buildTokenBadBidi(builder.addToken, order);
+ builder.map = [];
+ var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
+ insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
+ if (line.styleClasses) {
+ if (line.styleClasses.bgClass)
+ builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "");
+ if (line.styleClasses.textClass)
+ builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "");
+ }
+
+ // Ensure at least a single node is present, for measuring.
+ if (builder.map.length == 0)
+ builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)));
+
+ // Store the map and a cache object for the current logical line
+ if (i == 0) {
+ lineView.measure.map = builder.map;
+ lineView.measure.cache = {};
+ } else {
+ (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map);
+ (lineView.measure.caches || (lineView.measure.caches = [])).push({});
+ }
+ }
+
+ // See issue #2901
+ if (webkit) {
+ var last = builder.content.lastChild
+ if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
+ builder.content.className = "cm-tab-wrap-hack";
+ }
+
+ signal(cm, "renderLine", cm, lineView.line, builder.pre);
+ if (builder.pre.className)
+ builder.textClass = joinClasses(builder.pre.className, builder.textClass || "");
+
+ return builder;
+ }
+
+ function defaultSpecialCharPlaceholder(ch) {
+ var token = elt("span", "\u2022", "cm-invalidchar");
+ token.title = "\\u" + ch.charCodeAt(0).toString(16);
+ token.setAttribute("aria-label", token.title);
+ return token;
+ }
+
+ // Build up the DOM representation for a single token, and add it to
+ // the line map. Takes care to render special characters separately.
+ function buildToken(builder, text, style, startStyle, endStyle, title, css) {
+ if (!text) return;
+ var displayText = builder.splitSpaces ? text.replace(/ {3,}/g, splitSpaces) : text;
+ var special = builder.cm.state.specialChars, mustWrap = false;
+ if (!special.test(text)) {
+ builder.col += text.length;
+ var content = document.createTextNode(displayText);
+ builder.map.push(builder.pos, builder.pos + text.length, content);
+ if (ie && ie_version < 9) mustWrap = true;
+ builder.pos += text.length;
+ } else {
+ var content = document.createDocumentFragment(), pos = 0;
+ while (true) {
+ special.lastIndex = pos;
+ var m = special.exec(text);
+ var skipped = m ? m.index - pos : text.length - pos;
+ if (skipped) {
+ var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
+ if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
+ else content.appendChild(txt);
+ builder.map.push(builder.pos, builder.pos + skipped, txt);
+ builder.col += skipped;
+ builder.pos += skipped;
+ }
+ if (!m) break;
+ pos += skipped + 1;
+ if (m[0] == "\t") {
+ var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
+ var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
+ txt.setAttribute("role", "presentation");
+ txt.setAttribute("cm-text", "\t");
+ builder.col += tabWidth;
+ } else if (m[0] == "\r" || m[0] == "\n") {
+ var txt = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
+ txt.setAttribute("cm-text", m[0]);
+ builder.col += 1;
+ } else {
+ var txt = builder.cm.options.specialCharPlaceholder(m[0]);
+ txt.setAttribute("cm-text", m[0]);
+ if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
+ else content.appendChild(txt);
+ builder.col += 1;
+ }
+ builder.map.push(builder.pos, builder.pos + 1, txt);
+ builder.pos++;
+ }
+ }
+ if (style || startStyle || endStyle || mustWrap || css) {
+ var fullStyle = style || "";
+ if (startStyle) fullStyle += startStyle;
+ if (endStyle) fullStyle += endStyle;
+ var token = elt("span", [content], fullStyle, css);
+ if (title) token.title = title;
+ return builder.content.appendChild(token);
+ }
+ builder.content.appendChild(content);
+ }
+
+ function splitSpaces(old) {
+ var out = " ";
+ for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0";
+ out += " ";
+ return out;
+ }
+
+ // Work around nonsense dimensions being reported for stretches of
+ // right-to-left text.
+ function buildTokenBadBidi(inner, order) {
+ return function(builder, text, style, startStyle, endStyle, title, css) {
+ style = style ? style + " cm-force-border" : "cm-force-border";
+ var start = builder.pos, end = start + text.length;
+ for (;;) {
+ // Find the part that overlaps with the start of this text
+ for (var i = 0; i < order.length; i++) {
+ var part = order[i];
+ if (part.to > start && part.from <= start) break;
+ }
+ if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css);
+ inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css);
+ startStyle = null;
+ text = text.slice(part.to - start);
+ start = part.to;
+ }
+ };
+ }
+
+ function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
+ var widget = !ignoreWidget && marker.widgetNode;
+ if (widget) builder.map.push(builder.pos, builder.pos + size, widget);
+ if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
+ if (!widget)
+ widget = builder.content.appendChild(document.createElement("span"));
+ widget.setAttribute("cm-marker", marker.id);
+ }
+ if (widget) {
+ builder.cm.display.input.setUneditable(widget);
+ builder.content.appendChild(widget);
+ }
+ builder.pos += size;
+ }
+
+ // Outputs a number of spans to make up a line, taking highlighting
+ // and marked text into account.
+ function insertLineContent(line, builder, styles) {
+ var spans = line.markedSpans, allText = line.text, at = 0;
+ if (!spans) {
+ for (var i = 1; i < styles.length; i+=2)
+ builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options));
+ return;
+ }
+
+ var len = allText.length, pos = 0, i = 1, text = "", style, css;
+ var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed;
+ for (;;) {
+ if (nextChange == pos) { // Update current marker set
+ spanStyle = spanEndStyle = spanStartStyle = title = css = "";
+ collapsed = null; nextChange = Infinity;
+ var foundBookmarks = [], endStyles
+ for (var j = 0; j < spans.length; ++j) {
+ var sp = spans[j], m = sp.marker;
+ if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
+ foundBookmarks.push(m);
+ } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
+ if (sp.to != null && sp.to != pos && nextChange > sp.to) {
+ nextChange = sp.to;
+ spanEndStyle = "";
+ }
+ if (m.className) spanStyle += " " + m.className;
+ if (m.css) css = (css ? css + ";" : "") + m.css;
+ if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle;
+ if (m.endStyle && sp.to == nextChange) (endStyles || (endStyles = [])).push(m.endStyle, sp.to)
+ if (m.title && !title) title = m.title;
+ if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
+ collapsed = sp;
+ } else if (sp.from > pos && nextChange > sp.from) {
+ nextChange = sp.from;
+ }
+ }
+ if (endStyles) for (var j = 0; j < endStyles.length; j += 2)
+ if (endStyles[j + 1] == nextChange) spanEndStyle += " " + endStyles[j]
+
+ if (!collapsed || collapsed.from == pos) for (var j = 0; j < foundBookmarks.length; ++j)
+ buildCollapsedSpan(builder, 0, foundBookmarks[j]);
+ if (collapsed && (collapsed.from || 0) == pos) {
+ buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
+ collapsed.marker, collapsed.from == null);
+ if (collapsed.to == null) return;
+ if (collapsed.to == pos) collapsed = false;
+ }
+ }
+ if (pos >= len) break;
+
+ var upto = Math.min(len, nextChange);
+ while (true) {
+ if (text) {
+ var end = pos + text.length;
+ if (!collapsed) {
+ var tokenText = end > upto ? text.slice(0, upto - pos) : text;
+ builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
+ spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css);
+ }
+ if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
+ pos = end;
+ spanStartStyle = "";
+ }
+ text = allText.slice(at, at = styles[i++]);
+ style = interpretTokenStyle(styles[i++], builder.cm.options);
+ }
+ }
+ }
+
+ // DOCUMENT DATA STRUCTURE
+
+ // By default, updates that start and end at the beginning of a line
+ // are treated specially, in order to make the association of line
+ // widgets and marker elements with the text behave more intuitive.
+ function isWholeLineUpdate(doc, change) {
+ return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
+ (!doc.cm || doc.cm.options.wholeLineUpdateBefore);
+ }
+
+ // Perform a change on the document data structure.
+ function updateDoc(doc, change, markedSpans, estimateHeight) {
+ function spansFor(n) {return markedSpans ? markedSpans[n] : null;}
+ function update(line, text, spans) {
+ updateLine(line, text, spans, estimateHeight);
+ signalLater(line, "change", line, change);
+ }
+ function linesFor(start, end) {
+ for (var i = start, result = []; i < end; ++i)
+ result.push(new Line(text[i], spansFor(i), estimateHeight));
+ return result;
+ }
+
+ var from = change.from, to = change.to, text = change.text;
+ var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
+ var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
+
+ // Adjust the line structure
+ if (change.full) {
+ doc.insert(0, linesFor(0, text.length));
+ doc.remove(text.length, doc.size - text.length);
+ } else if (isWholeLineUpdate(doc, change)) {
+ // This is a whole-line replace. Treated specially to make
+ // sure line objects move the way they are supposed to.
+ var added = linesFor(0, text.length - 1);
+ update(lastLine, lastLine.text, lastSpans);
+ if (nlines) doc.remove(from.line, nlines);
+ if (added.length) doc.insert(from.line, added);
+ } else if (firstLine == lastLine) {
+ if (text.length == 1) {
+ update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
+ } else {
+ var added = linesFor(1, text.length - 1);
+ added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+ doc.insert(from.line + 1, added);
+ }
+ } else if (text.length == 1) {
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
+ doc.remove(from.line + 1, nlines);
+ } else {
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+ update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
+ var added = linesFor(1, text.length - 1);
+ if (nlines > 1) doc.remove(from.line + 1, nlines - 1);
+ doc.insert(from.line + 1, added);
+ }
+
+ signalLater(doc, "change", doc, change);
+ }
+
+ // The document is represented as a BTree consisting of leaves, with
+ // chunk of lines in them, and branches, with up to ten leaves or
+ // other branch nodes below them. The top node is always a branch
+ // node, and is the document object itself (meaning it has
+ // additional methods and properties).
+ //
+ // All nodes have parent links. The tree is used both to go from
+ // line numbers to line objects, and to go from objects to numbers.
+ // It also indexes by height, and is used to convert between height
+ // and line object, and to find the total height of the document.
+ //
+ // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
+
+ function LeafChunk(lines) {
+ this.lines = lines;
+ this.parent = null;
+ for (var i = 0, height = 0; i < lines.length; ++i) {
+ lines[i].parent = this;
+ height += lines[i].height;
+ }
+ this.height = height;
+ }
+
+ LeafChunk.prototype = {
+ chunkSize: function() { return this.lines.length; },
+ // Remove the n lines at offset 'at'.
+ removeInner: function(at, n) {
+ for (var i = at, e = at + n; i < e; ++i) {
+ var line = this.lines[i];
+ this.height -= line.height;
+ cleanUpLine(line);
+ signalLater(line, "delete");
+ }
+ this.lines.splice(at, n);
+ },
+ // Helper used to collapse a small branch into a single leaf.
+ collapse: function(lines) {
+ lines.push.apply(lines, this.lines);
+ },
+ // Insert the given array of lines at offset 'at', count them as
+ // having the given height.
+ insertInner: function(at, lines, height) {
+ this.height += height;
+ this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
+ for (var i = 0; i < lines.length; ++i) lines[i].parent = this;
+ },
+ // Used to iterate over a part of the tree.
+ iterN: function(at, n, op) {
+ for (var e = at + n; at < e; ++at)
+ if (op(this.lines[at])) return true;
+ }
+ };
+
+ function BranchChunk(children) {
+ this.children = children;
+ var size = 0, height = 0;
+ for (var i = 0; i < children.length; ++i) {
+ var ch = children[i];
+ size += ch.chunkSize(); height += ch.height;
+ ch.parent = this;
+ }
+ this.size = size;
+ this.height = height;
+ this.parent = null;
+ }
+
+ BranchChunk.prototype = {
+ chunkSize: function() { return this.size; },
+ removeInner: function(at, n) {
+ this.size -= n;
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at < sz) {
+ var rm = Math.min(n, sz - at), oldHeight = child.height;
+ child.removeInner(at, rm);
+ this.height -= oldHeight - child.height;
+ if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
+ if ((n -= rm) == 0) break;
+ at = 0;
+ } else at -= sz;
+ }
+ // If the result is smaller than 25 lines, ensure that it is a
+ // single leaf node.
+ if (this.size - n < 25 &&
+ (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
+ var lines = [];
+ this.collapse(lines);
+ this.children = [new LeafChunk(lines)];
+ this.children[0].parent = this;
+ }
+ },
+ collapse: function(lines) {
+ for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines);
+ },
+ insertInner: function(at, lines, height) {
+ this.size += lines.length;
+ this.height += height;
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at <= sz) {
+ child.insertInner(at, lines, height);
+ if (child.lines && child.lines.length > 50) {
+ // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
+ // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
+ var remaining = child.lines.length % 25 + 25
+ for (var pos = remaining; pos < child.lines.length;) {
+ var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
+ child.height -= leaf.height;
+ this.children.splice(++i, 0, leaf);
+ leaf.parent = this;
+ }
+ child.lines = child.lines.slice(0, remaining);
+ this.maybeSpill();
+ }
+ break;
+ }
+ at -= sz;
+ }
+ },
+ // When a node has grown, check whether it should be split.
+ maybeSpill: function() {
+ if (this.children.length <= 10) return;
+ var me = this;
+ do {
+ var spilled = me.children.splice(me.children.length - 5, 5);
+ var sibling = new BranchChunk(spilled);
+ if (!me.parent) { // Become the parent node
+ var copy = new BranchChunk(me.children);
+ copy.parent = me;
+ me.children = [copy, sibling];
+ me = copy;
+ } else {
+ me.size -= sibling.size;
+ me.height -= sibling.height;
+ var myIndex = indexOf(me.parent.children, me);
+ me.parent.children.splice(myIndex + 1, 0, sibling);
+ }
+ sibling.parent = me.parent;
+ } while (me.children.length > 10);
+ me.parent.maybeSpill();
+ },
+ iterN: function(at, n, op) {
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at < sz) {
+ var used = Math.min(n, sz - at);
+ if (child.iterN(at, used, op)) return true;
+ if ((n -= used) == 0) break;
+ at = 0;
+ } else at -= sz;
+ }
+ }
+ };
+
+ var nextDocId = 0;
+ var Doc = CodeMirror.Doc = function(text, mode, firstLine, lineSep) {
+ if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep);
+ if (firstLine == null) firstLine = 0;
+
+ BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
+ this.first = firstLine;
+ this.scrollTop = this.scrollLeft = 0;
+ this.cantEdit = false;
+ this.cleanGeneration = 1;
+ this.frontier = firstLine;
+ var start = Pos(firstLine, 0);
+ this.sel = simpleSelection(start);
+ this.history = new History(null);
+ this.id = ++nextDocId;
+ this.modeOption = mode;
+ this.lineSep = lineSep;
+ this.extend = false;
+
+ if (typeof text == "string") text = this.splitLines(text);
+ updateDoc(this, {from: start, to: start, text: text});
+ setSelection(this, simpleSelection(start), sel_dontScroll);
+ };
+
+ Doc.prototype = createObj(BranchChunk.prototype, {
+ constructor: Doc,
+ // Iterate over the document. Supports two forms -- with only one
+ // argument, it calls that for each line in the document. With
+ // three, it iterates over the range given by the first two (with
+ // the second being non-inclusive).
+ iter: function(from, to, op) {
+ if (op) this.iterN(from - this.first, to - from, op);
+ else this.iterN(this.first, this.first + this.size, from);
+ },
+
+ // Non-public interface for adding and removing lines.
+ insert: function(at, lines) {
+ var height = 0;
+ for (var i = 0; i < lines.length; ++i) height += lines[i].height;
+ this.insertInner(at - this.first, lines, height);
+ },
+ remove: function(at, n) { this.removeInner(at - this.first, n); },
+
+ // From here, the methods are part of the public interface. Most
+ // are also available from CodeMirror (editor) instances.
+
+ getValue: function(lineSep) {
+ var lines = getLines(this, this.first, this.first + this.size);
+ if (lineSep === false) return lines;
+ return lines.join(lineSep || this.lineSeparator());
+ },
+ setValue: docMethodOp(function(code) {
+ var top = Pos(this.first, 0), last = this.first + this.size - 1;
+ makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
+ text: this.splitLines(code), origin: "setValue", full: true}, true);
+ setSelection(this, simpleSelection(top));
+ }),
+ replaceRange: function(code, from, to, origin) {
+ from = clipPos(this, from);
+ to = to ? clipPos(this, to) : from;
+ replaceRange(this, code, from, to, origin);
+ },
+ getRange: function(from, to, lineSep) {
+ var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
+ if (lineSep === false) return lines;
+ return lines.join(lineSep || this.lineSeparator());
+ },
+
+ getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},
+
+ getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);},
+ getLineNumber: function(line) {return lineNo(line);},
+
+ getLineHandleVisualStart: function(line) {
+ if (typeof line == "number") line = getLine(this, line);
+ return visualLine(line);
+ },
+
+ lineCount: function() {return this.size;},
+ firstLine: function() {return this.first;},
+ lastLine: function() {return this.first + this.size - 1;},
+
+ clipPos: function(pos) {return clipPos(this, pos);},
+
+ getCursor: function(start) {
+ var range = this.sel.primary(), pos;
+ if (start == null || start == "head") pos = range.head;
+ else if (start == "anchor") pos = range.anchor;
+ else if (start == "end" || start == "to" || start === false) pos = range.to();
+ else pos = range.from();
+ return pos;
+ },
+ listSelections: function() { return this.sel.ranges; },
+ somethingSelected: function() {return this.sel.somethingSelected();},
+
+ setCursor: docMethodOp(function(line, ch, options) {
+ setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
+ }),
+ setSelection: docMethodOp(function(anchor, head, options) {
+ setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
+ }),
+ extendSelection: docMethodOp(function(head, other, options) {
+ extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
+ }),
+ extendSelections: docMethodOp(function(heads, options) {
+ extendSelections(this, clipPosArray(this, heads), options);
+ }),
+ extendSelectionsBy: docMethodOp(function(f, options) {
+ var heads = map(this.sel.ranges, f);
+ extendSelections(this, clipPosArray(this, heads), options);
+ }),
+ setSelections: docMethodOp(function(ranges, primary, options) {
+ if (!ranges.length) return;
+ for (var i = 0, out = []; i < ranges.length; i++)
+ out[i] = new Range(clipPos(this, ranges[i].anchor),
+ clipPos(this, ranges[i].head));
+ if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex);
+ setSelection(this, normalizeSelection(out, primary), options);
+ }),
+ addSelection: docMethodOp(function(anchor, head, options) {
+ var ranges = this.sel.ranges.slice(0);
+ ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
+ setSelection(this, normalizeSelection(ranges, ranges.length - 1), options);
+ }),
+
+ getSelection: function(lineSep) {
+ var ranges = this.sel.ranges, lines;
+ for (var i = 0; i < ranges.length; i++) {
+ var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+ lines = lines ? lines.concat(sel) : sel;
+ }
+ if (lineSep === false) return lines;
+ else return lines.join(lineSep || this.lineSeparator());
+ },
+ getSelections: function(lineSep) {
+ var parts = [], ranges = this.sel.ranges;
+ for (var i = 0; i < ranges.length; i++) {
+ var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+ if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator());
+ parts[i] = sel;
+ }
+ return parts;
+ },
+ replaceSelection: function(code, collapse, origin) {
+ var dup = [];
+ for (var i = 0; i < this.sel.ranges.length; i++)
+ dup[i] = code;
+ this.replaceSelections(dup, collapse, origin || "+input");
+ },
+ replaceSelections: docMethodOp(function(code, collapse, origin) {
+ var changes = [], sel = this.sel;
+ for (var i = 0; i < sel.ranges.length; i++) {
+ var range = sel.ranges[i];
+ changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
+ }
+ var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
+ for (var i = changes.length - 1; i >= 0; i--)
+ makeChange(this, changes[i]);
+ if (newSel) setSelectionReplaceHistory(this, newSel);
+ else if (this.cm) ensureCursorVisible(this.cm);
+ }),
+ undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
+ redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
+ undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
+ redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
+
+ setExtending: function(val) {this.extend = val;},
+ getExtending: function() {return this.extend;},
+
+ historySize: function() {
+ var hist = this.history, done = 0, undone = 0;
+ for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done;
+ for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone;
+ return {undo: done, redo: undone};
+ },
+ clearHistory: function() {this.history = new History(this.history.maxGeneration);},
+
+ markClean: function() {
+ this.cleanGeneration = this.changeGeneration(true);
+ },
+ changeGeneration: function(forceSplit) {
+ if (forceSplit)
+ this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null;
+ return this.history.generation;
+ },
+ isClean: function (gen) {
+ return this.history.generation == (gen || this.cleanGeneration);
+ },
+
+ getHistory: function() {
+ return {done: copyHistoryArray(this.history.done),
+ undone: copyHistoryArray(this.history.undone)};
+ },
+ setHistory: function(histData) {
+ var hist = this.history = new History(this.history.maxGeneration);
+ hist.done = copyHistoryArray(histData.done.slice(0), null, true);
+ hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
+ },
+
+ addLineClass: docMethodOp(function(handle, where, cls) {
+ return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
+ var prop = where == "text" ? "textClass"
+ : where == "background" ? "bgClass"
+ : where == "gutter" ? "gutterClass" : "wrapClass";
+ if (!line[prop]) line[prop] = cls;
+ else if (classTest(cls).test(line[prop])) return false;
+ else line[prop] += " " + cls;
+ return true;
+ });
+ }),
+ removeLineClass: docMethodOp(function(handle, where, cls) {
+ return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
+ var prop = where == "text" ? "textClass"
+ : where == "background" ? "bgClass"
+ : where == "gutter" ? "gutterClass" : "wrapClass";
+ var cur = line[prop];
+ if (!cur) return false;
+ else if (cls == null) line[prop] = null;
+ else {
+ var found = cur.match(classTest(cls));
+ if (!found) return false;
+ var end = found.index + found[0].length;
+ line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
+ }
+ return true;
+ });
+ }),
+
+ addLineWidget: docMethodOp(function(handle, node, options) {
+ return addLineWidget(this, handle, node, options);
+ }),
+ removeLineWidget: function(widget) { widget.clear(); },
+
+ markText: function(from, to, options) {
+ return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range");
+ },
+ setBookmark: function(pos, options) {
+ var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
+ insertLeft: options && options.insertLeft,
+ clearWhenEmpty: false, shared: options && options.shared,
+ handleMouseEvents: options && options.handleMouseEvents};
+ pos = clipPos(this, pos);
+ return markText(this, pos, pos, realOpts, "bookmark");
+ },
+ findMarksAt: function(pos) {
+ pos = clipPos(this, pos);
+ var markers = [], spans = getLine(this, pos.line).markedSpans;
+ if (spans) for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if ((span.from == null || span.from <= pos.ch) &&
+ (span.to == null || span.to >= pos.ch))
+ markers.push(span.marker.parent || span.marker);
+ }
+ return markers;
+ },
+ findMarks: function(from, to, filter) {
+ from = clipPos(this, from); to = clipPos(this, to);
+ var found = [], lineNo = from.line;
+ this.iter(from.line, to.line + 1, function(line) {
+ var spans = line.markedSpans;
+ if (spans) for (var i = 0; i < spans.length; i++) {
+ var span = spans[i];
+ if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
+ span.from == null && lineNo != from.line ||
+ span.from != null && lineNo == to.line && span.from >= to.ch) &&
+ (!filter || filter(span.marker)))
+ found.push(span.marker.parent || span.marker);
+ }
+ ++lineNo;
+ });
+ return found;
+ },
+ getAllMarks: function() {
+ var markers = [];
+ this.iter(function(line) {
+ var sps = line.markedSpans;
+ if (sps) for (var i = 0; i < sps.length; ++i)
+ if (sps[i].from != null) markers.push(sps[i].marker);
+ });
+ return markers;
+ },
+
+ posFromIndex: function(off) {
+ var ch, lineNo = this.first, sepSize = this.lineSeparator().length;
+ this.iter(function(line) {
+ var sz = line.text.length + sepSize;
+ if (sz > off) { ch = off; return true; }
+ off -= sz;
+ ++lineNo;
+ });
+ return clipPos(this, Pos(lineNo, ch));
+ },
+ indexFromPos: function (coords) {
+ coords = clipPos(this, coords);
+ var index = coords.ch;
+ if (coords.line < this.first || coords.ch < 0) return 0;
+ var sepSize = this.lineSeparator().length;
+ this.iter(this.first, coords.line, function (line) {
+ index += line.text.length + sepSize;
+ });
+ return index;
+ },
+
+ copy: function(copyHistory) {
+ var doc = new Doc(getLines(this, this.first, this.first + this.size),
+ this.modeOption, this.first, this.lineSep);
+ doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
+ doc.sel = this.sel;
+ doc.extend = false;
+ if (copyHistory) {
+ doc.history.undoDepth = this.history.undoDepth;
+ doc.setHistory(this.getHistory());
+ }
+ return doc;
+ },
+
+ linkedDoc: function(options) {
+ if (!options) options = {};
+ var from = this.first, to = this.first + this.size;
+ if (options.from != null && options.from > from) from = options.from;
+ if (options.to != null && options.to < to) to = options.to;
+ var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep);
+ if (options.sharedHist) copy.history = this.history;
+ (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
+ copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
+ copySharedMarkers(copy, findSharedMarkers(this));
+ return copy;
+ },
+ unlinkDoc: function(other) {
+ if (other instanceof CodeMirror) other = other.doc;
+ if (this.linked) for (var i = 0; i < this.linked.length; ++i) {
+ var link = this.linked[i];
+ if (link.doc != other) continue;
+ this.linked.splice(i, 1);
+ other.unlinkDoc(this);
+ detachSharedMarkers(findSharedMarkers(this));
+ break;
+ }
+ // If the histories were shared, split them again
+ if (other.history == this.history) {
+ var splitIds = [other.id];
+ linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true);
+ other.history = new History(null);
+ other.history.done = copyHistoryArray(this.history.done, splitIds);
+ other.history.undone = copyHistoryArray(this.history.undone, splitIds);
+ }
+ },
+ iterLinkedDocs: function(f) {linkedDocs(this, f);},
+
+ getMode: function() {return this.mode;},
+ getEditor: function() {return this.cm;},
+
+ splitLines: function(str) {
+ if (this.lineSep) return str.split(this.lineSep);
+ return splitLinesAuto(str);
+ },
+ lineSeparator: function() { return this.lineSep || "\n"; }
+ });
+
+ // Public alias.
+ Doc.prototype.eachLine = Doc.prototype.iter;
+
+ // Set up methods on CodeMirror's prototype to redirect to the editor's document.
+ var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
+ for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
+ CodeMirror.prototype[prop] = (function(method) {
+ return function() {return method.apply(this.doc, arguments);};
+ })(Doc.prototype[prop]);
+
+ eventMixin(Doc);
+
+ // Call f for all linked documents.
+ function linkedDocs(doc, f, sharedHistOnly) {
+ function propagate(doc, skip, sharedHist) {
+ if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) {
+ var rel = doc.linked[i];
+ if (rel.doc == skip) continue;
+ var shared = sharedHist && rel.sharedHist;
+ if (sharedHistOnly && !shared) continue;
+ f(rel.doc, shared);
+ propagate(rel.doc, doc, shared);
+ }
+ }
+ propagate(doc, null, true);
+ }
+
+ // Attach a document to an editor.
+ function attachDoc(cm, doc) {
+ if (doc.cm) throw new Error("This document is already in use.");
+ cm.doc = doc;
+ doc.cm = cm;
+ estimateLineHeights(cm);
+ loadMode(cm);
+ if (!cm.options.lineWrapping) findMaxLine(cm);
+ cm.options.mode = doc.modeOption;
+ regChange(cm);
+ }
+
+ // LINE UTILITIES
+
+ // Find the line object corresponding to the given line number.
+ function getLine(doc, n) {
+ n -= doc.first;
+ if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document.");
+ for (var chunk = doc; !chunk.lines;) {
+ for (var i = 0;; ++i) {
+ var child = chunk.children[i], sz = child.chunkSize();
+ if (n < sz) { chunk = child; break; }
+ n -= sz;
+ }
+ }
+ return chunk.lines[n];
+ }
+
+ // Get the part of a document between two positions, as an array of
+ // strings.
+ function getBetween(doc, start, end) {
+ var out = [], n = start.line;
+ doc.iter(start.line, end.line + 1, function(line) {
+ var text = line.text;
+ if (n == end.line) text = text.slice(0, end.ch);
+ if (n == start.line) text = text.slice(start.ch);
+ out.push(text);
+ ++n;
+ });
+ return out;
+ }
+ // Get the lines between from and to, as array of strings.
+ function getLines(doc, from, to) {
+ var out = [];
+ doc.iter(from, to, function(line) { out.push(line.text); });
+ return out;
+ }
+
+ // Update the height of a line, propagating the height change
+ // upwards to parent nodes.
+ function updateLineHeight(line, height) {
+ var diff = height - line.height;
+ if (diff) for (var n = line; n; n = n.parent) n.height += diff;
+ }
+
+ // Given a line object, find its line number by walking up through
+ // its parent links.
+ function lineNo(line) {
+ if (line.parent == null) return null;
+ var cur = line.parent, no = indexOf(cur.lines, line);
+ for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+ for (var i = 0;; ++i) {
+ if (chunk.children[i] == cur) break;
+ no += chunk.children[i].chunkSize();
+ }
+ }
+ return no + cur.first;
+ }
+
+ // Find the line at the given vertical position, using the height
+ // information in the document tree.
+ function lineAtHeight(chunk, h) {
+ var n = chunk.first;
+ outer: do {
+ for (var i = 0; i < chunk.children.length; ++i) {
+ var child = chunk.children[i], ch = child.height;
+ if (h < ch) { chunk = child; continue outer; }
+ h -= ch;
+ n += child.chunkSize();
+ }
+ return n;
+ } while (!chunk.lines);
+ for (var i = 0; i < chunk.lines.length; ++i) {
+ var line = chunk.lines[i], lh = line.height;
+ if (h < lh) break;
+ h -= lh;
+ }
+ return n + i;
+ }
+
+
+ // Find the height above the given line.
+ function heightAtLine(lineObj) {
+ lineObj = visualLine(lineObj);
+
+ var h = 0, chunk = lineObj.parent;
+ for (var i = 0; i < chunk.lines.length; ++i) {
+ var line = chunk.lines[i];
+ if (line == lineObj) break;
+ else h += line.height;
+ }
+ for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
+ for (var i = 0; i < p.children.length; ++i) {
+ var cur = p.children[i];
+ if (cur == chunk) break;
+ else h += cur.height;
+ }
+ }
+ return h;
+ }
+
+ // Get the bidi ordering for the given line (and cache it). Returns
+ // false for lines that are fully left-to-right, and an array of
+ // BidiSpan objects otherwise.
