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37 lines
55 KiB
Plaintext
37 lines
55 KiB
Plaintext
author: JeremyRuston
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created: 20150304165352262
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creator: user
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dependants:
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description: Markdown plugin wrapping markdown-js
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modified: 20150304165540911
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modifier: user
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plugin-type: plugin
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title: $:/plugins/tiddlywiki/markdown
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type: application/json
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version: 5.1.7
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{
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"tiddlers": {
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"$:/config/markdown/dialect": {
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"title": "$:/config/markdown/dialect",
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"text": "Gruber"
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},
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"$:/language/Docs/Types/text/x-markdown": {
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"title": "$:/language/Docs/Types/text/x-markdown",
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"description": "Markdown",
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"name": "text/x-markdown"
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},
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"$:/plugins/tiddlywiki/markdown/markdown.js": {
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"type": "application/javascript",
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"title": "$:/plugins/tiddlywiki/markdown/markdown.js",
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"module-type": "library",
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"text": "// Released under MIT license\n// Copyright (c) 2009-2010 Dominic Baggott\n// Copyright (c) 2009-2010 Ash Berlin\n// Copyright (c) 2011 Christoph Dorn <christoph@christophdorn.com> (http://www.christophdorn.com)\n\n/*jshint browser:true, devel:true */\n\n(function( expose ) {\n\n/**\n * class Markdown\n *\n * Markdown processing in Javascript done right. We have very particular views\n * on what constitutes 'right' which include:\n *\n * - produces well-formed HTML (this means that em and strong nesting is\n * important)\n *\n * - has an intermediate representation to allow processing of parsed data (We\n * in fact have two, both as [JsonML]: a markdown tree and an HTML tree).\n *\n * - is easily extensible to add new dialects without having to rewrite the\n * entire parsing mechanics\n *\n * - has a good test suite\n *\n * This implementation fulfills all of these (except that the test suite could\n * do with expanding to automatically run all the fixtures from other Markdown\n * implementations.)\n *\n * ##### Intermediate Representation\n *\n * *TODO* Talk about this :) Its JsonML, but document the node names we use.\n *\n * [JsonML]: http://jsonml.org/ \"JSON Markup Language\"\n **/\nvar Markdown = expose.Markdown = function(dialect) {\n switch (typeof dialect) {\n case \"undefined\":\n this.dialect = Markdown.dialects.Gruber;\n break;\n case \"object\":\n this.dialect = dialect;\n break;\n default:\n if ( dialect in Markdown.dialects ) {\n this.dialect = Markdown.dialects[dialect];\n }\n else {\n throw new Error(\"Unknown Markdown dialect '\" + String(dialect) + \"'\");\n }\n break;\n }\n this.em_state = [];\n this.strong_state = [];\n this.debug_indent = \"\";\n};\n\n/**\n * parse( markdown, [dialect] ) -> JsonML\n * - markdown (String): markdown string to parse\n * - dialect (String | Dialect): the dialect to use, defaults to gruber\n *\n * Parse `markdown` and return a markdown document as a Markdown.JsonML tree.\n **/\nexpose.parse = function( source, dialect ) {\n // dialect will default if undefined\n var md = new Markdown( dialect );\n return md.toTree( source );\n};\n\n/**\n * toHTML( markdown, [dialect] ) -> String\n * toHTML( md_tree ) -> String\n * - markdown (String): markdown string to parse\n * - md_tree (Markdown.JsonML): parsed markdown tree\n *\n * Take markdown (either as a string or as a JsonML tree) and run it through\n * [[toHTMLTree]] then turn it into a well-formated HTML fragment.\n **/\nexpose.toHTML = function toHTML( source , dialect , options ) {\n var input = expose.toHTMLTree( source , dialect , options );\n\n return expose.renderJsonML( input );\n};\n\n/**\n * toHTMLTree( markdown, [dialect] ) -> JsonML\n * toHTMLTree( md_tree ) -> JsonML\n * - markdown (String): markdown string to parse\n * - dialect (String | Dialect): the dialect to use, defaults to gruber\n * - md_tree (Markdown.JsonML): parsed markdown tree\n *\n * Turn markdown into HTML, represented as a JsonML tree. If a string is given\n * to this function, it is first parsed into a markdown tree by calling\n * [[parse]].\n **/\nexpose.toHTMLTree = function toHTMLTree( input, dialect , options ) {\n // convert string input to an MD tree\n if ( typeof input ===\"string\" ) input = this.parse( input, dialect );\n\n // Now convert the MD tree to an HTML tree\n\n // remove references from the tree\n var attrs = extract_attr( input ),\n refs = {};\n\n if ( attrs && attrs.references ) {\n refs = attrs.references;\n }\n\n var html = convert_tree_to_html( input, refs , options );\n merge_text_nodes( html );\n return html;\n};\n\n// For Spidermonkey based engines\nfunction mk_block_toSource() {\n return \"Markdown.mk_block( \" +\n uneval(this.toString()) +\n \", \" +\n uneval(this.trailing) +\n \", \" +\n uneval(this.lineNumber) +\n \" )\";\n}\n\n// node\nfunction mk_block_inspect() {\n var util = require(\"util\");\n return \"Markdown.mk_block( \" +\n util.inspect(this.toString()) +\n \", \" +\n util.inspect(this.trailing) +\n \", \" +\n util.inspect(this.lineNumber) +\n \" )\";\n\n}\n\nvar mk_block = Markdown.mk_block = function(block, trail, line) {\n // Be helpful for default case in tests.