Redcloth upwards - Dec 2007 - Bug: NoMethodError: private method `gsub'' called for nil:NilClass

Hi there.

I''m using RedCloth as part of a social network''s blog system.

I came across the following bug when an img tag with the src attribute  
is inputted, and filter_html is set to true.

I have pasted the code sample below.

 >> require ''RubyGems''
=> true
 >> require ''RedCloth''
=> true
 >> RedCloth.new(''<img
src="">'',[:filter_html]).to_html
NoMethodError: private method `gsub'' called for nil:NilClass
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ 
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1118:in `clean_html''
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ 
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1113:in `each''
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ 
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1113:in `clean_html''
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ 
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1112:in `each''
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ 
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1112:in `clean_html''
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ 
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1107:in `gsub!''
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ 
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1107:in `clean_html''
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ 
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:310:in `to_html''
	from (irb):3
 >>

Thanks.

Douglas F Shearer
dougal.s at gmail.com
http://douglasfshearer.com

hi its seems like you have done a hard work on it. I have got lots of

information from your post. Really appreciate your work.!! It was

describe very nicely keep us doing good work..
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-- 
Posted via http://www.ruby-forum.com/.

I copied it into a Lighthouse ticket.  Thanks for reporting the bug

http://jgarber.lighthouseapp.com/projects/13054-redcloth/tickets/200-nil-gsub-when-img-with-src-and-filter_html-is-on

On Tue, Dec 4, 2007 at 9:05 AM, Douglas F Shearer <dougal.s at
gmail.com>wrote:
> Hi there.
>
> I''m using RedCloth as part of a social network''s blog
system.
>
> I came across the following bug when an img tag with the src attribute
> is inputted, and filter_html is set to true.
>
> I have pasted the code sample below.
>
>  >> require ''RubyGems''
> => true
>  >> require ''RedCloth''
> => true
>  >> RedCloth.new(''<img
src="">'',[:filter_html]).to_html
> NoMethodError: private method `gsub'' called for nil:NilClass
>        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
> ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1118:in
`clean_html''
>        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
> ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1113:in `each''
>        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
> ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1113:in
`clean_html''
>        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
> ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1112:in `each''
>        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
> ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1112:in
`clean_html''
>        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
> ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1107:in `gsub!''
>        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
> ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1107:in
`clean_html''
>        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
> ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:310:in `to_html''
>        from (irb):3
>  >>
>
> Thanks.
>
> Douglas F Shearer
> dougal.s at gmail.com
> http://douglasfshearer.com
>
> _______________________________________________
> Redcloth-upwards mailing list
> Redcloth-upwards at rubyforge.org
> http://rubyforge.org/mailman/listinfo/redcloth-upwards
>
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