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2506 lines
70 KiB
2506 lines
70 KiB
/** |
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* |
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* showdown: https://github.com/showdownjs/showdown |
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* |
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* author: Di (微信小程序开发工程师) |
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* organization: WeAppDev(微信小程序开发论坛)(http://weappdev.com) |
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* 垂直微信小程序开发交流社区 |
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* |
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* github地址: https://github.com/icindy/wxParse |
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* |
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* for: 微信小程序富文本解析 |
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* detail : http://weappdev.com/t/wxparse-alpha0-1-html-markdown/184 |
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*/ |
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function getDefaultOpts(simple) { |
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'use strict'; |
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var defaultOptions = { |
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omitExtraWLInCodeBlocks: { |
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defaultValue: false, |
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describe: 'Omit the default extra whiteline added to code blocks', |
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type: 'boolean' |
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}, |
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noHeaderId: { |
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defaultValue: false, |
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describe: 'Turn on/off generated header id', |
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type: 'boolean' |
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}, |
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prefixHeaderId: { |
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defaultValue: false, |
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describe: 'Specify a prefix to generated header ids', |
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type: 'string' |
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}, |
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headerLevelStart: { |
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defaultValue: false, |
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describe: 'The header blocks level start', |
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type: 'integer' |
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}, |
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parseImgDimensions: { |
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defaultValue: false, |
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describe: 'Turn on/off image dimension parsing', |
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type: 'boolean' |
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}, |
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simplifiedAutoLink: { |
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defaultValue: false, |
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describe: 'Turn on/off GFM autolink style', |
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type: 'boolean' |
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}, |
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literalMidWordUnderscores: { |
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defaultValue: false, |
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describe: 'Parse midword underscores as literal underscores', |
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type: 'boolean' |
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}, |
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strikethrough: { |
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defaultValue: false, |
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describe: 'Turn on/off strikethrough support', |
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type: 'boolean' |
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}, |
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tables: { |
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defaultValue: false, |
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describe: 'Turn on/off tables support', |
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type: 'boolean' |
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}, |
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tablesHeaderId: { |
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defaultValue: false, |
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describe: 'Add an id to table headers', |
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type: 'boolean' |
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}, |
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ghCodeBlocks: { |
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defaultValue: true, |
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describe: 'Turn on/off GFM fenced code blocks support', |
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type: 'boolean' |
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}, |
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tasklists: { |
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defaultValue: false, |
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describe: 'Turn on/off GFM tasklist support', |
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type: 'boolean' |
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}, |
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smoothLivePreview: { |
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defaultValue: false, |
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describe: 'Prevents weird effects in live previews due to incomplete input', |
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type: 'boolean' |
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}, |
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smartIndentationFix: { |
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defaultValue: false, |
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description: 'Tries to smartly fix identation in es6 strings', |
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type: 'boolean' |
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} |
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}; |
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|
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if (simple === false) { |
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return JSON.parse(JSON.stringify(defaultOptions)); |
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} |
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|
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var ret = {}; |
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|
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for (var opt in defaultOptions) { |
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if (defaultOptions.hasOwnProperty(opt)) { |
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ret[opt] = defaultOptions[opt].defaultValue; |
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} |
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} |
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return ret; |
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} |
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/** |
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* Created by Tivie on 06-01-2015. |
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*/ |
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// Private properties |
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var showdown = {}, |
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parsers = {}, |
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extensions = {}, |
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globalOptions = getDefaultOpts(true), |
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flavor = { |
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github: { |
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omitExtraWLInCodeBlocks: true, |
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prefixHeaderId: 'user-content-', |
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simplifiedAutoLink: true, |
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literalMidWordUnderscores: true, |
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strikethrough: true, |
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tables: true, |
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tablesHeaderId: true, |
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ghCodeBlocks: true, |
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tasklists: true |
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}, |
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vanilla: getDefaultOpts(true) |
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}; |
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/** |
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* helper namespace |
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* @type {{}} |
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*/ |
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showdown.helper = {}; |
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/** |
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* TODO LEGACY SUPPORT CODE |
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* @type {{}} |
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*/ |
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showdown.extensions = {}; |
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/** |
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* Set a global option |
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* @static |
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* @param {string} key |
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* @param {*} value |
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* @returns {showdown} |
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*/ |
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|
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showdown.setOption = function (key, value) { |
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'use strict'; |
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globalOptions[key] = value; |
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return this; |
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}; |
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/** |
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* Get a global option |
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* @static |
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* @param {string} key |
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* @returns {*} |
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*/ |
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showdown.getOption = function (key) { |
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'use strict'; |
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|
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return globalOptions[key]; |
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}; |
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/** |
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* Get the global options |
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* @static |
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* @returns {{}} |
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*/ |
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showdown.getOptions = function () { |
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'use strict'; |
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return globalOptions; |
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}; |
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/** |
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* Reset global options to the default values |
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* @static |
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*/ |
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showdown.resetOptions = function () { |
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'use strict'; |
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globalOptions = getDefaultOpts(true); |
