diff --git a/admin/editor-js.php b/admin/editor-js.php
index 21198f5a..1dd25cf2 100644
--- a/admin/editor-js.php
+++ b/admin/editor-js.php
@@ -64,7 +64,9 @@ $(document).ready(function () {
span = '',
cache = {};
- Markdown.Extra.init(converter);
+ Markdown.Extra.init(converter, {
+ 'extensions' : ["tables", "fenced_code_gfm", "def_list", "attr_list", "footnotes", "strikethrough", "newlines"]
+ });
// 自动跟随
converter.hooks.chain('postConversion', function (html) {
diff --git a/admin/js/markdown-extra-extended.js b/admin/js/markdown-extra-extended.js
deleted file mode 100644
index ba4dc391..00000000
--- a/admin/js/markdown-extra-extended.js
+++ /dev/null
@@ -1,3012 +0,0 @@
-/*!
- * Copyright (c) 2006 js-markdown-extra developers
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-var MARKDOWN_VERSION = "1.0.1o";
-var MARKDOWNEXTRA_VERSION = "1.2.5";
-
-// Global default settings:
-
-/** Change to ">" for HTML output */
-var MARKDOWN_EMPTY_ELEMENT_SUFFIX = " />";
-
-/** Define the width of a tab for code blocks. */
-var MARKDOWN_TAB_WIDTH = 4;
-
-/** Optional title attribute for footnote links and backlinks. */
-var MARKDOWN_FN_LINK_TITLE = "";
-var MARKDOWN_FN_BACKLINK_TITLE = "";
-
-/** Optional class attribute for footnote links and backlinks. */
-var MARKDOWN_FN_LINK_CLASS = "";
-var MARKDOWN_FN_BACKLINK_CLASS = "";
-
-/** Change to false to remove Markdown from posts and/or comments. */
-var MARKDOWN_WP_POSTS = true;
-var MARKDOWN_WP_COMMENTS = true;
-
-/** Standard Function Interface */
-MARKDOWN_PARSER_CLASS = 'MarkdownExtraExtended_Parser';
-
-/**
- * Converts Markdown formatted text to HTML.
- * @param text Markdown text
- * @return HTML
- */
-function MarkdownText(text) {
- //Initialize the parser and return the result of its transform method.
- var parser;
- if('undefined' == typeof arguments.callee.parser) {
- parser = eval("new " + MARKDOWN_PARSER_CLASS + "()");
- parser.init();
- arguments.callee.parser = parser;
- }
- else {
- parser = arguments.callee.parser;
- }
- // Transform text using parser.
- return parser.transform(text);
-}
-
-/**
- * Constructor function. Initialize appropriate member variables.
- */
-function Markdown_Parser() {
-
- this.nested_brackets_depth = 6;
- this.nested_url_parenthesis_depth = 4;
- this.escape_chars = "\\\\`*_{}[]()>#+-.!";
-
- // Document transformations
- this.document_gamut = [
- // Strip link definitions, store in hashes.
- ['stripLinkDefinitions', 20],
- ['runBasicBlockGamut', 30]
- ];
-
- // These are all the transformations that form block-level
- /// tags like paragraphs, headers, and list items.
- this.block_gamut = [
- ['doHeaders', 10],
- ['doHorizontalRules', 20],
- ['doLists', 40],
- ['doCodeBlocks', 50],
- ['doBlockQuotes', 60]
- ];
-
- // These are all the transformations that occur *within* block-level
- // tags like paragraphs, headers, and list items.
- this.span_gamut = [
- // Process character escapes, code spans, and inline HTML
- // in one shot.
- ['parseSpan', -30],
- // Process anchor and image tags. Images must come first,
- // because ![foo][f] looks like an anchor.
- ['doImages', 10],
- ['doAnchors', 20],
- // Make links out of things like ``
- // Must come after doAnchors, because you can use < and >
- // delimiters in inline links like [this]().
- ['doAutoLinks', 30],
- ['encodeAmpsAndAngles', 40],
- ['doItalicsAndBold', 50],
- ['doHardBreaks', 60]
- ];
-
- this.em_relist = [
- ['' , '(?:(^|[^\\*])(\\*)(?=[^\\*])|(^|[^_])(_)(?=[^_]))(?=\\S|$)(?![\\.,:;]\\s)'],
- ['*', '((?:\\S|^)[^\\*])(\\*)(?!\\*)'],
- ['_', '((?:\\S|^)[^_])(_)(?!_)']
- ];
- this.strong_relist = [
- ['' , '(?:(^|[^\\*])(\\*\\*)(?=[^\\*])|(^|[^_])(__)(?=[^_]))(?=\\S|$)(?![\\.,:;]\\s)'],
- ['**', '((?:\\S|^)[^\\*])(\\*\\*)(?!\\*)'],
- ['__', '((?:\\S|^)[^_])(__)(?!_)']
- ];
- this.em_strong_relist = [
- ['' , '(?:(^|[^\\*])(\\*\\*\\*)(?=[^\\*])|(^|[^_])(___)(?=[^_]))(?=\\S|$)(?![\\.,:;]\\s)'],
- ['***', '((?:\\S|^)[^\\*])(\\*\\*\\*)(?!\\*)'],
- ['___', '((?:\\S|^)[^_])(___)(?!_)']
- ];
-}
-
-Markdown_Parser.prototype.init = function() {
- // this._initDetab(); // NOTE: JavaScript string length is already based on Unicode
- this.prepareItalicsAndBold();
-
- // Regex to match balanced [brackets].
- // Needed to insert a maximum bracked depth while converting to PHP.
- // NOTE: JavaScript doesn't have so faster option for RegExp
- //this.nested_brackets_re = new RegExp(
- // str_repeat('(?>[^\\[\\]]+|\\[', this.nested_brackets_depth) +
- // str_repeat('\\])*', this.nested_brackets_depth)
- //);
- // NOTE: JavaScript doesn't have so faster option for RegExp
- //this.nested_url_parenthesis_re = new RegExp(
- // str_repeat('(?>[^()\\s]+|\\(', this.nested_url_parenthesis_depth) +
- // str_repeat('(?>\\)))*', this.nested_url_parenthesis_depth)
- //);
-
- // NOTE: Below codes are hopelessly slow.
- //this.nested_brackets_re =
- // this._php_str_repeat('(?:[^\\[\\]]+|\\[', this.nested_brackets_depth) +
- // this._php_str_repeat('\\])*', this.nested_brackets_depth);
- //this.nested_url_parenthesis_re =
- // this._php_str_repeat('(?:[^\\(\\)\\s]+|\\(', this.nested_url_parenthesis_depth) +
- // this._php_str_repeat('(?:\\)))*', this.nested_url_parenthesis_depth);
-
- // So, instead:
- this.nested_brackets_re = '(?:[^\\]]*?)';
- this.nested_url_parenthesis_re = '(?:[^\\)\\s]*?)';
-
- // Table of hash values for escaped characters:
- var tmp = [];
- for(var i = 0; i < this.escape_chars.length; i++) {
- tmp.push(this._php_preg_quote(this.escape_chars.charAt(i)));
- }
- this.escape_chars_re = '[' + tmp.join('') + ']';
-
- // Change to ">" for HTML output.
- this.empty_element_suffix = MARKDOWN_EMPTY_ELEMENT_SUFFIX;
- this.tab_width = MARKDOWN_TAB_WIDTH;
-
- // Change to `true` to disallow markup or entities.
- this.no_markup = false;
- this.no_entities = false;
-
- // Predefined urls and titles for reference links and images.
- this.predef_urls = {};
- this.predef_titles = {};
-
- // Sort document, block, and span gamut in ascendent priority order.
- function cmp_gamut(a, b) {
- a = a[1]; b = b[1];
- return a > b ? 1 : a < b ? -1 : 0;
- }
- this.document_gamut.sort(cmp_gamut);
- this.block_gamut.sort(cmp_gamut);
- this.span_gamut.sort(cmp_gamut);
-
- // Internal hashes used during transformation.
- this.urls = {};
- this.titles = {};
- this.html_hashes = {};
-
- // Status flag to avoid invalid nesting.
- this.in_anchor = false;
-};
-
-/**
- * [porting note]
- * JavaScript's RegExp doesn't have escape code \A and \Z.
- * So multiline pattern can't match start/end of text. Instead
- * wrap whole of text with STX(02) and ETX(03).
- */
-Markdown_Parser.prototype.__wrapSTXETX__ = function(text) {
- if(text.charAt(0) != '\x02') { text = '\x02' + text; }
- if(text.charAt(text.length - 1) != '\x03') { text = text + '\x03'; }
- return text;
-};
-
-/**
- * [porting note]
- * Strip STX(02) and ETX(03).
- */
-Markdown_Parser.prototype.__unwrapSTXETX__ = function(text) {
- if(text.charAt(0) == '\x02') { text = text.substr(1); }
- if(text.charAt(text.length - 1) == '\x03') { text = text.substr(0, text.length - 1); }
- return text;
-};
-
-/**
- *
- */
-Markdown_Parser.prototype._php_preg_quote = function(text) {
- if(!arguments.callee.sRE) {
- arguments.callee.sRE = /(\/|\.|\*|\+|\?|\||\(|\)|\[|\]|\{|\}\\)/g;
- }
- return text.replace(arguments.callee.sRE, '\\$1');
-};
-
-Markdown_Parser.prototype._php_str_repeat = function(str, n) {
- var tmp = str;
- for(var i = 1; i < n; i++) {
- tmp += str;
- }
- return tmp;
-};
-
-Markdown_Parser.prototype._php_trim = function(target, charlist) {
- var chars = charlist || " \t\n\r";
- return target.replace(
- new RegExp("^[" + chars + "]*|[" + chars + "]*$", "g"), ""
- );
-};
-
-Markdown_Parser.prototype._php_rtrim = function(target, charlist) {
- var chars = charlist || " \t\n\r";
- return target.replace(
- new RegExp( "[" + chars + "]*$", "g" ), ""
- );
-};
-
-Markdown_Parser.prototype._php_htmlspecialchars_ENT_NOQUOTES = function(str) {
- return str.replace(/&/g, '&').replace(//g, '>');
-};
-
-
-/**
- * Called before the transformation process starts to setup parser
- * states.
- */
-Markdown_Parser.prototype.setup = function() {
- // Clear global hashes.
- this.urls = this.predef_urls;
- this.titles = this.predef_titles;
- this.html_hashes = {};
-
- this.in_anchor = false;
-};
-
-/**
- * Called after the transformation process to clear any variable
- * which may be taking up memory unnecessarly.
- */
-Markdown_Parser.prototype.teardown = function() {
- this.urls = {};
- this.titles = {};
- this.html_hashes = {};
-};
-
-/**
- * Main function. Performs some preprocessing on the input text
- * and pass it through the document gamut.
- */
-Markdown_Parser.prototype.transform = function(text) {
- this.setup();
-
- // Remove UTF-8 BOM and marker character in input, if present.
- text = text.replace(/^\xEF\xBB\xBF|\x1A/, "");
-
- // Standardize line endings:
- // DOS to Unix and Mac to Unix
- text = text.replace(/\r\n?/g, "\n", text);
-
- // Make sure $text ends with a couple of newlines:
- text += "\n\n";
-
- // Convert all tabs to spaces.
- text = this.detab(text);
-
- // Turn block-level HTML blocks into hash entries
- text = this.hashHTMLBlocks(text);
-
- // Strip any lines consisting only of spaces and tabs.
- // This makes subsequent regexen easier to write, because we can
- // match consecutive blank lines with /\n+/ instead of something
- // contorted like /[ ]*\n+/ .
- text = text.replace(/^[ ]+$/m, "");
-
- // Run document gamut methods.
- for(var i = 0; i < this.document_gamut.length; i++) {
- var method = this[this.document_gamut[i][0]];
- if(method) {
- text = method.call(this, text);
- }
- else {
- console.log(this.document_gamut[i][0] + ' not implemented');
- }
- }
-
- this.teardown();
-
- return text + "\n";
-};
-
-Markdown_Parser.prototype.hashHTMLBlocks = function(text) {
- if(this.no_markup) { return text; }
-
- var less_than_tab = this.tab_width - 1;
-
- // Hashify HTML blocks:
- // We only want to do this for block-level HTML tags, such as headers,
- // lists, and tables. That's because we still want to wrap
s around
- // "paragraphs" that are wrapped in non-block-level tags, such as anchors,
- // phrase emphasis, and spans. The list of tags we're looking for is
- // hard-coded:
- //
- // * List "a" is made of tags which can be both inline or block-level.
- // These will be treated block-level when the start tag is alone on
- // its line, otherwise they're not matched here and will be taken as
- // inline later.
- // * List "b" is made of tags which are always block-level;
-
- var block_tags_a_re = 'ins|del';
- var block_tags_b_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|' +
- 'script|noscript|form|fieldset|iframe|math';
-
- // Regular expression for the content of a block tag.
- var nested_tags_level = 4;
- var attr =
- '(?:' + // optional tag attributes
- '\\s' + // starts with whitespace
- '(?:' +
- '[^>"/]+' + // text outside quotes
- '|' +
- '/+(?!>)' + // slash not followed by ">"
- '|' +
- '"[^"]*"' + // text inside double quotes (tolerate ">")
- '|' +
- '\'[^\']*\'' + // text inside single quotes (tolerate ">")
- ')*' +
- ')?';
- var content =
- this._php_str_repeat(
- '(?:' +
- '[^<]+' + // content without tag
- '|' +
- '<\\2' + // nested opening tag
- attr + // attributes
- '(?:' +
- '/>' +
- '|' +
- '>',
- nested_tags_level
- ) + // end of opening tag
- '.*?' + // last level nested tag content
- this._php_str_repeat(
- '' + // closing nested tag
- ')' +
- '|' +
- '<(?!/\\2\\s*>)' + // other tags with a different name
- ')*',
- nested_tags_level
- );
-
- var content2 = content.replace('\\2', '\\3');
-
- // First, look for nested blocks, e.g.:
- //
- //
- // tags for inner block must be indented.
- //
- //
- //
- // The outermost tags must start at the left margin for this to match, and
- // the inner nested divs must be indented.
- // We need to do this before the next, more liberal match, because the next
- // match will start at the first `
- *
- * Based by a filter by Matthew Wickline, posted to BBEdit-Talk.
- * With some optimizations by Milian Wolff.
- */
-Markdown_Parser.prototype.encodeEmailAddress = function(addr) {
- if('undefined' === typeof arguments.callee.crctable) {
- arguments.callee.crctable =
- "00000000 77073096 EE0E612C 990951BA 076DC419 706AF48F E963A535 9E6495A3 " +
- "0EDB8832 79DCB8A4 E0D5E91E 97D2D988 09B64C2B 7EB17CBD E7B82D07 90BF1D91 " +
- "1DB71064 6AB020F2 F3B97148 84BE41DE 1ADAD47D 6DDDE4EB F4D4B551 83D385C7 " +
- "136C9856 646BA8C0 FD62F97A 8A65C9EC 14015C4F 63066CD9 FA0F3D63 8D080DF5 " +
- "3B6E20C8 4C69105E D56041E4 A2677172 3C03E4D1 4B04D447 D20D85FD A50AB56B " +
- "35B5A8FA 42B2986C DBBBC9D6 ACBCF940 32D86CE3 45DF5C75 DCD60DCF ABD13D59 " +
- "26D930AC 51DE003A C8D75180 BFD06116 21B4F4B5 56B3C423 CFBA9599 B8BDA50F " +
- "2802B89E 5F058808 C60CD9B2 B10BE924 2F6F7C87 58684C11 C1611DAB B6662D3D " +
- "76DC4190 01DB7106 98D220BC EFD5102A 71B18589 06B6B51F 9FBFE4A5 E8B8D433 " +
- "7807C9A2 0F00F934 9609A88E E10E9818 7F6A0DBB 086D3D2D 91646C97 E6635C01 " +
- "6B6B51F4 1C6C6162 856530D8 F262004E 6C0695ED 1B01A57B 8208F4C1 F50FC457 " +
- "65B0D9C6 12B7E950 8BBEB8EA FCB9887C 62DD1DDF 15DA2D49 8CD37CF3 FBD44C65 " +
- "4DB26158 3AB551CE A3BC0074 D4BB30E2 4ADFA541 3DD895D7 A4D1C46D D3D6F4FB " +
- "4369E96A 346ED9FC AD678846 DA60B8D0 44042D73 33031DE5 AA0A4C5F DD0D7CC9 " +
- "5005713C 270241AA BE0B1010 C90C2086 5768B525 206F85B3 B966D409 CE61E49F " +
- "5EDEF90E 29D9C998 B0D09822 C7D7A8B4 59B33D17 2EB40D81 B7BD5C3B C0BA6CAD " +
- "EDB88320 9ABFB3B6 03B6E20C 74B1D29A EAD54739 9DD277AF 04DB2615 73DC1683 " +
- "E3630B12 94643B84 0D6D6A3E 7A6A5AA8 E40ECF0B 9309FF9D 0A00AE27 7D079EB1 " +
- "F00F9344 8708A3D2 1E01F268 6906C2FE F762575D 806567CB 196C3671 6E6B06E7 " +
- "FED41B76 89D32BE0 10DA7A5A 67DD4ACC F9B9DF6F 8EBEEFF9 17B7BE43 60B08ED5 " +
- "D6D6A3E8 A1D1937E 38D8C2C4 4FDFF252 D1BB67F1 A6BC5767 3FB506DD 48B2364B " +
- "D80D2BDA AF0A1B4C 36034AF6 41047A60 DF60EFC3 A867DF55 316E8EEF 4669BE79 " +
- "CB61B38C BC66831A 256FD2A0 5268E236 CC0C7795 BB0B4703 220216B9 5505262F " +
- "C5BA3BBE B2BD0B28 2BB45A92 5CB36A04 C2D7FFA7 B5D0CF31 2CD99E8B 5BDEAE1D " +
- "9B64C2B0 EC63F226 756AA39C 026D930A 9C0906A9 EB0E363F 72076785 05005713 " +
- "95BF4A82 E2B87A14 7BB12BAE 0CB61B38 92D28E9B E5D5BE0D 7CDCEFB7 0BDBDF21 " +
- "86D3D2D4 F1D4E242 68DDB3F8 1FDA836E 81BE16CD F6B9265B 6FB077E1 18B74777 " +
- "88085AE6 FF0F6A70 66063BCA 11010B5C 8F659EFF F862AE69 616BFFD3 166CCF45 " +
- "A00AE278 D70DD2EE 4E048354 3903B3C2 A7672661 D06016F7 4969474D 3E6E77DB " +
- "AED16A4A D9D65ADC 40DF0B66 37D83BF0 A9BCAE53 DEBB9EC5 47B2CF7F 30B5FFE9 " +
- "BDBDF21C CABAC28A 53B39330 24B4A3A6 BAD03605 CDD70693 54DE5729 23D967BF " +
- "B3667A2E C4614AB8 5D681B02 2A6F2B94 B40BBE37 C30C8EA1 5A05DF1B 2D02EF8D".split(' ');
- }
- var crctable = arguments.callee.crctable;
- function _crc32(str) {
- var crc = 0;
- crc = crc ^ (-1);
- for (var i = 0; i < str.length; ++i) {
- var y = (crc ^ str.charCodeAt(i)) & 0xff;
- var x = "0x" + crctable[y];
- crc = (crc >>> 8) ^ x;
- }
- return (crc ^ (-1)) >>> 0;
- }
-
- addr = "mailto:" + addr;
- var chars = [];
- var i;
- for(i = 0; i < addr.length; i++) {
- chars.push(addr.charAt(i));
- }
- var seed = Math.floor(Math.abs(_crc32(addr) / addr.length)); // # Deterministic seed.
