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node_modules/clean-css/lib/text/comments-processor.js

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+var EscapeStore = require('./escape-store');
+var QuoteScanner = require('../utils/quote-scanner');
+
+var SPECIAL_COMMENT_PREFIX = '/*!';
+var COMMENT_PREFIX = '/*';
+var COMMENT_SUFFIX = '*/';
+
+var lineBreak = require('os').EOL;
+
+function CommentsProcessor(context, keepSpecialComments, keepBreaks, saveWaypoints) {
+  this.comments = new EscapeStore('COMMENT');
+  this.specialComments = new EscapeStore('COMMENT_SPECIAL');
+
+  this.context = context;
+  this.restored = 0;
+  this.keepAll = keepSpecialComments == '*';
+  this.keepOne = keepSpecialComments == '1' || keepSpecialComments === 1;
+  this.keepBreaks = keepBreaks;
+  this.saveWaypoints = saveWaypoints;
+}
+
+function quoteScannerFor(data) {
+  var quoteMap = [];
+  new QuoteScanner(data).each(function (quotedString, _, startsAt) {
+    quoteMap.push([startsAt, startsAt + quotedString.length]);
+  });
+
+  return function (position) {
+    for (var i = 0, l = quoteMap.length; i < l; i++) {
+      if (quoteMap[i][0] < position && quoteMap[i][1] > position)
+        return true;
+    }
+
+    return false;
+  };
+}
+
+CommentsProcessor.prototype.escape = function (data) {
+  var tempData = [];
+  var nextStart = 0;
+  var nextEnd = 0;
+  var cursor = 0;
+  var indent = 0;
+  var breaksCount;
+  var lastBreakAt;
+  var newIndent;
+  var isQuotedAt = quoteScannerFor(data);
+  var saveWaypoints = this.saveWaypoints;
+
+  for (; nextEnd < data.length;) {
+    nextStart = data.indexOf(COMMENT_PREFIX, cursor);
+    if (nextStart == -1)
+      break;
+
+    if (isQuotedAt(nextStart)) {
+      tempData.push(data.substring(cursor, nextStart + COMMENT_PREFIX.length));
+      cursor = nextStart + COMMENT_PREFIX.length;
+      continue;
+    }
+
+    nextEnd = data.indexOf(COMMENT_SUFFIX, nextStart + COMMENT_PREFIX.length);
+    if (nextEnd == -1) {
+      this.context.warnings.push('Broken comment: \'' + data.substring(nextStart) + '\'.');
+      nextEnd = data.length - 2;
+    }
+
+    tempData.push(data.substring(cursor, nextStart));
+
+    var comment = data.substring(nextStart, nextEnd + COMMENT_SUFFIX.length);
+    var isSpecialComment = comment.indexOf(SPECIAL_COMMENT_PREFIX) === 0;
+
+    if (saveWaypoints) {
+      breaksCount = comment.split(lineBreak).length - 1;
+      lastBreakAt = comment.lastIndexOf(lineBreak);
+      newIndent = lastBreakAt > 0 ?
+        comment.substring(lastBreakAt + lineBreak.length).length :
+        indent + comment.length;
+    }
+
+    if (saveWaypoints || isSpecialComment) {
+      var metadata = saveWaypoints ? [breaksCount, newIndent] : null;
+      var placeholder = isSpecialComment ?
+        this.specialComments.store(comment, metadata) :
+        this.comments.store(comment, metadata);
+      tempData.push(placeholder);
+    }
+
+    if (saveWaypoints)
+      indent = newIndent + 1;
+    cursor = nextEnd + COMMENT_SUFFIX.length;
+  }
+
+  return tempData.length > 0 ?
+    tempData.join('') + data.substring(cursor, data.length) :
+    data;
+};
+
+function restore(context, data, from, isSpecial) {
+  var tempData = [];
+  var cursor = 0;
+
+  for (; cursor < data.length;) {
+    var nextMatch = from.nextMatch(data, cursor);
+    if (nextMatch.start < 0)
+      break;
+
+    tempData.push(data.substring(cursor, nextMatch.start));
+    var comment = from.restore(nextMatch.match);
+
+    if (isSpecial && (context.keepAll || (context.keepOne && context.restored === 0))) {
+      context.restored++;
+      tempData.push(comment);
+
+      cursor = nextMatch.end;
+    } else {
+      cursor = nextMatch.end + (context.keepBreaks && data.substring(nextMatch.end, nextMatch.end + lineBreak.length) == lineBreak ? lineBreak.length : 0);
+    }
+  }
+
+  return tempData.length > 0 ?
+    tempData.join('') + data.substring(cursor, data.length) :
+    data;
+}
+
+CommentsProcessor.prototype.restore = function (data) {
+  data = restore(this, data, this.comments, false);
+  data = restore(this, data, this.specialComments, true);
+  return data;
+};
+
+module.exports = CommentsProcessor;