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}; |
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/** |
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* Set the flavor showdown should use as default |
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* @param {string} name |
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*/ |
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showdown.setFlavor = function (name) { |
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'use strict'; |
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|
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if (flavor.hasOwnProperty(name)) { |
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var preset = flavor[name]; |
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|
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for (var option in preset) { |
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if (preset.hasOwnProperty(option)) { |
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globalOptions[option] = preset[option]; |
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} |
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} |
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} |
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}; |
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/** |
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* Get the default options |
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* @static |
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* @param {boolean} [simple=true] |
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* @returns {{}} |
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*/ |
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showdown.getDefaultOptions = function (simple) { |
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'use strict'; |
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|
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return getDefaultOpts(simple); |
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}; |
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/** |
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* Get or set a subParser |
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* |
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* subParser(name) - Get a registered subParser |
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* subParser(name, func) - Register a subParser |
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* @static |
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* @param {string} name |
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* @param {function} [func] |
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* @returns {*} |
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*/ |
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showdown.subParser = function (name, func) { |
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'use strict'; |
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|
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if (showdown.helper.isString(name)) { |
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if (typeof func !== 'undefined') { |
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parsers[name] = func; |
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} else { |
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if (parsers.hasOwnProperty(name)) { |
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return parsers[name]; |
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} else { |
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throw Error('SubParser named ' + name + ' not registered!'); |
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} |
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} |
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} |
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}; |
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/** |
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* Gets or registers an extension |
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* @static |
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* @param {string} name |
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* @param {object|function=} ext |
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* @returns {*} |
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*/ |
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showdown.extension = function (name, ext) { |
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'use strict'; |
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|
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if (!showdown.helper.isString(name)) { |
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throw Error('Extension \'name\' must be a string'); |
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} |
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name = showdown.helper.stdExtName(name); // Getter |
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if (showdown.helper.isUndefined(ext)) { |
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if (!extensions.hasOwnProperty(name)) { |
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throw Error('Extension named ' + name + ' is not registered!'); |
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} |
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return extensions[name]; // Setter |
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} else { |
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// Expand extension if it's wrapped in a function |
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if (typeof ext === 'function') { |
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ext = ext(); |
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} // Ensure extension is an array |
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if (!showdown.helper.isArray(ext)) { |
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ext = [ext]; |
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} |
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var validExtension = validate(ext, name); |
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if (validExtension.valid) { |
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extensions[name] = ext; |
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} else { |
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throw Error(validExtension.error); |
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} |
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} |
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}; |
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/** |
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* Gets all extensions registered |
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* @returns {{}} |
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*/ |
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showdown.getAllExtensions = function () { |
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'use strict'; |
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return extensions; |
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}; |
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/** |
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* Remove an extension |
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* @param {string} name |
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*/ |
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showdown.removeExtension = function (name) { |
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'use strict'; |
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delete extensions[name]; |
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}; |
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/** |
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* Removes all extensions |
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*/ |
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showdown.resetExtensions = function () { |
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'use strict'; |
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extensions = {}; |
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}; |
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/** |
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* Validate extension |
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* @param {array} extension |
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* @param {string} name |
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* @returns {{valid: boolean, error: string}} |
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*/ |
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function validate(extension, name) { |
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'use strict'; |
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|
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var errMsg = name ? 'Error in ' + name + ' extension->' : 'Error in unnamed extension', |
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ret = { |
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valid: true, |
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error: '' |
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}; |
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if (!showdown.helper.isArray(extension)) { |
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extension = [extension]; |
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} |
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for (var i = 0; i < extension.length; ++i) { |
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var baseMsg = errMsg + ' sub-extension ' + i + ': ', |
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ext = extension[i]; |
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|
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if (typeof ext !== 'object') { |
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ret.valid = false; |
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ret.error = baseMsg + 'must be an object, but ' + typeof ext + ' given'; |
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return ret; |
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} |
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|
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if (!showdown.helper.isString(ext.type)) { |
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ret.valid = false; |
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ret.error = baseMsg + 'property "type" must be a string, but ' + typeof ext.type + ' given'; |
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return ret; |
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} |
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var type = ext.type = ext.type.toLowerCase(); // normalize extension type |
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|
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if (type === 'language') { |
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type = ext.type = 'lang'; |
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} |
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if (type === 'html') { |
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type = ext.type = 'output'; |
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} |
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|
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if (type !== 'lang' && type !== 'output' && type !== 'listener') { |
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ret.valid = false; |
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ret.error = baseMsg + 'type ' + type + ' is not recognized. Valid values: "lang/language", "output/html" or "listener"'; |
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return ret; |
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} |
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|
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if (type === 'listener') { |
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if (showdown.helper.isUndefined(ext.listeners)) { |
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ret.valid = false; |
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ret.error = baseMsg + '. Extensions of type "listener" must have a property called "listeners"'; |
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return ret; |
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} |
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} else { |
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if (showdown.helper.isUndefined(ext.filter) && showdown.helper.isUndefined(ext.regex)) { |
