node fixes, updates

1 files changed, 325 insertions, 0 deletions

diff --git a/node_modules/clean-css/lib/optimizer/level-1/optimize.js b/node_modules/clean-css/lib/optimizer/level-1/optimize.js
new file mode 100644
index 00000000..d0461e06
--- /dev/null
+++ b/node_modules/clean-css/lib/optimizer/level-1/optimize.js
@@ -0,0 +1,325 @@
+var sortSelectors = require('./sort-selectors');
+var tidyRules = require('./tidy-rules');
+var tidyBlock = require('./tidy-block');
+var tidyAtRule = require('./tidy-at-rule');
+
+var Hack = require('../hack');
+var removeUnused = require('../remove-unused');
+var restoreFromOptimizing = require('../restore-from-optimizing');
+var wrapForOptimizing = require('../wrap-for-optimizing').all;
+
+var configuration = require('../configuration');
+var optimizers = require('./value-optimizers');
+
+var OptimizationLevel = require('../../options/optimization-level').OptimizationLevel;
+
+var Token = require('../../tokenizer/token');
+var Marker = require('../../tokenizer/marker');
+
+var formatPosition = require('../../utils/format-position');
+
+var serializeRules = require('../../writer/one-time').rules;
+
+var CHARSET_TOKEN = '@charset';
+var CHARSET_REGEXP = new RegExp('^' + CHARSET_TOKEN, 'i');
+
+var DEFAULT_ROUNDING_PRECISION = require('../../options/rounding-precision').DEFAULT;
+
+var VARIABLE_PROPERTY_NAME_PATTERN = /^--\S+$/;
+var PROPERTY_NAME_PATTERN = /^(?:-chrome-|-[\w-]+\w|\w[\w-]+\w|\w{1,})$/;
+var IMPORT_PREFIX_PATTERN = /^@import/i;
+var URL_PREFIX_PATTERN = /^url\(/i;
+
+function startsAsUrl(value) {
+  return URL_PREFIX_PATTERN.test(value);
+}
+
+function isImport(token) {
+  return IMPORT_PREFIX_PATTERN.test(token[1]);
+}
+
+function isLegacyFilter(property) {
+  var value;
+
+  if (property.name == 'filter' || property.name == '-ms-filter') {
+    value = property.value[0][1];
+
+    return value.indexOf('progid') > -1
+      || value.indexOf('alpha') === 0
+      || value.indexOf('chroma') === 0;
+  }
+  return false;
+}
+
+function noop() {}
+
+function noopValueOptimizer(_name, value, _options) { return value; }
+
+function optimizeBody(rule, properties, context) {
+  var options = context.options;
+  var valueOptimizers;
+  var property, name, type, value;
+  var propertyToken;
+  var propertyOptimizer;
+  var serializedRule = serializeRules(rule);
+  var _properties = wrapForOptimizing(properties);
+  var pluginValueOptimizers = context.options.plugins.level1Value;
+  var pluginPropertyOptimizers = context.options.plugins.level1Property;
+  var isVariable;
+  var i, l;
+
+  for (i = 0, l = _properties.length; i < l; i++) {
+    var j, k, m, n;
+
+    property = _properties[i];
+    name = property.name;
+    propertyOptimizer = configuration[name] && configuration[name].propertyOptimizer || noop;
+    valueOptimizers = configuration[name] && configuration[name].valueOptimizers || [optimizers.whiteSpace];
+    isVariable = VARIABLE_PROPERTY_NAME_PATTERN.test(name);
+
+    if (isVariable) {
+      valueOptimizers = options.variableOptimizers.length > 0
+        ? options.variableOptimizers
+        : [optimizers.whiteSpace];
+    }
+
+    if (!isVariable && !PROPERTY_NAME_PATTERN.test(name)) {
+      propertyToken = property.all[property.position];
+      context.warnings.push('Invalid property name \'' + name + '\' at ' + formatPosition(propertyToken[1][2][0]) + '. Ignoring.');
+      property.unused = true;
+      continue;
+    }
+
+    if (property.value.length === 0) {
+      propertyToken = property.all[property.position];
