1 files changed, 13 insertions, 1 deletions
diff --git a/gnu/regexp/CharIndexed.java b/gnu/regexp/CharIndexed.java
index a0d7106ae..df1d8930c 100644
--- a/gnu/regexp/CharIndexed.java
+++ b/gnu/regexp/CharIndexed.java
@@ -1,5 +1,5 @@
 /* gnu/regexp/CharIndexed.java
-   Copyright (C) 1998-2001, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1998-2001, 2004, 2006 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -81,4 +81,16 @@ public interface CharIndexed {
      * position at a valid position in the input.
      */
     boolean isValid();
+
+    /**
+     * Returns another CharIndexed containing length characters to the left
+     * of the given index. The given length is an expected maximum and
+     * the returned CharIndexed may not necessarily contain so many characters.
+     */
+    CharIndexed lookBehind(int index, int length);
+
+    /**
+     * Returns the effective length of this CharIndexed
+     */
+    int length();
 }