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1
// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: http://codemirror.net/LICENSE
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// TODO actually recognize syntax of TypeScript constructs
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(function(mod) {
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  if (typeof exports == "object" && typeof module == "object") // CommonJS
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    mod(require("../../lib/codemirror"));
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  else if (typeof define == "function" && define.amd) // AMD
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    define(["../../lib/codemirror"], mod);
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  else // Plain browser env
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    mod(CodeMirror);
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})(function(CodeMirror) {
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"use strict";
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CodeMirror.defineMode("javascript", function(config, parserConfig) {
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  var indentUnit = config.indentUnit;
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  var statementIndent = parserConfig.statementIndent;
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  var jsonldMode = parserConfig.jsonld;
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  var jsonMode = parserConfig.json || jsonldMode;
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  var isTS = parserConfig.typescript;
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  var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
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  // Tokenizer
25

    
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  var keywords = function(){
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    function kw(type) {return {type: type, style: "keyword"};}
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    var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
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    var operator = kw("operator"), atom = {type: "atom", style: "atom"};
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    var jsKeywords = {
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      "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
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      "return": C, "break": C, "continue": C, "new": C, "delete": C, "throw": C, "debugger": C,
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      "var": kw("var"), "const": kw("var"), "let": kw("var"),
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      "function": kw("function"), "catch": kw("catch"),
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      "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
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      "in": operator, "typeof": operator, "instanceof": operator,
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      "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
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      "this": kw("this"), "module": kw("module"), "class": kw("class"), "super": kw("atom"),
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      "yield": C, "export": kw("export"), "import": kw("import"), "extends": C
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    };
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    // Extend the 'normal' keywords with the TypeScript language extensions
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    if (isTS) {
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      var type = {type: "variable", style: "variable-3"};
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      var tsKeywords = {
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        // object-like things
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        "interface": kw("interface"),
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        "extends": kw("extends"),
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        "constructor": kw("constructor"),
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        // scope modifiers
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        "public": kw("public"),
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        "private": kw("private"),
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        "protected": kw("protected"),
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        "static": kw("static"),
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        // types
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        "string": type, "number": type, "bool": type, "any": type
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      };
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      for (var attr in tsKeywords) {
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        jsKeywords[attr] = tsKeywords[attr];
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      }
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    }
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    return jsKeywords;
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  }();
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  var isOperatorChar = /[+\-*&%=<>!?|~^]/;
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  var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
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  function readRegexp(stream) {
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    var escaped = false, next, inSet = false;
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    while ((next = stream.next()) != null) {
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      if (!escaped) {
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        if (next == "/" && !inSet) return;
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        if (next == "[") inSet = true;
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        else if (inSet && next == "]") inSet = false;
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      }
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      escaped = !escaped && next == "\\";
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    }
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  }
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  // Used as scratch variables to communicate multiple values without
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  // consing up tons of objects.
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  var type, content;
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  function ret(tp, style, cont) {
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    type = tp; content = cont;
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    return style;
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  }
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  function tokenBase(stream, state) {
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    var ch = stream.next();
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    if (ch == '"' || ch == "'") {
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      state.tokenize = tokenString(ch);
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      return state.tokenize(stream, state);
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    } else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) {
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      return ret("number", "number");
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    } else if (ch == "." && stream.match("..")) {
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      return ret("spread", "meta");
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    } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
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      return ret(ch);
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    } else if (ch == "=" && stream.eat(">")) {
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      return ret("=>", "operator");
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    } else if (ch == "0" && stream.eat(/x/i)) {
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      stream.eatWhile(/[\da-f]/i);
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      return ret("number", "number");
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    } else if (/\d/.test(ch)) {
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      stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
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      return ret("number", "number");
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    } else if (ch == "/") {
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      if (stream.eat("*")) {
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        state.tokenize = tokenComment;
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        return tokenComment(stream, state);
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      } else if (stream.eat("/")) {
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        stream.skipToEnd();
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        return ret("comment", "comment");
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      } else if (state.lastType == "operator" || state.lastType == "keyword c" ||
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               state.lastType == "sof" || /^[\[{}\(,;:]$/.test(state.lastType)) {
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        readRegexp(stream);
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        stream.match(/^\b(([gimyu])(?![gimyu]*\2))+\b/);
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        return ret("regexp", "string-2");
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      } else {
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        stream.eatWhile(isOperatorChar);
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        return ret("operator", "operator", stream.current());
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      }
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    } else if (ch == "`") {
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      state.tokenize = tokenQuasi;
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      return tokenQuasi(stream, state);
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    } else if (ch == "#") {
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      stream.skipToEnd();
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      return ret("error", "error");
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    } else if (isOperatorChar.test(ch)) {
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      stream.eatWhile(isOperatorChar);
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      return ret("operator", "operator", stream.current());
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    } else if (wordRE.test(ch)) {
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      stream.eatWhile(wordRE);
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      var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
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      return (known && state.lastType != ".") ? ret(known.type, known.style, word) :
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                     ret("variable", "variable", word);
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    }
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  }
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  function tokenString(quote) {
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    return function(stream, state) {
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      var escaped = false, next;
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      if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){
148
        state.tokenize = tokenBase;
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        return ret("jsonld-keyword", "meta");
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      }
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      while ((next = stream.next()) != null) {
152
        if (next == quote && !escaped) break;
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        escaped = !escaped && next == "\\";
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      }
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      if (!escaped) state.tokenize = tokenBase;
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      return ret("string", "string");
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    };
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  }
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  function tokenComment(stream, state) {
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    var maybeEnd = false, ch;
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    while (ch = stream.next()) {
163
      if (ch == "/" && maybeEnd) {
164
        state.tokenize = tokenBase;
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        break;
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      }
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      maybeEnd = (ch == "*");
168
    }
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    return ret("comment", "comment");
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  }
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  function tokenQuasi(stream, state) {
173
    var escaped = false, next;
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    while ((next = stream.next()) != null) {
175
      if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) {
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        state.tokenize = tokenBase;
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        break;
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      }
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      escaped = !escaped && next == "\\";
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    }
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    return ret("quasi", "string-2", stream.current());
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  }
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  var brackets = "([{}])";
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  // This is a crude lookahead trick to try and notice that we're
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  // parsing the argument patterns for a fat-arrow function before we
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  // actually hit the arrow token. It only works if the arrow is on
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  // the same line as the arguments and there's no strange noise
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  // (comments) in between. Fallback is to only notice when we hit the
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  // arrow, and not declare the arguments as locals for the arrow
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  // body.
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  function findFatArrow(stream, state) {
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    if (state.fatArrowAt) state.fatArrowAt = null;
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    var arrow = stream.string.indexOf("=>", stream.start);
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    if (arrow < 0) return;
196

