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tools/openfst-1.6.7/include/fst/script/print.h
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// See www.openfst.org for extensive documentation on this weighted
// finite-state transducer library.
#ifndef FST_SCRIPT_PRINT_H_
#define FST_SCRIPT_PRINT_H_
#include <ostream>
#include <fst/flags.h>
#include <fst/script/fst-class.h>
#include <fst/script/print-impl.h>
DECLARE_string(fst_field_separator);
namespace fst {
namespace script {
// Note: it is safe to pass these strings as references because
// this struct is only used to pass them deeper in the call graph.
// Be sure you understand why this is so before using this struct
// for anything else!
struct FstPrinterArgs {
const FstClass &fst;
const SymbolTable *isyms;
const SymbolTable *osyms;
const SymbolTable *ssyms;
const bool accept;
const bool show_weight_one;
std::ostream *ostrm;
const string &dest;
const string &sep; // NOLINT
const string &missing_symbol;
FstPrinterArgs(const FstClass &fst, const SymbolTable *isyms,
const SymbolTable *osyms, const SymbolTable *ssyms,
bool accept, bool show_weight_one, std::ostream *ostrm,
const string &dest, const string &sep,
const string &missing_sym = "")
: fst(fst),
isyms(isyms),
osyms(osyms),
ssyms(ssyms),
accept(accept),
show_weight_one(show_weight_one),
ostrm(ostrm),
dest(dest),
sep(sep),
missing_symbol(missing_sym) {}
};
template <class Arc>
void PrintFst(FstPrinterArgs *args) {
const Fst<Arc> &fst = *(args->fst.GetFst<Arc>());
FstPrinter<Arc> fstprinter(fst, args->isyms, args->osyms, args->ssyms,
args->accept, args->show_weight_one, args->sep,
args->missing_symbol);
fstprinter.Print(args->ostrm, args->dest);
}
void PrintFst(const FstClass &fst, std::ostream &ostrm, const string &dest,
const SymbolTable *isyms, const SymbolTable *osyms,
const SymbolTable *ssyms, bool accept, bool show_weight_one,
const string &missing_sym = "");
// The same, but with more sensible defaults.
template <class Arc>
void PrintFst(const Fst<Arc> &fst, std::ostream &ostrm, const string &dest = "",
const SymbolTable *isyms = nullptr,
const SymbolTable *osyms = nullptr,
const SymbolTable *ssyms = nullptr) {
const string sep = FLAGS_fst_field_separator.substr(0, 1);
FstPrinter<Arc> fstprinter(fst, isyms, osyms, ssyms, true, true, sep);
fstprinter.Print(&ostrm, dest);
}
} // namespace script
} // namespace fst
#endif // FST_SCRIPT_PRINT_H_
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