fstencode-main.cc
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// See www.openfst.org for extensive documentation on this weighted
// finite-state transducer library.
//
// Encode transducer labels and/or weights.
#include <cstring>
#include <memory>
#include <string>
#include <fst/flags.h>
#include <fst/script/decode.h>
#include <fst/script/encode.h>
#include <fst/script/getters.h>
DECLARE_bool(encode_labels);
DECLARE_bool(encode_weights);
DECLARE_bool(encode_reuse);
DECLARE_bool(decode);
int fstencode_main(int argc, char **argv) {
namespace s = fst::script;
using fst::script::FstClass;
using fst::script::MutableFstClass;
string usage = "Encodes transducer labels and/or weights.\n\n Usage: ";
usage += argv[0];
usage += " in.fst codex [out.fst]\n";
std::set_new_handler(FailedNewHandler);
SET_FLAGS(usage.c_str(), &argc, &argv, true);
if (argc < 3 || argc > 4) {
ShowUsage();
return 1;
}
const string in_name = (strcmp(argv[1], "-") != 0) ? argv[1] : "";
const string codex_name = argv[2];
const string out_name = argc > 3 ? argv[3] : "";
std::unique_ptr<MutableFstClass> fst(MutableFstClass::Read(in_name, true));
if (!fst) return 1;
if (FLAGS_decode) {
s::Decode(fst.get(), codex_name);
return !fst->Write(out_name);
} else {
const auto flags =
s::GetEncodeFlags(FLAGS_encode_labels, FLAGS_encode_weights);
s::Encode(fst.get(), flags, FLAGS_encode_reuse, codex_name);
return !fst->Write(out_name);
}
}