    
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    var depth = 0, sawSomething = false;
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    for (var pos = arrow - 1; pos >= 0; --pos) {
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      var ch = stream.string.charAt(pos);
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      var bracket = brackets.indexOf(ch);
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      if (bracket >= 0 && bracket < 3) {
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        if (!depth) { ++pos; break; }
203
        if (--depth == 0) break;
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      } else if (bracket >= 3 && bracket < 6) {
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        ++depth;
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      } else if (wordRE.test(ch)) {
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        sawSomething = true;
208
      } else if (/["'\/]/.test(ch)) {
209
        return;
210
      } else if (sawSomething && !depth) {
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        ++pos;
212
        break;
213
      }
214
    }
215
    if (sawSomething && !depth) state.fatArrowAt = pos;
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  }
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  // Parser
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220
  var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true};
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  function JSLexical(indented, column, type, align, prev, info) {
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    this.indented = indented;
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    this.column = column;
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    this.type = type;
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    this.prev = prev;
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    this.info = info;
228
    if (align != null) this.align = align;
229
  }
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231
  function inScope(state, varname) {
232
    for (var v = state.localVars; v; v = v.next)
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      if (v.name == varname) return true;
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    for (var cx = state.context; cx; cx = cx.prev) {
235
      for (var v = cx.vars; v; v = v.next)
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        if (v.name == varname) return true;
237
    }
238
  }
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240
  function parseJS(state, style, type, content, stream) {
241
    var cc = state.cc;
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    // Communicate our context to the combinators.
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    // (Less wasteful than consing up a hundred closures on every call.)
244
    cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;
245

