Upload 3 files

clipboard2markdown.js

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+(function () {
+  'use strict';
+
+  // http://pandoc.org/README.html#pandocs-markdown
+  var pandoc = [
+    {
+      filter: 'h1',
+      replacement: function (content, node) {
+        var underline = Array(content.length + 1).join('=');
+        return '\n\n' + content + '\n' + underline + '\n\n';
+      }
+    },
+
+    {
+      filter: 'h2',
+      replacement: function (content, node) {
+        var underline = Array(content.length + 1).join('-');
+        return '\n\n' + content + '\n' + underline + '\n\n';
+      }
+    },
+
+    {
+      filter: 'sup',
+      replacement: function (content) {
+        return '^' + content + '^';
+      }
+    },
+
+    {
+      filter: 'sub',
+      replacement: function (content) {
+        return '~' + content + '~';
+      }
+    },
+
+    {
+      filter: 'br',
+      replacement: function () {
+        return '\\\n';
+      }
+    },
+
+    {
+      filter: 'hr',
+      replacement: function () {
+        return '\n\n* * * * *\n\n';
+      }
+    },
+
+    {
+      filter: ['em', 'i', 'cite', 'var'],
+      replacement: function (content) {
+        return '*' + content + '*';
+      }
+    },
+
+    {
+      filter: function (node) {
+        var hasSiblings = node.previousSibling || node.nextSibling;
+        var isCodeBlock = node.parentNode.nodeName === 'PRE' && !hasSiblings;
+        var isCodeElem = node.nodeName === 'CODE' ||
+            node.nodeName === 'KBD' ||
+            node.nodeName === 'SAMP' ||
+            node.nodeName === 'TT';
+
+        return isCodeElem && !isCodeBlock;
+      },
+      replacement: function (content) {
+        return '`' + content + '`';
+      }
+    },
+
+    {
+      filter: function (node) {
+        return node.nodeName === 'A' && node.getAttribute('href');
+      },
+      replacement: function (content, node) {
+        var url = node.getAttribute('href');
+        var titlePart = node.title ? ' "' + node.title + '"' : '';
+        if (content === url) {
+          return '<' + url + '>';
+        } else if (url === ('mailto:' + content)) {
+          return '<' + content + '>';
+        } else {
+          return '[' + content + '](' + url + titlePart + ')';
+        }
+      }
+    },
+
+    {
+      filter: 'li',
+      replacement: function (content, node) {
+        content = content.replace(/^\s+/, '').replace(/\n/gm, '\n    ');
+        var prefix = '-   ';
+        var parent = node.parentNode;
+
+        if (/ol/i.test(parent.nodeName)) {
+          var index = Array.prototype.indexOf.call(parent.children, node) + 1;
+          prefix = index + '. ';
+          while (prefix.length < 4) {
+            prefix += ' ';
+          }
+        }
+
+        return prefix + content;
+      }
+    }
+  ];
+
+  // http://pandoc.org/README.html#smart-punctuation
+  var escape = function (str) {
+    return str.replace(/[\u2018\u2019\u00b4]/g, "'")
+              .replace(/[\u201c\u201d\u2033]/g, '"')
+              .replace(/[\u2212\u2022\u00b7\u25aa]/g, '-')
+              .replace(/[\u2013\u2015]/g, '--')
+              .replace(/\u2014/g, '---')
+              .replace(/\u2026/g, '...')
