1f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 2f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Licensed under the Apache License, Version 2.0 (the "License"); 3f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// you may not use this file except in compliance with the License. 4f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// You may obtain a copy of the License at 5f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// 6f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// http://www.apache.org/licenses/LICENSE-2.0 7f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// 8f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Unless required by applicable law or agreed to in writing, software 9f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// distributed under the License is distributed on an "AS IS" BASIS, 10f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// See the License for the specific language governing permissions and 12f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// limitations under the License. 13f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// 14f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Copyright 2005-2010 Google, Inc. 15f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Author: johans@google.com (Johan Schalkwyk) 16f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Modified: jpr@google.com (Jake Ratkiewicz) to use FstClass 17f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// 18f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 19f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#include <fst/script/replace.h> 20f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 21f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian HodsonDEFINE_bool(epsilon_on_replace, false, "Create an espilon arc when recursing"); 22f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 23f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodsonint main(int argc, char **argv) { 24f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson namespace s = fst::script; 25f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson using fst::script::FstClass; 26f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson using fst::script::VectorFstClass; 27f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 28f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson string usage = "Recursively replaces FST arcs with other FST(s).\n\n" 29f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson " Usage: "; 30f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson usage += argv[0]; 31f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson usage += " root.fst rootlabel [rule1.fst label1 ...] [out.fst]\n"; 32f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 33f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson std::set_new_handler(FailedNewHandler); 34dfd8b8327b93660601d016cdc6f29f433b45a8d8Alexander Gutkin SET_FLAGS(usage.c_str(), &argc, &argv, true); 35f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson if (argc < 4) { 36f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson ShowUsage(); 37f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson return 1; 38f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson } 39f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 40f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson string in_fname = argv[1]; 41f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson string out_fname = argc % 2 == 0 ? argv[argc - 1] : ""; 42f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 43f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson FstClass *ifst = FstClass::Read(in_fname); 44f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson if (!ifst) return 1; 45f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 46f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson typedef int64 Label; 47f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson typedef pair<Label, const s::FstClass* > FstTuple; 48f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson vector<FstTuple> fst_tuples; 49f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson Label root = atoll(argv[2]); 50f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson fst_tuples.push_back(make_pair(root, ifst)); 51f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 52f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson for (size_t i = 3; i < argc - 1; i += 2) { 53f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson ifst = s::FstClass::Read(argv[i]); 54f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson if (!ifst) return 1; 55f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson Label lab = atoll(argv[i + 1]); 56f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson fst_tuples.push_back(make_pair(lab, ifst)); 57f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson } 58f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 59f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson VectorFstClass ofst(ifst->ArcType()); 60f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson Replace(fst_tuples, &ofst, root, FLAGS_epsilon_on_replace); 61f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 62f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson ofst.Write(out_fname); 63f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 64f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson return 0; 65f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson} 66