FST  openfst-1.8.3
OpenFst Library
concat.cc
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1 // Copyright 2005-2024 Google LLC
2 //
3 // Licensed under the Apache License, Version 2.0 (the 'License');
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an 'AS IS' BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 //
15 // See www.openfst.org for extensive documentation on this weighted
16 // finite-state transducer library.
17 
18 #include <fst/script/concat.h>
19 
20 #include <vector>
21 
22 #include <fst/properties.h>
23 #include <fst/script/fst-class.h>
24 #include <fst/script/script-impl.h>
25 
26 namespace fst {
27 namespace script {
28 
29 void Concat(MutableFstClass *fst1, const FstClass &fst2) {
30  if (!internal::ArcTypesMatch(*fst1, fst2, "Concat")) {
31  fst1->SetProperties(kError, kError);
32  return;
33  }
34  FstConcatArgs1 args{fst1, fst2};
35  Apply<Operation<FstConcatArgs1>>("Concat", fst1->ArcType(), &args);
36 }
37 
38 void Concat(const FstClass &fst1, MutableFstClass *fst2) {
39  if (!internal::ArcTypesMatch(fst1, *fst2, "Concat")) {
40  fst2->SetProperties(kError, kError);
41  return;
42  }
43  FstConcatArgs2 args{fst1, fst2};
44  Apply<Operation<FstConcatArgs2>>("Concat", fst2->ArcType(), &args);
45 }
46 
47 void Concat(const std::vector<FstClass *> &fsts1, MutableFstClass *fst2) {
48  for (const auto *fst1 : fsts1) {
49  if (!internal::ArcTypesMatch(*fst1, *fst2, "Concat")) {
50  fst2->SetProperties(kError, kError);
51  return;
52  }
53  }
54  FstConcatArgs3 args{fsts1, fst2};
55  Apply<Operation<FstConcatArgs3>>("Concat", fst2->ArcType(), &args);
56 }
57 
61 
62 } // namespace script
63 } // namespace fst
REGISTER_FST_OPERATION_3ARCS(Compress, CompressArgs)
constexpr uint64_t kError
Definition: properties.h:52
const std::string & ArcType() const final
Definition: fst-class.h:329
bool ArcTypesMatch(const M &m, const N &n, const std::string &op_name)
Definition: script-impl.h:195
std::pair< MutableFstClass *, const FstClass & > FstConcatArgs1
Definition: concat.h:32
std::pair< const std::vector< FstClass * > &, MutableFstClass * > FstConcatArgs3
Definition: concat.h:51
std::pair< const FstClass &, MutableFstClass * > FstConcatArgs2
Definition: concat.h:41
void SetProperties(uint64_t props, uint64_t mask)
Definition: fst-class.h:501
void Concat(FstConcatArgs1 *args)
Definition: concat.h:35