-
- for(i = 0; i < chars.length; i++) {
- var c = chars[i];
- var ord = c.charCodeAt(0);
- // Ignore non-ascii chars.
- if(ord < 128) {
- var r = (seed * (1 + i)) % 100; // Pseudo-random function.
- // roughly 10% raw, 45% hex, 45% dec
- // '@' *must* be encoded. I insist.
- if(r > 90 && c != '@') { /* do nothing */ }
- else if(r < 45) { chars[i] = '&#x' + ord.toString(16) + ';'; }
- else { chars[i] = '&#' + ord.toString(10) + ';'; }
- }
- }
-
- addr = chars.join('');
- var text = chars.splice(7, chars.length - 1).join(''); // text without `mailto:`
- addr = "" + text + "";
-
- return addr;
-};
-
-/**
- * Take the string $str and parse it into tokens, hashing embeded HTML,
- * escaped characters and handling code spans.
-*/
-Markdown_Parser.prototype.parseSpan = function(str) {
- var output = '';
-
- var span_re = new RegExp(
- '(' +
- '\\\\' + this.escape_chars_re +
- '|' +
- // This expression is too difficult for JS: '(?' + // comment
- '|' +
- '<\\?.*?\\?>|<%.*?%>' + // processing instruction
- '|' +
- '<[/!$]?[-a-zA-Z0-9:_]+' + // regular tags
- '(?:' +
- '\\s' +
- '(?:[^"\'>]+|"[^"]*"|\'[^\']*\')*' +
- ')?' +
- '>'
- )) +
- ')'
- );
-
- while(1) {
- //
- // Each loop iteration seach for either the next tag, the next
- // openning code span marker, or the next escaped character.
- // Each token is then passed to handleSpanToken.
- //
- var parts = str.match(span_re); //PREG_SPLIT_DELIM_CAPTURE
- if(parts) {
- if(RegExp.leftContext) {
- output += RegExp.leftContext;
- }
- // Back quote but after backslash is to be ignored.
- if(RegExp.lastMatch.charAt(0) == "`" &&
- RegExp.leftContext.charAt(RegExp.leftContext.length - 1) == "\\"
- ) {
- output += RegExp.lastMatch;
- str = RegExp.rightContext;
- continue;
- }
- var r = this.handleSpanToken(RegExp.lastMatch, RegExp.rightContext);
- output += r[0];
- str = r[1];
- }
- else {
- output += str;
- break;
- }
- }
- return output;
-};
-
-
-/**
- * Handle $token provided by parseSpan by determining its nature and
- * returning the corresponding value that should replace it.
-*/
-Markdown_Parser.prototype.handleSpanToken = function(token, str) {
- //console.log([token, str]);
- switch (token.charAt(0)) {
- case "\\":
- return [this.hashPart("&#" + token.charCodeAt(1) + ";"), str];
- case "`":
- // Search for end marker in remaining text.
- if (str.match(new RegExp('^([\\s\\S]*?[^`])' + this._php_preg_quote(token) + '(?!`)([\\s\\S]*)$', 'm'))) {
- var code = RegExp.$1;
- str = RegExp.$2;
- var codespan = this.makeCodeSpan(code);
- return [this.hashPart(codespan), str];
- }
- return [token, str]; // return as text since no ending marker found.
- default:
- return [this.hashPart(token), str];
- }
-};
-
-/**
- * Remove one level of line-leading tabs or spaces
- */
-Markdown_Parser.prototype.outdent = function(text) {
- return text.replace(new RegExp('^(\\t|[ ]{1,' + this.tab_width + '})', 'mg'), '');
-};
-
-
-//# String length function for detab. `_initDetab` will create a function to
-//# hanlde UTF-8 if the default function does not exist.
-//var $utf8_strlen = 'mb_strlen';
-
-/**
- * Replace tabs with the appropriate amount of space.
- */
-Markdown_Parser.prototype.detab = function(text) {
- // For each line we separate the line in blocks delemited by
- // tab characters. Then we reconstruct every line by adding the
- // appropriate number of space between each blocks.
- var self = this;
- return text.replace(/^.*\t.*$/mg, function(line) {
- //$strlen = $this->utf8_strlen; # strlen function for UTF-8.
- // Split in blocks.
- var blocks = line.split("\t");
- // Add each blocks to the line.
- line = blocks.shift(); // Do not add first block twice.
- for(var i = 0; i < blocks.length; i++) {
- var block = blocks[i];
- // Calculate amount of space, insert spaces, insert block.
- var amount = self.tab_width - line.length % self.tab_width;
- line += self._php_str_repeat(" ", amount) + block;
- }
- return line;
- });
-};
-
-/**
- * Swap back in all the tags hashed by _HashHTMLBlocks.
- */
-Markdown_Parser.prototype.unhash = function(text) {
- var self = this;
- return text.replace(/(.)\x1A[0-9]+\1/g, function(match) {
- return self.html_hashes[match];
- });
-};
-/*-------------------------------------------------------------------------*/
-
-/**
- * Constructor function. Initialize the parser object.
- */
-function MarkdownExtra_Parser() {
-
- // Prefix for footnote ids.
- this.fn_id_prefix = "";
-
- // Optional title attribute for footnote links and backlinks.
- this.fn_link_title = MARKDOWN_FN_LINK_TITLE;
- this.fn_backlink_title = MARKDOWN_FN_BACKLINK_TITLE;
-
- // Optional class attribute for footnote links and backlinks.
- this.fn_link_class = MARKDOWN_FN_LINK_CLASS;
- this.fn_backlink_class = MARKDOWN_FN_BACKLINK_CLASS;
-
- // Predefined abbreviations.
- this.predef_abbr = {};
-
- // Extra variables used during extra transformations.
- this.footnotes = {};
- this.footnotes_ordered = [];
- this.abbr_desciptions = {};
- this.abbr_word_re = '';
-
- // Give the current footnote number.
- this.footnote_counter = 1;
-
- // ### HTML Block Parser ###
-
- // Tags that are always treated as block tags:
- this.block_tags_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|form|fieldset|iframe|hr|legend';
-
- // Tags treated as block tags only if the opening tag is alone on it's line:
- this.context_block_tags_re = 'script|noscript|math|ins|del';
-
- // Tags where markdown="1" default to span mode:
- this.contain_span_tags_re = 'p|h[1-6]|li|dd|dt|td|th|legend|address';
-
- // Tags which must not have their contents modified, no matter where
- // they appear:
- this.clean_tags_re = 'script|math';
-
- // Tags that do not need to be closed.
- this.auto_close_tags_re = 'hr|img';
-
- // Redefining emphasis markers so that emphasis by underscore does not
- // work in the middle of a word.
- this.em_relist = [
- ['' , '(?:(^|[^\\*])(\\*)(?=[^\\*])|(^|[^a-zA-Z0-9_])(_)(?=[^_]))(?=\\S|$)(?![\\.,:;]\\s)'],
- ['*', '((?:\\S|^)[^\\*])(\\*)(?!\\*)'],
- ['_', '((?:\\S|^)[^_])(_)(?![a-zA-Z0-9_])']
- ];
- this.strong_relist = [
- ['' , '(?:(^|[^\\*])(\\*\\*)(?=[^\\*])|(^|[^a-zA-Z0-9_])(__)(?=[^_]))(?=\\S|$)(?![\\.,:;]\\s)'],
- ['**', '((?:\\S|^)[^\\*])(\\*\\*)(?!\\*)'],
- ['__', '((?:\\S|^)[^_])(__)(?![a-zA-Z0-9_])']
- ];
- this.em_strong_relist = [
- ['' , '(?:(^|[^\\*])(\\*\\*\\*)(?=[^\\*])|(^|[^a-zA-Z0-9_])(___)(?=[^_]))(?=\\S|$)(?![\\.,:;]\\s)'],
- ['***', '((?:\\S|^)[^\\*])(\\*\\*\\*)(?!\\*)'],
- ['___', '((?:\\S|^)[^_])(___)(?![a-zA-Z0-9_])']
- ];
-
- // Add extra escapable characters before parent constructor
- // initialize the table.
- this.escape_chars += ':|';
-
- // Insert extra document, block, and span transformations.
- // Parent constructor will do the sorting.
- this.document_gamut.push(['doFencedCodeBlocks', 5]);
- this.document_gamut.push(['stripFootnotes', 15]);
- this.document_gamut.push(['stripAbbreviations', 25]);
- this.document_gamut.push(['appendFootnotes', 50]);
-
- this.block_gamut.push(['doFencedCodeBlocks', 5]);
- this.block_gamut.push(['doTables', 15]);
- this.block_gamut.push(['doDefLists', 45]);
-
- this.span_gamut.push(['doFootnotes', 5]);
- this.span_gamut.push(['doAbbreviations', 70]);
-}
-MarkdownExtra_Parser.prototype = new Markdown_Parser();
-
-/**
- * Setting up Extra-specific variables.
- */
-MarkdownExtra_Parser.prototype.setup = function() {
- this.constructor.prototype.setup.call(this);
-
- this.footnotes = {};
- this.footnotes_ordered = [];
- this.abbr_desciptions = {};
- this.abbr_word_re = '';
- this.footnote_counter = 1;
-
- for(var abbr_word in this.predef_abbr) {
- var abbr_desc = this.predef_abbr[abbr_word];
- if(this.abbr_word_re != '') {
- this.abbr_word_re += '|';
- }
- this.abbr_word_re += this._php_preg_quote(abbr_word); // ?? str -> re?
- this.abbr_desciptions[abbr_word] = this._php_trim(abbr_desc);
- }
-};
-
-/**
- * Clearing Extra-specific variables.
- */
-MarkdownExtra_Parser.prototype.teardown = function() {
- this.footnotes = {};
- this.footnotes_ordered = [];
- this.abbr_desciptions = {};
- this.abbr_word_re = '';
-
- this.constructor.prototype.teardown.call(this);
-};
-
-
-/**
- * Hashify HTML Blocks and "clean tags".
- *
- * We only want to do this for block-level HTML tags, such as headers,
- * lists, and tables. That's because we still want to wrap
s around
- * "paragraphs" that are wrapped in non-block-level tags, such as anchors,
- * phrase emphasis, and spans. The list of tags we're looking for is
- * hard-coded.
- *
- * This works by calling _HashHTMLBlocks_InMarkdown, which then calls
- * _HashHTMLBlocks_InHTML when it encounter block tags. When the markdown="1"
- * attribute is found whitin a tag, _HashHTMLBlocks_InHTML calls back
- * _HashHTMLBlocks_InMarkdown to handle the Markdown syntax within the tag.
- * These two functions are calling each other. It's recursive!
- */
-MarkdownExtra_Parser.prototype.hashHTMLBlocks = function(text) {
- //
- // Call the HTML-in-Markdown hasher.
- //
- var r = this._hashHTMLBlocks_inMarkdown(text);
- text = r[0];
-
- return text;
-};
-
-/**
- * Parse markdown text, calling _HashHTMLBlocks_InHTML for block tags.
- *
- * * $indent is the number of space to be ignored when checking for code
- * blocks. This is important because if we don't take the indent into
- * account, something like this (which looks right) won't work as expected:
- *
- *
- *
- * Hello World. <-- Is this a Markdown code block or text?
- *
<-- Is this a Markdown code block or a real tag?
- *
- *
- * If you don't like this, just don't indent the tag on which
- * you apply the markdown="1" attribute.
- *
- * * If $enclosing_tag_re is not empty, stops at the first unmatched closing
- * tag with that name. Nested tags supported.
- *
- * * If $span is true, text inside must treated as span. So any double
- * newline will be replaced by a single newline so that it does not create
- * paragraphs.
- *
- * Returns an array of that form: ( processed text , remaining text )
- */
-MarkdownExtra_Parser.prototype._hashHTMLBlocks_inMarkdown = function(text, indent, enclosing_tag_re, span) {
- if('undefined' === typeof indent) { indent = 0; }
- if('undefined' === typeof enclosing_tag_re) { enclosing_tag_re = ''; }
- if('undefined' === typeof span) { span = false; }
-
- if(text === '') { return ['', '']; }
-
- var matches;
-
- // Regex to check for the presense of newlines around a block tag.
- var newline_before_re = /(?:^\n?|\n\n)*$/;
- var newline_after_re = new RegExp(
- '^' + // Start of text following the tag.
- '([ ]*)?' + // Optional comment.
- '[ ]*\\n' , // Must be followed by newline.
- 'm'
- );
-
- // Regex to match any tag.
- var block_tag_re = new RegExp(
- '(' + // $2: Capture hole tag.
- '`)
- '\'.*?\'|' + // Single quotes (can contain `>`)
- '.+?' + // Anything but quotes and `>`.
- ')*?' +
- ')?' +
- '>' + // End of tag.
- '|' +
- '' + // HTML Comment
- '|' +
- '<\\?.*?\\?>|<%.*?%>' + // Processing instruction
- '|' +
- '' + // CData Block
- '|' +
- // Code span marker
- '`+' +
- ( !span ? // If not in span.
- '|' +
- // Indented code block
- '(?:^[ ]*\\n|^|\\n[ ]*\\n)' +
- '[ ]{' + (indent + 4) + '}[^\\n]*\\n' +
- '(?=' +
- '(?:[ ]{' + (indent + 4) + '}[^\\n]*|[ ]*)\\n' +
- ')*' +
- '|' +
- // Fenced code block marker
- '(?:^|\\n)' +
- '[ ]{0,' + indent + '}~~~+[ ]*\\n'
- : '' ) + // # End (if not is span).
- ')',
- 'm'
- );
-
- var depth = 0; // Current depth inside the tag tree.
- var parsed = ""; // Parsed text that will be returned.
-
- //
- // Loop through every tag until we find the closing tag of the parent
- // or loop until reaching the end of text if no parent tag specified.
- //
- do {
- //
- // Split the text using the first $tag_match pattern found.
- // Text before pattern will be first in the array, text after
- // pattern will be at the end, and between will be any catches made
- // by the pattern.
- //
- var parts_available = text.match(block_tag_re); //PREG_SPLIT_DELIM_CAPTURE
- var parts;
- if(!parts_available) {
- parts = [text];
- }
- else {
- parts = [RegExp.leftContext, RegExp.lastMatch, RegExp.rightContext];
- }
-
- // If in Markdown span mode, add a empty-string span-level hash
- // after each newline to prevent triggering any block element.
