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"));
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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("go", function(config) {
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  var indentUnit = config.indentUnit;
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  var keywords = {
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    "break":true, "case":true, "chan":true, "const":true, "continue":true,
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    "default":true, "defer":true, "else":true, "fallthrough":true, "for":true,
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    "func":true, "go":true, "goto":true, "if":true, "import":true,
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    "interface":true, "map":true, "package":true, "range":true, "return":true,
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    "select":true, "struct":true, "switch":true, "type":true, "var":true,
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    "bool":true, "byte":true, "complex64":true, "complex128":true,
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    "float32":true, "float64":true, "int8":true, "int16":true, "int32":true,
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    "int64":true, "string":true, "uint8":true, "uint16":true, "uint32":true,
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    "uint64":true, "int":true, "uint":true, "uintptr":true, "error": true,
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    "rune":true
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  };
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  var atoms = {
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    "true":true, "false":true, "iota":true, "nil":true, "append":true,
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    "cap":true, "close":true, "complex":true, "copy":true, "delete":true, "imag":true,
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    "len":true, "make":true, "new":true, "panic":true, "print":true,
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    "println":true, "real":true, "recover":true
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  };
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  var isOperatorChar = /[+\-*&^%:=<>!|\/]/;
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  var curPunc;
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  function tokenBase(stream, state) {
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    var ch = stream.next();
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    if (ch == '"' || ch == "'" || ch == "`") {
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      state.tokenize = tokenString(ch);
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      return state.tokenize(stream, state);
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    }
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    if (/[\d\.]/.test(ch)) {
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      if (ch == ".") {
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        stream.match(/^[0-9]+([eE][\-+]?[0-9]+)?/);
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      } else if (ch == "0") {
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        stream.match(/^[xX][0-9a-fA-F]+/) || stream.match(/^0[0-7]+/);
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      } else {
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        stream.match(/^[0-9]*\.?[0-9]*([eE][\-+]?[0-9]+)?/);
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      }
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      return "number";
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    }
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    if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
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      curPunc = ch;
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      return null;
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    }
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    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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      }
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      if (stream.eat("/")) {
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        stream.skipToEnd();
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        return "comment";
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      }
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    }
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    if (isOperatorChar.test(ch)) {
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      stream.eatWhile(isOperatorChar);
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      return "operator";
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    }
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    stream.eatWhile(/[\w\$_\xa1-\uffff]/);
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    var cur = stream.current();
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    if (keywords.propertyIsEnumerable(cur)) {
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      if (cur == "case" || cur == "default") curPunc = "case";
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      return "keyword";
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    }
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    if (atoms.propertyIsEnumerable(cur)) return "atom";
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    return "variable";
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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, end = false;
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      while ((next = stream.next()) != null) {
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        if (next == quote && !escaped) {end = true; break;}
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        escaped = !escaped && quote != "`" && next == "\\";
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      }
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      if (end || !(escaped || quote == "`"))
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        state.tokenize = tokenBase;
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      return "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()) {
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      if (ch == "/" && maybeEnd) {
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        state.tokenize = tokenBase;
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        break;
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      }
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      maybeEnd = (ch == "*");
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    }
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    return "comment";
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  }
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  function Context(indented, column, type, align, prev) {
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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.align = align;
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    this.prev = prev;
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  }
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  function pushContext(state, col, type) {
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    return state.context = new Context(state.indented, col, type, null, state.context);
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  }
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  function popContext(state) {
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    if (!state.context.prev) return;
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    var t = state.context.type;
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    if (t == ")" || t == "]" || t == "}")
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      state.indented = state.context.indented;
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    return state.context = state.context.prev;
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  }
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  // Interface
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  return {
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    startState: function(basecolumn) {
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      return {
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        tokenize: null,
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        context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
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        indented: 0,
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        startOfLine: true
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      };
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    },
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    token: function(stream, state) {
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      var ctx = state.context;
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      if (stream.sol()) {
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        if (ctx.align == null) ctx.align = false;
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        state.indented = stream.indentation();
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        state.startOfLine = true;
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        if (ctx.type == "case") ctx.type = "}";
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      }
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      if (stream.eatSpace()) return null;
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      curPunc = null;
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      var style = (state.tokenize || tokenBase)(stream, state);
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      if (style == "comment") return style;
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      if (ctx.align == null) ctx.align = true;
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      if (curPunc == "{") pushContext(state, stream.column(), "}");
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      else if (curPunc == "[") pushContext(state, stream.column(), "]");
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      else if (curPunc == "(") pushContext(state, stream.column(), ")");
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      else if (curPunc == "case") ctx.type = "case";
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      else if (curPunc == "}" && ctx.type == "}") popContext(state);
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      else if (curPunc == ctx.type) popContext(state);
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      state.startOfLine = false;
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      return style;
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    },
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    indent: function(state, textAfter) {
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      if (state.tokenize != tokenBase && state.tokenize != null) return CodeMirror.Pass;
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      var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
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      if (ctx.type == "case" && /^(?:case|default)\b/.test(textAfter)) {
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        state.context.type = "}";
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        return ctx.indented;
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      }
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      var closing = firstChar == ctx.type;
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      if (ctx.align) return ctx.column + (closing ? 0 : 1);
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      else return ctx.indented + (closing ? 0 : indentUnit);
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    },
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    electricChars: "{}):",
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    closeBrackets: "()[]{}''\"\"``",
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    fold: "brace",
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    blockCommentStart: "/*",
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    blockCommentEnd: "*/",
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    lineComment: "//"
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  };
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});
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CodeMirror.defineMIME("text/x-go", "go");
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});
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