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_PRINT_H_
18 #define FST_SCRIPT_PRINT_H_
19
20 #include <fst/script/arg-packs.h>
21 #include <fst/script/fst-class.h>
22 #include <fst/script/print-impl.h>
23
24 namespace fst {
25 namespace script {
26
27 // Note: it is safe to pass these strings as references because
28 // this struct is only used to pass them deeper in the call graph.
29 // Be sure you understand why this is so before using this struct
30 // for anything else!
31 struct FstPrinterArgs {
32 const FstClass &fst;
33 const SymbolTable *isyms;
34 const SymbolTable *osyms;
35 const SymbolTable *ssyms;
36 const bool accept;
37 const bool show_weight_one;
38 ostream *ostrm;
39 const string &dest;
40
FstPrinterArgsFstPrinterArgs41 FstPrinterArgs(const FstClass &fst,
42 const SymbolTable *isyms,
43 const SymbolTable *osyms,
44 const SymbolTable *ssyms,
45 bool accept,
46 bool show_weight_one,
47 ostream *ostrm,
48 const string &dest) :
49 fst(fst), isyms(isyms), osyms(osyms), ssyms(ssyms), accept(accept),
50 show_weight_one(show_weight_one), ostrm(ostrm), dest(dest) { }
51 };
52
53 template<class Arc>
PrintFst(FstPrinterArgs * args)54 void PrintFst(FstPrinterArgs *args) {
55 const Fst<Arc> &fst = *(args->fst.GetFst<Arc>());
56
57 fst::FstPrinter<Arc> fstprinter(fst, args->isyms, args->osyms,
58 args->ssyms, args->accept,
59 args->show_weight_one);
60 fstprinter.Print(args->ostrm, args->dest);
61 }
62
63 void PrintFst(const FstClass &fst, ostream &ostrm, const string &dest,
64 const SymbolTable *isyms,
65 const SymbolTable *osyms,
66 const SymbolTable *ssyms,
67 bool accept, bool show_weight_one);
68
69
70 // Below are two printing methods with useful defaults for a few of
71 // the fst printer arguments.
72 template <class Arc>
73 void PrintFst(const Fst<Arc> &fst, ostream &os, const string dest = "",
74 const SymbolTable *isyms = NULL,
75 const SymbolTable *osyms = NULL,
76 const SymbolTable *ssyms = NULL) {
77 fst::FstPrinter<Arc> fstprinter(fst, isyms, osyms, ssyms, true, true);
78 fstprinter.Print(&os, dest);
79 }
80
81 } // namespace script
82 } // namespace fst
83
84
85
86 #endif // FST_SCRIPT_PRINT_H_
87