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ret.valid = false; |
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ret.error = baseMsg + type + ' extensions must define either a "regex" property or a "filter" method'; |
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return ret; |
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} |
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} |
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|
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if (ext.listeners) { |
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if (typeof ext.listeners !== 'object') { |
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ret.valid = false; |
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ret.error = baseMsg + '"listeners" property must be an object but ' + typeof ext.listeners + ' given'; |
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return ret; |
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} |
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|
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for (var ln in ext.listeners) { |
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if (ext.listeners.hasOwnProperty(ln)) { |
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if (typeof ext.listeners[ln] !== 'function') { |
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ret.valid = false; |
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ret.error = baseMsg + '"listeners" property must be an hash of [event name]: [callback]. listeners.' + ln + ' must be a function but ' + typeof ext.listeners[ln] + ' given'; |
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return ret; |
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} |
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} |
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} |
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} |
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|
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if (ext.filter) { |
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if (typeof ext.filter !== 'function') { |
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ret.valid = false; |
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ret.error = baseMsg + '"filter" must be a function, but ' + typeof ext.filter + ' given'; |
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return ret; |
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} |
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} else if (ext.regex) { |
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if (showdown.helper.isString(ext.regex)) { |
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ext.regex = new RegExp(ext.regex, 'g'); |
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} |
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|
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if (!ext.regex instanceof RegExp) { |
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ret.valid = false; |
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ret.error = baseMsg + '"regex" property must either be a string or a RegExp object, but ' + typeof ext.regex + ' given'; |
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return ret; |
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} |
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|
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if (showdown.helper.isUndefined(ext.replace)) { |
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ret.valid = false; |
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ret.error = baseMsg + '"regex" extensions must implement a replace string or function'; |
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return ret; |
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} |
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} |
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} |
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|
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return ret; |
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} |
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/** |
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* Validate extension |
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* @param {object} ext |
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* @returns {boolean} |
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*/ |
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showdown.validateExtension = function (ext) { |
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'use strict'; |
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var validateExtension = validate(ext, null); |
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|
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if (!validateExtension.valid) { |
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console.warn(validateExtension.error); |
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return false; |
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} |
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return true; |
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}; |
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/** |
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* showdownjs helper functions |
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*/ |
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if (!showdown.hasOwnProperty('helper')) { |
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showdown.helper = {}; |
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} |
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/** |
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* Check if var is string |
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* @static |
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* @param {string} a |
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* @returns {boolean} |
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*/ |
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showdown.helper.isString = function isString(a) { |
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'use strict'; |
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|
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return typeof a === 'string' || a instanceof String; |
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}; |
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/** |
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* Check if var is a function |
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* @static |
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* @param {string} a |
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* @returns {boolean} |
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*/ |
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showdown.helper.isFunction = function isFunction(a) { |
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'use strict'; |
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|
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var getType = {}; |
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return a && getType.toString.call(a) === '[object Function]'; |
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}; |
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/** |
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* ForEach helper function |
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* @static |
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* @param {*} obj |
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* @param {function} callback |
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*/ |
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showdown.helper.forEach = function forEach(obj, callback) { |
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'use strict'; |
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|
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if (typeof obj.forEach === 'function') { |
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obj.forEach(callback); |
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} else { |
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for (var i = 0; i < obj.length; i++) { |
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callback(obj[i], i, obj); |
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} |
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} |
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}; |
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/** |
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* isArray helper function |
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* @static |
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* @param {*} a |
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* @returns {boolean} |
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*/ |
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showdown.helper.isArray = function isArray(a) { |
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'use strict'; |
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|
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return a.constructor === Array; |
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}; |
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/** |
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* Check if value is undefined |
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* @static |
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* @param {*} value The value to check. |
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* @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. |
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*/ |
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showdown.helper.isUndefined = function isUndefined(value) { |
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'use strict'; |
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|
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return typeof value === 'undefined'; |
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}; |
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/** |
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* Standardidize extension name |
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* @static |
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* @param {string} s extension name |
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* @returns {string} |
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*/ |
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showdown.helper.stdExtName = function (s) { |
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'use strict'; |
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|
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return s.replace(/[_-]||\s/g, '').toLowerCase(); |
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}; |
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|
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function escapeCharactersCallback(wholeMatch, m1) { |
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'use strict'; |
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|
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var charCodeToEscape = m1.charCodeAt(0); |
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return '~E' + charCodeToEscape + 'E'; |
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} |
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/** |
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* Callback used to escape characters when passing through String.replace |
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* @static |
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* @param {string} wholeMatch |
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* @param {string} m1 |
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* @returns {string} |
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*/ |
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showdown.helper.escapeCharactersCallback = escapeCharactersCallback; |
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/** |
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* Escape characters in a string |
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* @static |
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* @param {string} text |
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* @param {string} charsToEscape |
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* @param {boolean} afterBackslash |
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* @returns {XML|string|void|*} |
