From: Bertram Scharpf <lists@...>
Date: 2009-10-31T04:20:39+09:00
Subject: Re: How do you get the tail end of a string?

Hi,

Am Samstag, 31. Okt 2009, 04:00:09 +0900 schrieb Michael W. Ryder:
> Bertram Scharpf wrote:
>> For my private use I wrote a suite of methods
>>   String#head
>>   String#tail
>
> Just out of curiosity, do your methods work in a case like:
>   a="123456"
>   index = 12
>   puts a(-index, index)

Sure they do.

  main:003> a = "123456"
  => "123456"
  main:004> a.head 5
  => "12345"
  main:005> a.tail 5
  => "23456"
  main:006> a.head 12
  => "123456"
  main:007> a.tail 8
  => "123456"

I remember that I detected this effect just when I wrote them and
that I decided against the a[-i,i] behaviour.

Bertram


-- 
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de