/*
 * r.js
 *
 * Copyright (C) 2009-11 by RStudio, Inc.
 *
 * The Initial Developer of the Original Code is
 * Ajax.org B.V.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * This program is licensed to you under the terms of version 3 of the
 * GNU Affero General Public License. This program is distributed WITHOUT
 * ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
 * AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
 *
 */
ace.define('ace/mode/r', ['require', 'exports', 'module' , 'ace/range', 'ace/lib/oop', 'ace/mode/text', 'ace/tokenizer', 'ace/mode/text_highlight_rules', 'ace/mode/r_highlight_rules', 'ace/mode/matching_brace_outdent', 'ace/unicode'], function(require, exports, module) {
   

   var Range = require("../range").Range;
   var oop = require("../lib/oop");
   var TextMode = require("./text").Mode;
   var Tokenizer = require("../tokenizer").Tokenizer;
   var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;
   var RHighlightRules = require("./r_highlight_rules").RHighlightRules;
   var MatchingBraceOutdent = require("./matching_brace_outdent").MatchingBraceOutdent;
   var unicode = require("../unicode");

   var Mode = function()
   {
      this.$tokenizer = new Tokenizer(new RHighlightRules().getRules());
      this.$outdent = new MatchingBraceOutdent();
   };
   oop.inherits(Mode, TextMode);

   (function()
   {
      this.lineCommentStart = "#";
   }).call(Mode.prototype);
   exports.Mode = Mode;
});
ace.define('ace/mode/r_highlight_rules', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/lib/lang', 'ace/mode/text_highlight_rules', 'ace/mode/tex_highlight_rules'], function(require, exports, module) {

   var oop = require("../lib/oop");
   var lang = require("../lib/lang");
   var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;
   var TexHighlightRules = require("./tex_highlight_rules").TexHighlightRules;

   var RHighlightRules = function()
   {

      var keywords = lang.arrayToMap(
            ("function|if|in|break|next|repeat|else|for|return|switch|while|try|tryCatch|stop|warning|require|library|attach|detach|source|setMethod|setGeneric|setGroupGeneric|setClass")
                  .split("|")
            );

      var buildinConstants = lang.arrayToMap(
            ("NULL|NA|TRUE|FALSE|T|F|Inf|NaN|NA_integer_|NA_real_|NA_character_|" +
             "NA_complex_").split("|")
            );

      this.$rules = {
         "start" : [
            {
               token : "comment.sectionhead",
               regex : "#+(?!').*(?:----|====|####)\\s*$"
            },
            {
               token : "comment",
               regex : "#+'",
               next : "rd-start"
            },
            {
               token : "comment",
               regex : "#.*$"
            },
            {
               token : "string", // multi line string start
               regex : '["]',
               next : "qqstring"
            },
            {
               token : "string", // multi line string start
               regex : "[']",
               next : "qstring"
            },
            {
               token : "constant.numeric", // hex
               regex : "0[xX][0-9a-fA-F]+[Li]?\\b"
            },
            {
               token : "constant.numeric", // explicit integer
               regex : "\\d+L\\b"
            },
            {
               token : "constant.numeric", // number
               regex : "\\d+(?:\\.\\d*)?(?:[eE][+\\-]?\\d*)?i?\\b"
            },
            {
               token : "constant.numeric", // number with leading decimal
               regex : "\\.\\d+(?:[eE][+\\-]?\\d*)?i?\\b"
            },
            {
               token : "constant.language.boolean",
               regex : "(?:TRUE|FALSE|T|F)\\b"
            },
            {
               token : "identifier",
               regex : "`.*?`"
            },
            {
               onMatch : function(value) {
                  if (keywords[value])
                     return "keyword";
                  else if (buildinConstants[value])
                     return "constant.language";
                  else if (value == '...' || value.match(/^\.\.\d+$/))
                     return "variable.language";
                  else
                     return "identifier";
               },
               regex : "[a-zA-Z.][a-zA-Z0-9._]*\\b"
            },
            {
               token : "keyword.operator",
               regex : "%%|>=|<=|==|!=|\\->|<\\-|\\|\\||&&|=|\\+|\\-|\\*|/|\\^|>|<|!|&|\\||~|\\$|:"
            },
            {
               token : "keyword.operator", // infix operators
               regex : "%.*?%"
            },
            {
               token : "paren.keyword.operator",
               regex : "[[({]"
            },
            {
               token : "paren.keyword.operator",
               regex : "[\\])}]"
            },
            {
               token : "text",
               regex : "\\s+"
            }
         ],
         "qqstring" : [
            {
               token : "string",
               regex : '(?:(?:\\\\.)|(?:[^"\\\\]))*?"',
               next : "start"
            },
            {
               token : "string",
               regex : '.+'
            }
         ],
         "qstring" : [
            {
               token : "string",
               regex : "(?:(?:\\\\.)|(?:[^'\\\\]))*?'",
               next : "start"
            },
            {
               token : "string",
               regex : '.+'
            }
         ]
      };

