# 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 “AS IS” 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
#
# Extensions - Block elements:
# ----------------------------
+# - [x] Automatic <section>-wrapping (custom)
# - ? Heading identifiers (php md, pandoc)
+# - [x] Heading attributes (custom)
+# - [ ] <hr> terminates section
# - [x] Automatic heading identifiers (custom)
# - [x] Fenced code blocks (php md, pandoc)
# - [x] Fenced code attributes
+# - [x] Images (as block elements, <figure>-wrapped) (custom)
+# - [x] reference style block images
# - [/] Tables
# - ? Simple table (pandoc)
# - ? Multiline table (pandoc)
# - [x] Grid table (pandoc)
-# - [x] Pipe table (php md pandoc)
+# - [x] Headerless
+# - [x] Pipe table (php md, pandoc)
# - [x] Line blocks (pandoc)
# - [x] Task lists (pandoc, custom)
-# - [ ] Definition lists (php md, pandoc)
+# - [x] Definition lists (php md, pandoc)
# - [-] Numbered example lists (pandoc)
# - [-] Metadata blocks (pandoc)
# - [x] Metadata blocks (custom)
# - [x] ^Superscript^ ~Subscript~ (pandoc)
# - [-] Bracketed spans (pandoc)
# - [-] Inline attributes (pandoc)
+# - [x] Image attributes (custom, pandoc inspired, not for reference style)
+# - [x] Wiki style links [[PageName]] / [[PageName|Link Text]]
# - [-] TEX-Math (pandoc)
# - ? Footnotes (php md)
# - ? Abbreviations (php md)
# - ? ... three-dot ellipsis (smartypants)
# - [-] en-dash (smartypants)
# - [ ] Automatic em-dash / en-dash
-# - [ ] Automatic -> Arrows <-
+# - [x] Automatic -> Arrows <- (custom)
function debug(text) { printf "\n---\n%s\n---\n", text > "/dev/stderr"; }
return text;
}
-function inline( line, LOCAL, len, code, href, guard ) {
- nu = "(\\\\\\\\|\\\\[^\\\\]|[^\\\\_]|_[[:alnum:]])*" # not underline (except when escaped)
- na = "(\\\\\\\\|\\\\[^\\\\]|[^\\\\\\*])*" # not asterisk (except when escaped)
- ieu = "_([^_[:space:]]|[^_[:space:]]" nu "[^_[:space:]])_" # inner <em> (underline)
- isu = "__([^_[:space:]]|[^_[:space:]]" nu "[^_[:space:]])__" # inner <strong> (underline)
- iea = "\\*([^\\*[:space:]]|[^\\*[:space:]]" na "[^\\*[:space:]])\\*" # inner <em> (asterisk)
- isa = "\\*\\*([^\\*[:space:]]|[^\\*[:space:]]" na "[^\\*[:space:]])\\*\\*" # inner <strong> (asterisk)
-
- if ( line ~ /^$/ ) { # Recursion End
- return "";
-
- # omit processing of escaped characters
- } else if ( line ~ /^\\[]\\`\*_\{\}\(\)#\+-\.![]/) {
- return substr(line, 2, 1) inline( substr(line, 3) );
-
- # hard brakes
- } else if ( match(line, /^ \n/) ) {
- return "<br />\n" inline( substr(line, RLENGTH + 1) );
-
- # ``code spans``
- } else if ( match( line, /^`+/) ) {
- len = RLENGTH
- guard = substr( line, 1, len )
- if ( match(line, guard ".*" guard) ) {
- code = substr( line, len + 1, match( substr(line, len + 1), guard ) - 1)
- len = 2 * length(guard) + length(code)
- # strip single surrounding white spaces
- code = gensub( / (.*) /, "\\1", "1" , code)
- # escape HTML within code span
- gsub( /&/, "\\&", code ); gsub( /</, "\\<", code ); gsub( />/, "\\>", code );
- return "<code>" code "</code>" inline( substr( line, len + 1 ) )
- }
+function URL ( text, sharp ) {
+ gsub( /&/, "%26", text );
+ gsub( /"/, "%22", text );
+ gsub( /'/, "%27", text );
+ gsub( /`/, "%60", text );
+ gsub( /\?/, "%3F", text );
+ if (sharp) gsub( /#/, "%23", text );
+ gsub( /\[/, "%5B", text );
+ gsub( /\]/, "%5D", text );
+ gsub( / /, "%20", text );
+ gsub( / /, "%09", text );
+ gsub( /\\/, "%5C", text );
+ return text;
+}
- # quick links ("automatic links" in md doc)
- } else if ( match( line, /^<[a-zA-Z]+:\/\/([-\.[:alnum:]]+)(:[0-9]*)?(\/[^>]*)?>/ ) ) {
- len = RLENGTH;
- href = HTML( substr( line, 2, len - 2) );
- return "<a href=\"" href "\">" href "</a>" inline( substr( line, len + 1) );
-
- # quick link email
- } else if ( match( line, /^<[a-zA-Z0-9.!#$%&'\''*+\/=?^_`{|}~-]+@[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*>/ ) ) {
- len = RLENGTH;
- href = HTML( substr( line, 2, len - 2) );
- return "<a href=\"mailto:" href "\">" href "</a>" inline( substr( line, len + 1) );
-
- # inline links
- } else if ( match(line, /^\[([^]]+)\]\(([^"\)]+)([[:space:]]+"([^"]+)")?\)/) ) {
- len = RLENGTH;
- text = gensub(/^\[([^]]+)\]\(([^"\)]+)([[:space:]]+"([^"]+)")?\)/, "\\1", 1, substr(line, 1, len) );
- href = gensub(/^\[([^]]+)\]\(([^"\)]+)([[:space:]]+"([^"]+)")?\)/, "\\2", 1, substr(line, 1, len) );
- title = gensub(/^\[([^]]+)\]\(([^"\)]+)([[:space:]]+"([^"]+)")?\)/, "\\4", 1, substr(line, 1, len) );
- if ( title ) {
- return "<a href=\"" HTML(href) "\" title=\"" HTML(title) "\">" inline( text ) "</a>" inline( substr( line, len + 1) );
- } else {
- return "<a href=\"" HTML(href) "\">" inline( text ) "</a>" inline( substr( line, len + 1) );
- }
+function inline( line, LOCAL, len, text, code, href, guard, ret ) {
+ ret = "";
+ while (line !~ /^$/) {
+ # omit processing of escaped characters
+ if ( line ~ /^\\./) {
+ ret = ret HTML(substr(line, 2, 1)); line = substr(line, 3);
+ continue;
+
+ # hard brakes
+ } else if ( match(line, /^ \n/) ) {
+ ret = ret "<br>\n"; line = substr(line, RLENGTH + 1);
+ continue;
+
+ # ``code spans``
+ } else if ( match( line, /^`+/) ) {
+ len = RLENGTH
+ guard = substr( line, 1, len )
+ if ( match(line, guard ".*" guard) ) {
+ code = substr( line, len + 1, match( substr(line, len + 1), guard ) - 1)
+ len = 2 * length(guard) + length(code)
+ # strip single surrounding white spaces
+ gsub( /^ | $/, "", code)
+ # escape HTML within code span
+ gsub( /&/, "\\&", code ); gsub( /</, "\\<", code ); gsub( />/, "\\>", code );
+ ret = ret "<code>" code "</code>"; line = substr( line, len + 1 );
+ continue;
+ }
- # reference style links
- } else if ( match(line, /^\[([^]]+)\] ?\[([^]]*)\]/ ) ) {
- len = RLENGTH;
- text = gensub(/^\[([^\n]+)\] ?\[([^\n]*)\].*/, "\\1", 1, substr(line, 1, len) );
- id = gensub(/^\[([^\n]+)\] ?\[([^\n]*)\].*/, "\\2", 1, substr(line, 1, len) );
- if ( ! id ) id = text;
- if ( rl_href[id] && rl_title[id] ) {
- return "<a href=\"" HTML(rl_href[id]) "\" title=\"" HTML(rl_title[id]) "\">" inline(text) "</a>" inline( substr( line, len + 1) );
- } else if ( rl_href[id] ) {
- return "<a href=\"" HTML(rl_href[id]) "\">" inline(text) "</a>" inline( substr( line, len + 1) );
- } else {
- return "" HTML(substr(line, 1, len)) inline( substr(line, len + 1) );
- }
+ # Macros
+ } else if ( match( line, /^<<([^>]|>[^>])+>>/ ) ) {
+ len = RLENGTH;
+ ret = ret "<code class=\"macro\">" HTML( substr( line, 3, len - 4 ) ) "</code>"; line = substr(line, len + 1);
+ continue;
+
+ # Wiki style links
+ } else if ( match( line, /^\[\[([^]|]+)(\|[^]]+)?\]\]/) ) {
+ len = RLENGTH; href = text = substr(line, 1, len);
+ sub(/^\[\[/, "", href); sub(/(\|([^]]+))?\]\].*$/, "", href);
+ sub(/^\[\[([^]|]+)/, "", text); sub(/\]\].*$/, "", text); sub(/^\|/, "", text);
+ # sub(/^\[\[([^]|]+)(\|([^]]+))?\]\]/, "\\1", href );
+ # sub(/^\[\[([^]|]+)(\|([^]]+))?\]\]/, "\\3", text );
+ if ( ! text ) text = href;
+ ret = ret "<a href=\"" HTML(href) "\">" HTML(text) "</a>"; line = substr( line, len + 1);
+ continue;
+
+ # quick links ("automatic links" in md doc)
+ } else if ( match( line, /^<[a-zA-Z]+:\/\/([-\.[:alnum:]]+)(:[0-9]*)?(\/[^>]*)?>/ ) ) {
+ len = RLENGTH;
+ href = HTML( substr( line, 2, len - 2) );
+ ret = ret "<a href=\"" href "\">" href "</a>"; line = substr( line, len + 1);
+ continue;
+
+ # quick link email
+ # } else if ( match( line, /^<[a-zA-Z0-9.!#$%&'\''*+\/=?^_`{|}~-]+@[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*>/ ) ) {
+ } else if ( match( line, /^<[a-zA-Z0-9.!#$%&'\''*+\/=?^_`{|}~-]+@([a-zA-Z0-9]\.[a-zA-Z0-9]|[a-zA-Z0-9-])+>/ ) ) {
