X-Git-Url: http://git.plutz.net/?a=blobdiff_plain;f=markdown.awk;h=7ec1280d34784d35377afd860d88b81f47df4906;hb=31cfd890119d30e03201d29c307203ccd304e1c0;hp=eb40210c9bc78c8cacadda40389c73df2e8d6d6b;hpb=cc08744f66835d9ad6e9ec7f2c3fa9ed17e712ba;p=cgilite
diff --git a/markdown.awk b/markdown.awk
index eb40210..7ec1280 100755
--- a/markdown.awk
+++ b/markdown.awk
@@ -5,6 +5,20 @@
# Meant to support all features of John Grubers basic Markdown
# + a number of common extensions, mostly inspired by Pandoc Markdown
+# Copyright 2021 - 2023 Paul Hänsch
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED âAS ISâ AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+# IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
# Supported Features / TODO:
# ==========================
# [x] done [ ] todo [-] not planned ? unsure
@@ -41,7 +55,7 @@
# - [x] Automatic (
ends section
+# - [ ]
terminates section
# - [x] Automatic heading identifiers (custom)
# - [x] Fenced code blocks (php md, pandoc)
# - [x] Fenced code attributes
@@ -140,6 +154,11 @@ function inline( line, LOCAL, len, text, code, href, guard ) {
return "" code "
" inline( substr( line, len + 1 ) )
}
+ # Macros
+ } else if ( match( line, /^<<([^>]|>[^>])+>>/ ) ) {
+ len = RLENGTH;
+ return "" HTML( substr( line, 3, len - 4 ) ) "
" inline(substr(line, len + 1));
+
# Wiki style links
} else if ( match( line, /^\[\[([^]|]+)(\|[^]]+)?\]\]/) ) {
len = RLENGTH;
@@ -160,6 +179,11 @@ function inline( line, LOCAL, len, text, code, href, guard ) {
href = URL( substr( line, 2, len - 2) );
return "" href "" inline( substr( line, len + 1) );
+ # Verbatim inline HTML
+ } else if ( AllowHTML && match( line, /^(|<\?([^\?]|\?[^>])*\?>|]*>|])*\]\]>|<\/[A-Za-z][A-Za-z0-9-]*[[:space:]]*>|<[A-Za-z][A-Za-z0-9-]*([[:space:]]+[A-Za-z_:][A-Za-z0-9_\.:-]*([[:space:]]*=[[:space:]]*([[:space:]"'=<>`]+|"[^"]*"|'[^']*'))?)*[[:space:]]*\/?>)/) ) {
+ len = RLENGTH;
+ return substr( line, 1, len) inline(substr(line, len + 1));
+
# inline links
# ,_______________________Image____________________________,
} else if ( match(line, /^\[([^]]+|!\[[^]]*\]\([^"\)]+([ \t]+"[^"]+")?\)(\{[a-zA-Z \t-]*\})?)\]\(([^"\)]+)([[:space:]]+"([^"]+)")?\)/) ) {
@@ -276,16 +300,6 @@ function inline( line, LOCAL, len, text, code, href, guard ) {
len = RLENGTH;
return "" inline( substr( line, 2, len - 2 ) ) "" inline( substr( line, len + 1 ) );
- # Macros
- } else if ( AllowMacros && match( line, /^<<([^>]|>[^>])+>>/) ) {
- len = RLENGTH;
- return macro( substr( line, 3, len - 4 ) ) inline(substr(line, len + 1));
-
- # Verbatim inline HTML
- } else if ( AllowHTML && match( line, /^(|<\?([^\?]|\?[^>])*\?>|]*>|])*\]\]>|<\/[A-Za-z][A-Za-z0-9-]*[[:space:]]*>|<[A-Za-z][A-Za-z0-9-]*([[:space:]]+[A-Za-z_:][A-Za-z0-9_\.:-]*([[:space:]]*=[[:space:]]*([[:space:]"'=<>`]+|"[^"]*"|'[^']*'))?)*[[:space:]]*\/?>)/) ) {
