xibbar	2013-06-20 06:11:52 +0900 (Thu, 20 Jun 2013)

  New Revision: 41455

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=41455

  Log:
    * lib/cgi/util.rb (CGI.escapeHTML): performance improvement.
      thank you nagachika-san.

  Modified files:
    trunk/lib/cgi/util.rb

Index: lib/cgi/util.rb
===================================================================
--- lib/cgi/util.rb	(revision 41454)
+++ lib/cgi/util.rb	(revision 41455)
@@ -41,8 +41,8 @@ module CGI::Util https://github.com/ruby/ruby/blob/trunk/lib/cgi/util.rb#L41
   #   CGI::unescapeHTML("Usage: foo "bar" <baz>")
   #      # => "Usage: foo \"bar\" <baz>"
   def unescapeHTML(string)
-    enc = string.encoding
     return string unless string.include? '&'
+    enc = string.encoding
     if enc != Encoding::UTF_8 && [Encoding::UTF_16BE, Encoding::UTF_16LE, Encoding::UTF_32BE, Encoding::UTF_32LE].include?(enc)
       return string.gsub(Regexp.new('&(apos|amp|quot|gt|lt|#[0-9]+|#x[0-9A-Fa-f]+);'.encode(enc))) do
         case $1.encode(Encoding::US_ASCII)

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