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: jpr@google.com (Jake Ratkiewicz) 16f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 17f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#ifndef FST_SCRIPT_REPLACE_H_ 18f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#define FST_SCRIPT_REPLACE_H_ 19f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 20f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#include <utility> 21f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodsonusing std::pair; using std::make_pair; 22f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#include <vector> 23f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodsonusing std::vector; 24f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 25f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#include <fst/script/arg-packs.h> 26f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#include <fst/script/fst-class.h> 27f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#include <fst/replace.h> 28f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 29f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodsonnamespace fst { 30f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodsonnamespace script { 31f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 32f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodsontypedef args::Package<const vector<pair<int64, const FstClass *> > &, 33f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson MutableFstClass *, const int64, bool> ReplaceArgs; 34f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 35f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodsontemplate<class Arc> 36f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodsonvoid Replace(ReplaceArgs *args) { 37f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson // Now that we know the arc type, we construct a vector of 38f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson // pair<real label, real fst> that the real Replace will use 39f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson const vector<pair<int64, const FstClass *> >& untyped_tuples = 40f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson args->arg1; 41f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 42f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson vector<pair<typename Arc::Label, const Fst<Arc> *> > fst_tuples( 43f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson untyped_tuples.size()); 44f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 45f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson for (unsigned i = 0; i < untyped_tuples.size(); ++i) { 46f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson fst_tuples[i].first = untyped_tuples[i].first; // convert label 47f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson fst_tuples[i].second = untyped_tuples[i].second->GetFst<Arc>(); 48f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson } 49f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 50f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson MutableFst<Arc> *ofst = args->arg2->GetMutableFst<Arc>(); 51f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 52f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson Replace(fst_tuples, ofst, args->arg3, args->arg4); 53f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson} 54f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 55f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodsonvoid Replace(const vector<pair<int64, const FstClass *> > &tuples, 56f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson MutableFstClass *ofst, const int64 &root, 57f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson bool epsilon_on_replace = false); 58f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 59f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson} // namespace script 60f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson} // namespace fst 61f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson 62f4c12fce1ee58e670f9c3fce46c40296ba9ee8a2Ian Hodson#endif // FST_SCRIPT_REPLACE_H_ 63