+ function getOrder(line) {
+ var order = line.order;
+ if (order == null) order = line.order = bidiOrdering(line.text);
+ return order;
+ }
+
+ // HISTORY
+
+ function History(startGen) {
+ // Arrays of change events and selections. Doing something adds an
+ // event to done and clears undo. Undoing moves events from done
+ // to undone, redoing moves them in the other direction.
+ this.done = []; this.undone = [];
+ this.undoDepth = Infinity;
+ // Used to track when changes can be merged into a single undo
+ // event
+ this.lastModTime = this.lastSelTime = 0;
+ this.lastOp = this.lastSelOp = null;
+ this.lastOrigin = this.lastSelOrigin = null;
+ // Used by the isClean() method
+ this.generation = this.maxGeneration = startGen || 1;
+ }
+
+ // Create a history change event from an updateDoc-style change
+ // object.
+ function historyChangeFromChange(doc, change) {
+ var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
+ attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
+ linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true);
+ return histChange;
+ }
+
+ // Pop all selection events off the end of a history array. Stop at
+ // a change event.
+ function clearSelectionEvents(array) {
+ while (array.length) {
+ var last = lst(array);
+ if (last.ranges) array.pop();
+ else break;
+ }
+ }
+
+ // Find the top change event in the history. Pop off selection
+ // events that are in the way.
+ function lastChangeEvent(hist, force) {
+ if (force) {
+ clearSelectionEvents(hist.done);
+ return lst(hist.done);
+ } else if (hist.done.length && !lst(hist.done).ranges) {
+ return lst(hist.done);
+ } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
+ hist.done.pop();
+ return lst(hist.done);
+ }
+ }
+
+ // Register a change in the history. Merges changes that are within
+ // a single operation, ore are close together with an origin that
+ // allows merging (starting with "+") into a single event.
+ function addChangeToHistory(doc, change, selAfter, opId) {
+ var hist = doc.history;
+ hist.undone.length = 0;
+ var time = +new Date, cur;
+
+ if ((hist.lastOp == opId ||
+ hist.lastOrigin == change.origin && change.origin &&
+ ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
+ change.origin.charAt(0) == "*")) &&
+ (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
+ // Merge this change into the last event
+ var last = lst(cur.changes);
+ if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
+ // Optimized case for simple insertion -- don't want to add
+ // new changesets for every character typed
+ last.to = changeEnd(change);
+ } else {
+ // Add new sub-event
+ cur.changes.push(historyChangeFromChange(doc, change));
+ }
+ } else {
+ // Can not be merged, start a new event.
+ var before = lst(hist.done);
+ if (!before || !before.ranges)
+ pushSelectionToHistory(doc.sel, hist.done);
+ cur = {changes: [historyChangeFromChange(doc, change)],
+ generation: hist.generation};
+ hist.done.push(cur);
+ while (hist.done.length > hist.undoDepth) {
+ hist.done.shift();
+ if (!hist.done[0].ranges) hist.done.shift();
+ }
+ }
+ hist.done.push(selAfter);
+ hist.generation = ++hist.maxGeneration;
+ hist.lastModTime = hist.lastSelTime = time;
+ hist.lastOp = hist.lastSelOp = opId;
+ hist.lastOrigin = hist.lastSelOrigin = change.origin;
+
+ if (!last) signal(doc, "historyAdded");
+ }
+
+ function selectionEventCanBeMerged(doc, origin, prev, sel) {
+ var ch = origin.charAt(0);
+ return ch == "*" ||
+ ch == "+" &&
+ prev.ranges.length == sel.ranges.length &&
+ prev.somethingSelected() == sel.somethingSelected() &&
+ new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500);
+ }
+
+ // Called whenever the selection changes, sets the new selection as
+ // the pending selection in the history, and pushes the old pending
+ // selection into the 'done' array when it was significantly
+ // different (in number of selected ranges, emptiness, or time).
+ function addSelectionToHistory(doc, sel, opId, options) {
+ var hist = doc.history, origin = options && options.origin;
+
+ // A new event is started when the previous origin does not match
+ // the current, or the origins don't allow matching. Origins
+ // starting with * are always merged, those starting with + are
+ // merged when similar and close together in time.
+ if (opId == hist.lastSelOp ||
+ (origin && hist.lastSelOrigin == origin &&
+ (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
+ selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
+ hist.done[hist.done.length - 1] = sel;
+ else
+ pushSelectionToHistory(sel, hist.done);
+
+ hist.lastSelTime = +new Date;
+ hist.lastSelOrigin = origin;
+ hist.lastSelOp = opId;
+ if (options && options.clearRedo !== false)
+ clearSelectionEvents(hist.undone);
+ }
+
+ function pushSelectionToHistory(sel, dest) {
+ var top = lst(dest);
+ if (!(top && top.ranges && top.equals(sel)))
+ dest.push(sel);
+ }
+
+ // Used to store marked span information in the history.
+ function attachLocalSpans(doc, change, from, to) {
+ var existing = change["spans_" + doc.id], n = 0;
+ doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) {
+ if (line.markedSpans)
+ (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans;
+ ++n;
+ });
+ }
+
+ // When un/re-doing restores text containing marked spans, those
+ // that have been explicitly cleared should not be restored.
+ function removeClearedSpans(spans) {
+ if (!spans) return null;
+ for (var i = 0, out; i < spans.length; ++i) {
+ if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
+ else if (out) out.push(spans[i]);
+ }
+ return !out ? spans : out.length ? out : null;
+ }
+
+ // Retrieve and filter the old marked spans stored in a change event.
+ function getOldSpans(doc, change) {
+ var found = change["spans_" + doc.id];
+ if (!found) return null;
+ for (var i = 0, nw = []; i < change.text.length; ++i)
+ nw.push(removeClearedSpans(found[i]));
+ return nw;
+ }
+
+ // Used both to provide a JSON-safe object in .getHistory, and, when
+ // detaching a document, to split the history in two
+ function copyHistoryArray(events, newGroup, instantiateSel) {
+ for (var i = 0, copy = []; i < events.length; ++i) {
+ var event = events[i];
+ if (event.ranges) {
+ copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
+ continue;
+ }
+ var changes = event.changes, newChanges = [];
+ copy.push({changes: newChanges});
+ for (var j = 0; j < changes.length; ++j) {
+ var change = changes[j], m;
+ newChanges.push({from: change.from, to: change.to, text: change.text});
+ if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
+ if (indexOf(newGroup, Number(m[1])) > -1) {
+ lst(newChanges)[prop] = change[prop];
+ delete change[prop];
+ }
+ }
+ }
+ }
+ return copy;
+ }
+
+ // Rebasing/resetting history to deal with externally-sourced changes
+
+ function rebaseHistSelSingle(pos, from, to, diff) {
+ if (to < pos.line) {
+ pos.line += diff;
+ } else if (from < pos.line) {
+ pos.line = from;
+ pos.ch = 0;
+ }
+ }
+
+ // Tries to rebase an array of history events given a change in the
+ // document. If the change touches the same lines as the event, the
+ // event, and everything 'behind' it, is discarded. If the change is
+ // before the event, the event's positions are updated. Uses a
+ // copy-on-write scheme for the positions, to avoid having to
+ // reallocate them all on every rebase, but also avoid problems with
+ // shared position objects being unsafely updated.
+ function rebaseHistArray(array, from, to, diff) {
+ for (var i = 0; i < array.length; ++i) {
+ var sub = array[i], ok = true;
+ if (sub.ranges) {
+ if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
+ for (var j = 0; j < sub.ranges.length; j++) {
+ rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
+ rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
+ }
+ continue;
+ }
+ for (var j = 0; j < sub.changes.length; ++j) {
+ var cur = sub.changes[j];
+ if (to < cur.from.line) {
+ cur.from = Pos(cur.from.line + diff, cur.from.ch);
+ cur.to = Pos(cur.to.line + diff, cur.to.ch);
+ } else if (from <= cur.to.line) {
+ ok = false;
+ break;
+ }
+ }
+ if (!ok) {
+ array.splice(0, i + 1);
+ i = 0;
+ }
+ }
+ }
+
+ function rebaseHist(hist, change) {
+ var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
+ rebaseHistArray(hist.done, from, to, diff);
+ rebaseHistArray(hist.undone, from, to, diff);
+ }
+
+ // EVENT UTILITIES
+
+ // Due to the fact that we still support jurassic IE versions, some
+ // compatibility wrappers are needed.
+
+ var e_preventDefault = CodeMirror.e_preventDefault = function(e) {
+ if (e.preventDefault) e.preventDefault();
+ else e.returnValue = false;
+ };
+ var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) {
+ if (e.stopPropagation) e.stopPropagation();
+ else e.cancelBubble = true;
+ };
+ function e_defaultPrevented(e) {
+ return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false;
+ }
+ var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);};
+
+ function e_target(e) {return e.target || e.srcElement;}
+ function e_button(e) {
+ var b = e.which;
+ if (b == null) {
+ if (e.button & 1) b = 1;
+ else if (e.button & 2) b = 3;
+ else if (e.button & 4) b = 2;
+ }
+ if (mac && e.ctrlKey && b == 1) b = 3;
+ return b;
+ }
+
+ // EVENT HANDLING
+
+ // Lightweight event framework. on/off also work on DOM nodes,
+ // registering native DOM handlers.
+
+ var on = CodeMirror.on = function(emitter, type, f) {
+ if (emitter.addEventListener)
+ emitter.addEventListener(type, f, false);
+ else if (emitter.attachEvent)
+ emitter.attachEvent("on" + type, f);
+ else {
+ var map = emitter._handlers || (emitter._handlers = {});
+ var arr = map[type] || (map[type] = []);
+ arr.push(f);
+ }
+ };
+
+ var noHandlers = []
+ function getHandlers(emitter, type, copy) {
+ var arr = emitter._handlers && emitter._handlers[type]
+ if (copy) return arr && arr.length > 0 ? arr.slice() : noHandlers
+ else return arr || noHandlers
+ }
+
+ var off = CodeMirror.off = function(emitter, type, f) {
+ if (emitter.removeEventListener)
+ emitter.removeEventListener(type, f, false);
+ else if (emitter.detachEvent)
+ emitter.detachEvent("on" + type, f);
+ else {
+ var handlers = getHandlers(emitter, type, false)
+ for (var i = 0; i < handlers.length; ++i)
+ if (handlers[i] == f) { handlers.splice(i, 1); break; }
+ }
+ };
+
+ var signal = CodeMirror.signal = function(emitter, type /*, values...*/) {
+ var handlers = getHandlers(emitter, type, true)
+ if (!handlers.length) return;
+ var args = Array.prototype.slice.call(arguments, 2);
+ for (var i = 0; i < handlers.length; ++i) handlers[i].apply(null, args);
+ };
+
+ var orphanDelayedCallbacks = null;
+
+ // Often, we want to signal events at a point where we are in the
+ // middle of some work, but don't want the handler to start calling
+ // other methods on the editor, which might be in an inconsistent
+ // state or simply not expect any other events to happen.
+ // signalLater looks whether there are any handlers, and schedules
+ // them to be executed when the last operation ends, or, if no
+ // operation is active, when a timeout fires.
+ function signalLater(emitter, type /*, values...*/) {
+ var arr = getHandlers(emitter, type, false)
+ if (!arr.length) return;
+ var args = Array.prototype.slice.call(arguments, 2), list;
+ if (operationGroup) {
+ list = operationGroup.delayedCallbacks;
+ } else if (orphanDelayedCallbacks) {
+ list = orphanDelayedCallbacks;
+ } else {
+ list = orphanDelayedCallbacks = [];
+ setTimeout(fireOrphanDelayed, 0);
+ }
+ function bnd(f) {return function(){f.apply(null, args);};};
+ for (var i = 0; i < arr.length; ++i)
+ list.push(bnd(arr[i]));
+ }
+
+ function fireOrphanDelayed() {
+ var delayed = orphanDelayedCallbacks;
+ orphanDelayedCallbacks = null;
+ for (var i = 0; i < delayed.length; ++i) delayed[i]();
+ }
+
+ // The DOM events that CodeMirror handles can be overridden by
+ // registering a (non-DOM) handler on the editor for the event name,
+ // and preventDefault-ing the event in that handler.
+ function signalDOMEvent(cm, e, override) {
+ if (typeof e == "string")
+ e = {type: e, preventDefault: function() { this.defaultPrevented = true; }};
+ signal(cm, override || e.type, cm, e);
+ return e_defaultPrevented(e) || e.codemirrorIgnore;
+ }
+
+ function signalCursorActivity(cm) {
+ var arr = cm._handlers && cm._handlers.cursorActivity;
+ if (!arr) return;
+ var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
+ for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)
+ set.push(arr[i]);
+ }
+
+ function hasHandler(emitter, type) {
+ return getHandlers(emitter, type).length > 0
+ }
+
+ // Add on and off methods to a constructor's prototype, to make
+ // registering events on such objects more convenient.
+ function eventMixin(ctor) {
+ ctor.prototype.on = function(type, f) {on(this, type, f);};
+ ctor.prototype.off = function(type, f) {off(this, type, f);};
+ }
+
+ // MISC UTILITIES
+
+ // Number of pixels added to scroller and sizer to hide scrollbar
+ var scrollerGap = 30;
+
+ // Returned or thrown by various protocols to signal 'I'm not
+ // handling this'.
+ var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
+
+ // Reused option objects for setSelection & friends
+ var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
+
+ function Delayed() {this.id = null;}
+ Delayed.prototype.set = function(ms, f) {
+ clearTimeout(this.id);
+ this.id = setTimeout(f, ms);
+ };
+
+ // Counts the column offset in a string, taking tabs into account.
+ // Used mostly to find indentation.
+ var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) {
+ if (end == null) {
+ end = string.search(/[^\s\u00a0]/);
+ if (end == -1) end = string.length;
+ }
+ for (var i = startIndex || 0, n = startValue || 0;;) {
+ var nextTab = string.indexOf("\t", i);
+ if (nextTab < 0 || nextTab >= end)
+ return n + (end - i);
+ n += nextTab - i;
+ n += tabSize - (n % tabSize);
+ i = nextTab + 1;
+ }
+ };
+
+ // The inverse of countColumn -- find the offset that corresponds to
+ // a particular column.
+ var findColumn = CodeMirror.findColumn = function(string, goal, tabSize) {
+ for (var pos = 0, col = 0;;) {
+ var nextTab = string.indexOf("\t", pos);
+ if (nextTab == -1) nextTab = string.length;
+ var skipped = nextTab - pos;
+ if (nextTab == string.length || col + skipped >= goal)
+ return pos + Math.min(skipped, goal - col);
+ col += nextTab - pos;
+ col += tabSize - (col % tabSize);
+ pos = nextTab + 1;
+ if (col >= goal) return pos;
+ }
+ }
+
+ var spaceStrs = [""];
+ function spaceStr(n) {
+ while (spaceStrs.length <= n)
+ spaceStrs.push(lst(spaceStrs) + " ");
+ return spaceStrs[n];
+ }
+
+ function lst(arr) { return arr[arr.length-1]; }
+
+ var selectInput = function(node) { node.select(); };
+ if (ios) // Mobile Safari apparently has a bug where select() is broken.
+ selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; };
+ else if (ie) // Suppress mysterious IE10 errors
+ selectInput = function(node) { try { node.select(); } catch(_e) {} };
+
+ function indexOf(array, elt) {
+ for (var i = 0; i < array.length; ++i)
+ if (array[i] == elt) return i;
+ return -1;
+ }
+ function map(array, f) {
+ var out = [];
+ for (var i = 0; i < array.length; i++) out[i] = f(array[i], i);
+ return out;
+ }
+
+ function nothing() {}
+
+ function createObj(base, props) {
+ var inst;
+ if (Object.create) {
+ inst = Object.create(base);
+ } else {
+ nothing.prototype = base;
+ inst = new nothing();
+ }
+ if (props) copyObj(props, inst);
+ return inst;
+ };
+
+ function copyObj(obj, target, overwrite) {
+ if (!target) target = {};
+ for (var prop in obj)
+ if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
+ target[prop] = obj[prop];
+ return target;
+ }
+
+ function bind(f) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ return function(){return f.apply(null, args);};
+ }
+
+ var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
+ var isWordCharBasic = CodeMirror.isWordChar = function(ch) {
+ return /\w/.test(ch) || ch > "\x80" &&
+ (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch));
+ };
+ function isWordChar(ch, helper) {
+ if (!helper) return isWordCharBasic(ch);
+ if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true;
+ return helper.test(ch);
+ }
+
+ function isEmpty(obj) {
+ for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;
+ return true;
+ }
+
+ // Extending unicode characters. A series of a non-extending char +
+ // any number of extending chars is treated as a single unit as far
+ // as editing and measuring is concerned. This is not fully correct,
+ // since some scripts/fonts/browsers also treat other configurations
+ // of code points as a group.
+ var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
+ function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); }
+
+ // DOM UTILITIES
+
+ function elt(tag, content, className, style) {
+ var e = document.createElement(tag);
+ if (className) e.className = className;
+ if (style) e.style.cssText = style;
+ if (typeof content == "string") e.appendChild(document.createTextNode(content));
+ else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
+ return e;
+ }
+
+ var range;
+ if (document.createRange) range = function(node, start, end, endNode) {
+ var r = document.createRange();
+ r.setEnd(endNode || node, end);
+ r.setStart(node, start);
+ return r;
+ };
+ else range = function(node, start, end) {
+ var r = document.body.createTextRange();
+ try { r.moveToElementText(node.parentNode); }
+ catch(e) { return r; }
+ r.collapse(true);
+ r.moveEnd("character", end);
+ r.moveStart("character", start);
+ return r;
+ };
+
+ function removeChildren(e) {
+ for (var count = e.childNodes.length; count > 0; --count)
+ e.removeChild(e.firstChild);
+ return e;
+ }
+
+ function removeChildrenAndAdd(parent, e) {
+ return removeChildren(parent).appendChild(e);
+ }
+
+ var contains = CodeMirror.contains = function(parent, child) {
+ if (child.nodeType == 3) // Android browser always returns false when child is a textnode
+ child = child.parentNode;
+ if (parent.contains)
+ return parent.contains(child);
+ do {
+ if (child.nodeType == 11) child = child.host;
+ if (child == parent) return true;
+ } while (child = child.parentNode);
+ };
+
+ function activeElt() {
+ var activeElement = document.activeElement;
+ while (activeElement && activeElement.root && activeElement.root.activeElement)
+ activeElement = activeElement.root.activeElement;
+ return activeElement;
+ }
+ // Older versions of IE throws unspecified error when touching
+ // document.activeElement in some cases (during loading, in iframe)
+ if (ie && ie_version < 11) activeElt = function() {
+ try { return document.activeElement; }
+ catch(e) { return document.body; }
+ };
+
+ function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); }
+ var rmClass = CodeMirror.rmClass = function(node, cls) {
+ var current = node.className;
+ var match = classTest(cls).exec(current);
+ if (match) {
+ var after = current.slice(match.index + match[0].length);
+ node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
+ }
+ };
+ var addClass = CodeMirror.addClass = function(node, cls) {
+ var current = node.className;
+ if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls;
+ };
+ function joinClasses(a, b) {
+ var as = a.split(" ");
+ for (var i = 0; i < as.length; i++)
+ if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i];
+ return b;
+ }
+
+ // WINDOW-WIDE EVENTS
+
+ // These must be handled carefully, because naively registering a
+ // handler for each editor will cause the editors to never be
+ // garbage collected.
+
+ function forEachCodeMirror(f) {
+ if (!document.body.getElementsByClassName) return;
+ var byClass = document.body.getElementsByClassName("CodeMirror");
+ for (var i = 0; i < byClass.length; i++) {
+ var cm = byClass[i].CodeMirror;
+ if (cm) f(cm);
+ }
+ }
+
+ var globalsRegistered = false;
+ function ensureGlobalHandlers() {
+ if (globalsRegistered) return;
+ registerGlobalHandlers();
+ globalsRegistered = true;
+ }
+ function registerGlobalHandlers() {
+ // When the window resizes, we need to refresh active editors.
+ var resizeTimer;
+ on(window, "resize", function() {
+ if (resizeTimer == null) resizeTimer = setTimeout(function() {
+ resizeTimer = null;
+ forEachCodeMirror(onResize);
+ }, 100);
+ });
+ // When the window loses focus, we want to show the editor as blurred
+ on(window, "blur", function() {
+ forEachCodeMirror(onBlur);
+ });
+ }
+
+ // FEATURE DETECTION
+
+ // Detect drag-and-drop
+ var dragAndDrop = function() {
+ // There is *some* kind of drag-and-drop support in IE6-8, but I
+ // couldn't get it to work yet.
+ if (ie && ie_version < 9) return false;
+ var div = elt('div');
+ return "draggable" in div || "dragDrop" in div;
+ }();
+
+ var zwspSupported;
+ function zeroWidthElement(measure) {
+ if (zwspSupported == null) {
+ var test = elt("span", "\u200b");
+ removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
+ if (measure.firstChild.offsetHeight != 0)
+ zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8);
+ }
+ var node = zwspSupported ? elt("span", "\u200b") :
+ elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
+ node.setAttribute("cm-text", "");
+ return node;
+ }
+
+ // Feature-detect IE's crummy client rect reporting for bidi text
+ var badBidiRects;
+ function hasBadBidiRects(measure) {
+ if (badBidiRects != null) return badBidiRects;
+ var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
+ var r0 = range(txt, 0, 1).getBoundingClientRect();
+ if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780)
+ var r1 = range(txt, 1, 2).getBoundingClientRect();
+ return badBidiRects = (r1.right - r0.right < 3);
+ }
+
+ // See if "".split is the broken IE version, if so, provide an
+ // alternative way to split lines.
+ var splitLinesAuto = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
+ var pos = 0, result = [], l = string.length;
+ while (pos <= l) {
+ var nl = string.indexOf("\n", pos);
+ if (nl == -1) nl = string.length;
+ var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
+ var rt = line.indexOf("\r");
+ if (rt != -1) {
+ result.push(line.slice(0, rt));
+ pos += rt + 1;
+ } else {
+ result.push(line);
+ pos = nl + 1;
+ }
+ }
+ return result;
+ } : function(string){return string.split(/\r\n?|\n/);};
+
+ var hasSelection = window.getSelection ? function(te) {
+ try { return te.selectionStart != te.selectionEnd; }
+ catch(e) { return false; }
+ } : function(te) {
+ try {var range = te.ownerDocument.selection.createRange();}
+ catch(e) {}
+ if (!range || range.parentElement() != te) return false;
+ return range.compareEndPoints("StartToEnd", range) != 0;
+ };
+
+ var hasCopyEvent = (function() {
+ var e = elt("div");
+ if ("oncopy" in e) return true;
+ e.setAttribute("oncopy", "return;");
+ return typeof e.oncopy == "function";
+ })();
+
+ var badZoomedRects = null;
+ function hasBadZoomedRects(measure) {
+ if (badZoomedRects != null) return badZoomedRects;
+ var node = removeChildrenAndAdd(measure, elt("span", "x"));
+ var normal = node.getBoundingClientRect();
+ var fromRange = range(node, 0, 1).getBoundingClientRect();
+ return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1;
+ }
+
+ // KEY NAMES
+
+ var keyNames = CodeMirror.keyNames = {
+ 3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
+ 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
+ 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
+ 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
+ 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete",
+ 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
+ 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
+ 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
+ };
+ (function() {
+ // Number keys
+ for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i);
+ // Alphabetic keys
+ for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
+ // Function keys
+ for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
+ })();
+
+ // BIDI HELPERS
+
+ function iterateBidiSections(order, from, to, f) {
+ if (!order) return f(from, to, "ltr");
+ var found = false;
+ for (var i = 0; i < order.length; ++i) {
+ var part = order[i];
+ if (part.from < to && part.to > from || from == to && part.to == from) {
+ f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
+ found = true;
+ }
+ }
+ if (!found) f(from, to, "ltr");
+ }
+
+ function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
+ function bidiRight(part) { return part.level % 2 ? part.from : part.to; }
+
+ function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }
+ function lineRight(line) {
+ var order = getOrder(line);
+ if (!order) return line.text.length;
+ return bidiRight(lst(order));
+ }
+
+ function lineStart(cm, lineN) {
+ var line = getLine(cm.doc, lineN);
+ var visual = visualLine(line);
+ if (visual != line) lineN = lineNo(visual);
+ var order = getOrder(visual);
+ var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual);
+ return Pos(lineN, ch);
+ }
+ function lineEnd(cm, lineN) {
+ var merged, line = getLine(cm.doc, lineN);
+ while (merged = collapsedSpanAtEnd(line)) {
+ line = merged.find(1, true).line;
+ lineN = null;
+ }
+ var order = getOrder(line);
+ var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line);
+ return Pos(lineN == null ? lineNo(line) : lineN, ch);
+ }
+ function lineStartSmart(cm, pos) {
+ var start = lineStart(cm, pos.line);
+ var line = getLine(cm.doc, start.line);
+ var order = getOrder(line);
+ if (!order || order[0].level == 0) {
+ var firstNonWS = Math.max(0, line.text.search(/\S/));
+ var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
+ return Pos(start.line, inWS ? 0 : firstNonWS);
+ }
+ return start;
+ }
+
+ function compareBidiLevel(order, a, b) {
+ var linedir = order[0].level;
+ if (a == linedir) return true;
+ if (b == linedir) return false;
+ return a < b;
+ }
+ var bidiOther;
+ function getBidiPartAt(order, pos) {
+ bidiOther = null;
+ for (var i = 0, found; i < order.length; ++i) {
+ var cur = order[i];
+ if (cur.from < pos && cur.to > pos) return i;
+ if ((cur.from == pos || cur.to == pos)) {
+ if (found == null) {
+ found = i;
+ } else if (compareBidiLevel(order, cur.level, order[found].level)) {
+ if (cur.from != cur.to) bidiOther = found;
+ return i;
+ } else {
+ if (cur.from != cur.to) bidiOther = i;
+ return found;
+ }
+ }
+ }
+ return found;
+ }
+
+ function moveInLine(line, pos, dir, byUnit) {
+ if (!byUnit) return pos + dir;
+ do pos += dir;
+ while (pos > 0 && isExtendingChar(line.text.charAt(pos)));
+ return pos;
+ }
+
+ // This is needed in order to move 'visually' through bi-directional
+ // text -- i.e., pressing left should make the cursor go left, even
+ // when in RTL text. The tricky part is the 'jumps', where RTL and
+ // LTR text touch each other. This often requires the cursor offset
+ // to move more than one unit, in order to visually move one unit.
+ function moveVisually(line, start, dir, byUnit) {
+ var bidi = getOrder(line);
+ if (!bidi) return moveLogically(line, start, dir, byUnit);
+ var pos = getBidiPartAt(bidi, start), part = bidi[pos];
+ var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);
+
+ for (;;) {
+ if (target > part.from && target < part.to) return target;
+ if (target == part.from || target == part.to) {
+ if (getBidiPartAt(bidi, target) == pos) return target;
+ part = bidi[pos += dir];
+ return (dir > 0) == part.level % 2 ? part.to : part.from;
+ } else {
+ part = bidi[pos += dir];
+ if (!part) return null;
+ if ((dir > 0) == part.level % 2)
+ target = moveInLine(line, part.to, -1, byUnit);
+ else
+ target = moveInLine(line, part.from, 1, byUnit);
+ }
+ }
+ }
+
+ function moveLogically(line, start, dir, byUnit) {
+ var target = start + dir;
+ if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir;
+ return target < 0 || target > line.text.length ? null : target;
+ }
+
+ // Bidirectional ordering algorithm
+ // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
+ // that this (partially) implements.
+
+ // One-char codes used for character types:
+ // L (L): Left-to-Right
+ // R (R): Right-to-Left
+ // r (AL): Right-to-Left Arabic
+ // 1 (EN): European Number
+ // + (ES): European Number Separator
+ // % (ET): European Number Terminator
+ // n (AN): Arabic Number
+ // , (CS): Common Number Separator
+ // m (NSM): Non-Spacing Mark
+ // b (BN): Boundary Neutral
+ // s (B): Paragraph Separator
+ // t (S): Segment Separator
+ // w (WS): Whitespace
+ // N (ON): Other Neutrals
+
+ // Returns null if characters are ordered as they appear
+ // (left-to-right), or an array of sections ({from, to, level}
+ // objects) in the order in which they occur visually.
+ var bidiOrdering = (function() {
+ // Character types for codepoints 0 to 0xff
+ var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
+ // Character types for codepoints 0x600 to 0x6ff
+ var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm";
+ function charType(code) {
+ if (code <= 0xf7) return lowTypes.charAt(code);
+ else if (0x590 <= code && code <= 0x5f4) return "R";
+ else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600);
+ else if (0x6ee <= code && code <= 0x8ac) return "r";
+ else if (0x2000 <= code && code <= 0x200b) return "w";
+ else if (code == 0x200c) return "b";
+ else return "L";
+ }
+
+ var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
+ var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
+ // Browsers seem to always treat the boundaries of block elements as being L.
+ var outerType = "L";
+
+ function BidiSpan(level, from, to) {
+ this.level = level;
+ this.from = from; this.to = to;
+ }
+
+ return function(str) {
+ if (!bidiRE.test(str)) return false;
+ var len = str.length, types = [];
+ for (var i = 0, type; i < len; ++i)
+ types.push(type = charType(str.charCodeAt(i)));
+
+ // W1. Examine each non-spacing mark (NSM) in the level run, and
+ // change the type of the NSM to the type of the previous
+ // character. If the NSM is at the start of the level run, it will
+ // get the type of sor.
+ for (var i = 0, prev = outerType; i < len; ++i) {
+ var type = types[i];
+ if (type == "m") types[i] = prev;
+ else prev = type;
+ }
+
+ // W2. Search backwards from each instance of a European number
+ // until the first strong type (R, L, AL, or sor) is found. If an
+ // AL is found, change the type of the European number to Arabic
+ // number.
+ // W3. Change all ALs to R.
+ for (var i = 0, cur = outerType; i < len; ++i) {
+ var type = types[i];
+ if (type == "1" && cur == "r") types[i] = "n";
+ else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; }
+ }
+
+ // W4. A single European separator between two European numbers
+ // changes to a European number. A single common separator between
+ // two numbers of the same type changes to that type.