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*/ |
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|
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showdown.helper.escapeCharacters = function escapeCharacters(text, charsToEscape, afterBackslash) { |
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'use strict'; // First we have to escape the escape characters so that |
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// we can build a character class out of them |
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|
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var regexString = '([' + charsToEscape.replace(/([\[\]\\])/g, '\\$1') + '])'; |
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|
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if (afterBackslash) { |
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regexString = '\\\\' + regexString; |
|
} |
|
|
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var regex = new RegExp(regexString, 'g'); |
|
text = text.replace(regex, escapeCharactersCallback); |
|
return text; |
|
}; |
|
|
|
var rgxFindMatchPos = function (str, left, right, flags) { |
|
'use strict'; |
|
|
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var f = flags || '', |
|
g = f.indexOf('g') > -1, |
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x = new RegExp(left + '|' + right, 'g' + f.replace(/g/g, '')), |
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l = new RegExp(left, f.replace(/g/g, '')), |
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pos = [], |
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t, |
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s, |
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m, |
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start, |
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end; |
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|
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do { |
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t = 0; |
|
|
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while (m = x.exec(str)) { |
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if (l.test(m[0])) { |
|
if (!t++) { |
|
s = x.lastIndex; |
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start = s - m[0].length; |
|
} |
|
} else if (t) { |
|
if (! --t) { |
|
end = m.index + m[0].length; |
|
var obj = { |
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left: { |
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start: start, |
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end: s |
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}, |
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match: { |
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start: s, |
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end: m.index |
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}, |
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right: { |
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start: m.index, |
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end: end |
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}, |
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wholeMatch: { |
|
start: start, |
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end: end |
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} |
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}; |
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pos.push(obj); |
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|
|
if (!g) { |
|
return pos; |
|
} |
|
} |
|
} |
|
} |
|
} while (t && (x.lastIndex = s)); |
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|
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return pos; |
|
}; |
|
/** |
|
* matchRecursiveRegExp |
|
* |
|
* (c) 2007 Steven Levithan <stevenlevithan.com> |
|
* MIT License |
|
* |
|
* Accepts a string to search, a left and right format delimiter |
|
* as regex patterns, and optional regex flags. Returns an array |
|
* of matches, allowing nested instances of left/right delimiters. |
|
* Use the "g" flag to return all matches, otherwise only the |
|
* first is returned. Be careful to ensure that the left and |
|
* right format delimiters produce mutually exclusive matches. |
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* Backreferences are not supported within the right delimiter |
|
* due to how it is internally combined with the left delimiter. |
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* When matching strings whose format delimiters are unbalanced |
|
* to the left or right, the output is intentionally as a |
|
* conventional regex library with recursion support would |
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* produce, e.g. "<<x>" and "<x>>" both produce ["x"] when using |
|
* "<" and ">" as the delimiters (both strings contain a single, |
|
* balanced instance of "<x>"). |
|
* |
|
* examples: |
|
* matchRecursiveRegExp("test", "\\(", "\\)") |
|
* returns: [] |
|
* matchRecursiveRegExp("<t<<e>><s>>t<>", "<", ">", "g") |
|
* returns: ["t<<e>><s>", ""] |
|
* matchRecursiveRegExp("<div id=\"x\">test</div>", "<div\\b[^>]*>", "</div>", "gi") |
|
* returns: ["test"] |
|
*/ |
|
|
|
|
|
showdown.helper.matchRecursiveRegExp = function (str, left, right, flags) { |
|
'use strict'; |
|
|
|
var matchPos = rgxFindMatchPos(str, left, right, flags), |
|
results = []; |
|
|
|
for (var i = 0; i < matchPos.length; ++i) { |
|
results.push([str.slice(matchPos[i].wholeMatch.start, matchPos[i].wholeMatch.end), str.slice(matchPos[i].match.start, matchPos[i].match.end), str.slice(matchPos[i].left.start, matchPos[i].left.end), str.slice(matchPos[i].right.start, matchPos[i].right.end)]); |
|
} |
|
|
|
return results; |
|
}; |
|
/** |
|
* |
|
* @param {string} str |
|
* @param {string|function} replacement |
|
* @param {string} left |
|
* @param {string} right |
|
* @param {string} flags |
|
* @returns {string} |
|
*/ |
|
|
|
|
|
showdown.helper.replaceRecursiveRegExp = function (str, replacement, left, right, flags) { |
|
'use strict'; |
|
|
|
if (!showdown.helper.isFunction(replacement)) { |
|
var repStr = replacement; |
|
|
|
replacement = function () { |
|
return repStr; |
|
}; |
|
} |
|
|
|
var matchPos = rgxFindMatchPos(str, left, right, flags), |
|
finalStr = str, |
|
lng = matchPos.length; |
|
|
|
if (lng > 0) { |
|
var bits = []; |
|
|
|
if (matchPos[0].wholeMatch.start !== 0) { |
|
bits.push(str.slice(0, matchPos[0].wholeMatch.start)); |
|
} |
|
|
|
for (var i = 0; i < lng; ++i) { |
|
bits.push(replacement(str.slice(matchPos[i].wholeMatch.start, matchPos[i].wholeMatch.end), str.slice(matchPos[i].match.start, matchPos[i].match.end), str.slice(matchPos[i].left.start, matchPos[i].left.end), str.slice(matchPos[i].right.start, matchPos[i].right.end))); |
|
|
|
if (i < lng - 1) { |
|
bits.push(str.slice(matchPos[i].wholeMatch.end, matchPos[i + 1].wholeMatch.start)); |
|
} |
|
} |
|
|
|
if (matchPos[lng - 1].wholeMatch.end < str.length) { |
|
bits.push(str.slice(matchPos[lng - 1].wholeMatch.end)); |
|
} |
|
|
|
finalStr = bits.join(''); |
|
} |
|
|
|
return finalStr; |
|
}; |
|
/** |
|
* POLYFILLS |
|
*/ |
|
|
|
|
|
if (showdown.helper.isUndefined(console)) { |
|
console = { |
|
warn: function (msg) { |
|
'use strict'; |
|
|
|
alert(msg); |
|
}, |
|
log: function (msg) { |
|
'use strict'; |
|
|
|
alert(msg); |
|
}, |
|
error: function (msg) { |
|
'use strict'; |
|
|
|
throw msg; |
|
} |
|
}; |
|
} |
|
/** |
|
* Created by Estevao on 31-05-2015. |
|
*/ |
|
|
|
/** |
|
* Showdown Converter class |
|
* @class |
|
* @param {object} [converterOptions] |
|
* @returns {Converter} |
|
*/ |
|
|
|
|
|
showdown.Converter = function (converterOptions) { |
|
'use strict'; |
|
|
|
var |
|
/** |
|
* Options used by this converter |
|
* @private |
|
* @type {{}} |
|
*/ |
|
options = {}, |
|
|
|
/** |
|
* Language extensions used by this converter |
|
* @private |
|
* @type {Array} |
|
*/ |
|
langExtensions = [], |
|
|
|
/** |
|
* Output modifiers extensions used by this converter |
|
* @private |
|
* @type {Array} |
|
*/ |
|
outputModifiers = [], |
|
|
|
/** |
|
* Event listeners |
|
* @private |
|
* @type {{}} |
|
*/ |
|
listeners = {}; |
|
|
|
_constructor(); |
|
/** |
|
* Converter constructor |
|
* @private |
|
*/ |
|
|
|
|
|
function _constructor() { |
|
converterOptions = converterOptions || {}; |
|
|
|
for (var gOpt in globalOptions) { |
|
if (globalOptions.hasOwnProperty(gOpt)) { |
|
options[gOpt] = globalOptions[gOpt]; |
|
} |
|
} // Merge options |
|
|
|
|
|
if (typeof converterOptions === 'object') { |
|
for (var opt in converterOptions) { |
|
if (converterOptions.hasOwnProperty(opt)) { |
|
options[opt] = converterOptions[opt]; |
|
} |
|
} |
|
} else { |
|
throw Error('Converter expects the passed parameter to be an object, but ' + typeof converterOptions + ' was passed instead.'); |
|
} |
|
|
|
if (options.extensions) { |
|
showdown.helper.forEach(options.extensions, _parseExtension); |
|
} |
|
} |
|
/** |
|
* Parse extension |
|
* @param {*} ext |
|
* @param {string} [name=''] |
|
* @private |
|
*/ |
|
|
|
|
|
function _parseExtension(ext, name) { |
|
name = name || null; // If it's a string, the extension was previously loaded |
|
|
|
if (showdown.helper.isString(ext)) { |
|
ext = showdown.helper.stdExtName(ext); |
|
name = ext; // LEGACY_SUPPORT CODE |
|
|
|
if (showdown.extensions[ext]) { |
|
console.warn('DEPRECATION WARNING: ' + ext + ' is an old extension that uses a deprecated loading method.' + 'Please inform the developer that the extension should be updated!'); |
|
legacyExtensionLoading(showdown.extensions[ext], ext); |
|
return; // END LEGACY SUPPORT CODE |
|
} else if (!showdown.helper.isUndefined(extensions[ext])) { |
|
ext = extensions[ext]; |
|
} else { |
|
throw Error('Extension "' + ext + '" could not be loaded. It was either not found or is not a valid extension.'); |
|
} |
|
} |
|
|
|
if (typeof ext === 'function') { |
|
ext = ext(); |
|
} |
|
|
|
if (!showdown.helper.isArray(ext)) { |
|
ext = [ext]; |
|
} |
|
|
|
var validExt = validate(ext, name); |
|
|
|
if (!validExt.valid) { |
|
throw Error(validExt.error); |
|
} |
|
|
|
for (var i = 0; i < ext.length; ++i) { |
|
switch (ext[i].type) { |
|
case 'lang': |
|
langExtensions.push(ext[i]); |
|
break; |
|
|
|
case 'output': |
|
outputModifiers.push(ext[i]); |
|
break; |
|
} |
|
|
|
if (ext[i].hasOwnProperty(listeners)) { |
|
for (var ln in ext[i].listeners) { |
|
if (ext[i].listeners.hasOwnProperty(ln)) { |
|
listen(ln, ext[i].listeners[ln]); |
|
} |
|
} |
|
} |
|
} |
|
} |
|
/** |
|
* LEGACY_SUPPORT |
|
* @param {*} ext |
|
* @param {string} name |
|
*/ |
|
|
|
|
|
function legacyExtensionLoading(ext, name) { |
|
if (typeof ext === 'function') { |
|
ext = ext(new showdown.Converter()); |
|
} |
|
|
|
if (!showdown.helper.isArray(ext)) { |
|
ext = [ext]; |
|
} |
|
|
|
var valid = validate(ext, name); |
|
|
|
if (!valid.valid) { |
|
throw Error(valid.error); |
|
} |
|
|
|
for (var i = 0; i < ext.length; ++i) { |
|
switch (ext[i].type) { |
|
case 'lang': |
|
langExtensions.push(ext[i]); |
|
break; |
|
|
|
case 'output': |
|
outputModifiers.push(ext[i]); |
|
break; |
|
|
|
default: |
|
// should never reach here |
|
throw Error('Extension loader error: Type unrecognized!!!'); |
|
} |
|
} |
|
} |
|
/** |
|
* Listen to an event |
|
* @param {string} name |
|
* @param {function} callback |
|
*/ |
|
|
|
|
|
function listen(name, callback) { |
|
if (!showdown.helper.isString(name)) { |
|
throw Error('Invalid argument in converter.listen() method: name must be a string, but ' + typeof name + ' given'); |
|
} |
|
|
|
if (typeof callback !== 'function') { |
|
throw Error('Invalid argument in converter.listen() method: callback must be a function, but ' + typeof callback + ' given'); |
|
} |
|
|
|
if (!listeners.hasOwnProperty(name)) { |
|
listeners[name] = []; |
|
} |
|
|
|
listeners[name].push(callback); |
|
} |
|
|
|
function rTrimInputText(text) { |
|
var rsp = text.match(/^\s*/)[0].length, |
|
rgx = new RegExp('^\\s{0,' + rsp + '}', 'gm'); |
|
return text.replace(rgx, ''); |
|
} |
|
/** |
|
* Dispatch an event |
|
* @private |
|
* @param {string} evtName Event name |
|
* @param {string} text Text |
|
* @param {{}} options Converter Options |
|
* @param {{}} globals |
|
* @returns {string} |
|
*/ |
|
|
|
|
|
this._dispatch = function dispatch(evtName, text, options, globals) { |
|
if (listeners.hasOwnProperty(evtName)) { |
|
for (var ei = 0; ei < listeners[evtName].length; ++ei) { |
|
var nText = listeners[evtName][ei](evtName, text, this, options, globals); |
|
|
|
if (nText && typeof nText !== 'undefined') { |
|
text = nText; |
|
} |
|
} |
|
} |
|
|
|
return text; |
|
}; |
|
/** |
|
* Listen to an event |
|
* @param {string} name |
|
* @param {function} callback |
|
* @returns {showdown.Converter} |
|
*/ |
|
|
|
|
|
this.listen = function (name, callback) { |