+ len = RLENGTH;
+ href = HTML( substr( line, 2, len - 2) );
+ ret = ret "<a href=\"mailto:" href "\">" href "</a>"; line = substr( line, len + 1);
+ continue;
+
+ # Verbatim inline HTML
+ } else if ( AllowHTML && match( line, /^(<!--([^-]|-[^-]|--[^>])*-->|<\?([^\?]|\?[^>])*\?>|<![A-Z][^>]*>|<!\[CDATA\[([^\]]|\][^\]]|\]\][^>])*\]\]>|<\/[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;
+ ret = ret substr( line, 1, len); line =substr(line, len + 1);
+ continue;
+
+ # inline links
+ } else if ( match(line, "^" lii "\\([\n\t ]*" lid "([\n\t ]+" lit ")?[\n\t ]*\\)") ) {
+ len = RLENGTH;
+ text = href = title = substr( line, 1, len);
+ sub("^\\[", "", text); sub("\\]\\([\n\t ]*" lid "([\n\t ]+" lit ")?[\n\t ]*\\)$", "", text);
+ sub("^" lii "\\([\n\t ]*", "", href); sub("([\n\t ]+" lit ")?[\n\t ]*\\)$", "", href);
+ sub("^" lii "\\([\n\t ]*" lid, "", title); sub("[\n\t ]*\\)$", "", title); sub("^[\n\t ]+", "", title);
+
+ if ( match(href, /^<.*>$/) ) { sub(/^</, "", href); sub(/>$/, "", href); }
+ if ( match(title, /^".*"$/) ) { sub(/^"/, "", title); sub(/"$/, "", title); }
+ else if ( match(title, /^'.*'$/) ) { sub(/^'/, "", title); sub(/'$/, "", title); }
+ else if ( match(title, /^\(.*\)$/) ) { sub(/^\(/, "", title); sub(/\)$/, "", title); }
+
+ gsub(/\\/, "", href); gsub(/\\/, "", title); gsub(/[\n\t]+/, " ", title);
+
+ ret = ret "<a href=\"" HTML(href) "\"" (title?" title=\"" HTML(title) "\"":"") ">" \
+ inline( text ) "</a>";
+ line = substr( line, len + 1);
+ continue;
+
+ # reference style links
+ } else if ( match(line, /^\[([^]]+)\] ?\[([^]]*)\]/ ) ) {
+ len = RLENGTH; text = id = substr(line, 1, len);
+ sub(/\n.*$/, "", text); sub(/^\[/, "", text); sub(/\] ?\[([^\n]*)\].*$/, "", text);
+ sub(/\n.*$/, "", id); sub(/^\[([^]]+)\] ?\[/, "", id); sub(/\].*$/, "", id);
+ # text = gensub(/^\[([^\n]+)\] ?\[([^\n]*)\].*/, "\\1", 1, text );
+ # id = gensub(/^\[([^\n]+)\] ?\[([^\n]*)\].*/, "\\2", 1, id );
+ if ( ! id ) id = text;
+
+ if ( rl_href[id] && rl_title[id] ) {
+ ret = ret "<a href=\"" HTML(rl_href[id]) "\" title=\"" HTML(rl_title[id]) "\">" inline(text) "</a>";
+ line = substr( line, len + 1);
+ continue;
+
+ } else if ( rl_href[id] ) {
+ ret = ret "<a href=\"" HTML(rl_href[id]) "\">" inline(text) "</a>"; line = substr( line, len + 1);
+ continue;
+
+ } else {
+ ret = ret "" HTML(substr(line, 1, len)); line = substr(line, len + 1);
+ continue;
+ }
- # inline images
- } else if ( match(line, /^!\[([^]]+)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)/) ) {
- len = RLENGTH;
- text = gensub(/^!\[([^]]+)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)/, "\\1", "g", substr(line, 1, len) );
- href = gensub(/^!\[([^]]+)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)/, "\\2", "g", substr(line, 1, len) );
- title = gensub(/^!\[([^]]+)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)/, "\\4", "g", substr(line, 1, len) );
- if ( title ) {
- return "<img src=\"" HTML(href) "\" alt=\"" HTML(text) "\" title=\"" HTML(title) "\" />" inline( substr( line, len + 1) );
- } else {
- return "<img src=\"" HTML(href) "\" alt=\"" HTML(text) "\" />" inline( substr( line, len + 1) );
- }
+ # inline images
+ } else if ( match(line, "^!" lix "\\([\n\t ]*" lid "([\n\t ]+" lit ")?[\n\t ]*\\)(\\{[a-zA-Z \t-]*\\})?") ) {
+ len = RLENGTH; text = href = title = attrib = substr( line, 1, len);
+
+ sub("^!\\[", "", text);
+ sub("\\]\\([\n\t ]*" lid "([\n\t ]+" lit ")?[\n\t ]*\\)(\\{[a-zA-Z \t-]*\\})?$", "", text);
+
+ sub("^!" lix "\\([\n\t ]*", "", href);
+ sub("([\n\t ]+" lit ")?[\n\t ]*\\)(\\{[a-zA-Z \t-]*\\})?$", "", href);
+
+ sub("^!" lix "\\([\n\t ]*" lid, "", title);
+ sub("[\n\t ]*\\)(\\{[a-zA-Z \t-]*\\})?$", "", title);
+ sub("^[\n\t ]+", "", title);
+
+ sub("^!" lix "\\([\n\t ]*" lid "([\n\t ]+" lit ")?[\n\t ]*\\)", "", attrib);
+ sub(/^\{[ \t]*/, "", attrib); sub(/[ \t]*\}$/, "", attrib); gsub(/[ \t]+/, " ", attrib);
+
+ if ( match(href, /^<.*>$/) ) { sub(/^</, "", href); sub(/>$/, "", href); }
+ if ( match(title, /^".*"$/) ) { sub(/^"/, "", title); sub(/"$/, "", title); }
+ else if ( match(title, /^'.*'$/) ) { sub(/^'/, "", title); sub(/'$/, "", title); }
+ else if ( match(title, /^\(.*\)$/) ) { sub(/^\(/, "", title); sub(/\)$/, "", title); }
+
+ gsub(/^[\t ]+$/, "", text); gsub(/\\/, "", href);
+ gsub(/\\/, "", title); gsub(/[\n\t]+/, " ", title);
+
+ ret = ret "<img src=\"" HTML(href) "\" alt=\"" HTML(text?text:title?title:href) "\"" \
+ (title?" title=\"" HTML(title) "\"":"") (attrib?" class=\"" HTML(attrib) "\"":"") \
+ ">";
+ line = substr( line, len + 1);
+ continue;
+
+ # reference style images
+ } else if ( match(line, /^!\[([^]]*)\] ?\[([^]]*)\]/ ) ) {
+ len = RLENGTH; text = id = substr(line, 1, len);
+ sub(/\n.*$/, "", text); sub(/^!\[/, "", text); sub(/\] ?\[([^\n]*)\].*$/, "", text);
+ sub(/\n.*$/, "", id); sub(/^!\[([^]]+)\] ?\[/, "", id); sub(/\].*$/, "", id);
+ # text = gensub(/^!\[([^\n]*)\] ?\[([^\n]*)\].*/, "\\1", 1, substr(line, 1, len) );
+ # id = gensub(/^!\[([^\n]*)\] ?\[([^\n]*)\].*/, "\\2", 1, substr(line, 1, len) );
+ if ( ! id ) id = text;
+ if ( rl_href[id] && rl_title[id] ) {
+ ret = ret "<img src=\"" HTML(rl_href[id]) "\" alt=\"" HTML(text) "\" title=\"" HTML(rl_title[id]) "\">";
+ line = substr( line, len + 1);
+ continue;
+
+ } else if ( rl_href[id] ) {
+ ret = ret "<img src=\"" HTML(rl_href[id]) "\" alt=\"" HTML(text) "\">";
+ line = substr( line, len + 1);
+ continue;
+
+ } else {
+ ret = ret "" HTML(substr(line, 1, len)); line = substr(line, len + 1);
+ continue;
+ }
- # reference style images
- } else if ( match(line, /^!\[([^]]+)\] ?\[([^]]*)\]/ ) ) {
- len = RLENGTH;
- text = gensub(/^!\[([^\n]+)\] ?\[([^\n]*)\].*/, "\\1", 1, substr(line, 1, len) );
- id = gensub(/^!\[([^\n]+)\] ?\[([^\n]*)\].*/, "\\2", 1, substr(line, 1, len) );
- if ( ! id ) id = text;
- if ( rl_href[id] && rl_title[id] ) {
- return "<img src=\"" HTML(rl_href[id]) "\" alt=\"" HTML(text) "\" title=\"" HTML(rl_title[id]) "\" />" inline( substr( line, len + 1) );
- } else if ( rl_href[id] ) {
- return "<img src=\"" HTML(rl_href[id]) "\" alt=\"" HTML(text) "\" />" inline( substr( line, len + 1) );
+ # ~~strikeout~~ (pandoc)
+ } else if ( match(line, /^~~([[:graph:]]|[[:graph:]]([^~]|~[^~])*[[:graph:]])~~/) ) {
+ len = RLENGTH;
+ ret = ret "<del>" inline( substr( line, 3, len - 4 ) ) "</del>"; line = substr( line, len + 1 );
+ continue;
+
+ # ^superscript^ (pandoc)
+ } else if ( match(line, /^\^([^[:space:]^]|\\[ ^])+\^/) ) {
+ len = RLENGTH;
+ ret = ret "<sup>" inline( substr( line, 2, len - 2 ) ) "</sup>"; line = substr( line, len + 1 );
+ continue;
+
+ # ~subscript~ (pandoc)
+ } else if ( match(line, /^~([^[:space:]~]|\\[ ~])+~/) ) {
+ len = RLENGTH;
+ ret = ret "<sub>" inline( substr( line, 2, len - 2 ) ) "</sub>"; line = substr( line, len + 1 );
+ continue;
+
+ # ignore embedded underscores (pandoc, php md)
+ } else if ( match(line, "^[[:alnum:]](__|_)") ) {
+ ret = ret HTML(substr( line, 1, RLENGTH)); line = substr(line, RLENGTH + 1);
+ continue;
+
+ # strong / em matchers use pre match pattern to make processing cheaper
+ # __strong__$
+ } else if ( match(line, "^__(([^_[:space:]]|" ieu ")|([^_[:space:]]|" ieu ")(" nu "|" ieu ")*([^_[:space:]]|" ieu "))__$") ) {
+ len = RLENGTH;
+ ret = ret "<strong>" inline( substr( line, 3, len - 4 ) ) "</strong>"; line = substr( line, len + 1 );
+ continue;
+
+ # __strong__
+ } else if ( match(line, "^__(([^_[:space:]]|" ieu ")|([^_[:space:]]|" ieu ")(" nu "|" ieu ")*([^_[:space:]]|" ieu "))__[[:space:][:punct:]]") ) {