+ for (var i = 1, prev = types[0]; i < len - 1; ++i) {
+ var type = types[i];
+ if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1";
+ else if (type == "," && prev == types[i+1] &&
+ (prev == "1" || prev == "n")) types[i] = prev;
+ prev = type;
+ }
+
+ // W5. A sequence of European terminators adjacent to European
+ // numbers changes to all European numbers.
+ // W6. Otherwise, separators and terminators change to Other
+ // Neutral.
+ for (var i = 0; i < len; ++i) {
+ var type = types[i];
+ if (type == ",") types[i] = "N";
+ else if (type == "%") {
+ for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
+ var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
+ for (var j = i; j < end; ++j) types[j] = replace;
+ i = end - 1;
+ }
+ }
+
+ // W7. Search backwards from each instance of a European number
+ // until the first strong type (R, L, or sor) is found. If an L is
+ // found, then change the type of the European number to L.
+ for (var i = 0, cur = outerType; i < len; ++i) {
+ var type = types[i];
+ if (cur == "L" && type == "1") types[i] = "L";
+ else if (isStrong.test(type)) cur = type;
+ }
+
+ // N1. A sequence of neutrals takes the direction of the
+ // surrounding strong text if the text on both sides has the same
+ // direction. European and Arabic numbers act as if they were R in
+ // terms of their influence on neutrals. Start-of-level-run (sor)
+ // and end-of-level-run (eor) are used at level run boundaries.
+ // N2. Any remaining neutrals take the embedding direction.
+ for (var i = 0; i < len; ++i) {
+ if (isNeutral.test(types[i])) {
+ for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
+ var before = (i ? types[i-1] : outerType) == "L";
+ var after = (end < len ? types[end] : outerType) == "L";
+ var replace = before || after ? "L" : "R";
+ for (var j = i; j < end; ++j) types[j] = replace;
+ i = end - 1;
+ }
+ }
+
+ // Here we depart from the documented algorithm, in order to avoid
+ // building up an actual levels array. Since there are only three
+ // levels (0, 1, 2) in an implementation that doesn't take
+ // explicit embedding into account, we can build up the order on
+ // the fly, without following the level-based algorithm.
+ var order = [], m;
+ for (var i = 0; i < len;) {
+ if (countsAsLeft.test(types[i])) {
+ var start = i;
+ for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
+ order.push(new BidiSpan(0, start, i));
+ } else {
+ var pos = i, at = order.length;
+ for (++i; i < len && types[i] != "L"; ++i) {}
+ for (var j = pos; j < i;) {
+ if (countsAsNum.test(types[j])) {
+ if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j));
+ var nstart = j;
+ for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
+ order.splice(at, 0, new BidiSpan(2, nstart, j));
+ pos = j;
+ } else ++j;
+ }
+ if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i));
+ }
+ }
+ if (order[0].level == 1 && (m = str.match(/^\s+/))) {
+ order[0].from = m[0].length;
+ order.unshift(new BidiSpan(0, 0, m[0].length));
+ }
+ if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
+ lst(order).to -= m[0].length;
+ order.push(new BidiSpan(0, len - m[0].length, len));
+ }
+ if (order[0].level == 2)
+ order.unshift(new BidiSpan(1, order[0].to, order[0].to));
+ if (order[0].level != lst(order).level)
+ order.push(new BidiSpan(order[0].level, len, len));
+
+ return order;
+ };
+ })();
+
+ // THE END
+
+ CodeMirror.version = "5.15.2";
+
+ return CodeMirror;
+});
+
+},{}],11:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"), require("../markdown/markdown"), require("../../addon/mode/overlay"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror", "../markdown/markdown", "../../addon/mode/overlay"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+var urlRE = /^((?:(?:aaas?|about|acap|adiumxtra|af[ps]|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|cap|chrome(?:-extension)?|cid|coap|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-(?:playcontainer|playsingle)|dns|doi|dtn|dvb|ed2k|facetime|feed|file|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|hcp|https?|iax|icap|icon|im|imap|info|ipn|ipp|irc[6s]?|iris(?:\.beep|\.lwz|\.xpc|\.xpcs)?|itms|jar|javascript|jms|keyparc|lastfm|ldaps?|magnet|mailto|maps|market|message|mid|mms|ms-help|msnim|msrps?|mtqp|mumble|mupdate|mvn|news|nfs|nih?|nntp|notes|oid|opaquelocktoken|palm|paparazzi|platform|pop|pres|proxy|psyc|query|res(?:ource)?|rmi|rsync|rtmp|rtsp|secondlife|service|session|sftp|sgn|shttp|sieve|sips?|skype|sm[bs]|snmp|soap\.beeps?|soldat|spotify|ssh|steam|svn|tag|teamspeak|tel(?:net)?|tftp|things|thismessage|tip|tn3270|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|view-source|webcal|wss?|wtai|wyciwyg|xcon(?:-userid)?|xfire|xmlrpc\.beeps?|xmpp|xri|ymsgr|z39\.50[rs]?):(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]|\([^\s()<>]*\))+(?:\([^\s()<>]*\)|[^\s`*!()\[\]{};:'".,<>?«»“”‘’]))/i
+
+CodeMirror.defineMode("gfm", function(config, modeConfig) {
+ var codeDepth = 0;
+ function blankLine(state) {
+ state.code = false;
+ return null;
+ }
+ var gfmOverlay = {
+ startState: function() {
+ return {
+ code: false,
+ codeBlock: false,
+ ateSpace: false
+ };
+ },
+ copyState: function(s) {
+ return {
+ code: s.code,
+ codeBlock: s.codeBlock,
+ ateSpace: s.ateSpace
+ };
+ },
+ token: function(stream, state) {
+ state.combineTokens = null;
+
+ // Hack to prevent formatting override inside code blocks (block and inline)
+ if (state.codeBlock) {
+ if (stream.match(/^```+/)) {
+ state.codeBlock = false;
+ return null;
+ }
+ stream.skipToEnd();
+ return null;
+ }
+ if (stream.sol()) {
+ state.code = false;
+ }
+ if (stream.sol() && stream.match(/^```+/)) {
+ stream.skipToEnd();
+ state.codeBlock = true;
+ return null;
+ }
+ // If this block is changed, it may need to be updated in Markdown mode
+ if (stream.peek() === '`') {
+ stream.next();
+ var before = stream.pos;
+ stream.eatWhile('`');
+ var difference = 1 + stream.pos - before;
+ if (!state.code) {
+ codeDepth = difference;
+ state.code = true;
+ } else {
+ if (difference === codeDepth) { // Must be exact
+ state.code = false;
+ }
+ }
+ return null;
+ } else if (state.code) {
+ stream.next();
+ return null;
+ }
+ // Check if space. If so, links can be formatted later on
+ if (stream.eatSpace()) {
+ state.ateSpace = true;
+ return null;
+ }
+ if (stream.sol() || state.ateSpace) {
+ state.ateSpace = false;
+ if (modeConfig.gitHubSpice !== false) {
+ if(stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+@)?(?:[a-f0-9]{7,40}\b)/)) {
+ // User/Project@SHA
+ // User@SHA
+ // SHA
+ state.combineTokens = true;
+ return "link";
+ } else if (stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+)?#[0-9]+\b/)) {
+ // User/Project#Num
+ // User#Num
+ // #Num
+ state.combineTokens = true;
+ return "link";
+ }
+ }
+ }
+ if (stream.match(urlRE) &&
+ stream.string.slice(stream.start - 2, stream.start) != "](" &&
+ (stream.start == 0 || /\W/.test(stream.string.charAt(stream.start - 1)))) {
+ // URLs
+ // Taken from http://daringfireball.net/2010/07/improved_regex_for_matching_urls
+ // And then (issue #1160) simplified to make it not crash the Chrome Regexp engine
+ // And then limited url schemes to the CommonMark list, so foo:bar isn't matched as a URL
+ state.combineTokens = true;
+ return "link";
+ }
+ stream.next();
+ return null;
+ },
+ blankLine: blankLine
+ };
+
+ var markdownConfig = {
+ underscoresBreakWords: false,
+ taskLists: true,
+ fencedCodeBlocks: '```',
+ strikethrough: true
+ };
+ for (var attr in modeConfig) {
+ markdownConfig[attr] = modeConfig[attr];
+ }
+ markdownConfig.name = "markdown";
+ return CodeMirror.overlayMode(CodeMirror.getMode(config, markdownConfig), gfmOverlay);
+
+}, "markdown");
+
+ CodeMirror.defineMIME("text/x-gfm", "gfm");
+});
+
+},{"../../addon/mode/overlay":8,"../../lib/codemirror":10,"../markdown/markdown":12}],12:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"), require("../xml/xml"), require("../meta"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror", "../xml/xml", "../meta"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {
+
+ var htmlMode = CodeMirror.getMode(cmCfg, "text/html");
+ var htmlModeMissing = htmlMode.name == "null"
+
+ function getMode(name) {
+ if (CodeMirror.findModeByName) {
+ var found = CodeMirror.findModeByName(name);
+ if (found) name = found.mime || found.mimes[0];
+ }
+ var mode = CodeMirror.getMode(cmCfg, name);
+ return mode.name == "null" ? null : mode;
+ }
+
+ // Should characters that affect highlighting be highlighted separate?
+ // Does not include characters that will be output (such as `1.` and `-` for lists)
+ if (modeCfg.highlightFormatting === undefined)
+ modeCfg.highlightFormatting = false;
+
+ // Maximum number of nested blockquotes. Set to 0 for infinite nesting.
+ // Excess `>` will emit `error` token.
+ if (modeCfg.maxBlockquoteDepth === undefined)
+ modeCfg.maxBlockquoteDepth = 0;
+
+ // Should underscores in words open/close em/strong?
+ if (modeCfg.underscoresBreakWords === undefined)
+ modeCfg.underscoresBreakWords = true;
+
+ // Use `fencedCodeBlocks` to configure fenced code blocks. false to
+ // disable, string to specify a precise regexp that the fence should
+ // match, and true to allow three or more backticks or tildes (as
+ // per CommonMark).
+
+ // Turn on task lists? ("- [ ] " and "- [x] ")
+ if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;
+
+ // Turn on strikethrough syntax
+ if (modeCfg.strikethrough === undefined)
+ modeCfg.strikethrough = false;
+
+ // Allow token types to be overridden by user-provided token types.
+ if (modeCfg.tokenTypeOverrides === undefined)
+ modeCfg.tokenTypeOverrides = {};
+
+ var tokenTypes = {
+ header: "header",
+ code: "comment",
+ quote: "quote",
+ list1: "variable-2",
+ list2: "variable-3",
+ list3: "keyword",
+ hr: "hr",
+ image: "tag",
+ formatting: "formatting",
+ linkInline: "link",
+ linkEmail: "link",
+ linkText: "link",
+ linkHref: "string",
+ em: "em",
+ strong: "strong",
+ strikethrough: "strikethrough"
+ };
+
+ for (var tokenType in tokenTypes) {
+ if (tokenTypes.hasOwnProperty(tokenType) && modeCfg.tokenTypeOverrides[tokenType]) {
+ tokenTypes[tokenType] = modeCfg.tokenTypeOverrides[tokenType];
+ }
+ }
+
+ var hrRE = /^([*\-_])(?:\s*\1){2,}\s*$/
+ , ulRE = /^[*\-+]\s+/
+ , olRE = /^[0-9]+([.)])\s+/
+ , taskListRE = /^\[(x| )\](?=\s)/ // Must follow ulRE or olRE
+ , atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/
+ , setextHeaderRE = /^ *(?:\={1,}|-{1,})\s*$/
+ , textRE = /^[^#!\[\]*_\\<>` "'(~]+/
+ , fencedCodeRE = new RegExp("^(" + (modeCfg.fencedCodeBlocks === true ? "~~~+|```+" : modeCfg.fencedCodeBlocks) +
+ ")[ \\t]*([\\w+#\-]*)");
+
+ function switchInline(stream, state, f) {
+ state.f = state.inline = f;
+ return f(stream, state);
+ }
+
+ function switchBlock(stream, state, f) {
+ state.f = state.block = f;
+ return f(stream, state);
+ }
+
+ function lineIsEmpty(line) {
+ return !line || !/\S/.test(line.string)
+ }
+
+ // Blocks
+
+ function blankLine(state) {
+ // Reset linkTitle state
+ state.linkTitle = false;
+ // Reset EM state
+ state.em = false;
+ // Reset STRONG state
+ state.strong = false;
+ // Reset strikethrough state
+ state.strikethrough = false;
+ // Reset state.quote
+ state.quote = 0;
+ // Reset state.indentedCode
+ state.indentedCode = false;
+ if (htmlModeMissing && state.f == htmlBlock) {
+ state.f = inlineNormal;
+ state.block = blockNormal;
+ }
+ // Reset state.trailingSpace
+ state.trailingSpace = 0;
+ state.trailingSpaceNewLine = false;
+ // Mark this line as blank
+ state.prevLine = state.thisLine
+ state.thisLine = null
+ return null;
+ }
+
+ function blockNormal(stream, state) {
+
+ var sol = stream.sol();
+
+ var prevLineIsList = state.list !== false,
+ prevLineIsIndentedCode = state.indentedCode;
+
+ state.indentedCode = false;
+
+ if (prevLineIsList) {
+ if (state.indentationDiff >= 0) { // Continued list
+ if (state.indentationDiff < 4) { // Only adjust indentation if *not* a code block
+ state.indentation -= state.indentationDiff;
+ }
+ state.list = null;
+ } else if (state.indentation > 0) {
+ state.list = null;
+ } else { // No longer a list
+ state.list = false;
+ }
+ }
+
+ var match = null;
+ if (state.indentationDiff >= 4) {
+ stream.skipToEnd();
+ if (prevLineIsIndentedCode || lineIsEmpty(state.prevLine)) {
+ state.indentation -= 4;
+ state.indentedCode = true;
+ return tokenTypes.code;
+ } else {
+ return null;
+ }
+ } else if (stream.eatSpace()) {
+ return null;
+ } else if ((match = stream.match(atxHeaderRE)) && match[1].length <= 6) {
+ state.header = match[1].length;
+ if (modeCfg.highlightFormatting) state.formatting = "header";
+ state.f = state.inline;
+ return getType(state);
+ } else if (!lineIsEmpty(state.prevLine) && !state.quote && !prevLineIsList &&
+ !prevLineIsIndentedCode && (match = stream.match(setextHeaderRE))) {
+ state.header = match[0].charAt(0) == '=' ? 1 : 2;
+ if (modeCfg.highlightFormatting) state.formatting = "header";
+ state.f = state.inline;
+ return getType(state);
+ } else if (stream.eat('>')) {
+ state.quote = sol ? 1 : state.quote + 1;
+ if (modeCfg.highlightFormatting) state.formatting = "quote";
+ stream.eatSpace();
+ return getType(state);
+ } else if (stream.peek() === '[') {
+ return switchInline(stream, state, footnoteLink);
+ } else if (stream.match(hrRE, true)) {
+ state.hr = true;
+ return tokenTypes.hr;
+ } else if ((lineIsEmpty(state.prevLine) || prevLineIsList) && (stream.match(ulRE, false) || stream.match(olRE, false))) {
+ var listType = null;
+ if (stream.match(ulRE, true)) {
+ listType = 'ul';
+ } else {
+ stream.match(olRE, true);
+ listType = 'ol';
+ }
+ state.indentation = stream.column() + stream.current().length;
+ state.list = true;
+
+ // While this list item's marker's indentation
+ // is less than the deepest list item's content's indentation,
+ // pop the deepest list item indentation off the stack.
+ while (state.listStack && stream.column() < state.listStack[state.listStack.length - 1]) {
+ state.listStack.pop();
+ }
+
+ // Add this list item's content's indentation to the stack
+ state.listStack.push(state.indentation);
+
+ if (modeCfg.taskLists && stream.match(taskListRE, false)) {
+ state.taskList = true;
+ }
+ state.f = state.inline;
+ if (modeCfg.highlightFormatting) state.formatting = ["list", "list-" + listType];
+ return getType(state);
+ } else if (modeCfg.fencedCodeBlocks && (match = stream.match(fencedCodeRE, true))) {
+ state.fencedChars = match[1]
+ // try switching mode
+ state.localMode = getMode(match[2]);
+ if (state.localMode) state.localState = CodeMirror.startState(state.localMode);
+ state.f = state.block = local;
+ if (modeCfg.highlightFormatting) state.formatting = "code-block";
+ state.code = -1
+ return getType(state);
+ }
+
+ return switchInline(stream, state, state.inline);
+ }
+
+ function htmlBlock(stream, state) {
+ var style = htmlMode.token(stream, state.htmlState);
+ if (!htmlModeMissing) {
+ var inner = CodeMirror.innerMode(htmlMode, state.htmlState)
+ if ((inner.mode.name == "xml" && inner.state.tagStart === null &&
+ (!inner.state.context && inner.state.tokenize.isInText)) ||
+ (state.md_inside && stream.current().indexOf(">") > -1)) {
+ state.f = inlineNormal;
+ state.block = blockNormal;
+ state.htmlState = null;
+ }
+ }
+ return style;
+ }
+
+ function local(stream, state) {
+ if (state.fencedChars && stream.match(state.fencedChars, false)) {
+ state.localMode = state.localState = null;
+ state.f = state.block = leavingLocal;
+ return null;
+ } else if (state.localMode) {
+ return state.localMode.token(stream, state.localState);
+ } else {
+ stream.skipToEnd();
+ return tokenTypes.code;
+ }
+ }
+
+ function leavingLocal(stream, state) {
+ stream.match(state.fencedChars);
+ state.block = blockNormal;
+ state.f = inlineNormal;
+ state.fencedChars = null;
+ if (modeCfg.highlightFormatting) state.formatting = "code-block";
+ state.code = 1
+ var returnType = getType(state);
+ state.code = 0
+ return returnType;
+ }
+
+ // Inline
+ function getType(state) {
+ var styles = [];
+
+ if (state.formatting) {
+ styles.push(tokenTypes.formatting);
+
+ if (typeof state.formatting === "string") state.formatting = [state.formatting];
+
+ for (var i = 0; i < state.formatting.length; i++) {
+ styles.push(tokenTypes.formatting + "-" + state.formatting[i]);
+
+ if (state.formatting[i] === "header") {
+ styles.push(tokenTypes.formatting + "-" + state.formatting[i] + "-" + state.header);
+ }
+
+ // Add `formatting-quote` and `formatting-quote-#` for blockquotes
+ // Add `error` instead if the maximum blockquote nesting depth is passed
+ if (state.formatting[i] === "quote") {
+ if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
+ styles.push(tokenTypes.formatting + "-" + state.formatting[i] + "-" + state.quote);
+ } else {
+ styles.push("error");
+ }
+ }
+ }
+ }
+
+ if (state.taskOpen) {
+ styles.push("meta");
+ return styles.length ? styles.join(' ') : null;
+ }
+ if (state.taskClosed) {
+ styles.push("property");
+ return styles.length ? styles.join(' ') : null;
+ }
+
+ if (state.linkHref) {
+ styles.push(tokenTypes.linkHref, "url");
+ } else { // Only apply inline styles to non-url text
+ if (state.strong) { styles.push(tokenTypes.strong); }
+ if (state.em) { styles.push(tokenTypes.em); }
+ if (state.strikethrough) { styles.push(tokenTypes.strikethrough); }
+ if (state.linkText) { styles.push(tokenTypes.linkText); }
+ if (state.code) { styles.push(tokenTypes.code); }
+ }
+
+ if (state.header) { styles.push(tokenTypes.header, tokenTypes.header + "-" + state.header); }
+
+ if (state.quote) {
+ styles.push(tokenTypes.quote);
+
+ // Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth
+ if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
+ styles.push(tokenTypes.quote + "-" + state.quote);
+ } else {
+ styles.push(tokenTypes.quote + "-" + modeCfg.maxBlockquoteDepth);
+ }
+ }
+
+ if (state.list !== false) {
+ var listMod = (state.listStack.length - 1) % 3;
+ if (!listMod) {
+ styles.push(tokenTypes.list1);
+ } else if (listMod === 1) {
+ styles.push(tokenTypes.list2);
+ } else {
+ styles.push(tokenTypes.list3);
+ }
+ }
+
+ if (state.trailingSpaceNewLine) {
+ styles.push("trailing-space-new-line");
+ } else if (state.trailingSpace) {
+ styles.push("trailing-space-" + (state.trailingSpace % 2 ? "a" : "b"));
+ }
+
+ return styles.length ? styles.join(' ') : null;
+ }
+
+ function handleText(stream, state) {
+ if (stream.match(textRE, true)) {
+ return getType(state);
+ }
+ return undefined;
+ }
+
+ function inlineNormal(stream, state) {
+ var style = state.text(stream, state);
+ if (typeof style !== 'undefined')
+ return style;
+
+ if (state.list) { // List marker (*, +, -, 1., etc)
+ state.list = null;
+ return getType(state);
+ }
+
+ if (state.taskList) {
+ var taskOpen = stream.match(taskListRE, true)[1] !== "x";
+ if (taskOpen) state.taskOpen = true;
+ else state.taskClosed = true;
+ if (modeCfg.highlightFormatting) state.formatting = "task";
+ state.taskList = false;
+ return getType(state);
+ }
+
+ state.taskOpen = false;
+ state.taskClosed = false;
+
+ if (state.header && stream.match(/^#+$/, true)) {
+ if (modeCfg.highlightFormatting) state.formatting = "header";
+ return getType(state);
+ }
+
+ // Get sol() value now, before character is consumed
+ var sol = stream.sol();
+
+ var ch = stream.next();
+
+ // Matches link titles present on next line
+ if (state.linkTitle) {
+ state.linkTitle = false;
+ var matchCh = ch;
+ if (ch === '(') {
+ matchCh = ')';
+ }
+ matchCh = (matchCh+'').replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
+ var regex = '^\\s*(?:[^' + matchCh + '\\\\]+|\\\\\\\\|\\\\.)' + matchCh;
+ if (stream.match(new RegExp(regex), true)) {
+ return tokenTypes.linkHref;
+ }
+ }
+
+ // If this block is changed, it may need to be updated in GFM mode
+ if (ch === '`') {
+ var previousFormatting = state.formatting;
+ if (modeCfg.highlightFormatting) state.formatting = "code";
+ stream.eatWhile('`');
+ var count = stream.current().length
+ if (state.code == 0) {
+ state.code = count
+ return getType(state)
+ } else if (count == state.code) { // Must be exact
+ var t = getType(state)
+ state.code = 0
+ return t
+ } else {
+ state.formatting = previousFormatting
+ return getType(state)
+ }
+ } else if (state.code) {
+ return getType(state);
+ }
+
+ if (ch === '\\') {
+ stream.next();
+ if (modeCfg.highlightFormatting) {
+ var type = getType(state);
+ var formattingEscape = tokenTypes.formatting + "-escape";
+ return type ? type + " " + formattingEscape : formattingEscape;
+ }
+ }
+
+ if (ch === '!' && stream.match(/\[[^\]]*\] ?(?:\(|\[)/, false)) {
+ stream.match(/\[[^\]]*\]/);
+ state.inline = state.f = linkHref;
+ return tokenTypes.image;
+ }
+
+ if (ch === '[' && stream.match(/[^\]]*\](\(.*\)| ?\[.*?\])/, false)) {
+ state.linkText = true;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ return getType(state);
+ }
+
+ if (ch === ']' && state.linkText && stream.match(/\(.*?\)| ?\[.*?\]/, false)) {
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ state.linkText = false;
+ state.inline = state.f = linkHref;
+ return type;
+ }
+
+ if (ch === '<' && stream.match(/^(https?|ftps?):\/\/(?:[^\\>]|\\.)+>/, false)) {
+ state.f = state.inline = linkInline;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ if (type){
+ type += " ";
+ } else {
+ type = "";
+ }
+ return type + tokenTypes.linkInline;
+ }
+
+ if (ch === '<' && stream.match(/^[^> \\]+@(?:[^\\>]|\\.)+>/, false)) {
+ state.f = state.inline = linkInline;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ if (type){
+ type += " ";
+ } else {
+ type = "";
+ }
+ return type + tokenTypes.linkEmail;
+ }
+
+ if (ch === '<' && stream.match(/^(!--|\w)/, false)) {
+ var end = stream.string.indexOf(">", stream.pos);
+ if (end != -1) {
+ var atts = stream.string.substring(stream.start, end);
+ if (/markdown\s*=\s*('|"){0,1}1('|"){0,1}/.test(atts)) state.md_inside = true;
+ }
+ stream.backUp(1);
+ state.htmlState = CodeMirror.startState(htmlMode);
+ return switchBlock(stream, state, htmlBlock);
+ }
+
+ if (ch === '<' && stream.match(/^\/\w*?>/)) {
+ state.md_inside = false;
+ return "tag";
+ }
+
+ var ignoreUnderscore = false;
+ if (!modeCfg.underscoresBreakWords) {
+ if (ch === '_' && stream.peek() !== '_' && stream.match(/(\w)/, false)) {
+ var prevPos = stream.pos - 2;
+ if (prevPos >= 0) {
+ var prevCh = stream.string.charAt(prevPos);
+ if (prevCh !== '_' && prevCh.match(/(\w)/, false)) {
+ ignoreUnderscore = true;
+ }
+ }
+ }
+ }
+ if (ch === '*' || (ch === '_' && !ignoreUnderscore)) {
+ if (sol && stream.peek() === ' ') {
+ // Do nothing, surrounded by newline and space
+ } else if (state.strong === ch && stream.eat(ch)) { // Remove STRONG
+ if (modeCfg.highlightFormatting) state.formatting = "strong";
+ var t = getType(state);
+ state.strong = false;
+ return t;
+ } else if (!state.strong && stream.eat(ch)) { // Add STRONG
+ state.strong = ch;
+ if (modeCfg.highlightFormatting) state.formatting = "strong";
+ return getType(state);
+ } else if (state.em === ch) { // Remove EM
+ if (modeCfg.highlightFormatting) state.formatting = "em";
+ var t = getType(state);
+ state.em = false;
+ return t;
+ } else if (!state.em) { // Add EM
+ state.em = ch;
+ if (modeCfg.highlightFormatting) state.formatting = "em";
+ return getType(state);
+ }
+ } else if (ch === ' ') {
+ if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces
+ if (stream.peek() === ' ') { // Surrounded by spaces, ignore
+ return getType(state);
+ } else { // Not surrounded by spaces, back up pointer
+ stream.backUp(1);
+ }
+ }
+ }
+
+ if (modeCfg.strikethrough) {
+ if (ch === '~' && stream.eatWhile(ch)) {
+ if (state.strikethrough) {// Remove strikethrough
+ if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
+ var t = getType(state);
+ state.strikethrough = false;
+ return t;
+ } else if (stream.match(/^[^\s]/, false)) {// Add strikethrough
+ state.strikethrough = true;
+ if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
+ return getType(state);
+ }
+ } else if (ch === ' ') {
+ if (stream.match(/^~~/, true)) { // Probably surrounded by space
+ if (stream.peek() === ' ') { // Surrounded by spaces, ignore
+ return getType(state);
+ } else { // Not surrounded by spaces, back up pointer
+ stream.backUp(2);
+ }
+ }
+ }
+ }
+
+ if (ch === ' ') {
+ if (stream.match(/ +$/, false)) {
+ state.trailingSpace++;
+ } else if (state.trailingSpace) {
+ state.trailingSpaceNewLine = true;
+ }
+ }
+
+ return getType(state);
+ }
+
+ function linkInline(stream, state) {
+ var ch = stream.next();
+
+ if (ch === ">") {
+ state.f = state.inline = inlineNormal;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ if (type){
+ type += " ";
+ } else {
+ type = "";
+ }
+ return type + tokenTypes.linkInline;
+ }
+
+ stream.match(/^[^>]+/, true);
+
+ return tokenTypes.linkInline;
+ }
+
+ function linkHref(stream, state) {
+ // Check if space, and return NULL if so (to avoid marking the space)
+ if(stream.eatSpace()){
+ return null;
+ }
+ var ch = stream.next();
+ if (ch === '(' || ch === '[') {
+ state.f = state.inline = getLinkHrefInside(ch === "(" ? ")" : "]", 0);
+ if (modeCfg.highlightFormatting) state.formatting = "link-string";
+ state.linkHref = true;
+ return getType(state);
+ }
+ return 'error';
+ }
+
+ var linkRE = {
+ ")": /^(?:[^\\\(\)]|\\.|\((?:[^\\\(\)]|\\.)*\))*?(?=\))/,
+ "]": /^(?:[^\\\[\]]|\\.|\[(?:[^\\\[\\]]|\\.)*\])*?(?=\])/
+ }
+
+ function getLinkHrefInside(endChar) {
+ return function(stream, state) {
+ var ch = stream.next();
+
+ if (ch === endChar) {
+ state.f = state.inline = inlineNormal;
+ if (modeCfg.highlightFormatting) state.formatting = "link-string";
+ var returnState = getType(state);
+ state.linkHref = false;
+ return returnState;
+ }
+
+ stream.match(linkRE[endChar])
+ state.linkHref = true;
+ return getType(state);
+ };
+ }
+
+ function footnoteLink(stream, state) {
+ if (stream.match(/^([^\]\\]|\\.)*\]:/, false)) {
+ state.f = footnoteLinkInside;
