fstinfo-main.cc
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// See www.openfst.org for extensive documentation on this weighted
// finite-state transducer library.
//
// Prints out various information about an FST such as number of states
// and arcs and property values (see properties.h).
#include <cstring>
#include <memory>
#include <string>
#include <fst/flags.h>
#include <fst/script/info.h>
DECLARE_string(arc_filter);
DECLARE_string(info_type);
DECLARE_bool(pipe);
DECLARE_bool(test_properties);
DECLARE_bool(fst_verify);
int fstinfo_main(int argc, char **argv) {
namespace s = fst::script;
using fst::script::FstClass;
string usage = "Prints out information about an FST.\n\n Usage: ";
usage += argv[0];
usage += " [in.fst]\n";
std::set_new_handler(FailedNewHandler);
SET_FLAGS(usage.c_str(), &argc, &argv, true);
if (argc > 2) {
ShowUsage();
return 1;
}
const string in_name =
(argc > 1 && (strcmp(argv[1], "-") != 0)) ? argv[1] : "";
std::unique_ptr<FstClass> ifst(FstClass::Read(in_name));
if (!ifst) return 1;
s::PrintFstInfo(*ifst, FLAGS_test_properties, FLAGS_arc_filter,
FLAGS_info_type, FLAGS_fst_verify, FLAGS_pipe);
return 0;
}