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