- if(span) {
- var _void = this.hashPart("", ':');
- var newline = _void + "\n";
- parts[0] = _void + parts[0].replace(/\n/g, newline) + _void;
- }
-
- parsed += parts[0]; // Text before current tag.
-
- // If end of $text has been reached. Stop loop.
- if(!parts_available) {
- text = "";
- break;
- }
-
- var tag = parts[1]; // Tag to handle.
- text = parts[2]; // Remaining text after current tag.
- var tag_re = this._php_preg_quote(tag); // For use in a regular expression.
-
- var t;
- var block_text;
- //
- // Check for: Code span marker
- //
- if (tag.charAt(0) == "`") {
- // Find corresponding end marker.
- tag_re = this._php_preg_quote(tag);
- if (
- text.substr(1).indexOf('`') != -1 && // [portiong note] To avoid JS's RegExp infinity loop.
- (matches = text.match(new RegExp('^(.+?|\\n[?!\\n])*?[^`]' + tag_re + '[?!`]')))
- ) {
- // End marker found: pass text unchanged until marker.
- parsed += tag + matches[0];
- text = text.substr(matches[0].length);
- }
- else {
- // Unmatched marker: just skip it.
- parsed += tag;
- }
- }
- //
- // Check for: Fenced code block marker.
- //
- else if(tag.match(new RegExp('^\\n?[ ]{0,' + (indent + 3) + '}~'))) {
- // Fenced code block marker: find matching end marker.
- tag_re = this._php_preg_quote(this._php_trim(tag));
- if(matches = text.match(new RegExp('^(?:.*\\n)+?[ ]{0,' + indent + '}' + tag_re + '[ ]*\\n'))) {
- // End marker found: pass text unchanged until marker.
- parsed += tag + matches[0];
- text = text.substr(matches[0].length);
- }
- else {
- // No end marker: just skip it.
- parsed += tag;
- }
- }
- //
- // Check for: Indented code block.
- //
- else if(tag.charAt(0) == "\n" || tag.charAt(0) == " ") {
- // Indented code block: pass it unchanged, will be handled
- // later.
- parsed += tag;
- }
- //
- // Check for: Opening Block level tag or
- // Opening Context Block tag (like ins and del)
- // used as a block tag (tag is alone on it's line).
- //
- else if (tag.match(new RegExp('^<(?:' + this.block_tags_re + ')\\b')) ||
- (
- tag.match(new RegExp('^<(?:' + this.context_block_tags_re + ')\\b')) &&
- parsed.match(newline_before_re) &&
- text.match(newline_after_re)
- )
- ) {
- // Need to parse tag and following text using the HTML parser.
- t = this._hashHTMLBlocks_inHTML(tag + text, this.hashBlock, true);
- block_text = t[0];
- text = t[1];
-
- // Make sure it stays outside of any paragraph by adding newlines.
- parsed += "\n\n" + block_text + "\n\n";
- }
- //
- // Check for: Clean tag (like script, math)
- // HTML Comments, processing instructions.
- //
- else if(
- tag.match(new RegExp('^<(?:' + this.clean_tags_re + ')\\b')) ||
- tag.charAt(1) == '!' || tag.charAt(1) == '?'
- ) {
- // Need to parse tag and following text using the HTML parser.
- // (don't check for markdown attribute)
- t = this._hashHTMLBlocks_inHTML(tag + text, this.hashClean, false);
- block_text = t[0];
- text = t[1];
-
- parsed += block_text;
- }
- //
- // Check for: Tag with same name as enclosing tag.
- //
- else if (enclosing_tag_re !== '' &&
- // Same name as enclosing tag.
- tag.match(new RegExp('^= 0);
-
- return [parsed, text];
-};
-
-/**
- * Parse HTML, calling _HashHTMLBlocks_InMarkdown for block tags.
- *
- * * Calls $hash_method to convert any blocks.
- * * Stops when the first opening tag closes.
- * * $md_attr indicate if the use of the `markdown="1"` attribute is allowed.
- * (it is not inside clean tags)
- *
- * Returns an array of that form: ( processed text , remaining text )
- */
-MarkdownExtra_Parser.prototype._hashHTMLBlocks_inHTML = function(text, hash_method, md_attr) {
- if(text === '') return ['', ''];
-
- var matches;
-
- // Regex to match `markdown` attribute inside of a tag.
- var markdown_attr_re = new RegExp(
- '\\s*' + // Eat whitespace before the `markdown` attribute
- 'markdown' +
- '\\s*=\\s*' +
- '(?:' +
- '(["\'])' + // $1: quote delimiter
- '(.*?)' + // $2: attribute value
- '\\1' + // matching delimiter
- '|' +
- '([^\\s>]*)' + // $3: unquoted attribute value
- ')' +
- '()' // $4: make $3 always defined (avoid warnings)
- );
-
- // Regex to match any tag.
- var tag_re = new RegExp(
- '(' + // $2: Capture hole tag.
- '`)
- '\'.*?\'|' + // Single quotes (can contain `>`)
- '.+?' + // Anything but quotes and `>`.
- ')*?' +
- ')?' +
- '>' + // End of tag.
- '|' +
- '' + // HTML Comment
- '|' +
- '<\\?.*?\\?>|<%.*?%>' + // Processing instruction
- '|' +
- '' + // CData Block
- ')'
- );
-
- var original_text = text; // Save original text in case of faliure.
-
- var depth = 0; // Current depth inside the tag tree.
- var block_text = ""; // Temporary text holder for current text.
- var parsed = ""; // Parsed text that will be returned.
-
- //
- // Get the name of the starting tag.
- // (This pattern makes $base_tag_name_re safe without quoting.)
- //
- var base_tag_name_re = "";
- if(matches = text.match(/^<([\w:$]*)\b/)) {
- base_tag_name_re = matches[1];
- }
-
- //
- // Loop through every tag until we find the corresponding closing tag.
- //
- do {
- //
- // Split the text using the first $tag_match pattern found.
- // Text before pattern will be first in the array, text after
- // pattern will be at the end, and between will be any catches made
- // by the pattern.
- //
- var parts_available = text.match(tag_re); //PREG_SPLIT_DELIM_CAPTURE);
- // If end of $text has been reached. Stop loop.
- if(!parts_available) {
- //
- // End of $text reached with unbalenced tag(s).
- // In that case, we return original text unchanged and pass the
- // first character as filtered to prevent an infinite loop in the
- // parent function.
- //
- return [original_text.charAt(0), original_text.substr(1)];
- }
- var parts = [RegExp.leftContext, RegExp.lastMatch, RegExp.rightContext];
-
- block_text += parts[0]; // Text before current tag.
- var tag = parts[1]; // Tag to handle.
- text = parts[2]; // Remaining text after current tag.
-
- //
- // Check for: Auto-close tag (like )
- // Comments and Processing Instructions.
- //
- if(tag.match(new RegExp('^ 0) {
- block_text = block_text.replace(new RegExp('/^[ ]{1,' + indent + '}', 'm'), "");
- }
-
- // Append tag content to parsed text.
- if (!span_mode) { parsed += "\n\n" + block_text + "\n\n"; }
- else { parsed += block_text; }
-
- // Start over a new block.
- block_text = "";
- }
- else {
- block_text += tag;
- }
- }
-
- } while(depth > 0);
-
- //
- // Hash last block text that wasn't processed inside the loop.
- //
- parsed += hash_method.call(this, block_text);
-
- return [parsed, text];
-};
-
-
-/**
- * Called whenever a tag must be hashed when a function insert a "clean" tag
- * in $text, it pass through this function and is automaticaly escaped,
- * blocking invalid nested overlap.
- */
-MarkdownExtra_Parser.prototype.hashClean = function(text) {
- return this.hashPart(text, 'C');
-};
-
-
-/**
- * Redefined to add id attribute support.
- */
-MarkdownExtra_Parser.prototype.doHeaders = function(text) {
- var self = this;
-
- function _doHeaders_attr(attr) {
- if('undefined' === typeof attr || attr == "") { return ""; }
- return " id=\"" + attr + "\"";
- }
-
- // Setext-style headers:
- // Header 1 {#header1}
- // ========
- //
- // Header 2 {#header2}
- // --------
-
- text = text.replace(new RegExp(
- '(^.+?)' + // $1: Header text
- '(?:[ ]+\\{\\#([-_:a-zA-Z0-9]+)\\})?' + // $2: Id attribute
- '[ ]*\\n(=+|-+)[ ]*\\n+', // $3: Header footer
- 'mg'
- ), function(match, span, id, line) {
- //console.log(match);
- if(line == '-' && span.match(/^- /)) {
- return match;
- }
- var level = line.charAt(0) == '=' ? 1 : 2;
- var attr = _doHeaders_attr(id);
- var block = "" + self.runSpanGamut(span) + "";
- return "\n" + self.hashBlock(block) + "\n\n";
- });
-
- // atx-style headers:
- // # Header 1 {#header1}
- // ## Header 2 {#header2}
- // ## Header 2 with closing hashes ## {#header3}
- // ...
- // ###### Header 6 {#header2}
-
- text = text.replace(new RegExp(
- '^(\\#{1,6})' + // $1 = string of #\'s
- '[ ]*' +
- '(.+?)' + // $2 = Header text
- '[ ]*' +
- '\\#*' + // optional closing #\'s (not counted)
- '(?:[ ]+\\{\\#([-_:a-zA-Z0-9]+)\\})?' + // id attribute
- '\\n+',
- 'mg'
- ), function(match, hashes, span, id) {
- //console.log(match);
- var level = hashes.length;
- var attr = _doHeaders_attr(id);
- var block = "" + self.runSpanGamut(span) + "";
- return "\n" + self.hashBlock(block) + "\n\n";
- });
-
- return text;
-};
-
-/**
- * Form HTML tables.
- */
-MarkdownExtra_Parser.prototype.doTables = function(text) {
- var self = this;
-
- var less_than_tab = this.tab_width - 1;
-
- var _doTable_callback = function(match, head, underline, content) {
- //console.log(match);
- // Remove any tailing pipes for each line.
- head = head.replace(/[|] *$/m, '');
- underline = underline.replace(/[|] *$/m, '');
- content = content.replace(/[|] *$/m, '');
-
- var attr = [];
-
- // Reading alignement from header underline.
- var separators = underline.split(/[ ]*[|][ ]*/);
- var n;
- for(n = 0; n < separators.length; n++) {
- var s = separators[n];
- if (s.match(/^ *-+: *$/)) { attr[n] = ' align="right"'; }
- else if (s.match(/^ *:-+: *$/)) { attr[n] = ' align="center"'; }
- else if (s.match(/^ *:-+ *$/)) { attr[n] = ' align="left"'; }
- else { attr[n] = ''; }
- }
-
- // Parsing span elements, including code spans, character escapes,
- // and inline HTML tags, so that pipes inside those gets ignored.
- head = self.parseSpan(head);
- var headers = head.split(/ *[|] */);
- var col_count = headers.length;
-
- // Write column headers.
- var text = "
\n";
- text += "\n";
- text += "
\n";
- for(n = 0; n < headers.length; n++) {
- var header = headers[n];
- text += " " + self.runSpanGamut(self._php_trim(header)) + "\n";
- }
- text += "
\n";
- text += "\n";
-
- // Split content by row.
- var rows = self._php_trim(content, "\n").split("\n");
-
- text += "\n";
- for(var i = 0; i < rows.length; i++) {
- var row = rows[i];
- // Parsing span elements, including code spans, character escapes,
- // and inline HTML tags, so that pipes inside those gets ignored.
- row = self.parseSpan(row);
-
- // Split row by cell.
- var row_cells = row.split(/ *[|] */, col_count);
- while(row_cells.length < col_count) { row_cells.push(''); }
-
- text += "
\n";
- for(n = 0; n < row_cells.length; n++) {
- var cell = row_cells[n];
- text += " " + self.runSpanGamut(self._php_trim(cell)) + "\n";
- }
- text += "
\n";
- }
- text += "\n";
- text += "
";
-
- return self.hashBlock(text) + "\n";
- };
-
- text = this.__wrapSTXETX__(text);
-
- //
- // Find tables with leading pipe.
- //
- // | Header 1 | Header 2
- // | -------- | --------
- // | Cell 1 | Cell 2
- // | Cell 3 | Cell 4
- //
- text = text.replace(new RegExp(
- '^' + // Start of a line
- '[ ]{0,' + less_than_tab + '}' + // Allowed whitespace.
- '[|]' + // Optional leading pipe (present)
- '(.+)\\n' + // $1: Header row (at least one pipe)
-
- '[ ]{0,' + less_than_tab + '}' + // Allowed whitespace.
- '[|]([ ]*[-:]+[-| :]*)\\n' + // $2: Header underline
-
- '(' + // $3: Cells
- '(?:' +
- '[ ]*' + // Allowed whitespace.
- '[|].*\\n' + // Row content.
- ')*' +
- ')' +
- '(?=\\n|\\x03)' , // Stop at final double newline.
- 'mg'
- ), function(match, head, underline, content) {
- // Remove leading pipe for each row.
- content = content.replace(/^ *[|]/m, '');
-
- return _doTable_callback.call(this, match, head, underline, content);
- });
-
- //
- // Find tables without leading pipe.
- //
- // Header 1 | Header 2
- // -------- | --------
- // Cell 1 | Cell 2
- // Cell 3 | Cell 4
- //
- text = text.replace(new RegExp(
- '^' + // Start of a line
- '[ ]{0,' + less_than_tab + '}' + // Allowed whitespace.
- '(\\S.*[|].*)\\n' + // $1: Header row (at least one pipe)
-
- '[ ]{0,' + less_than_tab + '}' + // Allowed whitespace.
- '([-:]+[ ]*[|][-| :]*)\\n' + // $2: Header underline
-
- '(' + // $3: Cells
- '(?:' +
- '.*[|].*\\n' + // Row content
- ')*' +
- ')' +
- '(?=\\n|\\x03)' , // Stop at final double newline.
- 'mg'
- ), _doTable_callback);
-
- text = this.__unwrapSTXETX__(text);
-
- return text;
-};
-
-/**
- * Form HTML definition lists.
- */
-MarkdownExtra_Parser.prototype.doDefLists = function(text) {
- var self = this;
-
- var less_than_tab = this.tab_width - 1;
-
- // Re-usable pattern to match any entire dl list:
- var whole_list_re = '(?:' +
- '(' + // $1 = whole list
- '(' + // $2
- '[ ]{0,' + less_than_tab + '}' +
- '((?:[ \\t]*\\S.*\\n)+)' + // $3 = defined term
- // [porting note] Original regex from PHP is
- // (?>.*\S.*\n), which matches a line with at
- // least one non-space character. Change the
- // first .* to [ \t]* stops unneccessary
- // backtracking hence improves performance
- '\\n?' +
- '[ ]{0,' + less_than_tab + '}:[ ]+' + // colon starting definition
- ')' +
- '([\\s\\S]+?)' +
- '(' + // $4
- '(?=\\0x03)' + // \z
- '|' +
- '(?=' + // [porting note] Our regex will consume leading
- // newline characters so we will leave the newlines
- // here for the next definition
- '\\n{2,}' +
- '(?=\\S)' +
- '(?!' + // Negative lookahead for another term
- '[ ]{0,' + less_than_tab + '}' +
- '(?:\\S.*\\n)+?' + // defined term
- '\\n?' +
- '[ ]{0,' + less_than_tab + '}:[ ]+' + // colon starting definition
- ')' +
- '(?!' + // Negative lookahead for another definition
- '[ ]{0,' + less_than_tab + '}:[ ]+' + // colon starting definition
- ')' +
- ')' +
- ')' +
- ')' +
- ')'; // mx
-
- text = this.__wrapSTXETX__(text);
- text = text.replace(new RegExp(
- '(\\x02\\n?|\\n\\n)' +
- whole_list_re, 'mg'
- ), function(match, pre, list) {
- //console.log(match);
- // Re-usable patterns to match list item bullets and number markers:
- // [portiong note] changed to list = $2 in order to reserve previously \n\n.
-
- // Turn double returns into triple returns, so that we can make a
- // paragraph for the last item in a list, if necessary:
- var result = self._php_trim(self.processDefListItems(list));
- result = "
\n" + result + "\n
";
- return pre + self.hashBlock(result) + "\n\n";
- });
- text = this.__unwrapSTXETX__(text);
-
- return text;
-};
-
-/**
- * Process the contents of a single definition list, splitting it
- * into individual term and definition list items.
- */
-MarkdownExtra_Parser.prototype.processDefListItems = function(list_str) {
- var self = this;
-
- var less_than_tab = this.tab_width - 1;
-
- list_str = this.__wrapSTXETX__(list_str);
-
- // trim trailing blank lines:
- list_str = list_str.replace(/\n{2,}(?=\\x03)/, "\n");
-
- // Process definition terms.
- list_str = list_str.replace(new RegExp(
- '(\\x02\\n?|\\n\\n+)' + // leading line
- '(' + // definition terms = $1
- '[ ]{0,' + less_than_tab + '}' + // leading whitespace
- '(?![:][ ]|[ ])' + // negative lookahead for a definition
- // mark (colon) or more whitespace.
- '(?:\\S.*\\n)+?' + // actual term (not whitespace).
