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 #include <fst/script/fst-class.h>
18 #include <fst/script/script-impl.h>
19 #include <fst/script/difference.h>
20
21 namespace fst {
22 namespace script {
23
Difference(const FstClass & ifst1,const FstClass & ifst2,MutableFstClass * ofst,ComposeFilter compose_filter)24 void Difference(const FstClass &ifst1, const FstClass &ifst2,
25 MutableFstClass *ofst, ComposeFilter compose_filter) {
26 if (!ArcTypesMatch(ifst1, ifst2, "Difference") ||
27 !ArcTypesMatch(*ofst, ifst1, "Difference")) return;
28
29 DifferenceArgs1 args(ifst1, ifst2, ofst, compose_filter);
30 Apply<Operation<DifferenceArgs1> >("Difference", ifst1.ArcType(), &args);
31 }
32
Difference(const FstClass & ifst1,const FstClass & ifst2,MutableFstClass * ofst,const ComposeOptions & copts)33 void Difference(const FstClass &ifst1, const FstClass &ifst2,
34 MutableFstClass *ofst, const ComposeOptions &copts) {
35 if (!ArcTypesMatch(ifst1, ifst2, "Difference") ||
36 !ArcTypesMatch(*ofst, ifst1, "Difference")) return;
37
38 DifferenceArgs2 args(ifst1, ifst2, ofst, copts);
39 Apply<Operation<DifferenceArgs2> >("Difference", ifst1.ArcType(), &args);
40 }
41
42 REGISTER_FST_OPERATION(Difference, StdArc, DifferenceArgs1);
43 REGISTER_FST_OPERATION(Difference, LogArc, DifferenceArgs1);
44 REGISTER_FST_OPERATION(Difference, Log64Arc, DifferenceArgs1);
45 REGISTER_FST_OPERATION(Difference, StdArc, DifferenceArgs2);
46 REGISTER_FST_OPERATION(Difference, LogArc, DifferenceArgs2);
47 REGISTER_FST_OPERATION(Difference, Log64Arc, DifferenceArgs2);
48
49 } // namespace script
50 } // namespace fst
51