node_modules/clean-css/lib/text/escape-store.js

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+var placeholderBrace = '__';
+
+function EscapeStore(placeholderRoot) {
+  this.placeholderRoot = 'ESCAPED_' + placeholderRoot + '_CLEAN_CSS';
+  this.placeholderToData = {};
+  this.dataToPlaceholder = {};
+  this.count = 0;
+  this.restoreMatcher = new RegExp(this.placeholderRoot + '(\\d+)');
+}
+
+EscapeStore.prototype._nextPlaceholder = function (metadata) {
+  return {
+    index: this.count,
+    value: placeholderBrace + this.placeholderRoot + this.count++ + metadata + placeholderBrace
+  };
+};
+
+EscapeStore.prototype.store = function (data, metadata) {
+  var encodedMetadata = metadata ?
+    '(' + metadata.join(',') + ')' :
+    '';
+  var placeholder = this.dataToPlaceholder[data];
+
+  if (!placeholder) {
+    var nextPlaceholder = this._nextPlaceholder(encodedMetadata);
+    placeholder = nextPlaceholder.value;
+    this.placeholderToData[nextPlaceholder.index] = data;
+    this.dataToPlaceholder[data] = nextPlaceholder.value;
+  }
+
+  if (metadata)
+    placeholder = placeholder.replace(/\([^\)]+\)/, encodedMetadata);
+
+  return placeholder;
+};
+
+EscapeStore.prototype.nextMatch = function (data, cursor) {
+  var next = {};
+
+  next.start = data.indexOf(this.placeholderRoot, cursor) - placeholderBrace.length;
+  next.end = data.indexOf(placeholderBrace, next.start + placeholderBrace.length) + placeholderBrace.length;
+  if (next.start > -1 && next.end > -1)
+    next.match = data.substring(next.start, next.end);
+
+  return next;
+};
+
+EscapeStore.prototype.restore = function (placeholder) {
+  var index = this.restoreMatcher.exec(placeholder)[1];
+  return this.placeholderToData[index];
+};
+
+module.exports = EscapeStore;