+ len = RLENGTH;
+ ret = ret "<strong>" inline( substr( line, 3, len - 5 ) ) "</strong>"; line = substr( line, len);
+ continue;
+
+ # **strong**
+ } else if ( match(line, "^\\*\\*(([^*[:space:]]|" iea ")|([^*[:space:]]|" iea ")(" na "|" iea ")*([^*[:space:]]|" iea "))\\*\\*") ) {
+ len = RLENGTH;
+ ret = ret "<strong>" inline( substr( line, 3, len - 4 ) ) "</strong>"; line = substr( line, len + 1 );
+ continue;
+
+ # _em_$
+ } else if ( match(line, "^_(([^_[:space:]]|" isu ")|([^_[:space:]]|" isu ")(" nu "|" isu ")*([^_[:space:]]|" isu "))_$") ) {
+ len = RLENGTH;
+ ret = ret "<em>" inline( substr( line, 2, len - 2 ) ) "</em>"; line = substr( line, len + 1 );
+ continue;
+
+ # _em_
+ } else if ( match(line, "^_(([^_[:space:]]|" isu ")|([^_[:space:]]|" isu ")(" nu "|" isu ")*([^_[:space:]]|" isu "))_[[:space:][:punct:]]") ) {
+ len = RLENGTH;
+ ret = ret "<em>" inline( substr( line, 2, len - 3 ) ) "</em>"; line = substr( line, len );
+ continue;
+
+ # *em*
+ } else if ( match(line, "^\\*(([^*[:space:]]|" isa ")|([^*[:space:]]|" isa ")(" na "|" isa ")*([^*[:space:]]|" isa "))\\*") ) {
+ len = RLENGTH;
+ ret = ret "<em>" inline( substr( line, 2, len - 2 ) ) "</em>"; line = substr( line, len + 1 );
+ continue;
+
+ # Literal HTML entities
+ # } else if ( match( line, /^&([a-zA-Z]{2,32}|#[0-9]{1,7}|#[xX][0-9a-fA-F]{1,6});/) ) {
+ # mawk does not support repitition ranges
+ } else if ( match( line, /^&[a-zA-Z][a-zA-Z][a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?;/) ) {
+ len = RLENGTH;
+ ret = ret substr( line, 1, len ); line = substr(line, len + 1);
+ continue;
+ } else if ( match( line, /^&(#[0-9][0-9]?[0-9]?[0-9]?[0-9]?[0-9]?[0-9]?|#[xX][0-9a-fA-F][0-9a-fA-F]?[0-9a-fA-F]?[0-9a-fA-F]?[0-9a-fA-F]?[0-9a-fA-F]?);/) ) {
+ len = RLENGTH;
+ ret = ret substr( line, 1, len ); line = substr(line, len + 1);
+ continue;
+
+ # Arrows
+ } else if ( line ~ /^-->( |$)/) { # ignore multidash-arrow
+ ret = ret "-->"; line = substr(line, 4);
+ continue;
+ } else if ( line ~ /^<-( |$)/) {
+ ret = ret "←"; line = substr(line, 3);
+ continue;
+ } else if ( line ~ /^->( |$)/) {
+ ret = ret "→"; line = substr(line, 3);
+ continue;
+
+ # Escape lone HTML character
+ } else if ( match( line, /^[&<>"']/) ) {
+ ret = ret HTML(substr(line, 1, 1)); line = substr(line, 2);
+ continue;
+
+ # continue walk over string
} else {
- return "" HTML(substr(line, 1, len)) inline( substr(line, len + 1) );
+ ret = ret substr(line, 1, 1); line = substr(line, 2);
+ continue;
}
-
- # ~~strikeout~~ (pandoc)
- } else if ( match(line, /^~~([[:graph:]]|[[:graph:]]([^~]|~[^~])*[[:graph:]])~~/) ) {
- len = RLENGTH;
- return "<del>" inline( substr( line, 3, len - 4 ) ) "</del>" inline( substr( line, len + 1 ) );
-
- # ^superscript^ (pandoc)
- } else if ( match(line, /^\^([^[:space:]^]|\\[ ^])+\^/) ) {
- len = RLENGTH;
- return "<sup>" inline( substr( line, 2, len - 2 ) ) "</sup>" inline( substr( line, len + 1 ) );
-
- # ~subscript~ (pandoc)
- } else if ( match(line, /^~([^[:space:]~]|\\[ ~])+~/) ) {
- len = RLENGTH;
- return "<sub>" inline( substr( line, 2, len - 2 ) ) "</sub>" inline( substr( line, len + 1 ) );
-
- # ignore embedded underscores (pandoc, php md)
- } else if ( match(line, "^[[:alnum:]](__|_)") ) {
- return HTML(substr( line, 1, RLENGTH)) inline( substr(line, RLENGTH + 1) );
-
- # __strong__$
- } else if ( match(line, "^__(([^_[:space:]]|" ieu ")|([^_[:space:]]|" ieu ")(" nu "|" ieu ")*([^_[:space:]]|" ieu "))__$") ) {
- len = RLENGTH;
- return "<strong>" inline( substr( line, 3, len - 4 ) ) "</strong>" inline( substr( line, len + 1 ) );
-
- # __strong__
- } else if ( match(line, "^__(([^_[:space:]]|" ieu ")|([^_[:space:]]|" ieu ")(" nu "|" ieu ")*([^_[:space:]]|" ieu "))__[[:space:][:punct:]]") ) {
- len = RLENGTH;
- return "<strong>" inline( substr( line, 3, len - 5 ) ) "</strong>" inline( substr( line, len) );
-
- # **strong**
- } else if ( match(line, "^\\*\\*(([^\\*[:space:]]|" iea ")|([^\\*[:space:]]|" iea ")(" na "|" iea ")*([^\\*[:space:]]|" iea "))\\*\\*") ) {
- len = RLENGTH;
- return "<strong>" inline( substr( line, 3, len - 4 ) ) "</strong>" inline( substr( line, len + 1 ) );
-
- # _em_$
- } else if ( match(line, "^_(([^_[:space:]]|" isu ")|([^_[:space:]]|" isu ")(" nu "|" isu ")*([^_[:space:]]|" isu "))_$") ) {
- len = RLENGTH;
- return "<em>" inline( substr( line, 2, len - 2 ) ) "</em>" inline( substr( line, len + 1 ) );
-
- # _em_
- } else if ( match(line, "^_(([^_[:space:]]|" isu ")|([^_[:space:]]|" isu ")(" nu "|" isu ")*([^_[:space:]]|" isu "))_[[:space:][:punct:]]") ) {
- len = RLENGTH;
- return "<em>" inline( substr( line, 2, len - 3 ) ) "</em>" inline( substr( line, len ) );
-
- # *em*
- } else if ( match(line, "^\\*(([^\\*[:space:]]|" isa ")|([^\\*[:space:]]|" isa ")(" na "|" isa ")*([^\\*[:space:]]|" isa "))\\*") ) {
- len = RLENGTH;
- return "<em>" inline( substr( line, 2, len - 2 ) ) "</em>" 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-Z][^>]*>|<!\[CDATA\[([^\]]|\][^\]]|\]\][^>])*\]\]>|<\/[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;
- return substr( line, 1, len ) inline(substr(line, len + 1));
-
- # Escape lone HTML character
- } else if ( match( line, /^[&<>"']/) ) {
- return HTML(substr(line, 1, 1)) inline(substr(line, 2));
-
- # continue walk over string
- } else {
- return substr(line, 1, 1) inline( substr(line, 2) );
}
+ return ret;
}
-function _block( block, LOCAL, st, len, hlvl, htxt, guard, code, indent, attrib ) {
- gsub( /^\n+|\n+$/, "", block );
-
- if ( block == "" ) {
- return "";
-
- # HTML #2 #3 #4 $5
- } else if ( AllowHTML && match( block, /(^|\n) ? ? ?(<!--([^-]|-[^-]|--[^>])*(-->|$)|<\?([^\?]|\?[^>])*(\?>|$)|<![A-Z][^>]*(>|$)|<!\[CDATA\[([^\]]|\][^\]]|\]\][^>])*(\]\]>|$))/) ) {
- len = RLENGTH; st = RSTART;
- return _block(substr(block, 1, st - 1)) substr(block, st, len) _block(substr(block, st + len));
-
- # HTML #6
- } else if ( AllowHTML && match( tolower(block), /(^|\n) ? ? ?<\/?(address|article|aside|base|basefont|blockquote|body|caption|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption|figure|footer|form|frame|frameset|h[123456]|head|header|hr|html|iframe|legend|li|link|main|menu|menuitem|nav|noframes|ol|optgroup|option|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr|track|ul)([[:space:]\n>]|\/>)([^\n]|\n[ \t]*[^\n])*(\n[[:space:]]*\n|$)/) ) {
- len = RLENGTH; st = RSTART;
- return _block(substr(block, 1, st - 1)) substr(block, st, len) _block(substr(block, st + len));
-
- # HTML #1
- } else if ( AllowHTML && match( tolower(block), /(^|\n) ? ? ?<(script|pre|style)([[:space:]\n>]).*(<\/script>|<\/pre>|<\/style>|$)/) ) {
- len = RLENGTH; st = RSTART;
- match( tolower(substr(block, st, len)), /(<\/script>|<\/pre>|<\/style>)/);
- len = RSTART + RLENGTH;
- return _block(substr(block, 1, st - 1)) substr(block, st, len) _block(substr(block, st + len));
-
- # HTML #7
- } else if ( AllowHTML && match( block, /^ ? ? ?(<\/[A-Za-z][A-Za-z0-9-]*[[:space:]]*>|<[A-Za-z][A-Za-z0-9-]*([[:space:]]+[A-Za-z_:][A-Za-z0-9_\.:-]*([[:space:]]*=[[:space:]]*([[:space:]"'=<>`]+|"[^"]*"|'[^']*'))?)*[[:space:]]*\/?>)([[:space:]]*\n)([^\n]|\n[ \t]*[^\n])*(\n[[:space:]]*\n|$)/) ) {
- len = RLENGTH; st = RSTART;
- return substr(block, st, len) _block(substr(block, st + len));
-
- # Metadata (custom, block starting with %something)
- # Metadata is ignored but can be interpreted externally
- } else if ( match(block, /^%[a-zA-Z]+([[:space:]][^\n]*)?(\n|$)(%[a-zA-Z]+([[:space:]][^\n]*)?(\n|$)|%([[:space:]][^\n]*)?(\n|$)|[ \t]+[^\n[:space:]][^\n]*(\n|$))*/) ) {
- len = RLENGTH; st = RSTART;
