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1616 lines
46 KiB
JavaScript
1616 lines
46 KiB
JavaScript
3 years ago
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// Released under MIT license
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// Copyright (c) 2009-2010 Dominic Baggott
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// Copyright (c) 2009-2010 Ash Berlin
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// Copyright (c) 2011 Christoph Dorn <christoph@christophdorn.com> (http://www.christophdorn.com)
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(function( expose ) {
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/**
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* class Markdown
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*
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* Markdown processing in Javascript done right. We have very particular views
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* on what constitutes 'right' which include:
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*
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* - produces well-formed HTML (this means that em and strong nesting is
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* important)
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*
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* - has an intermediate representation to allow processing of parsed data (We
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* in fact have two, both as [JsonML]: a markdown tree and an HTML tree).
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*
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* - is easily extensible to add new dialects without having to rewrite the
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* entire parsing mechanics
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*
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* - has a good test suite
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*
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* This implementation fulfills all of these (except that the test suite could
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* do with expanding to automatically run all the fixtures from other Markdown
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* implementations.)
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*
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* ##### Intermediate Representation
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*
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* *TODO* Talk about this :) Its JsonML, but document the node names we use.
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*
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* [JsonML]: http://jsonml.org/ "JSON Markup Language"
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**/
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var Markdown = expose.Markdown = function Markdown(dialect) {
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switch (typeof dialect) {
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case "undefined":
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this.dialect = Markdown.dialects.Gruber;
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break;
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case "object":
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this.dialect = dialect;
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break;
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default:
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if (dialect in Markdown.dialects) {
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this.dialect = Markdown.dialects[dialect];
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}
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else {
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throw new Error("Unknown Markdown dialect '" + String(dialect) + "'");
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}
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break;
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}
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this.em_state = [];
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this.strong_state = [];
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this.debug_indent = "";
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};
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/**
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* parse( markdown, [dialect] ) -> JsonML
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* - markdown (String): markdown string to parse
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* - dialect (String | Dialect): the dialect to use, defaults to gruber
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*
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* Parse `markdown` and return a markdown document as a Markdown.JsonML tree.
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**/
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expose.parse = function( source, dialect ) {
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// dialect will default if undefined
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var md = new Markdown( dialect );
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return md.toTree( source );
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};
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/**
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* toHTML( markdown, [dialect] ) -> String
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* toHTML( md_tree ) -> String
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* - markdown (String): markdown string to parse
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* - md_tree (Markdown.JsonML): parsed markdown tree
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*
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* Take markdown (either as a string or as a JsonML tree) and run it through
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* [[toHTMLTree]] then turn it into a well-formated HTML fragment.
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**/
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expose.toHTML = function toHTML( source , dialect , options ) {
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var input = expose.toHTMLTree( source , dialect , options );
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return expose.renderJsonML( input );
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};
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/**
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* toHTMLTree( markdown, [dialect] ) -> JsonML
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* toHTMLTree( md_tree ) -> JsonML
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* - markdown (String): markdown string to parse
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* - dialect (String | Dialect): the dialect to use, defaults to gruber
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* - md_tree (Markdown.JsonML): parsed markdown tree
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*
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* Turn markdown into HTML, represented as a JsonML tree. If a string is given
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* to this function, it is first parsed into a markdown tree by calling
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* [[parse]].
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**/
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expose.toHTMLTree = function toHTMLTree( input, dialect , options ) {
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// convert string input to an MD tree
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if ( typeof input ==="string" ) input = this.parse( input, dialect );
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// Now convert the MD tree to an HTML tree
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// remove references from the tree
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var attrs = extract_attr( input ),
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refs = {};
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if ( attrs && attrs.references ) {
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refs = attrs.references;
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}
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var html = convert_tree_to_html( input, refs , options );
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merge_text_nodes( html );
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return html;
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};
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// For Spidermonkey based engines
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function mk_block_toSource() {
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return "Markdown.mk_block( " +
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uneval(this.toString()) +
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", " +
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uneval(this.trailing) +
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", " +
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uneval(this.lineNumber) +
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" )";
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}
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// node
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function mk_block_inspect() {
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var util = require('util');
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return "Markdown.mk_block( " +
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util.inspect(this.toString()) +
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", " +
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util.inspect(this.trailing) +
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", " +
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util.inspect(this.lineNumber) +
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" )";
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}
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var mk_block = Markdown.mk_block = function(block, trail, line) {
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// Be helpful for default case in tests.
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if ( arguments.length == 1 ) trail = "\n\n";
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var s = new String(block);
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s.trailing = trail;
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// To make it clear its not just a string
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s.inspect = mk_block_inspect;
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s.toSource = mk_block_toSource;
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if (line != undefined)
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s.lineNumber = line;
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return s;
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};
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function count_lines( str ) {
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var n = 0, i = -1;
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while ( ( i = str.indexOf('\n', i+1) ) !== -1) n++;
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return n;
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}
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// Internal - split source into rough blocks
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Markdown.prototype.split_blocks = function splitBlocks( input, startLine ) {
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// [\s\S] matches _anything_ (newline or space)
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var re = /([\s\S]+?)($|\n(?:\s*\n|$)+)/g,
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blocks = [],
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m;
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var line_no = 1;
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if ( ( m = /^(\s*\n)/.exec(input) ) != null ) {
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// skip (but count) leading blank lines
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line_no += count_lines( m[0] );
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re.lastIndex = m[0].length;
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}
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while ( ( m = re.exec(input) ) !== null ) {
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blocks.push( mk_block( m[1], m[2], line_no ) );
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line_no += count_lines( m[0] );
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}
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return blocks;
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};
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/**
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* Markdown#processBlock( block, next ) -> undefined | [ JsonML, ... ]
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* - block (String): the block to process
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* - next (Array): the following blocks
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*
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* Process `block` and return an array of JsonML nodes representing `block`.
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*
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* It does this by asking each block level function in the dialect to process
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* the block until one can. Succesful handling is indicated by returning an
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* array (with zero or more JsonML nodes), failure by a false value.
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*
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* Blocks handlers are responsible for calling [[Markdown#processInline]]
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* themselves as appropriate.
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*
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* If the blocks were split incorrectly or adjacent blocks need collapsing you
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* can adjust `next` in place using shift/splice etc.
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*
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* If any of this default behaviour is not right for the dialect, you can
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* define a `__call__` method on the dialect that will get invoked to handle
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* the block processing.
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*/
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Markdown.prototype.processBlock = function processBlock( block, next ) {
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var cbs = this.dialect.block,
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ord = cbs.__order__;
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if ( "__call__" in cbs ) {
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return cbs.__call__.call(this, block, next);
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}
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for ( var i = 0; i < ord.length; i++ ) {
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//D:this.debug( "Testing", ord[i] );
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var res = cbs[ ord[i] ].call( this, block, next );
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if ( res ) {
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//D:this.debug(" matched");
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if ( !isArray(res) || ( res.length > 0 && !( isArray(res[0]) ) ) )
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this.debug(ord[i], "didn't return a proper array");
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//D:this.debug( "" );
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return res;
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}
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}
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// Uhoh! no match! Should we throw an error?
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return [];
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};
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Markdown.prototype.processInline = function processInline( block ) {
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return this.dialect.inline.__call__.call( this, String( block ) );
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};
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/**
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* Markdown#toTree( source ) -> JsonML
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* - source (String): markdown source to parse
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*
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* Parse `source` into a JsonML tree representing the markdown document.
