1 // fstarcsort.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 // Modified: jpr@google.com (Jake Ratkiewicz) to use FstClass
18 //
19 // \file
20 // Sorts arcs of an FST.
21 //
22
23 #include <string>
24
25 #include <fst/compat.h>
26 #include <fst/script/arcsort.h>
27
28 DEFINE_string(sort_type, "ilabel",
29 "Comparison method, one of: \"ilabel\", \"olabel\"");
30
main(int argc,char ** argv)31 int main(int argc, char **argv) {
32 using fst::script::FstClass;
33 using fst::script::MutableFstClass;
34 using fst::script::ArcSort;
35
36 string usage = "Sorts arcs of an FST.\n\n Usage: ";
37 usage += argv[0];
38 usage += " [in.fst [out.fst]]\n";
39
40 std::set_new_handler(FailedNewHandler);
41 SET_FLAGS(usage.c_str(), &argc, &argv, true);
42
43 if (argc > 3) {
44 ShowUsage();
45 return 1;
46 }
47
48 string in_name = (argc > 1 && (strcmp(argv[1], "-") != 0)) ? argv[1] : "";
49 string out_name = argc > 2 ? argv[2] : "";
50
51 MutableFstClass *fst = MutableFstClass::Read(in_name, true);
52 if (!fst) return 1;
53
54 if (FLAGS_sort_type == "ilabel") {
55 ArcSort(fst, fst::script::ILABEL_COMPARE);
56 } else if (FLAGS_sort_type == "olabel") {
57 ArcSort(fst, fst::script::OLABEL_COMPARE);
58 } else {
59 LOG(ERROR) << argv[0] << ": Unknown sort type \""
60 << FLAGS_sort_type << "\"\n";
61 return 1;
62 }
63
64 fst->Write(out_name);
65
66 return 0;
67 }
68