// See www.openfst.org for extensive documentation on this weighted // finite-state transducer library. // // Draws a binary FSTs in the Graphviz dot text format. #include #include #include #include #include #include #include #include DECLARE_bool(acceptor); DECLARE_string(isymbols); DECLARE_string(osymbols); DECLARE_string(ssymbols); DECLARE_bool(numeric); DECLARE_int32(precision); DECLARE_string(float_format); DECLARE_bool(show_weight_one); DECLARE_string(title); DECLARE_bool(portrait); DECLARE_bool(vertical); DECLARE_int32(fontsize); DECLARE_double(height); DECLARE_double(width); DECLARE_double(nodesep); DECLARE_double(ranksep); DECLARE_bool(allow_negative_labels); int fstdraw_main(int argc, char **argv) { namespace s = fst::script; using fst::script::FstClass; using fst::SymbolTable; using fst::SymbolTableTextOptions; string usage = "Prints out binary FSTs in dot text format.\n\n Usage: "; usage += argv[0]; usage += " [binary.fst [text.dot]]\n"; std::set_new_handler(FailedNewHandler); SET_FLAGS(usage.c_str(), &argc, &argv, true); if (argc > 3) { ShowUsage(); return 1; } const string in_name = (argc > 1 && strcmp(argv[1], "-") != 0) ? argv[1] : ""; std::unique_ptr fst(FstClass::Read(in_name)); if (!fst) return 1; string dest = "stdout"; std::ofstream fstrm; if (argc == 3) { fstrm.open(argv[2]); if (!fstrm) { LOG(ERROR) << argv[0] << ": Open failed, file = " << argv[2]; return 1; } dest = argv[2]; } std::ostream &ostrm = fstrm.is_open() ? fstrm : std::cout; const SymbolTableTextOptions opts(FLAGS_allow_negative_labels); std::unique_ptr isyms; if (!FLAGS_isymbols.empty() && !FLAGS_numeric) { isyms.reset(SymbolTable::ReadText(FLAGS_isymbols, opts)); if (!isyms) return 1; } std::unique_ptr osyms; if (!FLAGS_osymbols.empty() && !FLAGS_numeric) { osyms.reset(SymbolTable::ReadText(FLAGS_osymbols, opts)); if (!osyms) return 1; } std::unique_ptr ssyms; if (!FLAGS_ssymbols.empty() && !FLAGS_numeric) { ssyms.reset(SymbolTable::ReadText(FLAGS_ssymbols)); if (!ssyms) return 1; } if (!isyms && !FLAGS_numeric && fst->InputSymbols()) { isyms.reset(fst->InputSymbols()->Copy()); } if (!osyms && !FLAGS_numeric && fst->OutputSymbols()) { osyms.reset(fst->OutputSymbols()->Copy()); } s::DrawFst(*fst, isyms.get(), osyms.get(), ssyms.get(), FLAGS_acceptor, FLAGS_title, FLAGS_width, FLAGS_height, FLAGS_portrait, FLAGS_vertical, FLAGS_ranksep, FLAGS_nodesep, FLAGS_fontsize, FLAGS_precision, FLAGS_float_format, FLAGS_show_weight_one, &ostrm, dest); return 0; }