fstcompress.cc
1.45 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
// See www.openfst.org for extensive documentation on this weighted
// finite-state transducer library.
//
// Compresses/decompresses an FST.
#include <memory>
#include <string>
#include <fst/extensions/compress/compress-script.h>
#include <fst/flags.h>
#include <fst/log.h>
#include <fst/util.h>
#include <fst/script/fst-class.h>
DEFINE_string(arc_type, "standard", "Output arc type");
DEFINE_bool(decode, false, "Decode");
DEFINE_bool(gzip, false,
"Applies gzip compression after LZA compression and "
"gzip decompression before LZA decompression "
"(recommended)"
"");
int main(int argc, char **argv) {
namespace s = fst::script;
using s::FstClass;
using s::VectorFstClass;
string usage = "Compresses/decompresses an FST.\n\n Usage: ";
usage += argv[0];
usage += " [in.fst [out.fstz]]\n";
usage += " --decode [in.fstz [out.fst]]\n";
std::set_new_handler(FailedNewHandler);
SET_FLAGS(usage.c_str(), &argc, &argv, true);
if (argc > 3) {
ShowUsage();
return 1;
}
string in_name = (argc > 1 && (strcmp(argv[1], "-") != 0)) ? argv[1] : "";
string out_name = argc > 2 ? argv[2] : "";
if (FLAGS_decode == false) {
std::unique_ptr<FstClass> ifst(FstClass::Read(in_name));
if (!ifst) return 1;
s::Compress(*ifst, out_name, FLAGS_gzip);
} else {
VectorFstClass ofst(FLAGS_arc_type);
s::Decompress(in_name, &ofst, FLAGS_gzip);
ofst.Write(out_name);
}
return 0;
}