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* lib/cgi/util.rb(CGI.escapeHTML): performance improvement.

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thank you @bbxiao1 via
  https://github.com/ruby/ruby/pull/333

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41431 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
xibbar 2013-06-19 12:42:05 +00:00
parent e82f5f7ddb
commit e26fe81b0b
1 changed files with 2 additions and 1 deletions
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3
lib/cgi/util.rb
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@ -42,7 +42,8 @@ module CGI::Util
# # => "Usage: foo \"bar\" <baz>"
def unescapeHTML(string)
enc = string.encoding
if [Encoding::UTF_16BE, Encoding::UTF_16LE, Encoding::UTF_32BE, Encoding::UTF_32LE].include?(enc)
return string unless string.include? '&'
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)
when 'apos' then "'".encode(enc)