GPQAPP

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// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: https://codemirror.net/LICENSE
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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"), require("../javascript/javascript"));
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  else if (typeof define == "function" && define.amd) // AMD
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    define(["../../lib/codemirror", "../javascript/javascript"], 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("pegjs", function (config) {
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  var jsMode = CodeMirror.getMode(config, "javascript");
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  function identifier(stream) {
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    return stream.match(/^[a-zA-Z_][a-zA-Z0-9_]*/);
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  }
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  return {
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    startState: function () {
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      return {
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        inString: false,
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        stringType: null,
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        inComment: false,
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        inCharacterClass: false,
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        braced: 0,
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        lhs: true,
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        localState: null
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      };
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    },
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    token: function (stream, state) {
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      if (stream)
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      //check for state changes
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      if (!state.inString && !state.inComment && ((stream.peek() == '"') || (stream.peek() == "'"))) {
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        state.stringType = stream.peek();
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        stream.next(); // Skip quote
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        state.inString = true; // Update state
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      }
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      if (!state.inString && !state.inComment && stream.match('/*')) {
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        state.inComment = true;
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      }
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      //return state
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      if (state.inString) {
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        while (state.inString && !stream.eol()) {
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          if (stream.peek() === state.stringType) {
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            stream.next(); // Skip quote
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            state.inString = false; // Clear flag
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          } else if (stream.peek() === '\\') {
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            stream.next();
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            stream.next();
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          } else {
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            stream.match(/^.[^\\\"\']*/);
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          }
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        }
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        return state.lhs ? "property string" : "string"; // Token style
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      } else if (state.inComment) {
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        while (state.inComment && !stream.eol()) {
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          if (stream.match('*/')) {
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            state.inComment = false; // Clear flag
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          } else {
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            stream.match(/^.[^\*]*/);
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          }
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        }
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        return "comment";
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      } else if (state.inCharacterClass) {
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          while (state.inCharacterClass && !stream.eol()) {
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            if (!(stream.match(/^[^\]\\]+/) || stream.match(/^\\./))) {
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              state.inCharacterClass = false;
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            }
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          }
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      } else if (stream.peek() === '[') {
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        stream.next();
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        state.inCharacterClass = true;
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        return 'bracket';
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      } else if (stream.match('//')) {
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        stream.skipToEnd();
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        return "comment";
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      } else if (state.braced || stream.peek() === '{') {
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        if (state.localState === null) {
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          state.localState = CodeMirror.startState(jsMode);
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        }
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        var token = jsMode.token(stream, state.localState);
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        var text = stream.current();
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        if (!token) {
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          for (var i = 0; i < text.length; i++) {
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            if (text[i] === '{') {
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              state.braced++;
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            } else if (text[i] === '}') {
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              state.braced--;
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            }
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          };
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        }
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        return token;
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      } else if (identifier(stream)) {
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        if (stream.peek() === ':') {
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          return 'variable';
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        }
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        return 'variable-2';
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      } else if (['[', ']', '(', ')'].indexOf(stream.peek()) != -1) {
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        stream.next();
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        return 'bracket';
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      } else if (!stream.eatSpace()) {
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        stream.next();
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      }
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      return null;
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    }
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  };
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}, "javascript");
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});
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