tweaked unmasking (no need to create and compile regexps all the time when sub(string, string) is enough

app/models/chunks/nowiki.rb

@@ -27,5 +27,5 @@ class NoWiki < Chunk::Abstract
   # The nowiki content is not unmasked. This means the chunk will be reverted
   # using the plain text.
   def unmask(content) nil end
-  def revert(content) content.sub!( Regexp.new(mask(content)), plain_text ) end
+  def revert(content) content.sub!(mask(content), plain_text) end
 end

app/models/chunks/uri.rb

@@ -116,7 +116,7 @@ class URIChunk < Chunk::Abstract
   # content.
   def unmask(content)
     return nil if escaped_text
-    return self if content.sub!( Regexp.new(mask(content)), "<a href=\"#{uri}\">#{link_text}</a>" )
+    return self if content.sub!(mask(content), "<a href=\"#{uri}\">#{link_text}</a>")
   end
 
   # If there is no hostname in the URI, do not render it

app/models/chunks/wiki.rb

@@ -64,7 +64,9 @@ module WikiChunk
   class Link < WikiLink
     def self.pattern() /\[\[([^\]]+)\]\]/ end
     
-    ALIASED_LINK_PATTERN = Regexp.new('^(.*)?\|(.*)$', 0, "utf-8") unless defined? ALIASED_LINK_PATTERN
+    unless defined? ALIASED_LINK_PATTERN
+      ALIASED_LINK_PATTERN = Regexp.new('^(.*)?\|(.*)$', 0, 'utf-8')
+    end
 
     attr_reader :page_name, :link_text