• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 // fstdraw.cc
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 // Copyright 2005-2010 Google, Inc.
16 // Author: allauzen@google.com (Cyril Allauzen)
17 // Modified: jpr@google.com (Jake Ratkiewicz) to use FstClass
18 //
19 // \file
20 // Draws a binary FSTs in the Graphviz dot text format
21 
22 #include <fst/script/draw.h>
23 
24 DEFINE_bool(acceptor, false, "Input in acceptor format");
25 DEFINE_string(isymbols, "", "Input label symbol table");
26 DEFINE_string(osymbols, "", "Output label symbol table");
27 DEFINE_string(ssymbols, "", "State label symbol table");
28 DEFINE_bool(numeric, false, "Print numeric labels");
29 DEFINE_int32(precision, 5, "Set precision (number of char/float)");
30 DEFINE_bool(show_weight_one, false,
31             "Print/draw arc weights and final weights equal to Weight::One()");
32 DEFINE_string(title, "", "Set figure title");
33 DEFINE_bool(portrait, false, "Portrait mode (def: landscape)");
34 DEFINE_bool(vertical, false, "Draw bottom-to-top instead of left-to-right");
35 DEFINE_int32(fontsize, 14, "Set fontsize");
36 DEFINE_double(height, 11, "Set height");
37 DEFINE_double(width, 8.5, "Set width");
38 DEFINE_double(nodesep, 0.25,
39               "Set minimum separation between nodes (see dot documentation)");
40 DEFINE_double(ranksep, 0.40,
41               "Set minimum separation between ranks (see dot documentation)");
42 DEFINE_bool(allow_negative_labels, false,
43             "Allow negative labels (not recommended; may cause conflicts)");
44 
main(int argc,char ** argv)45 int main(int argc, char **argv) {
46   namespace s = fst::script;
47   using fst::ostream;
48   using fst::SymbolTable;
49 
50   string usage = "Prints out binary FSTs in dot text format.\n\n  Usage: ";
51   usage += argv[0];
52   usage += " [binary.fst [text.dot]]\n";
53 
54   std::set_new_handler(FailedNewHandler);
55   SET_FLAGS(usage.c_str(), &argc, &argv, true);
56   if (argc > 3) {
57     ShowUsage();
58     return 1;
59   }
60 
61   string in_name = (argc > 1 && strcmp(argv[1], "-") != 0) ? argv[1] : "";
62 
63   s::FstClass *fst = s::FstClass::Read(in_name);
64   if (!fst) return 1;
65 
66   ostream *ostrm = &cout;
67   string dest = "stdout";
68   if (argc == 3) {
69     dest = argv[2];
70     ostrm = new fst::ofstream(argv[2]);
71     if (!*ostrm) {
72       LOG(ERROR) << argv[0] << ": Open failed, file = " << argv[2];
73       return 1;
74     }
75   }
76   ostrm->precision(FLAGS_precision);
77 
78   const SymbolTable *isyms = 0, *osyms = 0, *ssyms = 0;
79 
80   fst::SymbolTableTextOptions opts;
81   opts.allow_negative = FLAGS_allow_negative_labels;
82 
83   if (!FLAGS_isymbols.empty() && !FLAGS_numeric) {
84     isyms = SymbolTable::ReadText(FLAGS_isymbols, opts);
85     if (!isyms) exit(1);
86   }
87 
88   if (!FLAGS_osymbols.empty() && !FLAGS_numeric) {
89     osyms = SymbolTable::ReadText(FLAGS_osymbols, opts);
90     if (!osyms) exit(1);
91   }
92 
93   if (!FLAGS_ssymbols.empty() && !FLAGS_numeric) {
94     ssyms = SymbolTable::ReadText(FLAGS_ssymbols);
95     if (!ssyms) exit(1);
96   }
97 
98   if (!isyms && !FLAGS_numeric)
99     isyms = fst->InputSymbols();
100   if (!osyms && !FLAGS_numeric)
101     osyms = fst->OutputSymbols();
102 
103   s::DrawFst(*fst, isyms, osyms, ssyms,  FLAGS_acceptor,
104              FLAGS_title, FLAGS_width, FLAGS_height,
105              FLAGS_portrait, FLAGS_vertical,
106              FLAGS_ranksep, FLAGS_nodesep,
107              FLAGS_fontsize, FLAGS_precision,
108              FLAGS_show_weight_one, ostrm, dest);
109 
110   if (ostrm != &cout)
111     delete ostrm;
112   return 0;
113 }
114