From: Holden Glova <dsafari@...>
Date: 2002-03-30T06:15:53+09:00
Subject: Re: String operation

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On Sat, 30 Mar 2002 05:52, Dat Nguyen wrote:
> Hello all,�Is there an�efficient way to replace multiple characters in a
> string given the positions and the lengths of strings to be replaced. For
> instance�to modify the�string 'Hello World"�to "Hallo Welt" in one
> operation, that is to change only the partial strings 'e' with 'a', and
> 'or'�with 'e', and 'd' with 't'. Or to modify the string 'New York' to
> 'NY',� 'December' to 'Dec'.�Thanks,Dat
>
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Hi Dat,

Each one of the needs you describe above requires a different solution 
because they are all different problems. The last two examples are the 
easiest to solve so I'll start you off with those :)

irb(main):002:0> "December"[0,3]
"Dec"


irb(main):008:0> "New York".split.collect { |word| word[0].chr }.join
"NY"

- -- 
Signed,
Holden Glova
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