- ')' +
- '(?=\\n?[ ]{0,3}:[ ])' , // lookahead for following line feed
- // with a definition mark.
- 'mg'
- ), function(match, pre, terms_str) {
- // [portiong note] changed to list = $2 in order to reserve previously \n\n.
- var terms = self._php_trim(terms_str).split("\n");
- var text = '';
- for (var i = 0; i < terms.length; i++) {
- var term = terms[i];
- term = self.runSpanGamut(self._php_trim(term));
- text += "\n
" + term + "
";
- }
- return text + "\n";
- });
-
- // Process actual definitions.
- list_str = list_str.replace(new RegExp(
- '\\n(\\n+)?' + // leading line = $1
- '(' + // marker space = $2
- '[ ]{0,' + less_than_tab + '}' + // whitespace before colon
- '[:][ ]+' + // definition mark (colon)
- ')' +
- '([\\s\\S]+?)' + // definition text = $3
- // [porting note] Maybe no trailing
- // newlines in our version, changed the
- // following line from \n+ to \n*.
- '(?=\\n*' + // stop at next definition mark,
- '(?:' + // next term or end of text
- '\\n[ ]{0,' + less_than_tab + '}[:][ ]|' + // [porting note] do not match
- // colon in the middle of a line
- '
tags
- */
-MarkdownExtra_Parser.prototype.formParagraphs = function(text) {
-
- // Strip leading and trailing lines:
- text = this.__wrapSTXETX__(text);
- text = text.replace(/(?:\x02)\n+|\n+(?:\x03)/g, "");
- text = this.__unwrapSTXETX__(text);
-
- var grafs = text.split(/\n{2,}/m);
- //preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
-
- //
- // Wrap
tags and unhashify HTML blocks
- //
- for(var i = 0; i < grafs.length; i++) {
- var value = grafs[i];
- if(value == "") {
- // [porting note]
- // This case is replacement for PREG_SPLIT_NO_EMPTY.
- continue;
- }
- value = this._php_trim(this.runSpanGamut(value));
-
- // Check if this should be enclosed in a paragraph.
- // Clean tag hashes & block tag hashes are left alone.
- var is_p = !value.match(/^B\x1A[0-9]+B|^C\x1A[0-9]+C$/);
-
- if (is_p) {
- value = "
" + value + "
";
- }
- grafs[i] = value;
- }
-
- // Join grafs in one text, then unhash HTML tags.
- text = grafs.join("\n\n");
-
- // Finish by removing any tag hashes still present in $text.
- text = this.unhash(text);
-
- return text;
-};
-
-// ### Footnotes
-
-/**
- * Strips link definitions from text, stores the URLs and titles in
- * hash references.
- */
-MarkdownExtra_Parser.prototype.stripFootnotes = function(text) {
- var self = this;
-
- var less_than_tab = this.tab_width - 1;
-
- // Link defs are in the form: [^id]: url "optional title"
- text = text.replace(new RegExp(
- '^[ ]{0,' + less_than_tab + '}\\[\\^(.+?)\\][ ]?:' + // note_id = $1
- '[ ]*' +
- '\\n?' + // maybe *one* newline
- '(' + // text = $2 (no blank lines allowed)
- '(?:' +
- '.+' + // actual text
- '|' +
- '\\n' + // newlines but
- '(?!\\[\\^.+?\\]:\\s)' + // negative lookahead for footnote marker.
- '(?!\\n+[ ]{0,3}\\S)' + // ensure line is not blank and followed
- // by non-indented content
- ')*' +
- ')',
- "mg"
- ), function(match, m1, m2) {
- var note_id = self.fn_id_prefix + m1;
- self.footnotes[note_id] = self.outdent(m2);
- return ''; //# String that will replace the block
- });
- return text;
-};
-
-/**
- * Replace footnote references in $text [^id] with a special text-token
- * which will be replaced by the actual footnote marker in appendFootnotes.
- */
-MarkdownExtra_Parser.prototype.doFootnotes = function(text) {
- if (!this.in_anchor) {
- text = text.replace(/\[\^(.+?)\]/g, "F\x1Afn:$1\x1A:");
- }
- return text;
-};
-
-/**
- * Append footnote list to text.
- */
-MarkdownExtra_Parser.prototype.appendFootnotes = function(text) {
- var self = this;
-
- var _appendFootnotes_callback = function(match, m1) {
- var node_id = self.fn_id_prefix + m1;
-
- // Create footnote marker only if it has a corresponding footnote *and*
- // the footnote hasn't been used by another marker.
- if (node_id in self.footnotes) {
- // Transfert footnote content to the ordered list.
- self.footnotes_ordered.push([node_id, self.footnotes[node_id]]);
- delete self.footnotes[node_id];
-
- var num = self.footnote_counter++;
- var attr = " rel=\"footnote\"";
- if (self.fn_link_class != "") {
- var classname = self.fn_link_class;
- classname = self.encodeAttribute(classname);
- attr += " class=\"" + classname + "\"";
- }
- if (self.fn_link_title != "") {
- var title = self.fn_link_title;
- title = self.encodeAttribute(title);
- attr += " title=\"" + title +"\"";
- }
-
- attr = attr.replace(/%%/g, num);
- node_id = self.encodeAttribute(node_id);
-
- return "" +
- "" + num + "" +
- "";
- }
-
- return "[^" + m1 + "]";
- };
-
- text = text.replace(/F\x1Afn:(.*?)\x1A:/g, _appendFootnotes_callback);
-
- if (this.footnotes_ordered.length > 0) {
- text += "\n\n";
- text += "
\n";
- text += " 0) {
- var head = this.footnotes_ordered.shift();
- var note_id = head[0];
- var footnote = head[1];
-
- footnote += "\n"; // Need to append newline before parsing.
- footnote = this.runBlockGamut(footnote + "\n");
- footnote = footnote.replace(/F\x1Afn:(.*?)\x1A:/g, _appendFootnotes_callback);
-
- attr = attr.replace(/%%/g, ++num);
- note_id = this.encodeAttribute(note_id);
-
- // Add backlink to last paragraph; create new paragraph if needed.
- var backlink = "↩";
- if (footnote.match(/<\/p>$/)) {
- footnote = footnote.substr(0, footnote.length - 4) + " " + backlink + "";
- } else {
- footnote += "\n\n
" + backlink + "
";
- }
-
- text += "
\n";
- text += footnote + "\n";
- text += "
\n\n";
- }
-
- text += "\n";
- text += "
";
- }
- return text;
-};
-
-//### Abbreviations ###
-
-/**
- * Strips abbreviations from text, stores titles in hash references.
- */
-MarkdownExtra_Parser.prototype.stripAbbreviations = function(text) {
- var self = this;
-
- var less_than_tab = this.tab_width - 1;
-
- // Link defs are in the form: [id]*: url "optional title"
- text = text.replace(new RegExp(
- '^[ ]{0,' + less_than_tab + '}\\*\\[(.+?)\\][ ]?:' + // abbr_id = $1
- '(.*)', // text = $2 (no blank lines allowed)
- "mg"
- ), function(match, abbr_word, abbr_desc) {
- if (self.abbr_word_re != '') {
- self.abbr_word_re += '|';
- }
- self.abbr_word_re += self._php_preg_quote(abbr_word);
- self.abbr_desciptions[abbr_word] = self._php_trim(abbr_desc);
- return ''; // String that will replace the block
- });
- return text;
-};
-
-/**
- * Find defined abbreviations in text and wrap them in elements.
- */
-MarkdownExtra_Parser.prototype.doAbbreviations = function(text) {
- var self = this;
-
- if (this.abbr_word_re) {
- // cannot use the /x modifier because abbr_word_re may
- // contain significant spaces:
- text = text.replace(new RegExp(
- '(^|[^\\w\\x1A])' +
- '(' + this.abbr_word_re + ')' +
- '(?![\\w\\x1A])'
- , 'g'
- ), function(match, prev, abbr) {
- if (abbr in self.abbr_desciptions) {
- var desc = self.abbr_desciptions[abbr];
- if (!desc || desc == "") {
- return self.hashPart(prev + "" + abbr + "");
- } else {
- desc = self.encodeAttribute(desc);
- return self.hashPart(prev + "" + abbr + "");
- }
- } else {
- return match;
- }
- });
- }
- return text;
-};
-
-function MarkdownExtraExtended_Parser () {
- this.block_tags_re = 'figure|figcaption|p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|form|fieldset|iframe|hr|legend';
- this.document_gamut.push(['doClearBreaks', 100]);
-}
-MarkdownExtraExtended_Parser.prototype = new MarkdownExtra_Parser();
-
-MarkdownExtraExtended_Parser.prototype.doHardBreaks = function(text) {
- var self = this;
- return text.replace(/ *\n/mg, function(match) {
- //console.log(match);
- return self.hashPart("\\n)+)\\s*([ ]?'
- + '(?:\\((.+?)\\))?'
- + '[ ]*(.+\\n(?:.+\\n)*)'
- + ')+', 'mg'), function (matches, cite, bq) {
- bq = '> ' + bq;
-
- bq = bq.replace(/^[ ]*>[ ]?|^[ ]+$/mg, '');
- bq = self.runBlockGamut(bq); // recurse
-
- bq = bq.replace(/^/mg, " ");
- // These leading spaces cause problem with
content,
- // so we need to fix that:
- bq = bq.replace(/(\\s*
';
-
- return "\n\n" + self.hashBlock(cb) + "\n\n";
- });
- text = this.__unwrapSTXETX__(text);
-
- return text;
-}
-
-/**
- * Export to Node.js
- */
-if (typeof exports != 'undefined') {
- exports.Markdown = Markdown;
- exports.Markdown_Parser = Markdown_Parser;
- exports.MarkdownExtra_Parser = MarkdownExtra_Parser;
- exports.MarkdownExtraExtended_Parser = MarkdownExtraExtended_Parser;
-}
diff --git a/admin/js/typecho.js b/admin/js/typecho.js
index ac9652d0..0a89c27e 100644
--- a/admin/js/typecho.js
+++ b/admin/js/typecho.js
@@ -168,32 +168,6 @@
};
})($);
-(function () {
-
- Typecho.Markdown = function () {
- this.hooks = new Markdown.HookCollection();
- this.hooks.addNoop('postConversion');
- this.lastIt = null;
- };
-
- Typecho.Markdown.prototype.makeHtml = function (text, preview) {
- var self = this;
-
- if (this.lastIt) {
- clearTimeout(this.lastIt);
- this.lastIt = null;
- }
-
- this.lastIt = setTimeout(function () {
- html = MarkdownText(text);
- preview(self.hooks.postConversion(html));
- }, 500);
-
- return false;
- };
-
-})();
-
/**
* TableDnD plug-in for JQuery, allows you to drag and drop table rows
diff --git a/var/MarkdownExtraExtended.php b/var/MarkdownExtraExtended.php
deleted file mode 100644
index 6a5ac418..00000000
--- a/var/MarkdownExtraExtended.php
+++ /dev/null
@@ -1,3289 +0,0 @@
-
-#
-# Original Markdown
-# Copyright (c) 2004-2006 John Gruber
-#
-#
-
-#
-# Markdown Parser Class
-#
-
-class _Markdown {
-
- ### Version ###
-
- const MARKDOWNLIB_VERSION = "1.3";
-
- ### Configuration Variables ###
-
- # Change to ">" for HTML output.
- public $empty_element_suffix = " />";
- public $tab_width = 4;
-
- # Change to `true` to disallow markup or entities.
- public $no_markup = false;
- public $no_entities = false;
-
- # Predefined urls and titles for reference links and images.
- public $predef_urls = array();
- public $predef_titles = array();
-
-
- ### Parser Implementation ###
-
- # Regex to match balanced [brackets].
- # Needed to insert a maximum bracked depth while converting to PHP.
- protected $nested_brackets_depth = 6;
- protected $nested_brackets_re;
-
- protected $nested_url_parenthesis_depth = 4;
- protected $nested_url_parenthesis_re;
-
- # Table of hash values for escaped characters:
- protected $escape_chars = '\`*_{}[]()>#+-.!';
- protected $escape_chars_re;
-
-
- public function __construct() {
- #
- # Constructor function. Initialize appropriate member variables.
- #
- $this->_initDetab();
- $this->prepareItalicsAndBold();
-
- $this->nested_brackets_re =
- str_repeat('(?>[^\[\]]+|\[', $this->nested_brackets_depth).
- str_repeat('\])*', $this->nested_brackets_depth);
-
- $this->nested_url_parenthesis_re =
- str_repeat('(?>[^()\s]+|\(', $this->nested_url_parenthesis_depth).
- str_repeat('(?>\)))*', $this->nested_url_parenthesis_depth);
-
- $this->escape_chars_re = '['.preg_quote($this->escape_chars).']';
-
- # Sort document, block, and span gamut in ascendent priority order.
- asort($this->document_gamut);
- asort($this->block_gamut);
- asort($this->span_gamut);
- }
-
-
- # Internal hashes used during transformation.
- protected $urls = array();
- protected $titles = array();
- protected $html_hashes = array();
-
- # Status flag to avoid invalid nesting.
- protected $in_anchor = false;
-
-
- protected function setup() {
- #
- # Called before the transformation process starts to setup parser
- # states.
- #
- # Clear global hashes.
- $this->urls = $this->predef_urls;
- $this->titles = $this->predef_titles;
- $this->html_hashes = array();
-
- $this->in_anchor = false;
- }
-
- protected function teardown() {
- #
- # Called after the transformation process to clear any variable
- # which may be taking up memory unnecessarly.
- #
- $this->urls = array();
- $this->titles = array();
- $this->html_hashes = array();
- }
-
-
- public function transform($text) {
- #
- # Main function. Performs some preprocessing on the input text
- # and pass it through the document gamut.
- #
- $this->setup();
-
- # Remove UTF-8 BOM and marker character in input, if present.
- $text = preg_replace('{^\xEF\xBB\xBF|\x1A}', '', $text);
-
- # Standardize line endings:
- # DOS to Unix and Mac to Unix
- $text = preg_replace('{\r\n?}', "\n", $text);
-
- # Make sure $text ends with a couple of newlines:
- $text .= "\n\n";
-
- # Convert all tabs to spaces.
- $text = $this->detab($text);
-
- # Turn block-level HTML blocks into hash entries
- $text = $this->hashHTMLBlocks($text);
-
- # Strip any lines consisting only of spaces and tabs.
- # This makes subsequent regexen easier to write, because we can
- # match consecutive blank lines with /\n+/ instead of something
- # contorted like /[ ]*\n+/ .
- $text = preg_replace('/^[ ]+$/m', '', $text);
-
- # Run document gamut methods.
- foreach ($this->document_gamut as $method => $priority) {
- $text = $this->$method($text);
- }
-
- $this->teardown();
-
- $text = preg_replace_callback("/<\/?(\!doctype|html|head|body|link|title|input|select|button|textarea|style|noscript)[^>]*>/is",
- array($this, '_doEscape_callback'), $text);
-
- return $text . "\n";
- }
-
- /**
- * _doEscape_callback
- *
- * @param array $matches
- * @access protected
- * @return string
- */
- protected function _doEscape_callback($matches) {
- return htmlspecialchars($matches[0], ENT_NOQUOTES);
- }
-
- protected $document_gamut = array(
- # Strip link definitions, store in hashes.
- "stripLinkDefinitions" => 20,
-
- "runBasicBlockGamut" => 30,
- );
-
-
- protected function stripLinkDefinitions($text) {
- #
- # Strips link definitions from text, stores the URLs and titles in
- # hash references.
- #
- $less_than_tab = $this->tab_width - 1;
-
- # Link defs are in the form: ^[id]: url "optional title"
- $text = preg_replace_callback('{
- ^[ ]{0,'.$less_than_tab.'}\[(.+)\][ ]?: # id = $1
- [ ]*
- \n? # maybe *one* newline
- [ ]*
- (?:
- <(.+?)> # url = $2
- |
- (\S+?) # url = $3
- )
- [ ]*
- \n? # maybe one newline
- [ ]*
- (?:
- (?<=\s) # lookbehind for whitespace
- ["(]
- (.*?) # title = $4
- [")]
- [ ]*
- )? # title is optional
- (?:\n+|\Z)
- }xm',
- array($this, '_stripLinkDefinitions_callback'),
- $text);
- return $text;
- }
- protected function _stripLinkDefinitions_callback($matches) {
- $link_id = strtolower($matches[1]);
- $url = $matches[2] == '' ? $matches[3] : $matches[2];
- $this->urls[$link_id] = $url;
- $this->titles[$link_id] =& $matches[4];
- return ''; # String that will replace the block
- }
-
-
- protected function hashHTMLBlocks($text) {
- if ($this->no_markup) return $text;
-
- $less_than_tab = $this->tab_width - 1;
-
- # Hashify HTML blocks:
- # We only want to do this for block-level HTML tags, such as headers,
- # lists, and tables. That's because we still want to wrap
s around
- # "paragraphs" that are wrapped in non-block-level tags, such as anchors,
- # phrase emphasis, and spans. The list of tags we're looking for is
- # hard-coded:
- #
- # * List "a" is made of tags which can be both inline or block-level.