    
246
    if (!state.lexical.hasOwnProperty("align"))
247
      state.lexical.align = true;
248

    
249
    while(true) {
250
      var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
251
      if (combinator(type, content)) {
252
        while(cc.length && cc[cc.length - 1].lex)
253
          cc.pop()();
254
        if (cx.marked) return cx.marked;
255
        if (type == "variable" && inScope(state, content)) return "variable-2";
256
        return style;
257
      }
258
    }
259
  }
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261
  // Combinator utils
262

    
263
  var cx = {state: null, column: null, marked: null, cc: null};
264
  function pass() {
265
    for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
266
  }
267
  function cont() {
268
    pass.apply(null, arguments);
269
    return true;
270
  }
271
  function register(varname) {
272
    function inList(list) {
273
      for (var v = list; v; v = v.next)
274
        if (v.name == varname) return true;
275
      return false;
276
    }
277
    var state = cx.state;
278
    if (state.context) {
279
      cx.marked = "def";
280
      if (inList(state.localVars)) return;
281
      state.localVars = {name: varname, next: state.localVars};
282
    } else {
283
      if (inList(state.globalVars)) return;
284
      if (parserConfig.globalVars)
285
        state.globalVars = {name: varname, next: state.globalVars};
286
    }
287
  }
288

    
289
  // Combinators
290

    
291
  var defaultVars = {name: "this", next: {name: "arguments"}};
292
  function pushcontext() {
293
    cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
294
    cx.state.localVars = defaultVars;
295
  }
296
  function popcontext() {
297
    cx.state.localVars = cx.state.context.vars;
298
    cx.state.context = cx.state.context.prev;
299
  }
300
  function pushlex(type, info) {
301
    var result = function() {
302
      var state = cx.state, indent = state.indented;
303
      if (state.lexical.type == "stat") indent = state.lexical.indented;
304
      else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev)
305
        indent = outer.indented;
306
      state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
307
    };
308
    result.lex = true;
309
    return result;
310
  }
311
  function poplex() {
312
    var state = cx.state;
313
    if (state.lexical.prev) {
314
      if (state.lexical.type == ")")
315
        state.indented = state.lexical.indented;
316
      state.lexical = state.lexical.prev;
317
    }
318
  }
319
  poplex.lex = true;
320

    
321
  function expect(wanted) {
322
    function exp(type) {
323
      if (type == wanted) return cont();
324
      else if (wanted == ";") return pass();
325
      else return cont(exp);
326
    };
327
    return exp;
328
  }
329

    
330
  function statement(type, value) {
331
    if (type == "var") return cont(pushlex("vardef", value.length), vardef, expect(";"), poplex);
332
    if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
333
    if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
334
    if (type == "{") return cont(pushlex("}"), block, poplex);
335
    if (type == ";") return cont();
336
    if (type == "if") {
337
      if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex)
338
        cx.state.cc.pop()();
339
      return cont(pushlex("form"), expression, statement, poplex, maybeelse);
340
    }
341
    if (type == "function") return cont(functiondef);
342
    if (type == "for") return cont(pushlex("form"), forspec, statement, poplex);
343
    if (type == "variable") return cont(pushlex("stat"), maybelabel);
344
    if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"),
345
                                      block, poplex, poplex);
346
    if (type == "case") return cont(expression, expect(":"));
347
    if (type == "default") return cont(expect(":"));
348
    if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
349
                                     statement, poplex, popcontext);
350
    if (type == "module") return cont(pushlex("form"), pushcontext, afterModule, popcontext, poplex);
351
    if (type == "class") return cont(pushlex("form"), className, poplex);
352
    if (type == "export") return cont(pushlex("form"), afterExport, poplex);
353
    if (type == "import") return cont(pushlex("form"), afterImport, poplex);
354
    return pass(pushlex("stat"), expression, expect(";"), poplex);
355
  }
356
  function expression(type) {
357
    return expressionInner(type, false);
358
  }
359
  function expressionNoComma(type) {
360
    return expressionInner(type, true);
361
  }
362
  function expressionInner(type, noComma) {
363
    if (cx.state.fatArrowAt == cx.stream.start) {
364
      var body = noComma ? arrowBodyNoComma : arrowBody;
365
      if (type == "(") return cont(pushcontext, pushlex(")"), commasep(pattern, ")"), poplex, expect("=>"), body, popcontext);
366
      else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
367
    }
368

