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| 58d006 | 1 | (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.toMarkdown = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){ |
| A | 2 | /* |
| 3 | * to-markdown - an HTML to Markdown converter | |
| 4 | * | |
| 5 | * Copyright 2011-15, Dom Christie | |
| 6 | * Licenced under the MIT licence | |
| 7 | * | |
| 8 | */ | |
| 9 | ||
| 10 | 'use strict'; | |
| 11 | ||
| 12 | var toMarkdown; | |
| 13 | var converters; | |
| 14 | var mdConverters = require('./lib/md-converters'); | |
| 15 | var gfmConverters = require('./lib/gfm-converters'); | |
| 16 | var collapse = require('collapse-whitespace'); | |
| 17 | ||
| 18 | /* | |
| 19 | * Set up window and document for Node.js | |
| 20 | */ | |
| 21 | ||
| 22 | var _window = (typeof window !== 'undefined' ? window : this), _document; | |
| 23 | if (typeof document === 'undefined') { | |
| 24 | _document = require('jsdom').jsdom(); | |
| 25 | } | |
| 26 | else { | |
| 27 | _document = document; | |
| 28 | } | |
| 29 | ||
| 30 | /* | |
| 31 | * Utilities | |
| 32 | */ | |
| 33 | ||
| 34 | function trim(string) { | |
| 35 | return string.replace(/^[ \r\n\t]+|[ \r\n\t]+$/g, ''); | |
| 36 | } | |
| 37 | ||
| 38 | var blocks = ['address', 'article', 'aside', 'audio', 'blockquote', 'body', | |
| 39 | 'canvas', 'center', 'dd', 'dir', 'div', 'dl', 'dt', 'fieldset', 'figcaption', | |
| 40 | 'figure', 'footer', 'form', 'frameset', 'h1', 'h2', 'h3', 'h4','h5', 'h6', | |
| 41 | 'header', 'hgroup', 'hr', 'html', 'isindex', 'li', 'main', 'menu', 'nav', | |
| 42 | 'noframes', 'noscript', 'ol', 'output', 'p', 'pre', 'section', 'table', | |
| 43 | 'tbody', 'td', 'tfoot', 'th', 'thead', 'tr', 'ul' | |
| 44 | ]; | |
| 45 | ||
| 46 | function isBlock(node) { | |
| 47 | return blocks.indexOf(node.nodeName.toLowerCase()) !== -1; | |
| 48 | } | |
| 49 | ||
| 50 | var voids = [ | |
| 51 | 'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', | |
| 52 | 'keygen', 'link', 'meta', 'param', 'source', 'track', 'wbr' | |
| 53 | ]; | |
| 54 | ||
| 55 | function isVoid(node) { | |
| 56 | return voids.indexOf(node.nodeName.toLowerCase()) !== -1; | |
| 57 | } | |
| 58 | ||
| 59 | /* | |
| 60 | * Parsing HTML strings | |
| 61 | */ | |
| 62 | ||
| 63 | function canParseHtml() { | |
| 64 | var Parser = _window.DOMParser, canParse = false; | |
| 65 | ||
| 66 | // Adapted from https://gist.github.com/1129031 | |
| 67 | // Firefox/Opera/IE throw errors on unsupported types | |
| 68 | try { | |
| 69 | // WebKit returns null on unsupported types | |
| 70 | if (new Parser().parseFromString('', 'text/html')) { | |
| 71 | canParse = true; | |
| 72 | } | |
| 73 | } catch (e) {} | |
| 74 | return canParse; | |
| 75 | } | |
| 76 | ||
| 77 | function createHtmlParser() { | |
| 78 | var Parser = function () {}; | |
| 79 | ||
| 80 | Parser.prototype.parseFromString = function (string) { | |
| 81 | var newDoc = _document.implementation.createHTMLDocument(''); | |
| 82 | ||
| 83 | if (string.toLowerCase().indexOf('<!doctype') > -1) { | |