|
listen(name, callback); |
|
return this; |
|
}; |
|
/** |
|
* Converts a markdown string into HTML |
|
* @param {string} text |
|
* @returns {*} |
|
*/ |
|
|
|
|
|
this.makeHtml = function (text) { |
|
//check if text is not falsy |
|
if (!text) { |
|
return text; |
|
} |
|
|
|
var globals = { |
|
gHtmlBlocks: [], |
|
gHtmlMdBlocks: [], |
|
gHtmlSpans: [], |
|
gUrls: {}, |
|
gTitles: {}, |
|
gDimensions: {}, |
|
gListLevel: 0, |
|
hashLinkCounts: {}, |
|
langExtensions: langExtensions, |
|
outputModifiers: outputModifiers, |
|
converter: this, |
|
ghCodeBlocks: [] |
|
}; // attacklab: Replace ~ with ~T |
|
// This lets us use tilde as an escape char to avoid md5 hashes |
|
// The choice of character is arbitrary; anything that isn't |
|
// magic in Markdown will work. |
|
|
|
text = text.replace(/~/g, '~T'); // attacklab: Replace $ with ~D |
|
// RegExp interprets $ as a special character |
|
// when it's in a replacement string |
|
|
|
text = text.replace(/\$/g, '~D'); // Standardize line endings |
|
|
|
text = text.replace(/\r\n/g, '\n'); // DOS to Unix |
|
|
|
text = text.replace(/\r/g, '\n'); // Mac to Unix |
|
|
|
if (options.smartIndentationFix) { |
|
text = rTrimInputText(text); |
|
} // Make sure text begins and ends with a couple of newlines: |
|
//text = '\n\n' + text + '\n\n'; |
|
|
|
|
|
text = text; // detab |
|
|
|
text = showdown.subParser('detab')(text, options, globals); // stripBlankLines |
|
|
|
text = showdown.subParser('stripBlankLines')(text, options, globals); //run languageExtensions |
|
|
|
showdown.helper.forEach(langExtensions, function (ext) { |
|
text = showdown.subParser('runExtension')(ext, text, options, globals); |
|
}); // run the sub parsers |
|
|
|
text = showdown.subParser('hashPreCodeTags')(text, options, globals); |
|
text = showdown.subParser('githubCodeBlocks')(text, options, globals); |
|
text = showdown.subParser('hashHTMLBlocks')(text, options, globals); |
|
text = showdown.subParser('hashHTMLSpans')(text, options, globals); |
|
text = showdown.subParser('stripLinkDefinitions')(text, options, globals); |
|
text = showdown.subParser('blockGamut')(text, options, globals); |
|
text = showdown.subParser('unhashHTMLSpans')(text, options, globals); |
|
text = showdown.subParser('unescapeSpecialChars')(text, options, globals); // attacklab: Restore dollar signs |
|
|
|
text = text.replace(/~D/g, '$$'); // attacklab: Restore tildes |
|
|
|
text = text.replace(/~T/g, '~'); // Run output modifiers |
|
|
|
showdown.helper.forEach(outputModifiers, function (ext) { |
|
text = showdown.subParser('runExtension')(ext, text, options, globals); |
|
}); |
|
return text; |
|
}; |
|
/** |
|
* Set an option of this Converter instance |
|
* @param {string} key |
|
* @param {*} value |
|
*/ |
|
|
|
|
|
this.setOption = function (key, value) { |
|
options[key] = value; |
|
}; |
|
/** |
|
* Get the option of this Converter instance |
|
* @param {string} key |
|
* @returns {*} |
|
*/ |
|
|
|
|
|
this.getOption = function (key) { |
|
return options[key]; |
|
}; |
|
/** |
|
* Get the options of this Converter instance |
|
* @returns {{}} |
|
*/ |
|
|
|
|
|
this.getOptions = function () { |
|
return options; |
|
}; |
|
/** |
|
* Add extension to THIS converter |
|
* @param {{}} extension |
|
* @param {string} [name=null] |
|
*/ |
|
|
|
|
|
this.addExtension = function (extension, name) { |
|
name = name || null; |
|
|
|
_parseExtension(extension, name); |
|
}; |
|
/** |
|
* Use a global registered extension with THIS converter |
|
* @param {string} extensionName Name of the previously registered extension |
|
*/ |
|
|
|
|
|
this.useExtension = function (extensionName) { |
|
_parseExtension(extensionName); |
|
}; |
|
/** |
|
* Set the flavor THIS converter should use |
|
* @param {string} name |
|
*/ |
|
|
|
|
|
this.setFlavor = function (name) { |
|
if (flavor.hasOwnProperty(name)) { |
|
var preset = flavor[name]; |
|
|
|
for (var option in preset) { |
|
if (preset.hasOwnProperty(option)) { |
|
options[option] = preset[option]; |
|
} |
|
} |
|
} |
|
}; |
|
/** |
|
* Remove an extension from THIS converter. |
|
* Note: This is a costly operation. It's better to initialize a new converter |
|
* and specify the extensions you wish to use |
|
* @param {Array} extension |
|
*/ |
|
|
|
|
|
this.removeExtension = function (extension) { |
|
if (!showdown.helper.isArray(extension)) { |
|
extension = [extension]; |
|
} |
|
|
|
for (var a = 0; a < extension.length; ++a) { |
|
var ext = extension[a]; |
|
|
|
for (var i = 0; i < langExtensions.length; ++i) { |
|
if (langExtensions[i] === ext) { |
|
langExtensions[i].splice(i, 1); |
|
} |
|
} |
|
|
|
for (var ii = 0; ii < outputModifiers.length; ++i) { |
|
if (outputModifiers[ii] === ext) { |
|
outputModifiers[ii].splice(i, 1); |
|
} |
|
} |
|
} |
|
}; |
|
/** |
|
* Get all extension of THIS converter |
|
* @returns {{language: Array, output: Array}} |
|
*/ |
|
|
|
|
|
this.getAllExtensions = function () { |
|
return { |
|
language: langExtensions, |
|
output: outputModifiers |
|
}; |
|
}; |
|
}; |
|
/** |
|
* Turn Markdown link shortcuts into XHTML <a> tags. |
|
*/ |
|
|
|
|
|
showdown.subParser('anchors', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('anchors.before', text, options, globals); |
|
|
|
var writeAnchorTag = function (wholeMatch, m1, m2, m3, m4, m5, m6, m7) { |
|
if (showdown.helper.isUndefined(m7)) { |
|
m7 = ''; |
|
} |
|
|
|
wholeMatch = m1; |
|
var linkText = m2, |
|
linkId = m3.toLowerCase(), |
|
url = m4, |
|
title = m7; |
|
|
|
if (!url) { |
|
if (!linkId) { |
|
// lower-case and turn embedded newlines into spaces |
|
linkId = linkText.toLowerCase().replace(/ ?\n/g, ' '); |
|
} |
|
|
|
url = '#' + linkId; |
|
|
|
if (!showdown.helper.isUndefined(globals.gUrls[linkId])) { |
|
url = globals.gUrls[linkId]; |
|
|
|
if (!showdown.helper.isUndefined(globals.gTitles[linkId])) { |
|
title = globals.gTitles[linkId]; |
|
} |
|
} else { |
|
if (wholeMatch.search(/\(\s*\)$/m) > -1) { |
|
// Special case for explicit empty url |
|
url = ''; |
|
} else { |
|
return wholeMatch; |
|
} |
|
} |
|
} |
|
|
|
url = showdown.helper.escapeCharacters(url, '*_', false); |
|
var result = '<a href="' + url + '"'; |
|
|
|
if (title !== '' && title !== null) { |
|
title = title.replace(/"/g, '"'); |
|
title = showdown.helper.escapeCharacters(title, '*_', false); |
|
result += ' title="' + title + '"'; |
|
} |
|
|
|
result += '>' + linkText + '</a>'; |
|
return result; |
|
}; // First, handle reference-style links: [link text] [id] |
|
|
|
/* |
|
text = text.replace(/ |
|
( // wrap whole match in $1 |
|
\[ |
|
( |
|
(?: |
|
\[[^\]]*\] // allow brackets nested one level |
|
| |
|
[^\[] // or anything else |
|
)* |
|
) |
|
\] |
|
[ ]? // one optional space |
|
(?:\n[ ]*)? // one optional newline followed by spaces |
|
\[ |
|
(.*?) // id = $3 |
|
\] |
|
)()()()() // pad remaining backreferences |
|
/g,_DoAnchors_callback); |
|
*/ |
|
|
|
|
|
text = text.replace(/(\[((?:\[[^\]]*]|[^\[\]])*)][ ]?(?:\n[ ]*)?\[(.*?)])()()()()/g, writeAnchorTag); // |
|
// Next, inline-style links: [link text](url "optional title") |
|
// |
|
|
|
/* |
|
text = text.replace(/ |
|
( // wrap whole match in $1 |
|
\[ |
|
( |
|
(?: |
|
\[[^\]]*\] // allow brackets nested one level |
|
| |
|
[^\[\]] // or anything else |
|
) |
|
) |
|
\] |
|
\( // literal paren |
|
[ \t]* |
|
() // no id, so leave $3 empty |
|
<?(.*?)>? // href = $4 |
|
[ \t]* |
|
( // $5 |
|
(['"]) // quote char = $6 |
|
(.*?) // Title = $7 |
|
\6 // matching quote |
|
[ \t]* // ignore any spaces/tabs between closing quote and ) |
|
)? // title is optional |
|
\) |
|
) |
|
/g,writeAnchorTag); |
|
*/ |
|
|
|
text = text.replace(/(\[((?:\[[^\]]*]|[^\[\]])*)]\([ \t]*()<?(.*?(?:\(.*?\).*?)?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g, writeAnchorTag); // |
|
// Last, handle reference-style shortcuts: [link text] |
|
// These must come last in case you've also got [link test][1] |
|
// or [link test](/foo) |
|
// |
|
|
|
/* |
|
text = text.replace(/ |
|
( // wrap whole match in $1 |
|
\[ |
|
([^\[\]]+) // link text = $2; can't contain '[' or ']' |
|
\] |
|
)()()()()() // pad rest of backreferences |
|
/g, writeAnchorTag); |
|
*/ |
|
|
|
text = text.replace(/(\[([^\[\]]+)])()()()()()/g, writeAnchorTag); |
|
text = globals.converter._dispatch('anchors.after', text, options, globals); |
|
return text; |
|
}); |
|
showdown.subParser('autoLinks', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('autoLinks.before', text, options, globals); |
|
var simpleURLRegex = /\b(((https?|ftp|dict):\/\/|www\.)[^'">\s]+\.[^'">\s]+)(?=\s|$)(?!["<>])/gi, |
|
delimUrlRegex = /<(((https?|ftp|dict):\/\/|www\.)[^'">\s]+)>/gi, |
|
simpleMailRegex = /(?:^|[ \n\t])([A-Za-z0-9!#$%&'*+-/=?^_`\{|}~\.]+@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)(?:$|[ \n\t])/gi, |
|
delimMailRegex = /<(?:mailto:)?([-.\w]+@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi; |
|
text = text.replace(delimUrlRegex, replaceLink); |
|
text = text.replace(delimMailRegex, replaceMail); // simpleURLRegex = /\b(((https?|ftp|dict):\/\/|www\.)[-.+~:?#@!$&'()*,;=[\]\w]+)\b/gi, |
|
// Email addresses: <address@domain.foo> |
|
|
|
if (options.simplifiedAutoLink) { |
|
text = text.replace(simpleURLRegex, replaceLink); |
|
text = text.replace(simpleMailRegex, replaceMail); |
|
} |
|
|
|
function replaceLink(wm, link) { |
|
var lnkTxt = link; |
|
|
|
if (/^www\./i.test(link)) { |
|
link = link.replace(/^www\./i, 'http://www.'); |
|
} |
|
|
|
return '<a href="' + link + '">' + lnkTxt + '</a>'; |
|
} |
|
|
|
function replaceMail(wholeMatch, m1) { |
|
var unescapedStr = showdown.subParser('unescapeSpecialChars')(m1); |
|
return showdown.subParser('encodeEmailAddress')(unescapedStr); |
|
} |
|
|
|
text = globals.converter._dispatch('autoLinks.after', text, options, globals); |
|
return text; |
|
}); |
|
/** |
|
* These are all the transformations that form block-level |
|
* tags like paragraphs, headers, and list items. |
|
*/ |
|
|
|
showdown.subParser('blockGamut', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('blockGamut.before', text, options, globals); // we parse blockquotes first so that we can have headings and hrs |
|
// inside blockquotes |
|
|
|
text = showdown.subParser('blockQuotes')(text, options, globals); |
|
text = showdown.subParser('headers')(text, options, globals); // Do Horizontal Rules: |
|
|
|
var key = showdown.subParser('hashBlock')('<hr />', options, globals); |
|
text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm, key); |
|
text = text.replace(/^[ ]{0,2}([ ]?\-[ ]?){3,}[ \t]*$/gm, key); |
|
text = text.replace(/^[ ]{0,2}([ ]?_[ ]?){3,}[ \t]*$/gm, key); |
|
text = showdown.subParser('lists')(text, options, globals); |
|
text = showdown.subParser('codeBlocks')(text, options, globals); |
|
text = showdown.subParser('tables')(text, options, globals); // We already ran _HashHTMLBlocks() before, in Markdown(), but that |
|
// was to escape raw HTML in the original Markdown source. This time, |
|
// we're escaping the markup we've just created, so that we don't wrap |
|
// <p> tags around block-level tags. |
|
|
|
text = showdown.subParser('hashHTMLBlocks')(text, options, globals); |
|
text = showdown.subParser('paragraphs')(text, options, globals); |
|
text = globals.converter._dispatch('blockGamut.after', text, options, globals); |
|
return text; |
|
}); |
|
showdown.subParser('blockQuotes', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('blockQuotes.before', text, options, globals); |
|
/* |
|
text = text.replace(/ |
|
( // Wrap whole match in $1 |
|
( |
|
^[ \t]*>[ \t]? // '>' at the start of a line |
|
.+\n // rest of the first line |
|
(.+\n)* // subsequent consecutive lines |
|
\n* // blanks |
|
)+ |
|
) |
|
/gm, function(){...}); |
|
*/ |
|
|
|
text = text.replace(/((^[ \t]{0,3}>[ \t]?.+\n(.+\n)*\n*)+)/gm, function (wholeMatch, m1) { |
|
var bq = m1; // attacklab: hack around Konqueror 3.5.4 bug: |
|
// "----------bug".replace(/^-/g,"") == "bug" |
|
|
|
bq = bq.replace(/^[ \t]*>[ \t]?/gm, '~0'); // trim one level of quoting |
|
// attacklab: clean up hack |
|
|
|
bq = bq.replace(/~0/g, ''); |
|
bq = bq.replace(/^[ \t]+$/gm, ''); // trim whitespace-only lines |
|
|
|
bq = showdown.subParser('githubCodeBlocks')(bq, options, globals); |
|
bq = showdown.subParser('blockGamut')(bq, options, globals); // recurse |
|
|
|
bq = bq.replace(/(^|\n)/g, '$1 '); // These leading spaces screw with <pre> content, so we need to fix that: |
|
|
|
bq = bq.replace(/(\s*<pre>[^\r]+?<\/pre>)/gm, function (wholeMatch, m1) { |
|
var pre = m1; // attacklab: hack around Konqueror 3.5.4 bug: |
|
|
|
pre = pre.replace(/^ /mg, '~0'); |
|
pre = pre.replace(/~0/g, ''); |
|
return pre; |
|
}); |
|
return showdown.subParser('hashBlock')('<blockquote>\n' + bq + '\n</blockquote>', options, globals); |
|
}); |
|
text = globals.converter._dispatch('blockQuotes.after', text, options, globals); |
