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Diffstat (limited to 'src/arrow/cpp/src/gandiva/regex_util.h')
-rw-r--r-- | src/arrow/cpp/src/gandiva/regex_util.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/arrow/cpp/src/gandiva/regex_util.h b/src/arrow/cpp/src/gandiva/regex_util.h new file mode 100644 index 000000000..cf0002b8c --- /dev/null +++ b/src/arrow/cpp/src/gandiva/regex_util.h @@ -0,0 +1,45 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +#pragma once + +#include <set> +#include <sstream> +#include <string> + +#include "gandiva/arrow.h" +#include "gandiva/visibility.h" + +namespace gandiva { + +/// \brief Utility class for converting sql patterns to pcre patterns. +class GANDIVA_EXPORT RegexUtil { + public: + // Convert an sql pattern to a pcre pattern + static Status SqlLikePatternToPcre(const std::string& like_pattern, char escape_char, + std::string& pcre_pattern); + + static Status SqlLikePatternToPcre(const std::string& like_pattern, + std::string& pcre_pattern) { + return SqlLikePatternToPcre(like_pattern, 0 /*escape_char*/, pcre_pattern); + } + + private: + static const std::set<char> pcre_regex_specials_; +}; + +} // namespace gandiva |