+              .replace(/[ ]+\n/g, '\n')
+              .replace(/\s*\\\n/g, '\\\n')
+              .replace(/\s*\\\n\s*\\\n/g, '\n\n')
+              .replace(/\s*\\\n\n/g, '\n\n')
+              .replace(/\n-\n/g, '\n')
+              .replace(/\n\n\s*\\\n/g, '\n\n')
+              .replace(/\n\n\n*/g, '\n\n')
+              .replace(/[ ]+$/gm, '')
+              .replace(/^\s+|[\s\\]+$/g, '');
+  };
+
+  var convert = function (str) {
+    return escape(toMarkdown(str, { converters: pandoc, gfm: true }));
+  }
+
+  var insert = function (myField, myValue) {
+      if (document.selection) {
+          myField.focus();
+          sel = document.selection.createRange();
+          sel.text = myValue;
+          sel.select()
+      } else {
+          if (myField.selectionStart || myField.selectionStart == "0") {
+              var startPos = myField.selectionStart;
+              var endPos = myField.selectionEnd;
+              var beforeValue = myField.value.substring(0, startPos);
+              var afterValue = myField.value.substring(endPos, myField.value.length);
+              myField.value = beforeValue + myValue + afterValue;
+              myField.selectionStart = startPos + myValue.length;
+              myField.selectionEnd = startPos + myValue.length;
+              myField.focus()
+          } else {
+              myField.value += myValue;
+              myField.focus()
+          }
+      }
+  };
+
+  // http://stackoverflow.com/questions/2176861/javascript-get-clipboard-data-on-paste-event-cross-browser
+  document.addEventListener('DOMContentLoaded', function () {
+    var info = document.querySelector('#info');
+    var pastebin = document.querySelector('#pastebin');
+    var output = document.querySelector('#output');
+    var wrapper = document.querySelector('#wrapper');
+
+    document.addEventListener('keydown', function (event) {
+      if (event.ctrlKey || event.metaKey) {
+        if (String.fromCharCode(event.which).toLowerCase() === 'v') {
+          pastebin.innerHTML = '';
+          pastebin.focus();
+          info.classList.add('hidden');
+          wrapper.classList.add('hidden');
+        }
+      }
+    });
+
+    pastebin.addEventListener('paste', function () {
+      setTimeout(function () {
+        var html = pastebin.innerHTML;
+        var markdown = convert(html);
+        // output.value = markdown;
+        insert(output, markdown);
+        wrapper.classList.remove('hidden');
+        output.focus();
+        output.select();
+      }, 200);
+    });
+  });
+})();

to-markdown.js

@@ -0,0 +1,787 @@
+(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){
+/*
+ * to-markdown - an HTML to Markdown converter
+ *
+ * Copyright 2011+, Dom Christie
+ * Licenced under the MIT licence
+ *
+ */
+
+'use strict'
+
+var toMarkdown
+var converters
+var mdConverters = require('./lib/md-converters')
+var gfmConverters = require('./lib/gfm-converters')
+var HtmlParser = require('./lib/html-parser')
+var collapse = require('collapse-whitespace')
+
+/*
+ * Utilities
+ */
+
+var blocks = ['address', 'article', 'aside', 'audio', 'blockquote', 'body',
+  'canvas', 'center', 'dd', 'dir', 'div', 'dl', 'dt', 'fieldset', 'figcaption',
+  'figure', 'footer', 'form', 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6',
+  'header', 'hgroup', 'hr', 'html', 'isindex', 'li', 'main', 'menu', 'nav',
+  'noframes', 'noscript', 'ol', 'output', 'p', 'pre', 'section', 'table',
+  'tbody', 'td', 'tfoot', 'th', 'thead', 'tr', 'ul'
+]
+
+function isBlock (node) {
+  return blocks.indexOf(node.nodeName.toLowerCase()) !== -1
+}
+
+var voids = [
+  'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input',
+  'keygen', 'link', 'meta', 'param', 'source', 'track', 'wbr'
+]
+
+function isVoid (node) {
+  return voids.indexOf(node.nodeName.toLowerCase()) !== -1
+}
+
+function htmlToDom (string) {
+  var tree = new HtmlParser().parseFromString(string, 'text/html')
+  collapse(tree.documentElement, isBlock)
+  return tree
+}
+
+/*
+ * Flattens DOM tree into single array