node_modules/clean-css/lib/text/expressions-processor.js

@@ -0,0 +1,117 @@
+var EscapeStore = require('./escape-store');
+
+var EXPRESSION_NAME = 'expression';
+var EXPRESSION_START = '(';
+var EXPRESSION_END = ')';
+var EXPRESSION_PREFIX = EXPRESSION_NAME + EXPRESSION_START;
+var BODY_START = '{';
+var BODY_END = '}';
+
+var lineBreak = require('os').EOL;
+
+function findEnd(data, start) {
+  var end = start + EXPRESSION_NAME.length;
+  var level = 0;
+  var quoted = false;
+  var braced = false;
+
+  while (true) {
+    var current = data[end++];
+
+    if (quoted) {
+      quoted = current != '\'' && current != '"';
+    } else {
+      quoted = current == '\'' || current == '"';
+
+      if (current == EXPRESSION_START)
+        level++;
+      if (current == EXPRESSION_END)
+        level--;
+      if (current == BODY_START)
+        braced = true;
+      if (current == BODY_END && !braced && level == 1) {
+        end--;
+        level--;
+      }
+    }
+
+    if (level === 0 && current == EXPRESSION_END)
+      break;
+    if (!current) {
+      end = data.substring(0, end).lastIndexOf(BODY_END);
+      break;
+    }
+  }
+
+  return end;
+}
+
+function ExpressionsProcessor(saveWaypoints) {
+  this.expressions = new EscapeStore('EXPRESSION');
+  this.saveWaypoints = saveWaypoints;
+}
+
+ExpressionsProcessor.prototype.escape = function (data) {
+  var nextStart = 0;
+  var nextEnd = 0;
+  var cursor = 0;
+  var tempData = [];
+  var indent = 0;
+  var breaksCount;
+  var lastBreakAt;
+  var newIndent;
+  var saveWaypoints = this.saveWaypoints;
+
+  for (; nextEnd < data.length;) {
+    nextStart = data.indexOf(EXPRESSION_PREFIX, nextEnd);
+    if (nextStart == -1)
+      break;
+
+    nextEnd = findEnd(data, nextStart);
+
+    var expression = data.substring(nextStart, nextEnd);
+    if (saveWaypoints) {
+      breaksCount = expression.split(lineBreak).length - 1;
+      lastBreakAt = expression.lastIndexOf(lineBreak);
+      newIndent = lastBreakAt > 0 ?
+        expression.substring(lastBreakAt + lineBreak.length).length :
+        indent + expression.length;
+    }
+
+    var metadata = saveWaypoints ? [breaksCount, newIndent] : null;
+    var placeholder = this.expressions.store(expression, metadata);
+    tempData.push(data.substring(cursor, nextStart));
+    tempData.push(placeholder);
+
+    if (saveWaypoints)
+      indent = newIndent + 1;
+    cursor = nextEnd;
+  }
+
+  return tempData.length > 0 ?
+    tempData.join('') + data.substring(cursor, data.length) :
+    data;
+};
+
+ExpressionsProcessor.prototype.restore = function (data) {
+  var tempData = [];
+  var cursor = 0;
+
+  for (; cursor < data.length;) {
+    var nextMatch = this.expressions.nextMatch(data, cursor);
+    if (nextMatch.start < 0)
+      break;
+
+    tempData.push(data.substring(cursor, nextMatch.start));
+    var comment = this.expressions.restore(nextMatch.match);
+    tempData.push(comment);
+
+    cursor = nextMatch.end;
+  }
+
+  return tempData.length > 0 ?
+    tempData.join('') + data.substring(cursor, data.length) :
+    data;
+};
+
+module.exports = ExpressionsProcessor;

node_modules/clean-css/lib/text/free-text-processor.js

@@ -0,0 +1,98 @@
+var EscapeStore = require('./escape-store');
+var QuoteScanner = require('../utils/quote-scanner');
+
+var lineBreak = require('os').EOL;
+
+function FreeTextProcessor(saveWaypoints) {
+  this.matches = new EscapeStore('FREE_TEXT');
+  this.saveWaypoints = saveWaypoints;
+}
+
+// Strip content tags by replacing them by the a special
+// marker for further restoring. It's done via string scanning
+// instead of regexps to speed up the process.
+FreeTextProcessor.prototype.escape = function (data) {
+  var self = this;
+  var breaksCount;
+  var lastBreakAt;
+  var indent;
+  var metadata;
+  var saveWaypoints = this.saveWaypoints;
+
+  return new QuoteScanner(data).each(function (match, store) {
+    if (saveWaypoints) {
+      breaksCount = match.split(lineBreak).length - 1;
+      lastBreakAt = match.lastIndexOf(lineBreak);
+      indent = lastBreakAt > 0 ?
+        match.substring(lastBreakAt + lineBreak.length).length :
+        match.length;
+      metadata = [breaksCount, indent];
+    }
+
+    var placeholder = self.matches.store(match, metadata);
+    store.push(placeholder);
+  });
+};
+
+function normalize(text, data, prefixContext, cursor) {
+  // FIXME: this is even a bigger hack now - see #407
+  var searchIn = data;
+  if (prefixContext) {
+    searchIn = prefixContext + data.substring(0, data.indexOf('__ESCAPED_FREE_TEXT_CLEAN_CSS'));
+    cursor = searchIn.length;
+  }
+
+  var lastSemicolon = searchIn.lastIndexOf(';', cursor);
+  var lastOpenBrace = searchIn.lastIndexOf('{', cursor);
+  var lastOne = 0;
+
+  if (lastSemicolon > -1 && lastOpenBrace > -1)
+    lastOne = Math.max(lastSemicolon, lastOpenBrace);
+  else if (lastSemicolon == -1)
+    lastOne = lastOpenBrace;
+  else
+    lastOne = lastSemicolon;
+
+  var context = searchIn.substring(lastOne + 1, cursor);
+
+  if (/\[[\w\d\-]+[\*\|\~\^\$]?=$/.test(context)) {
+    text = text
+      .replace(/\\\n|\\\r\n/g, '')
+      .replace(/\n|\r\n/g, '');
+  }
+
+  if (/^['"][a-zA-Z][a-zA-Z\d\-_]+['"]$/.test(text) && !/format\($/.test(context)) {
+    var isFont = /^(font|font\-family):/.test(context);
+    var isAttribute = /\[[\w\d\-]+[\*\|\~\^\$]?=$/.test(context);
+    var isKeyframe = /@(-moz-|-o-|-webkit-)?keyframes /.test(context);
+    var isAnimation = /^(-moz-|-o-|-webkit-)?animation(-name)?:/.test(context);
+
+    if (isFont || isAttribute || isKeyframe || isAnimation)
+      text = text.substring(1, text.length - 1);
+  }
+
+  return text;
+}
+
+FreeTextProcessor.prototype.restore = function (data, prefixContext) {
+  var tempData = [];
+  var cursor = 0;
+
+  for (; cursor < data.length;) {
+    var nextMatch = this.matches.nextMatch(data, cursor);
+    if (nextMatch.start < 0)
+      break;
+
+    tempData.push(data.substring(cursor, nextMatch.start));
+    var text = normalize(this.matches.restore(nextMatch.match), data, prefixContext, nextMatch.start);
+    tempData.push(text);
+
+    cursor = nextMatch.end;
+  }
+
+  return tempData.length > 0 ?
+    tempData.join('') + data.substring(cursor, data.length) :
+    data;
+};
+
+module.exports = FreeTextProcessor;

