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/*******************************************************************************
uBlock Origin - a comprehensive, efficient content blocker
Copyright (C) 2019-present Raymond Hill
This program 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.
This program 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 this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://github.com/gorhill/uBlock
*/
import { ArglistParser } from './shared.js';
import { registerScriptlet } from './base.js';
/******************************************************************************/
export function parseReplaceFn(s) {
if ( s.charCodeAt(0) !== 0x2F /* / */ ) { return; }
const parser = new ArglistParser('/');
parser.nextArg(s, 1);
let pattern = s.slice(parser.argBeg, parser.argEnd);
if ( parser.transform ) {
pattern = parser.normalizeArg(pattern);
}
if ( pattern === '' ) { return; }
parser.nextArg(s, parser.separatorEnd);
let replacement = s.slice(parser.argBeg, parser.argEnd);
if ( parser.separatorEnd === parser.separatorBeg ) { return; }
if ( parser.transform ) {
replacement = parser.normalizeArg(replacement);
}
const flags = s.slice(parser.separatorEnd);
try {
return { re: new RegExp(pattern, flags), replacement };
} catch {
}
}
registerScriptlet(parseReplaceFn, {
name: 'parse-replace.fn',
dependencies: [
ArglistParser,
],
});
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