- return _block( substr( block, len + 1) );
-
- # Blockquote (leading >)
- } else if ( match( block, /^> /) ) {
- match( block, /(^|\n)[[:space:]]*(\n|$)/ ) || match(block, /$/);
- len = RLENGTH; st = RSTART;
- return "<blockquote>\n" _block( gensub( /(^|\n)> /, "\n", "g", substr(block, 1, st - 1) ) ) "</blockquote>\n\n" \
- _block( substr(block, st + len) );
-
- # Pipe Tables (pandoc / php md / gfm )
- } else if ( match(block, "^((\\|)?([^\n]+\\|)+[^\n]+(\\|)?)\n" \
- "((\\|)?:?(-+:?[\\|+])+:?-+:?(\\|)?)\n" \
- "((\\|)?([^\n]+\\|)+[^\n]+(\\|)?(\n|$))+" ) ) {
- len = RLENGTH; st = RSTART;
- #initialize empty arrays
- split("", talign); split("", tarray);
- cols = 0; cnt=0; ttext = "";
-
- # table header and alignment
- split( gensub( /(^\||\|$)/, "", "g", \
- gensub( /(^|[^\\])\\\|/, "\\1\\|", "g", \
- substr(block, 1, match(block, /(\n|$)/)) \
- )), tarray, /\|/);
- block = substr(block, match(block, /(\n|$)/) + 1 );
- cols = split( \
- gensub( /(^\||\|$)/, "", "g", \
- substr(block, 1, match(block, /(\n|$)/)) \
- ), talign, /[+\|]/);
- block = substr(block, match(block, /(\n|$)/) + 1 );
-
- for( cnt = 1; cnt < cols; cnt++ ) {
- if (match(talign[cnt], /:-+:/)) talign[cnt]="center";
- else if (match(talign[cnt], /-+:/)) talign[cnt]="right";
- else if (match(talign[cnt], /:-+/)) talign[cnt]="left";
- else talign[cnt]="";
- }
+function headline( hlvl, htxt, attrib, LOCAL, sec, n, HL) {
+ # match(hstack, /([0-9]+( [0-9]+){5})$/); split( substr(hstack, RSTART), HL);
+ match(hstack, /([0-9]+( [0-9]+)( [0-9]+)( [0-9]+)( [0-9]+)( [0-9]+))$/); split( substr(hstack, RSTART), HL);
- ttext = "<thead>\n<tr>"
- for (cnt = 1; cnt < cols; cnt++)
- ttext = ttext "<th align=\"" talign[cnt] "\">" inline(tarray[cnt]) "</th>"
- ttext = ttext "</tr>\n</thead><tbody>\n"
+ for ( n = hlvl; n <= 6; n++ ) { sec = sec (HL[n]?"</section>":""); }
+ HL[hlvl]++; for ( n = hlvl + 1; n <= 6; n++) { HL[n] = 0;}
- while ( match(block, "^((\\|)?([^\n]+\\|)+[^\n]+(\\|)?(\n|$))+" ) ){
- split( gensub( /(^\||\|$)/, "", "g", \
- gensub( /(^|[^\\])\\\|/, "\\1\\|", "g", \
- substr(block, 1, match(block, /(\n|$)/)) \
- )), tarray, /\|/);
- block = substr(block, match(block, /(\n|$)/) + 1 );
+ hid = ""; for ( n = 2; n <= blvl; n++) { hid = hid BL[n] "/"; }
+ hid = hid HL[1]; for ( n = 2; n <= hlvl; n++) { hid = hid "." HL[n] ; }
+ hid = hid ":" URL(htxt, 1);
- ttext = ttext "<tr>"
- for (cnt = 1; cnt < cols; cnt++)
- ttext = ttext "<td align=\"" talign[cnt] "\">" inline(tarray[cnt]) "</td>"
- ttext = ttext "</tr>\n"
- }
- return "<table>" ttext "</tbody></table>\n" _block( substr(block, len + 1) );
-
- # Grid Tables (pandoc)
- } else if ( match(block, "^\\+(-+\\+)+\n" \
- "(\\|([^\n]+\\|)+\n)+" \
- "\\+(:?=+:?\\+)+\n" \
- "((\\|([^\n]+\\|)+\n)+" \
- "\\+(-+\\+)+(\n|$))+" \
- ) ) {
- len = RLENGTH; st = RSTART;
- #initialize empty arrays
- split("", talign); split("", tarray); split("", tread);
- cols = 0; cnt=0; ttext = "";
-
- # table header and alignment
- block = substr(block, match(block, /(\n|$)/) + 1 );
- while ( match(block, "^\\|([^\n]+\\|)+\n") ) {
- cols = split( gensub( /(^\||\|$)/, "", "g", \
- gensub( /(^|[^\\])\\\|/, "\\1\\|", "g", \
- substr(block, 1, match(block, /(\n|$)/)) \
- )), tread, /\|/);
+ # sub(/([0-9]+( [0-9]+){5})$/, "", hstack);
+ sub(/([0-9]+( [0-9]+)( [0-9]+)( [0-9]+)( [0-9]+)( [0-9]+))$/, "", hstack);
+ hstack = hstack HL[1] " " HL[2] " " HL[3] " " HL[4] " " HL[5] " " HL[6];
+
+ return sec "<section class=\"" (attrib ? "h" hlvl " " attrib : "h" hlvl) "\" id=\"" hid "\">" \
+ "<h" hlvl (attrib ? " class=\"" attrib "\"" : "") ">" inline( htxt ) \
+ "<a class=\"anchor\" href=\"#" hid "\"></a>" \
+ "</h" hlvl ">\n";
+}
+
+# Nested Block, resets heading counters
+function _nblock( block, LOCAL, sec, n ) {
+ hstack = hstack " 0 0 0 0 0 0";
+
+ # Block Level
+ blvl++; BL[blvl]++;
+ for ( n = blvl + 1; n in BL; n++) { delete BL[n]; }
+
+ block = _block( block );
+ match(hstack, /([0-9]+( [0-9]+)( [0-9]+)?( [0-9]+)?( [0-9]+)?( [0-9]+)?)$/); split( substr(hstack, RSTART), HL);
+ sec = ""; for ( n = 1; n <= 6; n++ ) { sec = sec (HL[n]?"</section>":""); }
+
+ sub("( +[0-9]+)( +[0-9]+)?( +[0-9]+)?( +[0-9]+)?( +[0-9]+)?( +[0-9]+)? *$", "", hstack); blvl--;
+ return block sec;
+}
+
+function _block( block, LOCAL, st, len, text, title, attrib, href, guard, code, indent, list, tmp, ret) {
+ ret = "";
+ while ( block != "" ) {
+ gsub( "(^\n+|\n+$)", "", block );
+
+ # HTML #2 #3 #4 $5
+ if ( AllowHTML && match( block, /(^|\n) ? ? ?(<!--([^-]|-[^-]|--[^>])*(-->|$)|<\?([^\?]|\?[^>])*(\?>|$)|<![A-Z][^>]*(>|$)|<!\[CDATA\[([^\]]|\][^\]]|\]\][^>])*(\]\]>|$))/) ) {
+ len = RLENGTH; st = RSTART;
+ ret = ret _block(substr(block, 1, st - 1)) substr(block, st, len); block = substr(block, st + len);
+ continue;
+
+ # HTML #6 (part1)
+ } else if ( AllowHTML && match( tolower(block), /(^|\n) ? ? ?<\/?(address|article|aside|base|basefont|blockquote|body|caption|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption|figure|footer|form|frame|frameset)([[:space:]\n>]|\/>)([^\n]|\n[ \t]*[^\n])*(\n[[:space:]]*\n|$)/) ) {
+ len = RLENGTH; st = RSTART;
+ ret = ret _block(substr(block, 1, st - 1)) substr(block, st, len); block = substr(block, st + len);
+ continue;
+
+ # HTML #6 (part2)
+ } else if ( AllowHTML && match( tolower(block), /(^|\n) ? ? ?<\/?(h[123456]|head|header|hr|html|iframe|legend|li|link|main|menu|menuitem|nav|noframes|ol|optgroup|option|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr|track|ul)([[:space:]\n>]|\/>)([^\n]|\n[ \t]*[^\n])*(\n[[:space:]]*\n|$)/) ) {
+ len = RLENGTH; st = RSTART;
+ ret = ret _block(substr(block, 1, st - 1)) substr(block, st, len); block = substr(block, st + len);
+ continue;
+
+ # HTML #1
+ } else if ( AllowHTML && match( tolower(block), /(^|\n) ? ? ?<(script|pre|style)([[:space:]\n>]).*(<\/script>|<\/pre>|<\/style>|$)/) ) {
+ len = RLENGTH; st = RSTART;
+ match( tolower(substr(block, st, len)), /(<\/script>|<\/pre>|<\/style>)/);
+ len = RSTART + RLENGTH;
+ ret = ret _block(substr(block, 1, st - 1)) substr(block, st, len); block = substr(block, st + len);
+ continue;
+
+ # HTML #7
+ } else if ( AllowHTML && match( block, /^ ? ? ?(<\/[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:]]*\/?>)([[:space:]]*\n)([^\n]|\n[ \t]*[^\n])*(\n[[:space:]]*\n|$)/) ) {
+ len = RLENGTH; st = RSTART;
+ ret = ret substr(block, st, len); block = substr(block, st + len);
+ continue;
+
+ # Metadata (custom, block starting with %something)
+ # Metadata is ignored but can be interpreted externally
+ } else if ( match(block, /^%[a-zA-Z-]+([[:space:]][^\n]*)?(\n|$)(%[a-zA-Z-]+([[:space:]][^\n]*)?(\n|$)|%([[:space:]][^\n]*)?(\n|$)|[ \t]+[^\n[:space:]][^\n]*(\n|$))*/) ) {
+ len = RLENGTH; st = RSTART;
+ block = substr( block, len + 1);
+ continue;
+
+ # Blockquote (leading >)
+ } else if ( match( block, /^> /) ) {
+ match( block, /(^|\n)[[:space:]]*(\n|$)/ ) || match(block, /$/);
+ len = RLENGTH; st = RSTART;
+ text = substr(block, 1, st - 1); gsub( /(^|\n)> /, "\n", text );
+ text = _nblock( text ); gsub( /^\n|\n$/, "", text )
+ ret = ret "<blockquote>" text "</blockquote>\n\n"; block = substr(block, st + len);
+ continue;
+
+ # Pipe Tables (pandoc / php md / gfm )
+ } else if ( match(block, "^((\\|)?([^\n]+\\|)+[^\n]+(\\|)?)\n" \
+ "((\\|)?(:?-+:?[\\|+])+:?-+:?(\\|)?)\n" \
+ "((\\|)?([^\n]+\\|)+[^\n]+(\\|)?(\n|$))+" ) ) {
+ len = RLENGTH; st = RSTART;
+ #initialize empty arrays
+ split("", talign); split("", tarray);
+ cols = 0; cnt=0; ttext = "";
+
+ # table header and alignment
+ tmp = substr(block, 1, match(block, /(\n|$)/));