+      context.warnings.push('Empty property \'' + name + '\' at ' + formatPosition(propertyToken[1][2][0]) + '. Ignoring.');
+      property.unused = true;
+      continue;
+    }
+
+    if (property.hack && (
+      (property.hack[0] == Hack.ASTERISK || property.hack[0] == Hack.UNDERSCORE)
+        && !options.compatibility.properties.iePrefixHack
+        || property.hack[0] == Hack.BACKSLASH && !options.compatibility.properties.ieSuffixHack
+        || property.hack[0] == Hack.BANG && !options.compatibility.properties.ieBangHack)) {
+      property.unused = true;
+      continue;
+    }
+
+    if (!options.compatibility.properties.ieFilters && isLegacyFilter(property)) {
+      property.unused = true;
+      continue;
+    }
+
+    if (property.block) {
+      optimizeBody(rule, property.value[0][1], context);
+      continue;
+    }
+
+    for (j = 0, m = property.value.length; j < m; j++) {
+      type = property.value[j][0];
+      value = property.value[j][1];
+
+      if (type == Token.PROPERTY_BLOCK) {
+        property.unused = true;
+        context.warnings.push('Invalid value token at ' + formatPosition(value[0][1][2][0]) + '. Ignoring.');
+        break;
+      }
+
+      if (startsAsUrl(value) && !context.validator.isUrl(value)) {
+        property.unused = true;
+        context.warnings.push('Broken URL \'' + value + '\' at ' + formatPosition(property.value[j][2][0]) + '. Ignoring.');
+        break;
+      }
+
+      for (k = 0, n = valueOptimizers.length; k < n; k++) {
+        value = valueOptimizers[k](name, value, options);
+      }
+
+      for (k = 0, n = pluginValueOptimizers.length; k < n; k++) {
+        value = pluginValueOptimizers[k](name, value, options);
+      }
+
+      property.value[j][1] = value;
+    }
+
+    propertyOptimizer(serializedRule, property, options);
+
+    for (j = 0, m = pluginPropertyOptimizers.length; j < m; j++) {
+      pluginPropertyOptimizers[j](serializedRule, property, options);
+    }
+  }
+
+  restoreFromOptimizing(_properties);
+  removeUnused(_properties);
+  removeComments(properties, options);
+}
+
+function removeComments(tokens, options) {
+  var token;
+  var i;
+
+  for (i = 0; i < tokens.length; i++) {
+    token = tokens[i];
+
+    if (token[0] != Token.COMMENT) {
+      continue;
+    }
+
+    optimizeComment(token, options);
+
+    if (token[1].length === 0) {
+      tokens.splice(i, 1);
+      i--;
+    }
+  }
+}
+
+function optimizeComment(token, options) {
+  if (token[1][2] == Marker.EXCLAMATION && (options.level[OptimizationLevel.One].specialComments == 'all' || options.commentsKept < options.level[OptimizationLevel.One].specialComments)) {
+    options.commentsKept++;
+    return;
+  }
+
+  token[1] = [];
+}
+
+function cleanupCharsets(tokens) {
+  var hasCharset = false;
+
+  for (var i = 0, l = tokens.length; i < l; i++) {
+    var token = tokens[i];
+
+    if (token[0] != Token.AT_RULE) { continue; }
+
+    if (!CHARSET_REGEXP.test(token[1])) { continue; }
+
+    if (hasCharset || token[1].indexOf(CHARSET_TOKEN) == -1) {
+      tokens.splice(i, 1);
+      i--;
+      l--;
+    } else {
+      hasCharset = true;
+      tokens.splice(i, 1);
+      tokens.unshift([Token.AT_RULE, token[1].replace(CHARSET_REGEXP, CHARSET_TOKEN)]);
+    }
+  }
+}
+
+function buildUnitRegexp(options) {
+  var units = ['px', 'em', 'ex', 'cm', 'mm', 'in', 'pt', 'pc', '%'];
+  var otherUnits = ['ch', 'rem', 'vh', 'vm', 'vmax', 'vmin', 'vw'];
+
+  otherUnits.forEach(function(unit) {
+    if (options.compatibility.units[unit]) {