\n if ( arguments.length == 1 ) trail = \"\\n\\n\";\n\n var s = new String(block);\n s.trailing = trail;\n // To make it clear its not just a string\n s.inspect = mk_block_inspect;\n s.toSource = mk_block_toSource;\n\n if ( line != undefined )\n s.lineNumber = line;\n\n return s;\n};\n\nfunction count_lines( str ) {\n var n = 0, i = -1;\n while ( ( i = str.indexOf(\"\\n\", i + 1) ) !== -1 ) n++;\n return n;\n}\n\n// Internal - split source into rough blocks\nMarkdown.prototype.split_blocks = function splitBlocks( input, startLine ) {\n input = input.replace(/(\\r\\n|\\n|\\r)/g, \"\\n\");\n // [\\s\\S] matches _anything_ (newline or space)\n // [^] is equivalent but doesn't work in IEs.\n var re = /([\\s\\S]+?)($|\\n#|\\n(?:\\s*\\n|$)+)/g,\n blocks = [],\n m;\n\n var line_no = 1;\n\n if ( ( m = /^(\\s*\\n)/.exec(input) ) != null ) {\n // skip (but count) leading blank lines\n line_no += count_lines( m[0] );\n re.lastIndex = m[0].length;\n }\n\n while ( ( m = re.exec(input) ) !== null ) {\n if (m[2] == \"\\n#\") {\n m[2] = \"\\n\";\n re.lastIndex--;\n }\n blocks.push( mk_block( m[1], m[2], line_no ) );\n line_no += count_lines( m[0] );\n }\n\n return blocks;\n};\n\n/**\n * Markdown#processBlock( block, next ) -> undefined | [ JsonML, ... ]\n * - block (String): the block to process\n * - next (Array): the following blocks\n *\n * Process `block` and return an array of JsonML nodes representing `block`.\n *\n * It does this by asking each block level function in the dialect to process\n * the block until one can. Succesful handling is indicated by returning an\n * array (with zero or more JsonML nodes), failure by a false value.\n *\n * Blocks handlers are responsible for calling [[Markdown#processInline]]\n * themselves as appropriate.\n *\n * If the blocks were split incorrectly or adjacent blocks need collapsing you\n * can adjust `next` in place using shift/splice etc.\n *\n * If any of this default behaviour is not right for the dialect, you can\n * define a `__call__` method on the dialect that will get invoked to handle\n * the block processing.\n */\nMarkdown.prototype.processBlock = function processBlock( block, next ) {\n var cbs = this.dialect.block,\n ord = cbs.__order__;\n\n if ( \"__call__\" in cbs ) {\n return cbs.__call__.call(this, block, next);\n }\n\n for ( var i = 0; i < ord.length; i++ ) {\n //D:this.debug( \"Testing\", ord[i] );\n var res = cbs[ ord[i] ].call( this, block, next );\n if ( res ) {\n //D:this.debug(\" matched\");\n if ( !isArray(res) || ( res.length > 0 && !( isArray(res[0]) ) ) )\n this.debug(ord[i], \"didn't return a proper array\");\n //D:this.debug( \"\" );\n return res;\n }\n }\n\n // Uhoh! no match! Should we throw an error?\n return [];\n};\n\nMarkdown.prototype.processInline = function processInline( block ) {\n return this.dialect.inline.__call__.call( this, String( block ) );\n};\n\n/**\n * Markdown#toTree( source ) -> JsonML\n * - source (String): markdown source to parse\n *\n * Parse `source` into a JsonML tree representing the markdown document.\n **/\n// custom_tree means set this.tree to `custom_tree` and restore old value on return\nMarkdown.prototype.toTree = function toTree( source, custom_root ) {\n var blocks = source instanceof Array ? source : this.split_blocks( source );\n\n // Make tree a member variable so its easier to mess with in extensions\n var old_tree = this.tree;\n try {\n this.tree = custom_root || this.tree || [ \"markdown\" ];\n\n blocks:\n while ( blocks.length ) {\n var b = this.processBlock( blocks.shift(), blocks );\n\n // Reference blocks and the like won't return any content\n if ( !b.length ) continue blocks;\n\n this.tree.push.apply( this.tree, b );\n }\n return this.tree;\n }\n finally {\n if ( custom_root ) {\n this.tree = old_tree;\n }\n }\n};\n\n// Noop by default\nMarkdown.prototype.debug = function () {\n var args = Array.prototype.slice.call( arguments);\n args.unshift(this.debug_indent);\n if ( typeof print !== \"undefined\" )\n print.apply( print, args );\n if ( typeof console !== \"undefined\" && typeof console.log !== \"undefined\" )\n console.log.apply( null, args );\n}\n\nMarkdown.prototype.loop_re_over_block = function( re, block, cb ) {\n // Dont use /g regexps with this\n var m,\n b = block.valueOf();\n\n while ( b.length && (m = re.exec(b) ) != null ) {\n b = b.substr( m[0].length );\n cb.call(this, m);\n }\n return b;\n};\n\n/**\n * Markdown.dialects\n *\n * Namespace of built-in dialects.\n **/\nMarkdown.dialects = {};\n\n/**\n * Markdown.dialects.Gruber\n *\n * The default dialect that follows the rules set out by John Gruber's\n * markdown.pl as closely as possible. Well actually we follow the behaviour of\n * that script which in some places is not exactly what the syntax web page\n * says.\n **/\nMarkdown.dialects.Gruber = {\n block: {\n atxHeader: function atxHeader( block, next ) {\n var m = block.match( /^(#{1,6})\\s*(.*?)\\s*#*\\s*(?:\\n|$)/ );\n\n if ( !m ) return undefined;\n\n var header = [ \"header\", { level: m[ 1 ].length } ];\n Array.prototype.push.apply(header, this.processInline(m[ 2 ]));\n\n if ( m[0].length < block.length )\n next.unshift( mk_block( block.substr( m[0].length ), block.trailing, block.lineNumber + 2 ) );\n\n return [ header ];\n },\n\n setextHeader: function setextHeader( block, next ) {\n var m = block.match( /^(.*)\\n([-=])\\2\\2+(?:\\n|$)/ );\n\n if ( !m ) return undefined;\n\n var level = ( m[ 2 ] === \"=\" ) ? 1 : 2;\n var header = [ \"header\", { level : level }, m[ 1 ] ];\n\n if ( m[0].length < block.length )\n next.unshift( mk_block( block.substr( m[0].length ), block.trailing, block.lineNumber + 2 ) );\n\n return [ header ];\n },\n\n code: function code( block, next ) {\n // | Foo\n // |bar\n // should be a code block followed by a paragraph. Fun\n //\n // There might also be adjacent code block to merge.\n\n var ret = [],\n re = /^(?: {0,3}\\t| {4})(.*)\\n?/,\n lines;\n\n // 4 spaces + content\n if ( !block.match( re ) ) return undefined;\n\n block_search:\n do {\n // Now pull out the rest of the lines\n var b = this.loop_re_over_block(\n re, block.valueOf(), function( m ) { ret.push( m[1] ); } );\n\n if ( b.length ) {\n // Case alluded to in first comment. push it back on as a new block\n next.unshift( mk_block(b, block.trailing) );\n break block_search;\n }\n else if ( next.length ) {\n // Check the next block - it might be code too\n if ( !next[0].match( re ) ) break block_search;\n\n // Pull how how many blanks lines follow - minus two to account for .join\n ret.push ( block.trailing.replace(/[^\\n]/g, \"\").substring(2) );\n\n block = next.shift();\n }\n else {\n break block_search;\n }\n } while ( true );\n\n return [ [ \"code_block\", ret.join(\"\\n\") ] ];\n },\n\n horizRule: function horizRule( block, next ) {\n // this needs to find any hr in the block to handle abutting blocks\n var m = block.match( /^(?:([\\s\\S]*?)