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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
"use strict";

CodeMirror.defineMode("q",function(config){
  var indentUnit=config.indentUnit,
      curPunc,
      keywords=buildRE(["abs","acos","aj","aj0","all","and","any","asc","asin","asof","atan","attr","avg","avgs","bin","by","ceiling","cols","cor","cos","count","cov","cross","csv","cut","delete","deltas","desc","dev","differ","distinct","div","do","...
      E=/[|/&^!+:\\\-*%$=~#;@><,?_\'\"\[\(\]\)\s{}]/;
  function buildRE(w){return new RegExp("^("+w.join("|")+")$");}
  function tokenBase(stream,state){
    var sol=stream.sol(),c=stream.next();
    curPunc=null;
    if(sol)
      if(c=="/")
        return(state.tokenize=tokenLineComment)(stream,state);
      else if(c=="\\"){
        if(stream.eol()||/\s/.test(stream.peek()))
          return stream.skipToEnd(),/^\\\s*$/.test(stream.current())?(state.tokenize=tokenCommentToEOF)(stream, state):state.tokenize=tokenBase,"comment";
        else
          return state.tokenize=tokenBase,"builtin";
      }
    if(/\s/.test(c))
      return stream.peek()=="/"?(stream.skipToEnd(),"comment"):"whitespace";
    if(c=='"')
      return(state.tokenize=tokenString)(stream,state);
    if(c=='`')
      return stream.eatWhile(/[A-Z|a-z|\d|_|:|\/|\.]/),"symbol";
    if(("."==c&&/\d/.test(stream.peek()))||/\d/.test(c)){
      var t=null;
      stream.backUp(1);
      if(stream.match(/^\d{4}\.\d{2}(m|\.\d{2}([D|T](\d{2}(:\d{2}(:\d{2}(\.\d{1,9})?)?)?)?)?)/)
      || stream.match(/^\d+D(\d{2}(:\d{2}(:\d{2}(\.\d{1,9})?)?)?)/)
      || stream.match(/^\d{2}:\d{2}(:\d{2}(\.\d{1,9})?)?/)
      || stream.match(/^\d+[ptuv]{1}/))
        t="temporal";
      else if(stream.match(/^0[NwW]{1}/)
      || stream.match(/^0x[\d|a-f|A-F]*/)
      || stream.match(/^[0|1]+[b]{1}/)
      || stream.match(/^\d+[chijn]{1}/)
      || stream.match(/-?\d*(\.\d*)?(e[+\-]?\d+)?(e|f)?/))
        t="number";
      return(t&&(!(c=stream.peek())||E.test(c)))?t:(stream.next(),"error");
    }
    if(/[A-Z|a-z]|\./.test(c))
      return stream.eatWhile(/[A-Z|a-z|\.|_|\d]/),keywords.test(stream.current())?"keyword":"variable";
    if(/[|/&^!+:\\\-*%$=~#;@><\.,?_\']/.test(c))
      return null;
    if(/[{}\(\[\]\)]/.test(c))
      return null;
    return"error";
  }
  function tokenLineComment(stream,state){
    return stream.skipToEnd(),/\/\s*$/.test(stream.current())?(state.tokenize=tokenBlockComment)(stream,state):(state.tokenize=tokenBase),"comment";
  }
  function tokenBlockComment(stream,state){
    var f=stream.sol()&&stream.peek()=="\\";
    stream.skipToEnd();
    if(f&&/^\\\s*$/.test(stream.current()))
      state.tokenize=tokenBase;
    return"comment";
  }
  function tokenCommentToEOF(stream){return stream.skipToEnd(),"comment";}
  function tokenString(stream,state){
    var escaped=false,next,end=false;
    while((next=stream.next())){
      if(next=="\""&&!escaped){end=true;break;}
      escaped=!escaped&&next=="\\";