- # These will be treated block-level when the start tag is alone on
- # its line, otherwise they're not matched here and will be taken as
- # inline later.
- # * List "b" is made of tags which are always block-level;
- #
- $block_tags_a_re = 'ins|del';
- $block_tags_b_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|'.
- 'script|noscript|form|fieldset|iframe|math|svg|'.
- 'article|section|nav|aside|hgroup|header|footer|'.
- 'figure';
-
- # Regular expression for the content of a block tag.
- $nested_tags_level = 4;
- $attr = '
- (?> # optional tag attributes
- \s # starts with whitespace
- (?>
- [^>"/]+ # text outside quotes
- |
- /+(?!>) # slash not followed by ">"
- |
- "[^"]*" # text inside double quotes (tolerate ">")
- |
- \'[^\']*\' # text inside single quotes (tolerate ">")
- )*
- )?
- ';
- $content =
- str_repeat('
- (?>
- [^<]+ # content without tag
- |
- <\2 # nested opening tag
- '.$attr.' # attributes
- (?>
- />
- |
- >', $nested_tags_level). # end of opening tag
- '.*?'. # last level nested tag content
- str_repeat('
- # closing nested tag
- )
- |
- <(?!/\2\s*> # other tags with a different name
- )
- )*',
- $nested_tags_level);
- $content2 = str_replace('\2', '\3', $content);
-
- # First, look for nested blocks, e.g.:
- #
- #
- # tags for inner block must be indented.
- #
- #
- #
- # The outermost tags must start at the left margin for this to match, and
- # the inner nested divs must be indented.
- # We need to do this before the next, more liberal match, because the next
- # match will start at the first `
` and stop at the first `
`.
- $text = preg_replace_callback('{(?>
- (?>
- (?<=\n\n) # Starting after a blank line
- | # or
- \A\n? # the beginning of the doc
- )
- ( # save in $1
-
- # Match from `\n` to `\n`, handling nested tags
- # in between.
-
- [ ]{0,'.$less_than_tab.'}
- <('.$block_tags_b_re.')# start tag = $2
- '.$attr.'> # attributes followed by > and \n
- '.$content.' # content, support nesting
- # the matching end tag
- [ ]* # trailing spaces/tabs
- (?=\n+|\Z) # followed by a newline or end of document
-
- | # Special version for tags of group a.
-
- [ ]{0,'.$less_than_tab.'}
- <('.$block_tags_a_re.')# start tag = $3
- '.$attr.'>[ ]*\n # attributes followed by >
- '.$content2.' # content, support nesting
- # the matching end tag
- [ ]* # trailing spaces/tabs
- (?=\n+|\Z) # followed by a newline or end of document
-
- | # Special case just for . It was easier to make a special
- # case than to make the other regex more complicated.
-
- [ ]{0,'.$less_than_tab.'}
- <(hr) # start tag = $2
- '.$attr.' # attributes
- /?> # the matching end tag
- [ ]*
- (?=\n{2,}|\Z) # followed by a blank line or end of document
-
- | # Special case for standalone HTML comments:
-
- [ ]{0,'.$less_than_tab.'}
- (?s:
-
- )
- [ ]*
- (?=\n{2,}|\Z) # followed by a blank line or end of document
-
- | # PHP and ASP-style processor instructions (
- )
- [ ]*
- (?=\n{2,}|\Z) # followed by a blank line or end of document
-
- )
- )}Sxmi',
- array($this, '_hashHTMLBlocks_callback'),
- $text);
-
- return $text;
- }
- protected function _hashHTMLBlocks_callback($matches) {
- $text = $matches[1];
- return $this->hashBlock($text);
- // return "\n\n$key\n\n";
- }
-
-
- protected function hashPart($text, $boundary = 'X') {
- #
- # Called whenever a tag must be hashed when a function insert an atomic
- # element in the text stream. Passing $text to through this function gives
- # a unique text-token which will be reverted back when calling unhash.
- #
- # The $boundary argument specify what character should be used to surround
- # the token. By convension, "B" is used for block elements that needs not
- # to be wrapped into paragraph tags at the end, ":" is used for elements
- # that are word separators and "X" is used in the general case.
- #
- # Swap back any tag hash found in $text so we do not have to `unhash`
- # multiple times at the end.
- $text = $this->unhash($text);
-
- # Then hash the block.
- static $i = 0;
- $key = "$boundary\x1A" . ++$i . $boundary;
- $this->html_hashes[$key] = $text;
- return $key; # String that will replace the tag.
- }
-
-
- protected function hashBlock($text) {
- #
- # Shortcut function for hashPart with block-level boundaries.
- #
- return $this->hashPart($text, 'B');
- }
-
-
- protected $block_gamut = array(
- #
- # These are all the transformations that form block-level
- # tags like paragraphs, headers, and list items.
- #
- "doHeaders" => 10,
- "doHorizontalRules" => 20,
-
- "doLists" => 40,
- "doCodeBlocks" => 50,
- "doBlockQuotes" => 60,
- );
-
- protected function runBlockGamut($text) {
- #
- # Run block gamut tranformations.
- #
- # We need to escape raw HTML in Markdown source before doing anything
- # else. This need to be done for each block, and not only at the
- # begining in the Markdown function since hashed blocks can be part of
- # list items and could have been indented. Indented blocks would have
- # been seen as a code block in a previous pass of hashHTMLBlocks.
- $text = $this->hashHTMLBlocks($text);
-
- return $this->runBasicBlockGamut($text);
- }
-
- protected function runBasicBlockGamut($text) {
- #
- # Run block gamut tranformations, without hashing HTML blocks. This is
- # useful when HTML blocks are known to be already hashed, like in the first
- # whole-document pass.
- #
- foreach ($this->block_gamut as $method => $priority) {
- $text = $this->$method($text);
- }
-
- # Finally form paragraph and restore hashed blocks.
- $text = $this->formParagraphs($text);
-
- return $text;
- }
-
-
- protected function doHorizontalRules($text) {
- # Do Horizontal Rules:
- return preg_replace(
- '{
- ^[ ]{0,3} # Leading space
- ([-*_]) # $1: First marker
- (?> # Repeated marker group
- [ ]{0,2} # Zero, one, or two spaces.
- \1 # Marker character
- ){2,} # Group repeated at least twice
- [ ]* # Tailing spaces
- $ # End of line.
- }mx',
- "\n".$this->hashBlock("empty_element_suffix")."\n",
- $text);
- }
-
-
- protected $span_gamut = array(
- #
- # These are all the transformations that occur *within* block-level
- # tags like paragraphs, headers, and list items.
- #
- # Process character escapes, code spans, and inline HTML
- # in one shot.
- "parseSpan" => -30,
-
- # Process anchor and image tags. Images must come first,
- # because ![foo][f] looks like an anchor.
- "doImages" => 10,
- "doAnchors" => 20,
-
- # Make links out of things like ``
- # Must come after doAnchors, because you can use < and >
- # delimiters in inline links like [this]().
- "doAutoLinks" => 30,
- "encodeAmpsAndAngles" => 40,
-
- "doItalicsAndBold" => 50,
- "doHardBreaks" => 60,
- );
-
- protected function runSpanGamut($text) {
- #
- # Run span gamut tranformations.
- #
- foreach ($this->span_gamut as $method => $priority) {
- $text = $this->$method($text);
- }
-
- return $text;
- }
-
-
- protected function doHardBreaks($text) {
- # Do hard breaks:
- return preg_replace_callback('/ {2,}\n/',
- array($this, '_doHardBreaks_callback'), $text);
- }
- protected function _doHardBreaks_callback($matches) {
- return $this->hashPart("empty_element_suffix\n");
- }
-
-
- protected function doAnchors($text) {
- #
- # Turn Markdown link shortcuts into XHTML tags.
- #
- if ($this->in_anchor) return $text;
- $this->in_anchor = true;
-
- #
- # First, handle reference-style links: [link text] [id]
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ('.$this->nested_brackets_re.') # link text = $2
- \]
-
- [ ]? # one optional space
- (?:\n[ ]*)? # one optional newline followed by spaces
-
- \[
- (.*?) # id = $3
- \]
- )
- }xs',
- array($this, '_doAnchors_reference_callback'), $text);
-
- #
- # Next, inline-style links: [link text](url "optional title")
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ('.$this->nested_brackets_re.') # link text = $2
- \]
- \( # literal paren
- [ \n]*
- (?:
- <(.+?)> # href = $3
- |
- ('.$this->nested_url_parenthesis_re.') # href = $4
- )
- [ \n]*
- ( # $5
- ([\'"]) # quote char = $6
- (.*?) # Title = $7
- \6 # matching quote
- [ \n]* # ignore any spaces/tabs between closing quote and )
- )? # title is optional
- \)
- )
- }xs',
- array($this, '_doAnchors_inline_callback'), $text);
-
- #
- # Last, handle reference-style shortcuts: [link text]
- # These must come last in case you've also got [link text][1]
- # or [link text](/foo)
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ([^\[\]]+) # link text = $2; can\'t contain [ or ]
- \]
- )
- }xs',
- array($this, '_doAnchors_reference_callback'), $text);
-
- $this->in_anchor = false;
- return $text;
- }
- protected function _doAnchors_reference_callback($matches) {
- $whole_match = $matches[1];
- $link_text = $matches[2];
- $link_id =& $matches[3];
-
- if ($link_id == "") {
- # for shortcut links like [this][] or [this].
- $link_id = $link_text;
- }
-
- # lower-case and turn embedded newlines into spaces
- $link_id = strtolower($link_id);
- $link_id = preg_replace('{[ ]?\n}', ' ', $link_id);
-
- if (isset($this->urls[$link_id])) {
- $url = $this->urls[$link_id];
- $url = $this->encodeAttribute($url);
-
- $result = "titles[$link_id] ) ) {
- $title = $this->titles[$link_id];
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
-
- $link_text = $this->runSpanGamut($link_text);
- $result .= ">$link_text";
- $result = $this->hashPart($result);
- }
- else {
- $result = $whole_match;
- }
- return $result;
- }
- protected function _doAnchors_inline_callback($matches) {
- $whole_match = $matches[1];
- $link_text = $this->runSpanGamut($matches[2]);
- $url = $matches[3] == '' ? $matches[4] : $matches[3];
- $title =& $matches[7];
-
- $url = $this->encodeAttribute($url);
-
- $result = "encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
-
- $link_text = $this->runSpanGamut($link_text);
- $result .= ">$link_text";
-
- return $this->hashPart($result);
- }
-
-
- protected function doImages($text) {
- #
- # Turn Markdown image shortcuts into tags.
- #
- #
- # First, handle reference-style labeled images: ![alt text][id]
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- !\[
- ('.$this->nested_brackets_re.') # alt text = $2
- \]
-
- [ ]? # one optional space
- (?:\n[ ]*)? # one optional newline followed by spaces
-
- \[
- (.*?) # id = $3
- \]
-
- )
- }xs',
- array($this, '_doImages_reference_callback'), $text);
-
- #
- # Next, handle inline images: 
- # Don't forget: encode * and _
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- !\[
- ('.$this->nested_brackets_re.') # alt text = $2
- \]
- \s? # One optional whitespace character
- \( # literal paren
- [ \n]*
- (?:
- <(\S*)> # src url = $3
- |
- ('.$this->nested_url_parenthesis_re.') # src url = $4
- )
- [ \n]*
- ( # $5
- ([\'"]) # quote char = $6
- (.*?) # title = $7
- \6 # matching quote
- [ \n]*
- )? # title is optional
- \)
- )
- }xs',
- array($this, '_doImages_inline_callback'), $text);
-
- return $text;
- }
- protected function _doImages_reference_callback($matches) {
- $whole_match = $matches[1];
- $alt_text = $matches[2];
- $link_id = strtolower($matches[3]);
-
- if ($link_id == "") {
- $link_id = strtolower($alt_text); # for shortcut links like ![this][].
- }
-
- $alt_text = $this->encodeAttribute($alt_text);
- if (isset($this->urls[$link_id])) {
- $url = $this->encodeAttribute($this->urls[$link_id]);
- $result = "titles[$link_id])) {
- $title = $this->titles[$link_id];
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- $result .= $this->empty_element_suffix;
- $result = $this->hashPart($result);
- }
- else {
- # If there's no such link ID, leave intact:
- $result = $whole_match;
- }
-
- return $result;
- }
- protected function _doImages_inline_callback($matches) {
- $whole_match = $matches[1];
- $alt_text = $matches[2];
- $url = $matches[3] == '' ? $matches[4] : $matches[3];
- $title =& $matches[7];
-
- $alt_text = $this->encodeAttribute($alt_text);
- $url = $this->encodeAttribute($url);
- $result = "encodeAttribute($title);
- $result .= " title=\"$title\""; # $title already quoted
- }
- $result .= $this->empty_element_suffix;
-
- return $this->hashPart($result);
- }
-
-
- protected function doHeaders($text) {
- # Setext-style headers:
- # Header 1
- # ========
- #
- # Header 2
- # --------
- #
- $text = preg_replace_callback('{ ^(.+?)[ ]*\n(=+|-+)[ ]*\n+ }mx',
- array($this, '_doHeaders_callback_setext'), $text);
-
- # atx-style headers:
- # # Header 1
- # ## Header 2
- # ## Header 2 with closing hashes ##
- # ...
- # ###### Header 6
- #
- $text = preg_replace_callback('{
- ^(\#{1,6}) # $1 = string of #\'s
- [ ]*
- (.+?) # $2 = Header text
- [ ]*
- \#* # optional closing #\'s (not counted)
- \n+
- }xm',
- array($this, '_doHeaders_callback_atx'), $text);
-
- return $text;
- }
- protected function _doHeaders_callback_setext($matches) {
- # Terrible hack to check we haven't found an empty list item.
- if ($matches[2] == '-' && preg_match('{^-(?: |$)}', $matches[1]))
- return $matches[0];
-
- $level = $matches[2]{0} == '=' ? 1 : 2;
- $block = "".$this->runSpanGamut($matches[1])."";
- return "\n" . $this->hashBlock($block) . "\n\n";
- }
- protected function _doHeaders_callback_atx($matches) {
- $level = strlen($matches[1]);
- $block = "".$this->runSpanGamut($matches[2])."";
- return "\n" . $this->hashBlock($block) . "\n\n";
- }
-
-
- protected function doLists($text) {
- #
- # Form HTML ordered (numbered) and unordered (bulleted) lists.
- #
- $less_than_tab = $this->tab_width - 1;
-
- # Re-usable patterns to match list item bullets and number markers:
- $marker_ul_re = '[*+-]';
- $marker_ol_re = '\d+[\.]';
- $marker_any_re = "(?:$marker_ul_re|$marker_ol_re)";
-
- $markers_relist = array(
- $marker_ul_re => $marker_ol_re,
- $marker_ol_re => $marker_ul_re,
- );
-
- foreach ($markers_relist as $marker_re => $other_marker_re) {
- # Re-usable pattern to match any entirel ul or ol list:
- $whole_list_re = '
- ( # $1 = whole list
- ( # $2
- ([ ]{0,'.$less_than_tab.'}) # $3 = number of spaces
- ('.$marker_re.') # $4 = first list item marker
- [ ]+
- )
- (?s:.+?)
- ( # $5
- \z
- |
- \n{2,}
- (?=\S)
- (?! # Negative lookahead for another list item marker
- [ ]*
- '.$marker_re.'[ ]+
- )
- |
- (?= # Lookahead for another kind of list
- \n
- \3 # Must have the same indentation
- '.$other_marker_re.'[ ]+
- )
- )
- )
- '; // mx
-
- # We use a different prefix before nested lists than top-level lists.
- # See extended comment in _ProcessListItems().
-
- if ($this->list_level) {
- $text = preg_replace_callback('{
- ^
- '.$whole_list_re.'
- }mx',
- array($this, '_doLists_callback'), $text);
- }
- else {
- $text = preg_replace_callback('{
- (?:(?<=\n)\n?|\A\n?) # Must eat the newline
- '.$whole_list_re.'
- }mx',
- array($this, '_doLists_callback'), $text);
- }
- }
-
- return $text;
- }
- protected function _doLists_callback($matches) {
- # Re-usable patterns to match list item bullets and number markers:
- $marker_ul_re = '[*+-]';
- $marker_ol_re = '\d+[\.]';
- $marker_any_re = "(?:$marker_ul_re|$marker_ol_re)";
-
- $list = $matches[1];
- $list_type = preg_match("/$marker_ul_re/", $matches[4]) ? "ul" : "ol";
-
- $marker_any_re = ( $list_type == "ul" ? $marker_ul_re : $marker_ol_re );
-
- $list .= "\n";
- $result = $this->processListItems($list, $marker_any_re);
-
- $result = $this->hashBlock("<$list_type>\n" . $result . "");
- return "\n". $result ."\n\n";
- }
-
- protected $list_level = 0;
-
- protected function processListItems($list_str, $marker_any_re) {
- #
- # Process the contents of a single ordered or unordered list, splitting it
- # into individual list items.