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**/
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// custom_tree means set this.tree to `custom_tree` and restore old value on return
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Markdown.prototype.toTree = function toTree( source, custom_root ) {
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var blocks = source instanceof Array ? source : this.split_blocks( source );
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// Make tree a member variable so its easier to mess with in extensions
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var old_tree = this.tree;
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try {
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this.tree = custom_root || this.tree || [ "markdown" ];
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blocks:
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while ( blocks.length ) {
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var b = this.processBlock( blocks.shift(), blocks );
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// Reference blocks and the like won't return any content
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if ( !b.length ) continue blocks;
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this.tree.push.apply( this.tree, b );
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}
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return this.tree;
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}
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finally {
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if ( custom_root ) {
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this.tree = old_tree;
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}
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}
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};
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// Noop by default
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Markdown.prototype.debug = function () {
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var args = Array.prototype.slice.call( arguments);
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args.unshift(this.debug_indent);
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if (typeof print !== "undefined")
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print.apply( print, args );
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if (typeof console !== "undefined" && typeof console.log !== "undefined")
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console.log.apply( null, args );
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}
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Markdown.prototype.loop_re_over_block = function( re, block, cb ) {
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// Dont use /g regexps with this
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var m,
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b = block.valueOf();
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while ( b.length && (m = re.exec(b) ) != null) {
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b = b.substr( m[0].length );
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cb.call(this, m);
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}
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return b;
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};
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/**
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* Markdown.dialects
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*
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* Namespace of built-in dialects.
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**/
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Markdown.dialects = {};
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/**
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* Markdown.dialects.Gruber
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*
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* The default dialect that follows the rules set out by John Gruber's
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* markdown.pl as closely as possible. Well actually we follow the behaviour of
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* that script which in some places is not exactly what the syntax web page
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* says.
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**/
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Markdown.dialects.Gruber = {
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block: {
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atxHeader: function atxHeader( block, next ) {
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var m = block.match( /^(#{1,6})\s*(.*?)\s*#*\s*(?:\n|$)/ );
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if ( !m ) return undefined;
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var header = [ "header", { level: m[ 1 ].length } ];
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Array.prototype.push.apply(header, this.processInline(m[ 2 ]));
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if ( m[0].length < block.length )
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next.unshift( mk_block( block.substr( m[0].length ), block.trailing, block.lineNumber + 2 ) );
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return [ header ];
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},
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setextHeader: function setextHeader( block, next ) {
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var m = block.match( /^(.*)\n([-=])\2\2+(?:\n|$)/ );
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if ( !m ) return undefined;
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var level = ( m[ 2 ] === "=" ) ? 1 : 2;
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var header = [ "header", { level : level }, m[ 1 ] ];
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if ( m[0].length < block.length )
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next.unshift( mk_block( block.substr( m[0].length ), block.trailing, block.lineNumber + 2 ) );
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return [ header ];
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},
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code: function code( block, next ) {
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// | Foo
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// |bar
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// should be a code block followed by a paragraph. Fun
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//
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// There might also be adjacent code block to merge.
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var ret = [],
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re = /^(?: {0,3}\t| {4})(.*)\n?/,
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lines;
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// 4 spaces + content
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if ( !block.match( re ) ) return undefined;
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block_search:
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do {
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// Now pull out the rest of the lines
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var b = this.loop_re_over_block(
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re, block.valueOf(), function( m ) { ret.push( m[1] ); } );
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if (b.length) {
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// Case alluded to in first comment. push it back on as a new block
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next.unshift( mk_block(b, block.trailing) );
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break block_search;
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}
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else if (next.length) {
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// Check the next block - it might be code too
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if ( !next[0].match( re ) ) break block_search;
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// Pull how how many blanks lines follow - minus two to account for .join
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ret.push ( block.trailing.replace(/[^\n]/g, '').substring(2) );
|
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block = next.shift();
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}
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else {
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break block_search;
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}
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} while (true);
|
||
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return [ [ "code_block", ret.join("\n") ] ];
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||
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},
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horizRule: function horizRule( block, next ) {
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||
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// this needs to find any hr in the block to handle abutting blocks
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||
|
|
var m = block.match( /^(?:([\s\S]*?)\n)?[ \t]*([-_*])(?:[ \t]*\2){2,}[ \t]*(?:\n([\s\S]*))?$/ );
|
||
|
|
|
||
|
|
if ( !m ) {
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
var jsonml = [ [ "hr" ] ];
|
||
|
|
|
||
|
|
// if there's a leading abutting block, process it
|
||
|
|
if ( m[ 1 ] ) {
|
||
|
|
jsonml.unshift.apply( jsonml, this.processBlock( m[ 1 ], [] ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
// if there's a trailing abutting block, stick it into next
|
||
|
|
if ( m[ 3 ] ) {
|
||
|
|
next.unshift( mk_block( m[ 3 ] ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
return jsonml;
|
||
|
|
},
|
||
|
|
|
||
|
|
// There are two types of lists. Tight and loose. Tight lists have no whitespace
|
||
|
|
// between the items (and result in text just in the <li>) and loose lists,
|
||
|
|
// which have an empty line between list items, resulting in (one or more)
|
||
|
|
// paragraphs inside the <li>.
|
||
|
|
//
|
||
|
|
// There are all sorts weird edge cases about the original markdown.pl's
|
||
|
|
// handling of lists:
|
||
|
|
//
|
||
|
|
// * Nested lists are supposed to be indented by four chars per level. But
|
||
|
|
// if they aren't, you can get a nested list by indenting by less than
|
||
|
|
// four so long as the indent doesn't match an indent of an existing list
|
||
|
|
// item in the 'nest stack'.
|
||
|
|
//
|
||
|
|
// * The type of the list (bullet or number) is controlled just by the
|
||
|
|
// first item at the indent. Subsequent changes are ignored unless they
|
||
|
|
// are for nested lists
|
||
|
|
//
|
||
|
|
lists: (function( ) {
|
||
|
|
// Use a closure to hide a few variables.
|
||
|
|
var any_list = "[*+-]|\\d+\\.",
|
||
|
|
bullet_list = /[*+-]/,
|
||
|
|
number_list = /\d+\./,
|
||
|
|
// Capture leading indent as it matters for determining nested lists.
|
||
|
|
is_list_re = new RegExp( "^( {0,3})(" + any_list + ")[ \t]+" ),
|
||
|
|
indent_re = "(?: {0,3}\\t| {4})";
|
||
|
|
|
||
|
|
// TODO: Cache this regexp for certain depths.
|
||
|
|
// Create a regexp suitable for matching an li for a given stack depth
|
||
|
|
function regex_for_depth( depth ) {
|
||
|
|
|
||
|
|
return new RegExp(
|
||
|
|
// m[1] = indent, m[2] = list_type
|
||
|
|
"(?:^(" + indent_re + "{0," + depth + "} {0,3})(" + any_list + ")\\s+)|" +
|
||
|
|
// m[3] = cont
|
||
|
|
"(^" + indent_re + "{0," + (depth-1) + "}[ ]{0,4})"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
function expand_tab( input ) {
|
||
|
|
return input.replace( / {0,3}\t/g, " " );
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add inline content `inline` to `li`. inline comes from processInline
|
||
|
|
// so is an array of content
|
||
|
|
function add(li, loose, inline, nl) {
|
||
|
|
if (loose) {
|
||
|
|
li.push( [ "para" ].concat(inline) );
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// Hmmm, should this be any block level element or just paras?
