relabel.h
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// See www.openfst.org for extensive documentation on this weighted
// finite-state transducer library.
#ifndef FST_SCRIPT_RELABEL_H_
#define FST_SCRIPT_RELABEL_H_
#include <algorithm>
#include <tuple>
#include <utility>
#include <vector>
#include <fst/relabel.h>
#include <fst/script/fst-class.h>
namespace fst {
namespace script {
using RelabelArgs1 = std::tuple<MutableFstClass *, const SymbolTable *,
const SymbolTable *, const string &, bool,
const SymbolTable *, const SymbolTable *,
const string &, bool>;
template <class Arc>
void Relabel(RelabelArgs1 *args) {
MutableFst<Arc> *ofst = std::get<0>(*args)->GetMutableFst<Arc>();
Relabel(ofst, std::get<1>(*args), std::get<2>(*args), std::get<3>(*args),
std::get<4>(*args), std::get<5>(*args), std::get<6>(*args),
std::get<7>(*args), std::get<8>(*args));
}
using LabelPair = std::pair<int64, int64>;
using RelabelArgs2 = std::tuple<MutableFstClass *,
const std::vector<LabelPair> &,
const std::vector<LabelPair> &>;
template <class Arc>
void Relabel(RelabelArgs2 *args) {
MutableFst<Arc> *ofst = std::get<0>(*args)->GetMutableFst<Arc>();
using LabelPair = std::pair<typename Arc::Label, typename Arc::Label>;
// In case the MutableFstClass::Label is not the same as Arc::Label,
// make a copy.
std::vector<LabelPair> typed_ipairs(std::get<1>(*args).size());
std::copy(std::get<1>(*args).begin(), std::get<1>(*args).end(),
typed_ipairs.begin());
std::vector<LabelPair> typed_opairs(std::get<2>(*args).size());
std::copy(std::get<2>(*args).begin(), std::get<2>(*args).end(),
typed_opairs.begin());
Relabel(ofst, typed_ipairs, typed_opairs);
}
void Relabel(MutableFstClass *ofst,
const SymbolTable *old_isymbols, const SymbolTable *new_isymbols,
const string &unknown_isymbol, bool attach_new_isymbols,
const SymbolTable *old_osymbols, const SymbolTable *new_osymbols,
const string &unknown_osymbol, bool attach_new_osymbols);
void Relabel(MutableFstClass *ofst, const std::vector<LabelPair> &ipairs,
const std::vector<LabelPair> &opairs);
} // namespace script
} // namespace fst
#endif // FST_SCRIPT_RELABEL_H_