node_modules/clean-css/lib/text/urls-processor.js

@@ -0,0 +1,75 @@
+var EscapeStore = require('./escape-store');
+var reduceUrls = require('../urls/reduce');
+
+var lineBreak = require('os').EOL;
+
+function UrlsProcessor(context, saveWaypoints, keepUrlQuotes) {
+  this.urls = new EscapeStore('URL');
+  this.context = context;
+  this.saveWaypoints = saveWaypoints;
+  this.keepUrlQuotes = keepUrlQuotes;
+}
+
+// Strip urls by replacing them by a special
+// marker for further restoring. It's done via string scanning
+// instead of regexps to speed up the process.
+UrlsProcessor.prototype.escape = function (data) {
+  var breaksCount;
+  var lastBreakAt;
+  var indent;
+  var saveWaypoints = this.saveWaypoints;
+  var self = this;
+
+  return reduceUrls(data, this.context, function (url, tempData) {
+    if (saveWaypoints) {
+      breaksCount = url.split(lineBreak).length - 1;
+      lastBreakAt = url.lastIndexOf(lineBreak);
+      indent = lastBreakAt > 0 ?
+        url.substring(lastBreakAt + lineBreak.length).length :
+        url.length;
+    }
+
+    var placeholder = self.urls.store(url, saveWaypoints ? [breaksCount, indent] : null);
+    tempData.push(placeholder);
+  });
+};
+
+function normalize(url, keepUrlQuotes) {
+  url = url
+    .replace(/^url/gi, 'url')
+    .replace(/\\?\n|\\?\r\n/g, '')
+    .replace(/(\s{2,}|\s)/g, ' ')
+    .replace(/^url\((['"])? /, 'url($1')
+    .replace(/ (['"])?\)$/, '$1)');
+
+  if (/url\(".*'.*"\)/.test(url) || /url\('.*".*'\)/.test(url))
+    return url;
+
+  if (!keepUrlQuotes && !/^['"].+['"]$/.test(url) && !/url\(.*[\s\(\)].*\)/.test(url) && !/url\(['"]data:[^;]+;charset/.test(url))
+    url = url.replace(/["']/g, '');
+
+  return url;
+}
+
+UrlsProcessor.prototype.restore = function (data) {
+  var tempData = [];
+  var cursor = 0;
+
+  for (; cursor < data.length;) {
+    var nextMatch = this.urls.nextMatch(data, cursor);
+    if (nextMatch.start < 0)
+      break;
+
+    tempData.push(data.substring(cursor, nextMatch.start));
+    var url = normalize(this.urls.restore(nextMatch.match), this.keepUrlQuotes);
+    tempData.push(url);
+
+    cursor = nextMatch.end;
+  }
+
+  return tempData.length > 0 ?
+    tempData.join('') + data.substring(cursor, data.length) :
+    data;
+};
+
+module.exports = UrlsProcessor;