- #
- # The $this->list_level global keeps track of when we're inside a list.
- # Each time we enter a list, we increment it; when we leave a list,
- # we decrement. If it's zero, we're not in a list anymore.
- #
- # We do this because when we're not inside a list, we want to treat
- # something like this:
- #
- # I recommend upgrading to version
- # 8. Oops, now this line is treated
- # as a sub-list.
- #
- # As a single paragraph, despite the fact that the second line starts
- # with a digit-period-space sequence.
- #
- # Whereas when we're inside a list (or sub-list), that line will be
- # treated as the start of a sub-list. What a kludge, huh? This is
- # an aspect of Markdown's syntax that's hard to parse perfectly
- # without resorting to mind-reading. Perhaps the solution is to
- # change the syntax rules such that sub-lists must start with a
- # starting cardinal number; e.g. "1." or "a.".
-
- $this->list_level++;
-
- # trim trailing blank lines:
- $list_str = preg_replace("/\n{2,}\\z/", "\n", $list_str);
-
- $list_str = preg_replace_callback('{
- (\n)? # leading line = $1
- (^[ ]*) # leading whitespace = $2
- ('.$marker_any_re.' # list marker and space = $3
- (?:[ ]+|(?=\n)) # space only required if item is not empty
- )
- ((?s:.*?)) # list item text = $4
- (?:(\n+(?=\n))|\n) # tailing blank line = $5
- (?= \n* (\z | \2 ('.$marker_any_re.') (?:[ ]+|(?=\n))))
- }xm',
- array($this, '_processListItems_callback'), $list_str);
-
- $this->list_level--;
- return $list_str;
- }
- protected function _processListItems_callback($matches) {
- $item = $matches[4];
- $leading_line =& $matches[1];
- $leading_space =& $matches[2];
- $marker_space = $matches[3];
- $tailing_blank_line =& $matches[5];
-
- if ($leading_line || $tailing_blank_line ||
- preg_match('/\n{2,}/', $item))
- {
- # Replace marker with the appropriate whitespace indentation
- $item = $leading_space . str_repeat(' ', strlen($marker_space)) . $item;
- $item = $this->runBlockGamut($this->outdent($item)."\n");
- }
- else {
- # Recursion for sub-lists:
- $item = $this->doLists($this->outdent($item));
- $item = preg_replace('/\n+$/', '', $item);
- $item = $this->runSpanGamut($item);
- }
-
- return "
" . $item . "
\n";
- }
-
-
- protected function doCodeBlocks($text) {
- #
- # Process Markdown `
` blocks.
- #
- $text = preg_replace_callback('{
- (?:\n\n|\A\n?)
- ( # $1 = the code block -- one or more lines, starting with a space/tab
- (?>
- [ ]{'.$this->tab_width.'} # Lines must start with a tab or a tab-width of spaces
- .*\n+
- )+
- )
- ((?=^[ ]{0,'.$this->tab_width.'}\S)|\Z) # Lookahead for non-space at line-start, or end of doc
- }xm',
- array($this, '_doCodeBlocks_callback'), $text);
-
- return $text;
- }
- protected function _doCodeBlocks_callback($matches) {
- $codeblock = $this->unhash($matches[1]);
-
- $codeblock = $this->outdent($codeblock);
- $codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
-
- # trim leading newlines and trailing newlines
- $codeblock = preg_replace('/\A\n+|\n+\z/', '', $codeblock);
-
- $codeblock = "
$codeblock\n
";
- return "\n\n".$this->hashBlock($codeblock)."\n\n";
- }
-
-
- protected function makeCodeSpan($code) {
- #
- # Create a code span markup for $code. Called from handleSpanToken.
- #
- $code = htmlspecialchars(trim($code), ENT_NOQUOTES);
- return $this->hashPart("$code");
- }
-
-
- protected $em_relist = array(
- '' => '(?:(? '(?<=\S|^)(? '(?<=\S|^)(? '(?:(? '(?<=\S|^)(? '(?<=\S|^)(? '(?:(? '(?<=\S|^)(? '(?<=\S|^)(?em_relist as $em => $em_re) {
- foreach ($this->strong_relist as $strong => $strong_re) {
- # Construct list of allowed token expressions.
- $token_relist = array();
- if (isset($this->em_strong_relist["$em$strong"])) {
- $token_relist[] = $this->em_strong_relist["$em$strong"];
- }
- $token_relist[] = $em_re;
- $token_relist[] = $strong_re;
-
- # Construct master expression from list.
- $token_re = '{('. implode('|', $token_relist) .')}';
- $this->em_strong_prepared_relist["$em$strong"] = $token_re;
- }
- }
- }
-
- protected function doItalicsAndBold($text) {
- $token_stack = array('');
- $text_stack = array('');
- $em = '';
- $strong = '';
- $tree_char_em = false;
-
- while (1) {
- #
- # Get prepared regular expression for seraching emphasis tokens
- # in current context.
- #
- $token_re = $this->em_strong_prepared_relist["$em$strong"];
-
- #
- # Each loop iteration search for the next emphasis token.
- # Each token is then passed to handleSpanToken.
- #
- $parts = preg_split($token_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
- $text_stack[0] .= $parts[0];
- $token =& $parts[1];
- $text =& $parts[2];
-
- if (empty($token)) {
- # Reached end of text span: empty stack without emitting.
- # any more emphasis.
- while ($token_stack[0]) {
- $text_stack[1] .= array_shift($token_stack);
- $text_stack[0] .= array_shift($text_stack);
- }
- break;
- }
-
- $token_len = strlen($token);
- if ($tree_char_em) {
- # Reached closing marker while inside a three-char emphasis.
- if ($token_len == 3) {
- # Three-char closing marker, close em and strong.
- array_shift($token_stack);
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "$span";
- $text_stack[0] .= $this->hashPart($span);
- $em = '';
- $strong = '';
- } else {
- # Other closing marker: close one em or strong and
- # change current token state to match the other
- $token_stack[0] = str_repeat($token{0}, 3-$token_len);
- $tag = $token_len == 2 ? "strong" : "em";
- $span = $text_stack[0];
- $span = $this->runSpanGamut($span);
- $span = "<$tag>$span";
- $text_stack[0] = $this->hashPart($span);
- $$tag = ''; # $$tag stands for $em or $strong
- }
- $tree_char_em = false;
- } else if ($token_len == 3) {
- if ($em) {
- # Reached closing marker for both em and strong.
- # Closing strong marker:
- for ($i = 0; $i < 2; ++$i) {
- $shifted_token = array_shift($token_stack);
- $tag = strlen($shifted_token) == 2 ? "strong" : "em";
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "<$tag>$span";
- $text_stack[0] .= $this->hashPart($span);
- $$tag = ''; # $$tag stands for $em or $strong
- }
- } else {
- # Reached opening three-char emphasis marker. Push on token
- # stack; will be handled by the special condition above.
- $em = $token{0};
- $strong = "$em$em";
- array_unshift($token_stack, $token);
- array_unshift($text_stack, '');
- $tree_char_em = true;
- }
- } else if ($token_len == 2) {
- if ($strong) {
- # Unwind any dangling emphasis marker:
- if (strlen($token_stack[0]) == 1) {
- $text_stack[1] .= array_shift($token_stack);
- $text_stack[0] .= array_shift($text_stack);
- }
- # Closing strong marker:
- array_shift($token_stack);
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "$span";
- $text_stack[0] .= $this->hashPart($span);
- $strong = '';
- } else {
- array_unshift($token_stack, $token);
- array_unshift($text_stack, '');
- $strong = $token;
- }
- } else {
- # Here $token_len == 1
- if ($em) {
- if (strlen($token_stack[0]) == 1) {
- # Closing emphasis marker:
- array_shift($token_stack);
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "$span";
- $text_stack[0] .= $this->hashPart($span);
- $em = '';
- } else {
- $text_stack[0] .= $token;
- }
- } else {
- array_unshift($token_stack, $token);
- array_unshift($text_stack, '');
- $em = $token;
- }
- }
- }
- return $text_stack[0];
- }
-
-
- protected function doBlockQuotes($text) {
- $text = preg_replace_callback('/
- ( # Wrap whole match in $1
- (?>
- ^[ ]*>[ ]? # ">" at the start of a line
- .+\n # rest of the first line
- (.+\n)* # subsequent consecutive lines
- \n* # blanks
- )+
- )
- /xm',
- array($this, '_doBlockQuotes_callback'), $text);
-
- return $text;
- }
- protected function _doBlockQuotes_callback($matches) {
- $bq = $matches[1];
- # trim one level of quoting - trim whitespace-only lines
- $bq = preg_replace('/^[ ]*>[ ]?|^[ ]+$/m', '', $bq);
- $bq = $this->runBlockGamut($bq); # recurse
-
- $bq = preg_replace('/^/m', " ", $bq);
- # These leading spaces cause problem with
content,
- # so we need to fix that:
- $bq = preg_replace_callback('{(\s*
- #
- # Based by a filter by Matthew Wickline, posted to BBEdit-Talk.
- # With some optimizations by Milian Wolff.
- #
- $addr = "mailto:" . $addr;
- $chars = preg_split('/(? $char) {
- $ord = ord($char);
- # Ignore non-ascii chars.
- if ($ord < 128) {
- $r = ($seed * (1 + $key)) % 100; # Pseudo-random function.
- # roughly 10% raw, 45% hex, 45% dec
- # '@' *must* be encoded. I insist.
- if ($r > 90 && $char != '@') /* do nothing */;
- else if ($r < 45) $chars[$key] = '&#x'.dechex($ord).';';
- else $chars[$key] = '&#'.$ord.';';
- }
- }
-
- $addr = implode('', $chars);
- $text = implode('', array_slice($chars, 7)); # text without `mailto:`
- $addr = "$text";
-
- return $addr;
- }
-
-
- protected function parseSpan($str) {
- #
- # Take the string $str and parse it into tokens, hashing embeded HTML,
- # escaped characters and handling code spans.
- #
- $output = '';
-
- $span_re = '{
- (
- \\\\'.$this->escape_chars_re.'
- |
- (?no_markup ? '' : '
- |
- # comment
- |
- <\?.*?\?> | <%.*?%> # processing instruction
- |
- <[!$]?[-a-zA-Z0-9:_]+ # regular tags
- (?>
- \s
- (?>[^"\'>]+|"[^"]*"|\'[^\']*\')*
- )?
- >
- |
- <[-a-zA-Z0-9:_]+\s*/> # xml-style empty tag
- |
- # closing tag
- ').'
- )
- }xs';
-
- while (1) {
- #
- # Each loop iteration seach for either the next tag, the next
- # openning code span marker, or the next escaped character.
- # Each token is then passed to handleSpanToken.
- #
- $parts = preg_split($span_re, $str, 2, PREG_SPLIT_DELIM_CAPTURE);
-
- # Create token from text preceding tag.
- if ($parts[0] != "") {
- $output .= $parts[0];
- }
-
- # Check if we reach the end.
- if (isset($parts[1])) {
- $output .= $this->handleSpanToken($parts[1], $parts[2]);
- $str = $parts[2];
- }
- else {
- break;
- }
- }
-
- return $output;
- }
-
-
- protected function handleSpanToken($token, &$str) {
- #
- # Handle $token provided by parseSpan by determining its nature and
- # returning the corresponding value that should replace it.
- #
- switch ($token{0}) {
- case "\\":
- return $this->hashPart("&#". ord($token{1}). ";");
- case "`":
- # Search for end marker in remaining text.
- if (preg_match('/^(.*?[^`])'.preg_quote($token).'(?!`)(.*)$/sm',
- $str, $matches))
- {
- $str = $matches[2];
- $codespan = $this->makeCodeSpan($matches[1]);
- return $this->hashPart($codespan);
- }
- return $token; // return as text since no ending marker found.
- default:
- return $this->hashPart($token);
- }
- }
-
-
- protected function outdent($text) {
- #
- # Remove one level of line-leading tabs or spaces
- #
- return preg_replace('/^(\t|[ ]{1,'.$this->tab_width.'})/m', '', $text);
- }
-
-
- # String length function for detab. `_initDetab` will create a function to
- # hanlde UTF-8 if the default function does not exist.
- protected $utf8_strlen = 'mb_strlen';
-
- protected function detab($text) {
- #
- # Replace tabs with the appropriate amount of space.
- #
- # For each line we separate the line in blocks delemited by
- # tab characters. Then we reconstruct every line by adding the
- # appropriate number of space between each blocks.
-
- $text = preg_replace_callback('/^.*\t.*$/m',
- array($this, '_detab_callback'), $text);
-
- return $text;
- }
- protected function _detab_callback($matches) {
- $line = $matches[0];
- $strlen = $this->utf8_strlen; # strlen function for UTF-8.
-
- # Split in blocks.
- $blocks = explode("\t", $line);
- # Add each blocks to the line.
- $line = $blocks[0];
- unset($blocks[0]); # Do not add first block twice.
- foreach ($blocks as $block) {
- # Calculate amount of space, insert spaces, insert block.
- $amount = $this->tab_width -
- call_user_func($strlen, $line, 'UTF-8') % $this->tab_width;
- $line .= str_repeat(" ", $amount) . $block;
- }
- return $line;
- }
- protected function _initDetab() {
- #
- # Check for the availability of the function in the `utf8_strlen` property
- # (initially `mb_strlen`). If the function is not available, create a
- # function that will loosely count the number of UTF-8 characters with a
- # regular expression.
- #
- if (function_exists($this->utf8_strlen)) return;
- $this->utf8_strlen = array($this, '_utf8_strlen');
- }
-
- protected function _utf8_strlen($text) {
- return preg_match_all(
- "/[\\x00-\\xBF]|[\\xC0-\\xFF][\\x80-\\xBF]*/",
- $text, $m);
- }
-
-
- protected function unhash($text) {
- #
- # Swap back in all the tags hashed by _HashHTMLBlocks.
- #
- return preg_replace_callback('/(.)\x1A[0-9]+\1/',
- array($this, '_unhash_callback'), $text);
- }
- protected function _unhash_callback($matches) {
- return $this->html_hashes[trim($matches[0])];
- }
-}
-
-#
-# Temporary Markdown Extra Parser Implementation Class
-#
-# NOTE: DON'T USE THIS CLASS
-# Currently the implementation of of Extra resides here in this temporary class.
-# This makes it easier to propagate the changes between the three different
-# packaging styles of PHP Markdown. When this issue is resolved, this
-# MarkdownExtra_TmpImpl class here will disappear and \Michelf\MarkdownExtra
-# will contain the code. So please use \Michelf\MarkdownExtra and ignore this
-# one.
-#
-
-class MarkdownExtra extends _Markdown {
-
- ### Configuration Variables ###
-
- # Prefix for footnote ids.
- public $fn_id_prefix = "";
-
- # Optional title attribute for footnote links and backlinks.
- public $fn_link_title = "";
- public $fn_backlink_title = "";
-
- # Optional class attribute for footnote links and backlinks.
- public $fn_link_class = "footnote-ref";
- public $fn_backlink_class = "footnote-backref";
-
- # Class name for table cell alignment (%% replaced left/center/right)
- # For instance: 'go-%%' becomes 'go-left' or 'go-right' or 'go-center'
- # If empty, the align attribute is used instead of a class name.
- public $table_align_class_tmpl = '';
-
- # Optional class prefix for fenced code block.
- public $code_class_prefix = "";
- # Class attribute for code blocks goes on the `code` tag;
- # setting this to true will put attributes on the `pre` tag instead.
- public $code_attr_on_pre = false;
-
- # Predefined abbreviations.
- public $predef_abbr = array();
-
-
- ### Parser Implementation ###
-
- public function __construct() {
- #
- # Constructor function. Initialize the parser object.
- #
- # Add extra escapable characters before parent constructor
- # initialize the table.
- $this->escape_chars .= ':|';
-
- # Insert extra document, block, and span transformations.
- # Parent constructor will do the sorting.
- $this->document_gamut += array(
- "doFencedCodeBlocks" => 5,
- "stripFootnotes" => 15,
- "stripAbbreviations" => 25,
- "appendFootnotes" => 50,
- );
- $this->block_gamut += array(
- "doFencedCodeBlocks" => 5,
- "doTables" => 15,
- "doDefLists" => 45,
- );
- $this->span_gamut += array(
- "doFootnotes" => 5,
- "doAbbreviations" => 70,
- );
-
- parent::__construct();
- }
-
-
- # Extra variables used during extra transformations.
- protected $footnotes = array();
- protected $footnotes_ordered = array();
- protected $footnotes_ref_count = array();
- protected $footnotes_numbers = array();
- protected $abbr_desciptions = array();
- protected $abbr_word_re = '';
-
- # Give the current footnote number.
- protected $footnote_counter = 1;
-
-
- protected function setup() {
- #
- # Setting up Extra-specific variables.