      var rdRules = new TexHighlightRules("comment").getRules();
      for (var i = 0; i < rdRules["start"].length; i++) {
         rdRules["start"][i].token += ".virtual-comment";
      }

      this.addRules(rdRules, "rd-");
      this.$rules["rd-start"].unshift({
          token: "text",
          regex: "^",
          next: "start"
      });
      this.$rules["rd-start"].unshift({
         token : "keyword",
         regex : "@(?!@)[^ ]*"
      });
      this.$rules["rd-start"].unshift({
         token : "comment",
         regex : "@@"
      });
      this.$rules["rd-start"].push({
         token : "comment",
         regex : "[^%\\\\[({\\])}]+"
      });
   };

   oop.inherits(RHighlightRules, TextHighlightRules);

   exports.RHighlightRules = RHighlightRules;
});
ace.define('ace/mode/tex_highlight_rules', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/lib/lang', 'ace/mode/text_highlight_rules'], function(require, exports, module) {


var oop = require("../lib/oop");
var lang = require("../lib/lang");
var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;

var TexHighlightRules = function(textClass) {

    if (!textClass)
        textClass = "text";

    this.$rules = {
        "start" : [
	        {
	            token : "comment",
	            regex : "%.*$"
	        }, {
	            token : textClass, // non-command
	            regex : "\\\\[$&%#\\{\\}]"
	        }, {
	            token : "keyword", // command
	            regex : "\\\\(?:documentclass|usepackage|newcounter|setcounter|addtocounter|value|arabic|stepcounter|newenvironment|renewenvironment|ref|vref|eqref|pageref|label|cite[a-zA-Z]*|tag|begin|end|bibitem)\\b",
               next : "nospell"
	        }, {
	            token : "keyword", // command
	            regex : "\\\\(?:[a-zA-z0-9]+|[^a-zA-z0-9])"
	        }, {
               token : "paren.keyword.operator",
	            regex : "[[({]"
	        }, {
               token : "paren.keyword.operator",
	            regex : "[\\])}]"
	        }, {
	            token : textClass,
	            regex : "\\s+"
	        }
        ],
        "nospell" : [
           {
               token : "comment",
               regex : "%.*$",
               next : "start"
           }, {
               token : "nospell." + textClass, // non-command
               regex : "\\\\[$&%#\\{\\}]"
           }, {
               token : "keyword", // command
               regex : "\\\\(?:documentclass|usepackage|newcounter|setcounter|addtocounter|value|arabic|stepcounter|newenvironment|renewenvironment|ref|vref|eqref|pageref|label|cite[a-zA-Z]*|tag|begin|end|bibitem)\\b"
           }, {
               token : "keyword", // command
               regex : "\\\\(?:[a-zA-z0-9]+|[^a-zA-z0-9])",
               next : "start"
           }, {
               token : "paren.keyword.operator",
               regex : "[[({]"
           }, {
               token : "paren.keyword.operator",
               regex : "[\\])]"
           }, {
               token : "paren.keyword.operator",
               regex : "}",
               next : "start"
           }, {
               token : "nospell." + textClass,
               regex : "\\s+"
           }, {
               token : "nospell." + textClass,
               regex : "\\w+"
           }
        ]
    };
};

oop.inherits(TexHighlightRules, TextHighlightRules);

exports.TexHighlightRules = TexHighlightRules;
});

ace.define('ace/mode/matching_brace_outdent', ['require', 'exports', 'module' , 'ace/range'], function(require, exports, module) {


var Range = require("../range").Range;

var MatchingBraceOutdent = function() {};

(function() {

    this.checkOutdent = function(line, input) {
        if (! /^\s+$/.test(line))
            return false;

        return /^\s*\}/.test(input);
    };

    this.autoOutdent = function(doc, row) {
        var line = doc.getLine(row);
        var match = line.match(/^(\s*\})/);

        if (!match) return 0;

        var column = match[1].length;
        var openBracePos = doc.findMatchingBracket({row: row, column: column});

        if (!openBracePos || openBracePos.row == row) return 0;

        var indent = this.$getIndent(doc.getLine(openBracePos.row));
        doc.replace(new Range(row, 0, row, column-1), indent);
    };

    this.$getIndent = function(line) {
        return line.match(/^\s*/)[0];
    };

}).call(MatchingBraceOutdent.prototype);

exports.MatchingBraceOutdent = MatchingBraceOutdent;
});
