1 // pdtinfo.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: riley@google.com (Michael Riley)
17 //
18 // \file
19 // Prints out various information about a PDT such as number of
20 // states, arcs and parentheses.
21 //
22
23 #include <fst/extensions/pdt/pdtscript.h>
24 #include <fst/util.h>
25
26 DEFINE_string(pdt_parentheses, "", "PDT parenthesis label pairs.");
27
main(int argc,char ** argv)28 int main(int argc, char **argv) {
29 namespace s = fst::script;
30
31 string usage = "Prints out information about a PDT.\n\n Usage: ";
32 usage += argv[0];
33 usage += " in.pdt\n";
34
35
36 std::set_new_handler(FailedNewHandler);
37 SET_FLAGS(usage.c_str(), &argc, &argv, true);
38 if (argc > 2) {
39 ShowUsage();
40 return 1;
41 }
42
43 string in_name = (argc > 1 && (strcmp(argv[1], "-") != 0)) ? argv[1] : "";
44
45 s::FstClass *ifst = s::FstClass::Read(in_name);
46 if (!ifst) return 1;
47
48 if (FLAGS_pdt_parentheses.empty()) {
49 LOG(ERROR) << argv[0] << ": No PDT parenthesis label pairs provided";
50 return 1;
51 }
52
53 vector<pair<int64, int64> > parens;
54 fst::ReadLabelPairs(FLAGS_pdt_parentheses, &parens, false);
55
56 s::PrintPdtInfo(*ifst, parens);
57
58 return 0;
59 }
60