1 files changed, 62 insertions, 0 deletions
diff --git a/src/extensions/far/farextract.cc b/src/extensions/far/farextract.cc
new file mode 100644
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+++ b/src/extensions/far/farextract.cc
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+// farextract.cc
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Copyright 2005-2010 Google, Inc.
+// Author: riley@google.com (Michael Riley)
+// Modified: jpr@google.com (Jake Ratkiewicz) to use new arc dispatch
+//
+// \file
+// Extracts component FSTs from an finite-state archive.
+//
+
+#include <fst/extensions/far/main.h>
+#include <fst/extensions/far/farscript.h>
+
+DEFINE_string(filename_prefix, "", "Prefix to append to filenames");
+DEFINE_string(filename_suffix, "", "Suffix to append to filenames");
+DEFINE_int32(generate_filenames, 0,
+             "Generate N digit numeric filenames (def: use keys)");
+DEFINE_string(begin_key, "",
+              "First key to extract (def: first key in archive)");
+DEFINE_string(end_key, "",
+              "Last key to extract (def: last key in archive)");
+
+
+int main(int argc, char **argv) {
+  namespace s = fst::script;
+
+  string usage = "Extracts FSTs from a finite-state archive.\n\n Usage:";
+  usage += argv[0];
+  usage += " in1.far [in2.far...]\n";
+
+  std::set_new_handler(FailedNewHandler);
+  SetFlags(usage.c_str(), &argc, &argv, true);
+
+  if (argc < 2) {
+    ShowUsage();
+    return 1;
+  }
+
+  vector<string> ifilenames;
+  for (int i = 1; i < argc; ++i)
+    ifilenames.push_back(argv[i]);
+
+  const string &arc_type = fst::LoadArcTypeFromFar(ifilenames[0]);
+
+  s::FarExtract(ifilenames, arc_type, FLAGS_generate_filenames,
+                FLAGS_begin_key, FLAGS_end_key, FLAGS_filename_prefix,
+                FLAGS_filename_suffix);
+
+  return 0;
+}