+ stream.next(); // Consume [
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ state.linkText = true;
+ return getType(state);
+ }
+ return switchInline(stream, state, inlineNormal);
+ }
+
+ function footnoteLinkInside(stream, state) {
+ if (stream.match(/^\]:/, true)) {
+ state.f = state.inline = footnoteUrl;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var returnType = getType(state);
+ state.linkText = false;
+ return returnType;
+ }
+
+ stream.match(/^([^\]\\]|\\.)+/, true);
+
+ return tokenTypes.linkText;
+ }
+
+ function footnoteUrl(stream, state) {
+ // Check if space, and return NULL if so (to avoid marking the space)
+ if(stream.eatSpace()){
+ return null;
+ }
+ // Match URL
+ stream.match(/^[^\s]+/, true);
+ // Check for link title
+ if (stream.peek() === undefined) { // End of line, set flag to check next line
+ state.linkTitle = true;
+ } else { // More content on line, check if link title
+ stream.match(/^(?:\s+(?:"(?:[^"\\]|\\\\|\\.)+"|'(?:[^'\\]|\\\\|\\.)+'|\((?:[^)\\]|\\\\|\\.)+\)))?/, true);
+ }
+ state.f = state.inline = inlineNormal;
+ return tokenTypes.linkHref + " url";
+ }
+
+ var mode = {
+ startState: function() {
+ return {
+ f: blockNormal,
+
+ prevLine: null,
+ thisLine: null,
+
+ block: blockNormal,
+ htmlState: null,
+ indentation: 0,
+
+ inline: inlineNormal,
+ text: handleText,
+
+ formatting: false,
+ linkText: false,
+ linkHref: false,
+ linkTitle: false,
+ code: 0,
+ em: false,
+ strong: false,
+ header: 0,
+ hr: false,
+ taskList: false,
+ list: false,
+ listStack: [],
+ quote: 0,
+ trailingSpace: 0,
+ trailingSpaceNewLine: false,
+ strikethrough: false,
+ fencedChars: null
+ };
+ },
+
+ copyState: function(s) {
+ return {
+ f: s.f,
+
+ prevLine: s.prevLine,
+ thisLine: s.thisLine,
+
+ block: s.block,
+ htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),
+ indentation: s.indentation,
+
+ localMode: s.localMode,
+ localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,
+
+ inline: s.inline,
+ text: s.text,
+ formatting: false,
+ linkTitle: s.linkTitle,
+ code: s.code,
+ em: s.em,
+ strong: s.strong,
+ strikethrough: s.strikethrough,
+ header: s.header,
+ hr: s.hr,
+ taskList: s.taskList,
+ list: s.list,
+ listStack: s.listStack.slice(0),
+ quote: s.quote,
+ indentedCode: s.indentedCode,
+ trailingSpace: s.trailingSpace,
+ trailingSpaceNewLine: s.trailingSpaceNewLine,
+ md_inside: s.md_inside,
+ fencedChars: s.fencedChars
+ };
+ },
+
+ token: function(stream, state) {
+
+ // Reset state.formatting
+ state.formatting = false;
+
+ if (stream != state.thisLine) {
+ var forceBlankLine = state.header || state.hr;
+
+ // Reset state.header and state.hr
+ state.header = 0;
+ state.hr = false;
+
+ if (stream.match(/^\s*$/, true) || forceBlankLine) {
+ blankLine(state);
+ if (!forceBlankLine) return null
+ state.prevLine = null
+ }
+
+ state.prevLine = state.thisLine
+ state.thisLine = stream
+
+ // Reset state.taskList
+ state.taskList = false;
+
+ // Reset state.trailingSpace
+ state.trailingSpace = 0;
+ state.trailingSpaceNewLine = false;
+
+ state.f = state.block;
+ var indentation = stream.match(/^\s*/, true)[0].replace(/\t/g, ' ').length;
+ state.indentationDiff = Math.min(indentation - state.indentation, 4);
+ state.indentation = state.indentation + state.indentationDiff;
+ if (indentation > 0) return null;
+ }
+ return state.f(stream, state);
+ },
+
+ innerMode: function(state) {
+ if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};
+ if (state.localState) return {state: state.localState, mode: state.localMode};
+ return {state: state, mode: mode};
+ },
+
+ blankLine: blankLine,
+
+ getType: getType,
+
+ fold: "markdown"
+ };
+ return mode;
+}, "xml");
+
+CodeMirror.defineMIME("text/x-markdown", "markdown");
+
+});
+
+},{"../../lib/codemirror":10,"../meta":13,"../xml/xml":14}],13:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ CodeMirror.modeInfo = [
+ {name: "APL", mime: "text/apl", mode: "apl", ext: ["dyalog", "apl"]},
+ {name: "PGP", mimes: ["application/pgp", "application/pgp-keys", "application/pgp-signature"], mode: "asciiarmor", ext: ["pgp"]},
+ {name: "ASN.1", mime: "text/x-ttcn-asn", mode: "asn.1", ext: ["asn", "asn1"]},
+ {name: "Asterisk", mime: "text/x-asterisk", mode: "asterisk", file: /^extensions\.conf$/i},
+ {name: "Brainfuck", mime: "text/x-brainfuck", mode: "brainfuck", ext: ["b", "bf"]},
+ {name: "C", mime: "text/x-csrc", mode: "clike", ext: ["c", "h"]},
+ {name: "C++", mime: "text/x-c++src", mode: "clike", ext: ["cpp", "c++", "cc", "cxx", "hpp", "h++", "hh", "hxx"], alias: ["cpp"]},
+ {name: "Cobol", mime: "text/x-cobol", mode: "cobol", ext: ["cob", "cpy"]},
+ {name: "C#", mime: "text/x-csharp", mode: "clike", ext: ["cs"], alias: ["csharp"]},
+ {name: "Clojure", mime: "text/x-clojure", mode: "clojure", ext: ["clj", "cljc", "cljx"]},
+ {name: "ClojureScript", mime: "text/x-clojurescript", mode: "clojure", ext: ["cljs"]},
+ {name: "Closure Stylesheets (GSS)", mime: "text/x-gss", mode: "css", ext: ["gss"]},
+ {name: "CMake", mime: "text/x-cmake", mode: "cmake", ext: ["cmake", "cmake.in"], file: /^CMakeLists.txt$/},
+ {name: "CoffeeScript", mime: "text/x-coffeescript", mode: "coffeescript", ext: ["coffee"], alias: ["coffee", "coffee-script"]},
+ {name: "Common Lisp", mime: "text/x-common-lisp", mode: "commonlisp", ext: ["cl", "lisp", "el"], alias: ["lisp"]},
+ {name: "Cypher", mime: "application/x-cypher-query", mode: "cypher", ext: ["cyp", "cypher"]},
+ {name: "Cython", mime: "text/x-cython", mode: "python", ext: ["pyx", "pxd", "pxi"]},
+ {name: "Crystal", mime: "text/x-crystal", mode: "crystal", ext: ["cr"]},
+ {name: "CSS", mime: "text/css", mode: "css", ext: ["css"]},
+ {name: "CQL", mime: "text/x-cassandra", mode: "sql", ext: ["cql"]},
+ {name: "D", mime: "text/x-d", mode: "d", ext: ["d"]},
+ {name: "Dart", mimes: ["application/dart", "text/x-dart"], mode: "dart", ext: ["dart"]},
+ {name: "diff", mime: "text/x-diff", mode: "diff", ext: ["diff", "patch"]},
+ {name: "Django", mime: "text/x-django", mode: "django"},
+ {name: "Dockerfile", mime: "text/x-dockerfile", mode: "dockerfile", file: /^Dockerfile$/},
+ {name: "DTD", mime: "application/xml-dtd", mode: "dtd", ext: ["dtd"]},
+ {name: "Dylan", mime: "text/x-dylan", mode: "dylan", ext: ["dylan", "dyl", "intr"]},
+ {name: "EBNF", mime: "text/x-ebnf", mode: "ebnf"},
+ {name: "ECL", mime: "text/x-ecl", mode: "ecl", ext: ["ecl"]},
+ {name: "edn", mime: "application/edn", mode: "clojure", ext: ["edn"]},
+ {name: "Eiffel", mime: "text/x-eiffel", mode: "eiffel", ext: ["e"]},
+ {name: "Elm", mime: "text/x-elm", mode: "elm", ext: ["elm"]},
+ {name: "Embedded Javascript", mime: "application/x-ejs", mode: "htmlembedded", ext: ["ejs"]},
+ {name: "Embedded Ruby", mime: "application/x-erb", mode: "htmlembedded", ext: ["erb"]},
+ {name: "Erlang", mime: "text/x-erlang", mode: "erlang", ext: ["erl"]},
+ {name: "Factor", mime: "text/x-factor", mode: "factor", ext: ["factor"]},
+ {name: "FCL", mime: "text/x-fcl", mode: "fcl"},
+ {name: "Forth", mime: "text/x-forth", mode: "forth", ext: ["forth", "fth", "4th"]},
+ {name: "Fortran", mime: "text/x-fortran", mode: "fortran", ext: ["f", "for", "f77", "f90"]},
+ {name: "F#", mime: "text/x-fsharp", mode: "mllike", ext: ["fs"], alias: ["fsharp"]},
+ {name: "Gas", mime: "text/x-gas", mode: "gas", ext: ["s"]},
+ {name: "Gherkin", mime: "text/x-feature", mode: "gherkin", ext: ["feature"]},
+ {name: "GitHub Flavored Markdown", mime: "text/x-gfm", mode: "gfm", file: /^(readme|contributing|history).md$/i},
+ {name: "Go", mime: "text/x-go", mode: "go", ext: ["go"]},
+ {name: "Groovy", mime: "text/x-groovy", mode: "groovy", ext: ["groovy", "gradle"]},
+ {name: "HAML", mime: "text/x-haml", mode: "haml", ext: ["haml"]},
+ {name: "Haskell", mime: "text/x-haskell", mode: "haskell", ext: ["hs"]},
+ {name: "Haskell (Literate)", mime: "text/x-literate-haskell", mode: "haskell-literate", ext: ["lhs"]},
+ {name: "Haxe", mime: "text/x-haxe", mode: "haxe", ext: ["hx"]},
+ {name: "HXML", mime: "text/x-hxml", mode: "haxe", ext: ["hxml"]},
+ {name: "ASP.NET", mime: "application/x-aspx", mode: "htmlembedded", ext: ["aspx"], alias: ["asp", "aspx"]},
+ {name: "HTML", mime: "text/html", mode: "htmlmixed", ext: ["html", "htm"], alias: ["xhtml"]},
+ {name: "HTTP", mime: "message/http", mode: "http"},
+ {name: "IDL", mime: "text/x-idl", mode: "idl", ext: ["pro"]},
+ {name: "Jade", mime: "text/x-jade", mode: "jade", ext: ["jade"]},
+ {name: "Java", mime: "text/x-java", mode: "clike", ext: ["java"]},
+ {name: "Java Server Pages", mime: "application/x-jsp", mode: "htmlembedded", ext: ["jsp"], alias: ["jsp"]},
+ {name: "JavaScript", mimes: ["text/javascript", "text/ecmascript", "application/javascript", "application/x-javascript", "application/ecmascript"],
+ mode: "javascript", ext: ["js"], alias: ["ecmascript", "js", "node"]},
+ {name: "JSON", mimes: ["application/json", "application/x-json"], mode: "javascript", ext: ["json", "map"], alias: ["json5"]},
+ {name: "JSON-LD", mime: "application/ld+json", mode: "javascript", ext: ["jsonld"], alias: ["jsonld"]},
+ {name: "JSX", mime: "text/jsx", mode: "jsx", ext: ["jsx"]},
+ {name: "Jinja2", mime: "null", mode: "jinja2"},
+ {name: "Julia", mime: "text/x-julia", mode: "julia", ext: ["jl"]},
+ {name: "Kotlin", mime: "text/x-kotlin", mode: "clike", ext: ["kt"]},
+ {name: "LESS", mime: "text/x-less", mode: "css", ext: ["less"]},
+ {name: "LiveScript", mime: "text/x-livescript", mode: "livescript", ext: ["ls"], alias: ["ls"]},
+ {name: "Lua", mime: "text/x-lua", mode: "lua", ext: ["lua"]},
+ {name: "Markdown", mime: "text/x-markdown", mode: "markdown", ext: ["markdown", "md", "mkd"]},
+ {name: "mIRC", mime: "text/mirc", mode: "mirc"},
+ {name: "MariaDB SQL", mime: "text/x-mariadb", mode: "sql"},
+ {name: "Mathematica", mime: "text/x-mathematica", mode: "mathematica", ext: ["m", "nb"]},
+ {name: "Modelica", mime: "text/x-modelica", mode: "modelica", ext: ["mo"]},
+ {name: "MUMPS", mime: "text/x-mumps", mode: "mumps", ext: ["mps"]},
+ {name: "MS SQL", mime: "text/x-mssql", mode: "sql"},
+ {name: "mbox", mime: "application/mbox", mode: "mbox", ext: ["mbox"]},
+ {name: "MySQL", mime: "text/x-mysql", mode: "sql"},
+ {name: "Nginx", mime: "text/x-nginx-conf", mode: "nginx", file: /nginx.*\.conf$/i},
+ {name: "NSIS", mime: "text/x-nsis", mode: "nsis", ext: ["nsh", "nsi"]},
+ {name: "NTriples", mime: "text/n-triples", mode: "ntriples", ext: ["nt"]},
+ {name: "Objective C", mime: "text/x-objectivec", mode: "clike", ext: ["m", "mm"], alias: ["objective-c", "objc"]},
+ {name: "OCaml", mime: "text/x-ocaml", mode: "mllike", ext: ["ml", "mli", "mll", "mly"]},
+ {name: "Octave", mime: "text/x-octave", mode: "octave", ext: ["m"]},
+ {name: "Oz", mime: "text/x-oz", mode: "oz", ext: ["oz"]},
+ {name: "Pascal", mime: "text/x-pascal", mode: "pascal", ext: ["p", "pas"]},
+ {name: "PEG.js", mime: "null", mode: "pegjs", ext: ["jsonld"]},
+ {name: "Perl", mime: "text/x-perl", mode: "perl", ext: ["pl", "pm"]},
+ {name: "PHP", mime: "application/x-httpd-php", mode: "php", ext: ["php", "php3", "php4", "php5", "phtml"]},
+ {name: "Pig", mime: "text/x-pig", mode: "pig", ext: ["pig"]},
+ {name: "Plain Text", mime: "text/plain", mode: "null", ext: ["txt", "text", "conf", "def", "list", "log"]},
+ {name: "PLSQL", mime: "text/x-plsql", mode: "sql", ext: ["pls"]},
+ {name: "PowerShell", mime: "application/x-powershell", mode: "powershell", ext: ["ps1", "psd1", "psm1"]},
+ {name: "Properties files", mime: "text/x-properties", mode: "properties", ext: ["properties", "ini", "in"], alias: ["ini", "properties"]},
+ {name: "ProtoBuf", mime: "text/x-protobuf", mode: "protobuf", ext: ["proto"]},
+ {name: "Python", mime: "text/x-python", mode: "python", ext: ["BUILD", "bzl", "py", "pyw"], file: /^(BUCK|BUILD)$/},
+ {name: "Puppet", mime: "text/x-puppet", mode: "puppet", ext: ["pp"]},
+ {name: "Q", mime: "text/x-q", mode: "q", ext: ["q"]},
+ {name: "R", mime: "text/x-rsrc", mode: "r", ext: ["r"], alias: ["rscript"]},
+ {name: "reStructuredText", mime: "text/x-rst", mode: "rst", ext: ["rst"], alias: ["rst"]},
+ {name: "RPM Changes", mime: "text/x-rpm-changes", mode: "rpm"},
+ {name: "RPM Spec", mime: "text/x-rpm-spec", mode: "rpm", ext: ["spec"]},
+ {name: "Ruby", mime: "text/x-ruby", mode: "ruby", ext: ["rb"], alias: ["jruby", "macruby", "rake", "rb", "rbx"]},
+ {name: "Rust", mime: "text/x-rustsrc", mode: "rust", ext: ["rs"]},
+ {name: "SAS", mime: "text/x-sas", mode: "sas", ext: ["sas"]},
+ {name: "Sass", mime: "text/x-sass", mode: "sass", ext: ["sass"]},
+ {name: "Scala", mime: "text/x-scala", mode: "clike", ext: ["scala"]},
+ {name: "Scheme", mime: "text/x-scheme", mode: "scheme", ext: ["scm", "ss"]},
+ {name: "SCSS", mime: "text/x-scss", mode: "css", ext: ["scss"]},
+ {name: "Shell", mime: "text/x-sh", mode: "shell", ext: ["sh", "ksh", "bash"], alias: ["bash", "sh", "zsh"], file: /^PKGBUILD$/},
+ {name: "Sieve", mime: "application/sieve", mode: "sieve", ext: ["siv", "sieve"]},
+ {name: "Slim", mimes: ["text/x-slim", "application/x-slim"], mode: "slim", ext: ["slim"]},
+ {name: "Smalltalk", mime: "text/x-stsrc", mode: "smalltalk", ext: ["st"]},
+ {name: "Smarty", mime: "text/x-smarty", mode: "smarty", ext: ["tpl"]},
+ {name: "Solr", mime: "text/x-solr", mode: "solr"},
+ {name: "Soy", mime: "text/x-soy", mode: "soy", ext: ["soy"], alias: ["closure template"]},
+ {name: "SPARQL", mime: "application/sparql-query", mode: "sparql", ext: ["rq", "sparql"], alias: ["sparul"]},
+ {name: "Spreadsheet", mime: "text/x-spreadsheet", mode: "spreadsheet", alias: ["excel", "formula"]},
+ {name: "SQL", mime: "text/x-sql", mode: "sql", ext: ["sql"]},
+ {name: "Squirrel", mime: "text/x-squirrel", mode: "clike", ext: ["nut"]},
+ {name: "Swift", mime: "text/x-swift", mode: "swift", ext: ["swift"]},
+ {name: "sTeX", mime: "text/x-stex", mode: "stex"},
+ {name: "LaTeX", mime: "text/x-latex", mode: "stex", ext: ["text", "ltx"], alias: ["tex"]},
+ {name: "SystemVerilog", mime: "text/x-systemverilog", mode: "verilog", ext: ["v"]},
+ {name: "Tcl", mime: "text/x-tcl", mode: "tcl", ext: ["tcl"]},
+ {name: "Textile", mime: "text/x-textile", mode: "textile", ext: ["textile"]},
+ {name: "TiddlyWiki ", mime: "text/x-tiddlywiki", mode: "tiddlywiki"},
+ {name: "Tiki wiki", mime: "text/tiki", mode: "tiki"},
+ {name: "TOML", mime: "text/x-toml", mode: "toml", ext: ["toml"]},
+ {name: "Tornado", mime: "text/x-tornado", mode: "tornado"},
+ {name: "troff", mime: "text/troff", mode: "troff", ext: ["1", "2", "3", "4", "5", "6", "7", "8", "9"]},
+ {name: "TTCN", mime: "text/x-ttcn", mode: "ttcn", ext: ["ttcn", "ttcn3", "ttcnpp"]},
+ {name: "TTCN_CFG", mime: "text/x-ttcn-cfg", mode: "ttcn-cfg", ext: ["cfg"]},
+ {name: "Turtle", mime: "text/turtle", mode: "turtle", ext: ["ttl"]},
+ {name: "TypeScript", mime: "application/typescript", mode: "javascript", ext: ["ts"], alias: ["ts"]},
+ {name: "Twig", mime: "text/x-twig", mode: "twig"},
+ {name: "Web IDL", mime: "text/x-webidl", mode: "webidl", ext: ["webidl"]},
+ {name: "VB.NET", mime: "text/x-vb", mode: "vb", ext: ["vb"]},
+ {name: "VBScript", mime: "text/vbscript", mode: "vbscript", ext: ["vbs"]},
+ {name: "Velocity", mime: "text/velocity", mode: "velocity", ext: ["vtl"]},
+ {name: "Verilog", mime: "text/x-verilog", mode: "verilog", ext: ["v"]},
+ {name: "VHDL", mime: "text/x-vhdl", mode: "vhdl", ext: ["vhd", "vhdl"]},
+ {name: "XML", mimes: ["application/xml", "text/xml"], mode: "xml", ext: ["xml", "xsl", "xsd"], alias: ["rss", "wsdl", "xsd"]},
+ {name: "XQuery", mime: "application/xquery", mode: "xquery", ext: ["xy", "xquery"]},
+ {name: "Yacas", mime: "text/x-yacas", mode: "yacas", ext: ["ys"]},
+ {name: "YAML", mime: "text/x-yaml", mode: "yaml", ext: ["yaml", "yml"], alias: ["yml"]},
+ {name: "Z80", mime: "text/x-z80", mode: "z80", ext: ["z80"]},
+ {name: "mscgen", mime: "text/x-mscgen", mode: "mscgen", ext: ["mscgen", "mscin", "msc"]},
+ {name: "xu", mime: "text/x-xu", mode: "mscgen", ext: ["xu"]},
+ {name: "msgenny", mime: "text/x-msgenny", mode: "mscgen", ext: ["msgenny"]}
+ ];
+ // Ensure all modes have a mime property for backwards compatibility
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.mimes) info.mime = info.mimes[0];
+ }
+
+ CodeMirror.findModeByMIME = function(mime) {
+ mime = mime.toLowerCase();
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.mime == mime) return info;
+ if (info.mimes) for (var j = 0; j < info.mimes.length; j++)
+ if (info.mimes[j] == mime) return info;
+ }
+ };
+
+ CodeMirror.findModeByExtension = function(ext) {
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.ext) for (var j = 0; j < info.ext.length; j++)
+ if (info.ext[j] == ext) return info;
+ }
+ };
+
+ CodeMirror.findModeByFileName = function(filename) {
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.file && info.file.test(filename)) return info;
+ }
+ var dot = filename.lastIndexOf(".");
+ var ext = dot > -1 && filename.substring(dot + 1, filename.length);
+ if (ext) return CodeMirror.findModeByExtension(ext);
+ };
+
+ CodeMirror.findModeByName = function(name) {
+ name = name.toLowerCase();
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.name.toLowerCase() == name) return info;
+ if (info.alias) for (var j = 0; j < info.alias.length; j++)
+ if (info.alias[j].toLowerCase() == name) return info;
+ }
+ };
+});
+
+},{"../lib/codemirror":10}],14:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+var htmlConfig = {
+ autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,
+ 'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,
+ 'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,
+ 'track': true, 'wbr': true, 'menuitem': true},
+ implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,
+ 'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,
+ 'th': true, 'tr': true},
+ contextGrabbers: {
+ 'dd': {'dd': true, 'dt': true},
+ 'dt': {'dd': true, 'dt': true},
+ 'li': {'li': true},
+ 'option': {'option': true, 'optgroup': true},
+ 'optgroup': {'optgroup': true},
+ 'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,
+ 'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,
+ 'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,
+ 'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,
+ 'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},
+ 'rp': {'rp': true, 'rt': true},
+ 'rt': {'rp': true, 'rt': true},
+ 'tbody': {'tbody': true, 'tfoot': true},
+ 'td': {'td': true, 'th': true},
+ 'tfoot': {'tbody': true},
+ 'th': {'td': true, 'th': true},
+ 'thead': {'tbody': true, 'tfoot': true},
+ 'tr': {'tr': true}
+ },
+ doNotIndent: {"pre": true},
+ allowUnquoted: true,
+ allowMissing: true,
+ caseFold: true
+}
+
+var xmlConfig = {
+ autoSelfClosers: {},
+ implicitlyClosed: {},
+ contextGrabbers: {},
+ doNotIndent: {},
+ allowUnquoted: false,
+ allowMissing: false,
+ caseFold: false
+}
+
+CodeMirror.defineMode("xml", function(editorConf, config_) {
+ var indentUnit = editorConf.indentUnit
+ var config = {}
+ var defaults = config_.htmlMode ? htmlConfig : xmlConfig
+ for (var prop in defaults) config[prop] = defaults[prop]
+ for (var prop in config_) config[prop] = config_[prop]
+
+ // Return variables for tokenizers
+ var type, setStyle;
+
+ function inText(stream, state) {
+ function chain(parser) {
+ state.tokenize = parser;
+ return parser(stream, state);
+ }
+
+ var ch = stream.next();
+ if (ch == "<") {
+ if (stream.eat("!")) {
+ if (stream.eat("[")) {
+ if (stream.match("CDATA[")) return chain(inBlock("atom", "]]>"));
+ else return null;
+ } else if (stream.match("--")) {
+ return chain(inBlock("comment", "-->"));
+ } else if (stream.match("DOCTYPE", true, true)) {
+ stream.eatWhile(/[\w\._\-]/);
+ return chain(doctype(1));
+ } else {
+ return null;
+ }
+ } else if (stream.eat("?")) {
+ stream.eatWhile(/[\w\._\-]/);
+ state.tokenize = inBlock("meta", "?>");
+ return "meta";
+ } else {
+ type = stream.eat("/") ? "closeTag" : "openTag";
+ state.tokenize = inTag;
+ return "tag bracket";
+ }
+ } else if (ch == "&") {
+ var ok;
+ if (stream.eat("#")) {
+ if (stream.eat("x")) {
+ ok = stream.eatWhile(/[a-fA-F\d]/) && stream.eat(";");
+ } else {
+ ok = stream.eatWhile(/[\d]/) && stream.eat(";");
+ }
+ } else {
+ ok = stream.eatWhile(/[\w\.\-:]/) && stream.eat(";");
+ }
+ return ok ? "atom" : "error";
+ } else {
+ stream.eatWhile(/[^&<]/);
+ return null;
+ }
+ }
+ inText.isInText = true;
+
+ function inTag(stream, state) {
+ var ch = stream.next();
+ if (ch == ">" || (ch == "/" && stream.eat(">"))) {
+ state.tokenize = inText;
+ type = ch == ">" ? "endTag" : "selfcloseTag";
+ return "tag bracket";
+ } else if (ch == "=") {
+ type = "equals";
+ return null;
+ } else if (ch == "<") {
+ state.tokenize = inText;
+ state.state = baseState;
+ state.tagName = state.tagStart = null;
+ var next = state.tokenize(stream, state);
+ return next ? next + " tag error" : "tag error";
+ } else if (/[\'\"]/.test(ch)) {
+ state.tokenize = inAttribute(ch);
+ state.stringStartCol = stream.column();
+ return state.tokenize(stream, state);
+ } else {
+ stream.match(/^[^\s\u00a0=<>\"\']*[^\s\u00a0=<>\"\'\/]/);
+ return "word";
+ }
+ }
+
+ function inAttribute(quote) {
+ var closure = function(stream, state) {
+ while (!stream.eol()) {
+ if (stream.next() == quote) {
+ state.tokenize = inTag;
+ break;
+ }
+ }
+ return "string";
+ };
+ closure.isInAttribute = true;
+ return closure;
+ }
+
+ function inBlock(style, terminator) {
+ return function(stream, state) {
+ while (!stream.eol()) {
+ if (stream.match(terminator)) {
+ state.tokenize = inText;
+ break;
+ }
+ stream.next();
+ }
+ return style;
+ };
+ }
+ function doctype(depth) {
+ return function(stream, state) {
+ var ch;
+ while ((ch = stream.next()) != null) {
+ if (ch == "<") {
+ state.tokenize = doctype(depth + 1);
+ return state.tokenize(stream, state);
+ } else if (ch == ">") {
+ if (depth == 1) {
+ state.tokenize = inText;
+ break;
+ } else {
+ state.tokenize = doctype(depth - 1);
+ return state.tokenize(stream, state);
+ }
+ }
+ }
+ return "meta";
+ };
+ }
+
+ function Context(state, tagName, startOfLine) {
+ this.prev = state.context;
+ this.tagName = tagName;
+ this.indent = state.indented;
+ this.startOfLine = startOfLine;
+ if (config.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))
+ this.noIndent = true;
+ }
+ function popContext(state) {
+ if (state.context) state.context = state.context.prev;
+ }
+ function maybePopContext(state, nextTagName) {
+ var parentTagName;
+ while (true) {
+ if (!state.context) {
+ return;
+ }
+ parentTagName = state.context.tagName;
+ if (!config.contextGrabbers.hasOwnProperty(parentTagName) ||
+ !config.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {
+ return;
+ }
+ popContext(state);
+ }
+ }
+
+ function baseState(type, stream, state) {
+ if (type == "openTag") {
+ state.tagStart = stream.column();
+ return tagNameState;
+ } else if (type == "closeTag") {
+ return closeTagNameState;
+ } else {
+ return baseState;
+ }
+ }
+ function tagNameState(type, stream, state) {
+ if (type == "word") {
+ state.tagName = stream.current();
+ setStyle = "tag";
+ return attrState;
+ } else {
+ setStyle = "error";
+ return tagNameState;
+ }
+ }
+ function closeTagNameState(type, stream, state) {
+ if (type == "word") {
+ var tagName = stream.current();
+ if (state.context && state.context.tagName != tagName &&
+ config.implicitlyClosed.hasOwnProperty(state.context.tagName))
+ popContext(state);
+ if ((state.context && state.context.tagName == tagName) || config.matchClosing === false) {
+ setStyle = "tag";
+ return closeState;
+ } else {
+ setStyle = "tag error";
+ return closeStateErr;
+ }
+ } else {
+ setStyle = "error";
+ return closeStateErr;
+ }
+ }
+
+ function closeState(type, _stream, state) {
+ if (type != "endTag") {
+ setStyle = "error";
+ return closeState;
+ }
+ popContext(state);
+ return baseState;
+ }
+ function closeStateErr(type, stream, state) {
+ setStyle = "error";
+ return closeState(type, stream, state);
+ }
+
+ function attrState(type, _stream, state) {
+ if (type == "word") {
+ setStyle = "attribute";
+ return attrEqState;
+ } else if (type == "endTag" || type == "selfcloseTag") {
+ var tagName = state.tagName, tagStart = state.tagStart;
+ state.tagName = state.tagStart = null;
+ if (type == "selfcloseTag" ||
+ config.autoSelfClosers.hasOwnProperty(tagName)) {
+ maybePopContext(state, tagName);
+ } else {
+ maybePopContext(state, tagName);
+ state.context = new Context(state, tagName, tagStart == state.indented);
+ }
+ return baseState;
+ }
+ setStyle = "error";
+ return attrState;
+ }
+ function attrEqState(type, stream, state) {
+ if (type == "equals") return attrValueState;
+ if (!config.allowMissing) setStyle = "error";
+ return attrState(type, stream, state);
+ }
+ function attrValueState(type, stream, state) {
+ if (type == "string") return attrContinuedState;
+ if (type == "word" && config.allowUnquoted) {setStyle = "string"; return attrState;}
+ setStyle = "error";
+ return attrState(type, stream, state);
+ }
+ function attrContinuedState(type, stream, state) {
+ if (type == "string") return attrContinuedState;
+ return attrState(type, stream, state);
+ }
+
+ return {
+ startState: function(baseIndent) {
+ var state = {tokenize: inText,
+ state: baseState,
+ indented: baseIndent || 0,
+ tagName: null, tagStart: null,
+ context: null}
+ if (baseIndent != null) state.baseIndent = baseIndent
+ return state
+ },
+
+ token: function(stream, state) {
+ if (!state.tagName && stream.sol())
+ state.indented = stream.indentation();
+
+ if (stream.eatSpace()) return null;
+ type = null;
+ var style = state.tokenize(stream, state);
+ if ((style || type) && style != "comment") {
+ setStyle = null;
+ state.state = state.state(type || style, stream, state);
+ if (setStyle)
+ style = setStyle == "error" ? style + " error" : setStyle;
+ }
+ return style;
+ },
+
+ indent: function(state, textAfter, fullLine) {
+ var context = state.context;
+ // Indent multi-line strings (e.g. css).
