/* ***** BEGIN LICENSE BLOCK *****
 * Distributed under the BSD license:
 *
 * Copyright (c) 2010, Ajax.org B.V.
 * All rights reserved.
 * 
 * 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
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * ***** END LICENSE BLOCK ***** */

define(function(require, exports, module) {
"use strict";

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

var XmlHighlightRules = function() {

    // regexp must not have capturing parentheses
    // regexps are ordered -> the first match is used
    this.$rules = {
        start : [{
            token : "text",
            regex : "<\\!\\[CDATA\\[",
            next : "cdata"
        }, {
            token : "xml-pe",
            regex : "<\\?.*?\\?>"
        }, {
            token : "comment",
            merge : true,
            regex : "<\\!--",
            next : "comment"
        }, {
            token : "xml-pe",
            regex : "<\\!.*?>"
        }, {
            token : "meta.tag", // opening tag
            regex : "<\\/?",
            next : "tag"
        }, {
            token : "text",
            regex : "\\s+"
        }, {
            token : "constant.character.entity",
            regex : "(?:&#[0-9]+;)|(?:&#x[0-9a-fA-F]+;)|(?:&[a-zA-Z0-9_:\\.-]+;)"
        }, {
            token : "text",
            regex : "[^<]+"
        }],
        
        cdata : [{
            token : "text",
            regex : "\\]\\]>",
            next : "start"
        }, {
            token : "text",
            regex : "\\s+"
        }, {
            token : "text",
            regex : "(?:[^\\]]|\\](?!\\]>))+"
        }],

        comment : [{
            token : "comment",
            regex : ".*?-->",
            next : "start"
        }, {
            token : "comment",
            merge : true,
            regex : ".+"
        }]
    };
    
    xmlUtil.tag(this.$rules, "tag", "start");
};

oop.inherits(XmlHighlightRules, TextHighlightRules);

exports.XmlHighlightRules = XmlHighlightRules;
});