From: Wakou Aoyama <wakou@...>
Date: 2001-09-07T07:21:51+09:00
Subject: [ruby-talk:20963] Re: BUG(!) in unescapeHTML

On Thu, Aug 16, 2001 at 03:33:23PM +0900,
Joseph Benik <jobeicus@hotmail.com> wrote:

> require 'cgi'
> txt=CGI::unescapeHTML('&nbsp;')
> 
> results for me:
> /cygdrive/c/RUBY/lib/ruby/1.6/cgi.rb:302:in `unescapeHTML': undefined
> method `[]' for nil (NameError)
> 	from /cygdrive/c/RUBY/lib/ruby/1.6/cgi.rb:274:in `gsub'
> 	from /cygdrive/c/RUBY/lib/ruby/1.6/cgi.rb:274:in `unescapeHTML'
> 	from test.rb:3

$ cat test.rb
require 'cgi'
puts CGI::REVISION
txt=CGI::unescapeHTML('&nbsp;')
p txt

$ ruby-1.6.4 -vw test.rb
ruby 1.6.4 (2001-06-04) [i586-linux]
$Id: cgi.rb,v 1.23.2.5 2001/04/17 19:41:49 wakou Exp $
"&nbsp;"

no NameError. What is version of ruby and cgi.rb which you use?

> logical fix is to add
>       when /\Anbsp\z/ni          then ' '
> 
> to the case statement on line 277, but this same error will crop up
> for any other ampersand case the statement is unprepared for...  which
> seems like a flawed way of doing things.  perhaps the logic around
> line 302 could be re-worked.

not bug. 

http://www.w3.org/TR/REC-html40/sgml/entities.html
> <!ENTITY nbsp   CDATA "&#160;" -- no-break space = non-breaking space,
>                                   U+00A0 ISOnum -->

"&#160;" is not printable, and is not ' '. therefore; cgi.rb is doesn't
converet.


-- 
Wakou Aoyama  <wakou@fsinet.or.jp>