+ if (state.tokenize.isInAttribute) {
+ if (state.tagStart == state.indented)
+ return state.stringStartCol + 1;
+ else
+ return state.indented + indentUnit;
+ }
+ if (context && context.noIndent) return CodeMirror.Pass;
+ if (state.tokenize != inTag && state.tokenize != inText)
+ return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0;
+ // Indent the starts of attribute names.
+ if (state.tagName) {
+ if (config.multilineTagIndentPastTag !== false)
+ return state.tagStart + state.tagName.length + 2;
+ else
+ return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1);
+ }
+ if (config.alignCDATA && /<!\[CDATA\[/.test(textAfter)) return 0;
+ var tagAfter = textAfter && /^<(\/)?([\w_:\.-]*)/.exec(textAfter);
+ if (tagAfter && tagAfter[1]) { // Closing tag spotted
+ while (context) {
+ if (context.tagName == tagAfter[2]) {
+ context = context.prev;
+ break;
+ } else if (config.implicitlyClosed.hasOwnProperty(context.tagName)) {
+ context = context.prev;
+ } else {
+ break;
+ }
+ }
+ } else if (tagAfter) { // Opening tag spotted
+ while (context) {
+ var grabbers = config.contextGrabbers[context.tagName];
+ if (grabbers && grabbers.hasOwnProperty(tagAfter[2]))
+ context = context.prev;
+ else
+ break;
+ }
+ }
+ while (context && context.prev && !context.startOfLine)
+ context = context.prev;
+ if (context) return context.indent + indentUnit;
+ else return state.baseIndent || 0;
+ },
+
+ electricInput: /<\/[\s\w:]+>$/,
+ blockCommentStart: "<!--",
+ blockCommentEnd: "-->",
+
+ configuration: config.htmlMode ? "html" : "xml",
+ helperType: config.htmlMode ? "html" : "xml",
+
+ skipAttribute: function(state) {
+ if (state.state == attrValueState)
+ state.state = attrState
+ }
+ };
+});
+
+CodeMirror.defineMIME("text/xml", "xml");
+CodeMirror.defineMIME("application/xml", "xml");
+if (!CodeMirror.mimeModes.hasOwnProperty("text/html"))
+ CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true});
+
+});
+
+},{"../../lib/codemirror":10}],15:[function(require,module,exports){
+exports.read = function (buffer, offset, isLE, mLen, nBytes) {
+ var e, m
+ var eLen = nBytes * 8 - mLen - 1
+ var eMax = (1 << eLen) - 1
+ var eBias = eMax >> 1
+ var nBits = -7
+ var i = isLE ? (nBytes - 1) : 0
+ var d = isLE ? -1 : 1
+ var s = buffer[offset + i]
+
+ i += d
+
+ e = s & ((1 << (-nBits)) - 1)
+ s >>= (-nBits)
+ nBits += eLen
+ for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+ m = e & ((1 << (-nBits)) - 1)
+ e >>= (-nBits)
+ nBits += mLen
+ for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+ if (e === 0) {
+ e = 1 - eBias
+ } else if (e === eMax) {
+ return m ? NaN : ((s ? -1 : 1) * Infinity)
+ } else {
+ m = m + Math.pow(2, mLen)
+ e = e - eBias
+ }
+ return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
+}
+
+exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
+ var e, m, c
+ var eLen = nBytes * 8 - mLen - 1
+ var eMax = (1 << eLen) - 1
+ var eBias = eMax >> 1
+ var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
+ var i = isLE ? 0 : (nBytes - 1)
+ var d = isLE ? 1 : -1
+ var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
+
+ value = Math.abs(value)
+
+ if (isNaN(value) || value === Infinity) {
+ m = isNaN(value) ? 1 : 0
+ e = eMax
+ } else {
+ e = Math.floor(Math.log(value) / Math.LN2)
+ if (value * (c = Math.pow(2, -e)) < 1) {
+ e--
+ c *= 2
+ }
+ if (e + eBias >= 1) {
+ value += rt / c
+ } else {
+ value += rt * Math.pow(2, 1 - eBias)
+ }
+ if (value * c >= 2) {
+ e++
+ c /= 2
+ }
+
+ if (e + eBias >= eMax) {
+ m = 0
+ e = eMax
+ } else if (e + eBias >= 1) {
+ m = (value * c - 1) * Math.pow(2, mLen)
+ e = e + eBias
+ } else {
+ m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
+ e = 0
+ }
+ }
+
+ for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
+
+ e = (e << mLen) | m
+ eLen += mLen
+ for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+
+ buffer[offset + i - d] |= s * 128
+}
+
+},{}],16:[function(require,module,exports){
+var toString = {}.toString;
+
+module.exports = Array.isArray || function (arr) {
+ return toString.call(arr) == '[object Array]';
+};
+
+},{}],17:[function(require,module,exports){
+(function (global){
+/**
+ * marked - a markdown parser
+ * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed)
+ * https://github.com/chjj/marked
+ */
+
+;(function() {
+
+/**
+ * Block-Level Grammar
+ */
+
+var block = {
+ newline: /^\n+/,
+ code: /^( {4}[^\n]+\n*)+/,
+ fences: noop,
+ hr: /^( *[-*_]){3,} *(?:\n+|$)/,
+ heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,
+ nptable: noop,
+ lheading: /^([^\n]+)\n *(=|-){2,} *(?:\n+|$)/,
+ blockquote: /^( *>[^\n]+(\n(?!def)[^\n]+)*\n*)+/,
+ list: /^( *)(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
+ html: /^ *(?:comment *(?:\n|\s*$)|closed *(?:\n{2,}|\s*$)|closing *(?:\n{2,}|\s*$))/,
+ def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +["(]([^\n]+)[")])? *(?:\n+|$)/,
+ table: noop,
+ paragraph: /^((?:[^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+)\n*/,
+ text: /^[^\n]+/
+};
+
+block.bullet = /(?:[*+-]|\d+\.)/;
+block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;
+block.item = replace(block.item, 'gm')
+ (/bull/g, block.bullet)
+ ();
+
+block.list = replace(block.list)
+ (/bull/g, block.bullet)
+ ('hr', '\\n+(?=\\1?(?:[-*_] *){3,}(?:\\n+|$))')
+ ('def', '\\n+(?=' + block.def.source + ')')
+ ();
+
+block.blockquote = replace(block.blockquote)
+ ('def', block.def)
+ ();
+
+block._tag = '(?!(?:'
+ + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code'
+ + '|var|samp|kbd|sub|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo'
+ + '|span|br|wbr|ins|del|img)\\b)\\w+(?!:/|[^\\w\\s@]*@)\\b';
+
+block.html = replace(block.html)
+ ('comment', /<!--[\s\S]*?-->/)
+ ('closed', /<(tag)[\s\S]+?<\/\1>/)
+ ('closing', /<tag(?:"[^"]*"|'[^']*'|[^'">])*?>/)
+ (/tag/g, block._tag)
+ ();
+
+block.paragraph = replace(block.paragraph)
+ ('hr', block.hr)
+ ('heading', block.heading)
+ ('lheading', block.lheading)
+ ('blockquote', block.blockquote)
+ ('tag', '<' + block._tag)
+ ('def', block.def)
+ ();
+
+/**
+ * Normal Block Grammar
+ */
+
+block.normal = merge({}, block);
+
+/**
+ * GFM Block Grammar
+ */
+
+block.gfm = merge({}, block.normal, {
+ fences: /^ *(`{3,}|~{3,})[ \.]*(\S+)? *\n([\s\S]*?)\s*\1 *(?:\n+|$)/,
+ paragraph: /^/,
+ heading: /^ *(#{1,6}) +([^\n]+?) *#* *(?:\n+|$)/
+});
+
+block.gfm.paragraph = replace(block.paragraph)
+ ('(?!', '(?!'
+ + block.gfm.fences.source.replace('\\1', '\\2') + '|'
+ + block.list.source.replace('\\1', '\\3') + '|')
+ ();
+
+/**
+ * GFM + Tables Block Grammar
+ */
+
+block.tables = merge({}, block.gfm, {
+ nptable: /^ *(\S.*\|.*)\n *([-:]+ *\|[-| :]*)\n((?:.*\|.*(?:\n|$))*)\n*/,
+ table: /^ *\|(.+)\n *\|( *[-:]+[-| :]*)\n((?: *\|.*(?:\n|$))*)\n*/
+});
+
+/**
+ * Block Lexer
+ */
+
+function Lexer(options) {
+ this.tokens = [];
+ this.tokens.links = {};
+ this.options = options || marked.defaults;
+ this.rules = block.normal;
+
+ if (this.options.gfm) {
+ if (this.options.tables) {
+ this.rules = block.tables;
+ } else {
+ this.rules = block.gfm;
+ }
+ }
+}
+
+/**
+ * Expose Block Rules
+ */
+
+Lexer.rules = block;
+
+/**
+ * Static Lex Method
+ */
+
+Lexer.lex = function(src, options) {
+ var lexer = new Lexer(options);
+ return lexer.lex(src);
+};
+
+/**
+ * Preprocessing
+ */
+
+Lexer.prototype.lex = function(src) {
+ src = src
+ .replace(/\r\n|\r/g, '\n')
+ .replace(/\t/g, ' ')
+ .replace(/\u00a0/g, ' ')
+ .replace(/\u2424/g, '\n');
+
+ return this.token(src, true);
+};
+
+/**
+ * Lexing
+ */
+
+Lexer.prototype.token = function(src, top, bq) {
+ var src = src.replace(/^ +$/gm, '')
+ , next
+ , loose
+ , cap
+ , bull
+ , b
+ , item
+ , space
+ , i
+ , l;
+
+ while (src) {
+ // newline
+ if (cap = this.rules.newline.exec(src)) {
+ src = src.substring(cap[0].length);
+ if (cap[0].length > 1) {
+ this.tokens.push({
+ type: 'space'
+ });
+ }
+ }
+
+ // code
+ if (cap = this.rules.code.exec(src)) {
+ src = src.substring(cap[0].length);
+ cap = cap[0].replace(/^ {4}/gm, '');
+ this.tokens.push({
+ type: 'code',
+ text: !this.options.pedantic
+ ? cap.replace(/\n+$/, '')
+ : cap
+ });
+ continue;
+ }
+
+ // fences (gfm)
+ if (cap = this.rules.fences.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'code',
+ lang: cap[2],
+ text: cap[3] || ''
+ });
+ continue;
+ }
+
+ // heading
+ if (cap = this.rules.heading.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'heading',
+ depth: cap[1].length,
+ text: cap[2]
+ });
+ continue;
+ }
+
+ // table no leading pipe (gfm)
+ if (top && (cap = this.rules.nptable.exec(src))) {
+ src = src.substring(cap[0].length);
+
+ item = {
+ type: 'table',
+ header: cap[1].replace(/^ *| *\| *$/g, '').split(/ *\| */),
+ align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
+ cells: cap[3].replace(/\n$/, '').split('\n')
+ };
+
+ for (i = 0; i < item.align.length; i++) {
+ if (/^ *-+: *$/.test(item.align[i])) {
+ item.align[i] = 'right';
+ } else if (/^ *:-+: *$/.test(item.align[i])) {
+ item.align[i] = 'center';
+ } else if (/^ *:-+ *$/.test(item.align[i])) {
+ item.align[i] = 'left';
+ } else {
+ item.align[i] = null;
+ }
+ }
+
+ for (i = 0; i < item.cells.length; i++) {
+ item.cells[i] = item.cells[i].split(/ *\| */);
+ }
+
+ this.tokens.push(item);
+
+ continue;
+ }
+
+ // lheading
+ if (cap = this.rules.lheading.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'heading',
+ depth: cap[2] === '=' ? 1 : 2,
+ text: cap[1]
+ });
+ continue;
+ }
+
+ // hr
+ if (cap = this.rules.hr.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'hr'
+ });
+ continue;
+ }
+
+ // blockquote
+ if (cap = this.rules.blockquote.exec(src)) {
+ src = src.substring(cap[0].length);
+
+ this.tokens.push({
+ type: 'blockquote_start'
+ });
+
+ cap = cap[0].replace(/^ *> ?/gm, '');
+
+ // Pass `top` to keep the current
+ // "toplevel" state. This is exactly
+ // how markdown.pl works.
+ this.token(cap, top, true);
+
+ this.tokens.push({
+ type: 'blockquote_end'
+ });
+
+ continue;
+ }
+
+ // list
+ if (cap = this.rules.list.exec(src)) {
+ src = src.substring(cap[0].length);
+ bull = cap[2];
+
+ this.tokens.push({
+ type: 'list_start',
+ ordered: bull.length > 1
+ });
+
+ // Get each top-level item.
+ cap = cap[0].match(this.rules.item);
+
+ next = false;
+ l = cap.length;
+ i = 0;
+
+ for (; i < l; i++) {
+ item = cap[i];
+
+ // Remove the list item's bullet
+ // so it is seen as the next token.
+ space = item.length;
+ item = item.replace(/^ *([*+-]|\d+\.) +/, '');
+
+ // Outdent whatever the
+ // list item contains. Hacky.
+ if (~item.indexOf('\n ')) {
+ space -= item.length;
+ item = !this.options.pedantic
+ ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')
+ : item.replace(/^ {1,4}/gm, '');
+ }
+
+ // Determine whether the next list item belongs here.
+ // Backpedal if it does not belong in this list.
+ if (this.options.smartLists && i !== l - 1) {
+ b = block.bullet.exec(cap[i + 1])[0];
+ if (bull !== b && !(bull.length > 1 && b.length > 1)) {
+ src = cap.slice(i + 1).join('\n') + src;
+ i = l - 1;
+ }
+ }
+
+ // Determine whether item is loose or not.
+ // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
+ // for discount behavior.
+ loose = next || /\n\n(?!\s*$)/.test(item);
+ if (i !== l - 1) {
+ next = item.charAt(item.length - 1) === '\n';
+ if (!loose) loose = next;
+ }
+
+ this.tokens.push({
+ type: loose
+ ? 'loose_item_start'
+ : 'list_item_start'
+ });
+
+ // Recurse.
+ this.token(item, false, bq);
+
+ this.tokens.push({
+ type: 'list_item_end'
+ });
+ }
+
+ this.tokens.push({
+ type: 'list_end'
+ });
+
+ continue;
+ }
+
+ // html
+ if (cap = this.rules.html.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: this.options.sanitize
+ ? 'paragraph'
+ : 'html',
+ pre: !this.options.sanitizer
+ && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
+ text: cap[0]
+ });
+ continue;
+ }
+
+ // def
+ if ((!bq && top) && (cap = this.rules.def.exec(src))) {
+ src = src.substring(cap[0].length);
+ this.tokens.links[cap[1].toLowerCase()] = {
+ href: cap[2],
+ title: cap[3]
+ };
+ continue;
+ }
+
+ // table (gfm)
+ if (top && (cap = this.rules.table.exec(src))) {
+ src = src.substring(cap[0].length);
+
+ item = {
+ type: 'table',
+ header: cap[1].replace(/^ *| *\| *$/g, '').split(/ *\| */),
+ align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
+ cells: cap[3].replace(/(?: *\| *)?\n$/, '').split('\n')
+ };
+
+ for (i = 0; i < item.align.length; i++) {
+ if (/^ *-+: *$/.test(item.align[i])) {
+ item.align[i] = 'right';
+ } else if (/^ *:-+: *$/.test(item.align[i])) {
+ item.align[i] = 'center';
+ } else if (/^ *:-+ *$/.test(item.align[i])) {
+ item.align[i] = 'left';
+ } else {
+ item.align[i] = null;
+ }
+ }
+
+ for (i = 0; i < item.cells.length; i++) {
+ item.cells[i] = item.cells[i]
+ .replace(/^ *\| *| *\| *$/g, '')
+ .split(/ *\| */);
+ }
+
+ this.tokens.push(item);
+
+ continue;
+ }
+
+ // top-level paragraph
+ if (top && (cap = this.rules.paragraph.exec(src))) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'paragraph',
+ text: cap[1].charAt(cap[1].length - 1) === '\n'
+ ? cap[1].slice(0, -1)
+ : cap[1]
+ });
+ continue;
+ }
+
+ // text
+ if (cap = this.rules.text.exec(src)) {
+ // Top-level should never reach here.
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'text',
+ text: cap[0]
+ });
+ continue;
+ }
+
+ if (src) {
+ throw new
+ Error('Infinite loop on byte: ' + src.charCodeAt(0));
+ }
+ }
+
+ return this.tokens;
+};
+
+/**
+ * Inline-Level Grammar
+ */
+
+var inline = {
+ escape: /^\\([\\`*{}\[\]()#+\-.!_>])/,
+ autolink: /^<([^ >]+(@|:\/)[^ >]+)>/,
+ url: noop,
+ tag: /^<!--[\s\S]*?-->|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/,
+ link: /^!?\[(inside)\]\(href\)/,
+ reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
+ nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
+ strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/,
+ em: /^\b_((?:[^_]|__)+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/,
+ code: /^(`+)\s*([\s\S]*?[^`])\s*\1(?!`)/,
+ br: /^ {2,}\n(?!\s*$)/,
+ del: noop,
+ text: /^[\s\S]+?(?=[\\<!\[_*`]| {2,}\n|$)/
+};
+
+inline._inside = /(?:\[[^\]]*\]|[^\[\]]|\](?=[^\[]*\]))*/;
+inline._href = /\s*<?([\s\S]*?)>?(?:\s+['"]([\s\S]*?)['"])?\s*/;
+
+inline.link = replace(inline.link)
+ ('inside', inline._inside)
+ ('href', inline._href)
+ ();
+
+inline.reflink = replace(inline.reflink)
+ ('inside', inline._inside)
+ ();
+
+/**
+ * Normal Inline Grammar
+ */
+
+inline.normal = merge({}, inline);
+
+/**
+ * Pedantic Inline Grammar
+ */
+
+inline.pedantic = merge({}, inline.normal, {
+ strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
+ em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/
+});
+
+/**
+ * GFM Inline Grammar
+ */
+
+inline.gfm = merge({}, inline.normal, {
+ escape: replace(inline.escape)('])', '~|])')(),
+ url: /^(https?:\/\/[^\s<]+[^<.,:;"')\]\s])/,
+ del: /^~~(?=\S)([\s\S]*?\S)~~/,
+ text: replace(inline.text)
+ (']|', '~]|')
+ ('|', '|https?://|')
+ ()
+});
+
+/**
+ * GFM + Line Breaks Inline Grammar
+ */
+
+inline.breaks = merge({}, inline.gfm, {
+ br: replace(inline.br)('{2,}', '*')(),
+ text: replace(inline.gfm.text)('{2,}', '*')()
+});
+
+/**
+ * Inline Lexer & Compiler
+ */
+
+function InlineLexer(links, options) {
+ this.options = options || marked.defaults;
+ this.links = links;
+ this.rules = inline.normal;
+ this.renderer = this.options.renderer || new Renderer;
+ this.renderer.options = this.options;
+
+ if (!this.links) {
+ throw new
+ Error('Tokens array requires a `links` property.');
+ }
+
+ if (this.options.gfm) {
+ if (this.options.breaks) {
+ this.rules = inline.breaks;
+ } else {
+ this.rules = inline.gfm;
+ }
+ } else if (this.options.pedantic) {
+ this.rules = inline.pedantic;
+ }
+}
+
+/**
+ * Expose Inline Rules
+ */
+
+InlineLexer.rules = inline;
+
+/**
+ * Static Lexing/Compiling Method
+ */
+
+InlineLexer.output = function(src, links, options) {
+ var inline = new InlineLexer(links, options);
+ return inline.output(src);
+};
+
+/**
+ * Lexing/Compiling
+ */
+
+InlineLexer.prototype.output = function(src) {
+ var out = ''
+ , link
+ , text
+ , href
+ , cap;
+
+ while (src) {
+ // escape
+ if (cap = this.rules.escape.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += cap[1];
+ continue;
+ }
+
+ // autolink
+ if (cap = this.rules.autolink.exec(src)) {
+ src = src.substring(cap[0].length);
+ if (cap[2] === '@') {
+ text = cap[1].charAt(6) === ':'
+ ? this.mangle(cap[1].substring(7))
+ : this.mangle(cap[1]);
+ href = this.mangle('mailto:') + text;
+ } else {
+ text = escape(cap[1]);
+ href = text;
+ }
+ out += this.renderer.link(href, null, text);
+ continue;
+ }
+
+ // url (gfm)
+ if (!this.inLink && (cap = this.rules.url.exec(src))) {
+ src = src.substring(cap[0].length);
+ text = escape(cap[1]);
+ href = text;
+ out += this.renderer.link(href, null, text);
+ continue;
+ }
+
+ // tag
+ if (cap = this.rules.tag.exec(src)) {
+ if (!this.inLink && /^<a /i.test(cap[0])) {
+ this.inLink = true;
+ } else if (this.inLink && /^<\/a>/i.test(cap[0])) {
+ this.inLink = false;
+ }
+ src = src.substring(cap[0].length);
+ out += this.options.sanitize
+ ? this.options.sanitizer
+ ? this.options.sanitizer(cap[0])
+ : escape(cap[0])
+ : cap[0]
+ continue;
+ }
+
+ // link
+ if (cap = this.rules.link.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.inLink = true;
+ out += this.outputLink(cap, {
+ href: cap[2],
+ title: cap[3]
+ });
+ this.inLink = false;
+ continue;
+ }
+
+ // reflink, nolink
+ if ((cap = this.rules.reflink.exec(src))
+ || (cap = this.rules.nolink.exec(src))) {
+ src = src.substring(cap[0].length);
+ link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
+ link = this.links[link.toLowerCase()];
+ if (!link || !link.href) {
+ out += cap[0].charAt(0);
+ src = cap[0].substring(1) + src;
+ continue;
+ }
+ this.inLink = true;
+ out += this.outputLink(cap, link);
+ this.inLink = false;
+ continue;
+ }
+
+ // strong
+ if (cap = this.rules.strong.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.strong(this.output(cap[2] || cap[1]));
+ continue;
+ }
+
+ // em
+ if (cap = this.rules.em.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.em(this.output(cap[2] || cap[1]));
+ continue;
+ }
+
+ // code
+ if (cap = this.rules.code.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.codespan(escape(cap[2], true));
+ continue;
+ }
+
+ // br
+ if (cap = this.rules.br.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.br();
+ continue;
+ }
+
+ // del (gfm)
+ if (cap = this.rules.del.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.del(this.output(cap[1]));
+ continue;
+ }
+
+ // text
+ if (cap = this.rules.text.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.text(escape(this.smartypants(cap[0])));
+ continue;
+ }
+
+ if (src) {
+ throw new
+ Error('Infinite loop on byte: ' + src.charCodeAt(0));
+ }
+ }
+
+ return out;
+};
+
+/**
+ * Compile Link
+ */
+
+InlineLexer.prototype.outputLink = function(cap, link) {
+ var href = escape(link.href)
+ , title = link.title ? escape(link.title) : null;
+
+ return cap[0].charAt(0) !== '!'
+ ? this.renderer.link(href, title, this.output(cap[1]))
+ : this.renderer.image(href, title, escape(cap[1]));
+};
+
+/**
+ * Smartypants Transformations
+ */
+
+InlineLexer.prototype.smartypants = function(text) {
+ if (!this.options.smartypants) return text;
+ return text
+ // em-dashes
+ .replace(/---/g, '\u2014')
+ // en-dashes
+ .replace(/--/g, '\u2013')
+ // opening singles
+ .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018')
+ // closing singles & apostrophes
+ .replace(/'/g, '\u2019')
+ // opening doubles
+ .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c')
+ // closing doubles
+ .replace(/"/g, '\u201d')
+ // ellipses
+ .replace(/\.{3}/g, '\u2026');
+};
+
+/**
+ * Mangle Links
+ */
+
+InlineLexer.prototype.mangle = function(text) {
+ if (!this.options.mangle) return text;
+ var out = ''
+ , l = text.length
+ , i = 0
+ , ch;
+
+ for (; i < l; i++) {
+ ch = text.charCodeAt(i);
+ if (Math.random() > 0.5) {
+ ch = 'x' + ch.toString(16);
+ }
+ out += '&#' + ch + ';';
+ }
+
+ return out;
+};
+
+/**
+ * Renderer
+ */
+
+function Renderer(options) {
+ this.options = options || {};
+}
+
+Renderer.prototype.code = function(code, lang, escaped) {
+ if (this.options.highlight) {
+ var out = this.options.highlight(code, lang);
+ if (out != null && out !== code) {
+ escaped = true;
+ code = out;
+ }
+ }
+
+ if (!lang) {
+ return '<pre><code>'
+ + (escaped ? code : escape(code, true))
+ + '\n</code></pre>';
+ }
+
+ return '<pre><code class="'
+ + this.options.langPrefix
+ + escape(lang, true)
+ + '">'
+ + (escaped ? code : escape(code, true))
+ + '\n</code></pre>\n';
+};
+
+Renderer.prototype.blockquote = function(quote) {
+ return '<blockquote>\n' + quote + '</blockquote>\n';
+};
+
+Renderer.prototype.html = function(html) {
+ return html;
+};
+
+Renderer.prototype.heading = function(text, level, raw) {
+ return '<h'
+ + level
+ + ' id="'
+ + this.options.headerPrefix
+ + raw.toLowerCase().replace(/[^\w]+/g, '-')
+ + '">'
+ + text
+ + '</h'
+ + level
+ + '>\n';
+};
+
+Renderer.prototype.hr = function() {
+ return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
+};
+
+Renderer.prototype.list = function(body, ordered) {
+ var type = ordered ? 'ol' : 'ul';
+ return '<' + type + '>\n' + body + '</' + type + '>\n';
+};
+
+Renderer.prototype.listitem = function(text) {
+ return '<li>' + text + '</li>\n';
+};
+
+Renderer.prototype.paragraph = function(text) {
+ return '<p>' + text + '</p>\n';
+};
+
+Renderer.prototype.table = function(header, body) {
+ return '<table>\n'
+ + '<thead>\n'
+ + header
+ + '</thead>\n'
+ + '<tbody>\n'
+ + body
+ + '</tbody>\n'
+ + '</table>\n';
+};
+
+Renderer.prototype.tablerow = function(content) {
+ return '<tr>\n' + content + '</tr>\n';
+};
+
+Renderer.prototype.tablecell = function(content, flags) {
+ var type = flags.header ? 'th' : 'td';
+ var tag = flags.align
+ ? '<' + type + ' style="text-align:' + flags.align + '">'
+ : '<' + type + '>';
+ return tag + content + '</' + type + '>\n';
+};
+
+// span level renderer
+Renderer.prototype.strong = function(text) {
+ return '<strong>' + text + '</strong>';
+};
+
+Renderer.prototype.em = function(text) {
+ return '<em>' + text + '</em>';
+};
+
+Renderer.prototype.codespan = function(text) {
+ return '<code>' + text + '</code>';
+};
+
+Renderer.prototype.br = function() {
+ return this.options.xhtml ? '<br/>' : '<br>';
+};
+
+Renderer.prototype.del = function(text) {
+ return '<del>' + text + '</del>';
+};
+
+Renderer.prototype.link = function(href, title, text) {
+ if (this.options.sanitize) {
+ try {
+ var prot = decodeURIComponent(unescape(href))
+ .replace(/[^\w:]/g, '')
+ .toLowerCase();
+ } catch (e) {
+ return '';
+ }
+ if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0) {
+ return '';
+ }
+ }
+ var out = '<a href="' + href + '"';
+ if (title) {
+ out += ' title="' + title + '"';
+ }
+ out += '>' + text + '</a>';
+ return out;
+};
+
+Renderer.prototype.image = function(href, title, text) {
+ var out = '<img src="' + href + '" alt="' + text + '"';
+ if (title) {
+ out += ' title="' + title + '"';
+ }
+ out += this.options.xhtml ? '/>' : '>';
+ return out;
+};
+
+Renderer.prototype.text = function(text) {
+ return text;
+};
+
+/**
+ * Parsing & Compiling
+ */
+
+function Parser(options) {
+ this.tokens = [];
+ this.token = null;
+ this.options = options || marked.defaults;
+ this.options.renderer = this.options.renderer || new Renderer;
+ this.renderer = this.options.renderer;
+ this.renderer.options = this.options;
+}
+
+/**
+ * Static Parse Method
+ */
+
+Parser.parse = function(src, options, renderer) {
+ var parser = new Parser(options, renderer);
+ return parser.parse(src);
+};
+
+/**
+ * Parse Loop
+ */
+
+Parser.prototype.parse = function(src) {
+ this.inline = new InlineLexer(src.links, this.options, this.renderer);
+ this.tokens = src.reverse();
+
+ var out = '';
+ while (this.next()) {
+ out += this.tok();
+ }
+
+ return out;
+};
+
+/**
+ * Next Token
+ */
+
+Parser.prototype.next = function() {
+ return this.token = this.tokens.pop();
+};
+
+/**
+ * Preview Next Token
+ */
+
+Parser.prototype.peek = function() {
+ return this.tokens[this.tokens.length - 1] || 0;
+};
+
+/**
+ * Parse Text Tokens
+ */
+
+Parser.prototype.parseText = function() {
+ var body = this.token.text;
+
+ while (this.peek().type === 'text') {
+ body += '\n' + this.next().text;
+ }
+
+ return this.inline.output(body);
+};
+
+/**
+ * Parse Current Token
+ */
+
+Parser.prototype.tok = function() {
+ switch (this.token.type) {
+ case 'space': {
+ return '';
+ }
+ case 'hr': {
+ return this.renderer.hr();
+ }
+ case 'heading': {
+ return this.renderer.heading(
+ this.inline.output(this.token.text),
+ this.token.depth,
+ this.token.text);
+ }
+ case 'code': {
+ return this.renderer.code(this.token.text,
+ this.token.lang,
+ this.token.escaped);
+ }
+ case 'table': {
+ var header = ''
+ , body = ''
+ , i
+ , row
+ , cell
+ , flags
+ , j;
+
+ // header
+ cell = '';
+ for (i = 0; i < this.token.header.length; i++) {
+ flags = { header: true, align: this.token.align[i] };
+ cell += this.renderer.tablecell(
+ this.inline.output(this.token.header[i]),
+ { header: true, align: this.token.align[i] }
+ );
+ }
+ header += this.renderer.tablerow(cell);
+
+ for (i = 0; i < this.token.cells.length; i++) {
+ row = this.token.cells[i];
+
+ cell = '';
+ for (j = 0; j < row.length; j++) {
+ cell += this.renderer.tablecell(
+ this.inline.output(row[j]),
+ { header: false, align: this.token.align[j] }
+ );
+ }
+
+ body += this.renderer.tablerow(cell);
+ }
+ return this.renderer.table(header, body);
+ }
+ case 'blockquote_start': {
+ var body = '';
+
+ while (this.next().type !== 'blockquote_end') {
+ body += this.tok();
+ }
+
+ return this.renderer.blockquote(body);
+ }
+ case 'list_start': {
+ var body = ''
+ , ordered = this.token.ordered;
+
+ while (this.next().type !== 'list_end') {
+ body += this.tok();
+ }
+
+ return this.renderer.list(body, ordered);
+ }
+ case 'list_item_start': {
+ var body = '';
+
+ while (this.next().type !== 'list_item_end') {
+ body += this.token.type === 'text'
+ ? this.parseText()
+ : this.tok();
+ }
+
+ return this.renderer.listitem(body);
+ }
+ case 'loose_item_start': {
+ var body = '';
+
+ while (this.next().type !== 'list_item_end') {
+ body += this.tok();
+ }
+
+ return this.renderer.listitem(body);
+ }
+ case 'html': {
+ var html = !this.token.pre && !this.options.pedantic
+ ? this.inline.output(this.token.text)
+ : this.token.text;
+ return this.renderer.html(html);
+ }
+ case 'paragraph': {
+ return this.renderer.paragraph(this.inline.output(this.token.text));
+ }
+ case 'text': {
+ return this.renderer.paragraph(this.parseText());
+ }
+ }
+};
+
+/**
+ * Helpers
+ */
+
+function escape(html, encode) {
+ return html
+ .replace(!encode ? /&(?!#?\w+;)/g : /&/g, '&')
+ .replace(/</g, '<')
+ .replace(/>/g, '>')
+ .replace(/"/g, '"')
+ .replace(/'/g, ''');
+}
+
+function unescape(html) {
+ return html.replace(/&([#\w]+);/g, function(_, n) {
+ n = n.toLowerCase();
+ if (n === 'colon') return ':';
+ if (n.charAt(0) === '#') {
+ return n.charAt(1) === 'x'
+ ? String.fromCharCode(parseInt(n.substring(2), 16))
+ : String.fromCharCode(+n.substring(1));
+ }
+ return '';
+ });
+}
+
+function replace(regex, opt) {
+ regex = regex.source;
+ opt = opt || '';
+ return function self(name, val) {
+ if (!name) return new RegExp(regex, opt);
+ val = val.source || val;
+ val = val.replace(/(^|[^\[])\^/g, '$1');
+ regex = regex.replace(name, val);
+ return self;
+ };
+}
+
+function noop() {}
+noop.exec = noop;
+
+function merge(obj) {
+ var i = 1
+ , target
+ , key;
+
+ for (; i < arguments.length; i++) {
+ target = arguments[i];
+ for (key in target) {
+ if (Object.prototype.hasOwnProperty.call(target, key)) {
+ obj[key] = target[key];
+ }
+ }
+ }
+
+ return obj;
+}
+
+
+/**
+ * Marked
+ */
+
+function marked(src, opt, callback) {
+ if (callback || typeof opt === 'function') {
+ if (!callback) {
+ callback = opt;
+ opt = null;
+ }
+
+ opt = merge({}, marked.defaults, opt || {});
+
+ var highlight = opt.highlight
+ , tokens
+ , pending
+ , i = 0;
+
+ try {
+ tokens = Lexer.lex(src, opt)
+ } catch (e) {
+ return callback(e);
+ }
+
+ pending = tokens.length;
+
+ var done = function(err) {
+ if (err) {
+ opt.highlight = highlight;
+ return callback(err);
+ }
+
+ var out;
+
+ try {
+ out = Parser.parse(tokens, opt);
+ } catch (e) {
+ err = e;
+ }
+
+ opt.highlight = highlight;
+
+ return err
+ ? callback(err)
+ : callback(null, out);
+ };
+
+ if (!highlight || highlight.length < 3) {
+ return done();
+ }
+
+ delete opt.highlight;
+
+ if (!pending) return done();
+
+ for (; i < tokens.length; i++) {
+ (function(token) {
+ if (token.type !== 'code') {
+ return --pending || done();
+ }
+ return highlight(token.text, token.lang, function(err, code) {
+ if (err) return done(err);
+ if (code == null || code === token.text) {
+ return --pending || done();
+ }
+ token.text = code;
+ token.escaped = true;
+ --pending || done();
+ });
+ })(tokens[i]);
+ }
+
+ return;
+ }
+ try {
+ if (opt) opt = merge({}, marked.defaults, opt);
+ return Parser.parse(Lexer.lex(src, opt), opt);
+ } catch (e) {
+ e.message += '\nPlease report this to https://github.com/chjj/marked.';
+ if ((opt || marked.defaults).silent) {
+ return '<p>An error occured:</p><pre>'
+ + escape(e.message + '', true)
+ + '</pre>';
+ }
+ throw e;
+ }
+}
+
+/**
+ * Options
+ */
+
+marked.options =
+marked.setOptions = function(opt) {
+ merge(marked.defaults, opt);
+ return marked;
+};
+
+marked.defaults = {
+ gfm: true,
+ tables: true,
+ breaks: false,
+ pedantic: false,
+ sanitize: false,
+ sanitizer: null,
+ mangle: true,
+ smartLists: false,
+ silent: false,
+ highlight: null,
+ langPrefix: 'lang-',
+ smartypants: false,
+ headerPrefix: '',
+ renderer: new Renderer,
+ xhtml: false
+};
+
+/**
+ * Expose
+ */
+
+marked.Parser = Parser;
+marked.parser = Parser.parse;
+
+marked.Renderer = Renderer;
+
+marked.Lexer = Lexer;
+marked.lexer = Lexer.lex;
+
+marked.InlineLexer = InlineLexer;
+marked.inlineLexer = InlineLexer.output;
+
+marked.parse = marked;
+
+if (typeof module !== 'undefined' && typeof exports === 'object') {
+ module.exports = marked;
+} else if (typeof define === 'function' && define.amd) {
+ define(function() { return marked; });
+} else {
+ this.marked = marked;
+}
+
+}).call(function() {
+ return this || (typeof window !== 'undefined' ? window : global);
+}());
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],18:[function(require,module,exports){
+(function (Buffer,__dirname){
+'use strict';
+
+/**
+ * Typo is a JavaScript implementation of a spellchecker using hunspell-style
+ * dictionaries.