+ gsub( /(^|[^\\])\\\|/, "\\1\\|", tmp );
+ gsub( /(^\||\|$)/, "", tmp)
+ split( tmp, tarray, /\|/);
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+ tmp = substr(block, 1, match(block, /(\n|$)/));
+ gsub( /(^\||\|$)/, "", tmp );
+ cols = split( tmp , talign, /[+\|]/);
block = substr(block, match(block, /(\n|$)/) + 1 );
- for (cnt = 1; cnt < cols; cnt++)
- tarray[cnt] = tarray[cnt] "\n" tread[cnt];
- }
- cols = split( \
- gensub( /(^\+|\+$)/, "", "g", \
- substr(block, 1, match(block, /(\n|$)/)) \
- ), talign, /\+/);
- block = substr(block, match(block, /(\n|$)/) + 1 );
-
- for (cnt = 1; cnt < cols; cnt++) {
- if (match(talign[cnt], /:=+:/)) talign[cnt]="center";
- else if (match(talign[cnt], /=+:/)) talign[cnt]="right";
- else if (match(talign[cnt], /:=+/ )) talign[cnt]="left";
- else talign[cnt]="";
- }
+ for( cnt = 1; cnt < cols; cnt++ ) {
+ if (match(talign[cnt], /:-+:/)) talign[cnt]="center";
+ else if (match(talign[cnt], /-+:/)) talign[cnt]="right";
+ else if (match(talign[cnt], /:-+/)) talign[cnt]="left";
+ else talign[cnt]="";
+ }
- ttext = "<thead>\n<tr>"
- for (cnt = 1; cnt < cols; cnt++)
- ttext = ttext "<th align=\"" talign[cnt] "\">" _block(tarray[cnt]) "</th>"
- ttext = ttext "</tr>\n</thead><tbody>\n"
-
- while ( match(block, /^((\|([^\n]+\|)+\n)+\+(-+\+)+(\n|$))+/ ) ){
- split("", tarray);
- while ( match(block, /^\|([^\n]+\|)+\n/) ) {
- split( gensub( /(^\||\|$)/, "", "g", \
- gensub( /(^|[^\\])\\\|/, "\\1\\|", "g", \
- substr(block, 1, match(block, /(\n|$)/)) \
- )), tread, /\|/);
+ ttext = "<thead>\n<tr>"
+ for (cnt = 1; cnt < cols; cnt++)
+ ttext = ttext "<th align=\"" talign[cnt] "\">" inline(tarray[cnt]) "</th>"
+ ttext = ttext "</tr>\n</thead><tbody>\n"
+
+ while ( match(block, "^((\\|)?([^\n]+\\|)+[^\n]+(\\|)?(\n|$))+" ) ){
+ tmp = substr(block, 1, match(block, /(\n|$)/));
+ gsub( /(^|[^\\])\\\|/, "\\1\\|", tmp );
+ gsub( /(^\||\|$)/, "", tmp );
+ split( tmp, tarray, /\|/);
block = substr(block, match(block, /(\n|$)/) + 1 );
+
+ ttext = ttext "<tr>"
for (cnt = 1; cnt < cols; cnt++)
- tarray[cnt] = tarray[cnt] "\n" tread[cnt];
+ ttext = ttext "<td align=\"" talign[cnt] "\">" inline(tarray[cnt]) "</td>"
+ ttext = ttext "</tr>\n"
+ }
+ ret = ret "<table>" ttext "</tbody></table>\n";
+ continue;
+
+ # Grid Tables (pandoc)
+ # (with, and without header)
+ } else if ( match( block, "^\\+(-+\\+)+\n" \
+ "(\\|([^\n]+\\|)+\n)+" \
+ "(\\+(:?=+:?\\+)+)\n" \
+ "((\\|([^\n]+\\|)+\n)+" \
+ "\\+(-+\\+)+(\n|$))+" \
+ ) || \
+ match( block, "^(\\+(:?-+:?\\+)+)\n" \
+ "((\\|([^\n]+\\|)+\n)+" \
+ "\\+(-+\\+)+(\n|$))+" \
+ ) ) {
+ len = RLENGTH; st = RSTART;
+ #initialize empty arrays
+ split("", talign); split("", tarray); split("", tread);
+ cols = 0; cnt=0; ttext = "";
+
+ # Column Count
+ tmp = block; sub( "(\n.*)*$", "", tmp);
+ cols = split( tmp, tread, /\+/) - 2;
+ # debug(" Cols: " gensub( "^(\\+(:?-+:?\\+)+)(\n.*)*$", "\\1", 1, block ));
+
+ # table alignment
+ match(block, "((:?=+:?\\+|(:-+|-+:|:-+:)\\+)+)");
+ split( substr(block, RSTART, RLENGTH) , talign, /\+/ );
+ # split( gensub( "^(.*\n)?\\+((:?=+:?\\+|(:-+|-+:|:-+:)\\+)+)(\n.*)$", "\\2", "g", block ), talign, /\+/ );
+ # debug("Align: " gensub( "^(.*\n)?\\+((:?=+:?\\+|(:-+|-+:|:-+:)\\+)+)(\n.*)$", "\\2", "g", block ));
+
+ for (cnt = 1; cnt <= cols; cnt++) {
+ if (match(talign[cnt], /:(-+|=+):/)) talign[cnt]="center";
+ else if (match(talign[cnt], /(-+|=+):/)) talign[cnt]="right";
+ else if (match(talign[cnt], /:(-+|=+)/ )) talign[cnt]="left";
+ else talign[cnt]="";
}
+
+ if ( match(block, "^\\+(-+\\+)+\n" \
+ "(\\|([^\n]+\\|)+\n)+" \
+ "\\+(:?=+:?\\+)+\n" \
+ "((\\|([^\n]+\\|)+\n)+" \
+ "\\+(-+\\+)+(\n|$))+" \
+ ) ) {
+ # table header
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+ while ( match(block, "^\\|([^\n]+\\|)+\n") ) {
+ tmp = substr(block, 1, match(block, /(\n|$)/));
+ gsub( /\\\\/, "\\\", tmp); gsub(/\\\|/, "\\|", tmp);
+ gsub( /(^\||\|$)/, "", tmp );
+ split(tmp, tread, /\|/);
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+ for (cnt = 1; cnt <= cols; cnt++)
+ tarray[cnt] = tarray[cnt] "\n" tread[cnt];
+ }
+
+ ttext = "<thead>\n<tr>"
+ for (cnt = 1; cnt <= cols; cnt++)
+ ttext = ttext "<th align=\"" talign[cnt] "\">" _nblock(tarray[cnt]) "</th>"
+ ttext = ttext "</tr>\n</thead>"
+ }
+
+ # table body
block = substr(block, match(block, /(\n|$)/) + 1 );
+ ttext = ttext "<tbody>\n"
+
+ while ( match(block, /^((\|([^\n]+\|)+\n)+\+(-+\+)+(\n|$))+/ ) ){
+ split("", tarray);
+ while ( match(block, /^\|([^\n]+\|)+\n/) ) {
+ tmp = substr(block, 1, match(block, /(\n|$)/));
+ gsub( /\\\\/, "\\\", tmp); gsub(/\\\|/, "\\|", tmp);
+ gsub( /(^\||\|$)/, "", tmp);
+ split( tmp, tread, /\|/);
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+ for (cnt = 1; cnt <= cols; cnt++)
+ tarray[cnt] = tarray[cnt] "\n" tread[cnt];
+ }
+ block = substr(block, match(block, /(\n|$)/) + 1 );
- ttext = ttext "<tr>"
- for (cnt = 1; cnt < cols; cnt++)
- ttext = ttext "<td align=\"" talign[cnt] "\">" _block(tarray[cnt]) "</td>"
- ttext = ttext "</tr>\n"
- }
- return "<table>" ttext "</tbody></table>\n" _block( substr(block, len + 1) );
-
- # Line Blocks (pandoc)
- } else if ( match(block, /^\| [^\n]*(\n|$)(\| [^\n]*(\n|$)|[ \t]+[^\n[:space:]][^\n]*(\n|$))*/) ) {
- len = RLENGTH; st = RSTART;
- code = substr(block, 1, len);
- gsub(/\n[[:space:]]+/, " ", code);
- gsub(/\n\| /, "\n", code);
- gsub(/^\| |\n$/, "", code);
- return "<div class=\"line-block\">" gensub(/\n/, "<br />\n", "g", inline( code )) "</div>\n" \
- _block( substr( block, len + 1) );
-
- # Indented Code Block
- } else if ( match(block, /^( |\t)[^\n]+(\n|$)(( |\t)[^\n]+(\n|$)|[ \t]*(\n|$))*/) ) {
- len = RLENGTH; st = RSTART;
- code = substr(block, 1, len);
- gsub(/(^|\n)( |\t)/, "\n", code);
- gsub(/^\n|\n+$/, "", code);
- return "<pre><code>" HTML( code ) "</code></pre>\n" \
- _block( substr( block, len + 1 ) );
-
- # Fenced Divs (pandoc, custom)
- } else if ( match( block, /^(:::+)/ ) ) {
- guard = substr( block, 1, RLENGTH );
- code = gensub(/^[^\n]+\n/, "", 1, block);
- attrib = gensub(/^:::+[ \t]*\{?[ \t]*([^\}\n]*)\}?[ \t]*\n.*$/, "\\1", 1, block);
- gsub(/[^a-zA-Z0-9_-]+/, " ", attrib);
- gsub(/(^ | $)/, "", attrib);
- if ( match(code, "(^|\n)" guard "+(\n|$)" ) ) {
+ ttext = ttext "<tr>"
+ for (cnt = 1; cnt <= cols; cnt++)
+ ttext = ttext "<td align=\"" talign[cnt] "\">" _nblock(tarray[cnt]) "</td>"
+ ttext = ttext "</tr>\n"
+ }
+ return ret "<table>" ttext "</tbody></table>\n" _nblock(block);
+
+ # Line Blocks (pandoc)
+ } else if ( match(block, /^\| [^\n]*(\n|$)(\| [^\n]*(\n|$)|[ \t]+[^\n[:space:]][^\n]*(\n|$))*/) ) {
len = RLENGTH; st = RSTART;
- return "<div class=\"" attrib "\">" _block( substr(code, 1, st - 1) ) "</div>\n" \
- _block( substr( code, st + len ) );
- } else {
- match( block, /(^|\n)[[:space:]]*(\n|$)/ ) || match( block, /$/ );
+
+ text = substr(block, 1, len); gsub(/\n[[:space:]]+/, " ", text);
+ gsub(/\n\| /, "\n", text); gsub(/^\| |\n$/, "", text);
+ text = inline(text); gsub(/\n/, "<br>\n", text);
+
+ ret = ret "<div class=\"line-block\">" text "</div>\n"; block = substr( block, len + 1);
+ continue;
+
+ # Indented Code Block
+ } else if ( match(block, /^(( |\t)[^\n]*[^\n\t ][^\n]*(\n|$))(( |\t)[^\n]*(\n|$)|[\t ]*(\n|$))*/) ) {
len = RLENGTH; st = RSTART;
- return "<p>" inline( substr(block, 1, st - 1) ) "</p>\n" \
- _block( substr(block, st + len) );
- }
- # Fenced Code Block (pandoc)
- } else if ( match( block, /^(~~~+|```+)/ ) ) {
- guard = substr( block, 1, RLENGTH );
- code = gensub(/^[^\n]+\n/, "", 1, block);
- attrib = gensub(/^(~~~+|```+)[ \t]*\{?[ \t]*([^\}\n]*)\}?[ \t]*\n.*$/, "\\2", 1, block);