+ */
+
+function bfsOrder (node) {
+  var inqueue = [node]
+  var outqueue = []
+  var elem
+  var children
+  var i
+
+  while (inqueue.length > 0) {
+    elem = inqueue.shift()
+    outqueue.push(elem)
+    children = elem.childNodes
+    for (i = 0; i < children.length; i++) {
+      if (children[i].nodeType === 1) inqueue.push(children[i])
+    }
+  }
+  outqueue.shift()
+  return outqueue
+}
+
+/*
+ * Contructs a Markdown string of replacement text for a given node
+ */
+
+function getContent (node) {
+  var text = ''
+  for (var i = 0; i < node.childNodes.length; i++) {
+    if (node.childNodes[i].nodeType === 1) {
+      text += node.childNodes[i]._replacement
+    } else if (node.childNodes[i].nodeType === 3) {
+      text += node.childNodes[i].data
+    } else continue
+  }
+  return text
+}
+
+/*
+ * Returns the HTML string of an element with its contents converted
+ */
+
+function outer (node, content) {
+  return node.cloneNode(false).outerHTML.replace('><', '>' + content + '<')
+}
+
+function canConvert (node, filter) {
+  if (typeof filter === 'string') {
+    return filter === node.nodeName.toLowerCase()
+  }
+  if (Array.isArray(filter)) {
+    return filter.indexOf(node.nodeName.toLowerCase()) !== -1
+  } else if (typeof filter === 'function') {
+    return filter.call(toMarkdown, node)
+  } else {
+    throw new TypeError('`filter` needs to be a string, array, or function')
+  }
+}
+
+function isFlankedByWhitespace (side, node) {
+  var sibling
+  var regExp
+  var isFlanked
+
+  if (side === 'left') {
+    sibling = node.previousSibling
+    regExp = / $/
+  } else {
+    sibling = node.nextSibling
+    regExp = /^ /
+  }
+
+  if (sibling) {
+    if (sibling.nodeType === 3) {
+      isFlanked = regExp.test(sibling.nodeValue)
+    } else if (sibling.nodeType === 1 && !isBlock(sibling)) {
+      isFlanked = regExp.test(sibling.textContent)
+    }
+  }
+  return isFlanked
+}
+
+function flankingWhitespace (node) {
+  var leading = ''
+  var trailing = ''
+
+  if (!isBlock(node)) {
+    var hasLeading = /^[ \r\n\t]/.test(node.innerHTML)
+    var hasTrailing = /[ \r\n\t]$/.test(node.innerHTML)
+
+    if (hasLeading && !isFlankedByWhitespace('left', node)) {
+      leading = ' '
+    }
+    if (hasTrailing && !isFlankedByWhitespace('right', node)) {
+      trailing = ' '
+    }
+  }
+
+  return { leading: leading, trailing: trailing }
+}
+
+/*
+ * Finds a Markdown converter, gets the replacement, and sets it on
+ * `_replacement`
+ */
+
+function process (node) {
+  var replacement
+  var content = getContent(node)
+
+  // Remove blank nodes
+  if (!isVoid(node) && !/A|TH|TD/.test(node.nodeName) && /^\s*$/i.test(content)) {
+    node._replacement = ''
+    return
+  }
+
+  for (var i = 0; i < converters.length; i++) {
+    var converter = converters[i]
+
+    if (canConvert(node, converter.filter)) {
+      if (typeof converter.replacement !== 'function') {
+        throw new TypeError(
+          '`replacement` needs to be a function that returns a string'
+        )
+      }
+
+      var whitespace = flankingWhitespace(node)
+
+      if (whitespace.leading || whitespace.trailing) {
+        content = content.trim()
+      }
+      replacement = whitespace.leading +
+        converter.replacement.call(toMarkdown, content, node) +
+        whitespace.trailing
+      break
+    }
+  }
+
+  node._replacement = replacement
+}
+
+toMarkdown = function (input, options) {
+  options = options || {}
+
+  if (typeof input !== 'string') {
+    throw new TypeError(input + ' is not a string')
+  }
+
+  // Escape potential ol triggers
+  input = input.replace(/(>[\r\n\s]*)(\d+)\.(&nbsp;| )/g, '$1$2\\.$3')
+
+  var clone = htmlToDom(input).body
+  var nodes = bfsOrder(clone)
+  var output
+
+  converters = mdConverters.slice(0)
+  if (options.gfm) {
+    converters = gfmConverters.concat(converters)
+  }
+
+  if (options.converters) {
+    converters = options.converters.concat(converters)
+  }
+
+  // Process through nodes in reverse (so deepest child elements are first).