    
369
    var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
370
    if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
371
    if (type == "function") return cont(functiondef, maybeop);
372
    if (type == "keyword c") return cont(noComma ? maybeexpressionNoComma : maybeexpression);
373
    if (type == "(") return cont(pushlex(")"), maybeexpression, comprehension, expect(")"), poplex, maybeop);
374
    if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
375
    if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
376
    if (type == "{") return contCommasep(objprop, "}", null, maybeop);
377
    if (type == "quasi") { return pass(quasi, maybeop); }
378
    return cont();
379
  }
380
  function maybeexpression(type) {
381
    if (type.match(/[;\}\)\],]/)) return pass();
382
    return pass(expression);
383
  }
384
  function maybeexpressionNoComma(type) {
385
    if (type.match(/[;\}\)\],]/)) return pass();
386
    return pass(expressionNoComma);
387
  }
388

    
389
  function maybeoperatorComma(type, value) {
390
    if (type == ",") return cont(expression);
391
    return maybeoperatorNoComma(type, value, false);
392
  }
393
  function maybeoperatorNoComma(type, value, noComma) {
394
    var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
395
    var expr = noComma == false ? expression : expressionNoComma;
396
    if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
397
    if (type == "operator") {
398
      if (/\+\+|--/.test(value)) return cont(me);
399
      if (value == "?") return cont(expression, expect(":"), expr);
400
      return cont(expr);
401
    }
402
    if (type == "quasi") { return pass(quasi, me); }
403
    if (type == ";") return;
404
    if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
405
    if (type == ".") return cont(property, me);
406
    if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
407
  }
408
  function quasi(type, value) {
409
    if (type != "quasi") return pass();
410
    if (value.slice(value.length - 2) != "${") return cont(quasi);
411
    return cont(expression, continueQuasi);
412
  }
413
  function continueQuasi(type) {
414
    if (type == "}") {
415
      cx.marked = "string-2";
416
      cx.state.tokenize = tokenQuasi;
417
      return cont(quasi);
418
    }
419
  }
420
  function arrowBody(type) {
421
    findFatArrow(cx.stream, cx.state);
422
    return pass(type == "{" ? statement : expression);
423
  }
424
  function arrowBodyNoComma(type) {
425
    findFatArrow(cx.stream, cx.state);
426
    return pass(type == "{" ? statement : expressionNoComma);
427
  }
428
  function maybelabel(type) {
429
    if (type == ":") return cont(poplex, statement);
430
    return pass(maybeoperatorComma, expect(";"), poplex);
431
  }
432
  function property(type) {
433
    if (type == "variable") {cx.marked = "property"; return cont();}
434
  }
435
  function objprop(type, value) {
436
    if (type == "variable" || cx.style == "keyword") {
437
      cx.marked = "property";
438
      if (value == "get" || value == "set") return cont(getterSetter);
439
      return cont(afterprop);
440
    } else if (type == "number" || type == "string") {
441
      cx.marked = jsonldMode ? "property" : (cx.style + " property");
442
      return cont(afterprop);
443
    } else if (type == "jsonld-keyword") {
444
      return cont(afterprop);
445
    } else if (type == "[") {
446
      return cont(expression, expect("]"), afterprop);
447
    }
448
  }
449
  function getterSetter(type) {
450
    if (type != "variable") return pass(afterprop);
451
    cx.marked = "property";
452
    return cont(functiondef);
453
  }
454
  function afterprop(type) {
455
    if (type == ":") return cont(expressionNoComma);
456
    if (type == "(") return pass(functiondef);
457
  }
458
  function commasep(what, end) {
459
    function proceed(type) {
460
      if (type == ",") {
461
        var lex = cx.state.lexical;
462
        if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
463
        return cont(what, proceed);
464
      }
465
      if (type == end) return cont();
466
      return cont(expect(end));
467
    }
468
    return function(type) {
469
      if (type == end) return cont();
470
      return pass(what, proceed);
471
    };
472
  }
473
  function contCommasep(what, end, info) {
474
    for (var i = 3; i < arguments.length; i++)
475
      cx.cc.push(arguments[i]);
476
    return cont(pushlex(end, info), commasep(what, end), poplex);
477
  }
478
  function block(type) {
479
    if (type == "}") return cont();
480
    return pass(statement, block);
481
  }
482
  function maybetype(type) {
483
    if (isTS && type == ":") return cont(typedef);
484
  }
485