- gsub(/[^a-zA-Z0-9_-]+/, " ", attrib);
- gsub(/(^ | $)/, "", attrib);
- if ( match(code, "(^|\n)" guard "+(\n|$)" ) ) {
+ code = substr(block, 1, len);
+ gsub(/(^|\n)( |\t)/, "\n", code);
+ gsub(/^\n|\n+$/, "", code);
+ ret = ret "<pre><code>" HTML( code ) "</code></pre>\n"; block = substr( block, len + 1 );
+ continue;
+
+ # Fenced Divs (pandoc, custom)
+ } else if ( match( block, /^(:::+)/ ) ) {
+ guard = substr( block, 1, RLENGTH ); attrib = code = block;
+ sub(/^[^\n]+\n/, "", code);
+ sub(/^:::+[ \t]*\{?[ \t]*/, "", attrib); sub(/\}?[ \t]*\n.*$/, "", attrib);
+ # attrib = gensub(/^:::+[ \t]*\{?[ \t]*([^\}\n]*)\}?[ \t]*\n.*$/, "\\1", 1, attrib);
+ gsub(/[^a-zA-Z0-9_-]+/, " ", attrib);
+ gsub(/(^ | $)/, "", attrib);
+ if ( match(code, "(^|\n)" guard "+(\n|$)" ) && attrib ) {
+ len = RLENGTH; st = RSTART;
+ ret = ret "<div class=\"" attrib "\">" _nblock( substr(code, 1, st - 1) ) "</div>\n";
+ block = substr( code, st + len );
+ continue;
+
+ } else if ( match(code, "(^|\n)" guard "+(\n|$)" ) ) {
+ len = RLENGTH; st = RSTART;
+ ret = ret "<div>" _nblock( substr(code, 1, st - 1) ) "</div>\n"; block = substr( code, st + len );
+ continue;
+
+ } else {
+ match( block, /(^|\n)[[:space:]]*(\n|$)/ ) || match( block, /$/ );
+ len = RLENGTH; st = RSTART;
+ ret = ret "<p>" inline( substr(block, 1, st - 1) ) "</p>\n"; block = substr(block, st + len);
+ continue;
+ }
+
+ # Fenced Code Block (pandoc)
+ } else if ( match( block, /^(~~~+|```+)/ ) ) {
+ guard = substr( block, 1, RLENGTH ); attrib = code = block;
+ sub(/^[^\n]+\n/, "", code);
+ sub(/^(~~~+|```+)[ \t]*\{?[ \t]*/, "", attrib); sub(/\}?[ \t]*\n.*$/, "", attrib);
+ # attrib = gensub(/^(~~~+|```+)[ \t]*\{?[ \t]*([^\}\n]*)\}?[ \t]*\n.*$/, "\\2", 1, attrib);
+ gsub(/[^a-zA-Z0-9_-]+/, " ", attrib);
+ gsub(/(^ | $)/, "", attrib);
+ if ( match(code, "(^|\n)" guard "+(\n|$)" ) && attrib ) {
+ len = RLENGTH; st = RSTART;
+ ret = ret "<pre><code class=\"" attrib "\">" HTML( substr(code, 1, st - 1) ) "</code></pre>\n";
+ block = substr( code, st + len );
+ continue;
+
+ } else if ( match(code, "(^|\n)" guard "+(\n|$)" ) ) {
+ len = RLENGTH; st = RSTART;
+ ret = ret "<pre><code>" HTML( substr(code, 1, st - 1) ) "</code></pre>\n";
+ block = substr( code, st + len );
+ continue;
+
+ } else {
+ match( block, /(^|\n)[[:space:]]*(\n|$)/ ) || match( block, /$/ );
+ len = RLENGTH; st = RSTART;
+ ret = ret "<p>" inline( substr(block, 1, st - 1) ) "</p>\n"; block = substr(block, st + len);
+ continue;
+ }
+
+ # First Order Heading H1 + Attrib
+ } else if ( match( block, /^([^\n]+)([ \t]*\{([^\}\n]+)\})\n===+(\n|$)/ ) ) {
+ len = RLENGTH; text = attrib = block;
+ sub(/([ \t]*\{([^\}\n]+)\})\n===+(\n.*)?$/, "", text);
+ sub(/\}\n===+(\n.*)?$/, "", attrib); sub(/^([^\n]+)[ \t]*\{/, "", attrib);
+ gsub(/[^a-zA-Z0-9_-]+/, " ", attrib); gsub(/(^ | $)/, "", attrib);
+
+ ret = ret headline(1, text, attrib) ; block = substr( block, len + 1 );
+ continue;
+
+ # First Order Heading H1
+ } else if ( match( block, /^([^\n]+)\n===+(\n|$)/ ) ) {
+ len = RLENGTH; text = substr(block, 1, len);
+ sub(/\n===+(\n.*)?$/, "", text);
+
+ ret = ret headline(1, text, 0) ; block = substr( block, len + 1 );
+ continue;
+
+ # Second Order Heading H2 + Attrib
+ } else if ( match( block, /^([^\n]+)([ \t]*\{([^\}\n]+)\})\n---+(\n|$)/ ) ) {
+ len = RLENGTH; text = attrib = block;
+ sub(/([ \t]*\{([^\}\n]+)\})\n---+(\n.*)?$/, "", text);
+ sub(/\}\n---+(\n.*)?$/, "", attrib); sub(/^([^\n]+)[ \t]*\{/, "", attrib);
+ gsub(/[^a-zA-Z0-9_-]+/, " ", attrib); gsub(/(^ | $)/, "", attrib);
+
+ ret = ret headline(2, text, attrib) ; block = substr( block, len + 1);
+ continue;
+
+ # Second Order Heading H2
+ } else if ( match( block, /^([^\n]+)\n---+(\n|$)/ ) ) {
+ len = RLENGTH; text = substr(block, 1, len);
+ sub(/\n---+(\n.*)?$/, "", text);
+
+ ret = ret headline(2, text, 0) ; block = substr( block, len + 1);
+ continue;
+
+ # # Nth Order Heading H1 H2 H3 H4 H5 H6 + Attrib
+ # } else if ( match( block, /^(##?#?#?#?#?)[ \t]*(([^ \t\n]+|[ \t]+[^ \t\n#]|[ \t]+#+[ \t]*[^ \t\n#])+)[ \t]*#*[ \t]*\{[a-zA-Z \t-]*\}(\n|$)/ ) ) {
+ } else if ( match( block, /^##?#?#?#?#?[^#\n]([^\n#]|#[^\t\n# ]|#[\t ]+[^\t\n ])+#*[\t ]*\{[\ta-zA-Z -]*\}(\n|$)/ ) ) {
+ len = RLENGTH; text = attrib = substr(block, 1, len);
+ match(block, /^##?#?#?#?#?[^#]/); n = RLENGTH - 1;
+ # sub(/^(##?#?#?#?#?)[ \t]*/, "", text); # not working in mawk
+ text = substr(text, n + 1); sub(/^[ \t]*/, "", text);
+ sub(/[ \t]*#*([ \t]*\{([a-zA-Z \t-]*)\})(\n.*)?$/, "", text);
+
+ sub(/^##?#?#?#?#?[^#\n]([^\n#]|#[^\t\n# ]|#[\t ]+[^\t\n ])+#*[\t ]*\{/, "", attrib);
+ sub(/\}(\n.*)?$/, "", attrib);
+ gsub(/[^a-zA-Z0-9_-]+/, " ", attrib); gsub(/(^ | $)/, "", attrib);
+
+ ret = ret headline( n, text, attrib ); block = substr( block, len + 1);
+ continue;
+
+ # Nth Order Heading H1 H2 H3 H4 H5 H6
+ # } else if ( match( block, /^(##?#?#?#?#?)[ \t]*(([^ \t\n]+|[ \t]+[^ \t\n#]|[ \t]+#+[ \t]*[^ \t\n#])+)[ \t]*#*(\n|$)/ ) ) {
+ } else if ( match( block, /^##?#?#?#?#?[^#\n]([^\n#]|#[^\t\n# ]|#[\t ]+[^\t\n ])+#*(\n|$)/ ) ) {
+ len = RLENGTH; text = substr(block, 1, len);
+ match(block, /^##?#?#?#?#?[^#]/); n = RLENGTH - 1;
+ # sub(/^(##?#?#?#?#?)[ \t]+/, "", text); # not working in mawk
+ text = substr(text, n + 1); sub(/^[ \t]*/, "", text);
+ sub(/[ \t]*#*(\n.*)?$/, "", text);
+
+ ret = ret headline( n, text, 0 ) ; block = substr( block, len + 1);
+ continue;
+
+ # block images (wrapped in <figure>)
+ } else if ( match(block, "^!" lix "\\([\n\t ]*" lid "([\n\t ]+" lit ")?[\n\t ]*\\)(\\{[a-zA-Z \t-]*\\})?(\n|$)") ) {
+ len = RLENGTH; text = href = title = attrib = substr( block, 1, len);
+
+ sub("^!\\[", "", text);
+ sub("\\]\\([\n\t ]*" lid "([\n\t ]+" lit ")?[\n\t ]*\\)(\\{[a-zA-Z \t-]*\\})?(\n.*)?$", "", text);
+
+ sub("^!" lix "\\([\n\t ]*", "", href);
+ sub("([\n\t ]+" lit ")?[\n\t ]*\\)(\\{[a-zA-Z \t-]*\\})?(\n.*)?$", "", href);
+
+ sub("^!" lix "\\([\n\t ]*" lid, "", title);
+ sub("[\n\t ]*\\)(\\{[a-zA-Z \t-]*\\})?(\n.*)?$", "", title);
+ sub("^[\n\t ]+", "", title);
+
+ sub("^!" lix "\\([\n\t ]*" lid "([\n\t ]+" lit ")?[\n\t ]*\\)", "", attrib);
+ sub("(\n.*)?$", "", attrib);
+ sub(/^\{[ \t]*/, "", attrib); sub(/[ \t]*\}$/, "", attrib); gsub(/[ \t]+/, " ", attrib);
+
+ if ( match(href, /^<.*>$/) ) { sub(/^</, "", href); sub(/>$/, "", href); }
+ if ( match(title, /^".*"$/) ) { sub(/^"/, "", title); sub(/"$/, "", title); }
+ else if ( match(title, /^'.*'$/) ) { sub(/^'/, "", title); sub(/'$/, "", title); }
+ else if ( match(title, /^\(.*\)$/) ) { sub(/^\(/, "", title); sub(/\)$/, "", title); }
+
+ gsub(/^[\t ]+$/, "", text); gsub(/\\/, "", href);
+
+ ret = ret "<figure data-src=\"" HTML(href) "\"" (attrib?" class=\"" HTML(attrib) "\"":"") ">" \
+ "<img src=\"" HTML(href) "\" alt=\"" HTML(text?text:title?title:href) "\"" \
+ (attrib?" class=\"" HTML(attrib) "\"":"") ">" \
+ (title?"<figcaption>" inline(title) "</figcaption>":"") \
+ "</figure>\n\n";
+ block = substr( block, len + 1);
+ continue;
+
+ } else if ( match(block, /^!\[([^]]*)\] ?\[([^]]*)\](\n|$)/ ) ) {
+ len = RLENGTH; text = id = block;
+ sub(/(\n.*)?$/, "", text); sub( /^!\[/, "", text); sub(/\] ?\[([^\n]*)\]$/, "", text);
+ sub(/(\n.*)?$/, "", id); sub( /^!\[([^\n]*)\] ?\[/, "", id); sub(/\]$/, "", id);
+ # text = gensub(/^!\[([^\n]*)\] ?\[([^\n]*)\](\n.*)?$/, "\\1", 1, block);
+ # id = gensub(/^!\[([^\n]*)\] ?\[([^\n]*)\](\n.*)?$/, "\\2", 1, block);
+ if ( ! id ) id = text;
+ if ( rl_href[id] && rl_title[id] ) {
+ ret = ret "<figure data-src=\"" HTML(rl_href[id]) "\">" \
