text: // CodeMirror, copyright (c) by Marijn Haverbeke and others
  // Distributed under an MIT license: https://codemirror.net/LICENSE
  
  (function(mod) {
    if (typeof exports == "object" && typeof module == "object") // CommonJS
      mod(require("../../lib/codemirror"), require("../../mode/css/css"));
    else if (typeof define == "function" && define.amd) // AMD
      define(["../../lib/codemirror", "../../mode/css/css"], mod);
    else // Plain browser env
      mod(CodeMirror);
  })(function(CodeMirror) {
    "use strict";
  
    var pseudoClasses = {"active":"When Active", "after":1, "before":1, "checked":1, "default":1, 
      "disabled":1, "empty":1, "enabled":1, "first-child":1, "first-letter":1, 
      "first-line":1, "first-of-type":1, "focus":1, "hover":1, "in-range":1, 
      "indeterminate":1, "invalid":1, "lang(language)":1, "last-child":1, "last-of-type":1, 
      "link":1, "not(selector)":1, "nth-child(n)":1, "nth-last-child(n)":1, "nth-last-of-type(n)":1, 
      "nth-of-type(n)":1, "only-of-type":1, "only-child":1, "optional":1, "out-of-range":1, 
      "placeholder":1, "read-only":1, "read-write":1, "required":1, "root":1, 
      "selection":1, "target":1, "valid":1, "visited":1  
    };
  
    CodeMirror.registerHelper("hint", "css", function(cm) {
      var cur = cm.getCursor(), token = cm.getTokenAt(cur);
      var inner = CodeMirror.innerMode(cm.getMode(), token.state);
      if (inner.mode.name != "css") return;
  
      if (token.type == "keyword" && "!important".indexOf(token.string) == 0)
        return {list: ["!important"], from: CodeMirror.Pos(cur.line, token.start),
                to: CodeMirror.Pos(cur.line, token.end)};
  
      var start = token.start, end = cur.ch, word = token.string.slice(0, end - start);
      if (/[^\w$_-]/.test(word)) {
        word = ""; start = end = cur.ch;
      }
  
      var spec = CodeMirror.resolveMode("text/css");
  
      var result = [];
      function add(keywords) {
        for (var name in keywords)
          if (!word || name.lastIndexOf(word, 0) == 0)
            result.push(name);
      }
  
      var st = inner.state.state;
      if (st == "pseudo" || token.type == "variable-3") {
        add(pseudoClasses);
      } else if (st == "block" || st == "maybeprop") {
        add(spec.propertyKeywords);
      } else if (st == "prop" || st == "parens" || st == "at" || st == "params") {
        add(spec.valueKeywords);
        add(spec.colorKeywords);
      } else if (st == "media" || st == "media_parens") {
        add(spec.mediaTypes);
        add(spec.mediaFeatures);
      }
  
      if (result.length) return {
        list: result,
        from: CodeMirror.Pos(cur.line, start),
        to: CodeMirror.Pos(cur.line, end)
      };
    });
  });
  