| 84 | newDoc.documentElement.innerHTML = string; | |
| 85 | } | |
| 86 | else { | |
| 87 | newDoc.body.innerHTML = string; | |
| 88 | } | |
| 89 | return newDoc; | |
| 90 | }; | |
| 91 | return Parser; | |
| 92 | } | |
| 93 | ||
| 94 | var HtmlParser = canParseHtml() ? _window.DOMParser : createHtmlParser(); | |
| 95 | ||
| 96 | function htmlToDom(string) { | |
| 97 | var tree = new HtmlParser().parseFromString(string, 'text/html'); | |
| 98 | collapse(tree, isBlock); | |
| 99 | return tree; | |
| 100 | } | |
| 101 | ||
| 102 | /* | |
| 103 | * Flattens DOM tree into single array | |
| 104 | */ | |
| 105 | ||
| 106 | function bfsOrder(node) { | |
| 107 | var inqueue = [node], | |
| 108 | outqueue = [], | |
| 109 | elem, children, i; | |
| 110 | ||
| 111 | while (inqueue.length > 0) { | |
| 112 | elem = inqueue.shift(); | |
| 113 | outqueue.push(elem); | |
| 114 | children = elem.childNodes; | |
| 115 | for (i = 0 ; i < children.length; i++) { | |
| 116 | if (children[i].nodeType === 1) { inqueue.push(children[i]); } | |
| 117 | } | |
| 118 | } | |
| 119 | outqueue.shift(); | |
| 120 | return outqueue; | |
| 121 | } | |
| 122 | ||
| 123 | /* | |
| 124 | * Contructs a Markdown string of replacement text for a given node | |
| 125 | */ | |
| 126 | ||
| 127 | function getContent(node) { | |
| 128 | var text = ''; | |
| 129 | for (var i = 0; i < node.childNodes.length; i++) { | |
| 130 | if (node.childNodes[i].nodeType === 1) { | |
| 131 | text += node.childNodes[i]._replacement; | |
| 132 | } | |
| 133 | else if (node.childNodes[i].nodeType === 3) { | |
| 134 | text += node.childNodes[i].data; | |
| 135 | } | |
| 136 | else { continue; } | |
| 137 | } | |
| 138 | return text; | |
| 139 | } | |
| 140 | ||
| 141 | /* | |
| 142 | * Returns the HTML string of an element with its contents converted | |
| 143 | */ | |
| 144 | ||
| 145 | function outer(node, content) { | |
| 146 | return node.cloneNode(false).outerHTML.replace('><', '>'+ content +'<'); | |
| 147 | } | |
| 148 | ||
| 149 | function canConvert(node, filter) { | |
| 150 | if (typeof filter === 'string') { | |
| 151 | return filter === node.nodeName.toLowerCase(); | |
| 152 | } | |
| 153 | if (Array.isArray(filter)) { | |
| 154 | return filter.indexOf(node.nodeName.toLowerCase()) !== -1; | |
| 155 | } | |
| 156 | else if (typeof filter === 'function') { | |
| 157 | return filter.call(toMarkdown, node); | |
| 158 | } | |
| 159 | else { | |
| 160 | throw new TypeError('`filter` needs to be a string, array, or function'); | |
| 161 | } | |
| 162 | } | |
| 163 | ||
| 164 | function isFlankedByWhitespace(side, node) { | |
| 165 | var sibling, regExp, isFlanked; | |
| 166 | ||
| 167 | if (side === 'left') { | |
| 168 | sibling = node.previousSibling; | |
| 169 | regExp = / $/; | |
| 170 | } | |
| 171 | else { | |
| 172 | sibling = node.nextSibling; | |
| 173 | regExp = /^ /; | |
| 174 | } | |
| 175 | ||
| 176 | if (sibling) { | |
| 177 | if (sibling.nodeType === 3) { | |
| 178 | isFlanked = regExp.test(sibling.nodeValue); | |
| 179 | } | |