|
||
|
|
var add_to = li[li.length -1] instanceof Array && li[li.length - 1][0] == "para"
|
||
|
|
? li[li.length -1]
|
||
|
|
: li;
|
||
|
|
|
||
|
|
// If there is already some content in this list, add the new line in
|
||
|
|
if (nl && li.length > 1) inline.unshift(nl);
|
||
|
|
|
||
|
|
for (var i=0; i < inline.length; i++) {
|
||
|
|
var what = inline[i],
|
||
|
|
is_str = typeof what == "string";
|
||
|
|
if (is_str && add_to.length > 1 && typeof add_to[add_to.length-1] == "string" ) {
|
||
|
|
add_to[ add_to.length-1 ] += what;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
add_to.push( what );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// contained means have an indent greater than the current one. On
|
||
|
|
// *every* line in the block
|
||
|
|
function get_contained_blocks( depth, blocks ) {
|
||
|
|
|
||
|
|
var re = new RegExp( "^(" + indent_re + "{" + depth + "}.*?\\n?)*$" ),
|
||
|
|
replace = new RegExp("^" + indent_re + "{" + depth + "}", "gm"),
|
||
|
|
ret = [];
|
||
|
|
|
||
|
|
while ( blocks.length > 0 ) {
|
||
|
|
if ( re.exec( blocks[0] ) ) {
|
||
|
|
var b = blocks.shift(),
|
||
|
|
// Now remove that indent
|
||
|
|
x = b.replace( replace, "");
|
||
|
|
|
||
|
|
ret.push( mk_block( x, b.trailing, b.lineNumber ) );
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
// passed to stack.forEach to turn list items up the stack into paras
|
||
|
|
function paragraphify(s, i, stack) {
|
||
|
|
var list = s.list;
|
||
|
|
var last_li = list[list.length-1];
|
||
|
|
|
||
|
|
if (last_li[1] instanceof Array && last_li[1][0] == "para") {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (i+1 == stack.length) {
|
||
|
|
// Last stack frame
|
||
|
|
// Keep the same array, but replace the contents
|
||
|
|
last_li.push( ["para"].concat( last_li.splice(1) ) );
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
var sublist = last_li.pop();
|
||
|
|
last_li.push( ["para"].concat( last_li.splice(1) ), sublist );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// The matcher function
|
||
|
|
return function( block, next ) {
|
||
|
|
var m = block.match( is_list_re );
|
||
|
|
if ( !m ) return undefined;
|
||
|
|
|
||
|
|
function make_list( m ) {
|
||
|
|
var list = bullet_list.exec( m[2] )
|
||
|
|
? ["bulletlist"]
|
||
|
|
: ["numberlist"];
|
||
|
|
|
||
|
|
stack.push( { list: list, indent: m[1] } );
|
||
|
|
return list;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
var stack = [], // Stack of lists for nesting.
|
||
|
|
list = make_list( m ),
|
||
|
|
last_li,
|
||
|
|
loose = false,
|
||
|
|
ret = [ stack[0].list ],
|
||
|
|
i;
|
||
|
|
|
||
|
|
// Loop to search over block looking for inner block elements and loose lists
|
||
|
|
loose_search:
|
||
|
|
while( true ) {
|
||
|
|
// Split into lines preserving new lines at end of line
|
||
|
|
var lines = block.split( /(?=\n)/ );
|
||
|
|
|
||
|
|
// We have to grab all lines for a li and call processInline on them
|
||
|
|
// once as there are some inline things that can span lines.
|
||
|
|
var li_accumulate = "";
|
||
|
|
|
||
|
|
// Loop over the lines in this block looking for tight lists.
|
||
|
|
tight_search:
|
||
|
|
for (var line_no=0; line_no < lines.length; line_no++) {
|
||
|
|
var nl = "",
|
||
|
|
l = lines[line_no].replace(/^\n/, function(n) { nl = n; return ""; });
|
||
|
|
|
||
|
|
// TODO: really should cache this
|
||
|
|
var line_re = regex_for_depth( stack.length );
|
||
|
|
|
||
|
|
m = l.match( line_re );
|
||
|
|
//print( "line:", uneval(l), "\nline match:", uneval(m) );
|
||
|
|
|
||
|
|
// We have a list item
|
||
|
|
if ( m[1] !== undefined ) {
|
||
|
|
// Process the previous list item, if any
|
||
|
|
if ( li_accumulate.length ) {
|
||
|
|
add( last_li, loose, this.processInline( li_accumulate ), nl );
|
||
|
|
// Loose mode will have been dealt with. Reset it
|
||
|
|
loose = false;
|
||
|
|
li_accumulate = "";
|
||
|
|
}
|
||
|
|
|
||
|
|
m[1] = expand_tab( m[1] );
|
||
|
|
var wanted_depth = Math.floor(m[1].length/4)+1;
|
||
|
|
//print( "want:", wanted_depth, "stack:", stack.length);
|
||
|
|
if ( wanted_depth > stack.length ) {
|
||
|
|
// Deep enough for a nested list outright
|
||
|
|
//print ( "new nested list" );
|
||
|
|
list = make_list( m );
|
||
|
|
last_li.push( list );
|
||
|
|
last_li = list[1] = [ "listitem" ];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// We aren't deep enough to be strictly a new level. This is
|
||
|
|
// where Md.pl goes nuts. If the indent matches a level in the
|
||
|
|
// stack, put it there, else put it one deeper then the
|
||
|
|
// wanted_depth deserves.
|
||
|
|
var found = false;
|
||
|
|
for (i = 0; i < stack.length; i++) {
|
||
|
|
if ( stack[ i ].indent != m[1] ) continue;
|
||
|
|
list = stack[ i ].list;
|
||
|
|
stack.splice( i+1 );
|
||
|
|
found = true;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!found) {
|
||
|
|
//print("not found. l:", uneval(l));
|
||
|
|
wanted_depth++;
|
||
|
|
if (wanted_depth <= stack.length) {
|
||
|
|
stack.splice(wanted_depth);
|
||
|
|
//print("Desired depth now", wanted_depth, "stack:", stack.length);
|
||
|
|
list = stack[wanted_depth-1].list;
|
||
|
|
//print("list:", uneval(list) );
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
//print ("made new stack for messy indent");
|
||
|
|
list = make_list(m);
|
||
|
|
last_li.push(list);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//print( uneval(list), "last", list === stack[stack.length-1].list );
|
||
|
|
last_li = [ "listitem" ];
|
||
|
|
list.push(last_li);
|
||
|
|
} // end depth of shenegains
|
||
|
|
nl = "";
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add content
|
||
|
|
if (l.length > m[0].length) {
|
||
|
|
li_accumulate += nl + l.substr( m[0].length );
|
||
|
|
}
|
||
|
|
} // tight_search
|
||
|
|
|
||
|
|
if ( li_accumulate.length ) {
|
||
|
|
add( last_li, loose, this.processInline( li_accumulate ), nl );
|
||
|
|
// Loose mode will have been dealt with. Reset it
|
||
|
|
loose = false;
|
||
|
|
li_accumulate = "";
|
||
|
|
}
|
||
|
|
|
||
|
|
// Look at the next block - we might have a loose list. Or an extra
|
||
|
|
// paragraph for the current li
|
||
|
|
var contained = get_contained_blocks( stack.length, next );
|
||
|
|
|
||
|
|
// Deal with code blocks or properly nested lists
|
||
|
|
if (contained.length > 0) {
|
||
|
|
// Make sure all listitems up the stack are paragraphs
|
||
|
|
forEach( stack, paragraphify, this);
|
||
|
|
|
||
|
|
last_li.push.apply( last_li, this.toTree( contained, [] ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
var next_block = next[0] && next[0].valueOf() || "";
|
||
|
|
|
||
|
|
if ( next_block.match(is_list_re) || next_block.match( /^ / ) ) {
|
||
|
|
block = next.shift();
|
||
|
|
|
||
|
|
// Check for an HR following a list: features/lists/hr_abutting
|
||
|
|
var hr = this.dialect.block.horizRule( block, next );
|
||
|
|
|
||
|
|
if (hr) {
|
||
|
|
ret.push.apply(ret, hr);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make sure all listitems up the stack are paragraphs
|
||
|
|
forEach( stack, paragraphify, this);
|
||
|
|
|
||
|
|
loose = true;
|
||
|
|
continue loose_search;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
} // loose_search
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
})(),
|
||
|
|
|
||
|
|
blockquote: function blockquote( block, next ) {
|
||
|
|
if ( !block.match( /^>/m ) )
|
||
|
|
return undefined;
|
||
|
|
|
||
|
|
var jsonml = [];
|
||
|
|
|
||
|
|
// separate out the leading abutting block, if any
|
||
|
|
if ( block[ 0 ] != ">" ) {
|
||
|
|
var lines = block.split( /\n/ ),
|
||
|
|
prev = [];
|
||
|
|
|
||
|
|
// keep shifting lines until you find a crotchet
|
||
|
|
while ( lines.length && lines[ 0 ][ 0 ] != ">" ) {
|
||
|
|
prev.push( lines.shift() );
|
||
|
|
}
|
||
|
|
|
||
|
|
// reassemble!
