Cleaned up some style and aded docs for allow_unnecessary_interpolation.

Closes gh-148

README.md

@@ -45,6 +45,7 @@ project, whatever style that may be.
         * Camel case method names
     * Common syntax
         * Conditionals wrapped in parentheses
+        * Unnecessary interpolation in strings
     * Valid Ruby (warns by default)
 * Configurable
     * Specify style in

lib/tailor/rulers/allow_unnecessary_interpolation_ruler.rb

@@ -28,12 +28,13 @@ def nl_update(lexed_line, lineno, column)
         each_string(@tokens).each do |string|
           measure(line_number(@tokens.first), string)
         end
+
         reset_tokens
       end
 
-      # Checks if variables are interpolated unnecessarily
+      # Checks if variables are interpolated unnecessarily.
       #
-      # @param [Array] tokens The filtered tokens
+      # @param [Array] tokens The filtered tokens.
       def measure(lineno, tokens)
         return if @config
         if no_content?(tokens) and one_expression?(tokens)
@@ -81,7 +82,6 @@ def reset_tokens
       def string_tokens(lexed_line)
         lexed_line.select { |t| EVENTS.include?(t[1]) }
       end
-
     end
   end
 end

lib/tailor/tailorrc.erb

@@ -98,6 +98,10 @@
 #                         wrapped in parentheses.
 #                         Default:      true
 #
+# allow_unnecessary_interpolation
+#                         Checks for unnecessary interpolation in strings.
+#                         Default:      false
+#
 Tailor.config do |config|
   config.formatters "<%= formatters.join(', ') %>"
   config.file_set '<%= file_list %>' do |style|<% style.each do |rule, value| %>