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Diffstat (limited to 'src/mongo/util/pcre_util.h')
-rw-r--r-- | src/mongo/util/pcre_util.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/mongo/util/pcre_util.h b/src/mongo/util/pcre_util.h new file mode 100644 index 00000000000..deb7129e9bc --- /dev/null +++ b/src/mongo/util/pcre_util.h @@ -0,0 +1,60 @@ +/** + * 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. + */ + +#pragma once + +#include "mongo/base/string_data.h" +#include "mongo/util/pcre.h" + +/** + * This library collects Mongo-specific PCRE conventions which are useful + * but shouldn't be part of the main pcre.h library. + */ +namespace mongo::pcre_util { +/** + * Builds `pcre::CompileOptions` from the input options string. + * The `pcre::UTF` option is also set by default. + * Throws `uassert` 51108 on invalid flags including the `opName` in its reason. + * + * Valid flags: + * 'i': CASELESS + * 'm': MULTILINE + * 's': DOTALL + * 'u': UTF (redundant, but accepted) + * 'x': EXTENDED + */ +pcre::CompileOptions parseOptions(StringData optionFlags, StringData opName = ""); + +/** + * Escapes all potentially meaningful regex characters in the provided string. + * The returned string, used as a `mongo::pcre::Regex`, will match `str`. + */ +std::string quoteMeta(StringData str); + +} // namespace mongo::pcre_util |