+ */
+
+/**
+ * Typo constructor.
+ *
+ * @param {String} [dictionary] The locale code of the dictionary being used. e.g.,
+ * "en_US". This is only used to auto-load dictionaries.
+ * @param {String} [affData] The data from the dictionary's .aff file. If omitted
+ * and Typo.js is being used in a Chrome extension, the .aff
+ * file will be loaded automatically from
+ * lib/typo/dictionaries/[dictionary]/[dictionary].aff
+ * In other environments, it will be loaded from
+ * [settings.dictionaryPath]/dictionaries/[dictionary]/[dictionary].aff
+ * @param {String} [wordsData] The data from the dictionary's .dic file. If omitted
+ * and Typo.js is being used in a Chrome extension, the .dic
+ * file will be loaded automatically from
+ * lib/typo/dictionaries/[dictionary]/[dictionary].dic
+ * In other environments, it will be loaded from
+ * [settings.dictionaryPath]/dictionaries/[dictionary]/[dictionary].dic
+ * @param {Object} [settings] Constructor settings. Available properties are:
+ * {String} [dictionaryPath]: path to load dictionary from in non-chrome
+ * environment.
+ * {Object} [flags]: flag information.
+ *
+ *
+ * @returns {Typo} A Typo object.
+ */
+
+var Typo = function (dictionary, affData, wordsData, settings) {
+ settings = settings || {};
+
+ this.dictionary = null;
+
+ this.rules = {};
+ this.dictionaryTable = {};
+
+ this.compoundRules = [];
+ this.compoundRuleCodes = {};
+
+ this.replacementTable = [];
+
+ this.flags = settings.flags || {};
+
+ if (dictionary) {
+ this.dictionary = dictionary;
+
+ if (typeof window !== 'undefined' && 'chrome' in window && 'extension' in window.chrome && 'getURL' in window.chrome.extension) {
+ if (!affData) affData = this._readFile(chrome.extension.getURL("lib/typo/dictionaries/" + dictionary + "/" + dictionary + ".aff"));
+ if (!wordsData) wordsData = this._readFile(chrome.extension.getURL("lib/typo/dictionaries/" + dictionary + "/" + dictionary + ".dic"));
+ } else {
+ if (settings.dictionaryPath) {
+ var path = settings.dictionaryPath;
+ }
+ else if (typeof __dirname !== 'undefined') {
+ var path = __dirname + '/dictionaries';
+ }
+ else {
+ var path = './dictionaries';
+ }
+
+ if (!affData) affData = this._readFile(path + "/" + dictionary + "/" + dictionary + ".aff");
+ if (!wordsData) wordsData = this._readFile(path + "/" + dictionary + "/" + dictionary + ".dic");
+ }
+
+ this.rules = this._parseAFF(affData);
+
+ // Save the rule codes that are used in compound rules.
+ this.compoundRuleCodes = {};
+
+ for (var i = 0, _len = this.compoundRules.length; i < _len; i++) {
+ var rule = this.compoundRules[i];
+
+ for (var j = 0, _jlen = rule.length; j < _jlen; j++) {
+ this.compoundRuleCodes[rule[j]] = [];
+ }
+ }
+
+ // If we add this ONLYINCOMPOUND flag to this.compoundRuleCodes, then _parseDIC
+ // will do the work of saving the list of words that are compound-only.
+ if ("ONLYINCOMPOUND" in this.flags) {
+ this.compoundRuleCodes[this.flags.ONLYINCOMPOUND] = [];
+ }
+
+ this.dictionaryTable = this._parseDIC(wordsData);
+
+ // Get rid of any codes from the compound rule codes that are never used
+ // (or that were special regex characters). Not especially necessary...
+ for (var i in this.compoundRuleCodes) {
+ if (this.compoundRuleCodes[i].length == 0) {
+ delete this.compoundRuleCodes[i];
+ }
+ }
+
+ // Build the full regular expressions for each compound rule.
+ // I have a feeling (but no confirmation yet) that this method of
+ // testing for compound words is probably slow.
+ for (var i = 0, _len = this.compoundRules.length; i < _len; i++) {
+ var ruleText = this.compoundRules[i];
+
+ var expressionText = "";
+
+ for (var j = 0, _jlen = ruleText.length; j < _jlen; j++) {
+ var character = ruleText[j];
+
+ if (character in this.compoundRuleCodes) {
+ expressionText += "(" + this.compoundRuleCodes[character].join("|") + ")";
+ }
+ else {
+ expressionText += character;
+ }
+ }
+
+ this.compoundRules[i] = new RegExp(expressionText, "i");
+ }
+ }
+
+ return this;
+};
+
+Typo.prototype = {
+ /**
+ * Loads a Typo instance from a hash of all of the Typo properties.
+ *
+ * @param object obj A hash of Typo properties, probably gotten from a JSON.parse(JSON.stringify(typo_instance)).
+ */
+
+ load : function (obj) {
+ for (var i in obj) {
+ this[i] = obj[i];
+ }
+
+ return this;
+ },
+
+ /**
+ * Read the contents of a file.
+ *
+ * @param {String} path The path (relative) to the file.
+ * @param {String} [charset="ISO8859-1"] The expected charset of the file
+ * @returns string The file data.
+ */
+
+ _readFile : function (path, charset) {
+ if (!charset) charset = "utf8";
+
+ if (typeof XMLHttpRequest !== 'undefined') {
+ var req = new XMLHttpRequest();
+ req.open("GET", path, false);
+
+ if (req.overrideMimeType)
+ req.overrideMimeType("text/plain; charset=" + charset);
+
+ req.send(null);
+
+ return req.responseText;
+ }
+ else if (typeof require !== 'undefined') {
+ // Node.js
+ var fs = require("fs");
+
+ try {
+ if (fs.existsSync(path)) {
+ var stats = fs.statSync(path);
+
+ var fileDescriptor = fs.openSync(path, 'r');
+
+ var buffer = new Buffer(stats.size);
+
+ fs.readSync(fileDescriptor, buffer, 0, buffer.length, null);
+
+ return buffer.toString(charset, 0, buffer.length);
+ }
+ else {
+ console.log("Path " + path + " does not exist.");
+ }
+ } catch (e) {
+ console.log(e);
+ return '';
+ }
+ }
+ },
+
+ /**
+ * Parse the rules out from a .aff file.
+ *
+ * @param {String} data The contents of the affix file.
+ * @returns object The rules from the file.
+ */
+
+ _parseAFF : function (data) {
+ var rules = {};
+
+ // Remove comment lines
+ data = this._removeAffixComments(data);
+
+ var lines = data.split("\n");
+
+ for (var i = 0, _len = lines.length; i < _len; i++) {
+ var line = lines[i];
+
+ var definitionParts = line.split(/\s+/);
+
+ var ruleType = definitionParts[0];
+
+ if (ruleType == "PFX" || ruleType == "SFX") {
+ var ruleCode = definitionParts[1];
+ var combineable = definitionParts[2];
+ var numEntries = parseInt(definitionParts[3], 10);
+
+ var entries = [];
+
+ for (var j = i + 1, _jlen = i + 1 + numEntries; j < _jlen; j++) {
+ var line = lines[j];
+
+ var lineParts = line.split(/\s+/);
+ var charactersToRemove = lineParts[2];
+
+ var additionParts = lineParts[3].split("/");
+
+ var charactersToAdd = additionParts[0];
+ if (charactersToAdd === "0") charactersToAdd = "";
+
+ var continuationClasses = this.parseRuleCodes(additionParts[1]);
+
+ var regexToMatch = lineParts[4];
+
+ var entry = {};
+ entry.add = charactersToAdd;
+
+ if (continuationClasses.length > 0) entry.continuationClasses = continuationClasses;
+
+ if (regexToMatch !== ".") {
+ if (ruleType === "SFX") {
+ entry.match = new RegExp(regexToMatch + "$");
+ }
+ else {
+ entry.match = new RegExp("^" + regexToMatch);
+ }
+ }
+
+ if (charactersToRemove != "0") {
+ if (ruleType === "SFX") {
+ entry.remove = new RegExp(charactersToRemove + "$");
+ }
+ else {
+ entry.remove = charactersToRemove;
+ }
+ }
+
+ entries.push(entry);
+ }
+
+ rules[ruleCode] = { "type" : ruleType, "combineable" : (combineable == "Y"), "entries" : entries };
+
+ i += numEntries;
+ }
+ else if (ruleType === "COMPOUNDRULE") {
+ var numEntries = parseInt(definitionParts[1], 10);
+
+ for (var j = i + 1, _jlen = i + 1 + numEntries; j < _jlen; j++) {
+ var line = lines[j];
+
+ var lineParts = line.split(/\s+/);
+ this.compoundRules.push(lineParts[1]);
+ }
+
+ i += numEntries;
+ }
+ else if (ruleType === "REP") {
+ var lineParts = line.split(/\s+/);
+
+ if (lineParts.length === 3) {
+ this.replacementTable.push([ lineParts[1], lineParts[2] ]);
+ }
+ }
+ else {
+ // ONLYINCOMPOUND
+ // COMPOUNDMIN
+ // FLAG
+ // KEEPCASE
+ // NEEDAFFIX
+
+ this.flags[ruleType] = definitionParts[1];
+ }
+ }
+
+ return rules;
+ },
+
+ /**
+ * Removes comment lines and then cleans up blank lines and trailing whitespace.
+ *
+ * @param {String} data The data from an affix file.
+ * @return {String} The cleaned-up data.
+ */
+
+ _removeAffixComments : function (data) {
+ // Remove comments
+ data = data.replace(/#.*$/mg, "");
+
+ // Trim each line
+ data = data.replace(/^\s\s*/m, '').replace(/\s\s*$/m, '');
+
+ // Remove blank lines.
+ data = data.replace(/\n{2,}/g, "\n");
+
+ // Trim the entire string
+ data = data.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
+
+ return data;
+ },
+
+ /**
+ * Parses the words out from the .dic file.
+ *
+ * @param {String} data The data from the dictionary file.
+ * @returns object The lookup table containing all of the words and
+ * word forms from the dictionary.
+ */
+
+ _parseDIC : function (data) {
+ data = this._removeDicComments(data);
+
+ var lines = data.split("\n");
+ var dictionaryTable = {};
+
+ function addWord(word, rules) {
+ // Some dictionaries will list the same word multiple times with different rule sets.
+ if (!(word in dictionaryTable) || typeof dictionaryTable[word] != 'object') {
+ dictionaryTable[word] = [];
+ }
+
+ dictionaryTable[word].push(rules);
+ }
+
+ // The first line is the number of words in the dictionary.
+ for (var i = 1, _len = lines.length; i < _len; i++) {
+ var line = lines[i];
+
+ var parts = line.split("/", 2);
+
+ var word = parts[0];
+
+ // Now for each affix rule, generate that form of the word.
+ if (parts.length > 1) {
+ var ruleCodesArray = this.parseRuleCodes(parts[1]);
+
+ // Save the ruleCodes for compound word situations.
+ if (!("NEEDAFFIX" in this.flags) || ruleCodesArray.indexOf(this.flags.NEEDAFFIX) == -1) {
+ addWord(word, ruleCodesArray);
+ }
+
+ for (var j = 0, _jlen = ruleCodesArray.length; j < _jlen; j++) {
+ var code = ruleCodesArray[j];
+
+ var rule = this.rules[code];
+
+ if (rule) {
+ var newWords = this._applyRule(word, rule);
+
+ for (var ii = 0, _iilen = newWords.length; ii < _iilen; ii++) {
+ var newWord = newWords[ii];
+
+ addWord(newWord, []);
+
+ if (rule.combineable) {
+ for (var k = j + 1; k < _jlen; k++) {
+ var combineCode = ruleCodesArray[k];
+
+ var combineRule = this.rules[combineCode];
+
+ if (combineRule) {
+ if (combineRule.combineable && (rule.type != combineRule.type)) {
+ var otherNewWords = this._applyRule(newWord, combineRule);
+
+ for (var iii = 0, _iiilen = otherNewWords.length; iii < _iiilen; iii++) {
+ var otherNewWord = otherNewWords[iii];
+ addWord(otherNewWord, []);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+
+ if (code in this.compoundRuleCodes) {
+ this.compoundRuleCodes[code].push(word);
+ }
+ }
+ }
+ else {
+ addWord(word.trim(), []);
+ }
+ }
+
+ return dictionaryTable;
+ },
+
+
+ /**
+ * Removes comment lines and then cleans up blank lines and trailing whitespace.
+ *
+ * @param {String} data The data from a .dic file.
+ * @return {String} The cleaned-up data.
+ */
+
+ _removeDicComments : function (data) {
+ // I can't find any official documentation on it, but at least the de_DE
+ // dictionary uses tab-indented lines as comments.
+
+ // Remove comments
+ data = data.replace(/^\t.*$/mg, "");
+
+ return data;
+ },
+
+ parseRuleCodes : function (textCodes) {
+ if (!textCodes) {
+ return [];
+ }
+ else if (!("FLAG" in this.flags)) {
+ return textCodes.split("");
+ }
+ else if (this.flags.FLAG === "long") {
+ var flags = [];
+
+ for (var i = 0, _len = textCodes.length; i < _len; i += 2) {
+ flags.push(textCodes.substr(i, 2));
+ }
+
+ return flags;
+ }
+ else if (this.flags.FLAG === "num") {
+ return textCode.split(",");
+ }
+ },
+
+ /**
+ * Applies an affix rule to a word.
+ *
+ * @param {String} word The base word.
+ * @param {Object} rule The affix rule.
+ * @returns {String[]} The new words generated by the rule.
+ */
+
+ _applyRule : function (word, rule) {
+ var entries = rule.entries;
+ var newWords = [];
+
+ for (var i = 0, _len = entries.length; i < _len; i++) {
+ var entry = entries[i];
+
+ if (!entry.match || word.match(entry.match)) {
+ var newWord = word;
+
+ if (entry.remove) {
+ newWord = newWord.replace(entry.remove, "");
+ }
+
+ if (rule.type === "SFX") {
+ newWord = newWord + entry.add;
+ }
+ else {
+ newWord = entry.add + newWord;
+ }
+
+ newWords.push(newWord);
+
+ if ("continuationClasses" in entry) {
+ for (var j = 0, _jlen = entry.continuationClasses.length; j < _jlen; j++) {
+ var continuationRule = this.rules[entry.continuationClasses[j]];
+
+ if (continuationRule) {
+ newWords = newWords.concat(this._applyRule(newWord, continuationRule));
+ }
+ /*
+ else {
+ // This shouldn't happen, but it does, at least in the de_DE dictionary.
+ // I think the author mistakenly supplied lower-case rule codes instead
+ // of upper-case.
+ }
+ */
+ }
+ }
+ }
+ }
+
+ return newWords;
+ },
+
+ /**
+ * Checks whether a word or a capitalization variant exists in the current dictionary.
+ * The word is trimmed and several variations of capitalizations are checked.
+ * If you want to check a word without any changes made to it, call checkExact()
+ *
+ * @see http://blog.stevenlevithan.com/archives/faster-trim-javascript re:trimming function
+ *
+ * @param {String} aWord The word to check.
+ * @returns {Boolean}
+ */
+
+ check : function (aWord) {
+ // Remove leading and trailing whitespace
+ var trimmedWord = aWord.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
+
+ if (this.checkExact(trimmedWord)) {
+ return true;
+ }
+
+ // The exact word is not in the dictionary.
+ if (trimmedWord.toUpperCase() === trimmedWord) {
+ // The word was supplied in all uppercase.
+ // Check for a capitalized form of the word.
+ var capitalizedWord = trimmedWord[0] + trimmedWord.substring(1).toLowerCase();
+
+ if (this.hasFlag(capitalizedWord, "KEEPCASE")) {
+ // Capitalization variants are not allowed for this word.
+ return false;
+ }
+
+ if (this.checkExact(capitalizedWord)) {
+ return true;
+ }
+ }
+
+ var lowercaseWord = trimmedWord.toLowerCase();
+
+ if (lowercaseWord !== trimmedWord) {
+ if (this.hasFlag(lowercaseWord, "KEEPCASE")) {
+ // Capitalization variants are not allowed for this word.
+ return false;
+ }
+
+ // Check for a lowercase form
+ if (this.checkExact(lowercaseWord)) {
+ return true;
+ }
+ }
+
+ return false;
+ },
+
+ /**
+ * Checks whether a word exists in the current dictionary.
+ *
+ * @param {String} word The word to check.
+ * @returns {Boolean}
+ */
+
+ checkExact : function (word) {
+ var ruleCodes = this.dictionaryTable[word];
+
+ if (typeof ruleCodes === 'undefined') {
+ // Check if this might be a compound word.
+ if ("COMPOUNDMIN" in this.flags && word.length >= this.flags.COMPOUNDMIN) {
+ for (var i = 0, _len = this.compoundRules.length; i < _len; i++) {
+ if (word.match(this.compoundRules[i])) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+ else if (typeof ruleCodes === 'object') { // this.dictionary['hasOwnProperty'] will be a function.
+ for (var i = 0, _len = ruleCodes.length; i < _len; i++) {
+ if (!this.hasFlag(word, "ONLYINCOMPOUND", ruleCodes[i])) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+ },
+
+ /**
+ * Looks up whether a given word is flagged with a given flag.
+ *
+ * @param {String} word The word in question.
+ * @param {String} flag The flag in question.
+ * @return {Boolean}
+ */
+
+ hasFlag : function (word, flag, wordFlags) {
+ if (flag in this.flags) {
+ if (typeof wordFlags === 'undefined') {
+ var wordFlags = Array.prototype.concat.apply([], this.dictionaryTable[word]);
+ }
+
+ if (wordFlags && wordFlags.indexOf(this.flags[flag]) !== -1) {
+ return true;
+ }
+ }
+
+ return false;
+ },
+
+ /**
+ * Returns a list of suggestions for a misspelled word.
+ *
+ * @see http://www.norvig.com/spell-correct.html for the basis of this suggestor.
+ * This suggestor is primitive, but it works.
+ *
+ * @param {String} word The misspelling.
+ * @param {Number} [limit=5] The maximum number of suggestions to return.
+ * @returns {String[]} The array of suggestions.
+ */
+
+ alphabet : "",
+
+ suggest : function (word, limit) {
+ if (!limit) limit = 5;
+
+ if (this.check(word)) return [];
+
+ // Check the replacement table.
+ for (var i = 0, _len = this.replacementTable.length; i < _len; i++) {
+ var replacementEntry = this.replacementTable[i];
+
+ if (word.indexOf(replacementEntry[0]) !== -1) {
+ var correctedWord = word.replace(replacementEntry[0], replacementEntry[1]);
+
+ if (this.check(correctedWord)) {
+ return [ correctedWord ];
+ }
+ }
+ }
+
+ var self = this;
+ self.alphabet = "abcdefghijklmnopqrstuvwxyz";
+
+ /*
+ if (!self.alphabet) {
+ // Use the alphabet as implicitly defined by the words in the dictionary.
+ var alphaHash = {};
+
+ for (var i in self.dictionaryTable) {
+ for (var j = 0, _len = i.length; j < _len; j++) {
+ alphaHash[i[j]] = true;
+ }
+ }
+
+ for (var i in alphaHash) {
+ self.alphabet += i;
+ }
+
+ var alphaArray = self.alphabet.split("");
+ alphaArray.sort();
+ self.alphabet = alphaArray.join("");
+ }
+ */
+
+ function edits1(words) {
+ var rv = [];
+
+ for (var ii = 0, _iilen = words.length; ii < _iilen; ii++) {
+ var word = words[ii];
+
+ var splits = [];
+
+ for (var i = 0, _len = word.length + 1; i < _len; i++) {
+ splits.push([ word.substring(0, i), word.substring(i, word.length) ]);
+ }
+
+ var deletes = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1]) {
+ deletes.push(s[0] + s[1].substring(1));
+ }
+ }
+
+ var transposes = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1].length > 1) {
+ transposes.push(s[0] + s[1][1] + s[1][0] + s[1].substring(2));
+ }
+ }
+
+ var replaces = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1]) {
+ for (var j = 0, _jlen = self.alphabet.length; j < _jlen; j++) {
+ replaces.push(s[0] + self.alphabet[j] + s[1].substring(1));
+ }
+ }
+ }
+
+ var inserts = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1]) {
+ for (var j = 0, _jlen = self.alphabet.length; j < _jlen; j++) {
+ replaces.push(s[0] + self.alphabet[j] + s[1]);
+ }
+ }
+ }
+
+ rv = rv.concat(deletes);
+ rv = rv.concat(transposes);
+ rv = rv.concat(replaces);
+ rv = rv.concat(inserts);
+ }
+
+ return rv;
+ }
+
+ function known(words) {
+ var rv = [];
+
+ for (var i = 0; i < words.length; i++) {
+ if (self.check(words[i])) {
+ rv.push(words[i]);
+ }
+ }
+
+ return rv;
+ }
+
+ function correct(word) {
+ // Get the edit-distance-1 and edit-distance-2 forms of this word.
+ var ed1 = edits1([word]);
+ var ed2 = edits1(ed1);
+
+ var corrections = known(ed1).concat(known(ed2));
+
+ // Sort the edits based on how many different ways they were created.
+ var weighted_corrections = {};
+
+ for (var i = 0, _len = corrections.length; i < _len; i++) {
+ if (!(corrections[i] in weighted_corrections)) {
+ weighted_corrections[corrections[i]] = 1;
+ }
+ else {
+ weighted_corrections[corrections[i]] += 1;
+ }
+ }
+
+ var sorted_corrections = [];
+
+ for (var i in weighted_corrections) {
+ sorted_corrections.push([ i, weighted_corrections[i] ]);
+ }
+
+ function sorter(a, b) {
+ if (a[1] < b[1]) {
+ return -1;
+ }
+
+ return 1;
+ }
+
+ sorted_corrections.sort(sorter).reverse();
+
+ var rv = [];
+
+ for (var i = 0, _len = Math.min(limit, sorted_corrections.length); i < _len; i++) {
+ if (!self.hasFlag(sorted_corrections[i][0], "NOSUGGEST")) {
+ rv.push(sorted_corrections[i][0]);
+ }
+ }
+
+ return rv;
+ }
+
+ return correct(word);
+ }
+};
+
+// Support for use as a node.js module.