+  for (var i = nodes.length - 1; i >= 0; i--) {
+    process(nodes[i])
+  }
+  output = getContent(clone)
+
+  return output.replace(/^[\t\r\n]+|[\t\r\n\s]+$/g, '')
+    .replace(/\n\s+\n/g, '\n\n')
+    .replace(/\n{3,}/g, '\n\n')
+}
+
+toMarkdown.isBlock = isBlock
+toMarkdown.isVoid = isVoid
+toMarkdown.outer = outer
+
+module.exports = toMarkdown
+
+},{"./lib/gfm-converters":2,"./lib/html-parser":3,"./lib/md-converters":4,"collapse-whitespace":7}],2:[function(require,module,exports){
+'use strict'
+
+function cell (content, node) {
+  var index = Array.prototype.indexOf.call(node.parentNode.childNodes, node)
+  var prefix = ' '
+  if (index === 0) prefix = '| '
+  return prefix + content + ' |'
+}
+
+var highlightRegEx = /highlight highlight-(\S+)/
+
+module.exports = [
+  {
+    filter: 'br',
+    replacement: function () {
+      return '\n'
+    }
+  },
+  {
+    filter: ['del', 's', 'strike'],
+    replacement: function (content) {
+      return '~~' + content + '~~'
+    }
+  },
+
+  {
+    filter: function (node) {
+      return node.type === 'checkbox' && node.parentNode.nodeName === 'LI'
+    },
+    replacement: function (content, node) {
+      return (node.checked ? '[x]' : '[ ]') + ' '
+    }
+  },
+
+  {
+    filter: ['th', 'td'],
+    replacement: function (content, node) {
+      return cell(content, node)
+    }
+  },
+
+  {
+    filter: 'tr',
+    replacement: function (content, node) {
+      var borderCells = ''
+      var alignMap = { left: ':--', right: '--:', center: ':-:' }
+
+      if (node.parentNode.nodeName === 'THEAD') {
+        for (var i = 0; i < node.childNodes.length; i++) {
+          var align = node.childNodes[i].attributes.align
+          var border = '---'
+
+          if (align) border = alignMap[align.value] || border
+
+          borderCells += cell(border, node.childNodes[i])
+        }
+      }
+      return '\n' + content + (borderCells ? '\n' + borderCells : '')
+    }
+  },
+
+  {
+    filter: 'table',
+    replacement: function (content) {
+      return '\n\n' + content + '\n\n'
+    }
+  },
+
+  {
+    filter: ['thead', 'tbody', 'tfoot'],
+    replacement: function (content) {
+      return content
+    }
+  },
+
+  // Fenced code blocks
+  {
+    filter: function (node) {
+      return node.nodeName === 'PRE' &&
+      node.firstChild &&
+      node.firstChild.nodeName === 'CODE'
+    },
+    replacement: function (content, node) {
+      return '\n\n```\n' + node.firstChild.textContent + '\n```\n\n'
+    }
+  },
+
+  // Syntax-highlighted code blocks
+  {
+    filter: function (node) {
+      return node.nodeName === 'PRE' &&
+      node.parentNode.nodeName === 'DIV' &&
+      highlightRegEx.test(node.parentNode.className)
+    },
+    replacement: function (content, node) {
+      var language = node.parentNode.className.match(highlightRegEx)[1]
+      return '\n\n```' + language + '\n' + node.textContent + '\n```\n\n'
+    }
+  },
+
+  {
+    filter: function (node) {
+      return node.nodeName === 'DIV' &&
+      highlightRegEx.test(node.className)
+    },
+    replacement: function (content) {
+      return '\n\n' + content + '\n\n'
+    }
+  }
+]
+
+},{}],3:[function(require,module,exports){
+/*
+ * Set up window for Node.js
+ */
+
