Add Succ functor for strings.

ishikawa · Dec 14, 2011 · f9293fb · f9293fb
1 parent fd3ea7e
commit f9293fb
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/rparsec/functors.rb b/rparsec/functors.rb
@@ -8,6 +8,7 @@ module Functors
   Idn = proc {|*x|x}
   Neg = proc {|x|-x}
   Inc = proc {|x|x+1}
+  Succ = proc {|x|x.succ}
   Dec = proc {|x|x-1}
   Plus = proc {|x,y|x+y}
   Minus = proc {|x,y|x-y}
@@ -271,4 +272,4 @@ def power(n)
   alias * repeat
 end
 
-end # module
+end # module