+if (typeof module !== 'undefined') {
+ module.exports = Typo;
+}
+}).call(this,require("buffer").Buffer,"/node_modules/typo-js")
+},{"buffer":3,"fs":2}],19:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+var CodeMirror = require("codemirror");
+
+CodeMirror.commands.tabAndIndentMarkdownList = function (cm) {
+ var ranges = cm.listSelections();
+ var pos = ranges[0].head;
+ var eolState = cm.getStateAfter(pos.line);
+ var inList = eolState.list !== false;
+
+ if (inList) {
+ cm.execCommand("indentMore");
+ return;
+ }
+
+ if (cm.options.indentWithTabs) {
+ cm.execCommand("insertTab");
+ }
+ else {
+ var spaces = Array(cm.options.tabSize + 1).join(" ");
+ cm.replaceSelection(spaces);
+ }
+};
+
+CodeMirror.commands.shiftTabAndUnindentMarkdownList = function (cm) {
+ var ranges = cm.listSelections();
+ var pos = ranges[0].head;
+ var eolState = cm.getStateAfter(pos.line);
+ var inList = eolState.list !== false;
+
+ if (inList) {
+ cm.execCommand("indentLess");
+ return;
+ }
+
+ if (cm.options.indentWithTabs) {
+ cm.execCommand("insertTab");
+ }
+ else {
+ var spaces = Array(cm.options.tabSize + 1).join(" ");
+ cm.replaceSelection(spaces);
+ }
+};
+
+},{"codemirror":10}],20:[function(require,module,exports){
+/*global require,module*/
+"use strict";
+var CodeMirror = require("codemirror");
+require("codemirror/addon/edit/continuelist.js");
+require("./codemirror/tablist");
+require("codemirror/addon/display/fullscreen.js");
+require("codemirror/mode/markdown/markdown.js");
+require("codemirror/addon/mode/overlay.js");
+require("codemirror/addon/display/placeholder.js");
+require("codemirror/addon/selection/mark-selection.js");
+require("codemirror/mode/gfm/gfm.js");
+require("codemirror/mode/xml/xml.js");
+var CodeMirrorSpellChecker = require("codemirror-spell-checker");
+var marked = require("marked");
+
+
+// Some variables
+var isMac = /Mac/.test(navigator.platform);
+
+// Mapping of actions that can be bound to keyboard shortcuts or toolbar buttons
+var bindings = {
+ "toggleBold": toggleBold,
+ "toggleItalic": toggleItalic,
+ "drawLink": drawLink,
+ "toggleHeadingSmaller": toggleHeadingSmaller,
+ "toggleHeadingBigger": toggleHeadingBigger,
+ "drawImage": drawImage,
+ "toggleBlockquote": toggleBlockquote,
+ "toggleOrderedList": toggleOrderedList,
+ "toggleUnorderedList": toggleUnorderedList,
+ "toggleCodeBlock": toggleCodeBlock,
+ "togglePreview": togglePreview,
+ "toggleStrikethrough": toggleStrikethrough,
+ "toggleHeading1": toggleHeading1,
+ "toggleHeading2": toggleHeading2,
+ "toggleHeading3": toggleHeading3,
+ "cleanBlock": cleanBlock,
+ "drawTable": drawTable,
+ "drawHorizontalRule": drawHorizontalRule,
+ "undo": undo,
+ "redo": redo,
+ "toggleSideBySide": toggleSideBySide,
+ "toggleFullScreen": toggleFullScreen
+};
+
+var shortcuts = {
+ "toggleBold": "Cmd-B",
+ "toggleItalic": "Cmd-I",
+ "drawLink": "Cmd-K",
+ "toggleHeadingSmaller": "Cmd-H",
+ "toggleHeadingBigger": "Shift-Cmd-H",
+ "cleanBlock": "Cmd-E",
+ "drawImage": "Cmd-Alt-I",
+ "toggleBlockquote": "Cmd-'",
+ "toggleOrderedList": "Cmd-Alt-L",
+ "toggleUnorderedList": "Cmd-L",
+ "toggleCodeBlock": "Cmd-Alt-C",
+ "togglePreview": "Cmd-P",
+ "toggleSideBySide": "F9",
+ "toggleFullScreen": "F11"
+};
+
+var getBindingName = function(f) {
+ for(var key in bindings) {
+ if(bindings[key] === f) {
+ return key;
+ }
+ }
+ return null;
+};
+
+var isMobile = function() {
+ var check = false;
+ (function(a) {
+ if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino|android|ipad|playbook|silk/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4))) check = true;
+ })(navigator.userAgent || navigator.vendor || window.opera);
+ return check;
+};
+
+
+/**
+ * Fix shortcut. Mac use Command, others use Ctrl.
+ */
+function fixShortcut(name) {
+ if(isMac) {
+ name = name.replace("Ctrl", "Cmd");
+ } else {
+ name = name.replace("Cmd", "Ctrl");
+ }
+ return name;
+}
+
+
+/**
+ * Create icon element for toolbar.
+ */
+function createIcon(options, enableTooltips, shortcuts) {
+ options = options || {};
+ var el = document.createElement("a");
+ enableTooltips = (enableTooltips == undefined) ? true : enableTooltips;
+
+ if(options.title && enableTooltips) {
+ el.title = createTootlip(options.title, options.action, shortcuts);
+
+ if(isMac) {
+ el.title = el.title.replace("Ctrl", "⌘");
+ el.title = el.title.replace("Alt", "⌥");
+ }
+ }
+
+ el.tabIndex = -1;
+ el.className = options.className;
+ return el;
+}
+
+function createSep() {
+ var el = document.createElement("i");
+ el.className = "separator";
+ el.innerHTML = "|";
+ return el;
+}
+
+function createTootlip(title, action, shortcuts) {
+ var actionName;
+ var tooltip = title;
+
+ if(action) {
+ actionName = getBindingName(action);
+ if(shortcuts[actionName]) {
+ tooltip += " (" + fixShortcut(shortcuts[actionName]) + ")";
+ }
+ }
+
+ return tooltip;
+}
+
+/**
+ * The state of CodeMirror at the given position.
+ */
+function getState(cm, pos) {
+ pos = pos || cm.getCursor("start");
+ var stat = cm.getTokenAt(pos);
+ if(!stat.type) return {};
+
+ var types = stat.type.split(" ");
+
+ var ret = {},
+ data, text;
+ for(var i = 0; i < types.length; i++) {
+ data = types[i];
+ if(data === "strong") {
+ ret.bold = true;
+ } else if(data === "variable-2") {
+ text = cm.getLine(pos.line);
+ if(/^\s*\d+\.\s/.test(text)) {
+ ret["ordered-list"] = true;
+ } else {
+ ret["unordered-list"] = true;
+ }
+ } else if(data === "atom") {
+ ret.quote = true;
+ } else if(data === "em") {
+ ret.italic = true;
+ } else if(data === "quote") {
+ ret.quote = true;
+ } else if(data === "strikethrough") {
+ ret.strikethrough = true;
+ } else if(data === "comment") {
+ ret.code = true;
+ } else if(data === "link") {
+ ret.link = true;
+ } else if(data === "tag") {
+ ret.image = true;
+ } else if(data.match(/^header(\-[1-6])?$/)) {
+ ret[data.replace("header", "heading")] = true;
+ }
+ }
+ return ret;
+}
+
+
+// Saved overflow setting
+var saved_overflow = "";
+
+/**
+ * Toggle full screen of the editor.
+ */
+function toggleFullScreen(editor) {
+ // Set fullscreen
+ var cm = editor.codemirror;
+ cm.setOption("fullScreen", !cm.getOption("fullScreen"));
+
+
+ // Prevent scrolling on body during fullscreen active
+ if(cm.getOption("fullScreen")) {
+ saved_overflow = document.body.style.overflow;
+ document.body.style.overflow = "hidden";
+ } else {
+ document.body.style.overflow = saved_overflow;
+ }
+
+
+ // Update toolbar class
+ var wrap = cm.getWrapperElement();
+
+ if(!/fullscreen/.test(wrap.previousSibling.className)) {
+ wrap.previousSibling.className += " fullscreen";
+ } else {
+ wrap.previousSibling.className = wrap.previousSibling.className.replace(/\s*fullscreen\b/, "");
+ }
+
+
+ // Update toolbar button
+ var toolbarButton = editor.toolbarElements.fullscreen;
+
+ if(!/active/.test(toolbarButton.className)) {
+ toolbarButton.className += " active";
+ } else {
+ toolbarButton.className = toolbarButton.className.replace(/\s*active\s*/g, "");
+ }
+
+
+ // Hide side by side if needed
+ var sidebyside = cm.getWrapperElement().nextSibling;
+ if(/editor-preview-active-side/.test(sidebyside.className))
+ toggleSideBySide(editor);
+}
+
+
+/**
+ * Action for toggling bold.
+ */
+function toggleBold(editor) {
+ _toggleBlock(editor, "bold", editor.options.blockStyles.bold);
+}
+
+
+/**
+ * Action for toggling italic.
+ */
+function toggleItalic(editor) {
+ _toggleBlock(editor, "italic", editor.options.blockStyles.italic);
+}
+
+
+/**
+ * Action for toggling strikethrough.
+ */
+function toggleStrikethrough(editor) {
+ _toggleBlock(editor, "strikethrough", "~~");
+}
+
+/**
+ * Action for toggling code block.
+ */
+function toggleCodeBlock(editor) {
+ var fenceCharsToInsert = editor.options.blockStyles.code;
+
+ function fencing_line(line) {
+ /* return true, if this is a ``` or ~~~ line */
+ if(typeof line !== "object") {
+ throw "fencing_line() takes a 'line' object (not a line number, or line text). Got: " + typeof line + ": " + line;
+ }
+ return line.styles && line.styles[2] && line.styles[2].indexOf("formatting-code-block") !== -1;
+ }
+
+ function token_state(token) {
+ // base goes an extra level deep when mode backdrops are used, e.g. spellchecker on
+ return token.state.base.base || token.state.base;
+ }
+
+ function code_type(cm, line_num, line, firstTok, lastTok) {
+ /*
+ * Return "single", "indented", "fenced" or false
+ *
+ * cm and line_num are required. Others are optional for efficiency
+ * To check in the middle of a line, pass in firstTok yourself.
+ */
+ line = line || cm.getLineHandle(line_num);
+ firstTok = firstTok || cm.getTokenAt({
+ line: line_num,
+ ch: 1
+ });
+ lastTok = lastTok || (!!line.text && cm.getTokenAt({
+ line: line_num,
+ ch: line.text.length - 1
+ }));
+ var types = firstTok.type ? firstTok.type.split(" ") : [];
+ if(lastTok && token_state(lastTok).indentedCode) {
+ // have to check last char, since first chars of first line aren"t marked as indented
+ return "indented";
+ } else if(types.indexOf("comment") === -1) {
+ // has to be after "indented" check, since first chars of first indented line aren"t marked as such
+ return false;
+ } else if(token_state(firstTok).fencedChars || token_state(lastTok).fencedChars || fencing_line(line)) {
+ return "fenced";
+ } else {
+ return "single";
+ }
+ }
+
+ function insertFencingAtSelection(cm, cur_start, cur_end, fenceCharsToInsert) {
+ var start_line_sel = cur_start.line + 1,
+ end_line_sel = cur_end.line + 1,
+ sel_multi = cur_start.line !== cur_end.line,
+ repl_start = fenceCharsToInsert + "\n",
+ repl_end = "\n" + fenceCharsToInsert;
+ if(sel_multi) {
+ end_line_sel++;
+ }
+ // handle last char including \n or not
+ if(sel_multi && cur_end.ch === 0) {
+ repl_end = fenceCharsToInsert + "\n";
+ end_line_sel--;
+ }
+ _replaceSelection(cm, false, [repl_start, repl_end]);
+ cm.setSelection({
+ line: start_line_sel,
+ ch: 0
+ }, {
+ line: end_line_sel,
+ ch: 0
+ });
+ }
+
+ var cm = editor.codemirror,
+ cur_start = cm.getCursor("start"),
+ cur_end = cm.getCursor("end"),
+ tok = cm.getTokenAt({
+ line: cur_start.line,
+ ch: cur_start.ch || 1
+ }), // avoid ch 0 which is a cursor pos but not token
+ line = cm.getLineHandle(cur_start.line),
+ is_code = code_type(cm, cur_start.line, line, tok);
+ var block_start, block_end, lineCount;
+
+ if(is_code === "single") {
+ // similar to some SimpleMDE _toggleBlock logic
+ var start = line.text.slice(0, cur_start.ch).replace("`", ""),
+ end = line.text.slice(cur_start.ch).replace("`", "");
+ cm.replaceRange(start + end, {
+ line: cur_start.line,
+ ch: 0
+ }, {
+ line: cur_start.line,
+ ch: 99999999999999
+ });
+ cur_start.ch--;
+ if(cur_start !== cur_end) {
+ cur_end.ch--;
+ }
+ cm.setSelection(cur_start, cur_end);
+ cm.focus();
+ } else if(is_code === "fenced") {
+ if(cur_start.line !== cur_end.line || cur_start.ch !== cur_end.ch) {
+ // use selection
+
+ // find the fenced line so we know what type it is (tilde, backticks, number of them)
+ for(block_start = cur_start.line; block_start >= 0; block_start--) {
+ line = cm.getLineHandle(block_start);
+ if(fencing_line(line)) {
+ break;
+ }
+ }
+ var fencedTok = cm.getTokenAt({
+ line: block_start,
+ ch: 1
+ });
+ var fence_chars = token_state(fencedTok).fencedChars;
+ var start_text, start_line;
+ var end_text, end_line;
+ // check for selection going up against fenced lines, in which case we don't want to add more fencing
+ if(fencing_line(cm.getLineHandle(cur_start.line))) {
+ start_text = "";
+ start_line = cur_start.line;
+ } else if(fencing_line(cm.getLineHandle(cur_start.line - 1))) {
+ start_text = "";
+ start_line = cur_start.line - 1;
+ } else {
+ start_text = fence_chars + "\n";
+ start_line = cur_start.line;
+ }
+ if(fencing_line(cm.getLineHandle(cur_end.line))) {
+ end_text = "";
+ end_line = cur_end.line;
+ if(cur_end.ch === 0) {
+ end_line += 1;
+ }
+ } else if(cur_end.ch !== 0 && fencing_line(cm.getLineHandle(cur_end.line + 1))) {
+ end_text = "";
+ end_line = cur_end.line + 1;
+ } else {
+ end_text = fence_chars + "\n";
+ end_line = cur_end.line + 1;
+ }
+ if(cur_end.ch === 0) {
+ // full last line selected, putting cursor at beginning of next
+ end_line -= 1;
+ }
+ cm.operation(function() {
+ // end line first, so that line numbers don't change
+ cm.replaceRange(end_text, {
+ line: end_line,
+ ch: 0
+ }, {
+ line: end_line + (end_text ? 0 : 1),
+ ch: 0
+ });
+ cm.replaceRange(start_text, {
+ line: start_line,
+ ch: 0
+ }, {
+ line: start_line + (start_text ? 0 : 1),
+ ch: 0
+ });
+ });
+ cm.setSelection({
+ line: start_line + (start_text ? 1 : 0),
+ ch: 0
+ }, {
+ line: end_line + (start_text ? 1 : -1),
+ ch: 0
+ });
+ cm.focus();
+ } else {
+ // no selection, search for ends of this fenced block
+ var search_from = cur_start.line;
+ if(fencing_line(cm.getLineHandle(cur_start.line))) { // gets a little tricky if cursor is right on a fenced line
+ if(code_type(cm, cur_start.line + 1) === "fenced") {
+ block_start = cur_start.line;
+ search_from = cur_start.line + 1; // for searching for "end"
+ } else {
+ block_end = cur_start.line;
+ search_from = cur_start.line - 1; // for searching for "start"
+ }
+ }
+ if(block_start === undefined) {
+ for(block_start = search_from; block_start >= 0; block_start--) {
+ line = cm.getLineHandle(block_start);
+ if(fencing_line(line)) {
+ break;
+ }
+ }
+ }
+ if(block_end === undefined) {
+ lineCount = cm.lineCount();
+ for(block_end = search_from; block_end < lineCount; block_end++) {
+ line = cm.getLineHandle(block_end);
+ if(fencing_line(line)) {
+ break;
+ }
+ }
+ }
+ cm.operation(function() {
+ cm.replaceRange("", {
+ line: block_start,
+ ch: 0
+ }, {
+ line: block_start + 1,
+ ch: 0
+ });
+ cm.replaceRange("", {
+ line: block_end - 1,
+ ch: 0
+ }, {
+ line: block_end,
+ ch: 0
+ });
+ });
+ cm.focus();
+ }
+ } else if(is_code === "indented") {
+ if(cur_start.line !== cur_end.line || cur_start.ch !== cur_end.ch) {
+ // use selection
+ block_start = cur_start.line;
+ block_end = cur_end.line;
+ if(cur_end.ch === 0) {
+ block_end--;
+ }
+ } else {
+ // no selection, search for ends of this indented block
+ for(block_start = cur_start.line; block_start >= 0; block_start--) {
+ line = cm.getLineHandle(block_start);
+ if(line.text.match(/^\s*$/)) {
+ // empty or all whitespace - keep going
+ continue;
+ } else {
+ if(code_type(cm, block_start, line) !== "indented") {
+ block_start += 1;
+ break;
+ }
+ }
+ }
+ lineCount = cm.lineCount();
+ for(block_end = cur_start.line; block_end < lineCount; block_end++) {
+ line = cm.getLineHandle(block_end);
+ if(line.text.match(/^\s*$/)) {
+ // empty or all whitespace - keep going
+ continue;
+ } else {
+ if(code_type(cm, block_end, line) !== "indented") {
+ block_end -= 1;
+ break;
+ }
+ }
+ }
+ }
+ // if we are going to un-indent based on a selected set of lines, and the next line is indented too, we need to
+ // insert a blank line so that the next line(s) continue to be indented code
+ var next_line = cm.getLineHandle(block_end + 1),
+ next_line_last_tok = next_line && cm.getTokenAt({
+ line: block_end + 1,
+ ch: next_line.text.length - 1
+ }),
+ next_line_indented = next_line_last_tok && token_state(next_line_last_tok).indentedCode;
+ if(next_line_indented) {
+ cm.replaceRange("\n", {
+ line: block_end + 1,
+ ch: 0
+ });
+ }
+
+ for(var i = block_start; i <= block_end; i++) {
+ cm.indentLine(i, "subtract"); // TODO: this doesn't get tracked in the history, so can't be undone :(
+ }
+ cm.focus();
+ } else {
+ // insert code formatting
+ var no_sel_and_starting_of_line = (cur_start.line === cur_end.line && cur_start.ch === cur_end.ch && cur_start.ch === 0);
+ var sel_multi = cur_start.line !== cur_end.line;
+ if(no_sel_and_starting_of_line || sel_multi) {
+ insertFencingAtSelection(cm, cur_start, cur_end, fenceCharsToInsert);
+ } else {
+ _replaceSelection(cm, false, ["`", "`"]);
+ }
+ }
+}
+
+/**
+ * Action for toggling blockquote.
+ */
+function toggleBlockquote(editor) {
+ var cm = editor.codemirror;
+ _toggleLine(cm, "quote");
+}
+
+/**
+ * Action for toggling heading size: normal -> h1 -> h2 -> h3 -> h4 -> h5 -> h6 -> normal
+ */
+function toggleHeadingSmaller(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, "smaller");
+}
+
+/**
+ * Action for toggling heading size: normal -> h6 -> h5 -> h4 -> h3 -> h2 -> h1 -> normal
+ */
+function toggleHeadingBigger(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, "bigger");
+}
+
+/**
+ * Action for toggling heading size 1
+ */
+function toggleHeading1(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, undefined, 1);
+}
+
+/**
+ * Action for toggling heading size 2
+ */
+function toggleHeading2(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, undefined, 2);
+}
+
+/**
+ * Action for toggling heading size 3
+ */
+function toggleHeading3(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, undefined, 3);
+}
+
+
+/**
+ * Action for toggling ul.
+ */
+function toggleUnorderedList(editor) {
+ var cm = editor.codemirror;
+ _toggleLine(cm, "unordered-list");
+}
+
+
+/**
+ * Action for toggling ol.
+ */
+function toggleOrderedList(editor) {
+ var cm = editor.codemirror;
+ _toggleLine(cm, "ordered-list");
+}
+
+/**
+ * Action for clean block (remove headline, list, blockquote code, markers)
+ */
+function cleanBlock(editor) {
+ var cm = editor.codemirror;
+ _cleanBlock(cm);
+}
+
+/**
+ * Action for drawing a link.
+ */
+function drawLink(editor) {
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+ var options = editor.options;
+ var url = "http://";
+ if(options.promptURLs) {
+ url = prompt(options.promptTexts.link);
+ if(!url) {
+ return false;
+ }
+ }
+ _replaceSelection(cm, stat.link, options.insertTexts.link, url);
+}
+
+/**
+ * Action for drawing an img.
+ */
+function drawImage(editor) {
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+ var options = editor.options;
+ var url = "http://";
+ if(options.promptURLs) {
+ url = prompt(options.promptTexts.image);
+ if(!url) {
+ return false;
+ }
+ }
+ _replaceSelection(cm, stat.image, options.insertTexts.image, url);
+}
+
+/**
+ * Action for drawing a table.
+ */
+function drawTable(editor) {
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+ var options = editor.options;
+ _replaceSelection(cm, stat.table, options.insertTexts.table);
+}
+
+/**
+ * Action for drawing a horizontal rule.
+ */
+function drawHorizontalRule(editor) {
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+ var options = editor.options;
+ _replaceSelection(cm, stat.image, options.insertTexts.horizontalRule);
+}
+
+
+/**
+ * Undo action.
+ */
+function undo(editor) {
+ var cm = editor.codemirror;
+ cm.undo();
+ cm.focus();
+}
+
+
+/**
+ * Redo action.
+ */
+function redo(editor) {
+ var cm = editor.codemirror;
+ cm.redo();
+ cm.focus();
+}
+
+
+/**
+ * Toggle side by side preview
+ */
+function toggleSideBySide(editor) {
+ var cm = editor.codemirror;
+ var wrapper = cm.getWrapperElement();
+ var preview = wrapper.nextSibling;
+ var toolbarButton = editor.toolbarElements["side-by-side"];
+ var useSideBySideListener = false;
+ if(/editor-preview-active-side/.test(preview.className)) {
+ preview.className = preview.className.replace(
+ /\s*editor-preview-active-side\s*/g, ""
+ );
+ toolbarButton.className = toolbarButton.className.replace(/\s*active\s*/g, "");
+ wrapper.className = wrapper.className.replace(/\s*CodeMirror-sided\s*/g, " ");
+ } else {
+ // When the preview button is clicked for the first time,
+ // give some time for the transition from editor.css to fire and the view to slide from right to left,
+ // instead of just appearing.
+ setTimeout(function() {
+ if(!cm.getOption("fullScreen"))
+ toggleFullScreen(editor);
+ preview.className += " editor-preview-active-side";
+ }, 1);
+ toolbarButton.className += " active";
+ wrapper.className += " CodeMirror-sided";
+ useSideBySideListener = true;
+ }
+
+ // Hide normal preview if active
+ var previewNormal = wrapper.lastChild;
+ if(/editor-preview-active/.test(previewNormal.className)) {
+ previewNormal.className = previewNormal.className.replace(
+ /\s*editor-preview-active\s*/g, ""
+ );
+ var toolbar = editor.toolbarElements.preview;
+ var toolbar_div = wrapper.previousSibling;
+ toolbar.className = toolbar.className.replace(/\s*active\s*/g, "");
+ toolbar_div.className = toolbar_div.className.replace(/\s*disabled-for-preview*/g, "");
+ }
+
+ var sideBySideRenderingFunction = function() {
+ preview.innerHTML = editor.options.previewRender(editor.value(), preview);
+ };
+
+ if(!cm.sideBySideRenderingFunction) {
+ cm.sideBySideRenderingFunction = sideBySideRenderingFunction;
+ }
+
+ if(useSideBySideListener) {
+ preview.innerHTML = editor.options.previewRender(editor.value(), preview);
+ cm.on("update", cm.sideBySideRenderingFunction);
+ } else {
+ cm.off("update", cm.sideBySideRenderingFunction);
+ }
+
+ // Refresh to fix selection being off (#309)
+ cm.refresh();
+}
+
+
+/**
+ * Preview action.
+ */
+function togglePreview(editor) {
+ var cm = editor.codemirror;
+ var wrapper = cm.getWrapperElement();
+ var toolbar_div = wrapper.previousSibling;
+ var toolbar = editor.options.toolbar ? editor.toolbarElements.preview : false;
+ var preview = wrapper.lastChild;
+ if(!preview || !/editor-preview/.test(preview.className)) {
+ preview = document.createElement("div");
+ preview.className = "editor-preview";
+ wrapper.appendChild(preview);
+ }
+ if(/editor-preview-active/.test(preview.className)) {
+ preview.className = preview.className.replace(
+ /\s*editor-preview-active\s*/g, ""
+ );
+ if(toolbar) {
+ toolbar.className = toolbar.className.replace(/\s*active\s*/g, "");
+ toolbar_div.className = toolbar_div.className.replace(/\s*disabled-for-preview*/g, "");
+ }
+ } else {
+ // When the preview button is clicked for the first time,
+ // give some time for the transition from editor.css to fire and the view to slide from right to left,
+ // instead of just appearing.
+ setTimeout(function() {
+ preview.className += " editor-preview-active";
+ }, 1);
+ if(toolbar) {
+ toolbar.className += " active";
+ toolbar_div.className += " disabled-for-preview";
+ }
+ }
+ preview.innerHTML = editor.options.previewRender(editor.value(), preview);
+
+ // Turn off side by side if needed
+ var sidebyside = cm.getWrapperElement().nextSibling;
+ if(/editor-preview-active-side/.test(sidebyside.className))
+ toggleSideBySide(editor);
+}
+
+function _replaceSelection(cm, active, startEnd, url) {
+ if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
+ return;
+
+ var text;
+ var start = startEnd[0];
+ var end = startEnd[1];
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+ if(url) {
+ end = end.replace("#url#", url);
+ }
+ if(active) {
+ text = cm.getLine(startPoint.line);
+ start = text.slice(0, startPoint.ch);
+ end = text.slice(startPoint.ch);
+ cm.replaceRange(start + end, {
+ line: startPoint.line,
+ ch: 0
+ });
+ } else {
+ text = cm.getSelection();
+ cm.replaceSelection(start + text + end);
+
+ startPoint.ch += start.length;
+ if(startPoint !== endPoint) {
+ endPoint.ch += start.length;
+ }
+ }
+ cm.setSelection(startPoint, endPoint);
+ cm.focus();
+}
+
+
+function _toggleHeading(cm, direction, size) {
+ if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
+ return;
+
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+ for(var i = startPoint.line; i <= endPoint.line; i++) {
+ (function(i) {
+ var text = cm.getLine(i);
+ var currHeadingLevel = text.search(/[^#]/);
+
+ if(direction !== undefined) {
+ if(currHeadingLevel <= 0) {
+ if(direction == "bigger") {
+ text = "###### " + text;
+ } else {
+ text = "# " + text;
+ }
+ } else if(currHeadingLevel == 6 && direction == "smaller") {
+ text = text.substr(7);
+ } else if(currHeadingLevel == 1 && direction == "bigger") {
+ text = text.substr(2);
+ } else {
+ if(direction == "bigger") {
+ text = text.substr(1);
+ } else {
+ text = "#" + text;
+ }
+ }
+ } else {
+ if(size == 1) {
+ if(currHeadingLevel <= 0) {
+ text = "# " + text;
+ } else if(currHeadingLevel == size) {
+ text = text.substr(currHeadingLevel + 1);
+ } else {
+ text = "# " + text.substr(currHeadingLevel + 1);
+ }
+ } else if(size == 2) {
+ if(currHeadingLevel <= 0) {
+ text = "## " + text;
+ } else if(currHeadingLevel == size) {
+ text = text.substr(currHeadingLevel + 1);
+ } else {
+ text = "## " + text.substr(currHeadingLevel + 1);
+ }
+ } else {
+ if(currHeadingLevel <= 0) {
+ text = "### " + text;
+ } else if(currHeadingLevel == size) {
+ text = text.substr(currHeadingLevel + 1);
+ } else {
+ text = "### " + text.substr(currHeadingLevel + 1);
+ }
+ }
+ }
+
+ cm.replaceRange(text, {
+ line: i,
+ ch: 0
+ }, {
+ line: i,
+ ch: 99999999999999
+ });
+ })(i);
+ }
+ cm.focus();
+}
+
+
+function _toggleLine(cm, name) {
+ if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
+ return;
+
+ var stat = getState(cm);
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+ var repl = {
+ "quote": /^(\s*)\>\s+/,
+ "unordered-list": /^(\s*)(\*|\-|\+)\s+/,
+ "ordered-list": /^(\s*)\d+\.\s+/
+ };
+ var map = {
+ "quote": "> ",
+ "unordered-list": "* ",
+ "ordered-list": "1. "
+ };
+ for(var i = startPoint.line; i <= endPoint.line; i++) {
+ (function(i) {
+ var text = cm.getLine(i);
+ if(stat[name]) {
+ text = text.replace(repl[name], "$1");
+ } else {
+ text = map[name] + text;
+ }
+ cm.replaceRange(text, {
+ line: i,
+ ch: 0
+ }, {
+ line: i,
+ ch: 99999999999999
+ });
+ })(i);
+ }
+ cm.focus();
+}
+
+function _toggleBlock(editor, type, start_chars, end_chars) {
+ if(/editor-preview-active/.test(editor.codemirror.getWrapperElement().lastChild.className))
+ return;
+
+ end_chars = (typeof end_chars === "undefined") ? start_chars : end_chars;
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+
+ var text;
+ var start = start_chars;
+ var end = end_chars;
+
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+
+ if(stat[type]) {
+ text = cm.getLine(startPoint.line);
+ start = text.slice(0, startPoint.ch);
+ end = text.slice(startPoint.ch);
+ if(type == "bold") {
+ start = start.replace(/(\*\*|__)(?![\s\S]*(\*\*|__))/, "");
+ end = end.replace(/(\*\*|__)/, "");
+ } else if(type == "italic") {
+ start = start.replace(/(\*|_)(?![\s\S]*(\*|_))/, "");
+ end = end.replace(/(\*|_)/, "");
+ } else if(type == "strikethrough") {
+ start = start.replace(/(\*\*|~~)(?![\s\S]*(\*\*|~~))/, "");
+ end = end.replace(/(\*\*|~~)/, "");
+ }
+ cm.replaceRange(start + end, {
+ line: startPoint.line,
+ ch: 0
+ }, {
+ line: startPoint.line,
+ ch: 99999999999999
+ });
+
+ if(type == "bold" || type == "strikethrough") {
+ startPoint.ch -= 2;
+ if(startPoint !== endPoint) {
+ endPoint.ch -= 2;
+ }
+ } else if(type == "italic") {
+ startPoint.ch -= 1;
+ if(startPoint !== endPoint) {
+ endPoint.ch -= 1;
+ }
+ }
+ } else {
+ text = cm.getSelection();
+ if(type == "bold") {
+ text = text.split("**").join("");
+ text = text.split("__").join("");
+ } else if(type == "italic") {
+ text = text.split("*").join("");
+ text = text.split("_").join("");
+ } else if(type == "strikethrough") {
+ text = text.split("~~").join("");
+ }
+ cm.replaceSelection(start + text + end);
+
+ startPoint.ch += start_chars.length;
+ endPoint.ch = startPoint.ch + text.length;
+ }
+
+ cm.setSelection(startPoint, endPoint);
+ cm.focus();
+}
+
+function _cleanBlock(cm) {
+ if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
+ return;
+
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+ var text;
+
+ for(var line = startPoint.line; line <= endPoint.line; line++) {
+ text = cm.getLine(line);
+ text = text.replace(/^[ ]*([# ]+|\*|\-|[> ]+|[0-9]+(.|\)))[ ]*/, "");
+
+ cm.replaceRange(text, {
+ line: line,
+ ch: 0
+ }, {
+ line: line,
+ ch: 99999999999999
+ });
+ }
+}
+
+// Merge the properties of one object into another.