  function typedef(type) {
486
    if (type == "variable"){cx.marked = "variable-3"; return cont();}
487
  }
488
  function vardef() {
489
    return pass(pattern, maybetype, maybeAssign, vardefCont);
490
  }
491
  function pattern(type, value) {
492
    if (type == "variable") { register(value); return cont(); }
493
    if (type == "[") return contCommasep(pattern, "]");
494
    if (type == "{") return contCommasep(proppattern, "}");
495
  }
496
  function proppattern(type, value) {
497
    if (type == "variable" && !cx.stream.match(/^\s*:/, false)) {
498
      register(value);
499
      return cont(maybeAssign);
500
    }
501
    if (type == "variable") cx.marked = "property";
502
    return cont(expect(":"), pattern, maybeAssign);
503
  }
504
  function maybeAssign(_type, value) {
505
    if (value == "=") return cont(expressionNoComma);
506
  }
507
  function vardefCont(type) {
508
    if (type == ",") return cont(vardef);
509
  }
510
  function maybeelse(type, value) {
511
    if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex);
512
  }
513
  function forspec(type) {
514
    if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex);
515
  }
516
  function forspec1(type) {
517
    if (type == "var") return cont(vardef, expect(";"), forspec2);
518
    if (type == ";") return cont(forspec2);
519
    if (type == "variable") return cont(formaybeinof);
520
    return pass(expression, expect(";"), forspec2);
521
  }
522
  function formaybeinof(_type, value) {
523
    if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
524
    return cont(maybeoperatorComma, forspec2);
525
  }
526
  function forspec2(type, value) {
527
    if (type == ";") return cont(forspec3);
528
    if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
529
    return pass(expression, expect(";"), forspec3);
530
  }
531
  function forspec3(type) {
532
    if (type != ")") cont(expression);
533
  }
534
  function functiondef(type, value) {
535
    if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
536
    if (type == "variable") {register(value); return cont(functiondef);}
537
    if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, statement, popcontext);
538
  }
539
  function funarg(type) {
540
    if (type == "spread") return cont(funarg);
541
    return pass(pattern, maybetype);
542
  }
543
  function className(type, value) {
544
    if (type == "variable") {register(value); return cont(classNameAfter);}
545
  }
546
  function classNameAfter(type, value) {
547
    if (value == "extends") return cont(expression, classNameAfter);
548
    if (type == "{") return cont(pushlex("}"), classBody, poplex);
549
  }
550
  function classBody(type, value) {
551
    if (type == "variable" || cx.style == "keyword") {
552
      cx.marked = "property";
553
      if (value == "get" || value == "set") return cont(classGetterSetter, functiondef, classBody);
554
      return cont(functiondef, classBody);
555
    }
556
    if (value == "*") {
557
      cx.marked = "keyword";
558
      return cont(classBody);
559
    }
560
    if (type == ";") return cont(classBody);
561
    if (type == "}") return cont();
562
  }
563
  function classGetterSetter(type) {
564
    if (type != "variable") return pass();
565
    cx.marked = "property";
566
    return cont();
567
  }
568
  function afterModule(type, value) {
569
    if (type == "string") return cont(statement);
570
    if (type == "variable") { register(value); return cont(maybeFrom); }
571
  }
572
  function afterExport(_type, value) {
573
    if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
574
    if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
575
    return pass(statement);
576
  }
577
  function afterImport(type) {
578
    if (type == "string") return cont();
579
    return pass(importSpec, maybeFrom);
580
  }
581
  function importSpec(type, value) {
582
    if (type == "{") return contCommasep(importSpec, "}");
583
    if (type == "variable") register(value);
584
    return cont();
585
  }
586
  function maybeFrom(_type, value) {
587
    if (value == "from") { cx.marked = "keyword"; return cont(expression); }
588
  }
589
  function arrayLiteral(type) {
590
    if (type == "]") return cont();
591
    return pass(expressionNoComma, maybeArrayComprehension);
592
  }
593
  function maybeArrayComprehension(type) {
594
    if (type == "for") return pass(comprehension, expect("]"));
595
    if (type == ",") return cont(commasep(maybeexpressionNoComma, "]"));
596
    return pass(commasep(expressionNoComma, "]"));
597
  }
598
  function comprehension(type) {
599
    if (type == "for") return cont(forspec, comprehension);
600
    if (type == "if") return cont(expression, comprehension);
601
  }
602

