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node_modules/postcss-reduce-idents/dist/lib/counter-style.js 2.85 KB
aaac7fed   liuqimichale   add
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  "use strict";
  
  exports.__esModule = true;
  
  var _postcssValueParser = require("postcss-value-parser");
  
  var _postcssValueParser2 = _interopRequireDefault(_postcssValueParser);
  
  var _cache = require("./cache");
  
  var _cache2 = _interopRequireDefault(_cache);
  
  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  var RESERVED_KEYWORDS = ["unset", "initial", "inherit", "none", "inline", "outside", "disc", "circle", "square", "decimal", "cjk-decimal", "decimal-leading-zero", "lower-roman", "upper-roman", "lower-greek", "lower-alpha", "lower-latin", "upper-alpha", "upper-latin", "arabic-indic", "armenian", "bengali", "cambodian", "cjk-earthly-branch", "cjk-heavenly-stem", "cjk-ideographic", "devanagari", "ethiopic-numeric", "georgian", "gujarati", "gurmukhi", "hebrew", "hiragana", "hiragana-iroha", "japanese-formal", "japanese-informal", "kannada", "katakana", "katakana-iroha", "khmer", "korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal", "lao", "lower-armenian", "malayalam", "mongolian", "myanmar", "oriya", "persian", "simp-chinese-formal", "simp-chinese-informal", "tamil", "telugu", "thai", "tibetan", "trad-chinese-formal", "trad-chinese-informal", "upper-armenian", "disclosure-open", "disclosure-close"];
  
  var cache = {};
  var atRules = [];
  var decls = [];
  
  exports.default = {
      collect: function collect(node, encoder) {
          var name = node.name,
              prop = node.prop,
              type = node.type;
  
  
          if (type === 'atrule' && /counter-style/.test(name) && RESERVED_KEYWORDS.indexOf(node.params) === -1) {
              (0, _cache2.default)(node.params, encoder, cache);
              atRules.push(node);
          }
  
          if (type === 'decl' && /(list-style|system)/.test(prop)) {
              decls.push(node);
          }
      },
      transform: function transform() {
          // Iterate each property and change their names
          decls.forEach(function (decl) {
              decl.value = (0, _postcssValueParser2.default)(decl.value).walk(function (node) {
                  if (node.type === 'word' && node.value in cache) {
                      cache[node.value].count++;
                      node.value = cache[node.value].ident;
                  } else if (node.type === 'space') {
                      node.value = ' ';
                  } else if (node.type === 'div') {
                      node.before = node.after = '';
                  }
              }).toString();
          });
          // Iterate each at rule and change their name if references to them have been found
          atRules.forEach(function (rule) {
              var cached = cache[rule.params];
              if (cached && cached.count > 0) {
                  rule.params = cached.ident;
              }
          });
  
          // reset cache after transform
          cache = {};
          atRules = [];
          decls = [];
      }
  };
  module.exports = exports["default"];