/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LIBTEXTCLASSIFIER_UTILS_REGEX_MATCH_H_
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#define LIBTEXTCLASSIFIER_UTILS_REGEX_MATCH_H_
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#include "utils/flatbuffers.h"
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#include "utils/flatbuffers_generated.h"
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#include "utils/utf8/unilib.h"
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namespace libtextclassifier3 {
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// Sets a field in the flatbuffer from a regex match group.
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// Returns true if successful, and false if the field couldn't be set.
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bool SetFieldFromCapturingGroup(const int group_id,
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const FlatbufferFieldPath* field_path,
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const UniLib::RegexMatcher* matcher,
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ReflectiveFlatbuffer* flatbuffer);
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// Post-checks a regular expression match with a lua verifier script.
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// The verifier can access:
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// * `context`: The context as a string.
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// * `match`: The groups of the regex match as an array, each group gives
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// * `begin`: span start
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// * `end`: span end
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// * `text`: the text
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// The verifier is expected to return a boolean, indicating whether the
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// verification succeeded or not.
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// Returns true if the verification was successful, false if not.
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bool VerifyMatch(const std::string& context,
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const UniLib::RegexMatcher* matcher,
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const std::string& lua_verifier_code);
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} // namespace libtextclassifier3
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#endif // LIBTEXTCLASSIFIER_UTILS_REGEX_MATCH_H_
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