1 files changed, 121 insertions, 0 deletions
diff --git a/src/include/fst/map.h b/src/include/fst/map.h
new file mode 100644
index 0000000..419cac4
--- /dev/null
+++ b/src/include/fst/map.h
@@ -0,0 +1,121 @@
+// map.h
+
+// 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
+// Compatability file for old-style Map() functions and MapFst class
+// that have been renamed to ArcMap (cf. StateMap).
+
+#ifndef FST_LIB_MAP_H__
+#define FST_LIB_MAP_H__
+
+
+#include <fst/arc-map.h>
+
+
+namespace fst {
+
+template<class A, class C>
+void Map(MutableFst<A> *fst, C* mapper) {
+  ArcMap(fst, mapper);
+}
+
+template<class A, class C>
+void Map(MutableFst<A> *fst, C mapper) {
+  ArcMap(fst, mapper);
+}
+
+template<class A, class B, class C>
+void Map(const Fst<A> &ifst, MutableFst<B> *ofst, C* mapper) {
+  ArcMap(ifst, ofst, mapper);
+}
+
+template<class A, class B, class C>
+void Map(const Fst<A> &ifst, MutableFst<B> *ofst, C mapper) {
+  ArcMap(ifst, ofst, mapper);
+}
+
+typedef ArcMapFstOptions MapFstOptions;
+
+template <class A, class B, class C>
+class MapFst : public ArcMapFst<A, B, C> {
+ public:
+  typedef B Arc;
+  typedef typename B::Weight Weight;
+  typedef typename B::StateId StateId;
+  typedef CacheState<B> State;
+
+  MapFst(const Fst<A> &fst, const C &mapper, const MapFstOptions& opts)
+      : ArcMapFst<A, B, C>(fst, mapper, opts) {}
+
+  MapFst(const Fst<A> &fst, C* mapper, const MapFstOptions& opts)
+      : ArcMapFst<A, B, C>(fst, mapper, opts) {}
+
+  MapFst(const Fst<A> &fst, const C &mapper)
+      : ArcMapFst<A, B, C>(fst, mapper) {}
+
+  MapFst(const Fst<A> &fst, C* mapper) : ArcMapFst<A, B, C>(fst, mapper) {}
+
+  // See Fst<>::Copy() for doc.
+  MapFst(const ArcMapFst<A, B, C> &fst, bool safe = false)
+      : ArcMapFst<A, B, C>(fst, safe) {}
+
+  // Get a copy of this MapFst. See Fst<>::Copy() for further doc.
+virtual MapFst<A, B, C> *Copy(bool safe = false) const {
+    return new MapFst(*this, safe);
+  }
+};
+
+
+// Specialization for MapFst.
+template <class A, class B, class C>
+class StateIterator< MapFst<A, B, C> >
+    : public StateIterator< ArcMapFst<A, B, C> > {
+ public:
+  explicit StateIterator(const ArcMapFst<A, B, C> &fst)
+      : StateIterator< ArcMapFst<A, B, C> >(fst) {}
+};
+
+
+// Specialization for MapFst.
+template <class A, class B, class C>
+class ArcIterator< MapFst<A, B, C> >
+    : public ArcIterator< ArcMapFst<A, B, C> > {
+ public:
+  ArcIterator(const ArcMapFst<A, B, C> &fst, typename A::StateId s)
+      : ArcIterator< ArcMapFst<A, B, C> >(fst, s) {}
+};
+
+
+template <class A>
+struct IdentityMapper {
+  typedef A FromArc;
+  typedef A ToArc;
+
+  A operator()(const A &arc) const { return arc; }
+
+  MapFinalAction FinalAction() const { return MAP_NO_SUPERFINAL; }
+
+  MapSymbolsAction InputSymbolsAction() const { return MAP_COPY_SYMBOLS; }
+
+  MapSymbolsAction OutputSymbolsAction() const { return MAP_COPY_SYMBOLS;}
+
+  uint64 Properties(uint64 props) const { return props; }
+};
+
+}  // namespace fst
+
+#endif  // FST_LIB_MAP_H__