helpers.rb in visionmedia-rext-0.0.3

- old
+ new

@@ -2,10 +2,34 @@
 require 'extlib'
 
 class String
   
   ##
+  # Return Base 64 decoded string.
+  #
+  # === Examples
+  #
+  #  'Y29va2llcw=='.base64_decode  # => cookies
+  #
+    
+  def base64_decode
+    unpack('m').first
+  end
+  
+  ##
+  # Return Base 64 encoded string.
+  #
+  # === Examples
+  #
+  #  'cookies'.base64_encode  # => Y29va2llcw==
+  #
+  
+  def base64_encode
+    [self].pack('m').chop
+  end
+  
+  ##
   # Returns a File instance.
   #
   # === Examples
   #
   #   'History.rdoc'.file.mtime
@@ -65,9 +89,26 @@
   #  '$100,000'.digitize  # => 100000
   #
   
   def digitize
     gsub /[^\d]/, ''
+  end
+  
+  ##
+  # Returns a constant when the string is a valid constant name.
+  
+  def constantize
+    Extlib::Inflection.constantize self
+  end
+  
+  ##
+  # Convert a string to camel-case, and optionally +capitalize_first_letter+.
+  
+  def camelize capitalize_first_letter = false
+    string = Extlib::Inflection.camelize(self)
+    return string if capitalize_first_letter
+    string[0,1] = string.first.downcase
+    string
   end
   
   ##
   # Wrap a string with a +prefix+ and optional
   # +suffix+. When the +suffix+ is not present