- len = RLENGTH;
- return substr( line, 1, len) inline(substr(line, len + 1));
-
# Literal HTML entities
} else if ( match( line, /^&([a-zA-Z]{2,32}|#[0-9]{1,7}|#[xX][0-9a-fA-F]{1,6});/) ) {
len = RLENGTH;
@@ -388,7 +402,7 @@ function _block( block, LOCAL, st, len, text, title, attrib, href, guard, code,
# Pipe Tables (pandoc / php md / gfm )
} else if ( match(block, "^((\\|)?([^\n]+\\|)+[^\n]+(\\|)?)\n" \
- "((\\|)?:?(-+:?[\\|+])+:?-+:?(\\|)?)\n" \
+ "((\\|)?(:?-+:?[\\|+])+:?-+:?(\\|)?)\n" \
"((\\|)?([^\n]+\\|)+[^\n]+(\\|)?(\n|$))+" ) ) {
len = RLENGTH; st = RSTART;
#initialize empty arrays
@@ -674,10 +688,10 @@ function _block( block, LOCAL, st, len, text, title, attrib, href, guard, code,
}
# Macros (standalone <" HTML(text) "
" _block(substr(block, len + 1) );
# Definition list
} else if (match( block, "^(([ \t]*\n)*[^:\n \t][^\n]+\n" \
@@ -690,39 +704,25 @@ function _block( block, LOCAL, st, len, text, title, attrib, href, guard, code,
list = substr( block, 1, RLENGTH); block = substr( block, RLENGTH + 1);
return "\n\n" _dlist( list ) "
\n" _block( block );
- # Unordered list
- } else if ( match( block, "(^|\n) ? ? ?[-+*][ \t][^\n]+(\n|$)" \
- "(([ \t]*\n)* ? ? ?[-+*][ \t][^\n]+(\n|$)" \
- "|([ \t]*\n)*( ? ? ?\t| +)[^\n]+(\n|$)" \
- "|[^\n \t][^\n]+(\n|$))*" ) ) {
- st = RSTART; len = RLENGTH; list = substr( block, RSTART, RLENGTH);
- sub("^\n", "", list); match(list, "^ ? ? ?[-+*]"); indent = RLENGTH;
- gsub( "(^|\n) {0," indent - 1 "}", "\n", list); sub("^\n", "", list);
-
- text = substr(block, 1, st - 1); block = substr(block, st + len);
- if (match( list, "\n([0-9]+\\.|#\\.)[ \t]" )) {
- block = substr(list, RSTART + 1) block;
- list = substr(list, 1, RSTART);
- }
-
- return _block( text ) "\n" _list( list, "[-+*]" ) "
\n" _block( block );
-
- # Ordered list
- } else if ( match( block, "(^|\n) ? ? ?([0-9]+\\.|#\\.)[ \t][^\n]+(\n|$)" \
- "(([ \t]*\n)* ? ? ?([0-9]+\\.|#\\.)[ \t][^\n]+(\n|$)" \
- "|([ \t]*\n)*( ? ? ?\t| +)[^\n]+(\n|$)" \
- "|[^\n \t][^\n]+(\n|$))*" ) ) {
- st = RSTART; len = RLENGTH; list = substr( block, RSTART, RLENGTH);
- sub("^\n", "", list); match(list, "^ ? ? ?[0-9#]"); indent = RLENGTH;
- gsub( "(^|\n) {0," indent - 1 "}", "\n", list); sub("^\n", "", list);
-
- text = substr(block, 1, st - 1); block = substr(block, st + len);
- if (match( list, "\n[-+*][ \t]" )) {
- block = substr(list, RSTART + 1) block;
- list = substr(list, 1, RSTART);
- }
-
- return _block( text ) "\n" _list( list, "([0-9]+\\.|#\\.)" ) "
\n" _block( block );
+ # Unordered list types
+ } else if ( text = _startlist( block, "ul", "-", "([+*â¢]|[0-9]+\\.|#\\.|[0-9]+\\)|#\\))") ) {
+ return text;
+ } else if ( text = _startlist( block, "ul", "\\+", "([-*â¢]|[0-9]+\\.|#\\.|[0-9]+\\)|#\\))") ) {
+ return text;