- #
- parent::setup();
-
- $this->footnotes = array();
- $this->footnotes_ordered = array();
- $this->footnotes_ref_count = array();
- $this->footnotes_numbers = array();
- $this->abbr_desciptions = array();
- $this->abbr_word_re = '';
- $this->footnote_counter = 1;
-
- foreach ($this->predef_abbr as $abbr_word => $abbr_desc) {
- if ($this->abbr_word_re)
- $this->abbr_word_re .= '|';
- $this->abbr_word_re .= preg_quote($abbr_word);
- $this->abbr_desciptions[$abbr_word] = trim($abbr_desc);
- }
- }
-
- protected function teardown() {
- #
- # Clearing Extra-specific variables.
- #
- $this->footnotes = array();
- $this->footnotes_ordered = array();
- $this->footnotes_ref_count = array();
- $this->footnotes_numbers = array();
- $this->abbr_desciptions = array();
- $this->abbr_word_re = '';
-
- parent::teardown();
- }
-
-
- ### Extra Attribute Parser ###
-
- # Expression to use to catch attributes (includes the braces)
- protected $id_class_attr_catch_re = '\{((?:[ ]*[#.][-_:a-zA-Z0-9]+){1,})[ ]*\}';
- # Expression to use when parsing in a context when no capture is desired
- protected $id_class_attr_nocatch_re = '\{(?:[ ]*[#.][-_:a-zA-Z0-9]+){1,}[ ]*\}';
-
- protected function doExtraAttributes($tag_name, $attr) {
- #
- # Parse attributes caught by the $this->id_class_attr_catch_re expression
- # and return the HTML-formatted list of attributes.
- #
- # Currently supported attributes are .class and #id.
- #
- if (empty($attr)) return "";
-
- # Split on components
- preg_match_all('/[#.][-_:a-zA-Z0-9]+/', $attr, $matches);
- $elements = $matches[0];
-
- # handle classes and ids (only first id taken into account)
- $classes = array();
- $id = false;
- foreach ($elements as $element) {
- if ($element{0} == '.') {
- $classes[] = substr($element, 1);
- } else if ($element{0} == '#') {
- if ($id === false) $id = substr($element, 1);
- }
- }
-
- # compose attributes as string
- $attr_str = "";
- if (!empty($id)) {
- $attr_str .= ' id="'.$id.'"';
- }
- if (!empty($classes)) {
- $attr_str .= ' class="'.implode(" ", $classes).'"';
- }
- return $attr_str;
- }
-
-
- protected function stripLinkDefinitions($text) {
- #
- # Strips link definitions from text, stores the URLs and titles in
- # hash references.
- #
- $less_than_tab = $this->tab_width - 1;
-
- # Link defs are in the form: ^[id]: url "optional title"
- $text = preg_replace_callback('{
- ^[ ]{0,'.$less_than_tab.'}\[(.+)\][ ]?: # id = $1
- [ ]*
- \n? # maybe *one* newline
- [ ]*
- (?:
- <(.+?)> # url = $2
- |
- (\S+?) # url = $3
- )
- [ ]*
- \n? # maybe one newline
- [ ]*
- (?:
- (?<=\s) # lookbehind for whitespace
- ["(]
- (.*?) # title = $4
- [")]
- [ ]*
- )? # title is optional
- (?:[ ]* '.$this->id_class_attr_catch_re.' )? # $5 = extra id & class attr
- (?:\n+|\Z)
- }xm',
- array($this, '_stripLinkDefinitions_callback'),
- $text);
- return $text;
- }
- protected function _stripLinkDefinitions_callback($matches) {
- $link_id = strtolower($matches[1]);
- $url = $matches[2] == '' ? $matches[3] : $matches[2];
- $this->urls[$link_id] = $url;
- $this->titles[$link_id] =& $matches[4];
- $this->ref_attr[$link_id] = $this->doExtraAttributes("", $dummy =& $matches[5]);
- return ''; # String that will replace the block
- }
-
-
- ### HTML Block Parser ###
-
- # Tags that are always treated as block tags:
- protected $block_tags_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|form|fieldset|iframe|hr|legend|article|section|nav|aside|hgroup|header|footer|figcaption';
-
- # Tags treated as block tags only if the opening tag is alone on its line:
- protected $context_block_tags_re = 'script|noscript|ins|del|iframe|object|source|track|param|math|svg|canvas|audio|video';
-
- # Tags where markdown="1" default to span mode:
- protected $contain_span_tags_re = 'p|h[1-6]|li|dd|dt|td|th|legend|address';
-
- # Tags which must not have their contents modified, no matter where
- # they appear:
- protected $clean_tags_re = 'script|math|svg';
-
- # Tags that do not need to be closed.
- protected $auto_close_tags_re = 'hr|img|param|source|track';
-
-
- protected function hashHTMLBlocks($text) {
- #
- # Hashify HTML Blocks and "clean tags".
- #
- # We only want to do this for block-level HTML tags, such as headers,
- # lists, and tables. That's because we still want to wrap
s around
- # "paragraphs" that are wrapped in non-block-level tags, such as anchors,
- # phrase emphasis, and spans. The list of tags we're looking for is
- # hard-coded.
- #
- # This works by calling _HashHTMLBlocks_InMarkdown, which then calls
- # _HashHTMLBlocks_InHTML when it encounter block tags. When the markdown="1"
- # attribute is found within a tag, _HashHTMLBlocks_InHTML calls back
- # _HashHTMLBlocks_InMarkdown to handle the Markdown syntax within the tag.
- # These two functions are calling each other. It's recursive!
- #
- if ($this->no_markup) return $text;
-
- #
- # Call the HTML-in-Markdown hasher.
- #
- list($text, ) = $this->_hashHTMLBlocks_inMarkdown($text);
-
- return $text;
- }
- protected function _hashHTMLBlocks_inMarkdown($text, $indent = 0,
- $enclosing_tag_re = '', $span = false)
- {
- #
- # Parse markdown text, calling _HashHTMLBlocks_InHTML for block tags.
- #
- # * $indent is the number of space to be ignored when checking for code
- # blocks. This is important because if we don't take the indent into
- # account, something like this (which looks right) won't work as expected:
- #
- #
- #
- # Hello World. <-- Is this a Markdown code block or text?
- #
<-- Is this a Markdown code block or a real tag?
- #
- #
- # If you don't like this, just don't indent the tag on which
- # you apply the markdown="1" attribute.
- #
- # * If $enclosing_tag_re is not empty, stops at the first unmatched closing
- # tag with that name. Nested tags supported.
- #
- # * If $span is true, text inside must treated as span. So any double
- # newline will be replaced by a single newline so that it does not create
- # paragraphs.
- #
- # Returns an array of that form: ( processed text , remaining text )
- #
- if ($text === '') return array('', '');
-
- # Regex to check for the presense of newlines around a block tag.
- $newline_before_re = '/(?:^\n?|\n\n)*$/';
- $newline_after_re =
- '{
- ^ # Start of text following the tag.
- (?>[ ]*)? # Optional comment.
- [ ]*\n # Must be followed by newline.
- }xs';
-
- # Regex to match any tag.
- $block_tag_re =
- '{
- ( # $2: Capture whole tag.
- # Tag name.
- '.$this->block_tags_re.' |
- '.$this->context_block_tags_re.' |
- '.$this->clean_tags_re.' |
- (?!\s)'.$enclosing_tag_re.'
- )
- (?:
- (?=[\s"\'/a-zA-Z0-9]) # Allowed characters after tag name.
- (?>
- ".*?" | # Double quotes (can contain `>`)
- \'.*?\' | # Single quotes (can contain `>`)
- .+? # Anything but quotes and `>`.
- )*?
- )?
- > # End of tag.
- |
- # HTML Comment
- |
- <\?.*?\?> | <%.*?%> # Processing instruction
- |
- # CData Block
- |
- # Code span marker
- `+
- '. ( !$span ? ' # If not in span.
- |
- # Indented code block
- (?: ^[ ]*\n | ^ | \n[ ]*\n )
- [ ]{'.($indent+4).'}[^\n]* \n
- (?>
- (?: [ ]{'.($indent+4).'}[^\n]* | [ ]* ) \n
- )*
- |
- # Fenced code block marker
- (?<= ^ | \n )
- [ ]{0,'.($indent+3).'}~{3,}
- [ ]*
- (?:
- \.?[-_:a-zA-Z0-9]+ # standalone class name
- |
- '.$this->id_class_attr_nocatch_re.' # extra attributes
- )?
- [ ]*
- \n
- ' : '' ). ' # End (if not is span).
- )
- }xs';
-
-
- $depth = 0; # Current depth inside the tag tree.
- $parsed = ""; # Parsed text that will be returned.
-
- #
- # Loop through every tag until we find the closing tag of the parent
- # or loop until reaching the end of text if no parent tag specified.
- #
- do {
- #
- # Split the text using the first $tag_match pattern found.
- # Text before pattern will be first in the array, text after
- # pattern will be at the end, and between will be any catches made
- # by the pattern.
- #
- $parts = preg_split($block_tag_re, $text, 2,
- PREG_SPLIT_DELIM_CAPTURE);
-
- # If in Markdown span mode, add a empty-string span-level hash
- # after each newline to prevent triggering any block element.
- if ($span) {
- $void = $this->hashPart("", ':');
- $newline = "$void\n";
- $parts[0] = $void . str_replace("\n", $newline, $parts[0]) . $void;
- }
-
- $parsed .= $parts[0]; # Text before current tag.
-
- # If end of $text has been reached. Stop loop.
- if (count($parts) < 3) {
- $text = "";
- break;
- }
-
- $tag = $parts[1]; # Tag to handle.
- $text = $parts[2]; # Remaining text after current tag.
- $tag_re = preg_quote($tag); # For use in a regular expression.
-
- #
- # Check for: Code span marker
- #
- if ($tag{0} == "`") {
- # Find corresponding end marker.
- $tag_re = preg_quote($tag);
- if (preg_match('{^(?>.+?|\n(?!\n))*?(?.*\n)*?[ ]{'.($fence_indent).'}'.$fence_re.'[ ]*(?:\n|$)}', $text,
- $matches))
- {
- # End marker found: pass text unchanged until marker.
- $parsed .= $tag . $matches[0];
- $text = substr($text, strlen($matches[0]));
- }
- else {
- # No end marker: just skip it.
- $parsed .= $tag;
- }
- }
- #
- # Check for: Indented code block.
- #
- else if ($tag{0} == "\n" || $tag{0} == " ") {
- # Indented code block: pass it unchanged, will be handled
- # later.
- $parsed .= $tag;
- }
- #
- # Check for: Opening Block level tag or
- # Opening Context Block tag (like ins and del)
- # used as a block tag (tag is alone on it's line).
- #
- else if (preg_match('{^<(?:'.$this->block_tags_re.')\b}', $tag) ||
- ( preg_match('{^<(?:'.$this->context_block_tags_re.')\b}', $tag) &&
- preg_match($newline_before_re, $parsed) &&
- preg_match($newline_after_re, $text) )
- )
- {
- # Need to parse tag and following text using the HTML parser.
- list($block_text, $text) =
- $this->_hashHTMLBlocks_inHTML($tag . $text, "hashBlock", true);
-
- # Make sure it stays outside of any paragraph by adding newlines.
- $parsed .= "\n\n$block_text\n\n";
- }
- #
- # Check for: Clean tag (like script, math)
- # HTML Comments, processing instructions.
- #
- else if (preg_match('{^<(?:'.$this->clean_tags_re.')\b}', $tag) ||
- $tag{1} == '!' || $tag{1} == '?')
- {
- # Need to parse tag and following text using the HTML parser.
- # (don't check for markdown attribute)
- list($block_text, $text) =
- $this->_hashHTMLBlocks_inHTML($tag . $text, "hashClean", false);
-
- $parsed .= $block_text;
- }
- #
- # Check for: Tag with same name as enclosing tag.
- #
- else if ($enclosing_tag_re !== '' &&
- # Same name as enclosing tag.
- preg_match('{^= 0);
-
- return array($parsed, $text);
- }
- protected function _hashHTMLBlocks_inHTML($text, $hash_method, $md_attr) {
- #
- # Parse HTML, calling _HashHTMLBlocks_InMarkdown for block tags.
- #
- # * Calls $hash_method to convert any blocks.
- # * Stops when the first opening tag closes.
- # * $md_attr indicate if the use of the `markdown="1"` attribute is allowed.
- # (it is not inside clean tags)
- #
- # Returns an array of that form: ( processed text , remaining text )
- #
- if ($text === '') return array('', '');
-
- # Regex to match `markdown` attribute inside of a tag.
- $markdown_attr_re = '
- {
- \s* # Eat whitespace before the `markdown` attribute
- markdown
- \s*=\s*
- (?>
- (["\']) # $1: quote delimiter
- (.*?) # $2: attribute value
- \1 # matching delimiter
- |
- ([^\s>]*) # $3: unquoted attribute value
- )
- () # $4: make $3 always defined (avoid warnings)
- }xs';
-
- # Regex to match any tag.
- $tag_re = '{
- ( # $2: Capture whole tag.
-
- ".*?" | # Double quotes (can contain `>`)
- \'.*?\' | # Single quotes (can contain `>`)
- .+? # Anything but quotes and `>`.
- )*?
- )?
- > # End of tag.
- |
- # HTML Comment
- |
- <\?.*?\?> | <%.*?%> # Processing instruction
- |
- # CData Block
- )
- }xs';
-
- $original_text = $text; # Save original text in case of faliure.
-
- $depth = 0; # Current depth inside the tag tree.
- $block_text = ""; # Temporary text holder for current text.
- $parsed = ""; # Parsed text that will be returned.
-
- #
- # Get the name of the starting tag.
- # (This pattern makes $base_tag_name_re safe without quoting.)
- #
- if (preg_match('/^<([\w:$]*)\b/', $text, $matches))
- $base_tag_name_re = $matches[1];
-
- #
- # Loop through every tag until we find the corresponding closing tag.
- #
- do {
- #
- # Split the text using the first $tag_match pattern found.
- # Text before pattern will be first in the array, text after
- # pattern will be at the end, and between will be any catches made
- # by the pattern.
- #
- $parts = preg_split($tag_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
-
- if (count($parts) < 3) {
- #
- # End of $text reached with unbalenced tag(s).
- # In that case, we return original text unchanged and pass the
- # first character as filtered to prevent an infinite loop in the
- # parent function.
- #
- return array($original_text{0}, substr($original_text, 1));
- }
-
- $block_text .= $parts[0]; # Text before current tag.
- $tag = $parts[1]; # Tag to handle.
- $text = $parts[2]; # Remaining text after current tag.
-
- #
- # Check for: Auto-close tag (like )
- # Comments and Processing Instructions.
- #
- if (preg_match('{^auto_close_tags_re.')\b}', $tag) ||
- $tag{1} == '!' || $tag{1} == '?')
- {
- # Just add the tag to the block as if it was text.
- $block_text .= $tag;
- }
- else {
- #
- # Increase/decrease nested tag count. Only do so if
- # the tag's name match base tag's.
- #
- if (preg_match('{^mode = $attr_m[2] . $attr_m[3];
- $span_mode = $this->mode == 'span' || $this->mode != 'block' &&
- preg_match('{^<(?:'.$this->contain_span_tags_re.')\b}', $tag);
-
- # Calculate indent before tag.
- if (preg_match('/(?:^|\n)( *?)(?! ).*?$/', $block_text, $matches)) {
- $strlen = $this->utf8_strlen;
- $indent = call_user_func($strlen, $matches[1], 'UTF-8');
- } else {
- $indent = 0;
- }
-
- # End preceding block with this tag.
- $block_text .= $tag;
- $parsed .= $this->$hash_method($block_text);
-
- # Get enclosing tag name for the ParseMarkdown function.
- # (This pattern makes $tag_name_re safe without quoting.)
- preg_match('/^<([\w:$]*)\b/', $tag, $matches);
- $tag_name_re = $matches[1];
-
- # Parse the content using the HTML-in-Markdown parser.
- list ($block_text, $text)
- = $this->_hashHTMLBlocks_inMarkdown($text, $indent,
- $tag_name_re, $span_mode);
-
- # Outdent markdown text.
- if ($indent > 0) {
- $block_text = preg_replace("/^[ ]{1,$indent}/m", "",
- $block_text);
- }
-
- # Append tag content to parsed text.
- if (!$span_mode) $parsed .= "\n\n$block_text\n\n";
- else $parsed .= "$block_text";
-
- # Start over with a new block.
- $block_text = "";
- }
- else $block_text .= $tag;
- }
-
- } while ($depth > 0);
-
- #
- # Hash last block text that wasn't processed inside the loop.
- #
- $parsed .= $this->$hash_method($block_text);
-
- return array($parsed, $text);
- }
-
-
- protected function hashClean($text) {
- #
- # Called whenever a tag must be hashed when a function inserts a "clean" tag
- # in $text, it passes through this function and is automaticaly escaped,
- # blocking invalid nested overlap.
- #
- return $this->hashPart($text, 'C');
- }
-
-
- protected function doAnchors($text) {
- #
- # Turn Markdown link shortcuts into XHTML tags.
