- Refactored String#tokenize

lib/commander/core_ext/string.rb

@@ -2,17 +2,15 @@
 class String
 
   ##
-  # Replace _hash_ keys with associated values. Mutative.
+  # Replace +hash+ keys with associated values. Mutative.
 
   def tokenize! hash
-    hash.each_pair do |k, v|
-      self.gsub! Regexp.new(":#{k}"), v.to_s
-    end
+    hash.each_pair { |k, v| gsub! /:#{k}/, v }
     self
   end
 
   ##
-  # Replace _hash_ keys with associated values.
+  # Replace +hash+ keys with associated values.
 
   def tokenize hash
     self.dup.tokenize! hash
@@ -23,11 +21,11 @@ def tokenize hash
 
   def camelcase upcase_first_letter = true
     up = upcase_first_letter
-    str = dup
-    str.gsub!(/\/(.?)/){ "::#{$1.upcase}" }
-    str.gsub!(/(?:_+|-+)([a-z])/){ $1.upcase }
-    str.gsub!(/(\A|\s)([a-z])/){ $1 + $2.upcase } if up
-    str
+    s = dup
+    s.gsub!(/\/(.?)/){ "::#{$1.upcase}" }
+    s.gsub!(/(?:_+|-+)([a-z])/){ $1.upcase }
+    s.gsub!(/(\A|\s)([a-z])/){ $1 + $2.upcase } if up
+    s
   end
 
 end