+ "<img src=\"" HTML(rl_href[id]) "\" alt=\"" HTML(text) "\">" \
+ "<figcaption>" inline(rl_title[id]) "</figcaption>" \
+ "</figure>\n\n";
+ block = substr( block, len + 1);
+ continue;
+
+ } else if ( rl_href[id] ) {
+ ret = ret "<figure data-src=\"" HTML(rl_href[id]) "\">" \
+ "<img src=\"" HTML(rl_href[id]) "\" alt=\"" HTML(text) "\">" \
+ "</figure>\n\n";
+ block = substr( block, len + 1);
+ continue;
+ } else {
+ ret = ret "<p>" HTML(substr(block, 1, len)) "</p>\n" ; block = substr(block, len + 1);
+ continue;
+ }
+
+ # Macros (standalone <<macro>> calls handled as block, so they are not wrapped in paragraph)
+ } else if ( match( block, /^<<(([^>]|>[^>])+)>>(\n|$)/ ) ) {
+ len = RLENGTH; text = block;
+ sub(/^<</, "", text); sub(/>>(\n.*)?$/, "", text);
+ # text = gensub(/^<<(([^>]|>[^>])+)>>(\n.*)?$/, "\\1", 1, block);
+ ret = ret "<code class=\"macro\">" HTML(text) "</code>" ; block = substr(block, len + 1);
+ continue;
+
+ # Definition list
+ } else if (match( block, "^(([ \t]*\n)*[^:\n \t][^\n]+\n" \
+ "([ \t]*\n)* ? ? ?:[ \t][^\n]+(\n|$)" \
+ "(([ \t]*\n)* ? ? ?:[ \t][^\n]+(\n|$)" \
+ "|[^:\n \t][^\n]+(\n|$)" \
+ "|( ? ? ?\t| +)[^\n]+(\n|$)" \
+ "|([ \t]*\n)+( ? ? ?\t| +)[^\n]+(\n|$))*)+" \
+ )) {
+ list = substr( block, 1, RLENGTH); block = substr( block, RLENGTH + 1);
+ ret = ret "<dl>\n" _dlist( list ) "</dl>\n";
+ continue;
+
+ # Unordered list types
+ } else if ( text = _startlist( block, "ul", "-", "([+*•]|[0-9]+\\.|#\\.|[0-9]+\\)|#\\))") ) {
+ return ret text;
+ } else if ( text = _startlist( block, "ul", "\\+", "([-*•]|[0-9]+\\.|#\\.|[0-9]+\\)|#\\))") ) {
+ return ret text;
+ } else if ( text = _startlist( block, "ul", "\\*", "([-+•]|[0-9]+\\.|#\\.|[0-9]+\\)|#\\))") ) {
+ return ret text;
+ } else if ( text = _startlist( block, "ul", "•", "([-+*]|[0-9]+\\.|#\\.|[0-9]+\\)|#\\))") ) {
+ return ret text;
+
+ # Ordered list types
+ } else if ( text = _startlist( block, "ol", "[0-9]+\\.", "([-+*•]|#\\.|[0-9]+\\)|#\\))") ) {
+ return ret text;
+ } else if ( text = _startlist( block, "ol", "[0-9]+\\)", "([-+*•]|[0-9]+\\.|#\\.|#\\))") ) {
+ return ret text;
+ } else if ( text = _startlist( block, "ol", "#\\.", "([-+*•]|[0-9]+\\.|[0-9]+\\)|#\\))") ) {
+ return ret text;
+ } else if ( text = _startlist( block, "ol", "#\\)", "([-+*•]|[0-9]+\\.|#\\.|[0-9]+\\))") ) {
+ return ret text;
+
+ # Split paragraphs
+ } else if ( match( block, /(^|\n)[[:space:]]*(\n|$)/) ) {
len = RLENGTH; st = RSTART;
- return "<pre><code class=\"" attrib "\">" HTML( substr(code, 1, st - 1) ) "</code></pre>\n" \
- _block( substr( code, st + len ) );
- } else {
- match( block, /(^|\n)[[:space:]]*(\n|$)/ ) || match( block, /$/ );
+ ret = ret _block( substr(block, 1, st - 1) ) "\n"; block = substr(block, st + len);
+ continue;
+
+ # Horizontal rule
+ # } else if ( match( block, /(^|\n) ? ? ?((\* *){3,}|(- *){3,}|(_ *){3,})($|\n)/) ) {
+ } else if ( match( block, /(^|\n) ? ? ?((\* *)(\* *)(\* *)(\* *)*|(- *)(- *)(- *)(- *)*|(_ *)(_ *)(_ *)(_ *)*)($|\n)/) ) {
len = RLENGTH; st = RSTART;
- return "<p>" inline( substr(block, 1, st - 1) ) "</p>\n" \
- _block( substr(block, st + len) );
- }
+ ret = ret _block(substr(block, 1, st - 1)) "<hr>\n"; block = substr(block, st + len);
+ continue;
- # Unordered list
- } else if ( match( block, "^ ? ? ?[-+*][ \t]+[^\n]+(\n|$)" \
- "(([ \t]*\n)* ? ? ?[-+*][ \t]+[^\n]+(\n|$)" \
- "|([ \t]*\n)*( ? ? ?\t| +)[^\n]+(\n|$)" \
- "|[^\n]+(\n|$))*" ) ) {
- list = substr( block, 1, RLENGTH);
- block = substr( block, RLENGTH + 1);
- indent = length( gensub(/[-+*][ \t]+[^\n]+.*$/, "", 1, list) );
-
- gsub("(^|\n) {0," indent "}", "\n", list);
- return "\n<ul>\n" _list( substr(list, 2) ) "</ul>\n" _block( block );
-
- # Ordered list
- } else if ( match( block, "^ ? ? ?([0-9]+|#)\\.[ \t]+[^\n]+(\n|$)" \
- "(([ \t]*\n)* ? ? ?([0-9]+|#)\\.[ \t]+[^\n]+(\n|$)" \
- "|([ \t]*\n)*( ? ? ?\t| +)[^\n]+(\n|$)" \
- "|[^\n]+(\n|$))*" ) ) {
- list = substr( block, 1, RLENGTH);
- block = substr( block, RLENGTH + 1);
- indent = length( gensub(/([0-9]+|#)\.[ \t]+[^\n]+.*$/, "", 1, list) );
-
- gsub("(^|\n) {0," indent "}", "\n", list);
- return "\n<ol>\n" _list( substr(list, 2) ) "</ol>\n" _block( block );
-
- # First Order Heading
- } else if ( match( block, /^[^\n]+\n===+(\n|$)/ ) ) {
- len = RLENGTH;
- HL[1]++; HL[2] = 0; HL[3] = 0; HL[4] = 0; HL[5] = 0; HL[6] = 0;
- return "<h1 id=\"" HL[1] " - " HTML(gensub( /\n.*$/, "", "g", block )) "\">" inline( gensub( /\n.*$/, "", "g", block ) ) "</h1>\n\n" \
- _block( substr( block, len + 1 ) );
-
- # Second Order Heading
- } else if ( match( block, /^[^\n]+\n---+(\n|$)/ ) ) {
- len = RLENGTH;
- HL[2]++; HL[3] = 0; HL[4] = 0; HL[5] = 0; HL[6] = 0;
- return "<h2 id=\"" HL[1] "." HL[2] " - " HTML(gensub( /\n.*$/, "", "g", block )) "\">" inline( gensub( /\n.*$/, "", "g", block ) ) "</h2>\n\n" \
- _block( substr( block, len + 1) );
-
- # Nth Order Heading
- } else if ( match( block, /^#{1,6}[ \t]*[^\n]+([ \t]*#*)(\n|$)/ ) ) {
- len = RLENGTH;
- hlvl = length( gensub( /^(#{1,6}).*$/, "\\1", "g", block ) );
- htxt = gensub(/^#{1,6}[ \t]*(([^ \t\n]+|[ \t]+[^ \t\n#]|[ \t]+#+[^\n#])+)([ \t]*#*)(\n.*)?$/, "\\1", 1, block);
- HL[hlvl]++; for ( n = hlvl + 1; n < 7; n++) { HL[n] = 0;}
- hid = HL[1]; for ( n = 2; n <= hlvl; n++) { hid = hid "." HL[n] ; }
- return "<h" hlvl " id=\"" hid " - " HTML(htxt) "\">" inline( htxt ) "</h" hlvl ">\n\n" \
- _block( substr( block, len + 1) );
-
- # Split paragraphs
- } else if ( match( block, /(^|\n)[[:space:]]*(\n|$)/) ) {
- len = RLENGTH; st = RSTART;
- return _block( substr(block, 1, st - 1) ) "\n" \
- _block( substr(block, st + len) );
-
- # Horizontal rule
- } else if ( match( block, /(^|\n) ? ? ?((\* *){3,}|(- *){3,}|(_ *){3,})($|\n)/) ) {
- len = RLENGTH; st = RSTART;
- return _block(substr(block, 1, st - 1)) "<hr />\n" _block(substr(block, st + len));
-
- # Plain paragraph
- } else {
- return "<p>" inline(block) "</p>\n";
+ # Plain paragraph
+ } else {
+ return ret "<p>" inline(block) "</p>\n";
+ }
}
+ return ret;
}
-function _list( block, last, LOCAL, p) {
- if ( ! length(block) ) return "";
- gsub(/^([-+*]|[0-9]+\.|#\.)( ? ? ?|\t)/, "", block)
+function _startlist(block, type, mark, exclude, LOCAL, st, len, list, indent, it, text) {
+ if (match( block, "(^|\n) ? ? ?" mark "[ \t][^\n]+(\n|$)" \
+ "(([ \t]*\n)* ? ? ?" mark "[ \t][^\n]+(\n|$)" \
+ "|([ \t]*\n)*( ? ? ?\t| +)[^\n]+(\n|$)" \
+ "|[^\n \t][^\n]+(\n|$))*" ) ) {
+ st = RSTART; len = RLENGTH; list = substr( block, st, len);
+
+ sub("^\n", "", list); match(list, "^( | | )?"); indent = RLENGTH;
+ # gsub( "(^|\n) {0," indent "}", "\n", list); sub("^\n", "", list);
+ # emulate greedy range matcher for mawk
+ it = "("; while ( indent > 0 ) { for (k = indent; k > 0; k--) { it = it " "; } it = it "|"; indent--; }
+ sub(/\|$/, ")?", it); sub(/^\($/, "", it);
+ gsub( "(^|\n)" it, "\n", list ); sub("^\n", "", list);
+
+ text = substr(block, 1, st - 1); block = substr(block, st + len);
+ if (match(text, /\n[[:space:]]*\n/)) return 0;
+ if (match(text, "(^|\n) ? ? ?" exclude "[ \t][^\n]+")) return 0;
+ if (match( list, "\n" exclude "[ \t]" )) {
+ block = substr(list, RSTART + 1) block;
+ list = substr(list, 1, RSTART);
+ }
- # slice next list item from input
- if ( match( block, /\n([-+*]|[0-9]+\.|#\.)[ \t]+[^\n]+/) ) {
- p = substr( block, 1, RSTART);
- block = substr( block, RSTART + 1);
- } else {
- p = block; block = "";
- }
- sub( /\n +([-+*]|[0-9]+\.|#\.)/, "\n&", p );
-
- # if this should be a paragraph item
- # either previous item (last) or current item (p) contains blank lines