|
return text; |
|
}); |
|
/** |
|
* Process Markdown `<pre><code>` blocks. |
|
*/ |
|
|
|
showdown.subParser('codeBlocks', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('codeBlocks.before', text, options, globals); |
|
/* |
|
text = text.replace(text, |
|
/(?:\n\n|^) |
|
( // $1 = the code block -- one or more lines, starting with a space/tab |
|
(?: |
|
(?:[ ]{4}|\t) // Lines must start with a tab or a tab-width of spaces - attacklab: g_tab_width |
|
.*\n+ |
|
)+ |
|
) |
|
(\n*[ ]{0,3}[^ \t\n]|(?=~0)) // attacklab: g_tab_width |
|
/g,function(){...}); |
|
*/ |
|
// attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug |
|
|
|
text += '~0'; |
|
var pattern = /(?:\n\n|^)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=~0))/g; |
|
text = text.replace(pattern, function (wholeMatch, m1, m2) { |
|
var codeblock = m1, |
|
nextChar = m2, |
|
end = '\n'; |
|
codeblock = showdown.subParser('outdent')(codeblock); |
|
codeblock = showdown.subParser('encodeCode')(codeblock); |
|
codeblock = showdown.subParser('detab')(codeblock); |
|
codeblock = codeblock.replace(/^\n+/g, ''); // trim leading newlines |
|
|
|
codeblock = codeblock.replace(/\n+$/g, ''); // trim trailing newlines |
|
|
|
if (options.omitExtraWLInCodeBlocks) { |
|
end = ''; |
|
} |
|
|
|
codeblock = '<pre><code>' + codeblock + end + '</code></pre>'; |
|
return showdown.subParser('hashBlock')(codeblock, options, globals) + nextChar; |
|
}); // attacklab: strip sentinel |
|
|
|
text = text.replace(/~0/, ''); |
|
text = globals.converter._dispatch('codeBlocks.after', text, options, globals); |
|
return text; |
|
}); |
|
/** |
|
* |
|
* * Backtick quotes are used for <code></code> spans. |
|
* |
|
* * You can use multiple backticks as the delimiters if you want to |
|
* include literal backticks in the code span. So, this input: |
|
* |
|
* Just type ``foo `bar` baz`` at the prompt. |
|
* |
|
* Will translate to: |
|
* |
|
* <p>Just type <code>foo `bar` baz</code> at the prompt.</p> |
|
* |
|
* There's no arbitrary limit to the number of backticks you |
|
* can use as delimters. If you need three consecutive backticks |
|
* in your code, use four for delimiters, etc. |
|
* |
|
* * You can use spaces to get literal backticks at the edges: |
|
* |
|
* ... type `` `bar` `` ... |
|
* |
|
* Turns to: |
|
* |
|
* ... type <code>`bar`</code> ... |
|
*/ |
|
|
|
showdown.subParser('codeSpans', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('codeSpans.before', text, options, globals); |
|
/* |
|
text = text.replace(/ |
|
(^|[^\\]) // Character before opening ` can't be a backslash |
|
(`+) // $2 = Opening run of ` |
|
( // $3 = The code block |
|
[^\r]*? |
|
[^`] // attacklab: work around lack of lookbehind |
|
) |
|
\2 // Matching closer |
|
(?!`) |
|
/gm, function(){...}); |
|
*/ |
|
|
|
if (typeof text === 'undefined') { |
|
text = ''; |
|
} |
|
|
|
text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm, function (wholeMatch, m1, m2, m3) { |
|
var c = m3; |
|
c = c.replace(/^([ \t]*)/g, ''); // leading whitespace |
|
|
|
c = c.replace(/[ \t]*$/g, ''); // trailing whitespace |
|
|
|
c = showdown.subParser('encodeCode')(c); |
|
return m1 + '<code>' + c + '</code>'; |
|
}); |
|
text = globals.converter._dispatch('codeSpans.after', text, options, globals); |
|
return text; |
|
}); |
|
/** |
|
* Convert all tabs to spaces |
|
*/ |
|
|
|
showdown.subParser('detab', function (text) { |
|
'use strict'; // expand first n-1 tabs |
|
|
|
text = text.replace(/\t(?=\t)/g, ' '); // g_tab_width |
|
// replace the nth with two sentinels |
|
|
|
text = text.replace(/\t/g, '~A~B'); // use the sentinel to anchor our regex so it doesn't explode |
|
|
|
text = text.replace(/~B(.+?)~A/g, function (wholeMatch, m1) { |
|
var leadingText = m1, |
|
numSpaces = 4 - leadingText.length % 4; // g_tab_width |
|
// there *must* be a better way to do this: |
|
|
|
for (var i = 0; i < numSpaces; i++) { |
|
leadingText += ' '; |
|
} |
|
|
|
return leadingText; |
|
}); // clean up sentinels |
|
|
|
text = text.replace(/~A/g, ' '); // g_tab_width |
|
|
|
text = text.replace(/~B/g, ''); |
|
return text; |
|
}); |
|
/** |
|
* Smart processing for ampersands and angle brackets that need to be encoded. |
|
*/ |
|
|
|
showdown.subParser('encodeAmpsAndAngles', function (text) { |
|
'use strict'; // Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin: |
|
// http://bumppo.net/projects/amputator/ |
|
|
|
text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g, '&'); // Encode naked <'s |
|
|
|
text = text.replace(/<(?![a-z\/?\$!])/gi, '<'); |
|
return text; |
|
}); |
|
/** |
|
* Returns the string, with after processing the following backslash escape sequences. |
|
* |
|
* attacklab: The polite way to do this is with the new escapeCharacters() function: |
|
* |
|
* text = escapeCharacters(text,"\\",true); |
|
* text = escapeCharacters(text,"`*_{}[]()>#+-.!",true); |
|
* |
|
* ...but we're sidestepping its use of the (slow) RegExp constructor |
|
* as an optimization for Firefox. This function gets called a LOT. |
|
*/ |
|
|
|
showdown.subParser('encodeBackslashEscapes', function (text) { |
|
'use strict'; |
|
|
|
text = text.replace(/\\(\\)/g, showdown.helper.escapeCharactersCallback); |
|
text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g, showdown.helper.escapeCharactersCallback); |
|
return text; |
|
}); |
|
/** |
|
* Encode/escape certain characters inside Markdown code runs. |
|
* The point is that in code, these characters are literals, |
|
* and lose their special Markdown meanings. |
|
*/ |
|
|
|
showdown.subParser('encodeCode', function (text) { |
|
'use strict'; // Encode all ampersands; HTML entities are not |
|
// entities within a Markdown code span. |
|
|
|
text = text.replace(/&/g, '&'); // Do the angle bracket song and dance: |
|
|
|
text = text.replace(/</g, '<'); |
|
text = text.replace(/>/g, '>'); // Now, escape characters that are magic in Markdown: |
|
|
|
text = showdown.helper.escapeCharacters(text, '*_{}[]\\', false); // jj the line above breaks this: |
|
//--- |
|
//* Item |
|
// 1. Subitem |
|
// special char: * |
|
// --- |
|
|
|
return text; |
|
}); |
|
/** |
|
* Input: an email address, e.g. "foo@example.com" |
|
* |
|
* Output: the email address as a mailto link, with each character |
|
* of the address encoded as either a decimal or hex entity, in |
|
* the hopes of foiling most address harvesting spam bots. E.g.: |
|
* |
|
* <a href="mailto:foo@e |
|
* xample.com">foo |
|
* @example.com</a> |
|
* |
|
* Based on a filter by Matthew Wickline, posted to the BBEdit-Talk |
|
* mailing list: <http://tinyurl.com/yu7ue> |
|
* |
|
*/ |
|
|
|
showdown.subParser('encodeEmailAddress', function (addr) { |
|
'use strict'; |
|
|
|
var encode = [function (ch) { |
|
return '&#' + ch.charCodeAt(0) + ';'; |
|
}, function (ch) { |
|
return '&#x' + ch.charCodeAt(0).toString(16) + ';'; |
|
}, function (ch) { |
|
return ch; |
|
}]; |
|
addr = 'mailto:' + addr; |
|
addr = addr.replace(/./g, function (ch) { |
|
if (ch === '@') { |
|
// this *must* be encoded. I insist. |
|
ch = encode[Math.floor(Math.random() * 2)](ch); |
|
} else if (ch !== ':') { |
|
// leave ':' alone (to spot mailto: later) |
|
var r = Math.random(); // roughly 10% raw, 45% hex, 45% dec |
|
|
|
ch = r > 0.9 ? encode[2](ch) : r > 0.45 ? encode[1](ch) : encode[0](ch); |
|
} |
|
|
|
return ch; |
|
}); |
|
addr = '<a href="' + addr + '">' + addr + '</a>'; |
|
addr = addr.replace(/">.+:/g, '">'); // strip the mailto: from the visible part |
|
|
|
return addr; |
|
}); |
|
/** |
|
* Within tags -- meaning between < and > -- encode [\ ` * _] so they |
|
* don't conflict with their use in Markdown for code, italics and strong. |
|
*/ |
|
|
|
showdown.subParser('escapeSpecialCharsWithinTagAttributes', function (text) { |
|
'use strict'; // Build a regex to find HTML tags and comments. See Friedl's |
|
// "Mastering Regular Expressions", 2nd Ed., pp. 200-201. |
|
|
|
var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|<!(--.*?--\s*)+>)/gi; |
|
text = text.replace(regex, function (wholeMatch) { |
|
var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g, '$1`'); |
|
tag = showdown.helper.escapeCharacters(tag, '\\`*_', false); |
|
return tag; |
|
}); |
|
return text; |
|
}); |
|
/** |
|
* Handle github codeblocks prior to running HashHTML so that |
|
* HTML contained within the codeblock gets escaped properly |
|
* Example: |
|
* ```ruby |
|
* def hello_world(x) |
|
* puts "Hello, #{x}" |
|
* end |
|
* ``` |
|
*/ |
|
|
|
showdown.subParser('githubCodeBlocks', function (text, options, globals) { |
|
'use strict'; // early exit if option is not enabled |
|
|
|
if (!options.ghCodeBlocks) { |
|
return text; |
|
} |
|
|
|
text = globals.converter._dispatch('githubCodeBlocks.before', text, options, globals); |
|
text += '~0'; |
|
text = text.replace(/(?:^|\n)```(.*)\n([\s\S]*?)\n```/g, function (wholeMatch, language, codeblock) { |
|
var end = options.omitExtraWLInCodeBlocks ? '' : '\n'; // First parse the github code block |
|
|
|
codeblock = showdown.subParser('encodeCode')(codeblock); |
|
codeblock = showdown.subParser('detab')(codeblock); |
|
codeblock = codeblock.replace(/^\n+/g, ''); // trim leading newlines |
|
|
|
codeblock = codeblock.replace(/\n+$/g, ''); // trim trailing whitespace |
|
|
|
codeblock = '<pre><code' + (language ? ' class="' + language + ' language-' + language + '"' : '') + '>' + codeblock + end + '</code></pre>'; |
|
codeblock = showdown.subParser('hashBlock')(codeblock, options, globals); // Since GHCodeblocks can be false positives, we need to |
|
// store the primitive text and the parsed text in a global var, |
|
// and then return a token |
|
|
|
return '\n\n~G' + (globals.ghCodeBlocks.push({ |
|
text: wholeMatch, |
|
codeblock: codeblock |
|
}) - 1) + 'G\n\n'; |
|
}); // attacklab: strip sentinel |
|
|
|
text = text.replace(/~0/, ''); |
|
return globals.converter._dispatch('githubCodeBlocks.after', text, options, globals); |
|
}); |
|
showdown.subParser('hashBlock', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = text.replace(/(^\n+|\n+$)/g, ''); |
|
return '\n\n~K' + (globals.gHtmlBlocks.push(text) - 1) + 'K\n\n'; |
|
}); |
|
showdown.subParser('hashElement', function (text, options, globals) { |
|
'use strict'; |
|
|
|
return function (wholeMatch, m1) { |
|
var blockText = m1; // Undo double lines |
|
|
|
blockText = blockText.replace(/\n\n/g, '\n'); |
|
blockText = blockText.replace(/^\n/, ''); // strip trailing blank lines |
|
|
|
blockText = blockText.replace(/\n+$/g, ''); // Replace the element text with a marker ("~KxK" where x is its key) |
|
|
|
blockText = '\n\n~K' + (globals.gHtmlBlocks.push(blockText) - 1) + 'K\n\n'; |
|
return blockText; |
|
}; |
|
}); |
|
showdown.subParser('hashHTMLBlocks', function (text, options, globals) { |
|
'use strict'; |
|
|
|
var blockTags = ['pre', 'div', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'blockquote', 'table', 'dl', 'ol', 'ul', 'script', 'noscript', 'form', 'fieldset', 'iframe', 'math', 'style', 'section', 'header', 'footer', 'nav', 'article', 'aside', 'address', 'audio', 'canvas', 'figure', 'hgroup', 'output', 'video', 'p'], |
|
repFunc = function (wholeMatch, match, left, right) { |
|
var txt = wholeMatch; // check if this html element is marked as markdown |
|
// if so, it's contents should be parsed as markdown |
|
|
|
if (left.search(/\bmarkdown\b/) !== -1) { |
|
txt = left + globals.converter.makeHtml(match) + right; |
|
} |
|
|
|
return '\n\n~K' + (globals.gHtmlBlocks.push(txt) - 1) + 'K\n\n'; |
|
}; |
|
|
|
for (var i = 0; i < blockTags.length; ++i) { |
|
text = showdown.helper.replaceRecursiveRegExp(text, repFunc, '^(?: |\\t){0,3}<' + blockTags[i] + '\\b[^>]*>', '</' + blockTags[i] + '>', 'gim'); |
|
} // HR SPECIAL CASE |
|
|
|
|
|
text = text.replace(/(\n[ ]{0,3}(<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g, showdown.subParser('hashElement')(text, options, globals)); // Special case for standalone HTML comments: |
|
|
|
text = text.replace(/(<!--[\s\S]*?-->)/g, showdown.subParser('hashElement')(text, options, globals)); // PHP and ASP-style processor instructions (<?...?> and <%...%>) |
|
|
|
text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g, showdown.subParser('hashElement')(text, options, globals)); |
|
return text; |
|
}); |
|
/** |
|
* Hash span elements that should not be parsed as markdown |
|
*/ |
|
|
|
showdown.subParser('hashHTMLSpans', function (text, config, globals) { |
|
'use strict'; |
|
|
|
var matches = showdown.helper.matchRecursiveRegExp(text, '<code\\b[^>]*>', '</code>', 'gi'); |
|
|
|
for (var i = 0; i < matches.length; ++i) { |
|
text = text.replace(matches[i][0], '~L' + (globals.gHtmlSpans.push(matches[i][0]) - 1) + 'L'); |
|
} |
|
|
|
return text; |
|
}); |
|
/** |
|
* Unhash HTML spans |
|
*/ |
|
|
|
showdown.subParser('unhashHTMLSpans', function (text, config, globals) { |
|
