From: Rob Biedenharn <Rob@...>
Date: 2008-12-06T04:23:18+09:00
Subject: Re: [QUIZ] AnsiString (#185)

Since the Facets ANSICode was mentioned, I just thought that I'd also  
make everyone aware of the term-ansicolor gem by Florian Frank flori@ping.de 
  which does this type of thing for colors.

http://term-ansicolor.rubyforge.org/
gem install term-ansicolor

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com


On Dec 5, 2008, at 1:03 PM, Matthew Moss wrote:

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> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
>
> ## AnsiString (#185)
>
>
> _Quiz description provided by Transfire_
>
> Make a subclass of String (or delegate) that tracks "embedded" ANSI  
> codes along with the text. The class should add methods for wrapping  
> the text in ANSI codes. Implement as much of the core String API as  
> possible. So for example:
>
>   s1 = AnsiString.new("Hi")
>   s2 = AnsiString.new("there!)
>
>   s1.red    # wrap text in red/escape ANSI codes
>   s1.blue   # wrap text in blue/escape ANSI codes
>
>   s3 = s1 + ' ' + s2  #=> New AnsiString
>   s3.to_str           #=> "\e[31mHi\e[0m \e[34mthere!\e[0m"
>
> I have an [ANSICode][1] module (it's in [Facets][2]) that you are  
> welcome to provide for the ANSI backend, if desired. It is easy  
> enough to use; the literal equivalent of the above would be:
>
>   ANSICode.red('Hi') + ' ' + ANSICode.blue('there!')
>
> Bonus points for being able to use ANSIStrings in a gsub block:
>
>   ansi_string.gsub(pattern){ |s| s.red }
>
>
> [1]: http://facets.rubyforge.org/doc/api/more/classes/ANSICode.html
> [2]: http://facets.rubyforge.org/