| 180 | else if(sibling.nodeType === 1 && !isBlock(sibling)) { | |
| 181 | isFlanked = regExp.test(sibling.textContent); | |
| 182 | } | |
| 183 | } | |
| 184 | return isFlanked; | |
| 185 | } | |
| 186 | ||
| 187 | function flankingWhitespace(node) { | |
| 188 | var leading = '', trailing = ''; | |
| 189 | ||
| 190 | if (!isBlock(node)) { | |
| 191 | var hasLeading = /^[ \r\n\t]/.test(node.innerHTML), | |
| 192 | hasTrailing = /[ \r\n\t]$/.test(node.innerHTML); | |
| 193 | ||
| 194 | if (hasLeading && !isFlankedByWhitespace('left', node)) { | |
| 195 | leading = ' '; | |
| 196 | } | |
| 197 | if (hasTrailing && !isFlankedByWhitespace('right', node)) { | |
| 198 | trailing = ' '; | |
| 199 | } | |
| 200 | } | |
| 201 | ||
| 202 | return { leading: leading, trailing: trailing }; | |
| 203 | } | |
| 204 | ||
| 205 | /* | |
| 206 | * Finds a Markdown converter, gets the replacement, and sets it on | |
| 207 | * `_replacement` | |
| 208 | */ | |
| 209 | ||
| 210 | function process(node) { | |
| 211 | var replacement, content = getContent(node); | |
| 212 | ||
| 213 | // Remove blank nodes | |
| 214 | if (!isVoid(node) && !/A/.test(node.nodeName) && /^\s*$/i.test(content)) { | |
| 215 | node._replacement = ''; | |
| 216 | return; | |
| 217 | } | |
| 218 | ||
| 219 | for (var i = 0; i < converters.length; i++) { | |
| 220 | var converter = converters[i]; | |
| 221 | ||
| 222 | if (canConvert(node, converter.filter)) { | |
| 223 | if (typeof converter.replacement !== 'function') { | |
| 224 | throw new TypeError( | |
| 225 | '`replacement` needs to be a function that returns a string' | |
| 226 | ); | |
| 227 | } | |
| 228 | ||
| 229 | var whitespace = flankingWhitespace(node); | |
| 230 | ||
| 231 | if (whitespace.leading || whitespace.trailing) { | |
| 232 | content = trim(content); | |
| 233 | } | |
| 234 | replacement = whitespace.leading + | |
| 235 | converter.replacement.call(toMarkdown, content, node) + | |
| 236 | whitespace.trailing; | |
| 237 | break; | |
| 238 | } | |
| 239 | } | |
| 240 | ||
| 241 | node._replacement = replacement; | |
| 242 | } | |
| 243 | ||
| 244 | toMarkdown = function (input, options) { | |
| 245 | options = options || {}; | |
| 246 | ||
| 247 | if (typeof input !== 'string') { | |
| 248 | throw new TypeError(input + ' is not a string'); | |
| 249 | } | |
| 250 | ||
| 251 | // Escape potential ol triggers | |
| 252 | input = input.replace(/(\d+)\. /g, '$1\\. '); | |
| 253 | ||
| 254 | var clone = htmlToDom(input).body, | |
| 255 | nodes = bfsOrder(clone), | |
| 256 | output; | |
| 257 | ||
| 258 | converters = mdConverters.slice(0); | |
| 259 | if (options.gfm) { | |
| 260 | converters = gfmConverters.concat(converters); | |
| 261 | } | |
| 262 | ||
| 263 | if (options.converters) { | |
| 264 | converters = options.converters.concat(converters); | |
| 265 | } | |
| 266 | ||
| 267 | // Process through nodes in reverse (so deepest child elements are first). | |
| 268 | for (var i = nodes.length - 1; i >= 0; i--) { | |
| 269 | process(nodes[i]); | |
| 270 | } | |