+      units.push(unit);
+    }
+  });
+
+  return new RegExp('(^|\\s|\\(|,)0(?:' + units.join('|') + ')(\\W|$)', 'g');
+}
+
+function buildPrecisionOptions(roundingPrecision) {
+  var precisionOptions = {
+    matcher: null,
+    units: {}
+  };
+  var optimizable = [];
+  var unit;
+  var value;
+
+  for (unit in roundingPrecision) {
+    value = roundingPrecision[unit];
+
+    if (value != DEFAULT_ROUNDING_PRECISION) {
+      precisionOptions.units[unit] = {};
+      precisionOptions.units[unit].value = value;
+      precisionOptions.units[unit].multiplier = 10 ** value;
+
+      optimizable.push(unit);
+    }
+  }
+
+  if (optimizable.length > 0) {
+    precisionOptions.enabled = true;
+    precisionOptions.decimalPointMatcher = new RegExp('(\\d)\\.($|' + optimizable.join('|') + ')($|\\W)', 'g');
+    precisionOptions.zeroMatcher = new RegExp('(\\d*)(\\.\\d+)(' + optimizable.join('|') + ')', 'g');
+  }
+
+  return precisionOptions;
+}
+
+function buildVariableOptimizers(options) {
+  return options.level[OptimizationLevel.One].variableValueOptimizers.map(function(optimizer) {
+    if (typeof (optimizer) == 'string') {
+      return optimizers[optimizer] || noopValueOptimizer;
+    }
+
+    return optimizer;
+  });
+}
+
+function level1Optimize(tokens, context) {
+  var options = context.options;
+  var levelOptions = options.level[OptimizationLevel.One];
+  var ie7Hack = options.compatibility.selectors.ie7Hack;
+  var adjacentSpace = options.compatibility.selectors.adjacentSpace;
+  var spaceAfterClosingBrace = options.compatibility.properties.spaceAfterClosingBrace;
+  var format = options.format;
+  var mayHaveCharset = false;
+  var afterRules = false;
+
+  options.unitsRegexp = options.unitsRegexp || buildUnitRegexp(options);
+  options.precision = options.precision || buildPrecisionOptions(levelOptions.roundingPrecision);
+  options.commentsKept = options.commentsKept || 0;
+  options.variableOptimizers = options.variableOptimizers || buildVariableOptimizers(options);
+
+  for (var i = 0, l = tokens.length; i < l; i++) {
+    var token = tokens[i];
+
+    switch (token[0]) {
+    case Token.AT_RULE:
+      token[1] = isImport(token) && afterRules ? '' : token[1];
+      token[1] = levelOptions.tidyAtRules ? tidyAtRule(token[1]) : token[1];
+      mayHaveCharset = true;
+      break;
+    case Token.AT_RULE_BLOCK:
+      optimizeBody(token[1], token[2], context);
+      afterRules = true;
+      break;
+    case Token.NESTED_BLOCK:
+      token[1] = levelOptions.tidyBlockScopes ? tidyBlock(token[1], spaceAfterClosingBrace) : token[1];
+      level1Optimize(token[2], context);
+      afterRules = true;
+      break;
+    case Token.COMMENT:
+      optimizeComment(token, options);
+      break;
+    case Token.RULE:
+      token[1] = levelOptions.tidySelectors
+        ? tidyRules(token[1], !ie7Hack, adjacentSpace, format, context.warnings)
+        : token[1];
+      token[1] = token[1].length > 1 ? sortSelectors(token[1], levelOptions.selectorsSortingMethod) : token[1];
+      optimizeBody(token[1], token[2], context);
+      afterRules = true;
+      break;
+    }
+
+    if (token[0] == Token.COMMENT
+      && token[1].length === 0
+      || levelOptions.removeEmpty
+      && (token[1].length === 0 || (token[2] && token[2].length === 0))) {
+      tokens.splice(i, 1);
+      i--;
+      l--;
+    }
+  }
+
+  if (levelOptions.cleanupCharsets && mayHaveCharset) {
+    cleanupCharsets(tokens);
+  }
+
+  return tokens;
+}
+
+module.exports = level1Optimize;