From: Peter Stephenson <pws@pwstephenson.fsnet.co.uk>
To: zsh-workers@sunsite.auc.dk (Zsh hackers list)
Subject: Re: Baffling bug with ${(S)...} or ${...//p/r} and math context
Date: Wed, 11 Apr 2001 01:04:13 +0100 [thread overview]
Message-ID: <20010411000413.E2B8F139CD@pwstephenson.fsnet.co.uk> (raw)
In-Reply-To: ""Bart Schaefer""'s message of "Mon, 02 Apr 2001 04:41:19 -0000." <1010402044119.ZM14251@candle.brasslantern.com>
"Bart Schaefer" wrote:
> Now here's the strange bit: If I use that in a math expression (( ... )),
> it gives the correct number, and the inequality evaluates correctly:
>
> ((${#${(f)${(%%)${(S)PS1//[%]\{*%\}/}}}[1]} > COLUMNS-2))
>
> However, if I immediately evaluate the same expression again, the answer
> is different! E.g., if I do
>
> print ${#${(f)${(%%)${(S)PS1//[%]\{*%\}/}}}[1]}
> ((${#${(f)${(%%)${(S)PS1//[%]\{*%\}/}}}[1]} > COLUMNS-2))
> print ${#${(f)${(%%)${(S)PS1//[%]\{*%\}/}}}[1]}
>
> I'm likely to get
>
> 77
> 86
>
> as the output.
Hmm, it wouldn't be something to do with the fact that the length of the
output, even excluding %{...%}'s, varies with the status of the previous
command, by any chance?
--
Peter Stephenson <pws@pwstephenson.fsnet.co.uk>
Work: pws@csr.com
Web: http://www.pwstephenson.fsnet.co.uk
next prev parent reply other threads:[~2001-04-11 0:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-02 4:41 Bart Schaefer
2001-04-11 0:04 ` Peter Stephenson [this message]
2001-04-11 1:17 ` Bart Schaefer
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