1 files changed, 67 insertions, 0 deletions
diff --git a/src/bin/fstminimize.cc b/src/bin/fstminimize.cc
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+// fstminimize.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 FstClass
+//
+// \file
+// Minimizes a deterministic FSA.
+//
+
+#include <fst/script/minimize.h>
+
+DEFINE_double(delta, fst::kDelta, "Comparison/quantization delta");
+
+
+int main(int argc, char **argv) {
+  namespace s = fst::script;
+  using fst::script::FstClass;
+  using fst::script::MutableFstClass;
+  using fst::script::VectorFstClass;
+
+  string usage = "Minimizes a deterministic FST.\n\n  Usage: ";
+  usage += argv[0];
+  usage += " [in.fst [out1.fst [out2.fst]]]\n";
+
+  std::set_new_handler(FailedNewHandler);
+  SetFlags(usage.c_str(), &argc, &argv, true);
+  if (argc > 4) {
+    ShowUsage();
+    return 1;
+  }
+
+  string in_name = (argc > 1 && strcmp(argv[1], "-") != 0) ? argv[1] : "";
+  string out1_name = (argc > 2 && strcmp(argv[2], "-") != 0) ? argv[2] : "";
+  string out2_name = (argc > 3 && strcmp(argv[3], "-") != 0) ? argv[3] : "";
+
+  if (out1_name.empty() && out2_name.empty() && argc > 3) {
+    LOG(ERROR) << "Both outputs can't be standard out.";
+    return 1;
+  }
+
+  MutableFstClass *fst1 = MutableFstClass::Read(in_name, true);
+  if (!fst1) return 1;
+
+  MutableFstClass *fst2 = argc > 3 ?
+      new VectorFstClass(fst1->ArcType()) : 0;
+
+  s::Minimize(fst1, fst2, FLAGS_delta);
+
+  fst1->Write(out1_name);
+  if (fst2)
+    fst2->Write(out2_name);
+
+  return 0;
+}