- if (match(last, /\n[[:space:]]*\n/) || match(p, /\n[[:space:]]*\n/) ) {
- last = p; p = _block(p);
- } else {
- last = p; p = _block(p);
- sub( /^<p>/, "", p );
- sub( /<\/p>\n/, "", p );
+ return _block( text ) "<" type ">\n" _list( list, mark ) "</" type ">\n" _block( block );
+ } else return 0;
+}
+
+function _list (block, mark, p, LOCAL, len, st, text, indent, it, task) {
+ if ( match(block, "^([ \t]*\n)*$")) return;
+
+ match(block, "^" mark "[ \t]"); indent = RLENGTH;
+
+ sub("^" mark "[ \t]", "", block);
+
+ if (match(block, /\n[ \t]*\n/)) p = 1;
+
+ match( block, "\n" mark "[ \t][^\n]+(\n|$)" );
+ st = (RLENGTH == -1) ? length(block) + 1 : RSTART;
+ text = substr(block, 1, st); block = substr(block, st + 1);
+
+ # gsub("\n {0," indent "}", "\n", text);
+ # emulate greedy range matcher for mawk
+ it = "("; while ( indent > 0 ) { for (k = indent; k > 0; k--) { it = it " "; } it = it "|"; indent--; }
+ sub(/\|$/, ")?", it); sub(/^\($/, "", it);
+ gsub("\n" it, "\n", text);
+
+ task = match( text, /^\[ \]/ ) ? "<li class=\"task pending\"><input type=checkbox disabled>" : \
+ match( text, /^\[-\]/ ) ? "<li class=\"task negative\"><input type=checkbox disabled>" : \
+ match( text, /^\[\/\]/ ) ? "<li class=\"task partial\"><input type=checkbox disabled>" : \
+ match( text, /^\[\?\]/ ) ? "<li class=\"task unsure\"><input type=checkbox disabled>" : \
+ match( text, /^\[[xX]\]/) ? "<li class=\"task done\"><input type=checkbox disabled checked>" : "<li>";
+ sub(/^\[[-? \/xX]\]/, "", text);
+
+ text = _nblock( text );
+ if ( ! p && match( text, "^<p>(</p[^>]|</[^p]|<[^/]|[^<])*</p>\n$" ))
+ gsub( "(^<p>|</p>\n$)", "", text);
+
+ return task text "</li>\n" _list(block, mark, p);
+}
+
+function _dlist (block, LOCAL, len, st, text, indent, it, p) {
+ if (match( block, "^([ \t]*\n)*[^:\n \t][^\n]+\n" )) {
+ len = RLENGTH; text = substr(block, 1, len);
+ gsub( "(^\n*|\n*$)", "", text );
+ return "<dt>" inline( text ) "</dt>\n" _dlist( substr(block, len + 1) );
+ } else if (match( block, "^([ \t]*\n)* ? ? ?:[ \t][^\n]+(\n|$)" \
+ "([^:\n \t][^\n]+(\n|$)" \
+ "|( ? ? ?\t| +)[^\n]+(\n|$)" \
+ "|([ \t]*\n)+( ? ? ?\t| +)[^\n]+(\n|$))*" \
+ )) {
+ len = RLENGTH; text = substr(block, 1, len);
+ sub( "^([ \t]*\n)*", "", text);
+ match(text, "^ ? ? ?:(\t| +)"); indent = RLENGTH;
+ sub( "^ ? ? ?:(\t| +)", "", text);
+ # gsub( "(^|\n) {0," indent "}", "\n", text );
+ # emulate greedy range matcher for mawk
+ it = "("; while ( indent > 0 ) { for (k = indent; k > 0; k--) { it = it " "; } it = it "|"; indent--; }
+ sub(/\|$/, ")?", it); sub(/^\($/, "", it);
+ gsub( "(^|\n)" it, "\n", text );
+
+ text = _nblock(text);
+ if (match( text, "^<p>(</p[^>]|</[^p]|<[^/]|[^<])*</p>\n$" ))
+ gsub( "(^<p>|</p>\n$)", "", text);
+
+ return "<dd>" text "</dd>\n" _dlist( substr(block, len + 1) );
}
- sub( /\n$/, "", p );
-
- # Task List (pandoc, custom)
- if ( p ~ /^\[ \].*/ ) { return "<li class=\"task pending\"><input type=checkbox disabled />" \
- substr(p, 4) "</li>\n" _list( block, last );
- } else if ( p ~ /^\[-\].*/ ) { return "<li class=\"task negative\"><input type=checkbox disabled />" \
- substr(p, 4) "</li>\n" _list( block, last );
- } else if ( p ~ /^\[\?\].*/ ) { return "<li class=\"task unsure\"><input type=checkbox disabled />" \
- substr(p, 4) "</li>\n" _list( block, last );
- } else if ( p ~ /^\[\/\].*/ ) { return "<li class=\"task partial\"><input type=checkbox disabled />" \
- substr(p, 4) "</li>\n" _list( block, last );
- } else if ( p ~ /^\[[xX]\].*/ ) { return "<li class=\"task done\"><input type=checkbox disabled checked />" \
- substr(p, 4) "</li>\n" _list( block, last );
- } else if ( p ~ /^<p>\[ \].*/ ) { return "<li class=\"task pending\"><p><input type=checkbox disabled />" \
- substr(p, 7) "</li>\n" _list( block, last );
- } else if ( p ~ /^<p>\[-\].*/ ) { return "<li class=\"task negative\"><p><input type=checkbox disabled />" \
- substr(p, 7) "</li>\n" _list( block, last );
- } else if ( p ~ /^<p>\[\?\].*/ ) { return "<li class=\"task unsure\"><p><input type=checkbox disabled />" \
- substr(p, 7) "</li>\n" _list( block, last );
- } else if ( p ~ /^<p>\[\/\].*/ ) { return "<li class=\"task partial\"><p><input type=checkbox disabled />" \
- substr(p, 7) "</li>\n" _list( block, last );
- } else if ( p ~ /^<p>\[[xX]\].*/ ) { return "<li class=\"task done\"><p><input type=checkbox disabled checked />" \
- substr(p, 7) "</li>\n" _list( block, last );
- } else { return "<li>" p "</li>\n" _list( block, last ); }
}
BEGIN {
file = ""; rl_href[""] = ""; rl_title[""] = "";
if (ENVIRON["MD_HTML"] == "true") { AllowHTML = "true"; }
HL[1] = 0; HL[2] = 0; HL[3] = 0; HL[4] = 0; HL[5] = 0; HL[6] = 0;
+ # hls = "0 0 0 0 0 0";
+
+ # Universal Patterns
+ nu = "([^_\\\\]|\\\\.|_[[:alnum:]])" # not underline (except when escaped, or inside a word)
+ na = "([^*\\\\]|\\\\.)" # not asterisk (except when escaped)
+ ieu = "_([^_[:space:]]|[^_[:space:]]" nu "*[^_[:space:]])_" # inner <em> (underline)
+ isu = "__([^_[:space:]]|[^_[:space:]]" nu "*[^_[:space:]])__" # inner <strong> (underline)
+ iea = "\\*([^*[:space:]]|[^*[:space:]]" na "*[^*[:space:]])\\*" # inner <em> (asterisk)
+ isa = "\\*\\*([^*[:space:]]|[^*[:space:]]" na "*[^*[:space:]])\\*\\*" # inner <strong> (asterisk)
+
+ lix="\\[(\\\\[^\n]|[^]\n\\\\[])*\\]" # link text
+ lid="(<(\\\\[^\n]|[^\n<>\\\\])*>|(\\\\.|[^()\"'\\\\])+|([^<\n\t ()\\\\]|\\\\[^\n])(\\\\[\n]|[^\n\t \\(\\)\\\\])*)" # link dest
+ lit="(\"(\\\\.|[^\"\\\\])*\"|'(\\\\.|[^'\\\\])*'|\\((\\\\.|[^\\(\\)\\\\])*\\))" # link text
+ # link text with image def
+ lii="\\[(\\\\[^\n]|[^]\n\\\\[])*(!" lix "\\([\n\t ]*" lid "([\n\t ]+" lit ")?[\n\t ]*\\))?(\\\\[^\n]|[^]\n\\\\[])*\\]"
# Buffering of full file ist necessary, e.g. to find reference links
while (getline) { file = file $0 "\n"; }
re_reflink = "(^|\n) ? ? ?\\[([^]\n]+)\\]: ([^ \t\n]+)(\n?[ \t]+(\"([^\"]+)\"|'([^']+)'|\\(([^)]+)\\)))?(\n|$)";
# /(^|\n) ? ? ?\[([^]\n]+)\]: ([^ \t\n]+)(\n?[ \t]+("([^"]+)"|'([^']+)'|\(([^)]+)\)))?(\n|$)/
while ( match(f, re_reflink ) ) {
- rl_id = gensub( re_reflink, "\\2", 1, substr(f, RSTART, RLENGTH) );
- rl_href[rl_id] = gensub( re_reflink, "\\3", 1, substr(f, RSTART, RLENGTH) );
- rl_title[rl_id] = gensub( re_reflink, "\\5", 1, substr(f, RSTART, RLENGTH) );
- f = substr(f, RSTART + RLENGTH);
+ tt = th = ti = substr(f, RSTART, RLENGTH); f = substr(f, RSTART + RLENGTH);
+ sub("(^|\n) ? ? ?\\[", "", ti); sub("\\]: ([^ \t\n]+)(\n?[ \t]+(\"([^\"]+)\"|'([^']+)'|\\(([^)]+)\\)))?(\n.*)?$", "", ti);
+ sub("(^|\n) ? ? ?\\[([^]\n]+)\\]: ", "", th); sub("(\n?[ \t]+(\"([^\"]+)\"|'([^']+)'|\\(([^)]+)\\)))?(\n.*)?$", "", th);
+ if (match(tt, "(^|\n) ? ? ?\\[([^]\n]+)\\]: ([^ \t\n]+)(\n?[ \t]+(\"([^\"]+)\"|'([^']+)'|\\(([^)]+)\\)))(\n|$)")) {
+ sub("(^|\n) ? ? ?\\[([^]\n]+)\\]: ([^ \t\n]+)", "", tt); sub("^\n?[ \t]+", "", tt); sub("(\n.*)?$", "", tt);
+ } else { tt = ""; }
+ rl_id = ti; rl_href[rl_id] = th; rl_title[rl_id] = tt;
+ # rl_id = gensub( re_reflink, "\\2", 1, substr(f, RSTART, RLENGTH) );
+ # rl_href[rl_id] = gensub( re_reflink, "\\3", 1, substr(f, RSTART, RLENGTH) );
+ # rl_title[rl_id] = gensub( re_reflink, "\\5", 1, substr(f, RSTART, RLENGTH) );
+ # f = substr(f, RSTART + RLENGTH);
rl_title[rl_id] = substr( rl_title[rl_id], 2, length(rl_title[rl_id]) - 2 );
if ( rl_href[rl_id] ~ /<.*>/ ) rl_href[rl_id] = substr( rl_href[rl_id], 2, length(rl_href[rl_id]) - 2 );
}
# for (n in rl_href) { debug(n " | " rl_href[n] " | " rl_title[n] ); }
# Run Block Processing -> The Actual Markdown!
- printf "%s", _block( file );
+ printf "%s", _nblock( file );
}
projects / cgilite / blobdiff