// See www.openfst.org for extensive documentation on this weighted
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// finite-state transducer library.
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#ifndef FST_SCRIPT_ENCODE_H_
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#define FST_SCRIPT_ENCODE_H_
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#include <memory>
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#include <string>
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#include <tuple>
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#include <utility>
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#include <fst/encode.h>
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#include <fst/script/encodemapper-class.h>
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#include <fst/script/fst-class.h>
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namespace fst {
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namespace script {
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using EncodeArgs1 = std::tuple<MutableFstClass *, uint32, bool, const string &>;
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template <class Arc>
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void Encode(EncodeArgs1 *args) {
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MutableFst<Arc> *fst = std::get<0>(*args)->GetMutableFst<Arc>();
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const string &coder_fname = std::get<3>(*args);
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// If true, reuse encode from disk. If false, make a new encoder and just use
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// the filename argument as the destination state.
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std::unique_ptr<EncodeMapper<Arc>> encoder(
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std::get<2>(*args) ? EncodeMapper<Arc>::Read(coder_fname, ENCODE)
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: new EncodeMapper<Arc>(std::get<1>(*args), ENCODE));
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Encode(fst, encoder.get());
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if (!std::get<2>(*args)) encoder->Write(coder_fname);
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}
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using EncodeArgs2 = std::pair<MutableFstClass *, EncodeMapperClass *>;
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template <class Arc>
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void Encode(EncodeArgs2 *args) {
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MutableFst<Arc> *fst = std::get<0>(*args)->GetMutableFst<Arc>();
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EncodeMapper<Arc> *encoder = std::get<1>(*args)->GetEncodeMapper<Arc>();
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Encode(fst, encoder);
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}
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void Encode(MutableFstClass *fst, uint32 flags, bool reuse_encoder,
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const string &coder_fname);
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void Encode(MutableFstClass *fst, EncodeMapperClass *encoder);
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} // namespace script
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} // namespace fst
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#endif // FST_SCRIPT_ENCODE_H_
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