|
||
|
|
block = lines.join( "\n" );
|
||
|
|
jsonml.push.apply( jsonml, this.processBlock( prev.join( "\n" ), [] ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
// if the next block is also a blockquote merge it in
|
||
|
|
while ( next.length && next[ 0 ][ 0 ] == ">" ) {
|
||
|
|
var b = next.shift();
|
||
|
|
block = new String(block + block.trailing + b);
|
||
|
|
block.trailing = b.trailing;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Strip off the leading "> " and re-process as a block.
|
||
|
|
var input = block.replace( /^> ?/gm, '' ),
|
||
|
|
old_tree = this.tree;
|
||
|
|
jsonml.push( this.toTree( input, [ "blockquote" ] ) );
|
||
|
|
|
||
|
|
return jsonml;
|
||
|
|
},
|
||
|
|
|
||
|
|
referenceDefn: function referenceDefn( block, next) {
|
||
|
|
var re = /^\s*\[(.*?)\]:\s*(\S+)(?:\s+(?:(['"])(.*?)\3|\((.*?)\)))?\n?/;
|
||
|
|
// interesting matches are [ , ref_id, url, , title, title ]
|
||
|
|
|
||
|
|
if ( !block.match(re) )
|
||
|
|
return undefined;
|
||
|
|
|
||
|
|
// make an attribute node if it doesn't exist
|
||
|
|
if ( !extract_attr( this.tree ) ) {
|
||
|
|
this.tree.splice( 1, 0, {} );
|
||
|
|
}
|
||
|
|
|
||
|
|
var attrs = extract_attr( this.tree );
|
||
|
|
|
||
|
|
// make a references hash if it doesn't exist
|
||
|
|
if ( attrs.references === undefined ) {
|
||
|
|
attrs.references = {};
|
||
|
|
}
|
||
|
|
|
||
|
|
var b = this.loop_re_over_block(re, block, function( m ) {
|
||
|
|
|
||
|
|
if ( m[2] && m[2][0] == '<' && m[2][m[2].length-1] == '>' )
|
||
|
|
m[2] = m[2].substring( 1, m[2].length - 1 );
|
||
|
|
|
||
|
|
var ref = attrs.references[ m[1].toLowerCase() ] = {
|
||
|
|
href: m[2]
|
||
|
|
};
|
||
|
|
|
||
|
|
if (m[4] !== undefined)
|
||
|
|
ref.title = m[4];
|
||
|
|
else if (m[5] !== undefined)
|
||
|
|
ref.title = m[5];
|
||
|
|
|
||
|
|
} );
|
||
|
|
|
||
|
|
if (b.length)
|
||
|
|
next.unshift( mk_block( b, block.trailing ) );
|
||
|
|
|
||
|
|
return [];
|
||
|
|
},
|
||
|
|
|
||
|
|
para: function para( block, next ) {
|
||
|
|
// everything's a para!
|
||
|
|
return [ ["para"].concat( this.processInline( block ) ) ];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
Markdown.dialects.Gruber.inline = {
|
||
|
|
|
||
|
|
__oneElement__: function oneElement( text, patterns_or_re, previous_nodes ) {
|
||
|
|
var m,
|
||
|
|
res,
|
||
|
|
lastIndex = 0;
|
||
|
|
|
||
|
|
patterns_or_re = patterns_or_re || this.dialect.inline.__patterns__;
|
||
|
|
var re = new RegExp( "([\\s\\S]*?)(" + (patterns_or_re.source || patterns_or_re) + ")" );
|
||
|
|
|
||
|
|
m = re.exec( text );
|
||
|
|
if (!m) {
|
||
|
|
// Just boring text
|
||
|
|
return [ text.length, text ];
|
||
|
|
}
|
||
|
|
else if ( m[1] ) {
|
||
|
|
// Some un-interesting text matched. Return that first
|
||
|
|
return [ m[1].length, m[1] ];
|
||
|
|
}
|
||
|
|
|
||
|
|
var res;
|
||
|
|
if ( m[2] in this.dialect.inline ) {
|
||
|
|
res = this.dialect.inline[ m[2] ].call(
|
||
|
|
this,
|
||
|
|
text.substr( m.index ), m, previous_nodes || [] );
|
||
|
|
}
|
||
|
|
// Default for now to make dev easier. just slurp special and output it.
|
||
|
|
res = res || [ m[2].length, m[2] ];
|
||
|
|
return res;
|
||
|
|
},
|
||
|
|
|
||
|
|
__call__: function inline( text, patterns ) {
|
||
|
|
|
||
|
|
var out = [],
|
||
|
|
res;
|
||
|
|
|
||
|
|
function add(x) {
|
||
|
|
//D:self.debug(" adding output", uneval(x));
|
||
|
|
if (typeof x == "string" && typeof out[out.length-1] == "string")
|
||
|
|
out[ out.length-1 ] += x;
|
||
|
|
else
|
||
|
|
out.push(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
while ( text.length > 0 ) {
|
||
|
|
res = this.dialect.inline.__oneElement__.call(this, text, patterns, out );
|
||
|
|
text = text.substr( res.shift() );
|
||
|
|
forEach(res, add )
|
||
|
|
}
|
||
|
|
|
||
|
|
return out;
|
||
|
|
},
|
||
|
|
|
||
|
|
// These characters are intersting elsewhere, so have rules for them so that
|
||
|
|
// chunks of plain text blocks don't include them
|
||
|
|
"]": function () {},
|
||
|
|
"}": function () {},
|
||
|
|
|
||
|
|
"\\": function escaped( text ) {
|
||
|
|
// [ length of input processed, node/children to add... ]
|
||
|
|
// Only esacape: \ ` * _ { } [ ] ( ) # * + - . !
