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 * Distributed under the BSD license:
 *
 * Copyright (c) 2010, Ajax.org B.V.
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 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Ajax.org B.V. nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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ace.define('ace/mode/diff', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/text', 'ace/tokenizer', 'ace/mode/diff_highlight_rules', 'ace/mode/folding/diff'], function(require, exports, module) {


var oop = require("../lib/oop");
var TextMode = require("./text").Mode;
var Tokenizer = require("../tokenizer").Tokenizer;
var HighlightRules = require("./diff_highlight_rules").DiffHighlightRules;
var FoldMode = require("./folding/diff").FoldMode;

var Mode = function() {
    this.HighlightRules = HighlightRules;
    this.foldingRules = new FoldMode(["diff", "index", "\\+{3}", "@@|\\*{5}"], "i");
};
oop.inherits(Mode, TextMode);

(function() {

    this.$id = "ace/mode/diff";
}).call(Mode.prototype);

exports.Mode = Mode;

});

ace.define('ace/mode/diff_highlight_rules', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/text_highlight_rules'], function(require, exports, module) {


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

var DiffHighlightRules = function() {



    this.$rules = {
        "start" : [{
                regex: "^(?:\\*{15}|={67}|-{3}|\\+{3})$",
                token: "punctuation.definition.separator.diff",
                "name": "keyword"
            }, { //diff.range.unified
                regex: "^(@@)(\\s*.+?\\s*)(@@)(.*)$",
                token: [
                    "constant",
                    "constant.numeric",
                    "constant",
                    "comment.doc.tag"
                ]
            }, { //diff.range.normal
                regex: "^(\\d+)([,\\d]+)(a|d|c)(\\d+)([,\\d]+)(.*)$",
                token: [
                    "constant.numeric",
                    "punctuation.definition.range.diff",
                    "constant.function",
                    "constant.numeric",
                    "punctuation.definition.range.diff",
                    "invalid"
                ],
                "name": "meta."
            }, {
                regex: "^(\\-{3}|\\+{3}|\\*{3})( .+)$",
                token: [
                    "constant.numeric",
                    "meta.tag"
                ]
            }, { // added
                regex: "^([!+>])(.*?)(\\s*)$",
                token: [
                    "support.constant",
                    "text",
                    "invalid"
                ]
            }, { // removed
                regex: "^([<\\-])(.*?)(\\s*)$",
                token: [
                    "support.function",
                    "string",
                    "invalid"
                ]
            }, {
                regex: "^(diff)(\\s+--\\w+)?(.+?)( .+)?$",
                token: ["variable", "variable", "keyword", "variable"]
            }, {
                regex: "^Index.+$",
                token: "variable"
            }, {
                regex: "^\\s+$",
                token: "text"
            }, {
                regex: "\\s*$",
                token: "invalid"
            }, {
                defaultToken: "invisible",
                caseInsensitive: true
            }
        ]
    };
};

oop.inherits(DiffHighlightRules, TextHighlightRules);

exports.DiffHighlightRules = DiffHighlightRules;
});

ace.define('ace/mode/folding/diff', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/folding/fold_mode', 'ace/range'], function(require, exports, module) {


var oop = require("../../lib/oop");
var BaseFoldMode = require("./fold_mode").FoldMode;
var Range = require("../../range").Range;

var FoldMode = exports.FoldMode = function(levels, flag) {
	this.regExpList = levels;
	this.flag = flag;
	this.foldingStartMarker = RegExp("^(" + levels.join("|") + ")", this.flag);
};
oop.inherits(FoldMode, BaseFoldMode);

(function() {
    this.getFoldWidgetRange = function(session, foldStyle, row) {
        var line = session.getLine(row);
        var start = {row: row, column: line.length};

        var regList = this.regExpList;
        for (var i = 1; i <= regList.length; i++) {
            var re = RegExp("^(" + regList.slice(0, i).join("|") + ")", this.flag);
            if (re.test(line))
                break;
        }

        for (var l = session.getLength(); ++row < l; ) {
            line = session.getLine(row);
            if (re.test(line))
                break;
        }
        if (row == start.row + 1)
            return;
        return  Range.fromPoints(start, {row: row - 1, column: line.length});
    };

}).call(FoldMode.prototype);

});
