Re: Offlist Re: mcedit bug
- From: murban <murban cs uni-magdeburg de>
- To: mc <mc-devel gnome org>
- Subject: Re: Offlist Re: mcedit bug
- Date: Thu, 13 Dec 2001 22:52:22 +0100
Hi Bjoern,
> I don't know much about sed but
>
> sed 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'
>
> works for english text. I'm not sure why not y/[a-z]/[A-Z]/ works.
It doesn't work because `y/source/dest/' doesn't take patterns. `source'
and `dest' neither are patterns nor regular expressions, it simply are
pools of characters. The search pattern is ".*" by default. The
characters that appear both in the matched input and in `source' are
transliterated to the corresponding characters in `dest'.
`y/[a-z]/[A-Z]/' would change all a`s into A's and all z`s into Z`s, but
nothing else. It's a strange command; I really can't imagine much
rational use cases for it.
Matthias
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