overleaf/services/web/public/js/ace/mode/html_highlight_rules.js

/* ***** 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
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 * 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 lang = require("../lib/lang");
var CssHighlightRules = require("./css_highlight_rules").CssHighlightRules;
var JavaScriptHighlightRules = require("./javascript_highlight_rules").JavaScriptHighlightRules;
var XmlHighlightRules = require("./xml_highlight_rules").XmlHighlightRules;

var tagMap = lang.createMap({
    a           : 'anchor',
    button 	    : 'form',
    form        : 'form',
    img         : 'image',
    input       : 'form',
    label       : 'form',
    option      : 'form',
    script      : 'script',
    select      : 'form',
    textarea    : 'form',
    style       : 'style',
    table       : 'table',
    tbody       : 'table',
    td          : 'table',
    tfoot       : 'table',
    th          : 'table',
    tr          : 'table'
});

var HtmlHighlightRules = function() {
    XmlHighlightRules.call(this);

    this.addRules({
        attributes: [{
            include : "space"
        }, {
            token : "entity.other.attribute-name",
            regex : "[-_a-zA-Z0-9:]+"
        }, {
            token : "keyword.operator.separator",
            regex : "=",
            push : [{
                include: "space"
            }, {
                token : "string",
                regex : "[^<>='\"`\\s]+",
                next : "pop"
            }, {
                token : "empty",
                regex : "",
                next : "pop"
            }]
        }, {
            include : "string"
        }],
        tag: [{
            token : function(start, tag) {
                var group = tagMap[tag];
                return ["meta.tag.punctuation.begin",
                    "meta.tag.name" + (group ? "." + group : "")];
            },
            regex : "(<)([-_a-zA-Z0-9:]+)",
            next: "start_tag_stuff"
        }, {
            token : function(start, tag) {
                var group = tagMap[tag];
                return ["meta.tag.punctuation.begin",
                    "meta.tag.name" + (group ? "." + group : "")];
            },
            regex : "(</)([-_a-zA-Z0-9:]+)",
            next: "end_tag_stuff"
        }],
        start_tag_stuff: [
            {include : "attributes"},
            {token : "meta.tag.punctuation.end", regex : "/?>", next : "start"}
        ],
        end_tag_stuff: [
            {include : "space"},
            {token : "meta.tag.punctuation.end", regex : ">", next : "start"}
        ]
    });

    this.embedTagRules(CssHighlightRules, "css-", "style");
    this.embedTagRules(JavaScriptHighlightRules, "js-", "script");

    if (this.constructor === HtmlHighlightRules)
        this.normalizeRules();
};

oop.inherits(HtmlHighlightRules, XmlHighlightRules);

exports.HtmlHighlightRules = HtmlHighlightRules;
});