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// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Copyright 2005-2010 Google, Inc.
// Author: jpr@google.com (Jake Ratkiewicz)
#ifndef FST_SCRIPT_DIFFERENCE_H_
#define FST_SCRIPT_DIFFERENCE_H_
#include <fst/script/arg-packs.h>
#include <fst/script/fst-class.h>
#include <fst/script/compose.h> // for ComposeFilter
#include <fst/difference.h>
namespace fst {
namespace script {
typedef args::Package<const FstClass&, const FstClass&,
MutableFstClass*, ComposeFilter> DifferenceArgs1;
template<class Arc>
void Difference(DifferenceArgs1 *args) {
const Fst<Arc> &ifst1 = *(args->arg1.GetFst<Arc>());
const Fst<Arc> &ifst2 = *(args->arg2.GetFst<Arc>());
MutableFst<Arc> *ofst = args->arg3->GetMutableFst<Arc>();
Difference(ifst1, ifst2, ofst, args->arg4);
}
typedef args::Package<const FstClass&, const FstClass&,
MutableFstClass*, const ComposeOptions &> DifferenceArgs2;
template<class Arc>
void Difference(DifferenceArgs2 *args) {
const Fst<Arc> &ifst1 = *(args->arg1.GetFst<Arc>());
const Fst<Arc> &ifst2 = *(args->arg2.GetFst<Arc>());
MutableFst<Arc> *ofst = args->arg3->GetMutableFst<Arc>();
Difference(ifst1, ifst2, ofst, args->arg4);
}
void Difference(const FstClass &ifst1, const FstClass &ifst2,
MutableFstClass *ofst,
ComposeFilter compose_filter);
void Difference(const FstClass &ifst1, const FstClass &ifst2,
MutableFstClass *ofst,
const ComposeOptions &opts = fst::script::ComposeOptions());
} // namespace script
} // namespace fst
#endif // FST_SCRIPT_DIFFERENCE_H_
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