// Acknowledgement: this code is adapted from
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// https://github.com/wenet-e2e/WeTextProcessing/blob/master/runtime/processor/processor.h
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// Retrieved in Aug 2023.
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// Copyright (c) 2022 Zhendong Peng (pzd17@tsinghua.org.cn)
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// 2023 Jing Du (thuduj12@163.com)
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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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#ifndef ITN_PROCESSOR_H_
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#define ITN_PROCESSOR_H_
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#include "fst/fstlib.h"
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#include "precomp.h"
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#include "itn-token-parser.h"
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using fst::StdArc;
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using fst::StdVectorFst;
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using fst::StringCompiler;
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using fst::StringPrinter;
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namespace funasr {
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class ITNProcessor : public ITNModel {
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public:
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ITNProcessor();
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void InitITN(const std::string &itn_tagger, const std::string &itn_verbalizer, int thread_num);
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~ITNProcessor();
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std::string tag(const std::string& input);
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std::string verbalize(const std::string& input);
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std::string Normalize(const std::string& input);
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private:
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std::string shortest_path(const StdVectorFst& lattice);
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std::string compose(const std::string& input, const StdVectorFst* fst);
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ParseType parse_type_;
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std::shared_ptr<StdVectorFst> tagger_ = nullptr;
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std::shared_ptr<StdVectorFst> verbalizer_ = nullptr;
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std::shared_ptr<StringCompiler<StdArc>> compiler_ = nullptr;
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std::shared_ptr<StringPrinter<StdArc>> printer_ = nullptr;
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};
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} // namespace funasr
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#endif // ITN_PROCESSOR_H_
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