- #
- if ($this->in_anchor) return $text;
- $this->in_anchor = true;
-
- #
- # First, handle reference-style links: [link text] [id]
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ('.$this->nested_brackets_re.') # link text = $2
- \]
-
- [ ]? # one optional space
- (?:\n[ ]*)? # one optional newline followed by spaces
-
- \[
- (.*?) # id = $3
- \]
- )
- }xs',
- array($this, '_doAnchors_reference_callback'), $text);
-
- #
- # Next, inline-style links: [link text](url "optional title")
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ('.$this->nested_brackets_re.') # link text = $2
- \]
- \( # literal paren
- [ \n]*
- (?:
- <(.+?)> # href = $3
- |
- ('.$this->nested_url_parenthesis_re.') # href = $4
- )
- [ \n]*
- ( # $5
- ([\'"]) # quote char = $6
- (.*?) # Title = $7
- \6 # matching quote
- [ \n]* # ignore any spaces/tabs between closing quote and )
- )? # title is optional
- \)
- (?:[ ]? '.$this->id_class_attr_catch_re.' )? # $8 = id/class attributes
- )
- }xs',
- array($this, '_doAnchors_inline_callback'), $text);
-
- #
- # Last, handle reference-style shortcuts: [link text]
- # These must come last in case you've also got [link text][1]
- # or [link text](/foo)
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ([^\[\]]+) # link text = $2; can\'t contain [ or ]
- \]
- )
- }xs',
- array($this, '_doAnchors_reference_callback'), $text);
-
- $this->in_anchor = false;
- return $text;
- }
- protected function _doAnchors_reference_callback($matches) {
- $whole_match = $matches[1];
- $link_text = $matches[2];
- $link_id =& $matches[3];
-
- if ($link_id == "") {
- # for shortcut links like [this][] or [this].
- $link_id = $link_text;
- }
-
- # lower-case and turn embedded newlines into spaces
- $link_id = strtolower($link_id);
- $link_id = preg_replace('{[ ]?\n}', ' ', $link_id);
-
- if (isset($this->urls[$link_id])) {
- $url = $this->urls[$link_id];
- $url = $this->encodeAttribute($url);
-
- $result = "titles[$link_id] ) ) {
- $title = $this->titles[$link_id];
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- if (isset($this->ref_attr[$link_id]))
- $result .= $this->ref_attr[$link_id];
-
- $link_text = $this->runSpanGamut($link_text);
- $result .= ">$link_text";
- $result = $this->hashPart($result);
- }
- else {
- $result = $whole_match;
- }
- return $result;
- }
- protected function _doAnchors_inline_callback($matches) {
- $whole_match = $matches[1];
- $link_text = $this->runSpanGamut($matches[2]);
- $url = $matches[3] == '' ? $matches[4] : $matches[3];
- $title =& $matches[7];
- $attr = $this->doExtraAttributes("a", $dummy =& $matches[8]);
-
-
- $url = $this->encodeAttribute($url);
-
- $result = "encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- $result .= $attr;
-
- $link_text = $this->runSpanGamut($link_text);
- $result .= ">$link_text";
-
- return $this->hashPart($result);
- }
-
-
- protected function doImages($text) {
- #
- # Turn Markdown image shortcuts into tags.
- #
- #
- # First, handle reference-style labeled images: ![alt text][id]
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- !\[
- ('.$this->nested_brackets_re.') # alt text = $2
- \]
-
- [ ]? # one optional space
- (?:\n[ ]*)? # one optional newline followed by spaces
-
- \[
- (.*?) # id = $3
- \]
-
- )
- }xs',
- array($this, '_doImages_reference_callback'), $text);
-
- #
- # Next, handle inline images: 
- # Don't forget: encode * and _
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- !\[
- ('.$this->nested_brackets_re.') # alt text = $2
- \]
- \s? # One optional whitespace character
- \( # literal paren
- [ \n]*
- (?:
- <(\S*)> # src url = $3
- |
- ('.$this->nested_url_parenthesis_re.') # src url = $4
- )
- [ \n]*
- ( # $5
- ([\'"]) # quote char = $6
- (.*?) # title = $7
- \6 # matching quote
- [ \n]*
- )? # title is optional
- \)
- (?:[ ]? '.$this->id_class_attr_catch_re.' )? # $8 = id/class attributes
- )
- }xs',
- array($this, '_doImages_inline_callback'), $text);
-
- return $text;
- }
- protected function _doImages_reference_callback($matches) {
- $whole_match = $matches[1];
- $alt_text = $matches[2];
- $link_id = strtolower($matches[3]);
-
- if ($link_id == "") {
- $link_id = strtolower($alt_text); # for shortcut links like ![this][].
- }
-
- $alt_text = $this->encodeAttribute($alt_text);
- if (isset($this->urls[$link_id])) {
- $url = $this->encodeAttribute($this->urls[$link_id]);
- $result = "titles[$link_id])) {
- $title = $this->titles[$link_id];
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- if (isset($this->ref_attr[$link_id]))
- $result .= $this->ref_attr[$link_id];
- $result .= $this->empty_element_suffix;
- $result = $this->hashPart($result);
- }
- else {
- # If there's no such link ID, leave intact:
- $result = $whole_match;
- }
-
- return $result;
- }
- protected function _doImages_inline_callback($matches) {
- $whole_match = $matches[1];
- $alt_text = $matches[2];
- $url = $matches[3] == '' ? $matches[4] : $matches[3];
- $title =& $matches[7];
- $attr = $this->doExtraAttributes("img", $dummy =& $matches[8]);
-
- $alt_text = $this->encodeAttribute($alt_text);
- $url = $this->encodeAttribute($url);
- $result = "encodeAttribute($title);
- $result .= " title=\"$title\""; # $title already quoted
- }
- $result .= $attr;
- $result .= $this->empty_element_suffix;
-
- return $this->hashPart($result);
- }
-
-
- protected function doHeaders($text) {
- #
- # Redefined to add id and class attribute support.
- #
- # Setext-style headers:
- # Header 1 {#header1}
- # ========
- #
- # Header 2 {#header2 .class1 .class2}
- # --------
- #
- $text = preg_replace_callback(
- '{
- (^.+?) # $1: Header text
- (?:[ ]+ '.$this->id_class_attr_catch_re.' )? # $3 = id/class attributes
- [ ]*\n(=+|-+)[ ]*\n+ # $3: Header footer
- }mx',
- array($this, '_doHeaders_callback_setext'), $text);
-
- # atx-style headers:
- # # Header 1 {#header1}
- # ## Header 2 {#header2}
- # ## Header 2 with closing hashes ## {#header3.class1.class2}
- # ...
- # ###### Header 6 {.class2}
- #
- $text = preg_replace_callback('{
- ^(\#{1,6}) # $1 = string of #\'s
- [ ]*
- (.+?) # $2 = Header text
- [ ]*
- \#* # optional closing #\'s (not counted)
- (?:[ ]+ '.$this->id_class_attr_catch_re.' )? # $3 = id/class attributes
- [ ]*
- \n+
- }xm',
- array($this, '_doHeaders_callback_atx'), $text);
-
- return $text;
- }
- protected function _doHeaders_callback_setext($matches) {
- if ($matches[3] == '-' && preg_match('{^- }', $matches[1]))
- return $matches[0];
- $level = $matches[3]{0} == '=' ? 1 : 2;
- $attr = $this->doExtraAttributes("h$level", $dummy =& $matches[2]);
- $block = "".$this->runSpanGamut($matches[1])."";
- return "\n" . $this->hashBlock($block) . "\n\n";
- }
- protected function _doHeaders_callback_atx($matches) {
- $level = strlen($matches[1]);
- $attr = $this->doExtraAttributes("h$level", $dummy =& $matches[3]);
- $block = "".$this->runSpanGamut($matches[2])."";
- return "\n" . $this->hashBlock($block) . "\n\n";
- }
-
-
- protected function doTables($text) {
- #
- # Form HTML tables.
- #
- $less_than_tab = $this->tab_width - 1;
- #
- # Find tables with leading pipe.
- #
- # | Header 1 | Header 2
- # | -------- | --------
- # | Cell 1 | Cell 2
- # | Cell 3 | Cell 4
- #
- $text = preg_replace_callback('
- {
- ^ # Start of a line
- [ ]{0,'.$less_than_tab.'} # Allowed whitespace.
- [|] # Optional leading pipe (present)
- (.+) \n # $1: Header row (at least one pipe)
-
- [ ]{0,'.$less_than_tab.'} # Allowed whitespace.
- [|] ([ ]*[-:]+[-| :]*) \n # $2: Header underline
-
- ( # $3: Cells
- (?>
- [ ]* # Allowed whitespace.
- [|] .* \n # Row content.
- )*
- )
- (?=\n|\Z) # Stop at final double newline.
- }xm',
- array($this, '_doTable_leadingPipe_callback'), $text);
-
- #
- # Find tables without leading pipe.
- #
- # Header 1 | Header 2
- # -------- | --------
- # Cell 1 | Cell 2
- # Cell 3 | Cell 4
- #
- $text = preg_replace_callback('
- {
- ^ # Start of a line
- [ ]{0,'.$less_than_tab.'} # Allowed whitespace.
- (\S.*[|].*) \n # $1: Header row (at least one pipe)
-
- [ ]{0,'.$less_than_tab.'} # Allowed whitespace.
- ([-:]+[ ]*[|][-| :]*) \n # $2: Header underline
-
- ( # $3: Cells
- (?>
- .* [|] .* \n # Row content
- )*
- )
- (?=\n|\Z) # Stop at final double newline.
- }xm',
- array($this, '_DoTable_callback'), $text);
-
- return $text;
- }
- protected function _doTable_leadingPipe_callback($matches) {
- $head = $matches[1];
- $underline = $matches[2];
- $content = $matches[3];
-
- # Remove leading pipe for each row.
- $content = preg_replace('/^ *[|]/m', '', $content);
-
- return $this->_doTable_callback(array($matches[0], $head, $underline, $content));
- }
- protected function _doTable_makeAlignAttr($alignname)
- {
- if (empty($this->table_align_class_tmpl))
- return " align=\"$alignname\"";
-
- $classname = str_replace('%%', $alignname, $this->table_align_class_tmpl);
- return " class=\"$classname\"";
- }
- protected function _doTable_callback($matches) {
- $head = $matches[1];
- $underline = $matches[2];
- $content = $matches[3];
-
- # Remove any tailing pipes for each line.
- $head = preg_replace('/[|] *$/m', '', $head);
- $underline = preg_replace('/[|] *$/m', '', $underline);
- $content = preg_replace('/[|] *$/m', '', $content);
-
- # Reading alignement from header underline.
- $separators = preg_split('/ *[|] */', $underline);
- foreach ($separators as $n => $s) {
- if (preg_match('/^ *-+: *$/', $s))
- $attr[$n] = $this->_doTable_makeAlignAttr('right');
- else if (preg_match('/^ *:-+: *$/', $s))
- $attr[$n] = $this->_doTable_makeAlignAttr('center');
- else if (preg_match('/^ *:-+ *$/', $s))
- $attr[$n] = $this->_doTable_makeAlignAttr('left');
- else
- $attr[$n] = '';
- }
-
- # Parsing span elements, including code spans, character escapes,
- # and inline HTML tags, so that pipes inside those gets ignored.
- $head = $this->parseSpan($head);
- $headers = preg_split('/ *[|] */', $head);
- $col_count = count($headers);
- $attr = array_pad($attr, $col_count, '');
-
- # Write column headers.
- $text = "
";
-
- return $this->hashBlock($text) . "\n";
- }
-
-
- protected function doDefLists($text) {
- #
- # Form HTML definition lists.
- #
- $less_than_tab = $this->tab_width - 1;
-
- # Re-usable pattern to match any entire dl list:
- $whole_list_re = '(?>
- ( # $1 = whole list
- ( # $2
- [ ]{0,'.$less_than_tab.'}
- ((?>.*\S.*\n)+) # $3 = defined term
- \n?
- [ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
- )
- (?s:.+?)
- ( # $4
- \z
- |
- \n{2,}
- (?=\S)
- (?! # Negative lookahead for another term
- [ ]{0,'.$less_than_tab.'}
- (?: \S.*\n )+? # defined term
- \n?
- [ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
- )
- (?! # Negative lookahead for another definition
- [ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
- )
- )
- )
- )'; // mx
-
- $text = preg_replace_callback('{
- (?>\A\n?|(?<=\n\n))
- '.$whole_list_re.'
- }mx',
- array($this, '_doDefLists_callback'), $text);
-
- return $text;
- }
- protected function _doDefLists_callback($matches) {
- # Re-usable patterns to match list item bullets and number markers:
- $list = $matches[1];
-
- # Turn double returns into triple returns, so that we can make a
- # paragraph for the last item in a list, if necessary:
- $result = trim($this->processDefListItems($list));
- $result = "
\n" . $result . "\n
";
- return $this->hashBlock($result) . "\n\n";
- }
-
-
- protected function processDefListItems($list_str) {
- #
- # Process the contents of a single definition list, splitting it
- # into individual term and definition list items.
- #
- $less_than_tab = $this->tab_width - 1;
-
- # trim trailing blank lines:
- $list_str = preg_replace("/\n{2,}\\z/", "\n", $list_str);
-
- # Process definition terms.
- $list_str = preg_replace_callback('{
- (?>\A\n?|\n\n+) # leading line
- ( # definition terms = $1
- [ ]{0,'.$less_than_tab.'} # leading whitespace
- (?!\:[ ]|[ ]) # negative lookahead for a definition
- # mark (colon) or more whitespace.
- (?> \S.* \n)+? # actual term (not whitespace).
- )
- (?=\n?[ ]{0,3}:[ ]) # lookahead for following line feed
- # with a definition mark.
- }xm',
- array($this, '_processDefListItems_callback_dt'), $list_str);
-
- # Process actual definitions.
- $list_str = preg_replace_callback('{
- \n(\n+)? # leading line = $1
- ( # marker space = $2
- [ ]{0,'.$less_than_tab.'} # whitespace before colon
- \:[ ]+ # definition mark (colon)
- )
- ((?s:.+?)) # definition text = $3
- (?= \n+ # stop at next definition mark,
- (?: # next term or end of text
- [ ]{0,'.$less_than_tab.'} \:[ ] |
-
tags and unhashify HTML blocks
- #
- foreach ($grafs as $key => $value) {
- $value = trim($this->runSpanGamut($value));
-
- # Check if this should be enclosed in a paragraph.
- # Clean tag hashes & block tag hashes are left alone.
- $is_p = !preg_match('/^B\x1A[0-9]+B|^C\x1A[0-9]+C$/', $value);
-
- if ($is_p) {
- $value = "
$value
";
- }
- $grafs[$key] = $value;
- }
-
- # Join grafs in one text, then unhash HTML tags.
- $text = implode("\n\n", $grafs);
-
- # Finish by removing any tag hashes still present in $text.
- $text = $this->unhash($text);
-
- return $text;
- }
-
-
- ### Footnotes
-
- protected function stripFootnotes($text) {
- #
- # Strips link definitions from text, stores the URLs and titles in
- # hash references.
- #
- $less_than_tab = $this->tab_width - 1;
-
- # Link defs are in the form: [^id]: url "optional title"
- $text = preg_replace_callback('{
- ^[ ]{0,'.$less_than_tab.'}\[\^(.+?)\][ ]?: # note_id = $1
- [ ]*
- \n? # maybe *one* newline
- ( # text = $2 (no blank lines allowed)
- (?:
- .+ # actual text
- |
- \n # newlines but
- (?!\[\^.+?\]:\s)# negative lookahead for footnote marker.
- (?!\n+[ ]{0,3}\S)# ensure line is not blank and followed
- # by non-indented content
- )*
- )
- }xm',
- array($this, '_stripFootnotes_callback'),
- $text);
- return $text;
- }
- protected function _stripFootnotes_callback($matches) {
- $note_id = $this->fn_id_prefix . $matches[1];
- $this->footnotes[$note_id] = $this->outdent($matches[2]);
- return ''; # String that will replace the block
- }
-
-
- protected function doFootnotes($text) {
- #
- # Replace footnote references in $text [^id] with a special text-token
- # which will be replaced by the actual footnote marker in appendFootnotes.
- #
- if (!$this->in_anchor) {
- $text = preg_replace('{\[\^(.+?)\]}', "F\x1Afn:\\1\x1A:", $text);
- }
- return $text;
- }
-
-
- protected function appendFootnotes($text) {
- #
- # Append footnote list to text.
- #
- $text = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}',
- array($this, '_appendFootnotes_callback'), $text);
-
- if (!empty($this->footnotes_ordered)) {
- $text .= "\n\n";
- $text .= "
![\"$alt_text\"";](\"$url\")
titles[$link_id])) {
- $title = $this->titles[$link_id];
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- $result .= $this->empty_element_suffix;
- $result = $this->hashPart($result);
- }
- else {
- # If there's no such link ID, leave intact:
- $result = $whole_match;
- }
-
- return $result;
- }
- protected function _doImages_inline_callback($matches) {
- $whole_match = $matches[1];
- $alt_text = $matches[2];
- $url = $matches[3] == '' ? $matches[4] : $matches[3];
- $title =& $matches[7];
-
- $alt_text = $this->encodeAttribute($alt_text);
- $url = $this->encodeAttribute($url);
- $result = "