1f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// fstclosure.cc 2f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 3f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Licensed under the Apache License, Version 2.0 (the "License"); 4f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// you may not use this file except in compliance with the License. 5f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// You may obtain a copy of the License at 6f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// 7f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// http://www.apache.org/licenses/LICENSE-2.0 8f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// 9f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Unless required by applicable law or agreed to in writing, software 10f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// distributed under the License is distributed on an "AS IS" BASIS, 11f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// See the License for the specific language governing permissions and 13f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// limitations under the License. 14f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// 15f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Copyright 2005-2010 Google, Inc. 16f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Author: riley@google.com (Michael Riley) 17f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Modified: jpr@google.com (Jake Ratkiewicz) to use FstClass 18f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// 19f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// \file 20f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Creates the Kleene closure of an FST. 21f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// 22f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 23f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#include <fst/script/closure.h> 24f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 25f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian HodsonDEFINE_bool(closure_plus, false, 26f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson "Do not add the empty path (T+ instead of T*)"); 27f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 28f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodsonint main(int argc, char **argv) { 29f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson using fst::script::FstClass; 30f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson using fst::script::MutableFstClass; 31f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 32f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson string usage = "Creates the Kleene closure of an FST.\n\n Usage: "; 33f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson usage += argv[0]; 34f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson usage += " [in.fst [out.fst]]\n"; 35f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 36f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson std::set_new_handler(FailedNewHandler); 37dfd8b8327b93660601d016cdc6f29f433b45a8d8Alexander Gutkin SET_FLAGS(usage.c_str(), &argc, &argv, true); 38f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson if (argc > 3) { 39f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson ShowUsage(); 40f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson return 1; 41f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson } 42f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 43f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson string in_fname = (argc > 1 && strcmp(argv[1], "-") != 0) ? argv[1] : ""; 44f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson string out_fname = argc > 2 ? argv[2] : ""; 45f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 46f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson MutableFstClass *fst = MutableFstClass::Read(in_fname, true); 47f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson if (!fst) return 1; 48f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 49f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson fst::ClosureType closure_type = 50f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson FLAGS_closure_plus ? fst::CLOSURE_PLUS : fst::CLOSURE_STAR; 51f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 52f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson fst::script::Closure(fst, closure_type); 53f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson fst->Write(out_fname); 54f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 55f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson return 0; 56f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson} 57