\\n)?[ \\t]*([-_*])(?:[ \\t]*\\2){2,}[ \\t]*(?:\\n([\\s\\S]*))?$/ );\n\n if ( !m ) {\n return undefined;\n }\n\n var jsonml = [ [ \"hr\" ] ];\n\n // if there's a leading abutting block, process it\n if ( m[ 1 ] ) {\n jsonml.unshift.apply( jsonml, this.processBlock( m[ 1 ], [] ) );\n }\n\n // if there's a trailing abutting block, stick it into next\n if ( m[ 3 ] ) {\n next.unshift( mk_block( m[ 3 ] ) );\n }\n\n return jsonml;\n },\n\n // There are two types of lists. Tight and loose. Tight lists have no whitespace\n // between the items (and result in text just in the <li>) and loose lists,\n // which have an empty line between list items, resulting in (one or more)\n // paragraphs inside the <li>.\n //\n // There are all sorts weird edge cases about the original markdown.pl's\n // handling of lists:\n //\n // * Nested lists are supposed to be indented by four chars per level. But\n // if they aren't, you can get a nested list by indenting by less than\n // four so long as the indent doesn't match an indent of an existing list\n // item in the 'nest stack'.\n //\n // * The type of the list (bullet or number) is controlled just by the\n // first item at the indent. Subsequent changes are ignored unless they\n // are for nested lists\n //\n lists: (function( ) {\n // Use a closure to hide a few variables.\n var any_list = \"[*+-]|\\\\d+\\\\.\",\n bullet_list = /[*+-]/,\n number_list = /\\d+\\./,\n // Capture leading indent as it matters for determining nested lists.\n is_list_re = new RegExp( \"^( {0,3})(\" + any_list + \")[ \\t]+\" ),\n indent_re = \"(?: {0,3}\\\\t| {4})\";\n\n // TODO: Cache this regexp for certain depths.\n // Create a regexp suitable for matching an li for a given stack depth\n function regex_for_depth( depth ) {\n\n return new RegExp(\n // m[1] = indent, m[2] = list_type\n \"(?:^(\" + indent_re + \"{0,\" + depth + \"} {0,3})(\" + any_list + \")\\\\s+)|\" +\n // m[3] = cont\n \"(^\" + indent_re + \"{0,\" + (depth-1) + \"}[ ]{0,4})\"\n );\n }\n function expand_tab( input ) {\n return input.replace( / {0,3}\\t/g, \" \" );\n }\n\n // Add inline content `inline` to `li`. inline comes from processInline\n // so is an array of content\n function add(li, loose, inline, nl) {\n if ( loose ) {\n li.push( [ \"para\" ].concat(inline) );\n return;\n }\n // Hmmm, should this be any block level element or just paras?\n var add_to = li[li.length -1] instanceof Array && li[li.length - 1][0] == \"para\"\n ? li[li.length -1]\n : li;\n\n // If there is already some content in this list, add the new line in\n if ( nl && li.length > 1 ) inline.unshift(nl);\n\n for ( var i = 0; i < inline.length; i++ ) {\n var what = inline[i],\n is_str = typeof what == \"string\";\n if ( is_str && add_to.length > 1 && typeof add_to[add_to.length-1] == \"string\" ) {\n add_to[ add_to.length-1 ] += what;\n }\n else {\n add_to.push( what );\n }\n }\n }\n\n // contained means have an indent greater than the current one. On\n // *every* line in the block\n function get_contained_blocks( depth, blocks ) {\n\n var re = new RegExp( \"^(\" + indent_re + \"{\" + depth + \"}.*?\\\\n?)*$\" ),\n replace = new RegExp(\"^\" + indent_re + \"{\" + depth + \"}\", \"gm\"),\n ret = [];\n\n while ( blocks.length > 0 ) {\n if ( re.exec( blocks[0] ) ) {\n var b = blocks.shift(),\n // Now remove that indent\n x = b.replace( replace, \"\");\n\n ret.push( mk_block( x, b.trailing, b.lineNumber ) );\n }\n else {\n break;\n }\n }\n return ret;\n }\n\n // passed to stack.forEach to turn list items up the stack into paras\n function paragraphify(s, i, stack) {\n var list = s.list;\n var last_li = list[list.length-1];\n\n if ( last_li[1] instanceof Array && last_li[1][0] == \"para\" ) {\n return;\n }\n if ( i + 1 == stack.length ) {\n // Last stack frame\n // Keep the same array, but replace the contents\n last_li.push( [\"para\"].concat( last_li.splice(1, last_li.length - 1) ) );\n }\n else {\n var sublist = last_li.pop();\n last_li.push( [\"para\"].concat( last_li.splice(1, last_li.length - 1) ), sublist );\n }\n }\n\n // The matcher function\n return function( block, next ) {\n var m = block.match( is_list_re );\n if ( !m ) return undefined;\n\n function make_list( m ) {\n var list = bullet_list.exec( m[2] )\n ? [\"bulletlist\"]\n : [\"numberlist\"];\n\n stack.push( { list: list, indent: m[1] } );\n return list;\n }\n\n\n var stack = [], // Stack of lists for nesting.\n list = make_list( m ),\n last_li,\n loose = false,\n ret = [ stack[0].list ],\n i;\n\n // Loop to search over block looking for inner block elements and loose lists\n loose_search:\n while ( true ) {\n // Split into lines preserving new lines at end of line\n var lines = block.split( /(?=\\n)/ );\n\n // We have to grab all lines for a li and call processInline on them\n // once as there are some inline things that can span lines.\n var li_accumulate = \"\";\n\n // Loop over the lines in this block looking for tight lists.\n tight_search:\n for ( var line_no = 0; line_no < lines.length; line_no++ ) {\n var nl = \"\",\n l = lines[line_no].replace(/^\\n/, function(n) { nl = n; return \"\"; });\n\n // TODO: really should cache this\n var line_re = regex_for_depth( stack.length );\n\n m = l.match( line_re );\n //print( \"line:\", uneval(l), \"\\nline match:\", uneval(m) );\n\n // We have a list item\n if ( m[1] !== undefined ) {\n // Process the previous list item, if any\n if ( li_accumulate.length ) {\n add( last_li, loose, this.processInline( li_accumulate ), nl );\n // Loose mode will have been dealt with. Reset it\n loose = false;\n li_accumulate = \"\";\n }\n\n m[1] = expand_tab( m[1] );\n var wanted_depth = Math.floor(m[1].length/4)+1;\n //print( \"want:\", wanted_depth, \"stack:\", stack.length);\n if ( wanted_depth > stack.length ) {\n // Deep enough for a nested list outright\n //print ( \"new nested list\" );\n list = make_list( m );\n last_li.push( list );\n last_li = list[1] = [ \"listitem\" ];\n }\n else {\n // We aren't deep enough to be strictly a new level. This is\n // where Md.pl goes nuts. If the indent matches a level in the\n // stack, put it there, else put it one deeper then the\n // wanted_depth deserves.