rb-readline.rb in rb-readline-0.5.0

- old
+ new

@@ -1,4 +1,20 @@
+# encoding: US-ASCII
+
+# Remove any Readline module that has been defined so far. This is primarily to
+# catch cases where GBU Readline has already been required. Unfortunately, it
+# is not without problems - any calls to methods like Readline.completion_proc
+# will need to be re-made.
+if defined? Readline
+  if $DEBUG
+    STDERR.puts "Removing old Readline module - redefined by rb-readline."
+  end
+  Object.send(:remove_const, :Readline)
+end
+
+# This forces require of bundled readline instead of any already existing
+# in your Ruby installation.
+
 # Stub file to conform gem name (rb-readline)
 # It forces require of bundled readline instead of any already existing
 # in your Ruby installation. It will avoid any possible warning caused
 # by double require.
 unless defined?(RbReadline)