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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// Brainfuck mode created by Michael Kaminsky https://github.com/mkaminsky11
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(function(mod) {
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  if (typeof exports == "object" && typeof module == "object")
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    mod(require("../../lib/codemirror"))
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  else if (typeof define == "function" && define.amd)
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    define(["../../lib/codemirror"], mod)
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  else
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    mod(CodeMirror)
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})(function(CodeMirror) {
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  "use strict"
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  var reserve = "><+-.,[]".split("");
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  /*
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  comments can be either:
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  placed behind lines
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        +++    this is a comment
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  where reserved characters cannot be used
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  or in a loop
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  [
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    this is ok to use [ ] and stuff
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  ]
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  or preceded by #
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  */
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  CodeMirror.defineMode("brainfuck", function() {
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    return {
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      startState: function() {
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        return {
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          commentLine: false,
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          left: 0,
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          right: 0,
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          commentLoop: false
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        }
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      },
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      token: function(stream, state) {
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        if (stream.eatSpace()) return null
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        if(stream.sol()){
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          state.commentLine = false;
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        }
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        var ch = stream.next().toString();
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        if(reserve.indexOf(ch) !== -1){
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          if(state.commentLine === true){
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            if(stream.eol()){
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              state.commentLine = false;
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            }
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            return "comment";
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          }
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          if(ch === "]" || ch === "["){
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            if(ch === "["){
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              state.left++;
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            }
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            else{
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              state.right++;
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            }
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            return "bracket";
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          }
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          else if(ch === "+" || ch === "-"){
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            return "keyword";
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          }
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          else if(ch === "<" || ch === ">"){
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            return "atom";
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          }
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          else if(ch === "." || ch === ","){
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            return "def";
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          }
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        }
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        else{
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          state.commentLine = true;
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          if(stream.eol()){
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            state.commentLine = false;
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          }
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          return "comment";
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        }
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        if(stream.eol()){
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          state.commentLine = false;
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        }
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      }
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    };
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  });
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CodeMirror.defineMIME("text/x-brainfuck","brainfuck")
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});
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