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From: Zoltan Hidvegi <hzoli@frontiernet.net>
To: zsh-workers@math.gatech.edu (Zsh hacking and development)
Subject: Re: Docs fix
Date: Mon, 26 Oct 1998 23:13:47 -0600 (CST)	[thread overview]
Message-ID: <199810270513.XAA19217@hzoli.home> (raw)
In-Reply-To: <981026202123.ZM12435@candle.brasslantern.com> from Bart Schaefer at "Oct 26, 98 08:21:23 pm"

Wow, I did not expect to stir such a debate.

> The context here is the question about converting csh aliases to zsh.

Sure, and you are absolutely right in that \!* corresponds to $*.  And
there are certainly legitime cases where you would realy want to use $*.
But the examples in the FAQ are not such cases:

    cd() { builtin cd $*; echo $PWD; }
    rm() { command rm -i $* }
    l() { /bin/ls -la $* | more }

In all these cases you really want to use "$@".  Especially in case of
cd, I often use the two argument cd with empty second argument.  There is
a good example in the FAQ where $* is the right thing:

    xhead () { print -n "\033]2;$*\a"; }

And one more point, people misuse csh's \!* as often as they do misuse
$*.

> alias   do      "\!* >&! did &"
> alias   dopr    '\!* | lpr -J "\!:1"'
> 
> If you replace $* with "$@" when converting those aliases, you end up
> quoting the word in the command position, which causes unexptected side
> effects.

This really does not have any relevance to this discussion, but what are
those side effects?  Alias expansion and reserved word recognition is not
done on the result of either $* or "$@" expansion.  The exact conversion
of these csh aliases would be rather tricky.

Zoli


  reply	other threads:[~1998-10-27  5:16 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1998-10-26 23:03 Phil Pennock
1998-10-26 23:53 ` Bart Schaefer
1998-10-27  1:25   ` Zoltan Hidvegi
1998-10-27  2:27     ` Bart Schaefer
1998-10-26 22:02       ` TGAPE!
1998-10-27  4:05         ` Phil Pennock
1998-10-27  4:21         ` Bart Schaefer
1998-10-27  5:13           ` Zoltan Hidvegi [this message]
1998-10-28  4:53             ` Bart Schaefer

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