/* Just enough of CodeMirror to run runMode under node.js */

function splitLines(string){ return string.split(/r?n|r/); };

function StringStream(string) {

this.pos = this.start = 0;
this.string = string;

} StringStream.prototype = {

eol: function() {return this.pos >= this.string.length;},
sol: function() {return this.pos == 0;},
peek: function() {return this.string.charAt(this.pos) || null;},
next: function() {
  if (this.pos < this.string.length)
    return this.string.charAt(this.pos++);
},
eat: function(match) {
  var ch = this.string.charAt(this.pos);
  if (typeof match == "string") var ok = ch == match;
  else var ok = ch && (match.test ? match.test(ch) : match(ch));
  if (ok) {++this.pos; return ch;}
},
eatWhile: function(match) {
  var start = this.pos;
  while (this.eat(match)){}
  return this.pos > start;
},
eatSpace: function() {
  var start = this.pos;
  while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
  return this.pos > start;
},
skipToEnd: function() {this.pos = this.string.length;},
skipTo: function(ch) {
  var found = this.string.indexOf(ch, this.pos);
  if (found > -1) {this.pos = found; return true;}
},
backUp: function(n) {this.pos -= n;},
column: function() {return this.start;},
indentation: function() {return 0;},
match: function(pattern, consume, caseInsensitive) {
  if (typeof pattern == "string") {
    function cased(str) {return caseInsensitive ? str.toLowerCase() : str;}
    if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {
      if (consume !== false) this.pos += pattern.length;
      return true;
    }
  }
  else {
    var match = this.string.slice(this.pos).match(pattern);
    if (match && consume !== false) this.pos += match[0].length;
    return match;
  }
},
current: function(){return this.string.slice(this.start, this.pos);}

}; exports.StringStream = StringStream;

exports.startState = function(mode, a1, a2) {

return mode.startState ? mode.startState(a1, a2) : true;

};

var modes = exports.modes = {}, mimeModes = exports.mimeModes = {}; exports.defineMode = function(name, mode) { modes = mode; }; exports.defineMIME = function(mime, spec) { mimeModes = spec; }; exports.getMode = function(options, spec) {

if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
  spec = mimeModes[spec];
if (typeof spec == "string")
  var mname = spec, config = {};
else if (spec != null)
  var mname = spec.name, config = spec;
var mfactory = modes[mname];
if (!mfactory) throw new Error("Unknown mode: " + spec);
return mfactory(options, config || {});

};

exports.runMode = function(string, modespec, callback) {

var mode = exports.getMode({indentUnit: 2}, modespec);
var lines = splitLines(string), state = exports.startState(mode);
for (var i = 0, e = lines.length; i < e; ++i) {
  if (i) callback("\n");
  var stream = new exports.StringStream(lines[i]);
  while (!stream.eol()) {
    var style = mode.token(stream, state);
    callback(stream.current(), style, i, stream.start);
    stream.start = stream.pos;
  }
}

};