'use strict'; |
|
|
|
for (var i = 0; i < globals.gHtmlSpans.length; ++i) { |
|
text = text.replace('~L' + i + 'L', globals.gHtmlSpans[i]); |
|
} |
|
|
|
return text; |
|
}); |
|
/** |
|
* Hash span elements that should not be parsed as markdown |
|
*/ |
|
|
|
showdown.subParser('hashPreCodeTags', function (text, config, globals) { |
|
'use strict'; |
|
|
|
var repFunc = function (wholeMatch, match, left, right) { |
|
// encode html entities |
|
var codeblock = left + showdown.subParser('encodeCode')(match) + right; |
|
return '\n\n~G' + (globals.ghCodeBlocks.push({ |
|
text: wholeMatch, |
|
codeblock: codeblock |
|
}) - 1) + 'G\n\n'; |
|
}; |
|
|
|
text = showdown.helper.replaceRecursiveRegExp(text, repFunc, '^(?: |\\t){0,3}<pre\\b[^>]*>\\s*<code\\b[^>]*>', '^(?: |\\t){0,3}</code>\\s*</pre>', 'gim'); |
|
return text; |
|
}); |
|
showdown.subParser('headers', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('headers.before', text, options, globals); |
|
var prefixHeader = options.prefixHeaderId, |
|
headerLevelStart = isNaN(parseInt(options.headerLevelStart)) ? 1 : parseInt(options.headerLevelStart), |
|
// Set text-style headers: |
|
// Header 1 |
|
// ======== |
|
// |
|
// Header 2 |
|
// -------- |
|
// |
|
setextRegexH1 = options.smoothLivePreview ? /^(.+)[ \t]*\n={2,}[ \t]*\n+/gm : /^(.+)[ \t]*\n=+[ \t]*\n+/gm, |
|
setextRegexH2 = options.smoothLivePreview ? /^(.+)[ \t]*\n-{2,}[ \t]*\n+/gm : /^(.+)[ \t]*\n-+[ \t]*\n+/gm; |
|
text = text.replace(setextRegexH1, function (wholeMatch, m1) { |
|
var spanGamut = showdown.subParser('spanGamut')(m1, options, globals), |
|
hID = options.noHeaderId ? '' : ' id="' + headerId(m1) + '"', |
|
hLevel = headerLevelStart, |
|
hashBlock = '<h' + hLevel + hID + '>' + spanGamut + '</h' + hLevel + '>'; |
|
return showdown.subParser('hashBlock')(hashBlock, options, globals); |
|
}); |
|
text = text.replace(setextRegexH2, function (matchFound, m1) { |
|
var spanGamut = showdown.subParser('spanGamut')(m1, options, globals), |
|
hID = options.noHeaderId ? '' : ' id="' + headerId(m1) + '"', |
|
hLevel = headerLevelStart + 1, |
|
hashBlock = '<h' + hLevel + hID + '>' + spanGamut + '</h' + hLevel + '>'; |
|
return showdown.subParser('hashBlock')(hashBlock, options, globals); |
|
}); // atx-style headers: |
|
// # Header 1 |
|
// ## Header 2 |
|
// ## Header 2 with closing hashes ## |
|
// ... |
|
// ###### Header 6 |
|
// |
|
|
|
text = text.replace(/^(#{1,6})[ \t]*(.+?)[ \t]*#*\n+/gm, function (wholeMatch, m1, m2) { |
|
var span = showdown.subParser('spanGamut')(m2, options, globals), |
|
hID = options.noHeaderId ? '' : ' id="' + headerId(m2) + '"', |
|
hLevel = headerLevelStart - 1 + m1.length, |
|
header = '<h' + hLevel + hID + '>' + span + '</h' + hLevel + '>'; |
|
return showdown.subParser('hashBlock')(header, options, globals); |
|
}); |
|
|
|
function headerId(m) { |
|
var title, |
|
escapedId = m.replace(/[^\w]/g, '').toLowerCase(); |
|
|
|
if (globals.hashLinkCounts[escapedId]) { |
|
title = escapedId + '-' + globals.hashLinkCounts[escapedId]++; |
|
} else { |
|
title = escapedId; |
|
globals.hashLinkCounts[escapedId] = 1; |
|
} // Prefix id to prevent causing inadvertent pre-existing style matches. |
|
|
|
|
|
if (prefixHeader === true) { |
|
prefixHeader = 'section'; |
|
} |
|
|
|
if (showdown.helper.isString(prefixHeader)) { |
|
return prefixHeader + title; |
|
} |
|
|
|
return title; |
|
} |
|
|
|
text = globals.converter._dispatch('headers.after', text, options, globals); |
|
return text; |
|
}); |
|
/** |
|
* Turn Markdown image shortcuts into <img> tags. |
|
*/ |
|
|
|
showdown.subParser('images', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('images.before', text, options, globals); |
|
var inlineRegExp = /!\[(.*?)]\s?\([ \t]*()<?(\S+?)>?(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*(?:(['"])(.*?)\6[ \t]*)?\)/g, |
|
referenceRegExp = /!\[([^\]]*?)] ?(?:\n *)?\[(.*?)]()()()()()/g; |
|
|
|
function writeImageTag(wholeMatch, altText, linkId, url, width, height, m5, title) { |
|
var gUrls = globals.gUrls, |
|
gTitles = globals.gTitles, |
|
gDims = globals.gDimensions; |
|
linkId = linkId.toLowerCase(); |
|
|
|
if (!title) { |
|
title = ''; |
|
} |
|
|
|
if (url === '' || url === null) { |
|
if (linkId === '' || linkId === null) { |
|
// lower-case and turn embedded newlines into spaces |
|
linkId = altText.toLowerCase().replace(/ ?\n/g, ' '); |
|
} |
|
|
|
url = '#' + linkId; |
|
|
|
if (!showdown.helper.isUndefined(gUrls[linkId])) { |
|
url = gUrls[linkId]; |
|
|
|
if (!showdown.helper.isUndefined(gTitles[linkId])) { |
|
title = gTitles[linkId]; |
|
} |
|
|
|
if (!showdown.helper.isUndefined(gDims[linkId])) { |
|
width = gDims[linkId].width; |
|
height = gDims[linkId].height; |
|
} |
|
} else { |
|
return wholeMatch; |
|
} |
|
} |
|
|
|
altText = altText.replace(/"/g, '"'); |
|
altText = showdown.helper.escapeCharacters(altText, '*_', false); |
|
url = showdown.helper.escapeCharacters(url, '*_', false); |
|
var result = '<img src="' + url + '" alt="' + altText + '"'; |
|
|
|
if (title) { |
|
title = title.replace(/"/g, '"'); |
|
title = showdown.helper.escapeCharacters(title, '*_', false); |
|
result += ' title="' + title + '"'; |
|
} |
|
|
|
if (width && height) { |
|
width = width === '*' ? 'auto' : width; |
|
height = height === '*' ? 'auto' : height; |
|
result += ' width="' + width + '"'; |
|
result += ' height="' + height + '"'; |
|
} |
|
|
|
result += ' />'; |
|
return result; |
|
} // First, handle reference-style labeled images: ![alt text][id] |
|
|
|
|
|
text = text.replace(referenceRegExp, writeImageTag); // Next, handle inline images:  |
|
|
|
text = text.replace(inlineRegExp, writeImageTag); |
|
text = globals.converter._dispatch('images.after', text, options, globals); |
|
return text; |
|
}); |
|
showdown.subParser('italicsAndBold', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('italicsAndBold.before', text, options, globals); |
|
|
|
if (options.literalMidWordUnderscores) { |
|
//underscores |
|
// Since we are consuming a \s character, we need to add it |
|
text = text.replace(/(^|\s|>|\b)__(?=\S)([\s\S]+?)__(?=\b|<|\s|$)/gm, '$1<strong>$2</strong>'); |
|
text = text.replace(/(^|\s|>|\b)_(?=\S)([\s\S]+?)_(?=\b|<|\s|$)/gm, '$1<em>$2</em>'); //asterisks |
|
|
|
text = text.replace(/(\*\*)(?=\S)([^\r]*?\S[*]*)\1/g, '<strong>$2</strong>'); |
|
text = text.replace(/(\*)(?=\S)([^\r]*?\S)\1/g, '<em>$2</em>'); |
|
} else { |
|
// <strong> must go first: |
|
text = text.replace(/(\*\*|__)(?=\S)([^\r]*?\S[*_]*)\1/g, '<strong>$2</strong>'); |
|
text = text.replace(/(\*|_)(?=\S)([^\r]*?\S)\1/g, '<em>$2</em>'); |
|
} |
|
|
|
text = globals.converter._dispatch('italicsAndBold.after', text, options, globals); |
|
return text; |
|
}); |
|
/** |
|
* Form HTML ordered (numbered) and unordered (bulleted) lists. |
|
*/ |
|
|
|
showdown.subParser('lists', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('lists.before', text, options, globals); |
|
/** |
|
* Process the contents of a single ordered or unordered list, splitting it |
|
* into individual list items. |
|
* @param {string} listStr |
|
* @param {boolean} trimTrailing |
|
* @returns {string} |
|
*/ |
|
|
|
function processListItems(listStr, trimTrailing) { |
|
// The $g_list_level global keeps track of when we're inside a list. |
|
// Each time we enter a list, we increment it; when we leave a list, |
|
// we decrement. If it's zero, we're not in a list anymore. |
|
// |
|
// We do this because when we're not inside a list, we want to treat |
|
// something like this: |
|
// |
|
// I recommend upgrading to version |
|
// 8. Oops, now this line is treated |
|
// as a sub-list. |
|
// |
|
// As a single paragraph, despite the fact that the second line starts |
|
// with a digit-period-space sequence. |
|
// |
|
// Whereas when we're inside a list (or sub-list), that line will be |
|
// treated as the start of a sub-list. What a kludge, huh? This is |
|
// an aspect of Markdown's syntax that's hard to parse perfectly |
|
// without resorting to mind-reading. Perhaps the solution is to |
|
// change the syntax rules such that sub-lists must start with a |
|
// starting cardinal number; e.g. "1." or "a.". |
|
globals.gListLevel++; // trim trailing blank lines: |
|
|
|
listStr = listStr.replace(/\n{2,}$/, '\n'); // attacklab: add sentinel to emulate \z |
|
|
|
listStr += '~0'; |
|
var rgx = /(\n)?(^[ \t]*)([*+-]|\d+[.])[ \t]+((\[(x|X| )?])?[ \t]*[^\r]+?(\n{1,2}))(?=\n*(~0|\2([*+-]|\d+[.])[ \t]+))/gm, |
|
isParagraphed = /\n[ \t]*\n(?!~0)/.test(listStr); |
|
listStr = listStr.replace(rgx, function (wholeMatch, m1, m2, m3, m4, taskbtn, checked) { |
|
checked = checked && checked.trim() !== ''; |
|
var item = showdown.subParser('outdent')(m4, options, globals), |
|
bulletStyle = ''; // Support for github tasklists |
|
|
|
if (taskbtn && options.tasklists) { |
|
bulletStyle = ' class="task-list-item" style="list-style-type: none;"'; |
|
item = item.replace(/^[ \t]*\[(x|X| )?]/m, function () { |
|
var otp = '<input type="checkbox" disabled style="margin: 0px 0.35em 0.25em -1.6em; vertical-align: middle;"'; |
|
|
|
if (checked) { |
|
otp += ' checked'; |
|
} |
|
|
|
otp += '>'; |
|
return otp; |
|
}); |
|
} // m1 - Leading line or |
|
// Has a double return (multi paragraph) or |
|
// Has sublist |
|
|
|
|
|
if (m1 || item.search(/\n{2,}/) > -1) { |
|
item = showdown.subParser('githubCodeBlocks')(item, options, globals); |
|
item = showdown.subParser('blockGamut')(item, options, globals); |
|
} else { |
|
// Recursion for sub-lists: |
|
item = showdown.subParser('lists')(item, options, globals); |
|
item = item.replace(/\n$/, ''); // chomp(item) |
|
|
|
if (isParagraphed) { |
|
item = showdown.subParser('paragraphs')(item, options, globals); |
|
} else { |
|
item = showdown.subParser('spanGamut')(item, options, globals); |
|
} |
|
} |
|
|
|
item = '\n<li' + bulletStyle + '>' + item + '</li>\n'; |
|
return item; |
|
}); // attacklab: strip sentinel |
|
|
|
listStr = listStr.replace(/~0/g, ''); |
|
globals.gListLevel--; |
|
|
|
if (trimTrailing) { |
|
listStr = listStr.replace(/\s+$/, ''); |
|
} |
|
|
|
return listStr; |
|
} |
|
/** |
|
* Check and parse consecutive lists (better fix for issue #142) |
|
* @param {string} list |
|
* @param {string} listType |
|
* @param {boolean} trimTrailing |
|
* @returns {string} |
|
*/ |
|
|
|
|
|
function parseConsecutiveLists(list, listType, trimTrailing) { |
|
// check if we caught 2 or more consecutive lists by mistake |
|
// we use the counterRgx, meaning if listType is UL we look for UL and vice versa |
|
var counterRxg = listType === 'ul' ? /^ {0,2}\d+\.[ \t]/gm : /^ {0,2}[*+-][ \t]/gm, |
|
subLists = [], |
|
result = ''; |
|
|
|
if (list.search(counterRxg) !== -1) { |
|
(function parseCL(txt) { |
|
var pos = txt.search(counterRxg); |
|
|
|
if (pos !== -1) { |
|
// slice |
|
result += '\n\n<' + listType + '>' + processListItems(txt.slice(0, pos), !!trimTrailing) + '</' + listType + '>\n\n'; // invert counterType and listType |
|
|
|
listType = listType === 'ul' ? 'ol' : 'ul'; |
|
counterRxg = listType === 'ul' ? /^ {0,2}\d+\.[ \t]/gm : /^ {0,2}[*+-][ \t]/gm; //recurse |
|
|
|
parseCL(txt.slice(pos)); |
|
} else { |
|
result += '\n\n<' + listType + '>' + processListItems(txt, !!trimTrailing) + '</' + listType + '>\n\n'; |
|
} |
|
})(list); |
|
|
|
for (var i = 0; i < subLists.length; ++i) {} |
|
} else { |
|
result = '\n\n<' + listType + '>' + processListItems(list, !!trimTrailing) + '</' + listType + '>\n\n'; |
|
} |
|
|
|
return result; |
|
} // attacklab: add sentinel to hack around khtml/safari bug: |
|
// http://bugs.webkit.org/show_bug.cgi?id=11231 |
|
|
|
|
|
text += '~0'; // Re-usable pattern to match any entire ul or ol list: |
|
|
|
var wholeList = /^(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm; |
|
|
|
if (globals.gListLevel) { |
|
text = text.replace(wholeList, function (wholeMatch, list, m2) { |
|
var listType = m2.search(/[*+-]/g) > -1 ? 'ul' : 'ol'; |
|
return parseConsecutiveLists(list, listType, true); |
|
}); |
|
} else { |
|
wholeList = /(\n\n|^\n?)(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm; //wholeList = /(\n\n|^\n?)( {0,3}([*+-]|\d+\.)[ \t]+[\s\S]+?)(?=(~0)|(\n\n(?!\t| {2,}| {0,3}([*+-]|\d+\.)[ \t])))/g; |
|
|
|
text = text.replace(wholeList, function (wholeMatch, m1, list, m3) { |
|
var listType = m3.search(/[*+-]/g) > -1 ? 'ul' : 'ol'; |
|
return parseConsecutiveLists(list, listType); |
|
}); |
|
} // attacklab: strip sentinel |
|
|
|
|
|
text = text.replace(/~0/, ''); |
|
text = globals.converter._dispatch('lists.after', text, options, globals); |
|
return text; |
|
}); |
|
/** |
|
* Remove one level of line-leading tabs or spaces |
|
*/ |
|
|
|
showdown.subParser('outdent', function (text) { |
|
'use strict'; // attacklab: hack around Konqueror 3.5.4 bug: |
|
// "----------bug".replace(/^-/g,"") == "bug" |
|
|
|
text = text.replace(/^(\t|[ ]{1,4})/gm, '~0'); // attacklab: g_tab_width |
