From: Han Pingtian <hanpt@linux.vnet.ibm.com>
To: zsh-users@zsh.org
Subject: Re: priority problem of ":|" and ":*"
Date: Wed, 26 Dec 2012 07:11:33 +0800 [thread overview]
Message-ID: <20121225231133.GA8145@localhost.localdomain> (raw)
In-Reply-To: <20121224105241.GA24051@localhost.localdomain>
On Mon, Dec 24, 2012 at 06:52:41PM +0800, Han Pingtian wrote:
> hi,
>
> I believe the new ":|" and ":*" should be in Rule 7 Modifiers of
> paramter expansion, so this looks like a problem in priority:
>
> % a1=(a b c);a2=('a b c');print "${a1:|a2}"
>
> % a1=(a b c);a2=('a b c');print "${#a1:|a2}"
> 3
>
> in this, the priority should be "5 Double-quoted joining" first, then "7
> modifiers", then "9 length". So 'print "${#a1:|a2}"' should output 0 I
> think. And the ":*" has the same problem.
>
For the ":*", we have this result:
% a1=(a b c);a2=(a b c);print ${a1:*a2}
a b c
% a1=(a b c);a2=(a b c);print "${a1:*a2}"
% a1=(a b c);a2=(a b c);print "${#a1:*a2}"
3
%
next prev parent reply other threads:[~2012-12-26 2:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-24 10:52 Han Pingtian
2012-12-25 23:11 ` Han Pingtian [this message]
2012-12-26 9:10 ` Bart Schaefer
2012-12-26 10:09 ` Han Pingtian
2012-12-27 6:24 ` Bart Schaefer
2012-12-27 9:06 ` Han Pingtian
2012-12-26 16:44 ` Ray Andrews
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