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From: Vincent Lefevre <vincent@vinc17.net>
To: zsh-workers@zsh.org
Subject: Re: printf %<n>s in UTF-8 is not always POSIX-compliant
Date: Wed, 15 Feb 2012 15:56:19 +0100	[thread overview]
Message-ID: <20120215145619.GF19525@xvii.vinc17.org> (raw)
In-Reply-To: <32370.1329316935@thecus.kiddle.eu>

On 2012-02-15 15:42:15 +0100, Oliver Kiddle wrote:
> Bart wrote:
> > Am I understanding correctly that the intent here is that ?? is a two-
> > byte character so %2s should print the two literal bytes, rather than
> > print the single logical character in a field two logical characters
> > wide?
> 
> That's correct. The POSIX definition uses bytes. For multibyte
> behaviour, there is an L modifier. I don't really see the sense in it
> myself: I don't want to write low-level stuff in the shell.

I think that's for consistency with C. Also, the shell could then
be used as a front-end to test string-related things.

> Frank Terbeck wrote:
> > Frankly, that would be the vendor's fault then. There are many *MANY*
> > ksh implementations, that make for a reasonable link target (ksh93,
> > pdksh or mksh - to name just a few). Zsh is not one of them.
> 
> The fact that zsh is far from a perfect emulation doesn't stop it from
> being useful. I don't necessarily want to install a separate ksh package
> and zsh will run ksh scripts at least as well as pdksh.

But then the emulation should be correct.

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <http://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)


      reply	other threads:[~2012-02-15 14:56 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-15  2:15 Vincent Lefevre
2012-02-15  8:14 ` Bart Schaefer
2012-02-15  9:10   ` Vincent Lefevre
2012-02-15 11:05   ` Peter Stephenson
2012-02-15 11:53     ` Vincent Lefevre
2012-02-15 12:09       ` Frank Terbeck
2012-02-15 12:23         ` Peter Stephenson
2012-02-15 12:42         ` Vincent Lefevre
2012-02-15 14:42   ` Oliver Kiddle
2012-02-15 14:56     ` Vincent Lefevre [this message]

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