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
25 namespace fst {
26 namespace script {
27
28 typedef args::Package<const FstClass&, const FstClass&,
29 MutableFstClass*, ComposeFilter> DifferenceArgs1;
30
31 template<class Arc>
Difference(DifferenceArgs1 * args)32 void 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
40 typedef args::Package<const FstClass&, const FstClass&,
41 MutableFstClass*, const ComposeOptions &> DifferenceArgs2;
42
43 template<class Arc>
Difference(DifferenceArgs2 * args)44 void 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
53 void Difference(const FstClass &ifst1, const FstClass &ifst2,
54 MutableFstClass *ofst,
55 ComposeFilter compose_filter);
56
57 void 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