+ } else if ( text = _startlist( block, "ul", "\\*", "([-+â¢]|[0-9]+\\.|#\\.|[0-9]+\\)|#\\))") ) {
+ return text;
+ } else if ( text = _startlist( block, "ul", "â¢", "([-+*]|[0-9]+\\.|#\\.|[0-9]+\\)|#\\))") ) {
+ return text;
+
+ # Ordered list types
+ } else if ( text = _startlist( block, "ol", "[0-9]+\\.", "([-+*â¢]|#\\.|[0-9]+\\)|#\\))") ) {
+ return text;
+ } else if ( text = _startlist( block, "ol", "[0-9]+\\)", "([-+*â¢]|[0-9]+\\.|#\\.|#\\))") ) {
+ return text;
+ } else if ( text = _startlist( block, "ol", "#\\.", "([-+*â¢]|[0-9]+\\.|[0-9]+\\)|#\\))") ) {
+ return text;
+ } else if ( text = _startlist( block, "ol", "#\\)", "([-+*â¢]|[0-9]+\\.|#\\.|[0-9]+\\))") ) {
+ return text;
# Split paragraphs
} else if ( match( block, /(^|\n)[[:space:]]*(\n|$)/) ) {
@@ -741,16 +741,38 @@ function _block( block, LOCAL, st, len, text, title, attrib, href, guard, code,
}
}
-function _list (block, mark, LOCAL, len, st, text, indent, task) {
+function _startlist(block, type, mark, exclude, LOCAL, st, len, list, indent, text) {
+ if (match( block, "(^|\n) ? ? ?" mark "[ \t][^\n]+(\n|$)" \
+ "(([ \t]*\n)* ? ? ?" mark "[ \t][^\n]+(\n|$)" \
+ "|([ \t]*\n)*( ? ? ?\t| +)[^\n]+(\n|$)" \
+ "|[^\n \t][^\n]+(\n|$))*" ) ) {
+ st = RSTART; len = RLENGTH; list = substr( block, st, len);
+
+ sub("^\n", "", list); match(list, "^ ? ? ?"); indent = RLENGTH;
+ gsub( "(^|\n) {0," indent "}", "\n", list); sub("^\n", "", list);
+
+ text = substr(block, 1, st - 1); block = substr(block, st + len);
+ if (match(text, /\n[[:space:]]*\n/)) return 0;
+ if (match(text, "(^|\n) ? ? ?" exclude "[ \t][^\n]+")) return 0;
+ if (match( list, "\n" exclude "[ \t]" )) {
+ block = substr(list, RSTART + 1) block;
+ list = substr(list, 1, RSTART);
+ }
+
+ return _block( text ) "<" type ">\n" _list( list, mark ) "" type ">\n" _block( block );
+ } else return 0;
+}
+
+function _list (block, mark, p, LOCAL, len, st, text, indent, task) {
if ( match(block, "^([ \t]*\n)*$")) return;
+
match(block, "^" mark "[ \t]"); indent = RLENGTH;
sub("^" mark "[ \t]", "", block);
- match( block, "\n" mark "[ \t][^\n]+(\n|$)" \
- "(([ \t]*\n)* ? ? ?" mark "[ \t][^\n]+(\n|$)" \
- "|([ \t]*\n)*( ? ? ?\t| +)[^\n]+(\n|$)" \
- "|[^\n \t][^\n]+(\n|$))*");
- (RLENGTH == -1) ? st = length(block) + 1 : st = RSTART;
+ if (match(block, /\n[ \t]*\n/)) p = 1;
+
+ match( block, "\n" mark "[ \t][^\n]+(\n|$)" );
+ st = (RLENGTH == -1) ? length(block) + 1 : RSTART;
text = substr(block, 1, st); block = substr(block, st + 1);
gsub("\n {0," indent "}", "\n", text);
@@ -760,13 +782,13 @@ function _list (block, mark, LOCAL, len, st, text, indent, task) {
match( text, /^\[\/\]/ ) ? "
(
]|[^p]|<[^/]|[^<])*\n$" )) gsub( "(^|
\n$)", "", text); - return task text "\n" _list(block, mark); + return task text "\n" _list(block, mark, p); } function _dlist (block, LOCAL, len, st, text, indent, p) {