+var _window = (typeof window !== 'undefined' ? window : this)
+
+/*
+ * Parsing HTML strings
+ */
+
+function canParseHtmlNatively () {
+  var Parser = _window.DOMParser
+  var canParse = false
+
+  // Adapted from https://gist.github.com/1129031
+  // Firefox/Opera/IE throw errors on unsupported types
+  try {
+    // WebKit returns null on unsupported types
+    if (new Parser().parseFromString('', 'text/html')) {
+      canParse = true
+    }
+  } catch (e) {}
+
+  return canParse
+}
+
+function createHtmlParser () {
+  var Parser = function () {}
+
+  // For Node.js environments
+  if (typeof document === 'undefined') {
+    var jsdom = require('jsdom')
+    Parser.prototype.parseFromString = function (string) {
+      return jsdom.jsdom(string, {
+        features: {
+          FetchExternalResources: [],
+          ProcessExternalResources: false
+        }
+      })
+    }
+  } else {
+    if (!shouldUseActiveX()) {
+      Parser.prototype.parseFromString = function (string) {
+        var doc = document.implementation.createHTMLDocument('')
+        doc.open()
+        doc.write(string)
+        doc.close()
+        return doc
+      }
+    } else {
+      Parser.prototype.parseFromString = function (string) {
+        var doc = new window.ActiveXObject('htmlfile')
+        doc.designMode = 'on' // disable on-page scripts
+        doc.open()
+        doc.write(string)
+        doc.close()
+        return doc
+      }
+    }
+  }
+  return Parser
+}
+
+function shouldUseActiveX () {
+  var useActiveX = false
+
+  try {
+    document.implementation.createHTMLDocument('').open()
+  } catch (e) {
+    if (window.ActiveXObject) useActiveX = true
+  }
+
+  return useActiveX
+}
+
+module.exports = canParseHtmlNatively() ? _window.DOMParser : createHtmlParser()
+
+},{"jsdom":6}],4:[function(require,module,exports){
+'use strict'
+
+module.exports = [
+  {
+    filter: 'p',
+    replacement: function (content) {
+      return '\n\n' + content + '\n\n'
+    }
+  },
+
+  {
+    filter: 'br',
+    replacement: function () {
+      return '  \n'
+    }
+  },
+
+  {
+    filter: ['h1', 'h2', 'h3', 'h4', 'h5', 'h6'],
+    replacement: function (content, node) {
+      var hLevel = node.nodeName.charAt(1)
+      var hPrefix = ''
+      for (var i = 0; i < hLevel; i++) {
+        hPrefix += '#'
+      }
+      return '\n\n' + hPrefix + ' ' + content + '\n\n'
+    }
+  },
+
+  {
+    filter: 'hr',
+    replacement: function () {
+      return '\n\n* * *\n\n'
+    }
+  },
+
+  {
+    filter: ['em', 'i'],
+    replacement: function (content) {
+      return '_' + content + '_'
+    }
+  },
+
+  {
+    filter: ['strong', 'b'],
+    replacement: function (content) {
+      return '**' + content + '**'
+    }
+  },
+
+  // Inline code
+  {
+    filter: function (node) {
+      var hasSiblings = node.previousSibling || node.nextSibling
+      var isCodeBlock = node.parentNode.nodeName === 'PRE' && !hasSiblings
+
+      return node.nodeName === 'CODE' && !isCodeBlock
+    },
+    replacement: function (content) {
+      return '`' + content + '`'
+    }
+  },
+
+  {
+    filter: function (node) {
+      return node.nodeName === 'A' && node.getAttribute('href')
+    },
+    replacement: function (content, node) {