| 271 | output = getContent(clone); | |
| 272 | ||
| 273 | return output.replace(/^[\t\r\n]+|[\t\r\n\s]+$/g, '') | |
| 274 | .replace(/\n\s+\n/g, '\n\n') | |
| 275 | .replace(/\n{3,}/g, '\n\n'); | |
| 276 | }; | |
| 277 | ||
| 278 | toMarkdown.isBlock = isBlock; | |
| 279 | toMarkdown.isVoid = isVoid; | |
| 280 | toMarkdown.trim = trim; | |
| 281 | toMarkdown.outer = outer; | |
| 282 | ||
| 283 | module.exports = toMarkdown; | |
| 284 | ||
| 285 | },{"./lib/gfm-converters":2,"./lib/md-converters":3,"collapse-whitespace":4,"jsdom":7}],2:[function(require,module,exports){ | |
| 286 | 'use strict'; | |
| 287 | ||
| 288 | function cell(content, node) { | |
| 289 | var index = Array.prototype.indexOf.call(node.parentNode.childNodes, node); | |
| 290 | var prefix = ' '; | |
| 291 | if (index === 0) { prefix = '| '; } | |
| 292 | return prefix + content + ' |'; | |
| 293 | } | |
| 294 | ||
| 295 | var highlightRegEx = /highlight highlight-(\S+)/; | |
| 296 | ||
| 297 | module.exports = [ | |
| 298 | { | |
| 299 | filter: 'br', | |
| 300 | replacement: function () { | |
| 301 | return '\n'; | |
| 302 | } | |
| 303 | }, | |
| 304 | { | |
| 305 | filter: ['del', 's', 'strike'], | |
| 306 | replacement: function (content) { | |
| 307 | return '~~' + content + '~~'; | |
| 308 | } | |
| 309 | }, | |
| 310 | ||
| 311 | { | |
| 312 | filter: function (node) { | |
| 313 | return node.type === 'checkbox' && node.parentNode.nodeName === 'LI'; | |
| 314 | }, | |
| 315 | replacement: function (content, node) { | |
| 316 | return (node.checked ? '[x]' : '[ ]') + ' '; | |
| 317 | } | |
| 318 | }, | |
| 319 | ||
| 320 | { | |
| 321 | filter: ['th', 'td'], | |
| 322 | replacement: function (content, node) { | |
| 323 | return cell(content, node); | |
| 324 | } | |
| 325 | }, | |
| 326 | ||
| 327 | { | |
| 328 | filter: 'tr', | |
| 329 | replacement: function (content, node) { | |
| 330 | var borderCells = ''; | |
| 331 | var alignMap = { left: ':--', right: '--:', center: ':-:' }; | |
| 332 | ||
| 333 | if (node.parentNode.nodeName === 'THEAD') { | |
| 334 | for (var i = 0; i < node.childNodes.length; i++) { | |
| 335 | var align = node.childNodes[i].attributes.align; | |
| 336 | var border = '---'; | |
| 337 | ||
| 338 | if (align) { border = alignMap[align.value] || border; } | |
| 339 | ||
| 340 | borderCells += cell(border, node.childNodes[i]); | |
| 341 | } | |
| 342 | } | |
| 343 | return '\n' + content + (borderCells ? '\n' + borderCells : ''); | |
| 344 | } | |
| 345 | }, | |
| 346 | ||
| 347 | { | |
| 348 | filter: 'table', | |
| 349 | replacement: function (content) { | |
| 350 | return '\n\n' + content + '\n\n'; | |
| 351 | } | |
| 352 | }, | |
| 353 | ||
| 354 | { | |
| 355 | filter: ['thead', 'tbody', 'tfoot'], | |
| 356 | replacement: function (content) { | |
| 357 | return content; | |
| 358 | } | |
| 359 | }, | |
| 360 | ||
| 361 | // Fenced code blocks | |
| 362 | { | |
| 363 | filter: function (node) { | |
| 364 | return node.nodeName === 'PRE' && | |
| 365 | node.firstChild && | |