|
// attacklab: clean up hack |
|
|
|
text = text.replace(/~0/g, ''); |
|
return text; |
|
}); |
|
/** |
|
* |
|
*/ |
|
|
|
showdown.subParser('paragraphs', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('paragraphs.before', text, options, globals); // Strip leading and trailing lines: |
|
|
|
text = text.replace(/^\n+/g, ''); |
|
text = text.replace(/\n+$/g, ''); |
|
var grafs = text.split(/\n{2,}/g), |
|
grafsOut = [], |
|
end = grafs.length; // Wrap <p> tags |
|
|
|
for (var i = 0; i < end; i++) { |
|
var str = grafs[i]; // if this is an HTML marker, copy it |
|
|
|
if (str.search(/~(K|G)(\d+)\1/g) >= 0) { |
|
grafsOut.push(str); |
|
} else { |
|
str = showdown.subParser('spanGamut')(str, options, globals); |
|
str = str.replace(/^([ \t]*)/g, '<p>'); |
|
str += '</p>'; |
|
grafsOut.push(str); |
|
} |
|
} |
|
/** Unhashify HTML blocks */ |
|
|
|
|
|
end = grafsOut.length; |
|
|
|
for (i = 0; i < end; i++) { |
|
var blockText = '', |
|
grafsOutIt = grafsOut[i], |
|
codeFlag = false; // if this is a marker for an html block... |
|
|
|
while (grafsOutIt.search(/~(K|G)(\d+)\1/) >= 0) { |
|
var delim = RegExp.$1, |
|
num = RegExp.$2; |
|
|
|
if (delim === 'K') { |
|
blockText = globals.gHtmlBlocks[num]; |
|
} else { |
|
// we need to check if ghBlock is a false positive |
|
if (codeFlag) { |
|
// use encoded version of all text |
|
blockText = showdown.subParser('encodeCode')(globals.ghCodeBlocks[num].text); |
|
} else { |
|
blockText = globals.ghCodeBlocks[num].codeblock; |
|
} |
|
} |
|
|
|
blockText = blockText.replace(/\$/g, '$$$$'); // Escape any dollar signs |
|
|
|
grafsOutIt = grafsOutIt.replace(/(\n\n)?~(K|G)\d+\2(\n\n)?/, blockText); // Check if grafsOutIt is a pre->code |
|
|
|
if (/^<pre\b[^>]*>\s*<code\b[^>]*>/.test(grafsOutIt)) { |
|
codeFlag = true; |
|
} |
|
} |
|
|
|
grafsOut[i] = grafsOutIt; |
|
} |
|
|
|
text = grafsOut.join('\n\n'); // Strip leading and trailing lines: |
|
|
|
text = text.replace(/^\n+/g, ''); |
|
text = text.replace(/\n+$/g, ''); |
|
return globals.converter._dispatch('paragraphs.after', text, options, globals); |
|
}); |
|
/** |
|
* Run extension |
|
*/ |
|
|
|
showdown.subParser('runExtension', function (ext, text, options, globals) { |
|
'use strict'; |
|
|
|
if (ext.filter) { |
|
text = ext.filter(text, globals.converter, options); |
|
} else if (ext.regex) { |
|
// TODO remove this when old extension loading mechanism is deprecated |
|
var re = ext.regex; |
|
|
|
if (!re instanceof RegExp) { |
|
re = new RegExp(re, 'g'); |
|
} |
|
|
|
text = text.replace(re, ext.replace); |
|
} |
|
|
|
return text; |
|
}); |
|
/** |
|
* These are all the transformations that occur *within* block-level |
|
* tags like paragraphs, headers, and list items. |
|
*/ |
|
|
|
showdown.subParser('spanGamut', function (text, options, globals) { |
|
'use strict'; |
|
|
|
text = globals.converter._dispatch('spanGamut.before', text, options, globals); |
|
text = showdown.subParser('codeSpans')(text, options, globals); |
|
text = showdown.subParser('escapeSpecialCharsWithinTagAttributes')(text, options, globals); |
|
text = showdown.subParser('encodeBackslashEscapes')(text, options, globals); // Process anchor and image tags. Images must come first, |
|
// because ![foo][f] looks like an anchor. |
|
|
|
text = showdown.subParser('images')(text, options, globals); |
|
text = showdown.subParser('anchors')(text, options, globals); // Make links out of things like `<http://example.com/>` |
|
// Must come after _DoAnchors(), because you can use < and > |
|
// delimiters in inline links like [this](<url>). |
|
|
|
text = showdown.subParser('autoLinks')(text, options, globals); |
|
text = showdown.subParser('encodeAmpsAndAngles')(text, options, globals); |
|
text = showdown.subParser('italicsAndBold')(text, options, globals); |
|
text = showdown.subParser('strikethrough')(text, options, globals); // Do hard breaks: |
|
|
|
text = text.replace(/ +\n/g, ' <br />\n'); |
|
text = globals.converter._dispatch('spanGamut.after', text, options, globals); |
|
return text; |
|
}); |
|
showdown.subParser('strikethrough', function (text, options, globals) { |
|
'use strict'; |
|
|
|
if (options.strikethrough) { |
|
text = globals.converter._dispatch('strikethrough.before', text, options, globals); |
|
text = text.replace(/(?:~T){2}([\s\S]+?)(?:~T){2}/g, '<del>$1</del>'); |
|
text = globals.converter._dispatch('strikethrough.after', text, options, globals); |
|
} |
|
|
|
return text; |
|
}); |
|
/** |
|
* Strip any lines consisting only of spaces and tabs. |
|
* This makes subsequent regexs easier to write, because we can |
|
* match consecutive blank lines with /\n+/ instead of something |
|
* contorted like /[ \t]*\n+/ |
|
*/ |
|
|
|
showdown.subParser('stripBlankLines', function (text) { |
|
'use strict'; |
|
|
|
return text.replace(/^[ \t]+$/mg, ''); |
|
}); |
|
/** |
|
* Strips link definitions from text, stores the URLs and titles in |
|
* hash references. |
|
* Link defs are in the form: ^[id]: url "optional title" |
|
* |
|
* ^[ ]{0,3}\[(.+)\]: // id = $1 attacklab: g_tab_width - 1 |
|
* [ \t]* |
|
* \n? // maybe *one* newline |
|
* [ \t]* |
|
* <?(\S+?)>? // url = $2 |
|
* [ \t]* |
|
* \n? // maybe one newline |
|
* [ \t]* |
|
* (?: |
|
* (\n*) // any lines skipped = $3 attacklab: lookbehind removed |
|
* ["(] |
|
* (.+?) // title = $4 |
|
* [")] |
|
* [ \t]* |
|
* )? // title is optional |
|
* (?:\n+|$) |
|
* /gm, |
|
* function(){...}); |
|
* |
|
*/ |
|
|
|
showdown.subParser('stripLinkDefinitions', function (text, options, globals) { |
|
'use strict'; |
|
|
|
var regex = /^ {0,3}\[(.+)]:[ \t]*\n?[ \t]*<?(\S+?)>?(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*\n?[ \t]*(?:(\n*)["|'(](.+?)["|')][ \t]*)?(?:\n+|(?=~0))/gm; // attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug |
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|
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text += '~0'; |
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text = text.replace(regex, function (wholeMatch, linkId, url, width, height, blankLines, title) { |
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linkId = linkId.toLowerCase(); |
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globals.gUrls[linkId] = showdown.subParser('encodeAmpsAndAngles')(url); // Link IDs are case-insensitive |
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|
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if (blankLines) { |
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// Oops, found blank lines, so it's not a title. |
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// Put back the parenthetical statement we stole. |
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return blankLines + title; |
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} else { |
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if (title) { |
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globals.gTitles[linkId] = title.replace(/"|'/g, '"'); |
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} |
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|
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if (options.parseImgDimensions && width && height) { |
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globals.gDimensions[linkId] = { |
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width: width, |
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height: height |
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}; |
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} |
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} // Completely remove the definition from the text |
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|
|
|
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return ''; |
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}); // attacklab: strip sentinel |
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|
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text = text.replace(/~0/, ''); |
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return text; |
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}); |
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showdown.subParser('tables', function (text, options, globals) { |
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'use strict'; |
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|
|
if (!options.tables) { |
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return text; |
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} |
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|
|
var tableRgx = /^[ \t]{0,3}\|?.+\|.+\n[ \t]{0,3}\|?[ \t]*:?[ \t]*(?:-|=){2,}[ \t]*:?[ \t]*\|[ \t]*:?[ \t]*(?:-|=){2,}[\s\S]+?(?:\n\n|~0)/gm; |
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|
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function parseStyles(sLine) { |
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if (/^:[ \t]*--*$/.test(sLine)) { |
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return ' style="text-align:left;"'; |
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} else if (/^--*[ \t]*:[ \t]*$/.test(sLine)) { |
|
return ' style="text-align:right;"'; |
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} else if (/^:[ \t]*--*[ \t]*:$/.test(sLine)) { |
|
return ' style="text-align:center;"'; |
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} else { |
|
return ''; |
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} |
|
} |
|
|
|
function parseHeaders(header, style) { |
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var id = ''; |
|
header = header.trim(); |
|
|
|
if (options.tableHeaderId) { |
|
id = ' id="' + header.replace(/ /g, '_').toLowerCase() + '"'; |
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} |
|
|
|
header = showdown.subParser('spanGamut')(header, options, globals); |
|
return '<th' + id + style + '>' + header + '</th>\n'; |
|
} |
|
|
|
function parseCells(cell, style) { |
|
var subText = showdown.subParser('spanGamut')(cell, options, globals); |
|
return '<td' + style + '>' + subText + '</td>\n'; |
|
} |
|
|
|
function buildTable(headers, cells) { |
|
var tb = '<table>\n<thead>\n<tr>\n', |
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tblLgn = headers.length; |
|
|
|
for (var i = 0; i < tblLgn; ++i) { |
|
tb += headers[i]; |
|
} |
|
|
|
tb += '</tr>\n</thead>\n<tbody>\n'; |
|
|
|
for (i = 0; i < cells.length; ++i) { |
|
tb += '<tr>\n'; |
|
|
|
for (var ii = 0; ii < tblLgn; ++ii) { |
|
tb += cells[i][ii]; |
|
} |
|
|
|
tb += '</tr>\n'; |
|
} |
|
|
|
tb += '</tbody>\n</table>\n'; |
|
return tb; |
|
} |
|
|
|
text = globals.converter._dispatch('tables.before', text, options, globals); |
|
text = text.replace(tableRgx, function (rawTable) { |
|
var i, |
|
tableLines = rawTable.split('\n'); // strip wrong first and last column if wrapped tables are used |
|
|
|
for (i = 0; i < tableLines.length; ++i) { |
|
if (/^[ \t]{0,3}\|/.test(tableLines[i])) { |
|
tableLines[i] = tableLines[i].replace(/^[ \t]{0,3}\|/, ''); |
|
} |
|
|
|
if (/\|[ \t]*$/.test(tableLines[i])) { |
|
tableLines[i] = tableLines[i].replace(/\|[ \t]*$/, ''); |
|
} |
|
} |
|
|
|
var rawHeaders = tableLines[0].split('|').map(function (s) { |
|
return s.trim(); |
|
}), |
|
rawStyles = tableLines[1].split('|').map(function (s) { |
|
return s.trim(); |
|
}), |
|
rawCells = [], |
|
headers = [], |
|
styles = [], |
|
cells = []; |
|
tableLines.shift(); |
|
tableLines.shift(); |
|
|
|
for (i = 0; i < tableLines.length; ++i) { |
|
if (tableLines[i].trim() === '') { |
|
continue; |
|
} |
|
|
|
rawCells.push(tableLines[i].split('|').map(function (s) { |
|
return s.trim(); |
|
})); |
|
} |
|
|
|
if (rawHeaders.length < rawStyles.length) { |
|
return rawTable; |
|
} |
|
|
|
for (i = 0; i < rawStyles.length; ++i) { |
|
styles.push(parseStyles(rawStyles[i])); |
|
} |
|
|
|
for (i = 0; i < rawHeaders.length; ++i) { |
|
if (showdown.helper.isUndefined(styles[i])) { |
|
styles[i] = ''; |
|
} |
|
|
|
headers.push(parseHeaders(rawHeaders[i], styles[i])); |
|
} |
|
|
|
for (i = 0; i < rawCells.length; ++i) { |
|
var row = []; |
|
|
|
for (var ii = 0; ii < headers.length; ++ii) { |
|
if (showdown.helper.isUndefined(rawCells[i][ii])) {} |
|
|
|
row.push(parseCells(rawCells[i][ii], styles[ii])); |
|
} |
|
|
|
cells.push(row); |
|
} |
|
|
|
return buildTable(headers, cells); |
|
}); |
|
text = globals.converter._dispatch('tables.after', text, options, globals); |
|
return text; |
|
}); |
|
/** |
|
* Swap back in all the special characters we've hidden. |
|
*/ |
|
|
|
showdown.subParser('unescapeSpecialChars', function (text) { |
|
'use strict'; |
|
|
|
text = text.replace(/~E(\d+)E/g, function (wholeMatch, m1) { |
|
var charCodeToReplace = parseInt(m1); |
|
return String.fromCharCode(charCodeToReplace); |
|
}); |
|
return text; |
|
}); |
|
module.exports = showdown; |