push.h
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// See www.openfst.org for extensive documentation on this weighted
// finite-state transducer library.
#ifndef FST_SCRIPT_PUSH_H_
#define FST_SCRIPT_PUSH_H_
#include <tuple>
#include <fst/push.h>
#include <fst/script/fst-class.h>
namespace fst {
namespace script {
using PushArgs1 = std::tuple<MutableFstClass *, ReweightType, float, bool>;
template <class Arc>
void Push(PushArgs1 *args) {
MutableFst<Arc> *fst = std::get<0>(*args)->GetMutableFst<Arc>();
Push(fst, std::get<1>(*args), std::get<2>(*args), std::get<3>(*args));
}
using PushArgs2 = std::tuple<const FstClass &, MutableFstClass *, uint32,
ReweightType, float>;
template <class Arc>
void Push(PushArgs2 *args) {
const Fst<Arc> &ifst = *(std::get<0>(*args).GetFst<Arc>());
MutableFst<Arc> *ofst = std::get<1>(*args)->GetMutableFst<Arc>();
switch (std::get<3>(*args)) {
case REWEIGHT_TO_FINAL: {
Push<Arc, REWEIGHT_TO_FINAL>(ifst, ofst, std::get<2>(*args),
std::get<4>(*args));
return;
}
case REWEIGHT_TO_INITIAL: {
Push<Arc, REWEIGHT_TO_INITIAL>(ifst, ofst, std::get<2>(*args),
std::get<4>(*args));
return;
}
}
}
void Push(MutableFstClass *fst, ReweightType rew_type, float delta = kDelta,
bool remove_total_weight = false);
void Push(const FstClass &ifst, MutableFstClass *ofst, uint32 flags,
ReweightType rew_type, float delta = kDelta);
} // namespace script
} // namespace fst
#endif // FST_SCRIPT_PUSH_H_