+function _mergeProperties(target, source) {
+ for(var property in source) {
+ if(source.hasOwnProperty(property)) {
+ if(source[property] instanceof Array) {
+ target[property] = source[property].concat(target[property] instanceof Array ? target[property] : []);
+ } else if(
+ source[property] !== null &&
+ typeof source[property] === "object" &&
+ source[property].constructor === Object
+ ) {
+ target[property] = _mergeProperties(target[property] || {}, source[property]);
+ } else {
+ target[property] = source[property];
+ }
+ }
+ }
+
+ return target;
+}
+
+// Merge an arbitrary number of objects into one.
+function extend(target) {
+ for(var i = 1; i < arguments.length; i++) {
+ target = _mergeProperties(target, arguments[i]);
+ }
+
+ return target;
+}
+
+/* The right word count in respect for CJK. */
+function wordCount(data) {
+ var pattern = /[a-zA-Z0-9_\u0392-\u03c9\u0410-\u04F9]+|[\u4E00-\u9FFF\u3400-\u4dbf\uf900-\ufaff\u3040-\u309f\uac00-\ud7af]+/g;
+ var m = data.match(pattern);
+ var count = 0;
+ if(m === null) return count;
+ for(var i = 0; i < m.length; i++) {
+ if(m[i].charCodeAt(0) >= 0x4E00) {
+ count += m[i].length;
+ } else {
+ count += 1;
+ }
+ }
+ return count;
+}
+
+var toolbarBuiltInButtons = {
+ "bold": {
+ name: "bold",
+ action: toggleBold,
+ className: "fa fa-bold",
+ title: "Bold",
+ default: true
+ },
+ "italic": {
+ name: "italic",
+ action: toggleItalic,
+ className: "fa fa-italic",
+ title: "Italic",
+ default: true
+ },
+ "strikethrough": {
+ name: "strikethrough",
+ action: toggleStrikethrough,
+ className: "fa fa-strikethrough",
+ title: "Strikethrough"
+ },
+ "heading": {
+ name: "heading",
+ action: toggleHeadingSmaller,
+ className: "fa fa-header",
+ title: "Heading",
+ default: true
+ },
+ "heading-smaller": {
+ name: "heading-smaller",
+ action: toggleHeadingSmaller,
+ className: "fa fa-header fa-header-x fa-header-smaller",
+ title: "Smaller Heading"
+ },
+ "heading-bigger": {
+ name: "heading-bigger",
+ action: toggleHeadingBigger,
+ className: "fa fa-header fa-header-x fa-header-bigger",
+ title: "Bigger Heading"
+ },
+ "heading-1": {
+ name: "heading-1",
+ action: toggleHeading1,
+ className: "fa fa-header fa-header-x fa-header-1",
+ title: "Big Heading"
+ },
+ "heading-2": {
+ name: "heading-2",
+ action: toggleHeading2,
+ className: "fa fa-header fa-header-x fa-header-2",
+ title: "Medium Heading"
+ },
+ "heading-3": {
+ name: "heading-3",
+ action: toggleHeading3,
+ className: "fa fa-header fa-header-x fa-header-3",
+ title: "Small Heading"
+ },
+ "separator-1": {
+ name: "separator-1"
+ },
+ "code": {
+ name: "code",
+ action: toggleCodeBlock,
+ className: "fa fa-code",
+ title: "Code"
+ },
+ "quote": {
+ name: "quote",
+ action: toggleBlockquote,
+ className: "fa fa-quote-left",
+ title: "Quote",
+ default: true
+ },
+ "unordered-list": {
+ name: "unordered-list",
+ action: toggleUnorderedList,
+ className: "fa fa-list-ul",
+ title: "Generic List",
+ default: true
+ },
+ "ordered-list": {
+ name: "ordered-list",
+ action: toggleOrderedList,
+ className: "fa fa-list-ol",
+ title: "Numbered List",
+ default: true
+ },
+ "clean-block": {
+ name: "clean-block",
+ action: cleanBlock,
+ className: "fa fa-eraser fa-clean-block",
+ title: "Clean block"
+ },
+ "separator-2": {
+ name: "separator-2"
+ },
+ "link": {
+ name: "link",
+ action: drawLink,
+ className: "fa fa-link",
+ title: "Create Link",
+ default: true
+ },
+ "image": {
+ name: "image",
+ action: drawImage,
+ className: "fa fa-picture-o",
+ title: "Insert Image",
+ default: true
+ },
+ "table": {
+ name: "table",
+ action: drawTable,
+ className: "fa fa-table",
+ title: "Insert Table"
+ },
+ "horizontal-rule": {
+ name: "horizontal-rule",
+ action: drawHorizontalRule,
+ className: "fa fa-minus",
+ title: "Insert Horizontal Line"
+ },
+ "separator-3": {
+ name: "separator-3"
+ },
+ "preview": {
+ name: "preview",
+ action: togglePreview,
+ className: "fa fa-eye no-disable",
+ title: "Toggle Preview",
+ default: true
+ },
+ "side-by-side": {
+ name: "side-by-side",
+ action: toggleSideBySide,
+ className: "fa fa-columns no-disable no-mobile",
+ title: "Toggle Side by Side",
+ default: true
+ },
+ "fullscreen": {
+ name: "fullscreen",
+ action: toggleFullScreen,
+ className: "fa fa-arrows-alt no-disable no-mobile",
+ title: "Toggle Fullscreen",
+ default: true
+ },
+ "separator-4": {
+ name: "separator-4"
+ },
+ "guide": {
+ name: "guide",
+ action: "https://simplemde.com/markdown-guide",
+ className: "fa fa-question-circle",
+ title: "Markdown Guide",
+ default: true
+ },
+ "separator-5": {
+ name: "separator-5"
+ },
+ "undo": {
+ name: "undo",
+ action: undo,
+ className: "fa fa-undo no-disable",
+ title: "Undo"
+ },
+ "redo": {
+ name: "redo",
+ action: redo,
+ className: "fa fa-repeat no-disable",
+ title: "Redo"
+ }
+};
+
+var insertTexts = {
+ link: ["[", "](#url#)"],
+ image: ["![](", "#url#)"],
+ table: ["", "\n\n| Column 1 | Column 2 | Column 3 |\n| -------- | -------- | -------- |\n| Text | Text | Text |\n\n"],
+ horizontalRule: ["", "\n\n-----\n\n"]
+};
+
+var promptTexts = {
+ link: "URL for the link:",
+ image: "URL of the image:"
+};
+
+var blockStyles = {
+ "bold": "**",
+ "code": "```",
+ "italic": "*"
+};
+
+/**
+ * Interface of SimpleMDE.
+ */
+function SimpleMDE(options) {
+ // Handle options parameter
+ options = options || {};
+
+
+ // Used later to refer to it"s parent
+ options.parent = this;
+
+
+ // Check if Font Awesome needs to be auto downloaded
+ var autoDownloadFA = true;
+
+ if(options.autoDownloadFontAwesome === false) {
+ autoDownloadFA = false;
+ }
+
+ if(options.autoDownloadFontAwesome !== true) {
+ var styleSheets = document.styleSheets;
+ for(var i = 0; i < styleSheets.length; i++) {
+ if(!styleSheets[i].href)
+ continue;
+
+ if(styleSheets[i].href.indexOf("//maxcdn.bootstrapcdn.com/font-awesome/") > -1) {
+ autoDownloadFA = false;
+ }
+ }
+ }
+
+ if(autoDownloadFA) {
+ var link = document.createElement("link");
+ link.rel = "stylesheet";
+ link.href = "https://maxcdn.bootstrapcdn.com/font-awesome/latest/css/font-awesome.min.css";
+ document.getElementsByTagName("head")[0].appendChild(link);
+ }
+
+
+ // Find the textarea to use
+ if(options.element) {
+ this.element = options.element;
+ } else if(options.element === null) {
+ // This means that the element option was specified, but no element was found
+ console.log("SimpleMDE: Error. No element was found.");
+ return;
+ }
+
+
+ // Handle toolbar
+ if(options.toolbar === undefined) {
+ // Initialize
+ options.toolbar = [];
+
+
+ // Loop over the built in buttons, to get the preferred order
+ for(var key in toolbarBuiltInButtons) {
+ if(toolbarBuiltInButtons.hasOwnProperty(key)) {
+ if(key.indexOf("separator-") != -1) {
+ options.toolbar.push("|");
+ }
+
+ if(toolbarBuiltInButtons[key].default === true || (options.showIcons && options.showIcons.constructor === Array && options.showIcons.indexOf(key) != -1)) {
+ options.toolbar.push(key);
+ }
+ }
+ }
+ }
+
+
+ // Handle status bar
+ if(!options.hasOwnProperty("status")) {
+ options.status = ["autosave", "lines", "words", "cursor"];
+ }
+
+
+ // Add default preview rendering function
+ if(!options.previewRender) {
+ options.previewRender = function(plainText) {
+ // Note: "this" refers to the options object
+ return this.parent.markdown(plainText);
+ };
+ }
+
+
+ // Set default options for parsing config
+ options.parsingConfig = extend({
+ highlightFormatting: true // needed for toggleCodeBlock to detect types of code
+ }, options.parsingConfig || {});
+
+
+ // Merging the insertTexts, with the given options
+ options.insertTexts = extend({}, insertTexts, options.insertTexts || {});
+
+
+ // Merging the promptTexts, with the given options
+ options.promptTexts = promptTexts;
+
+
+ // Merging the blockStyles, with the given options
+ options.blockStyles = extend({}, blockStyles, options.blockStyles || {});
+
+
+ // Merging the shortcuts, with the given options
+ options.shortcuts = extend({}, shortcuts, options.shortcuts || {});
+
+
+ // Change unique_id to uniqueId for backwards compatibility
+ if(options.autosave != undefined && options.autosave.unique_id != undefined && options.autosave.unique_id != "")
+ options.autosave.uniqueId = options.autosave.unique_id;
+
+
+ // Update this options
+ this.options = options;
+
+
+ // Auto render
+ this.render();
+
+
+ // The codemirror component is only available after rendering
+ // so, the setter for the initialValue can only run after
+ // the element has been rendered
+ if(options.initialValue && (!this.options.autosave || this.options.autosave.foundSavedValue !== true)) {
+ this.value(options.initialValue);
+ }
+}
+
+/**
+ * Default markdown render.
+ */
+SimpleMDE.prototype.markdown = function(text) {
+ if(marked) {
+ // Initialize
+ var markedOptions = {};
+
+
+ // Update options
+ if(this.options && this.options.renderingConfig && this.options.renderingConfig.singleLineBreaks === false) {
+ markedOptions.breaks = false;
+ } else {
+ markedOptions.breaks = true;
+ }
+
+ if(this.options && this.options.renderingConfig && this.options.renderingConfig.codeSyntaxHighlighting === true && window.hljs) {
+ markedOptions.highlight = function(code) {
+ return window.hljs.highlightAuto(code).value;
+ };
+ }
+
+
+ // Set options
+ marked.setOptions(markedOptions);
+
+
+ // Return
+ return marked(text);
+ }
+};
+
+/**
+ * Render editor to the given element.
+ */
+SimpleMDE.prototype.render = function(el) {
+ if(!el) {
+ el = this.element || document.getElementsByTagName("textarea")[0];
+ }
+
+ if(this._rendered && this._rendered === el) {
+ // Already rendered.
+ return;
+ }
+
+ this.element = el;
+ var options = this.options;
+
+ var self = this;
+ var keyMaps = {};
+
+ for(var key in options.shortcuts) {
+ // null stands for "do not bind this command"
+ if(options.shortcuts[key] !== null && bindings[key] !== null) {
+ (function(key) {
+ keyMaps[fixShortcut(options.shortcuts[key])] = function() {
+ bindings[key](self);
+ };
+ })(key);
+ }
+ }
+
+ keyMaps["Enter"] = "newlineAndIndentContinueMarkdownList";
+ keyMaps["Tab"] = "tabAndIndentMarkdownList";
+ keyMaps["Shift-Tab"] = "shiftTabAndUnindentMarkdownList";
+ keyMaps["Esc"] = function(cm) {
+ if(cm.getOption("fullScreen")) toggleFullScreen(self);
+ };
+
+ document.addEventListener("keydown", function(e) {
+ e = e || window.event;
+
+ if(e.keyCode == 27) {
+ if(self.codemirror.getOption("fullScreen")) toggleFullScreen(self);
+ }
+ }, false);
+
+ var mode, backdrop;
+ if(options.spellChecker !== false) {
+ mode = "spell-checker";
+ backdrop = options.parsingConfig;
+ backdrop.name = "gfm";
+ backdrop.gitHubSpice = false;
+
+ CodeMirrorSpellChecker({
+ codeMirrorInstance: CodeMirror
+ });
+ } else {
+ mode = options.parsingConfig;
+ mode.name = "gfm";
+ mode.gitHubSpice = false;
+ }
+
+ this.codemirror = CodeMirror.fromTextArea(el, {
+ mode: mode,
+ backdrop: backdrop,
+ theme: "paper",
+ tabSize: (options.tabSize != undefined) ? options.tabSize : 2,
+ indentUnit: (options.tabSize != undefined) ? options.tabSize : 2,
+ indentWithTabs: (options.indentWithTabs === false) ? false : true,
+ lineNumbers: false,
+ autofocus: (options.autofocus === true) ? true : false,
+ extraKeys: keyMaps,
+ lineWrapping: (options.lineWrapping === false) ? false : true,
+ allowDropFileTypes: ["text/plain"],
+ placeholder: options.placeholder || el.getAttribute("placeholder") || "",
+ styleSelectedText: (options.styleSelectedText != undefined) ? options.styleSelectedText : true
+ });
+
+ if(options.forceSync === true) {
+ var cm = this.codemirror;
+ cm.on("change", function() {
+ cm.save();
+ });
+ }
+
+ this.gui = {};
+
+ if(options.toolbar !== false) {
+ this.gui.toolbar = this.createToolbar();
+ }
+ if(options.status !== false) {
+ this.gui.statusbar = this.createStatusbar();
+ }
+ if(options.autosave != undefined && options.autosave.enabled === true) {
+ this.autosave();
+ }
+
+ this.gui.sideBySide = this.createSideBySide();
+
+ this._rendered = this.element;
+
+
+ // Fixes CodeMirror bug (#344)
+ var temp_cm = this.codemirror;
+ setTimeout(function() {
+ temp_cm.refresh();
+ }.bind(temp_cm), 0);
+};
+
+// Safari, in Private Browsing Mode, looks like it supports localStorage but all calls to setItem throw QuotaExceededError. We're going to detect this and set a variable accordingly.
+function isLocalStorageAvailable() {
+ if(typeof localStorage === "object") {
+ try {
+ localStorage.setItem("smde_localStorage", 1);
+ localStorage.removeItem("smde_localStorage");
+ } catch(e) {
+ return false;
+ }
+ } else {
+ return false;
+ }
+
+ return true;
+}
+
+SimpleMDE.prototype.autosave = function() {
+ if(isLocalStorageAvailable()) {
+ var simplemde = this;
+
+ if(this.options.autosave.uniqueId == undefined || this.options.autosave.uniqueId == "") {
+ console.log("SimpleMDE: You must set a uniqueId to use the autosave feature");
+ return;
+ }
+
+ if(simplemde.element.form != null && simplemde.element.form != undefined) {
+ simplemde.element.form.addEventListener("submit", function() {
+ localStorage.removeItem("smde_" + simplemde.options.autosave.uniqueId);
+ });
+ }
+
+ if(this.options.autosave.loaded !== true) {
+ if(typeof localStorage.getItem("smde_" + this.options.autosave.uniqueId) == "string" && localStorage.getItem("smde_" + this.options.autosave.uniqueId) != "") {
+ this.codemirror.setValue(localStorage.getItem("smde_" + this.options.autosave.uniqueId));
+ this.options.autosave.foundSavedValue = true;
+ }
+
+ this.options.autosave.loaded = true;
+ }
+
+ localStorage.setItem("smde_" + this.options.autosave.uniqueId, simplemde.value());
+
+ var el = document.getElementById("autosaved");
+ if(el != null && el != undefined && el != "") {
+ var d = new Date();
+ var hh = d.getHours();
+ var m = d.getMinutes();
+ var dd = "am";
+ var h = hh;
+ if(h >= 12) {
+ h = hh - 12;
+ dd = "pm";
+ }
+ if(h == 0) {
+ h = 12;
+ }
+ m = m < 10 ? "0" + m : m;
+
+ el.innerHTML = "Autosaved: " + h + ":" + m + " " + dd;
+ }
+
+ this.autosaveTimeoutId = setTimeout(function() {
+ simplemde.autosave();
+ }, this.options.autosave.delay || 10000);
+ } else {
+ console.log("SimpleMDE: localStorage not available, cannot autosave");
+ }
+};
+
+SimpleMDE.prototype.clearAutosavedValue = function() {
+ if(isLocalStorageAvailable()) {
+ if(this.options.autosave == undefined || this.options.autosave.uniqueId == undefined || this.options.autosave.uniqueId == "") {
+ console.log("SimpleMDE: You must set a uniqueId to clear the autosave value");
+ return;
+ }
+
+ localStorage.removeItem("smde_" + this.options.autosave.uniqueId);
+ } else {
+ console.log("SimpleMDE: localStorage not available, cannot autosave");
+ }
+};
+
+SimpleMDE.prototype.createSideBySide = function() {
+ var cm = this.codemirror;
+ var wrapper = cm.getWrapperElement();
+ var preview = wrapper.nextSibling;
+
+ if(!preview || !/editor-preview-side/.test(preview.className)) {
+ preview = document.createElement("div");
+ preview.className = "editor-preview-side";
+ wrapper.parentNode.insertBefore(preview, wrapper.nextSibling);
+ }
+
+ // Syncs scroll editor -> preview
+ var cScroll = false;
+ var pScroll = false;
+ cm.on("scroll", function(v) {
+ if(cScroll) {
+ cScroll = false;
+ return;
+ }
+ pScroll = true;
+ var height = v.getScrollInfo().height - v.getScrollInfo().clientHeight;
+ var ratio = parseFloat(v.getScrollInfo().top) / height;
+ var move = (preview.scrollHeight - preview.clientHeight) * ratio;
+ preview.scrollTop = move;
+ });
+
+ // Syncs scroll preview -> editor
+ preview.onscroll = function() {
+ if(pScroll) {
+ pScroll = false;
+ return;
+ }
+ cScroll = true;
+ var height = preview.scrollHeight - preview.clientHeight;
+ var ratio = parseFloat(preview.scrollTop) / height;
+ var move = (cm.getScrollInfo().height - cm.getScrollInfo().clientHeight) * ratio;
+ cm.scrollTo(0, move);
+ };
+ return preview;
+};
+
+SimpleMDE.prototype.createToolbar = function(items) {
+ items = items || this.options.toolbar;
+
+ if(!items || items.length === 0) {
+ return;
+ }
+ var i;
+ for(i = 0; i < items.length; i++) {
+ if(toolbarBuiltInButtons[items[i]] != undefined) {
+ items[i] = toolbarBuiltInButtons[items[i]];
+ }
+ }
+
+ var bar = document.createElement("div");
+ bar.className = "editor-toolbar";
+
+ var self = this;
+
+ var toolbarData = {};
+ self.toolbar = items;
+
+ for(i = 0; i < items.length; i++) {
+ if(items[i].name == "guide" && self.options.toolbarGuideIcon === false)
+ continue;
+
+ if(self.options.hideIcons && self.options.hideIcons.indexOf(items[i].name) != -1)
+ continue;
+
+ // Fullscreen does not work well on mobile devices (even tablets)
+ // In the future, hopefully this can be resolved
+ if((items[i].name == "fullscreen" || items[i].name == "side-by-side") && isMobile())
+ continue;
+
+
+ // Don't include trailing separators
+ if(items[i] === "|") {
+ var nonSeparatorIconsFollow = false;
+
+ for(var x = (i + 1); x < items.length; x++) {
+ if(items[x] !== "|" && (!self.options.hideIcons || self.options.hideIcons.indexOf(items[x].name) == -1)) {
+ nonSeparatorIconsFollow = true;
+ }
+ }
+
+ if(!nonSeparatorIconsFollow)
+ continue;
+ }
+
+
+ // Create the icon and append to the toolbar
+ (function(item) {
+ var el;
+ if(item === "|") {
+ el = createSep();
+ } else {
+ el = createIcon(item, self.options.toolbarTips, self.options.shortcuts);
+ }
+
+ // bind events, special for info
+ if(item.action) {
+ if(typeof item.action === "function") {
+ el.onclick = function(e) {
+ e.preventDefault();
+ item.action(self);
+ };
+ } else if(typeof item.action === "string") {
+ el.href = item.action;
+ el.target = "_blank";
+ }
+ }
+
+ toolbarData[item.name || item] = el;
+ bar.appendChild(el);
+ })(items[i]);
+ }
+
+ self.toolbarElements = toolbarData;
+
+ var cm = this.codemirror;
+ cm.on("cursorActivity", function() {
+ var stat = getState(cm);
+
+ for(var key in toolbarData) {
+ (function(key) {
+ var el = toolbarData[key];
+ if(stat[key]) {
+ el.className += " active";
+ } else if(key != "fullscreen" && key != "side-by-side") {
+ el.className = el.className.replace(/\s*active\s*/g, "");
+ }
+ })(key);
+ }
+ });
+
+ var cmWrapper = cm.getWrapperElement();
+ cmWrapper.parentNode.insertBefore(bar, cmWrapper);
+ return bar;
+};
+
+SimpleMDE.prototype.createStatusbar = function(status) {
+ // Initialize
+ status = status || this.options.status;
+ var options = this.options;
+ var cm = this.codemirror;
+
+
+ // Make sure the status variable is valid
+ if(!status || status.length === 0)
+ return;
+
+
+ // Set up the built-in items
+ var items = [];
+ var i, onUpdate, defaultValue;
+
+ for(i = 0; i < status.length; i++) {
+ // Reset some values
+ onUpdate = undefined;
+ defaultValue = undefined;
+
+
+ // Handle if custom or not
+ if(typeof status[i] === "object") {
+ items.push({
+ className: status[i].className,
+ defaultValue: status[i].defaultValue,
+ onUpdate: status[i].onUpdate
+ });
+ } else {
+ var name = status[i];
+
+ if(name === "words") {
+ defaultValue = function(el) {
+ el.innerHTML = wordCount(cm.getValue());
+ };
+ onUpdate = function(el) {
+ el.innerHTML = wordCount(cm.getValue());
+ };
+ } else if(name === "lines") {
+ defaultValue = function(el) {
+ el.innerHTML = cm.lineCount();
+ };
+ onUpdate = function(el) {
+ el.innerHTML = cm.lineCount();
+ };
+ } else if(name === "cursor") {
+ defaultValue = function(el) {
+ el.innerHTML = "0:0";
+ };
+ onUpdate = function(el) {
+ var pos = cm.getCursor();
+ el.innerHTML = pos.line + ":" + pos.ch;
+ };
+ } else if(name === "autosave") {
+ defaultValue = function(el) {
+ if(options.autosave != undefined && options.autosave.enabled === true) {
+ el.setAttribute("id", "autosaved");
+ }
+ };
+ }
+
+ items.push({
+ className: name,
+ defaultValue: defaultValue,
+ onUpdate: onUpdate
+ });
+ }
+ }
+
+
+ // Create element for the status bar
+ var bar = document.createElement("div");
+ bar.className = "editor-statusbar";
+
+
+ // Create a new span for each item
+ for(i = 0; i < items.length; i++) {
+ // Store in temporary variable
+ var item = items[i];
+
+
+ // Create span element
+ var el = document.createElement("span");
+ el.className = item.className;
+
+
+ // Ensure the defaultValue is a function
+ if(typeof item.defaultValue === "function") {
+ item.defaultValue(el);
+ }
+
+
+ // Ensure the onUpdate is a function
+ if(typeof item.onUpdate === "function") {
+ // Create a closure around the span of the current action, then execute the onUpdate handler
+ this.codemirror.on("update", (function(el, item) {
+ return function() {
+ item.onUpdate(el);
+ };
+ }(el, item)));
+ }
+
+
+ // Append the item to the status bar
+ bar.appendChild(el);
+ }
+
+
+ // Insert the status bar into the DOM
+ var cmWrapper = this.codemirror.getWrapperElement();
+ cmWrapper.parentNode.insertBefore(bar, cmWrapper.nextSibling);
+ return bar;
+};
+
+/**
+ * Get or set the text content.
+ */
+SimpleMDE.prototype.value = function(val) {
+ if(val === undefined) {
+ return this.codemirror.getValue();
+ } else {
+ this.codemirror.getDoc().setValue(val);
+ return this;
+ }
+};
+
+
+/**
+ * Bind static methods for exports.
+ */
+SimpleMDE.toggleBold = toggleBold;
+SimpleMDE.toggleItalic = toggleItalic;
+SimpleMDE.toggleStrikethrough = toggleStrikethrough;
+SimpleMDE.toggleBlockquote = toggleBlockquote;
+SimpleMDE.toggleHeadingSmaller = toggleHeadingSmaller;
+SimpleMDE.toggleHeadingBigger = toggleHeadingBigger;
+SimpleMDE.toggleHeading1 = toggleHeading1;
+SimpleMDE.toggleHeading2 = toggleHeading2;
+SimpleMDE.toggleHeading3 = toggleHeading3;
+SimpleMDE.toggleCodeBlock = toggleCodeBlock;
+SimpleMDE.toggleUnorderedList = toggleUnorderedList;
+SimpleMDE.toggleOrderedList = toggleOrderedList;
+SimpleMDE.cleanBlock = cleanBlock;
+SimpleMDE.drawLink = drawLink;
+SimpleMDE.drawImage = drawImage;
+SimpleMDE.drawTable = drawTable;
+SimpleMDE.drawHorizontalRule = drawHorizontalRule;
+SimpleMDE.undo = undo;
+SimpleMDE.redo = redo;
+SimpleMDE.togglePreview = togglePreview;
+SimpleMDE.toggleSideBySide = toggleSideBySide;
+SimpleMDE.toggleFullScreen = toggleFullScreen;
+
+/**
+ * Bind instance methods for exports.
+ */
+SimpleMDE.prototype.toggleBold = function() {
+ toggleBold(this);
+};
+SimpleMDE.prototype.toggleItalic = function() {
+ toggleItalic(this);
+};
+SimpleMDE.prototype.toggleStrikethrough = function() {
+ toggleStrikethrough(this);
+};
+SimpleMDE.prototype.toggleBlockquote = function() {
+ toggleBlockquote(this);
+};
+SimpleMDE.prototype.toggleHeadingSmaller = function() {
+ toggleHeadingSmaller(this);
+};
+SimpleMDE.prototype.toggleHeadingBigger = function() {
+ toggleHeadingBigger(this);
+};
+SimpleMDE.prototype.toggleHeading1 = function() {
+ toggleHeading1(this);
+};
+SimpleMDE.prototype.toggleHeading2 = function() {
+ toggleHeading2(this);
+};
+SimpleMDE.prototype.toggleHeading3 = function() {
+ toggleHeading3(this);
+};
+SimpleMDE.prototype.toggleCodeBlock = function() {
+ toggleCodeBlock(this);
+};
+SimpleMDE.prototype.toggleUnorderedList = function() {
+ toggleUnorderedList(this);
+};
+SimpleMDE.prototype.toggleOrderedList = function() {
+ toggleOrderedList(this);
+};
+SimpleMDE.prototype.cleanBlock = function() {
+ cleanBlock(this);
+};
+SimpleMDE.prototype.drawLink = function() {
+ drawLink(this);
+};
+SimpleMDE.prototype.drawImage = function() {
+ drawImage(this);
+};
+SimpleMDE.prototype.drawTable = function() {
+ drawTable(this);
+};
+SimpleMDE.prototype.drawHorizontalRule = function() {
+ drawHorizontalRule(this);
+};
+SimpleMDE.prototype.undo = function() {
+ undo(this);
+};
+SimpleMDE.prototype.redo = function() {
+ redo(this);
+};
+SimpleMDE.prototype.togglePreview = function() {
+ togglePreview(this);
+};
+SimpleMDE.prototype.toggleSideBySide = function() {
+ toggleSideBySide(this);
+};
+SimpleMDE.prototype.toggleFullScreen = function() {
+ toggleFullScreen(this);
+};
+
+SimpleMDE.prototype.isPreviewActive = function() {
+ var cm = this.codemirror;
+ var wrapper = cm.getWrapperElement();
+ var preview = wrapper.lastChild;
+
+ return /editor-preview-active/.test(preview.className);
+};
+
+SimpleMDE.prototype.isSideBySideActive = function() {
+ var cm = this.codemirror;
+ var wrapper = cm.getWrapperElement();
+ var preview = wrapper.nextSibling;
+
+ return /editor-preview-active-side/.test(preview.className);
+};
+
+SimpleMDE.prototype.isFullscreenActive = function() {
+ var cm = this.codemirror;
+
+ return cm.getOption("fullScreen");
+};
+
+SimpleMDE.prototype.getState = function() {
+ var cm = this.codemirror;
+
+ return getState(cm);
+};
+
+SimpleMDE.prototype.toTextArea = function() {
+ var cm = this.codemirror;
+ var wrapper = cm.getWrapperElement();
+
+ if(wrapper.parentNode) {
+ if(this.gui.toolbar) {
+ wrapper.parentNode.removeChild(this.gui.toolbar);
+ }
+ if(this.gui.statusbar) {
+ wrapper.parentNode.removeChild(this.gui.statusbar);
+ }
+ if(this.gui.sideBySide) {
+ wrapper.parentNode.removeChild(this.gui.sideBySide);
+ }
+ }
+
+ cm.toTextArea();
+
+ if(this.autosaveTimeoutId) {
+ clearTimeout(this.autosaveTimeoutId);
+ this.autosaveTimeoutId = undefined;
+ this.clearAutosavedValue();
+ }
+};
+
+module.exports = SimpleMDE;
+},{"./codemirror/tablist":19,"codemirror":10,"codemirror-spell-checker":4,"codemirror/addon/display/fullscreen.js":5,"codemirror/addon/display/placeholder.js":6,"codemirror/addon/edit/continuelist.js":7,"codemirror/addon/mode/overlay.js":8,"codemirror/addon/selection/mark-selection.js":9,"codemirror/mode/gfm/gfm.js":11,"codemirror/mode/markdown/markdown.js":12,"codemirror/mode/xml/xml.js":14,"marked":17}]},{},[20])(20)
+});
\ No newline at end of file
projects / shellwiki / commitdiff