1 // fstconnect.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 // Removes useless (inaccessible or non-coaccessible) states and arcs 21 // from an FST. 22 // 23 24 #include <fst/script/connect.h> 25 26 int main(int argc, char **argv) { 27 namespace s = fst::script; 28 using fst::script::FstClass; 29 using fst::script::MutableFstClass; 30 31 string usage = "Removes useless states and arcs from an FST.\n\n Usage: "; 32 usage += argv[0]; 33 usage += " [in.fst [out.fst]]\n"; 34 35 std::set_new_handler(FailedNewHandler); 36 SetFlags(usage.c_str(), &argc, &argv, true); 37 if (argc > 3) { 38 ShowUsage(); 39 return 1; 40 } 41 42 string in_name = (argc > 1 && strcmp(argv[1], "-") != 0) ? argv[1] : ""; 43 string out_name = argc > 2 ? argv[2] : ""; 44 45 MutableFstClass *fst = MutableFstClass::Read(in_name, true); 46 if (!fst) return 1; 47 48 s::Connect(fst); 49 fst->Write(out_name); 50 51 return 0; 52 } 53