    
603
  function isContinuedStatement(state, textAfter) {
604
    return state.lastType == "operator" || state.lastType == "," ||
605
      isOperatorChar.test(textAfter.charAt(0)) ||
606
      /[,.]/.test(textAfter.charAt(0));
607
  }
608

    
609
  // Interface
610

    
611
  return {
612
    startState: function(basecolumn) {
613
      var state = {
614
        tokenize: tokenBase,
615
        lastType: "sof",
616
        cc: [],
617
        lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
618
        localVars: parserConfig.localVars,
619
        context: parserConfig.localVars && {vars: parserConfig.localVars},
620
        indented: 0
621
      };
622
      if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
623
        state.globalVars = parserConfig.globalVars;
624
      return state;
625
    },
626

    
627
    token: function(stream, state) {
628
      if (stream.sol()) {
629
        if (!state.lexical.hasOwnProperty("align"))
630
          state.lexical.align = false;
631
        state.indented = stream.indentation();
632
        findFatArrow(stream, state);
633
      }
634
      if (state.tokenize != tokenComment && stream.eatSpace()) return null;
635
      var style = state.tokenize(stream, state);
636
      if (type == "comment") return style;
637
      state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
638
      return parseJS(state, style, type, content, stream);
639
    },
640

    
641
    indent: function(state, textAfter) {
642
      if (state.tokenize == tokenComment) return CodeMirror.Pass;
643
      if (state.tokenize != tokenBase) return 0;
644
      var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical;
645
      // Kludge to prevent 'maybelse' from blocking lexical scope pops
646
      if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {
647
        var c = state.cc[i];
648
        if (c == poplex) lexical = lexical.prev;
649
        else if (c != maybeelse) break;
650
      }
651
      if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev;
652
      if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
653
        lexical = lexical.prev;
654
      var type = lexical.type, closing = firstChar == type;
655

    
656
      if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info + 1 : 0);
657
      else if (type == "form" && firstChar == "{") return lexical.indented;
658
      else if (type == "form") return lexical.indented + indentUnit;
659
      else if (type == "stat")
660
        return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
661
      else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
662
        return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
663
      else if (lexical.align) return lexical.column + (closing ? 0 : 1);
664
      else return lexical.indented + (closing ? 0 : indentUnit);
665
    },
666

    
667
    electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
668
    blockCommentStart: jsonMode ? null : "/*",
669
    blockCommentEnd: jsonMode ? null : "*/",
670
    lineComment: jsonMode ? null : "//",
671
    fold: "brace",
672

    
673
    helperType: jsonMode ? "json" : "javascript",
674
    jsonldMode: jsonldMode,
675
    jsonMode: jsonMode
676
  };
677
});
678

    
679
CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/);
680

    
681
CodeMirror.defineMIME("text/javascript", "javascript");
682
CodeMirror.defineMIME("text/ecmascript", "javascript");
683
CodeMirror.defineMIME("application/javascript", "javascript");
684
CodeMirror.defineMIME("application/x-javascript", "javascript");
685
CodeMirror.defineMIME("application/ecmascript", "javascript");
686
CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
687
CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
688
CodeMirror.defineMIME("application/ld+json", {name: "javascript", jsonld: true});
689
CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
690
CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
691

    
692
});
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