\n var found = false;\n for ( i = 0; i < stack.length; i++ ) {\n if ( stack[ i ].indent != m[1] ) continue;\n list = stack[ i ].list;\n stack.splice( i+1, stack.length - (i+1) );\n found = true;\n break;\n }\n\n if (!found) {\n //print(\"not found. l:\", uneval(l));\n wanted_depth++;\n if ( wanted_depth <= stack.length ) {\n stack.splice(wanted_depth, stack.length - wanted_depth);\n //print(\"Desired depth now\", wanted_depth, \"stack:\", stack.length);\n list = stack[wanted_depth-1].list;\n //print(\"list:\", uneval(list) );\n }\n else {\n //print (\"made new stack for messy indent\");\n list = make_list(m);\n last_li.push(list);\n }\n }\n\n //print( uneval(list), \"last\", list === stack[stack.length-1].list );\n last_li = [ \"listitem\" ];\n list.push(last_li);\n } // end depth of shenegains\n nl = \"\";\n }\n\n // Add content\n if ( l.length > m[0].length ) {\n li_accumulate += nl + l.substr( m[0].length );\n }\n } // tight_search\n\n if ( li_accumulate.length ) {\n add( last_li, loose, this.processInline( li_accumulate ), nl );\n // Loose mode will have been dealt with. Reset it\n loose = false;\n li_accumulate = \"\";\n }\n\n // Look at the next block - we might have a loose list. Or an extra\n // paragraph for the current li\n var contained = get_contained_blocks( stack.length, next );\n\n // Deal with code blocks or properly nested lists\n if ( contained.length > 0 ) {\n // Make sure all listitems up the stack are paragraphs\n forEach( stack, paragraphify, this);\n\n last_li.push.apply( last_li, this.toTree( contained, [] ) );\n }\n\n var next_block = next[0] && next[0].valueOf() || \"\";\n\n if ( next_block.match(is_list_re) || next_block.match( /^ / ) ) {\n block = next.shift();\n\n // Check for an HR following a list: features/lists/hr_abutting\n var hr = this.dialect.block.horizRule( block, next );\n\n if ( hr ) {\n ret.push.apply(ret, hr);\n break;\n }\n\n // Make sure all listitems up the stack are paragraphs\n forEach( stack, paragraphify, this);\n\n loose = true;\n continue loose_search;\n }\n break;\n } // loose_search\n\n return ret;\n };\n })(),\n\n blockquote: function blockquote( block, next ) {\n if ( !block.match( /^>/m ) )\n return undefined;\n\n var jsonml = [];\n\n // separate out the leading abutting block, if any. I.e. in this case:\n //\n // a\n // > b\n //\n if ( block[ 0 ] != \">\" ) {\n var lines = block.split( /\\n/ ),\n prev = [],\n line_no = block.lineNumber;\n\n // keep shifting lines until you find a crotchet\n while ( lines.length && lines[ 0 ][ 0 ] != \">\" ) {\n prev.push( lines.shift() );\n line_no++;\n }\n\n var abutting = mk_block( prev.join( \"\\n\" ), \"\\n\", block.lineNumber );\n jsonml.push.apply( jsonml, this.processBlock( abutting, [] ) );\n // reassemble new block of just block quotes!\n block = mk_block( lines.join( \"\\n\" ), block.trailing, line_no );\n }\n\n\n // if the next block is also a blockquote merge it in\n while ( next.length && next[ 0 ][ 0 ] == \">\" ) {\n var b = next.shift();\n block = mk_block( block + block.trailing + b, b.trailing, block.lineNumber );\n }\n\n // Strip off the leading \"> \" and re-process as a block.\n var input = block.replace( /^> ?/gm, \"\" ),\n old_tree = this.tree,\n processedBlock = this.toTree( input, [ \"blockquote\" ] ),\n attr = extract_attr( processedBlock );\n\n // If any link references were found get rid of them\n if ( attr && attr.references ) {\n delete attr.references;\n // And then remove the attribute object if it's empty\n if ( isEmpty( attr ) ) {\n processedBlock.splice( 1, 1 );\n }\n }\n\n jsonml.push( processedBlock );\n return jsonml;\n },\n\n referenceDefn: function referenceDefn( block, next) {\n var re = /^\\s*\\[(.*?)\\]:\\s*(\\S+)(?:\\s+(?:(['\"])(.*?)\\3|\\((.*?)\\)))?\\n?/;\n // interesting matches are [ , ref_id, url, , title, title ]\n\n if ( !block.match(re) )\n return undefined;\n\n // make an attribute node if it doesn't exist\n if ( !extract_attr( this.tree ) ) {\n this.tree.splice( 1, 0, {} );\n }\n\n var attrs = extract_attr( this.tree );\n\n // make a references hash if it doesn't exist\n if ( attrs.references === undefined ) {\n attrs.references = {};\n }\n\n var b = this.loop_re_over_block(re, block, function( m ) {\n\n if ( m[2] && m[2][0] == \"<\" && m[2][m[2].length-1] == \">\" )\n m[2] = m[2].substring( 1, m[2].length - 1 );\n\n var ref = attrs.references[ m[1].toLowerCase() ] = {\n href: m[2]\n };\n\n if ( m[4] !== undefined )\n ref.title = m[4];\n else if ( m[5] !== undefined )\n ref.title = m[5];\n\n } );\n\n if ( b.length )\n next.unshift( mk_block( b, block.trailing ) );\n\n return [];\n },\n\n para: function para( block, next ) {\n // everything's a para!\n return [ [\"para\"].concat( this.processInline( block ) ) ];\n }\n }\n};\n\nMarkdown.dialects.Gruber.inline = {\n\n __oneElement__: function oneElement( text, patterns_or_re, previous_nodes ) {\n var m,\n res,\n lastIndex = 0;\n\n patterns_or_re = patterns_or_re || this.dialect.inline.__patterns__;\n var re = new RegExp( \"([\\\\s\\\\S]*?)(\" + (patterns_or_re.source || patterns_or_re) + \")\" );\n\n m = re.exec( text );\n if (!m) {\n // Just boring text\n return [ text.length, text ];\n }\n else if ( m[1] ) {\n // Some un-interesting text matched. Return that first\n return [ m[1].length, m[1] ];\n }\n\n var res;\n if ( m[2] in this.dialect.inline ) {\n res = this.dialect.inline[ m[2] ].call(\n this,\n text.substr( m.index ), m, previous_nodes || [] );\n }\n // Default for now to make dev easier. just slurp special and output it.\n res = res || [ m[2].length, m[2] ];\n return res;\n },\n\n __call__: function inline( text, patterns ) {\n\n var out = [],\n res;\n\n function add(x) {\n //D:self.debug(\" adding output\", uneval(x));\n if ( typeof x == \"string\" && typeof out[out.length-1] == \"string\" )\n out[ out.length-1 ] += x;\n else\n out.push(x);\n }\n\n while ( text.length > 0 ) {\n res = this.dialect.inline.__oneElement__.call(this, text, patterns, out );\n text = text.substr( res.shift() );\n forEach(res, add )\n }\n\n return out;\n },\n\n // These characters are intersting elsewhere, so have rules for them so that\n // chunks of plain text blocks don't include them\n \"]\": function () {},\n \"}\": function () {},\n\n __escape__ : /^\\\\[\\\\`\\*_{}\\[\\]()#\\+.!\\-]/,\n\n \"\\\\\": function escaped( text ) {\n // [ length of input processed, node/children to add... ]\n // Only esacape: \\ ` * _ { } [ ] ( ) # * + - . !