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Support reading FST from stream in text normalizer #57

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merged 1 commit into from
Nov 5, 2023
Merged

Support reading FST from stream in text normalizer #57

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9 changes: 9 additions & 0 deletions kaldifst/csrc/text-normalizer.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,15 @@ TextNormalizer::TextNormalizer(const std::string &rule) {
CastOrConvertToConstFst(fst::ReadFstKaldiGeneric(rule)));
}

TextNormalizer::TextNormalizer(std::istream &is) {
fst::StdVectorFst *fst = new fst::StdVectorFst;
bool binary = true;
ReadFstKaldi(is, binary, fst);

// fst is released inside CastOrConvertToConstFst()
rule_ = std::unique_ptr<fst::StdConstFst>(CastOrConvertToConstFst(fst));
}

TextNormalizer::TextNormalizer(std::unique_ptr<fst::StdConstFst> rule)
: rule_(std::move(rule)) {}

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1 change: 1 addition & 0 deletions kaldifst/csrc/text-normalizer.h
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Expand Up @@ -17,6 +17,7 @@ class TextNormalizer {
public:
// Path to rule.fst
explicit TextNormalizer(const std::string &rule);
explicit TextNormalizer(std::istream &is);

explicit TextNormalizer(std::unique_ptr<fst::StdConstFst> rule);

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