|
||
|
|
if ( text.match( /^\\[\\`\*_{}\[\]()#\+.!\-]/ ) )
|
||
|
|
return [ 2, text[1] ];
|
||
|
|
else
|
||
|
|
// Not an esacpe
|
||
|
|
return [ 1, "\\" ];
|
||
|
|
},
|
||
|
|
|
||
|
|
"
|
||
|
|
// 1 2 3 4 <--- captures
|
||
|
|
var m = text.match( /^!\[(.*?)\][ \t]*\([ \t]*(\S*)(?:[ \t]+(["'])(.*?)\3)?[ \t]*\)/ );
|
||
|
|
|
||
|
|
if ( m ) {
|
||
|
|
if ( m[2] && m[2][0] == '<' && m[2][m[2].length-1] == '>' )
|
||
|
|
m[2] = m[2].substring( 1, m[2].length - 1 );
|
||
|
|
|
||
|
|
m[2] = this.dialect.inline.__call__.call( this, m[2], /\\/ )[0];
|
||
|
|
|
||
|
|
var attrs = { alt: m[1], href: m[2] || "" };
|
||
|
|
if ( m[4] !== undefined)
|
||
|
|
attrs.title = m[4];
|
||
|
|
|
||
|
|
return [ m[0].length, [ "img", attrs ] ];
|
||
|
|
}
|
||
|
|
|
||
|
|
// ![Alt text][id]
|
||
|
|
m = text.match( /^!\[(.*?)\][ \t]*\[(.*?)\]/ );
|
||
|
|
|
||
|
|
if ( m ) {
|
||
|
|
// We can't check if the reference is known here as it likely wont be
|
||
|
|
// found till after. Check it in md tree->hmtl tree conversion
|
||
|
|
return [ m[0].length, [ "img_ref", { alt: m[1], ref: m[2].toLowerCase(), original: m[0] } ] ];
|
||
|
|
}
|
||
|
|
|
||
|
|
// Just consume the '!['
|
||
|
|
return [ 2, "![" ];
|
||
|
|
},
|
||
|
|
|
||
|
|
"[": function link( text ) {
|
||
|
|
|
||
|
|
var orig = String(text);
|
||
|
|
// Inline content is possible inside `link text`
|
||
|
|
var res = Markdown.DialectHelpers.inline_until_char.call( this, text.substr(1), ']' );
|
||
|
|
|
||
|
|
// No closing ']' found. Just consume the [
|
||
|
|
if ( !res ) return [ 1, '[' ];
|
||
|
|
|
||
|
|
var consumed = 1 + res[ 0 ],
|
||
|
|
children = res[ 1 ],
|
||
|
|
link,
|
||
|
|
attrs;
|
||
|
|
|
||
|
|
// At this point the first [...] has been parsed. See what follows to find
|
||
|
|
// out which kind of link we are (reference or direct url)
|
||
|
|
text = text.substr( consumed );
|
||
|
|
|
||
|
|
// [link text](/path/to/img.jpg "Optional title")
|
||
|
|
// 1 2 3 <--- captures
|
||
|
|
// This will capture up to the last paren in the block. We then pull
|
||
|
|
// back based on if there a matching ones in the url
|
||
|
|
// ([here](/url/(test))
|
||
|
|
// The parens have to be balanced
|
||
|
|
var m = text.match( /^\s*\([ \t]*(\S+)(?:[ \t]+(["'])(.*?)\2)?[ \t]*\)/ );
|
||
|
|
if ( m ) {
|
||
|
|
var url = m[1];
|
||
|
|
consumed += m[0].length;
|
||
|
|
|
||
|
|
if ( url && url[0] == '<' && url[url.length-1] == '>' )
|
||
|
|
url = url.substring( 1, url.length - 1 );
|
||
|
|
|
||
|
|
// If there is a title we don't have to worry about parens in the url
|
||
|
|
if ( !m[3] ) {
|
||
|
|
var open_parens = 1; // One open that isn't in the capture
|
||
|
|
for (var len = 0; len < url.length; len++) {
|
||
|
|
switch ( url[len] ) {
|
||
|
|
case '(':
|
||
|
|
open_parens++;
|
||
|
|
break;
|
||
|
|
case ')':
|
||
|
|
if ( --open_parens == 0) {
|
||
|
|
consumed -= url.length - len;
|
||
|
|
url = url.substring(0, len);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Process escapes only
|
||
|
|
url = this.dialect.inline.__call__.call( this, url, /\\/ )[0];
|
||
|
|
|
||
|
|
attrs = { href: url || "" };
|
||
|
|
if ( m[3] !== undefined)
|
||
|
|
attrs.title = m[3];
|
||
|
|
|
||
|
|
link = [ "link", attrs ].concat( children );
|
||
|
|
return [ consumed, link ];
|
||
|
|
}
|
||
|
|
|
||
|
|
// [Alt text][id]
|
||
|
|
// [Alt text] [id]
|
||
|
|
m = text.match( /^\s*\[(.*?)\]/ );
|
||
|
|
|
||
|
|
if ( m ) {
|
||
|
|
|
||
|
|
consumed += m[ 0 ].length;
|
||
|
|
|
||
|
|
// [links][] uses links as its reference
|
||
|
|
attrs = { ref: ( m[ 1 ] || String(children) ).toLowerCase(), original: orig.substr( 0, consumed ) };
|
||
|
|
|
||
|
|
link = [ "link_ref", attrs ].concat( children );
|
||
|
|
|
||
|
|
// We can't check if the reference is known here as it likely wont be
|
||
|
|
// found till after. Check it in md tree->hmtl tree conversion.
|
||
|
|
// Store the original so that conversion can revert if the ref isn't found.
|
||
|
|
return [ consumed, link ];
|
||
|
|
}
|
||
|
|
|
||
|
|
// [id]
|
||
|
|
// Only if id is plain (no formatting.)
|
||
|
|
if ( children.length == 1 && typeof children[0] == "string" ) {
|
||
|
|
|
||
|
|
attrs = { ref: children[0].toLowerCase(), original: orig.substr( 0, consumed ) };
|
||
|
|
link = [ "link_ref", attrs, children[0] ];
|
||
|
|
return [ consumed, link ];
|
||
|
|
}
|
||
|
|
|
||
|
|
// Just consume the '['
|
||
|
|
return [ 1, "[" ];
|
||
|
|
},
|
||
|
|
|
||
|
|
|
||
|
|
"<": function autoLink( text ) {
|
||
|
|
var m;
|
||
|
|
|
||
|
|
if ( ( m = text.match( /^<(?:((https?|ftp|mailto):[^>]+)|(.*?@.*?\.[a-zA-Z]+))>/ ) ) != null ) {
|
||
|
|
if ( m[3] ) {
|
||
|
|
return [ m[0].length, [ "link", { href: "mailto:" + m[3] }, m[3] ] ];
|
||
|
|
|
||
|
|
}
|
||
|
|
else if ( m[2] == "mailto" ) {
|
||
|
|
return [ m[0].length, [ "link", { href: m[1] }, m[1].substr("mailto:".length ) ] ];
|
||
|
|
}
|
||
|
|
else
|
||
|
|
return [ m[0].length, [ "link", { href: m[1] }, m[1] ] ];
|
||
|
|
}
|
||
|
|
|
||
|
|
return [ 1, "<" ];
|
||
|
|
},
|
||
|
|
|
||
|
|
"`": function inlineCode( text ) {
|
||
|
|
// Inline code block. as many backticks as you like to start it
|
||
|
|
// Always skip over the opening ticks.
|
||
|
|
var m = text.match( /(`+)(([\s\S]*?)\1)/ );
|
||
|
|
|
||
|
|
if ( m && m[2] )
|
||
|
|
return [ m[1].length + m[2].length, [ "inlinecode", m[3] ] ];
|
||
|
|
else {
|
||
|
|
// TODO: No matching end code found - warn!
|
||
|
|
return [ 1, "`" ];
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
" \n": function lineBreak( text ) {
|
||
|
|
return [ 3, [ "linebreak" ] ];
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
// Meta Helper/generator method for em and strong handling
|
||
|
|
function strong_em( tag, md ) {
|
||
|
|
|
||
|
|
var state_slot = tag + "_state",
|
||
|
|
other_slot = tag == "strong" ? "em_state" : "strong_state";
|
||
|
|
|
||
|
|
function CloseTag(len) {
|
||
|
|
this.len_after = len;
|
||
|
|
this.name = "close_" + md;
|
||
|
|
}
|
||
|
|
|
||
|
|
return function ( text, orig_match ) {
|
||
|
|
|
||
|
|
if (this[state_slot][0] == md) {
|
||
|
|
// Most recent em is of this type
|
||
|
|
//D:this.debug("closing", md);
|
||
|
|
this[state_slot].shift();
|
||
|
|
|
||
|
|
// "Consume" everything to go back to the recrusion in the else-block below
|
||
|
|
return[ text.length, new CloseTag(text.length-md.length) ];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Store a clone of the em/strong states
|
||
|
|
var other = this[other_slot].slice(),
|
||
|
|
state = this[state_slot].slice();
|
||
|
|
|
||
|
|
this[state_slot].unshift(md);
|
||
|
|
|
||
|
|
//D:this.debug_indent += " ";
|
||
|
|
|
||
|
|
// Recurse
|
||
|
|
var res = this.processInline( text.substr( md.length ) );
|
||
|
|
//D:this.debug_indent = this.debug_indent.substr(2);
|
||
|
|
|
||
|
|
var last = res[res.length - 1];
|
||
|
|
|
||
|
|
//D:this.debug("processInline from", tag + ": ", uneval( res ) );
|
||
|
|
|
||
|
|
var check = this[state_slot].shift();
|
||
|
|
if (last instanceof CloseTag) {
|
||
|
|
res.pop();
|
||
|
|
// We matched! Huzzah.
|
||
|
|
var consumed = text.length - last.len_after;
|
||
|
|
return [ consumed, [ tag ].concat(res) ];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Restore the state of the other kind. We might have mistakenly closed it.
|
||
|
|
this[other_slot] = other;
|
||
|
|
this[state_slot] = state;
|
||
|
|
|
||
|
|
// We can't reuse the processed result as it could have wrong parsing contexts in it.
