From: Joel VanderWerf <vjoel@...>
Date: 2008-01-24T12:22:36+09:00
Subject: Re: Stuff method

Carl Graff wrote:
> Hi,
> 
> I missed the stuff function or method found in some languages so I added
> this method to my Helpers mixin.
> 
> 
> def stuff(str, substr, rplstr, prefix = '.*')
>   r1 = Regexp.new("(#{prefix})(#{substr})(.*)")
>   str.gsub(r1,'\1'+rplstr+'\3')
> end
> 
> puts stuff('012-014640-001','-.','-X')
> 
> This works but if you know a better way please share so I can learn.
> 
> In particular it would be nicer I think if it worked like this:
> 
> new_str = '012-014640-001'.stuff('-.','-X')

How about:

s = '012-014640-001'
puts s.gsub(/(.*)-.(.*)/, "\\1-X\\2")
puts s.gsub(/(.*)-.(.*)/) { "#{$1}-X#{$2}" }

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407