// CodeMirror, copyright © by Marijn Haverbeke and others // Distributed under an MIT license: 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(“julia”, function(_conf, parserConf) {

var ERRORCLASS = 'error';

function wordRegexp(words) {
  return new RegExp("^((" + words.join(")|(") + "))\\b");
}

var operators = parserConf.operators || /^\.?[|&^\\%*+\-<>!=\/]=?|\?|~|:|\$|\.[<>]|<<=?|>>>?=?|\.[<>=]=|->?|\/\/|\bin\b/;
var delimiters = parserConf.delimiters || /^[;,()[\]{}]/;
var identifiers = parserConf.identifiers|| /^[_A-Za-z\u00A1-\uFFFF][_A-Za-z0-9\u00A1-\uFFFF]*!*/;
var blockOpeners = ["begin", "function", "type", "immutable", "let", "macro", "for", "while", "quote", "if", "else", "elseif", "try", "finally", "catch", "do"];
var blockClosers = ["end", "else", "elseif", "catch", "finally"];
var keywordList = ['if', 'else', 'elseif', 'while', 'for', 'begin', 'let', 'end', 'do', 'try', 'catch', 'finally', 'return', 'break', 'continue', 'global', 'local', 'const', 'export', 'import', 'importall', 'using', 'function', 'macro', 'module', 'baremodule', 'type', 'immutable', 'quote', 'typealias', 'abstract', 'bitstype', 'ccall'];
var builtinList = ['true', 'false', 'enumerate', 'open', 'close', 'nothing', 'NaN', 'Inf', 'print', 'println', 'Int', 'Int8', 'Uint8', 'Int16', 'Uint16', 'Int32', 'Uint32', 'Int64', 'Uint64', 'Int128', 'Uint128', 'Bool', 'Char', 'Float16', 'Float32', 'Float64', 'Array', 'Vector', 'Matrix', 'String', 'UTF8String', 'ASCIIString', 'error', 'warn', 'info', '@printf'];

//var stringPrefixes = new RegExp("^[br]?('|\")")
var stringPrefixes = /^(`|'|"{3}|([br]?"))/;
var keywords = wordRegexp(keywordList);
var builtins = wordRegexp(builtinList);
var openers = wordRegexp(blockOpeners);
var closers = wordRegexp(blockClosers);
var macro = /^@[_A-Za-z][_A-Za-z0-9]*/;
var symbol = /^:[_A-Za-z][_A-Za-z0-9]*/;
var indentInfo = null;

function in_array(state) {
  var ch = cur_scope(state);
  if(ch=="[" || ch=="{") {
    return true;
  }
  else {
    return false;
  }
}

function cur_scope(state) {
  if(state.scopes.length==0) {
    return null;
  }
  return state.scopes[state.scopes.length - 1];
}

// tokenizers
function tokenBase(stream, state) {
  // Handle scope changes
  var leaving_expr = state.leaving_expr;
  if(stream.sol()) {
    leaving_expr = false;
  }
  state.leaving_expr = false;
  if(leaving_expr) {
    if(stream.match(/^'+/)) {
      return 'operator';
    }

  }

  if(stream.match(/^\.{2,3}/)) {
    return 'operator';
  }

  if (stream.eatSpace()) {
    return null;
  }

  var ch = stream.peek();
  // Handle Comments
  if (ch === '#') {
      stream.skipToEnd();
      return 'comment';
  }
  if(ch==='[') {
    state.scopes.push("[");
  }

  if(ch==='{') {
    state.scopes.push("{");
  }

  var scope=cur_scope(state);

  if(scope==='[' && ch===']') {
    state.scopes.pop();
    state.leaving_expr=true;
  }

  if(scope==='{' && ch==='}') {
    state.scopes.pop();
    state.leaving_expr=true;
  }

  if(ch===')') {
    state.leaving_expr = true;
  }

  var match;
  if(!in_array(state) && (match=stream.match(openers, false))) {
    state.scopes.push(match);
  }

  if(!in_array(state) && stream.match(closers, false)) {
    state.scopes.pop();
  }

  if(in_array(state)) {
    if(stream.match(/^end/)) {
      return 'number';
    }