|
||
|
|
return [ md.length, md ];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}; // End returned function
|
||
|
|
}
|
||
|
|
|
||
|
|
Markdown.dialects.Gruber.inline["**"] = strong_em("strong", "**");
|
||
|
|
Markdown.dialects.Gruber.inline["__"] = strong_em("strong", "__");
|
||
|
|
Markdown.dialects.Gruber.inline["*"] = strong_em("em", "*");
|
||
|
|
Markdown.dialects.Gruber.inline["_"] = strong_em("em", "_");
|
||
|
|
|
||
|
|
|
||
|
|
// Build default order from insertion order.
|
||
|
|
Markdown.buildBlockOrder = function(d) {
|
||
|
|
var ord = [];
|
||
|
|
for ( var i in d ) {
|
||
|
|
if ( i == "__order__" || i == "__call__" ) continue;
|
||
|
|
ord.push( i );
|
||
|
|
}
|
||
|
|
d.__order__ = ord;
|
||
|
|
};
|
||
|
|
|
||
|
|
// Build patterns for inline matcher
|
||
|
|
Markdown.buildInlinePatterns = function(d) {
|
||
|
|
var patterns = [];
|
||
|
|
|
||
|
|
for ( var i in d ) {
|
||
|
|
// __foo__ is reserved and not a pattern
|
||
|
|
if ( i.match( /^__.*__$/) ) continue;
|
||
|
|
var l = i.replace( /([\\.*+?|()\[\]{}])/g, "\\$1" )
|
||
|
|
.replace( /\n/, "\\n" );
|
||
|
|
patterns.push( i.length == 1 ? l : "(?:" + l + ")" );
|
||
|
|
}
|
||
|
|
|
||
|
|
patterns = patterns.join("|");
|
||
|
|
d.__patterns__ = patterns;
|
||
|
|
//print("patterns:", uneval( patterns ) );
|
||
|
|
|
||
|
|
var fn = d.__call__;
|
||
|
|
d.__call__ = function(text, pattern) {
|
||
|
|
if (pattern != undefined) {
|
||
|
|
return fn.call(this, text, pattern);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return fn.call(this, text, patterns);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
Markdown.DialectHelpers = {};
|
||
|
|
Markdown.DialectHelpers.inline_until_char = function( text, want ) {
|
||
|
|
var consumed = 0,
|
||
|
|
nodes = [];
|
||
|
|
|
||
|
|
while ( true ) {
|
||
|
|
if ( text[ consumed ] == want ) {
|
||
|
|
// Found the character we were looking for
|
||
|
|
consumed++;
|
||
|
|
return [ consumed, nodes ];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( consumed >= text.length ) {
|
||
|
|
// No closing char found. Abort.
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
var res = this.dialect.inline.__oneElement__.call(this, text.substr( consumed ) );
|
||
|
|
consumed += res[ 0 ];
|
||
|
|
// Add any returned nodes.
|
||
|
|
nodes.push.apply( nodes, res.slice( 1 ) );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Helper function to make sub-classing a dialect easier
|
||
|
|
Markdown.subclassDialect = function( d ) {
|
||
|
|
function Block() {}
|
||
|
|
Block.prototype = d.block;
|
||
|
|
function Inline() {}
|
||
|
|
Inline.prototype = d.inline;
|
||
|
|
|
||
|
|
return { block: new Block(), inline: new Inline() };
|
||
|
|
};
|
||
|
|
|
||
|
|
Markdown.buildBlockOrder ( Markdown.dialects.Gruber.block );
|
||
|
|
Markdown.buildInlinePatterns( Markdown.dialects.Gruber.inline );
|
||
|
|
|
||
|
|
Markdown.dialects.Maruku = Markdown.subclassDialect( Markdown.dialects.Gruber );
|
||
|
|
|
||
|
|
Markdown.dialects.Maruku.processMetaHash = function processMetaHash( meta_string ) {
|
||
|
|
var meta = split_meta_hash( meta_string ),
|
||
|
|
attr = {};
|
||
|
|
|
||
|
|
for ( var i = 0; i < meta.length; ++i ) {
|
||
|
|
// id: #foo
|
||
|
|
if ( /^#/.test( meta[ i ] ) ) {
|
||
|
|
attr.id = meta[ i ].substring( 1 );
|
||
|
|
}
|
||
|
|
// class: .foo
|
||
|
|
else if ( /^\./.test( meta[ i ] ) ) {
|
||
|
|
// if class already exists, append the new one
|
||
|
|
if ( attr['class'] ) {
|
||
|
|
attr['class'] = attr['class'] + meta[ i ].replace( /./, " " );
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
attr['class'] = meta[ i ].substring( 1 );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// attribute: foo=bar
|
||
|
|
else if ( /\=/.test( meta[ i ] ) ) {
|
||
|
|
var s = meta[ i ].split( /\=/ );
|
||
|
|
attr[ s[ 0 ] ] = s[ 1 ];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return attr;
|
||
|
|
}
|
||
|
|
|
||
|
|
function split_meta_hash( meta_string ) {
|
||
|
|
var meta = meta_string.split( "" ),
|
||
|
|
parts = [ "" ],
|
||
|
|
in_quotes = false;
|
||
|
|
|
||
|
|
while ( meta.length ) {
|
||
|
|
var letter = meta.shift();
|
||
|
|
switch ( letter ) {
|
||
|
|
case " " :
|
||
|
|
// if we're in a quoted section, keep it
|
||
|
|
if ( in_quotes ) {
|
||
|
|
parts[ parts.length - 1 ] += letter;
|
||
|
|
}
|
||
|
|
// otherwise make a new part
|
||
|
|
else {
|
||
|
|
parts.push( "" );
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case "'" :
|
||
|
|
case '"' :
|
||
|
|
// reverse the quotes and move straight on
|
||
|
|
in_quotes = !in_quotes;
|
||
|
|
break;
|
||
|
|
case "\\" :
|
||
|
|
// shift off the next letter to be used straight away.
|
||
|
|
// it was escaped so we'll keep it whatever it is
|
||
|
|
letter = meta.shift();
|
||
|
|
default :
|
||
|
|
parts[ parts.length - 1 ] += letter;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return parts;
|
||
|
|
}
|
||
|
|
|
||
|
|
Markdown.dialects.Maruku.block.document_meta = function document_meta( block, next ) {
|
||
|
|
// we're only interested in the first block
|
||
|
|
if ( block.lineNumber > 1 ) return undefined;
|
||
|
|
|
||
|
|
// document_meta blocks consist of one or more lines of `Key: Value\n`
|
||
|
|
if ( ! block.match( /^(?:\w+:.*\n)*\w+:.*$/ ) ) return undefined;
|
||
|
|
|
||
|
|
// make an attribute node if it doesn't exist
|
||
|
|
if ( !extract_attr( this.tree ) ) {
|
||
|
|
this.tree.splice( 1, 0, {} );
|
||
|
|
}
|
||
|
|
|
||
|
|
var pairs = block.split( /\n/ );
|
||
|
|
for ( p in pairs ) {
|
||
|
|
var m = pairs[ p ].match( /(\w+):\s*(.*)$/ ),
|
||
|
|
key = m[ 1 ].toLowerCase(),
|
||
|
|
value = m[ 2 ];
|
||
|
|
|
||
|
|
this.tree[ 1 ][ key ] = value;
|
||
|
|
}
|
||
|
|
|
||
|
|
// document_meta produces no content!
