1 files changed, 59 insertions, 0 deletions
diff --git a/src/extensions/pdt/pdtinfo.cc b/src/extensions/pdt/pdtinfo.cc
new file mode 100644
index 0000000..89227d3
--- /dev/null
+++ b/src/extensions/pdt/pdtinfo.cc
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+// pdtinfo.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)
+//
+// \file
+// Prints out various information about a PDT such as number of
+// states, arcs and parentheses.
+//
+
+#include <fst/extensions/pdt/pdtscript.h>
+#include <fst/util.h>
+
+DEFINE_string(pdt_parentheses, "", "PDT parenthesis label pairs.");
+
+int main(int argc, char **argv) {
+  namespace s = fst::script;
+
+  string usage = "Prints out information about a PDT.\n\n  Usage: ";
+  usage += argv[0];
+  usage += " in.pdt\n";
+
+
+  std::set_new_handler(FailedNewHandler);
+  SetFlags(usage.c_str(), &argc, &argv, true);
+  if (argc > 2) {
+    ShowUsage();
+    return 1;
+  }
+
+  string in_name = (argc > 1 && (strcmp(argv[1], "-") != 0)) ? argv[1] : "";
+
+  s::FstClass *ifst = s::FstClass::Read(in_name);
+  if (!ifst) return 1;
+
+  if (FLAGS_pdt_parentheses.empty()) {
+    LOG(ERROR) << argv[0] << ": No PDT parenthesis label pairs provided";
+    return 1;
+  }
+
+  vector<pair<int64, int64> > parens;
+  fst::ReadLabelPairs(FLAGS_pdt_parentheses, &parens, false);
+
+  s::PrintPdtInfo(*ifst, parens);
+
+  return 0;
+}