From: Brian Candler <b.candler@...>
Date: 2010-01-08T22:04:33+09:00
Subject: Re: Stopping String Escaping.

> You could simplify your code if you rewrote to use the block form of 
> gsub anyway.

Try this:

----- 8< -------------------------------------------------
require 'rubygems'
require 'uv'
require 'redcloth'

text = DATA.read
text.gsub!(/#>code\((\S+)\)(.+?)#>code/m) do
  "<notextile>" +
    Uv.parse($2, 'xhtml', $1, false, 'twilight') +
    "</notextile>"
end
puts RedCloth.new(text).to_html

__END__
h1. Some code

#>code(ruby)
puts "Hello world!\n"
puts "Hello\\one backslash"
#>code

h1. The end
----- 8< -------------------------------------------------

Output:

<h1>Some code</h1>
<pre class="twilight">
puts <span class="String"><span class="String">&quot;</span>Hello 
world!<span class="StringConstant">\n</span><span 
class="String">&quot;</span></span>
puts <span class="String"><span class="String">&quot;</span>Hello<span 
class="StringConstant">\\</span>one backslash<span 
class="String">&quot;</span></span>
</pre><h1>The end</h1>
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