  }

  if(stream.match(/^=>/)) {
    return 'operator';
  }

  // Handle Number Literals
  if (stream.match(/^[0-9\.]/, false)) {
    var imMatcher = RegExp(/^im\b/);
    var floatLiteral = false;
    // Floats
    if (stream.match(/^\d*\.(?!\.)\d+([ef][\+\-]?\d+)?/i)) { floatLiteral = true; }
    if (stream.match(/^\d+\.(?!\.)\d*/)) { floatLiteral = true; }
    if (stream.match(/^\.\d+/)) { floatLiteral = true; }
    if (floatLiteral) {
        // Float literals may be "imaginary"
        stream.match(imMatcher);
        state.leaving_expr = true;
        return 'number';
    }
    // Integers
    var intLiteral = false;
    // Hex
    if (stream.match(/^0x[0-9a-f]+/i)) { intLiteral = true; }
    // Binary
    if (stream.match(/^0b[01]+/i)) { intLiteral = true; }
    // Octal
    if (stream.match(/^0o[0-7]+/i)) { intLiteral = true; }
    // Decimal
    if (stream.match(/^[1-9]\d*(e[\+\-]?\d+)?/)) {
        intLiteral = true;
    }
    // Zero by itself with no other piece of number.
    if (stream.match(/^0(?![\dx])/i)) { intLiteral = true; }
    if (intLiteral) {
        // Integer literals may be "long"
        stream.match(imMatcher);
        state.leaving_expr = true;
        return 'number';
    }
  }

  if(stream.match(/^(::)|(<:)/)) {
    return 'operator';
  }

  // Handle symbols
  if(!leaving_expr && stream.match(symbol)) {
    return 'string';
  }

  // Handle operators and Delimiters
  if (stream.match(operators)) {
    return 'operator';
  }

  // Handle Strings
  if (stream.match(stringPrefixes)) {
    state.tokenize = tokenStringFactory(stream.current());
    return state.tokenize(stream, state);
  }

  if (stream.match(macro)) {
    return 'meta';
  }

  if (stream.match(delimiters)) {
    return null;
  }

  if (stream.match(keywords)) {
    return 'keyword';
  }

  if (stream.match(builtins)) {
    return 'builtin';
  }

  if (stream.match(identifiers)) {
    state.leaving_expr=true;
    return 'variable';
  }
  // Handle non-detected items
  stream.next();
  return ERRORCLASS;
}

function tokenStringFactory(delimiter) {
  while ('rub'.indexOf(delimiter.charAt(0).toLowerCase()) >= 0) {
    delimiter = delimiter.substr(1);
  }
  var singleline = delimiter.length == 1;
  var OUTCLASS = 'string';

  function tokenString(stream, state) {
    while (!stream.eol()) {
      stream.eatWhile(/[^'"\\]/);
      if (stream.eat('\\')) {
          stream.next();
          if (singleline && stream.eol()) {
            return OUTCLASS;
          }
      } else if (stream.match(delimiter)) {
          state.tokenize = tokenBase;
          return OUTCLASS;
      } else {
          stream.eat(/['"]/);
      }
    }
    if (singleline) {
      if (parserConf.singleLineStringErrors) {
          return ERRORCLASS;
      } else {
          state.tokenize = tokenBase;
      }
    }
    return OUTCLASS;
  }
  tokenString.isString = true;
  return tokenString;
}

function tokenLexer(stream, state) {
  indentInfo = null;
  var style = state.tokenize(stream, state);
  var current = stream.current();

  // Handle '.' connected identifiers
  if (current === '.') {
    style = stream.match(identifiers, false) ? null : ERRORCLASS;
    if (style === null && state.lastStyle === 'meta') {
        // Apply 'meta' style to '.' connected identifiers when
        // appropriate.
      style = 'meta';
    }
    return style;
  }

  return style;
}

var external = {
  startState: function() {
    return {
      tokenize: tokenBase,
      scopes: [],
      leaving_expr: false
    };
  },

  token: function(stream, state) {
    var style = tokenLexer(stream, state);
    state.lastStyle = style;
    return style;
  },

  indent: function(state, textAfter) {
    var delta = 0;
    if(textAfter=="end" || textAfter=="]" || textAfter=="}" || textAfter=="else" || textAfter=="elseif" || textAfter=="catch" || textAfter=="finally") {
      delta = -1;
    }
    return (state.scopes.length + delta) * 4;
  },

  lineComment: "#",
  fold: "indent",
  electricChars: "edlsifyh]}"
};
return external;

});

CodeMirror.defineMIME(“text/x-julia”, “julia”);

});