+      var titlePart = node.title ? ' "' + node.title + '"' : ''
+      return '[' + content + '](' + node.getAttribute('href') + titlePart + ')'
+    }
+  },
+
+  {
+    filter: 'img',
+    replacement: function (content, node) {
+      var alt = node.alt || ''
+      var src = node.getAttribute('src') || ''
+      var title = node.title || ''
+      var titlePart = title ? ' "' + title + '"' : ''
+      return src ? '![' + alt + ']' + '(' + src + titlePart + ')' : ''
+    }
+  },
+
+  // Code blocks
+  {
+    filter: function (node) {
+      return node.nodeName === 'PRE' && node.firstChild.nodeName === 'CODE'
+    },
+    replacement: function (content, node) {
+      return '\n\n    ' + node.firstChild.textContent.replace(/\n/g, '\n    ') + '\n\n'
+    }
+  },
+
+  {
+    filter: 'blockquote',
+    replacement: function (content) {
+      content = content.trim()
+      content = content.replace(/\n{3,}/g, '\n\n')
+      content = content.replace(/^/gm, '> ')
+      return '\n\n' + content + '\n\n'
+    }
+  },
+
+  {
+    filter: 'li',
+    replacement: function (content, node) {
+      content = content.replace(/^\s+/, '').replace(/\n/gm, '\n    ')
+      var prefix = '*   '
+      var parent = node.parentNode
+      var index = Array.prototype.indexOf.call(parent.children, node) + 1
+
+      prefix = /ol/i.test(parent.nodeName) ? index + '.  ' : '*   '
+      return prefix + content
+    }
+  },
+
+  {
+    filter: ['ul', 'ol'],
+    replacement: function (content, node) {
+      var strings = []
+      for (var i = 0; i < node.childNodes.length; i++) {
+        strings.push(node.childNodes[i]._replacement)
+      }
+
+      if (/li/i.test(node.parentNode.nodeName)) {
+        return '\n' + strings.join('\n')
+      }
+      return '\n\n' + strings.join('\n') + '\n\n'
+    }
+  },
+
+  {
+    filter: function (node) {
+      return this.isBlock(node)
+    },
+    replacement: function (content, node) {
+      // return '\n\n' + this.outer(node, content) + '\n\n'
+      return '\n\n' + content + '\n\n'
+    }
+  },
+
+  // Anything else!
+  {
+    filter: function () {
+      return true
+    },
+    replacement: function (content, node) {
+      // return this.outer(node, content)
+      return content
+    }
+  }
+]
+
+},{}],5:[function(require,module,exports){
+/**
+ * This file automatically generated from `build.js`.
+ * Do not manually edit.
+ */
+
+module.exports = [
+  "address",
+  "article",
+  "aside",
+  "audio",
+  "blockquote",
+  "canvas",
+  "dd",
+  "div",
+  "dl",
+  "fieldset",
+  "figcaption",
+  "figure",
+  "footer",
+  "form",
+  "h1",
+  "h2",
+  "h3",
+  "h4",
+  "h5",
+  "h6",
+  "header",
+  "hgroup",
+  "hr",
+  "main",
+  "nav",
+  "noscript",
+  "ol",
+  "output",
+  "p",
+  "pre",
+  "section",
+  "table",
+  "tfoot",
+  "ul",
+  "video"
+];
+
+},{}],6:[function(require,module,exports){
+
+},{}],7:[function(require,module,exports){
+'use strict';
+
+var voidElements = require('void-elements');
+Object.keys(voidElements).forEach(function (name) {
+  voidElements[name.toUpperCase()] = 1;
+});
+
+var blockElements = {};
+require('block-elements').forEach(function (name) {
+  blockElements[name.toUpperCase()] = 1;
+});
+
+/**
+ * isBlockElem(node) determines if the given node is a block element.
