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+// 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