From: Zev Blut <rubyzbibd@...>
Date: 2005-05-19T21:30:34+09:00
Subject: Re: [ ruby-Bugs-1930 ] CGI::escapeHTML escapes the ampersand in an existing escape command

I might have spoken too soon.
The patch does break some round trip cases.
----------------------------------------------------------------------

p = "&#195;"
# A character escaped "���"

CGI.unescapeHTML( patch_escape(p) )
#=> "\303"

CGI.unescapeHTML( CGI.escapeHTML( p ) )
#=> "&#195;"

# The above two examples show that they differ on the round trip.

x = CGI.unescapeHTML( patch_escape(p) )
#=> "\303"

CGI.unescapeHTML( CGI.escapeHTML( x ) )
#=> "\303"

CGI.unescapeHTML( patch_escape( x ) )
#=> "\303"

# With the actual character "���" the round trip is the same.
----------------------------------------------------------------------
Oh well.
Zev