1 // fstequal.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 // Two FSTS are equal iff they their exit status is zero.
21 //
22
23 #include <fst/script/equal.h>
24
25 DEFINE_double(delta, fst::kDelta, "Comparison/quantization delta");
26
main(int argc,char ** argv)27 int main(int argc, char **argv) {
28 namespace s = fst::script;
29 using fst::script::FstClass;
30
31 string usage = "Two FSTs are equal iff the exit status is zero.\n\n Usage: ";
32 usage += argv[0];
33 usage += " in1.fst in2.fst\n";
34
35 std::set_new_handler(FailedNewHandler);
36 SET_FLAGS(usage.c_str(), &argc, &argv, true);
37 if (argc != 3) {
38 ShowUsage();
39 return 1;
40 }
41
42 string in1_name = strcmp(argv[1], "-") == 0 ? "" : argv[1];
43 string in2_name = strcmp(argv[2], "-") == 0 ? "" : argv[2];
44
45 if (in1_name.empty() && in2_name.empty()) {
46 LOG(ERROR) << argv[0] << ": Can't take both inputs from standard input.";
47 return 1;
48 }
49
50 FstClass *ifst1 = FstClass::Read(in1_name);
51 if (!ifst1) return 1;
52
53 FstClass *ifst2 = FstClass::Read(in2_name);
54 if (!ifst2) return 1;
55
56 bool result = s::Equal(*ifst1, *ifst2, FLAGS_delta);
57 if (!result)
58 VLOG(1) << "FSTs are not equal.";
59
60 return result ? 0 : 2;
61 }
62