\n if ( this.dialect.inline.__escape__.exec( text ) )\n return [ 2, text.charAt( 1 ) ];\n else\n // Not an esacpe\n return [ 1, \"\\\\\" ];\n },\n\n \"![\": function image( text ) {\n\n // Unlike images, alt text is plain text only. no other elements are\n // allowed in there\n\n // ![Alt text](/path/to/img.jpg \"Optional title\")\n // 1 2 3 4 <--- captures\n var m = text.match( /^!\\[(.*?)\\][ \\t]*\\([ \\t]*([^\")]*?)(?:[ \\t]+([\"'])(.*?)\\3)?[ \\t]*\\)/ );\n\n if ( m ) {\n if ( m[2] && m[2][0] == \"<\" && m[2][m[2].length-1] == \">\" )\n m[2] = m[2].substring( 1, m[2].length - 1 );\n\n m[2] = this.dialect.inline.__call__.call( this, m[2], /\\\\/ )[0];\n\n var attrs = { alt: m[1], href: m[2] || \"\" };\n if ( m[4] !== undefined)\n attrs.title = m[4];\n\n return [ m[0].length, [ \"img\", attrs ] ];\n }\n\n // ![Alt text][id]\n m = text.match( /^!\\[(.*?)\\][ \\t]*\\[(.*?)\\]/ );\n\n if ( m ) {\n // We can't check if the reference is known here as it likely wont be\n // found till after. Check it in md tree->hmtl tree conversion\n return [ m[0].length, [ \"img_ref\", { alt: m[1], ref: m[2].toLowerCase(), original: m[0] } ] ];\n }\n\n // Just consume the '!['\n return [ 2, \"![\" ];\n },\n\n \"[\": function link( text ) {\n\n var orig = String(text);\n // Inline content is possible inside `link text`\n var res = Markdown.DialectHelpers.inline_until_char.call( this, text.substr(1), \"]\" );\n\n // No closing ']' found. Just consume the [\n if ( !res ) return [ 1, \"[\" ];\n\n var consumed = 1 + res[ 0 ],\n children = res[ 1 ],\n link,\n attrs;\n\n // At this point the first [...] has been parsed. See what follows to find\n // out which kind of link we are (reference or direct url)\n text = text.substr( consumed );\n\n // [link text](/path/to/img.jpg \"Optional title\")\n // 1 2 3 <--- captures\n // This will capture up to the last paren in the block. We then pull\n // back based on if there a matching ones in the url\n // ([here](/url/(test))\n // The parens have to be balanced\n var m = text.match( /^\\s*\\([ \\t]*([^\"']*)(?:[ \\t]+([\"'])(.*?)\\2)?[ \\t]*\\)/ );\n if ( m ) {\n var url = m[1];\n consumed += m[0].length;\n\n if ( url && url[0] == \"<\" && url[url.length-1] == \">\" )\n url = url.substring( 1, url.length - 1 );\n\n // If there is a title we don't have to worry about parens in the url\n if ( !m[3] ) {\n var open_parens = 1; // One open that isn't in the capture\n for ( var len = 0; len < url.length; len++ ) {\n switch ( url[len] ) {\n case \"(\":\n open_parens++;\n break;\n case \")\":\n if ( --open_parens == 0) {\n consumed -= url.length - len;\n url = url.substring(0, len);\n }\n break;\n }\n }\n }\n\n // Process escapes only\n url = this.dialect.inline.__call__.call( this, url, /\\\\/ )[0];\n\n attrs = { href: url || \"\" };\n if ( m[3] !== undefined)\n attrs.title = m[3];\n\n link = [ \"link\", attrs ].concat( children );\n return [ consumed, link ];\n }\n\n // [Alt text][id]\n // [Alt text] [id]\n m = text.match( /^\\s*\\[(.*?)\\]/ );\n\n if ( m ) {\n\n consumed += m[ 0 ].length;\n\n // [links][] uses links as its reference\n attrs = { ref: ( m[ 1 ] || String(children) ).toLowerCase(), original: orig.substr( 0, consumed ) };\n\n link = [ \"link_ref\", attrs ].concat( children );\n\n // We can't check if the reference is known here as it likely wont be\n // found till after. Check it in md tree->hmtl tree conversion.\n // Store the original so that conversion can revert if the ref isn't found.\n return [ consumed, link ];\n }\n\n // [id]\n // Only if id is plain (no formatting.)\n if ( children.length == 1 && typeof children[0] == \"string\" ) {\n\n attrs = { ref: children[0].toLowerCase(), original: orig.substr( 0, consumed ) };\n link = [ \"link_ref\", attrs, children[0] ];\n return [ consumed, link ];\n }\n\n // Just consume the \"[\"\n return [ 1, \"[\" ];\n },\n\n\n \"<\": function autoLink( text ) {\n var m;\n\n if ( ( m = text.match( /^<(?:((https?|ftp|mailto):[^>]+)|(.*?@.*?\\.[a-zA-Z]+))>/ ) ) != null ) {\n if ( m[3] ) {\n return [ m[0].length, [ \"link\", { href: \"mailto:\" + m[3] }, m[3] ] ];\n\n }\n else if ( m[2] == \"mailto\" ) {\n return [ m[0].length, [ \"link\", { href: m[1] }, m[1].substr(\"mailto:\".length ) ] ];\n }\n else\n return [ m[0].length, [ \"link\", { href: m[1] }, m[1] ] ];\n }\n\n return [ 1, \"<\" ];\n },\n\n \"`\": function inlineCode( text ) {\n // Inline code block. as many backticks as you like to start it\n // Always skip over the opening ticks.\n var m = text.match( /(`+)(([\\s\\S]*?)\\1)/ );\n\n if ( m && m[2] )\n return [ m[1].length + m[2].length, [ \"inlinecode\", m[3] ] ];\n else {\n // TODO: No matching end code found - warn!\n return [ 1, \"`\" ];\n }\n },\n\n \" \\n\": function lineBreak( text ) {\n return [ 3, [ \"linebreak\" ] ];\n }\n\n};\n\n// Meta Helper/generator method for em and strong handling\nfunction strong_em( tag, md ) {\n\n var state_slot = tag + \"_state\",\n other_slot = tag == \"strong\" ? \"em_state\" : \"strong_state\";\n\n function CloseTag(len) {\n this.len_after = len;\n this.name = \"close_\" + md;\n }\n\n return function ( text, orig_match ) {\n\n if ( this[state_slot][0] == md ) {\n // Most recent em is of this type\n //D:this.debug(\"closing\", md);\n this[state_slot].shift();\n\n // \"Consume\" everything to go back to the recrusion in the else-block below\n return[ text.length, new CloseTag(text.length-md.length) ];\n }\n else {\n // Store a clone of the em/strong states\n var other = this[other_slot].slice(),\n state = this[state_slot].slice();\n\n this[state_slot].unshift(md);\n\n //D:this.debug_indent += \" \";\n\n // Recurse\n var res = this.processInline( text.substr( md.length ) );\n //D:this.debug_indent = this.debug_indent.substr(2);\n\n var last = res[res.length - 1];\n\n //D:this.debug(\"processInline from\", tag + \": \", uneval( res ) );\n\n var check = this[state_slot].shift();\n if ( last instanceof CloseTag ) {\n res.pop();\n // We matched! Huzzah.\n var consumed = text.length - last.len_after;\n return [ consumed, [ tag ].concat(res) ];\n }\n else {\n // Restore the state of the other kind. We might have mistakenly closed it.\n this[other_slot] = other;\n this[state_slot] = state;\n\n // We can't reuse the processed result as it could have wrong parsing contexts in it.