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/**
* Copyright (C) 2019-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/util/regex_util.h"
#include "mongo/base/error_codes.h"
#include "mongo/util/mongoutils/str.h"
namespace mongo {
namespace regex_util {
pcrecpp::RE_Options flags2PcreOptions(StringData optionFlags, bool ignoreInvalidFlags) {
pcrecpp::RE_Options opt;
opt.set_utf8(true);
for (auto flag : optionFlags) {
switch (flag) {
case 'i': // case incase sensitive
opt.set_caseless(true);
continue;
case 'm': // newlines match ^ and $
opt.set_multiline(true);
continue;
case 'x': // extended mode
opt.set_extended(true);
continue;
case 's': // allows dot to include newline chars
opt.set_dotall(true);
continue;
default:
if (!ignoreInvalidFlags) {
uasserted(51108, str::stream() << "Invalid flag: " << flag);
}
}
}
return opt;
}
}
}
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