| 366 | node.firstChild.nodeName === 'CODE'; | |
| 367 | }, | |
| 368 | replacement: function(content, node) { | |
| 369 | return '\n\n```\n' + node.firstChild.textContent + '\n```\n\n'; | |
| 370 | } | |
| 371 | }, | |
| 372 | ||
| 373 | // Syntax-highlighted code blocks | |
| 374 | { | |
| 375 | filter: function (node) { | |
| 376 | return node.nodeName === 'PRE' && | |
| 377 | node.parentNode.nodeName === 'DIV' && | |
| 378 | highlightRegEx.test(node.parentNode.className); | |
| 379 | }, | |
| 380 | replacement: function (content, node) { | |
| 381 | var language = node.parentNode.className.match(highlightRegEx)[1]; | |
| 382 | return '\n\n```' + language + '\n' + node.textContent + '\n```\n\n'; | |
| 383 | } | |
| 384 | }, | |
| 385 | ||
| 386 | { | |
| 387 | filter: function (node) { | |
| 388 | return node.nodeName === 'DIV' && | |
| 389 | highlightRegEx.test(node.className); | |
| 390 | }, | |
| 391 | replacement: function (content) { | |
| 392 | return '\n\n' + content + '\n\n'; | |
| 393 | } | |
| 394 | } | |
| 395 | ]; | |
| 396 | ||
| 397 | },{}],3:[function(require,module,exports){ | |
| 398 | 'use strict'; | |
| 399 | ||
| 400 | module.exports = [ | |
| 401 | { | |
| 402 | filter: 'p', | |
| 403 | replacement: function (content) { | |
| 404 | return '\n\n' + content + '\n\n'; | |
| 405 | } | |
| 406 | }, | |
| 407 | ||
| 408 | { | |
| 409 | filter: 'br', | |
| 410 | replacement: function () { | |
| 411 | return ' \n'; | |
| 412 | } | |
| 413 | }, | |
| 414 | ||
| 415 | { | |
| 416 | filter: ['h1', 'h2', 'h3', 'h4','h5', 'h6'], | |
| 417 | replacement: function(content, node) { | |
| 418 | var hLevel = node.nodeName.charAt(1); | |
| 419 | var hPrefix = ''; | |
| 420 | for(var i = 0; i < hLevel; i++) { | |
| 421 | hPrefix += '#'; | |
| 422 | } | |
| 423 | return '\n\n' + hPrefix + ' ' + content + '\n\n'; | |
| 424 | } | |
| 425 | }, | |
| 426 | ||
| 427 | { | |
| 428 | filter: 'hr', | |
| 429 | replacement: function () { | |
| 430 | return '\n\n* * *\n\n'; | |
| 431 | } | |
| 432 | }, | |
| 433 | ||
| 434 | { | |
| 435 | filter: ['em', 'i'], | |
| 436 | replacement: function (content) { | |
| 437 | return '_' + content + '_'; | |
| 438 | } | |
| 439 | }, | |
| 440 | ||
| 441 | { | |
| 442 | filter: ['strong', 'b'], | |
| 443 | replacement: function (content) { | |
| 444 | return '**' + content + '**'; | |
| 445 | } | |
| 446 | }, | |
| 447 | ||
| 448 | // Inline code | |
| 449 | { | |
| 450 | filter: function (node) { | |
| 451 | var hasSiblings = node.previousSibling || node.nextSibling; | |
| 452 | var isCodeBlock = node.parentNode.nodeName === 'PRE' && !hasSiblings; | |
| 453 | ||
| 454 | return node.nodeName === 'CODE' && !isCodeBlock; | |
| 455 | }, | |
| 456 | replacement: function(content) { | |
| 457 | return '`' + content + '`'; | |
| 458 | } | |
| 459 | }, | |
| 460 | ||
| 461 | { | |
| 462 | filter: function (node) { | |
| 463 | return node.nodeName === 'A' && node.getAttribute('href'); | |
| 464 | }, | |
| 465 | replacement: function(content, node) { | |