\n return [ md.length, md ];\n }\n }\n }; // End returned function\n}\n\nMarkdown.dialects.Gruber.inline[\"**\"] = strong_em(\"strong\", \"**\");\nMarkdown.dialects.Gruber.inline[\"__\"] = strong_em(\"strong\", \"__\");\nMarkdown.dialects.Gruber.inline[\"*\"] = strong_em(\"em\", \"*\");\nMarkdown.dialects.Gruber.inline[\"_\"] = strong_em(\"em\", \"_\");\n\n\n// Build default order from insertion order.\nMarkdown.buildBlockOrder = function(d) {\n var ord = [];\n for ( var i in d ) {\n if ( i == \"__order__\" || i == \"__call__\" ) continue;\n ord.push( i );\n }\n d.__order__ = ord;\n};\n\n// Build patterns for inline matcher\nMarkdown.buildInlinePatterns = function(d) {\n var patterns = [];\n\n for ( var i in d ) {\n // __foo__ is reserved and not a pattern\n if ( i.match( /^__.*__$/) ) continue;\n var l = i.replace( /([\\\\.*+?|()\\[\\]{}])/g, \"\\\\$1\" )\n .replace( /\\n/, \"\\\\n\" );\n patterns.push( i.length == 1 ? l : \"(?:\" + l + \")\" );\n }\n\n patterns = patterns.join(\"|\");\n d.__patterns__ = patterns;\n //print(\"patterns:\", uneval( patterns ) );\n\n var fn = d.__call__;\n d.__call__ = function(text, pattern) {\n if ( pattern != undefined ) {\n return fn.call(this, text, pattern);\n }\n else\n {\n return fn.call(this, text, patterns);\n }\n };\n};\n\nMarkdown.DialectHelpers = {};\nMarkdown.DialectHelpers.inline_until_char = function( text, want ) {\n var consumed = 0,\n nodes = [];\n\n while ( true ) {\n if ( text.charAt( consumed ) == want ) {\n // Found the character we were looking for\n consumed++;\n return [ consumed, nodes ];\n }\n\n if ( consumed >= text.length ) {\n // No closing char found. Abort.\n return null;\n }\n\n var res = this.dialect.inline.__oneElement__.call(this, text.substr( consumed ) );\n consumed += res[ 0 ];\n // Add any returned nodes.\n nodes.push.apply( nodes, res.slice( 1 ) );\n }\n}\n\n// Helper function to make sub-classing a dialect easier\nMarkdown.subclassDialect = function( d ) {\n function Block() {}\n Block.prototype = d.block;\n function Inline() {}\n Inline.prototype = d.inline;\n\n return { block: new Block(), inline: new Inline() };\n};\n\nMarkdown.buildBlockOrder ( Markdown.dialects.Gruber.block );\nMarkdown.buildInlinePatterns( Markdown.dialects.Gruber.inline );\n\nMarkdown.dialects.Maruku = Markdown.subclassDialect( Markdown.dialects.Gruber );\n\nMarkdown.dialects.Maruku.processMetaHash = function processMetaHash( meta_string ) {\n var meta = split_meta_hash( meta_string ),\n attr = {};\n\n for ( var i = 0; i < meta.length; ++i ) {\n // id: #foo\n if ( /^#/.test( meta[ i ] ) ) {\n attr.id = meta[ i ].substring( 1 );\n }\n // class: .foo\n else if ( /^\\./.test( meta[ i ] ) ) {\n // if class already exists, append the new one\n if ( attr[\"class\"] ) {\n attr[\"class\"] = attr[\"class\"] + meta[ i ].replace( /./, \" \" );\n }\n else {\n attr[\"class\"] = meta[ i ].substring( 1 );\n }\n }\n // attribute: foo=bar\n else if ( /\\=/.test( meta[ i ] ) ) {\n var s = meta[ i ].split( /\\=/ );\n attr[ s[ 0 ] ] = s[ 1 ];\n }\n }\n\n return attr;\n}\n\nfunction split_meta_hash( meta_string ) {\n var meta = meta_string.split( \"\" ),\n parts = [ \"\" ],\n in_quotes = false;\n\n while ( meta.length ) {\n var letter = meta.shift();\n switch ( letter ) {\n case \" \" :\n // if we're in a quoted section, keep it\n if ( in_quotes ) {\n parts[ parts.length - 1 ] += letter;\n }\n // otherwise make a new part\n else {\n parts.push( \"\" );\n }\n break;\n case \"'\" :\n case '\"' :\n // reverse the quotes and move straight on\n in_quotes = !in_quotes;\n break;\n case \"\\\\\" :\n // shift off the next letter to be used straight away.\n // it was escaped so we'll keep it whatever it is\n letter = meta.shift();\n default :\n parts[ parts.length - 1 ] += letter;\n break;\n }\n }\n\n return parts;\n}\n\nMarkdown.dialects.Maruku.block.document_meta = function document_meta( block, next ) {\n // we're only interested in the first block\n if ( block.lineNumber > 1 ) return undefined;\n\n // document_meta blocks consist of one or more lines of `Key: Value\\n`\n if ( ! block.match( /^(?:\\w+:.*\\n)*\\w+:.*$/ ) ) return undefined;\n\n // make an attribute node if it doesn't exist\n if ( !extract_attr( this.tree ) ) {\n this.tree.splice( 1, 0, {} );\n }\n\n var pairs = block.split( /\\n/ );\n for ( p in pairs ) {\n var m = pairs[ p ].match( /(\\w+):\\s*(.*)$/ ),\n key = m[ 1 ].toLowerCase(),\n value = m[ 2 ];\n\n this.tree[ 1 ][ key ] = value;\n }\n\n // document_meta produces no content!\n return [];\n};\n\nMarkdown.dialects.Maruku.block.block_meta = function block_meta( block, next ) {\n // check if the last line of the block is an meta hash\n var m = block.match( /(^|\\n) {0,3}\\{:\\s*((?:\\\\\\}|[^\\}])*)\\s*\\}$/ );\n if ( !m ) return undefined;\n\n // process the meta hash\n var attr = this.dialect.processMetaHash( m[ 2 ] );\n\n var hash;\n\n // if we matched ^ then we need to apply meta to the previous block\n if ( m[ 1 ] === \"\" ) {\n var node = this.tree[ this.tree.length - 1 ];\n hash = extract_attr( node );\n\n // if the node is a string (rather than JsonML), bail\n if ( typeof node === \"string\" ) return undefined;\n\n // create the attribute hash if it doesn't exist\n if ( !hash ) {\n hash = {};\n node.splice( 1, 0, hash );\n }\n\n // add the attributes in\n for ( a in attr ) {\n hash[ a ] = attr[ a ];\n }\n\n // return nothing so the meta hash is removed\n return [];\n }\n\n // pull the meta hash off the block and process what's left\n var b = block.replace( /\\n.*$/, \"\" ),\n result = this.processBlock( b, [] );\n\n // get or make the attributes hash\n hash = extract_attr( result[ 0 ] );\n if ( !hash ) {\n hash = {};\n result[ 0 ].splice( 1, 0, hash );\n }\n\n // attach the attributes to the block\n for ( a in attr ) {\n hash[ a ] = attr[ a ];\n }\n\n return result;\n};\n\nMarkdown.dialects.Maruku.block.definition_list = function definition_list( block, next ) {\n // one or more terms followed by one or more definitions, in a single block\n var tight = /^((?:[^\\s:].