1 files changed, 66 insertions, 0 deletions
diff --git a/src/script/shortest-distance.cc b/src/script/shortest-distance.cc
new file mode 100644
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+++ b/src/script/shortest-distance.cc
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+
+// 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: jpr@google.com (Jake Ratkiewicz)
+
+#include <fst/script/fst-class.h>
+#include <fst/script/script-impl.h>
+#include <fst/script/shortest-distance.h>
+
+namespace fst {
+namespace script {
+
+// 1
+void ShortestDistance(const FstClass &fst, vector<WeightClass> *distance,
+                      const ShortestDistanceOptions &opts) {
+  ShortestDistanceArgs1 args(fst, distance, opts);
+
+  Apply<Operation<ShortestDistanceArgs1> >("ShortestDistance", fst.ArcType(),
+                                           &args);
+}
+
+// 2
+void ShortestDistance(const FstClass &ifst, vector<WeightClass> *distance,
+                      bool reverse, double delta) {
+  ShortestDistanceArgs2 args(ifst, distance, reverse, delta);
+
+  Apply<Operation<ShortestDistanceArgs2> >("ShortestDistance", ifst.ArcType(),
+      &args);
+}
+
+// 3
+WeightClass ShortestDistance(const FstClass &ifst) {
+  ShortestDistanceArgs3 args(ifst);
+
+  Apply<Operation<ShortestDistanceArgs3> >("ShortestDistance", ifst.ArcType(),
+      &args);
+
+  return args.retval;
+}
+
+REGISTER_FST_OPERATION(ShortestDistance, StdArc, ShortestDistanceArgs1);
+REGISTER_FST_OPERATION(ShortestDistance, LogArc, ShortestDistanceArgs1);
+REGISTER_FST_OPERATION(ShortestDistance, Log64Arc, ShortestDistanceArgs1);
+
+REGISTER_FST_OPERATION(ShortestDistance, StdArc, ShortestDistanceArgs2);
+REGISTER_FST_OPERATION(ShortestDistance, LogArc, ShortestDistanceArgs2);
+REGISTER_FST_OPERATION(ShortestDistance, Log64Arc, ShortestDistanceArgs2);
+
+REGISTER_FST_OPERATION(ShortestDistance, StdArc, ShortestDistanceArgs3);
+REGISTER_FST_OPERATION(ShortestDistance, LogArc, ShortestDistanceArgs3);
+REGISTER_FST_OPERATION(ShortestDistance, Log64Arc, ShortestDistanceArgs3);
+
+
+}  // namespace script
+}  // namespace fst