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/replace.h>
20
21 namespace fst {
22 namespace script {
23
Replace(const vector<pair<int64,const FstClass * >> & tuples,MutableFstClass * ofst,const int64 & root,bool epsilon_on_replace)24 void Replace(const vector<pair<int64, const FstClass *> > &tuples,
25 MutableFstClass *ofst, const int64 &root,
26 bool epsilon_on_replace) {
27 for (unsigned i = 0; i < tuples.size() - 1; ++i) {
28 if (!ArcTypesMatch(*tuples[i].second, *tuples[i+1].second, "Replace")) {
29 return;
30 }
31 }
32
33 if (!ArcTypesMatch(*tuples[0].second, *ofst, "Replace")) return;
34
35 ReplaceArgs args(tuples, ofst, root, epsilon_on_replace);
36
37 Apply<Operation<ReplaceArgs> >("Replace", ofst->ArcType(), &args);
38 }
39
40 REGISTER_FST_OPERATION(Replace, StdArc, ReplaceArgs);
41 REGISTER_FST_OPERATION(Replace, LogArc, ReplaceArgs);
42 REGISTER_FST_OPERATION(Replace, Log64Arc, ReplaceArgs);
43
44 } // namespace script
45 } // namespace fst
46