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/**
* GNU LibreJS - A browser add-on to block nonfree nontrivial JavaScript.
* *
* Copyright (C) 2011, 2012, 2013, 2014 Loic J. Duros
* Copyright (C) 2014, 2015 Nik Nyby
* Copyright (C) 2022 Yuchen Pei
*
* This file is part of GNU LibreJS.
*
* GNU LibreJS is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNU LibreJS is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU LibreJS. If not, see <http://www.gnu.org/licenses/>.
*/
exports.patternUtils = {
/**
* removeNonalpha
*
* Remove all nonalphanumeric values, except for
* < and >, since they are what we use for tokens.
*
*/
removeNonalpha: function(str) {
return str.replace(/[^a-z0-9<>@]+/gi, '');
},
removeWhitespace: function(str) {
return str.replace(/\/\//gmi, '').replace(/\*/gmi, '').replace(/\s+/gmi, '');
},
replaceTokens: function(str) {
return str.replace(/<.*?>/gi, '.*?');
},
removeJsComments: function(str) {
const ml_comments = /\/\*.*?(\*\/)/g;
const il_comments = /\/\/.*/gm;
return str.replace(ml_comments, '').replace(il_comments, '');
}
};
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