| 466 | var titlePart = node.title ? ' "'+ node.title +'"' : ''; | |
| 467 | return '[' + content + '](' + node.getAttribute('href') + titlePart + ')'; | |
| 468 | } | |
| 469 | }, | |
| 470 | ||
| 471 | { | |
| 472 | filter: 'img', | |
| 473 | replacement: function(content, node) { | |
| 474 | var alt = node.alt || ''; | |
| 475 | var src = node.getAttribute('src') || ''; | |
| 476 | var title = node.title || ''; | |
| 477 | var titlePart = title ? ' "'+ title +'"' : ''; | |
| 478 | return src ? '![' + alt + ']' + '(' + src + titlePart + ')' : ''; | |
| 479 | } | |
| 480 | }, | |
| 481 | ||
| 482 | // Code blocks | |
| 483 | { | |
| 484 | filter: function (node) { | |
| 485 | return node.nodeName === 'PRE' && node.firstChild.nodeName === 'CODE'; | |
| 486 | }, | |
| 487 | replacement: function(content, node) { | |
| 488 | return '\n\n ' + node.firstChild.textContent.replace(/\n/g, '\n ') + '\n\n'; | |
| 489 | } | |
| 490 | }, | |
| 491 | ||
| 492 | { | |
| 493 | filter: 'blockquote', | |
| 494 | replacement: function (content) { | |
| 495 | content = this.trim(content); | |
| 496 | content = content.replace(/\n{3,}/g, '\n\n'); | |
| 497 | content = content.replace(/^/gm, '> '); | |
| 498 | return '\n\n' + content + '\n\n'; | |
| 499 | } | |
| 500 | }, | |
| 501 | ||
| 502 | { | |
| 503 | filter: 'li', | |
| 504 | replacement: function (content, node) { | |
| 505 | content = content.replace(/^\s+/, '').replace(/\n/gm, '\n '); | |
| 506 | var prefix = '* '; | |
| 507 | var parent = node.parentNode; | |
| 508 | var index = Array.prototype.indexOf.call(parent.children, node) + 1; | |
| 509 | ||
| 510 | prefix = /ol/i.test(parent.nodeName) ? index + '. ' : '* '; | |
| 511 | return prefix + content; | |
| 512 | } | |
| 513 | }, | |
| 514 | ||
| 515 | { | |
| 516 | filter: ['ul', 'ol'], | |
| 517 | replacement: function (content, node) { | |
| 518 | var strings = []; | |
| 519 | for (var i = 0; i < node.childNodes.length; i++) { | |
| 520 | strings.push(node.childNodes[i]._replacement); | |
| 521 | } | |
| 522 | ||
| 523 | if (/li/i.test(node.parentNode.nodeName)) { | |
| 524 | return '\n' + strings.join('\n'); | |
| 525 | } | |
| 526 | return '\n\n' + strings.join('\n') + '\n\n'; | |
| 527 | } | |
| 528 | }, | |
| 529 | ||
| 530 | { | |
| 531 | filter: function (node) { | |
| 532 | return this.isBlock(node); | |
| 533 | }, | |
| 534 | replacement: function (content, node) { | |
| 535 | return '\n\n' + this.outer(node, content) + '\n\n'; | |
| 536 | } | |
| 537 | }, | |
| 538 | ||
| 539 | // Anything else! | |
| 540 | { | |
| 541 | filter: function () { | |
| 542 | return true; | |
| 543 | }, | |
| 544 | replacement: function (content, node) { | |
| 545 | return this.outer(node, content); | |
| 546 | } | |
| 547 | } | |
| 548 | ]; | |
| 549 | },{}],4:[function(require,module,exports){ | |
| 550 | 'use strict'; | |
| 551 | ||
| 552 | var voidElements = require('void-elements'); | |
| 553 | Object.keys(voidElements).forEach(function (name) { | |
| 554 | voidElements[name.toUpperCase()] = 1; | |
| 555 | }); | |
