1 // fstprint.cc 2 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 // 15 // Copyright 2005-2010 Google, Inc. 16 // Author: riley (at) google.com (Michael Riley) 17 // Modified: jpr (at) google.com (Jake Ratkiewicz) to use FstClass 18 // 19 // \file 20 // Prints out binary FSTs in simple text format used by AT&T 21 // (see http://www.research.att.com/projects/mohri/fsm/doc4/fsm.5.html). 22 23 #include <fst/script/print.h> 24 25 DEFINE_bool(acceptor, false, "Input in acceptor format"); 26 DEFINE_string(isymbols, "", "Input label symbol table"); 27 DEFINE_string(osymbols, "", "Output label symbol table"); 28 DEFINE_string(ssymbols, "", "State label symbol table"); 29 DEFINE_bool(numeric, false, "Print numeric labels"); 30 DEFINE_string(save_isymbols, "", "Save input symbol table to file"); 31 DEFINE_string(save_osymbols, "", "Save output symbol table to file"); 32 DEFINE_bool(show_weight_one, false, 33 "Print/draw arc weights and final weights equal to Weight::One()"); 34 DEFINE_bool(allow_negative_labels, false, 35 "Allow negative labels (not recommended; may cause conflicts)"); 36 37 int main(int argc, char **argv) { 38 namespace s = fst::script; 39 using fst::ostream; 40 using fst::SymbolTable; 41 42 string usage = "Prints out binary FSTs in simple text format.\n\n Usage: "; 43 usage += argv[0]; 44 usage += " [binary.fst [text.fst]]\n"; 45 46 std::set_new_handler(FailedNewHandler); 47 SET_FLAGS(usage.c_str(), &argc, &argv, true); 48 if (argc > 3) { 49 ShowUsage(); 50 return 1; 51 } 52 53 string in_name = (argc > 1 && strcmp(argv[1], "-") != 0) ? argv[1] : ""; 54 string out_name = argc > 2 ? argv[2] : ""; 55 56 s::FstClass *fst = s::FstClass::Read(in_name); 57 if (!fst) return 1; 58 59 ostream *ostrm = &cout; 60 string dest = "standard output"; 61 if (argc == 3) { 62 dest = argv[2]; 63 ostrm = new fst::ofstream(argv[2]); 64 if (!*ostrm) { 65 LOG(ERROR) << argv[0] << ": Open failed, file = " << argv[2]; 66 return 1; 67 } 68 } 69 ostrm->precision(9); 70 71 const SymbolTable *isyms = 0, *osyms = 0, *ssyms = 0; 72 73 fst::SymbolTableTextOptions opts; 74 opts.allow_negative = FLAGS_allow_negative_labels; 75 76 if (!FLAGS_isymbols.empty() && !FLAGS_numeric) { 77 isyms = SymbolTable::ReadText(FLAGS_isymbols, opts); 78 if (!isyms) exit(1); 79 } 80 81 if (!FLAGS_osymbols.empty() && !FLAGS_numeric) { 82 osyms = SymbolTable::ReadText(FLAGS_osymbols, opts); 83 if (!osyms) exit(1); 84 } 85 86 if (!FLAGS_ssymbols.empty() && !FLAGS_numeric) { 87 ssyms = SymbolTable::ReadText(FLAGS_ssymbols); 88 if (!ssyms) exit(1); 89 } 90 91 if (!isyms && !FLAGS_numeric) 92 isyms = fst->InputSymbols(); 93 if (!osyms && !FLAGS_numeric) 94 osyms = fst->OutputSymbols(); 95 96 s::PrintFst(*fst, *ostrm, dest, isyms, osyms, ssyms, 97 FLAGS_acceptor, FLAGS_show_weight_one); 98 99 if (isyms && !FLAGS_save_isymbols.empty()) 100 isyms->WriteText(FLAGS_save_isymbols); 101 102 if (osyms && !FLAGS_save_osymbols.empty()) 103 osyms->WriteText(FLAGS_save_osymbols); 104 105 if (ostrm != &cout) 106 delete ostrm; 107 return 0; 108 } 109
