script-impl.cc
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// See www.openfst.org for extensive documentation on this weighted
// finite-state transducer library.
//
// Definitions and functions for invoking and using Far main functions that
// support multiple and extensible arc types.
#include <fst/extensions/far/script-impl.h>
#include <string>
#include <fst/extensions/far/far.h>
#include <fstream>
namespace fst {
namespace script {
string LoadArcTypeFromFar(const string &far_fname) {
FarHeader hdr;
if (!hdr.Read(far_fname)) {
LOG(ERROR) << "Error reading FAR: " << far_fname;
return "";
}
string atype = hdr.ArcType();
if (atype == "unknown") {
LOG(ERROR) << "Empty FST archive: " << far_fname;
return "";
}
return atype;
}
string LoadArcTypeFromFst(const string &fst_fname) {
FstHeader hdr;
std::ifstream in(fst_fname, std::ios_base::in | std::ios_base::binary);
if (!hdr.Read(in, fst_fname)) {
LOG(ERROR) << "Error reading FST: " << fst_fname;
return "";
}
return hdr.ArcType();
}
} // namespace script
} // namespace fst