*\\n)+):\\s+([\\s\\S]+)$/,\n list = [ \"dl\" ],\n i, m;\n\n // see if we're dealing with a tight or loose block\n if ( ( m = block.match( tight ) ) ) {\n // pull subsequent tight DL blocks out of `next`\n var blocks = [ block ];\n while ( next.length && tight.exec( next[ 0 ] ) ) {\n blocks.push( next.shift() );\n }\n\n for ( var b = 0; b < blocks.length; ++b ) {\n var m = blocks[ b ].match( tight ),\n terms = m[ 1 ].replace( /\\n$/, \"\" ).split( /\\n/ ),\n defns = m[ 2 ].split( /\\n:\\s+/ );\n\n // print( uneval( m ) );\n\n for ( i = 0; i < terms.length; ++i ) {\n list.push( [ \"dt\", terms[ i ] ] );\n }\n\n for ( i = 0; i < defns.length; ++i ) {\n // run inline processing over the definition\n list.push( [ \"dd\" ].concat( this.processInline( defns[ i ].replace( /(\\n)\\s+/, \"$1\" ) ) ) );\n }\n }\n }\n else {\n return undefined;\n }\n\n return [ list ];\n};\n\n// splits on unescaped instances of @ch. If @ch is not a character the result\n// can be unpredictable\n\nMarkdown.dialects.Maruku.block.table = function table (block, next) {\n\n var _split_on_unescaped = function(s, ch) {\n ch = ch || '\\\\s';\n if (ch.match(/^[\\\\|\\[\\]{}?*.+^$]$/)) { ch = '\\\\' + ch; }\n var res = [ ],\n r = new RegExp('^((?:\\\\\\\\.|[^\\\\\\\\' + ch + '])*)' + ch + '(.*)'),\n m;\n while(m = s.match(r)) {\n res.push(m[1]);\n s = m[2];\n }\n res.push(s);\n return res;\n }\n\n var leading_pipe = /^ {0,3}\\|(.+)\\n {0,3}\\|\\s*([\\-:]+[\\-| :]*)\\n((?:\\s*\\|.*(?:\\n|$))*)(?=\\n|$)/,\n // find at least an unescaped pipe in each line\n no_leading_pipe = /^ {0,3}(\\S(?:\\\\.|[^\\\\|])*\\|.*)\\n {0,3}([\\-:]+\\s*\\|[\\-| :]*)\\n((?:(?:\\\\.|[^\\\\|])*\\|.*(?:\\n|$))*)(?=\\n|$)/,\n i, m;\n if (m = block.match(leading_pipe)) {\n // remove leading pipes in contents\n // (header and horizontal rule already have the leading pipe left out)\n m[3] = m[3].replace(/^\\s*\\|/gm, '');\n } else if (! ( m = block.match(no_leading_pipe))) {\n return undefined;\n }\n\n var table = [ \"table\", [ \"thead\", [ \"tr\" ] ], [ \"tbody\" ] ];\n\n // remove trailing pipes, then split on pipes\n // (no escaped pipes are allowed in horizontal rule)\n m[2] = m[2].replace(/\\|\\s*$/, '').split('|');\n\n // process alignment\n var html_attrs = [ ];\n forEach (m[2], function (s) {\n if (s.match(/^\\s*-+:\\s*$/)) html_attrs.push({align: \"right\"});\n else if (s.match(/^\\s*:-+\\s*$/)) html_attrs.push({align: \"left\"});\n else if (s.match(/^\\s*:-+:\\s*$/)) html_attrs.push({align: \"center\"});\n else html_attrs.push({});\n });\n\n // now for the header, avoid escaped pipes\n m[1] = _split_on_unescaped(m[1].replace(/\\|\\s*$/, ''), '|');\n for (i = 0; i < m[1].length; i++) {\n table[1][1].push(['th', html_attrs[i] || {}].concat(\n this.processInline(m[1][i].trim())));\n }\n\n // now for body contents\n forEach (m[3].replace(/\\|\\s*$/mg, '').split('\\n'), function (row) {\n var html_row = ['tr'];\n row = _split_on_unescaped(row, '|');\n for (i = 0; i < row.length; i++) {\n html_row.push(['td', html_attrs[i] || {}].concat(this.processInline(row[i].trim())));\n }\n table[2].push(html_row);\n }, this);\n\n return [table];\n}\n\nMarkdown.dialects.Maruku.inline[ \"{:\" ] = function inline_meta( text, matches, out ) {\n if ( !out.length ) {\n return [ 2, \"{:\" ];\n }\n\n // get the preceeding element\n var before = out[ out.length - 1 ];\n\n if ( typeof before === \"string\" ) {\n return [ 2, \"{:\" ];\n }\n\n // match a meta hash\n var m = text.match( /^\\{:\\s*((?:\\\\\\}|[^\\}])*)\\s*\\}/ );\n\n // no match, false alarm\n if ( !m ) {\n return [ 2, \"{:\" ];\n }\n\n // attach the attributes to the preceeding element\n var meta = this.dialect.processMetaHash( m[ 1 ] ),\n attr = extract_attr( before );\n\n if ( !attr ) {\n attr = {};\n before.splice( 1, 0, attr );\n }\n\n for ( var k in meta ) {\n attr[ k ] = meta[ k ];\n }\n\n // cut out the string and replace it with nothing\n return [ m[ 0 ].length, \"\" ];\n};\n\nMarkdown.dialects.Maruku.inline.__escape__ = /^\\\\[\\\\`\\*_{}\\[\\]()#\\+.!\\-|:]/;\n\nMarkdown.buildBlockOrder ( Markdown.dialects.Maruku.block );\nMarkdown.buildInlinePatterns( Markdown.dialects.Maruku.inline );\n\nvar isArray = Array.isArray || function(obj) {\n return Object.prototype.toString.call(obj) == \"[object Array]\";\n};\n\nvar forEach;\n// Don't mess with Array.prototype. Its not friendly\nif ( Array.prototype.forEach ) {\n forEach = function( arr, cb, thisp ) {\n return arr.forEach( cb, thisp );\n };\n}\nelse {\n forEach = function(arr, cb, thisp) {\n for (var i = 0; i < arr.length; i++) {\n cb.call(thisp || arr, arr[i], i, arr);\n }\n }\n}\n\nvar isEmpty = function( obj ) {\n for ( var key in obj ) {\n if ( hasOwnProperty.call( obj, key ) ) {\n return false;\n }\n }\n\n return true;\n}\n\nfunction extract_attr( jsonml ) {\n return isArray(jsonml)\n && jsonml.length > 1\n && typeof jsonml[ 1 ] === \"object\"\n && !( isArray(jsonml[ 1 ]) )\n ? jsonml[ 1 ]\n : undefined;\n}\n\n\n\n/**\n * renderJsonML( jsonml[, options] ) -> String\n * - jsonml (Array): JsonML array to render to XML\n * - options (Object): options\n *\n * Converts the given JsonML into well-formed XML.\n *\n * The options currently understood are:\n *\n * - root (Boolean): wether or not the root node should be included in the\n * output, or just its children. The default `false` is to not include the\n * root itself.\n */\nexpose.renderJsonML = function( jsonml, options ) {\n options = options || {};\n // include the root element in the rendered output?\n options.root = options.root || false;\n\n var content = [];\n\n if ( options.root ) {\n content.push( render_tree( jsonml ) );\n }\n else {\n jsonml.shift(); // get rid of the tag\n if ( jsonml.length && typeof jsonml[ 0 ] === \"object\" && !( jsonml[ 0 ] instanceof Array ) ) {\n jsonml.shift(); // get rid of the attributes\n }\n\n while ( jsonml.length ) {\n content.push( render_tree( jsonml.shift() ) );\n }\n }\n\n return content.join( \"\\n\\n\" );\n};\n\nfunction escapeHTML( text ) {\n return text.replace( /&/g, \"&\" )\n .replace( /</g, \"<\" )\n .replace( />/g, \">\" )\n .replace( /\"/g, \""\" )\n .replace( /'/g, \"'\" );\n}\n\nfunction render_tree( jsonml ) {\n // basic case\n if ( typeof jsonml === \"string\" ) {\n return escapeHTML( jsonml );\n }\n\n var tag = jsonml.shift(),\n attributes = {},\n content = [];\n\n if ( jsonml.length && typeof jsonml[ 0 ] === \"object\" && !