ace/lib/ace/mode/javascript_highlight_rules.js

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Ajax.org Code Editor (ACE).
 *
 * 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.
 *
 * Contributor(s):
 *      Fabian Jakobs <fabian AT ajax DOT org>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

define(function(require, exports, module) {

var oop = require("pilot/oop");
var lang = require("pilot/lang");
var DocCommentHighlightRules = require("ace/mode/doc_comment_highlight_rules").DocCommentHighlightRules;
var TextHighlightRules = require("ace/mode/text_highlight_rules").TextHighlightRules;

JavaScriptHighlightRules = function() {

    var docComment = new DocCommentHighlightRules();

    var keywords = lang.arrayToMap(
        ("break|case|catch|continue|default|delete|do|else|finally|for|function|" +
        "if|in|instanceof|new|return|switch|throw|try|typeof|var|while|with").split("|")
    );
    
    var buildinConstants = lang.arrayToMap(
        ("null|Infinity|NaN|undefined").split("|")
    );
    
    var futureReserved = lang.arrayToMap(
        ("class|enum|extends|super|const|export|import|implements|let|private|" +
        "public|yield|interface|package|protected|static").split("|")
    );

    // regexp must not have capturing parentheses. Use (?:) instead.
    // regexps are ordered -> the first match is used

    this.$rules = {
        "start" : [
	        {
	            token : "comment",
	            regex : "\\/\\/.*$"
	        },
	        docComment.getStartRule("doc-start"),
	        {
	            token : "comment", // multi line comment
	            regex : "\\/\\*",
	            next : "comment"
	        }, {
	            token : "string.regexp",
	            regex : "[/](?:(?:\\[(?:\\\\]|[^\\]])+\\])|(?:\\\\/|[^\\]/]))*[/]\\w*\\s*(?=[).,;]|$)"
	        }, {
	            token : "string", // single line
	            regex : '["](?:(?:\\\\.)|(?:[^"\\\\]))*?["]'
	        }, {
	            token : "string", // multi line string start
	            regex : '["].*\\\\$',
	            next : "qqstring"
	        }, {
	            token : "string", // single line
	            regex : "['](?:(?:\\\\.)|(?:[^'\\\\]))*?[']"
	        }, {
	            token : "string", // multi line string start
	            regex : "['].*\\\\$",
	            next : "qstring"
	        }, {
	            token : "constant.numeric", // hex
	            regex : "0[xX][0-9a-fA-F]+\\b"
	        }, {
	            token : "constant.numeric", // float
	            regex : "[+-]?\\d+(?:(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)?\\b"
	        }, {
	            token : "constant.language.boolean",
	            regex : "(?:true|false)\\b"
	        }, {
	            token : function(value) {
	                if (value == "this")
	                    return "variable.language";
	                else if (keywords[value])
	                    return "keyword";
	                else if (buildinConstants[value])
	                    return "constant.language";
	                else if (futureReserved[value])
	                    return "invalid.illegal";
	                else if (value == "debugger")
	                    return "invalid.deprecated";
	                else
	                    return "identifier";
	            },
	            // TODO: Unicode escape sequences
	            // TODO: Unicode identifiers
	            regex : "[a-zA-Z_$][a-zA-Z0-9_$]*\\b"
	        }, {
	            token : "keyword.operator",
	            regex : "!|\\$|%|&|\\*|\\-\\-|\\-|\\+\\+|\\+|~|===|==|=|!=|!==|<=|>=|<<=|>>=|>>>=|<>|<|>|!|&&|\\|\\||\\?\\:|\\*=|%=|\\+=|\\-=|&=|\\^=|\\b(?:in|instanceof|new|delete|typeof|void)"
	        }, {
	            token : "lparen",
	            regex : "[[({]"
	        }, {
	            token : "rparen",
	            regex : "[\\])}]"
	        }, {
	            token : "text",
	            regex : "\\s+"
	        }
        ],
        "comment" : [
	        {
	            token : "comment", // closing comment
	            regex : ".*?\\*\\/",
	            next : "start"
	        }, {
	            token : "comment", // comment spanning whole line
	            regex : ".+"
	        }
        ],
        "qqstring" : [
            {
	            token : "string",
	            regex : '(?:(?:\\\\.)|(?:[^"\\\\]))*?"',
	            next : "start"
	        }, {
	            token : "string",
	            regex : '.+'
	        }
        ],
        "qstring" : [
	        {
	            token : "string",
	            regex : "(?:(?:\\\\.)|(?:[^'\\\\]))*?'",
	            next : "start"
	        }, {
	            token : "string",
	            regex : '.+'
	        }
        ]
    };

    this.addRules(docComment.getRules(), "doc-");
    this.$rules["doc-start"][0].next = "start";
};

oop.inherits(JavaScriptHighlightRules, TextHighlightRules);

exports.JavaScriptHighlightRules = JavaScriptHighlightRules;
});