+ *
+ * @param {Node} node
+ * @return {Boolean}
+ */
+function isBlockElem(node) {
+  return !!(node && blockElements[node.nodeName]);
+}
+
+/**
+ * isVoid(node) determines if the given node is a void element.
+ *
+ * @param {Node} node
+ * @return {Boolean}
+ */
+function isVoid(node) {
+  return !!(node && voidElements[node.nodeName]);
+}
+
+/**
+ * whitespace(elem [, isBlock]) removes extraneous whitespace from an
+ * the given element. The function isBlock may optionally be passed in
+ * to determine whether or not an element is a block element; if none
+ * is provided, defaults to using the list of block elements provided
+ * by the `block-elements` module.
+ *
+ * @param {Node} elem
+ * @param {Function} blockTest
+ */
+function collapseWhitespace(elem, isBlock) {
+  if (!elem.firstChild || elem.nodeName === 'PRE') return;
+
+  if (typeof isBlock !== 'function') {
+    isBlock = isBlockElem;
+  }
+
+  var prevText = null;
+  var prevVoid = false;
+
+  var prev = null;
+  var node = next(prev, elem);
+
+  while (node !== elem) {
+    if (node.nodeType === 3) {
+      // Node.TEXT_NODE
+      var text = node.data.replace(/[ \r\n\t]+/g, ' ');
+
+      if ((!prevText || / $/.test(prevText.data)) && !prevVoid && text[0] === ' ') {
+        text = text.substr(1);
+      }
+
+      // `text` might be empty at this point.
+      if (!text) {
+        node = remove(node);
+        continue;
+      }
+
+      node.data = text;
+      prevText = node;
+    } else if (node.nodeType === 1) {
+      // Node.ELEMENT_NODE
+      if (isBlock(node) || node.nodeName === 'BR') {
+        if (prevText) {
+          prevText.data = prevText.data.replace(/ $/, '');
+        }
+
+        prevText = null;
+        prevVoid = false;
+      } else if (isVoid(node)) {
+        // Avoid trimming space around non-block, non-BR void elements.
+        prevText = null;
+        prevVoid = true;
+      }
+    } else {
+      node = remove(node);
+      continue;
+    }
+
+    var nextNode = next(prev, node);
+    prev = node;
+    node = nextNode;
+  }
+
+  if (prevText) {
+    prevText.data = prevText.data.replace(/ $/, '');
+    if (!prevText.data) {
+      remove(prevText);
+    }
+  }
+}
+
+/**
+ * remove(node) removes the given node from the DOM and returns the
+ * next node in the sequence.
+ *
+ * @param {Node} node
+ * @return {Node} node
+ */
+function remove(node) {
+  var next = node.nextSibling || node.parentNode;
+
+  node.parentNode.removeChild(node);
+
+  return next;
+}
+
+/**
+ * next(prev, current) returns the next node in the sequence, given the
+ * current and previous nodes.
+ *
+ * @param {Node} prev
+ * @param {Node} current
+ * @return {Node}
+ */
+function next(prev, current) {
+  if (prev && prev.parentNode === current || current.nodeName === 'PRE') {
+    return current.nextSibling || current.parentNode;
+  }
+
+  return current.firstChild || current.nextSibling || current.parentNode;
+}
+
+module.exports = collapseWhitespace;
+
+},{"block-elements":5,"void-elements":8}],8:[function(require,module,exports){
+/**
+ * This file automatically generated from `pre-publish.js`.
+ * Do not manually edit.
+ */
+
+module.exports = {
+  "area": true,
+  "base": true,
+  "br": true,
+  "col": true,
+  "embed": true,
+  "hr": true,
+  "img": true,
+  "input": true,
+  "keygen": true,
+  "link": true,
+  "menuitem": true,
+  "meta": true,
+  "param": true,
+  "source": true,
+  "track": true,
+  "wbr": true
+};
+
+},{}]},{},[1])(1)
+});