1 // fstencode.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 // Encode transducer labels and/or weights.
21 //
22
23 #include <fst/script/encode.h>
24 #include <fst/script/decode.h>
25
26 /// EncodeMain specific flag definitions
27 DEFINE_bool(encode_labels, false, "Encode output labels");
28 DEFINE_bool(encode_weights, false, "Encode weights");
29 DEFINE_bool(encode_reuse, false, "Re-use existing codex");
30 DEFINE_bool(decode, false, "Decode labels and/or weights");
31
main(int argc,char ** argv)32 int main(int argc, char **argv) {
33 namespace s = fst::script;
34 using fst::script::FstClass;
35 using fst::script::MutableFstClass;
36
37 string usage = "Encodes transducer labels and/or weights.\n\n Usage: ";
38 usage += argv[0];
39 usage += " in.fst codex [out.fst]\n";
40
41 std::set_new_handler(FailedNewHandler);
42 SetFlags(usage.c_str(), &argc, &argv, true);
43 if (argc < 3 || argc > 4) {
44 ShowUsage();
45 return 1;
46 }
47
48 string in_name = (strcmp(argv[1], "-") != 0) ? argv[1] : "";
49 string codex_name = argv[2];
50 string out_name = argc > 3 ? argv[3] : "";
51
52 MutableFstClass *fst = MutableFstClass::Read(in_name, true);
53 if (!fst) return 1;
54
55 if (FLAGS_decode == false) {
56 uint32 flags = 0;
57 flags |= FLAGS_encode_labels ? fst::kEncodeLabels : 0;
58 flags |= FLAGS_encode_weights ? fst::kEncodeWeights : 0;
59 s::Encode(fst, flags, FLAGS_encode_reuse, codex_name);
60 fst->Write(out_name);
61 } else {
62 s::Decode(fst, codex_name);
63 fst->Write(out_name);
64 }
65
66 delete fst;
67 return 0;
68 }
69