1 2// Licensed under the Apache License, Version 2.0 (the "License"); 3// you may not use this file except in compliance with the License. 4// You may obtain a copy of the License at 5// 6// http://www.apache.org/licenses/LICENSE-2.0 7// 8// Unless required by applicable law or agreed to in writing, software 9// distributed under the License is distributed on an "AS IS" BASIS, 10// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11// See the License for the specific language governing permissions and 12// limitations under the License. 13// 14// Copyright 2005-2010 Google, Inc. 15// Author: jpr@google.com (Jake Ratkiewicz) 16 17#ifndef FST_SCRIPT_DIFFERENCE_H_ 18#define FST_SCRIPT_DIFFERENCE_H_ 19 20#include <fst/script/arg-packs.h> 21#include <fst/script/fst-class.h> 22#include <fst/script/compose.h> // for ComposeFilter 23#include <fst/difference.h> 24 25namespace fst { 26namespace script { 27 28typedef args::Package<const FstClass&, const FstClass&, 29 MutableFstClass*, ComposeFilter> DifferenceArgs1; 30 31template<class Arc> 32void Difference(DifferenceArgs1 *args) { 33 const Fst<Arc> &ifst1 = *(args->arg1.GetFst<Arc>()); 34 const Fst<Arc> &ifst2 = *(args->arg2.GetFst<Arc>()); 35 MutableFst<Arc> *ofst = args->arg3->GetMutableFst<Arc>(); 36 37 Difference(ifst1, ifst2, ofst, args->arg4); 38} 39 40typedef args::Package<const FstClass&, const FstClass&, 41 MutableFstClass*, const ComposeOptions &> DifferenceArgs2; 42 43template<class Arc> 44void Difference(DifferenceArgs2 *args) { 45 const Fst<Arc> &ifst1 = *(args->arg1.GetFst<Arc>()); 46 const Fst<Arc> &ifst2 = *(args->arg2.GetFst<Arc>()); 47 MutableFst<Arc> *ofst = args->arg3->GetMutableFst<Arc>(); 48 49 Difference(ifst1, ifst2, ofst, args->arg4); 50} 51 52 53void Difference(const FstClass &ifst1, const FstClass &ifst2, 54 MutableFstClass *ofst, 55 ComposeFilter compose_filter); 56 57void Difference(const FstClass &ifst1, const FstClass &ifst2, 58 MutableFstClass *ofst, 59 const ComposeOptions &opts = fst::script::ComposeOptions()); 60 61 62} // namespace script 63} // namespace fst 64 65 66 67#endif // FST_SCRIPT_DIFFERENCE_H_ 68