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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// Originally written by Alf Nielsen, re-written by Michael Zhou
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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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function words(str) {
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  var obj = {}, words = str.split(",");
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  for (var i = 0; i < words.length; ++i) {
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    var allCaps = words[i].toUpperCase();
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    var firstCap = words[i].charAt(0).toUpperCase() + words[i].slice(1);
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    obj[words[i]] = true;
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    obj[allCaps] = true;
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    obj[firstCap] = true;
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  }
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  return obj;
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}
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function metaHook(stream) {
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  stream.eatWhile(/[\w\$_]/);
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  return "meta";
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}
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CodeMirror.defineMode("vhdl", function(config, parserConfig) {
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  var indentUnit = config.indentUnit,
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      atoms = parserConfig.atoms || words("null"),
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      hooks = parserConfig.hooks || {"`": metaHook, "$": metaHook},
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      multiLineStrings = parserConfig.multiLineStrings;
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  var keywords = words("abs,access,after,alias,all,and,architecture,array,assert,attribute,begin,block," +
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      "body,buffer,bus,case,component,configuration,constant,disconnect,downto,else,elsif,end,end block,end case," +
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      "end component,end for,end generate,end if,end loop,end process,end record,end units,entity,exit,file,for," +
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      "function,generate,generic,generic map,group,guarded,if,impure,in,inertial,inout,is,label,library,linkage," +
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      "literal,loop,map,mod,nand,new,next,nor,null,of,on,open,or,others,out,package,package body,port,port map," +
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      "postponed,procedure,process,pure,range,record,register,reject,rem,report,return,rol,ror,select,severity,signal," +
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      "sla,sll,sra,srl,subtype,then,to,transport,type,unaffected,units,until,use,variable,wait,when,while,with,xnor,xor");
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  var blockKeywords = words("architecture,entity,begin,case,port,else,elsif,end,for,function,if");
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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 (hooks[ch]) {
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      var result = hooks[ch](stream, state);
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      if (result !== false) return result;
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    }
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    if (ch == '"') {
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      state.tokenize = tokenString2(ch);
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      return state.tokenize(stream, state);
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    }
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    if (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 (/[\[\]{}\(\),;\:\.]/.test(ch)) {
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      curPunc = ch;
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      return null;
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    }
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    if (/[\d']/.test(ch)) {
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      stream.eatWhile(/[\w\.']/);
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      return "number";
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    }
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    if (ch == "-") {
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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\$_]/);
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    var cur = stream.current();
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    if (keywords.propertyIsEnumerable(cur.toLowerCase())) {
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      if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
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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 && next == "--";
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      }
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      if (end || !(escaped || multiLineStrings))
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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 tokenString2(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 && next == "--";
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      }
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      if (end || !(escaped || multiLineStrings))
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        state.tokenize = tokenBase;
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      return "string-2";
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    };
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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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    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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      }
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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" || style == "meta") return style;
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      if (ctx.align == null) ctx.align = true;
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      if ((curPunc == ";" || curPunc == ":") && ctx.type == "statement") popContext(state);
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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 == "(") pushContext(state, stream.column(), ")");
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      else if (curPunc == "}") {
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        while (ctx.type == "statement") ctx = popContext(state);
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        if (ctx.type == "}") ctx = popContext(state);
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        while (ctx.type == "statement") ctx = popContext(state);
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      }
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      else if (curPunc == ctx.type) popContext(state);
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      else if (ctx.type == "}" || ctx.type == "top" || (ctx.type == "statement" && curPunc == "newstatement"))
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        pushContext(state, stream.column(), "statement");
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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 0;
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      var firstChar = textAfter && textAfter.charAt(0), ctx = state.context, closing = firstChar == ctx.type;
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      if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : indentUnit);
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      else 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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  };
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});
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CodeMirror.defineMIME("text/x-vhdl", "vhdl");
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});
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