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_RELABEL_H_
18#define FST_SCRIPT_RELABEL_H_
19
20#include <utility>
21using std::pair; using std::make_pair;
22#include <algorithm>
23#include <vector>
24using std::vector;
25
26#include <fst/script/arg-packs.h>
27#include <fst/script/fst-class.h>
28#include <fst/relabel.h>
29
30namespace fst {
31namespace script {
32
33// 1
34typedef args::Package<MutableFstClass *,
35                      const SymbolTable *, const SymbolTable *, bool,
36                      const SymbolTable *, const SymbolTable *,
37                      bool> RelabelArgs1;
38
39template<class Arc>
40void Relabel(RelabelArgs1 *args) {
41  MutableFst<Arc> *ofst = args->arg1->GetMutableFst<Arc>();
42
43  Relabel(ofst, args->arg2, args->arg3, args->arg4,
44          args->arg5, args->arg6, args->arg7);
45}
46
47// 2
48typedef args::Package<MutableFstClass*,
49                      const vector<pair<int64, int64> > &,
50                      const vector<pair<int64, int64> > > RelabelArgs2;
51
52template<class Arc>
53void Relabel(RelabelArgs2 *args) {
54  MutableFst<Arc> *ofst = args->arg1->GetMutableFst<Arc>();
55
56  // In case int64 is not the same as Arc::Label,
57  // copy the reassignments
58  typedef typename Arc::Label Label;
59
60  vector<pair<Label, Label> > converted_ipairs(args->arg2.size());
61  copy(args->arg2.begin(), args->arg2.end(), converted_ipairs.begin());
62
63  vector<pair<Label, Label> > converted_opairs(args->arg3.size());
64  copy(args->arg3.begin(), args->arg3.end(), converted_opairs.begin());
65
66  Relabel(ofst, converted_ipairs, converted_opairs);
67}
68
69// 3
70typedef args::Package<MutableFstClass*, const SymbolTable*,
71                      const SymbolTable*> RelabelArgs3;
72template<class Arc>
73void Relabel(args::Package<MutableFstClass*, const SymbolTable*,
74             const SymbolTable*> *args) {
75  MutableFst<Arc> *fst = args->arg1->GetMutableFst<Arc>();
76  Relabel(fst, args->arg2, args->arg3);
77}
78
79
80// 1
81void Relabel(MutableFstClass *ofst,
82             const SymbolTable *old_isyms, const SymbolTable *relabel_isyms,
83             bool attach_new_isyms,
84             const SymbolTable *old_osyms, const SymbolTable *relabel_osyms,
85             bool attch_new_osyms);
86
87// 2
88void Relabel(MutableFstClass *ofst,
89             const vector<pair<int64, int64> > &ipairs,
90             const vector<pair<int64, int64> > &opairs);
91
92
93// 3
94void Relabel(MutableFstClass *fst,
95             const SymbolTable *new_isymbols,
96             const SymbolTable *new_osymbols);
97
98
99}  // namespace script
100}  // namespace fst
101
102#endif  // FST_SCRIPT_RELABEL_H_
103