add Patricia#include? method

This behaves like Patricia#match_best, but is more
efficient as it does not need to allocate a new object
on successful matches.

1 files changed, 8 insertions, 0 deletions

diff --git a/README b/README
index 23ce6c1..0f9c012 100644
--- a/README
+++ b/README
@@ -124,6 +124,14 @@ search_exact:
 
 match_exact:        An alias of search_exact.
 
+include?:
+
+      pt.include?(key_string);
+
+    This method behaves like match_best, but returns true on success
+    and false on failure.  This method is more efficient than match_best
+    as it does not allocate a new object.
+
 remove:
 
       pt.remove(key_string);