| 556 | ||
| 557 | var blockElements = {}; | |
| 558 | require('block-elements').forEach(function (name) { | |
| 559 | blockElements[name.toUpperCase()] = 1; | |
| 560 | }); | |
| 561 | ||
| 562 | /** | |
| 563 | * isBlockElem(node) determines if the given node is a block element. | |
| 564 | * | |
| 565 | * @param {Node} node | |
| 566 | * @return {Boolean} | |
| 567 | */ | |
| 568 | function isBlockElem(node) { | |
| 569 | return !!(node && blockElements[node.nodeName]); | |
| 570 | } | |
| 571 | ||
| 572 | /** | |
| 573 | * isVoid(node) determines if the given node is a void element. | |
| 574 | * | |
| 575 | * @param {Node} node | |
| 576 | * @return {Boolean} | |
| 577 | */ | |
| 578 | function isVoid(node) { | |
| 579 | return !!(node && voidElements[node.nodeName]); | |
| 580 | } | |
| 581 | ||
| 582 | /** | |
| 583 | * whitespace(elem [, isBlock]) removes extraneous whitespace from an | |
| 584 | * the given element. The function isBlock may optionally be passed in | |
| 585 | * to determine whether or not an element is a block element; if none | |
| 586 | * is provided, defaults to using the list of block elements provided | |
| 587 | * by the `block-elements` module. | |
| 588 | * | |
| 589 | * @param {Node} elem | |
| 590 | * @param {Function} blockTest | |
| 591 | */ | |
| 592 | function collapseWhitespace(elem, isBlock) { | |
| 593 | if (!elem.firstChild || elem.nodeName === 'PRE') return; | |
| 594 | ||
| 595 | if (typeof isBlock !== 'function') { | |
| 596 | isBlock = isBlockElem; | |
| 597 | } | |
| 598 | ||
| 599 | var prevText = null; | |
| 600 | var prevVoid = false; | |
| 601 | ||
| 602 | var prev = null; | |
| 603 | var node = next(prev, elem); | |
| 604 | ||
| 605 | while (node !== elem) { | |
| 606 | if (node.nodeType === 3) { | |
| 607 | // Node.TEXT_NODE | |
| 608 | var text = node.data.replace(/[ \r\n\t]+/g, ' '); | |
| 609 | ||
| 610 | if ((!prevText || / $/.test(prevText.data)) && !prevVoid && text[0] === ' ') { | |
| 611 | text = text.substr(1); | |
| 612 | } | |
| 613 | ||
| 614 | // `text` might be empty at this point. | |
| 615 | if (!text) { | |
| 616 | node = remove(node); | |
| 617 | continue; | |
| 618 | } | |
| 619 | ||
| 620 | node.data = text; | |
| 621 | prevText = node; | |
| 622 | } else if (node.nodeType === 1) { | |
| 623 | // Node.ELEMENT_NODE | |
| 624 | if (isBlock(node) || node.nodeName === 'BR') { | |
| 625 | if (prevText) { | |
| 626 | prevText.data = prevText.data.replace(/ $/, ''); | |
| 627 | } | |
| 628 | ||
| 629 | prevText = null; | |
| 630 | prevVoid = false; | |
| 631 | } else if (isVoid(node)) { | |
| 632 | // Avoid trimming space around non-block, non-BR void elements. | |
| 633 | prevText = null; | |
| 634 | prevVoid = true; | |
| 635 | } | |
| 636 | } else { | |
| 637 | node = remove(node); | |
| 638 | continue; | |
| 639 | } | |
| 640 | ||
| 641 | var nextNode = next(prev, node); | |
| 642 | prev = node; | |
| 643 | node = nextNode; | |
| 644 | } | |
| 645 | ||
| 646 | if (prevText) { | |
| 647 | prevText.data = prevText.data.replace(/ $/, ''); | |
