Add a EditDistance() function based on the one in llvm/lib/Support/StringRef.cpp.

1 files changed, 25 insertions, 0 deletions

diff --git a/src/edit_distance.h b/src/edit_distance.h
new file mode 100644
index 0000000..186a0d7
--- /dev/null
+++ b/src/edit_distance.h
@@ -0,0 +1,25 @@
+// Copyright 2011 Google Inc. All Rights Reserved.
+//
+// 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.
+
+#ifndef NINJA_EDIT_DISTANCE_H_
+#define NINJA_EDIT_DISTANCE_H_
+
+struct StringPiece;
+
+int EditDistance(const StringPiece& s1,
+                 const StringPiece& s2,
+                 bool allow_replacements = true,
+                 int max_edit_distance = 0);
+
+#endif  // NINJA_EDIT_DISTANCE_H_