|
||
|
|
return [];
|
||
|
|
};
|
||
|
|
|
||
|
|
Markdown.dialects.Maruku.block.block_meta = function block_meta( block, next ) {
|
||
|
|
// check if the last line of the block is an meta hash
|
||
|
|
var m = block.match( /(^|\n) {0,3}\{:\s*((?:\\\}|[^\}])*)\s*\}$/ );
|
||
|
|
if ( !m ) return undefined;
|
||
|
|
|
||
|
|
// process the meta hash
|
||
|
|
var attr = this.dialect.processMetaHash( m[ 2 ] );
|
||
|
|
|
||
|
|
var hash;
|
||
|
|
|
||
|
|
// if we matched ^ then we need to apply meta to the previous block
|
||
|
|
if ( m[ 1 ] === "" ) {
|
||
|
|
var node = this.tree[ this.tree.length - 1 ];
|
||
|
|
hash = extract_attr( node );
|
||
|
|
|
||
|
|
// if the node is a string (rather than JsonML), bail
|
||
|
|
if ( typeof node === "string" ) return undefined;
|
||
|
|
|
||
|
|
// create the attribute hash if it doesn't exist
|
||
|
|
if ( !hash ) {
|
||
|
|
hash = {};
|
||
|
|
node.splice( 1, 0, hash );
|
||
|
|
}
|
||
|
|
|
||
|
|
// add the attributes in
|
||
|
|
for ( a in attr ) {
|
||
|
|
hash[ a ] = attr[ a ];
|
||
|
|
}
|
||
|
|
|
||
|
|
// return nothing so the meta hash is removed
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
|
||
|
|
// pull the meta hash off the block and process what's left
|
||
|
|
var b = block.replace( /\n.*$/, "" ),
|
||
|
|
result = this.processBlock( b, [] );
|
||
|
|
|
||
|
|
// get or make the attributes hash
|
||
|
|
hash = extract_attr( result[ 0 ] );
|
||
|
|
if ( !hash ) {
|
||
|
|
hash = {};
|
||
|
|
result[ 0 ].splice( 1, 0, hash );
|
||
|
|
}
|
||
|
|
|
||
|
|
// attach the attributes to the block
|
||
|
|
for ( a in attr ) {
|
||
|
|
hash[ a ] = attr[ a ];
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
};
|
||
|
|
|
||
|
|
Markdown.dialects.Maruku.block.definition_list = function definition_list( block, next ) {
|
||
|
|
// one or more terms followed by one or more definitions, in a single block
|
||
|
|
var tight = /^((?:[^\s:].*\n)+):\s+([\s\S]+)$/,
|
||
|
|
list = [ "dl" ],
|
||
|
|
i;
|
||
|
|
|
||
|
|
// see if we're dealing with a tight or loose block
|
||
|
|
if ( ( m = block.match( tight ) ) ) {
|
||
|
|
// pull subsequent tight DL blocks out of `next`
|
||
|
|
var blocks = [ block ];
|
||
|
|
while ( next.length && tight.exec( next[ 0 ] ) ) {
|
||
|
|
blocks.push( next.shift() );
|
||
|
|
}
|
||
|
|
|
||
|
|
for ( var b = 0; b < blocks.length; ++b ) {
|
||
|
|
var m = blocks[ b ].match( tight ),
|
||
|
|
terms = m[ 1 ].replace( /\n$/, "" ).split( /\n/ ),
|
||
|
|
defns = m[ 2 ].split( /\n:\s+/ );
|
||
|
|
|
||
|
|
// print( uneval( m ) );
|
||
|
|
|
||
|
|
for ( i = 0; i < terms.length; ++i ) {
|
||
|
|
list.push( [ "dt", terms[ i ] ] );
|
||
|
|
}
|
||
|
|
|
||
|
|
for ( i = 0; i < defns.length; ++i ) {
|
||
|
|
// run inline processing over the definition
|
||
|
|
list.push( [ "dd" ].concat( this.processInline( defns[ i ].replace( /(\n)\s+/, "$1" ) ) ) );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
return [ list ];
|
||
|
|
};
|
||
|
|
|
||
|
|
Markdown.dialects.Maruku.inline[ "{:" ] = function inline_meta( text, matches, out ) {
|
||
|
|
if ( !out.length ) {
|
||
|
|
return [ 2, "{:" ];
|
||
|
|
}
|
||
|
|
|
||
|
|
// get the preceeding element
|
||
|
|
var before = out[ out.length - 1 ];
|
||
|
|
|
||
|
|
if ( typeof before === "string" ) {
|
||
|
|
return [ 2, "{:" ];
|
||
|
|
}
|
||
|
|
|
||
|
|
// match a meta hash
|
||
|
|
var m = text.match( /^\{:\s*((?:\\\}|[^\}])*)\s*\}/ );
|
||
|
|
|
||
|
|
// no match, false alarm
|
||
|
|
if ( !m ) {
|
||
|
|
return [ 2, "{:" ];
|
||
|
|
}
|
||
|
|
|
||
|
|
// attach the attributes to the preceeding element
|
||
|
|
var meta = this.dialect.processMetaHash( m[ 1 ] ),
|
||
|
|
attr = extract_attr( before );
|
||
|
|
|
||
|
|
if ( !attr ) {
|
||
|
|
attr = {};
|
||
|
|
before.splice( 1, 0, attr );
|
||
|
|
}
|
||
|
|
|
||
|
|
for ( var k in meta ) {
|
||
|
|
attr[ k ] = meta[ k ];
|
||
|
|
}
|
||
|
|
|
||
|
|
// cut out the string and replace it with nothing
|
||
|
|
return [ m[ 0 ].length, "" ];
|
||
|
|
};
|
||
|
|
|
||
|
|
Markdown.buildBlockOrder ( Markdown.dialects.Maruku.block );
|
||
|
|
Markdown.buildInlinePatterns( Markdown.dialects.Maruku.inline );
|
||
|
|
|
||
|
|
var isArray = Array.isArray || function(obj) {
|
||
|
|
return Object.prototype.toString.call(obj) == '[object Array]';
|
||
|
|
};
|
||
|
|
|
||
|
|
var forEach;
|
||
|
|
// Don't mess with Array.prototype. Its not friendly
|
||
|
|
if ( Array.prototype.forEach ) {
|
||
|
|
forEach = function( arr, cb, thisp ) {
|
||
|
|
return arr.forEach( cb, thisp );
|
||
|
|
};
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
forEach = function(arr, cb, thisp) {
|
||
|
|
for (var i = 0; i < arr.length; i++) {
|
||
|
|
cb.call(thisp || arr, arr[i], i, arr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function extract_attr( jsonml ) {
|
||
|
|
return isArray(jsonml)
|
||
|
|
&& jsonml.length > 1
|
||
|
|
&& typeof jsonml[ 1 ] === "object"
|
||
|
|
&& !( isArray(jsonml[ 1 ]) )
|
||
|
|
? jsonml[ 1 ]
|
||
|
|
: undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* renderJsonML( jsonml[, options] ) -> String
|
||
|
|
* - jsonml (Array): JsonML array to render to XML
|
||
|
|
* - options (Object): options
|
||
|
|
*
|
||
|
|
* Converts the given JsonML into well-formed XML.
|
||
|
|
*
|
||
|
|
* The options currently understood are:
|
||
|
|
*
|
||
|
|
* - root (Boolean): wether or not the root node should be included in the
|
||
|
|
* output, or just its children. The default `false` is to not include the
|
||
|
|
* root itself.
|
||
|
|
*/
|
||
|
|
expose.renderJsonML = function( jsonml, options ) {
|
||
|
|
options = options || {};
|
||
|
|
// include the root element in the rendered output?