| 648 | if (!prevText.data) { | |
| 649 | remove(prevText); | |
| 650 | } | |
| 651 | } | |
| 652 | } | |
| 653 | ||
| 654 | /** | |
| 655 | * remove(node) removes the given node from the DOM and returns the | |
| 656 | * next node in the sequence. | |
| 657 | * | |
| 658 | * @param {Node} node | |
| 659 | * @return {Node} node | |
| 660 | */ | |
| 661 | function remove(node) { | |
| 662 | var next = node.nextSibling || node.parentNode; | |
| 663 | ||
| 664 | node.parentNode.removeChild(node); | |
| 665 | ||
| 666 | return next; | |
| 667 | } | |
| 668 | ||
| 669 | /** | |
| 670 | * next(prev, current) returns the next node in the sequence, given the | |
| 671 | * current and previous nodes. | |
| 672 | * | |
| 673 | * @param {Node} prev | |
| 674 | * @param {Node} current | |
| 675 | * @return {Node} | |
| 676 | */ | |
| 677 | function next(prev, current) { | |
| 678 | if (prev && prev.parentNode === current || current.nodeName === 'PRE') { | |
| 679 | return current.nextSibling || current.parentNode; | |
| 680 | } | |
| 681 | ||
| 682 | return current.firstChild || current.nextSibling || current.parentNode; | |
| 683 | } | |
| 684 | ||
| 685 | module.exports = collapseWhitespace; | |
| 686 | ||
| 687 | },{"block-elements":5,"void-elements":6}],5:[function(require,module,exports){ | |
| 688 | /** | |
| 689 | * This file automatically generated from `build.js`. | |
| 690 | * Do not manually edit. | |
| 691 | */ | |
| 692 | ||
| 693 | module.exports = [ | |
| 694 | "address", | |
| 695 | "article", | |
| 696 | "aside", | |
| 697 | "audio", | |
| 698 | "blockquote", | |
| 699 | "canvas", | |
| 700 | "dd", | |
| 701 | "div", | |
| 702 | "dl", | |
| 703 | "fieldset", | |
| 704 | "figcaption", | |
| 705 | "figure", | |
| 706 | "footer", | |
| 707 | "form", | |
| 708 | "h1", | |
| 709 | "h2", | |
| 710 | "h3", | |
| 711 | "h4", | |
| 712 | "h5", | |
| 713 | "h6", | |
| 714 | "header", | |
| 715 | "hgroup", | |
| 716 | "hr", | |
| 717 | "main", | |
| 718 | "nav", | |
| 719 | "noscript", | |
| 720 | "ol", | |
| 721 | "output", | |
| 722 | "p", | |
| 723 | "pre", | |
| 724 | "section", | |
| 725 | "table", | |
| 726 | "tfoot", | |
| 727 | "ul", | |
| 728 | "video" | |
| 729 | ]; | |
| 730 | ||
| 731 | },{}],6:[function(require,module,exports){ | |
| 732 | /** | |
| 733 | * This file automatically generated from `pre-publish.js`. | |
| 734 | * Do not manually edit. | |
| 735 | */ | |
| 736 | ||
| 737 | module.exports = { | |
| 738 | "area": true, | |
| 739 | "base": true, | |
| 740 | "br": true, | |
| 741 | "col": true, | |
| 742 | "embed": true, | |
| 743 | "hr": true, | |
| 744 | "img": true, | |
| 745 | "input": true, | |
| 746 | "keygen": true, | |
| 747 | "link": true, | |
| 748 | "menuitem": true, | |
| 749 | "meta": true, | |
| 750 | "param": true, | |
| 751 | "source": true, | |
| 752 | "track": true, | |
| 753 | "wbr": true | |
| 754 | }; | |
| 755 | ||
| 756 | },{}],7:[function(require,module,exports){ | |
| 757 | ||
| 758 | },{}]},{},[1])(1) | |
| 759 | }); | |
