1f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// pdtreverse.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// 18f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// \file 19f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// Reverse a PDT. 20f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson// 21f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 22f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#include <fst/extensions/pdt/pdtscript.h> 23f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#include <fst/util.h> 24f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 25f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian HodsonDEFINE_string(pdt_parentheses, "", "PDT parenthesis label pairs."); 26f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 27f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodsonint main(int argc, char **argv) { 28f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson namespace s = fst::script; 29f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 30f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson string usage = "Reverse a PDT.\n\n Usage: "; 31f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson usage += argv[0]; 32f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson usage += " in.pdt [out.fst]\n"; 33f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 34f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson std::set_new_handler(FailedNewHandler); 35f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson SetFlags(usage.c_str(), &argc, &argv, true); 36f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson if (argc > 3) { 37f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson ShowUsage(); 38f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson return 1; 39f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson } 40f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 41f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson string in_name = (argc > 1 && (strcmp(argv[1], "-") != 0)) ? argv[1] : ""; 42f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson string out_name = argc > 2 ? argv[2] : ""; 43f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 44f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson s::FstClass *ifst = s::FstClass::Read(in_name); 45f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson if (!ifst) return 1; 46f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 47f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson if (FLAGS_pdt_parentheses.empty()) { 48f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson LOG(ERROR) << argv[0] << ": No PDT parenthesis label pairs provided"; 49f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson return 1; 50f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson } 51f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 52f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson vector<pair<int64, int64> > parens, rparens; 53f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson fst::ReadLabelPairs(FLAGS_pdt_parentheses, &parens, false); 54f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 55f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson s::VectorFstClass ofst(ifst->ArcType()); 56f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson s::PdtReverse(*ifst, parens, &ofst); 57f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 58f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson ofst.Write(out_name); 59f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 60f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson return 0; 61f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson} 62