From: Armin Roehrl <armin@...>
Date: 2002-06-08T17:12:05+09:00
Subject: Re: Help: Improper use of gsub?

Hi,

>     content2.gsub(/<release_num>/, fs)
try calling gsub! instead of gsub as otherwise
content2 does not get changed.

irb(main):002:0> s.gsub(/<release_num>/, "foo")
"foo"
irb(main):003:0> s
"<release_num>"
irb(main):004:0> s.gsub!(/<release_num>/, "foo")
"foo"
irb(main):005:0> s
"foo"

Hope this helps,
	Armin

Am Samstag, 8. Juni 2002 08:06 schrieben Sie:
> All-
>
> The code below correctly creates one copy of file "template.txt" for each
> line in the file "packages.txt", and names each copy with the text in
> field[0] in each line.
>
> For each copy, I am trying to replace the string "<release_num>" with the
> file object fs (a very short file). However, the "<release_num>" string is
> not bing replaced. Am I making incorrect use of the gsub method (in 2nd
> line from bottom)? If so, please suggest a correction.
>
>   content = File.new("template1.txt").read
>   fs = File.new("fiddle.sticks").read
>   IO.foreach("packages.txt") { |x|
>     field = x.chop.split(':')
>     content2 = content
>     content2.gsub(/<release_num>/, fs)
>     File.new(field[0],"w+").write(content2)
>   }
>
> Thanks.
>
> -Kurt Euler

-- 
Armin.

-----------------------------------------------
Armin Roehrl, http://www.approximity.com
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