// See www.openfst.org for extensive documentation on this weighted
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// finite-state transducer library.
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//
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// Extracts component FSTs from an finite-state archive.
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#include <string>
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#include <vector>
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#include <fst/flags.h>
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#include <fst/extensions/far/farscript.h>
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#include <fst/extensions/far/getters.h>
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DEFINE_string(filename_prefix, "", "Prefix to append to filenames");
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DEFINE_string(filename_suffix, "", "Suffix to append to filenames");
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DEFINE_int32(generate_filenames, 0,
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"Generate N digit numeric filenames (def: use keys)");
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DEFINE_string(keys, "",
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"Extract set of keys separated by comma (default) "
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"including ranges delimited by dash (default)");
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DEFINE_string(key_separator, ",", "Separator for individual keys");
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DEFINE_string(range_delimiter, "-", "Delimiter for ranges of keys");
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int main(int argc, char **argv) {
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namespace s = fst::script;
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string usage = "Extracts FSTs from a finite-state archive.\n\n Usage:";
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usage += argv[0];
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usage += " [in1.far in2.far...]\n";
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std::set_new_handler(FailedNewHandler);
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SET_FLAGS(usage.c_str(), &argc, &argv, true);
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s::ExpandArgs(argc, argv, &argc, &argv);
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std::vector<string> in_fnames;
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for (int i = 1; i < argc; ++i) in_fnames.push_back(argv[i]);
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if (in_fnames.empty()) in_fnames.push_back("");
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const auto arc_type = s::LoadArcTypeFromFar(in_fnames[0]);
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if (arc_type.empty()) return 1;
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s::FarExtract(in_fnames, arc_type, FLAGS_generate_filenames, FLAGS_keys,
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FLAGS_key_separator, FLAGS_range_delimiter,
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FLAGS_filename_prefix, FLAGS_filename_suffix);
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return 0;
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}
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