|
||
|
|
options.root = options.root || false;
|
||
|
|
|
||
|
|
var content = [];
|
||
|
|
|
||
|
|
if ( options.root ) {
|
||
|
|
content.push( render_tree( jsonml ) );
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
jsonml.shift(); // get rid of the tag
|
||
|
|
if ( jsonml.length && typeof jsonml[ 0 ] === "object" && !( jsonml[ 0 ] instanceof Array ) ) {
|
||
|
|
jsonml.shift(); // get rid of the attributes
|
||
|
|
}
|
||
|
|
|
||
|
|
while ( jsonml.length ) {
|
||
|
|
content.push( render_tree( jsonml.shift() ) );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return content.join( "\n\n" );
|
||
|
|
};
|
||
|
|
|
||
|
|
function escapeHTML( text ) {
|
||
|
|
return text.replace( /&/g, "&" )
|
||
|
|
.replace( /</g, "<" )
|
||
|
|
.replace( />/g, ">" )
|
||
|
|
.replace( /"/g, """ )
|
||
|
|
.replace( /'/g, "'" );
|
||
|
|
}
|
||
|
|
|
||
|
|
function render_tree( jsonml ) {
|
||
|
|
// basic case
|
||
|
|
if ( typeof jsonml === "string" ) {
|
||
|
|
return escapeHTML( jsonml );
|
||
|
|
}
|
||
|
|
|
||
|
|
var tag = jsonml.shift(),
|
||
|
|
attributes = {},
|
||
|
|
content = [];
|
||
|
|
|
||
|
|
if ( jsonml.length && typeof jsonml[ 0 ] === "object" && !( jsonml[ 0 ] instanceof Array ) ) {
|
||
|
|
attributes = jsonml.shift();
|
||
|
|
}
|
||
|
|
|
||
|
|
while ( jsonml.length ) {
|
||
|
|
content.push( arguments.callee( jsonml.shift() ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
var tag_attrs = "";
|
||
|
|
for ( var a in attributes ) {
|
||
|
|
tag_attrs += " " + a + '="' + escapeHTML( attributes[ a ] ) + '"';
|
||
|
|
}
|
||
|
|
|
||
|
|
// be careful about adding whitespace here for inline elements
|
||
|
|
if ( tag == "img" || tag == "br" || tag == "hr" ) {
|
||
|
|
return "<"+ tag + tag_attrs + "/>";
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return "<"+ tag + tag_attrs + ">" + content.join( "" ) + "</" + tag + ">";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function convert_tree_to_html( tree, references, options ) {
|
||
|
|
var i;
|
||
|
|
options = options || {};
|
||
|
|
|
||
|
|
// shallow clone
|
||
|
|
var jsonml = tree.slice( 0 );
|
||
|
|
|
||
|
|
if (typeof options.preprocessTreeNode === "function") {
|
||
|
|
jsonml = options.preprocessTreeNode(jsonml, references);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Clone attributes if they exist
|
||
|
|
var attrs = extract_attr( jsonml );
|
||
|
|
if ( attrs ) {
|
||
|
|
jsonml[ 1 ] = {};
|
||
|
|
for ( i in attrs ) {
|
||
|
|
jsonml[ 1 ][ i ] = attrs[ i ];
|
||
|
|
}
|
||
|
|
attrs = jsonml[ 1 ];
|
||
|
|
}
|
||
|
|
|
||
|
|
// basic case
|
||
|
|
if ( typeof jsonml === "string" ) {
|
||
|
|
return jsonml;
|
||
|
|
}
|
||
|
|
|
||
|
|
// convert this node
|
||
|
|
switch ( jsonml[ 0 ] ) {
|
||
|
|
case "header":
|
||
|
|
jsonml[ 0 ] = "h" + jsonml[ 1 ].level;
|
||
|
|
delete jsonml[ 1 ].level;
|
||
|
|
break;
|
||
|
|
case "bulletlist":
|
||
|
|
jsonml[ 0 ] = "ul";
|
||
|
|
break;
|
||
|
|
case "numberlist":
|
||
|
|
jsonml[ 0 ] = "ol";
|
||
|
|
break;
|
||
|
|
case "listitem":
|
||
|
|
jsonml[ 0 ] = "li";
|
||
|
|
break;
|
||
|
|
case "para":
|
||
|
|
jsonml[ 0 ] = "p";
|
||
|
|
break;
|
||
|
|
case "markdown":
|
||
|
|
jsonml[ 0 ] = "html";
|
||
|
|
if ( attrs ) delete attrs.references;
|
||
|
|
break;
|
||
|
|
case "code_block":
|
||
|
|
jsonml[ 0 ] = "pre";
|
||
|
|
i = attrs ? 2 : 1;
|
||
|
|
var code = [ "code" ];
|
||
|
|
code.push.apply( code, jsonml.splice( i ) );
|
||
|
|
jsonml[ i ] = code;
|
||
|
|
break;
|
||
|
|
case "inlinecode":
|
||
|
|
jsonml[ 0 ] = "code";
|
||
|
|
break;
|
||
|
|
case "img":
|
||
|
|
jsonml[ 1 ].src = jsonml[ 1 ].href;
|
||
|
|
delete jsonml[ 1 ].href;
|
||
|
|
break;
|
||
|
|
case "linebreak":
|
||
|
|
jsonml[ 0 ] = "br";
|
||
|
|
break;
|
||
|
|
case "link":
|
||
|
|
jsonml[ 0 ] = "a";
|
||
|
|
break;
|
||
|
|
case "link_ref":
|
||
|
|
jsonml[ 0 ] = "a";
|
||
|
|
|
||
|
|
// grab this ref and clean up the attribute node
|
||
|
|
var ref = references[ attrs.ref ];
|
||
|
|
|
||
|
|
// if the reference exists, make the link
|
||
|
|
if ( ref ) {
|
||
|
|
delete attrs.ref;
|
||
|
|
|
||
|
|
// add in the href and title, if present
|
||
|
|
attrs.href = ref.href;
|
||
|
|
if ( ref.title ) {
|
||
|
|
attrs.title = ref.title;
|
||
|
|
}
|
||
|
|
|
||
|
|
// get rid of the unneeded original text
|
||
|
|
delete attrs.original;
|
||
|
|
}
|
||
|
|
// the reference doesn't exist, so revert to plain text
|
||
|
|
else {
|
||
|
|
return attrs.original;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case "img_ref":
|
||
|
|
jsonml[ 0 ] = "img";
|
||
|
|
|
||
|
|
// grab this ref and clean up the attribute node
|
||
|
|
var ref = references[ attrs.ref ];
|
||
|
|
|
||
|
|
// if the reference exists, make the link
|
||
|
|
if ( ref ) {
|
||
|
|
delete attrs.ref;
|
||
|
|
|
||
|
|
// add in the href and title, if present
|
||
|
|
attrs.src = ref.href;
|
||
|
|
if ( ref.title ) {
|
||
|
|
attrs.title = ref.title;
|
||
|
|
}
|
||
|
|
|
||
|
|
// get rid of the unneeded original text
|
||
|
|
delete attrs.original;
|
||
|
|
}
|
||
|
|
// the reference doesn't exist, so revert to plain text
|
||
|
|
else {
|
||
|
|
return attrs.original;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// convert all the children
|
||
|
|
i = 1;
|
||
|
|
|
||
|
|
// deal with the attribute node, if it exists
|
||
|
|
if ( attrs ) {
|
||
|
|
// if there are keys, skip over it
|
||
|
|
for ( var key in jsonml[ 1 ] ) {
|
||
|
|
i = 2;
|
||
|
|
}
|
||
|
|
// if there aren't, remove it
|
||
|
|
if ( i === 1 ) {
|
||
|
|
jsonml.splice( i, 1 );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for ( ; i < jsonml.length; ++i ) {
|
||
|
|
jsonml[ i ] = arguments.callee( jsonml[ i ], references, options );
|
||
|
|
}
|
||
|
|
|
||
|
|
return jsonml;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// merges adjacent text nodes into a single node
|
||
|
|
function merge_text_nodes( jsonml ) {
|
||
|
|
// skip the tag name and attribute hash
|
||
|
|
var i = extract_attr( jsonml ) ? 2 : 1;
|
||
|
|
|
||
|
|
while ( i < jsonml.length ) {
|
||
|
|
// if it's a string check the next item too
|
||
|
|
if ( typeof jsonml[ i ] === "string" ) {
|
||
|
|
if ( i + 1 < jsonml.length && typeof jsonml[ i + 1 ] === "string" ) {
|
||
|
|
// merge the second string into the first and remove it
|
||
|
|
jsonml[ i ] += jsonml.splice( i + 1, 1 )[ 0 ];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
++i;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// if it's not a string recurse
|
||
|
|
else {
|
||
|
|
arguments.callee( jsonml[ i ] );
|
||
|
|
++i;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
} )( (function() {
|
||
|
|
if ( typeof exports === "undefined" ) {
|
||
|
|
window.markdown = {};
|
||
|
|
return window.markdown;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return exports;
|
||
|
|
}
|
||
|
|
} )() );
|