( jsonml[ 0 ] instanceof Array ) ) {\n attributes = jsonml.shift();\n }\n\n while ( jsonml.length ) {\n content.push( render_tree( jsonml.shift() ) );\n }\n\n var tag_attrs = \"\";\n for ( var a in attributes ) {\n tag_attrs += \" \" + a + '=\"' + escapeHTML( attributes[ a ] ) + '\"';\n }\n\n // be careful about adding whitespace here for inline elements\n if ( tag == \"img\" || tag == \"br\" || tag == \"hr\" ) {\n return \"<\"+ tag + tag_attrs + \"/>\";\n }\n else {\n return \"<\"+ tag + tag_attrs + \">\" + content.join( \"\" ) + \"</\" + tag + \">\";\n }\n}\n\nfunction convert_tree_to_html( tree, references, options ) {\n var i;\n options = options || {};\n\n // shallow clone\n var jsonml = tree.slice( 0 );\n\n if ( typeof options.preprocessTreeNode === \"function\" ) {\n jsonml = options.preprocessTreeNode(jsonml, references);\n }\n\n // Clone attributes if they exist\n var attrs = extract_attr( jsonml );\n if ( attrs ) {\n jsonml[ 1 ] = {};\n for ( i in attrs ) {\n jsonml[ 1 ][ i ] = attrs[ i ];\n }\n attrs = jsonml[ 1 ];\n }\n\n // basic case\n if ( typeof jsonml === \"string\" ) {\n return jsonml;\n }\n\n // convert this node\n switch ( jsonml[ 0 ] ) {\n case \"header\":\n jsonml[ 0 ] = \"h\" + jsonml[ 1 ].level;\n delete jsonml[ 1 ].level;\n break;\n case \"bulletlist\":\n jsonml[ 0 ] = \"ul\";\n break;\n case \"numberlist\":\n jsonml[ 0 ] = \"ol\";\n break;\n case \"listitem\":\n jsonml[ 0 ] = \"li\";\n break;\n case \"para\":\n jsonml[ 0 ] = \"p\";\n break;\n case \"markdown\":\n jsonml[ 0 ] = \"html\";\n if ( attrs ) delete attrs.references;\n break;\n case \"code_block\":\n jsonml[ 0 ] = \"pre\";\n i = attrs ? 2 : 1;\n var code = [ \"code\" ];\n code.push.apply( code, jsonml.splice( i, jsonml.length - i ) );\n jsonml[ i ] = code;\n break;\n case \"inlinecode\":\n jsonml[ 0 ] = \"code\";\n break;\n case \"img\":\n jsonml[ 1 ].src = jsonml[ 1 ].href;\n delete jsonml[ 1 ].href;\n break;\n case \"linebreak\":\n jsonml[ 0 ] = \"br\";\n break;\n case \"link\":\n jsonml[ 0 ] = \"a\";\n break;\n case \"link_ref\":\n jsonml[ 0 ] = \"a\";\n\n // grab this ref and clean up the attribute node\n var ref = references[ attrs.ref ];\n\n // if the reference exists, make the link\n if ( ref ) {\n delete attrs.ref;\n\n // add in the href and title, if present\n attrs.href = ref.href;\n if ( ref.title ) {\n attrs.title = ref.title;\n }\n\n // get rid of the unneeded original text\n delete attrs.original;\n }\n // the reference doesn't exist, so revert to plain text\n else {\n return attrs.original;\n }\n break;\n case \"img_ref\":\n jsonml[ 0 ] = \"img\";\n\n // grab this ref and clean up the attribute node\n var ref = references[ attrs.ref ];\n\n // if the reference exists, make the link\n if ( ref ) {\n delete attrs.ref;\n\n // add in the href and title, if present\n attrs.src = ref.href;\n if ( ref.title ) {\n attrs.title = ref.title;\n }\n\n // get rid of the unneeded original text\n delete attrs.original;\n }\n // the reference doesn't exist, so revert to plain text\n else {\n return attrs.original;\n }\n break;\n }\n\n // convert all the children\n i = 1;\n\n // deal with the attribute node, if it exists\n if ( attrs ) {\n // if there are keys, skip over it\n for ( var key in jsonml[ 1 ] ) {\n i = 2;\n break;\n }\n // if there aren't, remove it\n if ( i === 1 ) {\n jsonml.splice( i, 1 );\n }\n }\n\n for ( ; i < jsonml.length; ++i ) {\n jsonml[ i ] = convert_tree_to_html( jsonml[ i ], references, options );\n }\n\n return jsonml;\n}\n\n\n// merges adjacent text nodes into a single node\nfunction merge_text_nodes( jsonml ) {\n // skip the tag name and attribute hash\n var i = extract_attr( jsonml ) ? 2 : 1;\n\n while ( i < jsonml.length ) {\n // if it's a string check the next item too\n if ( typeof jsonml[ i ] === \"string\" ) {\n if ( i + 1 < jsonml.length && typeof jsonml[ i + 1 ] === \"string\" ) {\n // merge the second string into the first and remove it\n jsonml[ i ] += jsonml.splice( i + 1, 1 )[ 0 ];\n }\n else {\n ++i;\n }\n }\n // if it's not a string recurse\n else {\n merge_text_nodes( jsonml[ i ] );\n ++i;\n }\n }\n}\n\n} )( (function() {\n if ( typeof exports === \"undefined\" ) {\n window.markdown = {};\n return window.markdown;\n }\n else {\n return exports;\n }\n} )() );\n"
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},
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|
"$:/plugins/tiddlywiki/markdown/wrapper.js": {
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|
"text": "/*\\\ntitle: $:/plugins/tiddlywiki/markdown/wrapper.js\ntype: application/javascript\nmodule-type: parser\n\nWraps up the markdown-js parser for use in TiddlyWiki5\n\n\\*/\n(function(){\n\n/*jslint node: true, browser: true */\n/*global $tw: false */\n\"use strict\";\n\nvar markdown = require(\"$:/plugins/tiddlywiki/markdown/markdown.js\");\n\nvar CONFIG_DIALECT_TIDDLER = \"$:/config/markdown/dialect\",\n\tDEFAULT_DIALECT = \"Gruber\";\n\nfunction transformNodes(nodes) {\n\tvar results = [];\n\tfor(var index=0; index<nodes.length; index++) {\n\t\tresults.push(transformNode(nodes[index]));\n\t}\n\treturn results;\n}\n\nfunction transformNode(node) {\n\tif($tw.utils.isArray(node)) {\n\t\tvar p = 0,\n\t\t\twidget = {type: \"element\", tag: node[p++]};\n\t\tif(!$tw.utils.isArray(node[p]) && typeof(node[p]) === \"object\") {\n\t\t\twidget.attributes = {};\n\t\t\t$tw.utils.each(node[p++],function(value,name) {\n\t\t\t\twidget.attributes[name] = {type: \"string\", value: value};\n\t\t\t});\n\t\t}\n\t\twidget.children = transformNodes(node.slice(p++));\n\t\t// Massage images into the image widget\n\t\tif(widget.tag === \"img\") {\n\t\t\twidget.type = \"image\";\n\t\t\tif(widget.attributes.alt) {\n\t\t\t\twidget.attributes.tooltip = widget.attributes.alt;\n\t\t\t\tdelete widget.attributes.alt;\n\t\t\t}\n\t\t\tif(widget.attributes.src) {\n\t\t\t\twidget.attributes.source = widget.attributes.src;\n\t\t\t\tdelete widget.attributes.src;\n\t\t\t}\n\t\t}\n\t\treturn widget;\n\t} else {\n\t\treturn {type: \"text\", text: node};\n\t}\n}\n\nvar MarkdownParser = function(type,text,options) {\n\tvar dialect = options.wiki.getTiddlerText(CONFIG_DIALECT_TIDDLER,DEFAULT_DIALECT),\n\t\tmarkdownTree = markdown.toHTMLTree(text,dialect),\n\t\tnode = $tw.utils.isArray(markdownTree[1]) ? markdownTree.slice(1) : markdownTree.slice(2);\n\tthis.tree = transformNodes(node);\n};\n\n/*\n\n[ 'html',\n [ 'p', 'something' ],\n [ 'h1',\n 'heading and ',\n [ 'strong', 'other' ] ] ]\n\n*/\n\nexports[\"text/x-markdown\"] = MarkdownParser;\n\n})();\n\n",
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"title": "$:/plugins/tiddlywiki/markdown/wrapper.js",
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"type": "application/javascript",
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"module-type": "parser"
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}
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}
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} |