From: "Bart Schaefer" <schaefer@brasslantern.com>
To: zsh-users@math.gatech.edu
Subject: A useful alias for zsh scripting
Date: Fri, 12 Jun 1998 09:52:08 -0700 [thread overview]
Message-ID: <980612095209.ZM22186@candle.brasslantern.com> (raw)
Suppose you have a function that takes several positional parameters. It's
often difficult to keep track of what each of them means. If you use $1 $2
etc. throughout your function, it becomes a chore to add parameters or to
change the order, so you probably end up doing something like:
thingtodo=$1
nameofthing=$2
whattosay=$3
and then using those names elsewhere in the function.
Here's a handy alias to make it much easier to assign names to positional
parameters. You use it like this:
nameparams thingtodo nameofthing whattosay
and the effect is the same as the three assignments above. The one thing
this can't handle is positional parameters containing \0 (nul) bytes.
alias nameparams 'print -rnN $* | IFS=$(print -N) read'
If somebody knows a better way than $(print -N) to get a nul into IFS, I'm
all ears.
--
Bart Schaefer Brass Lantern Enterprises
http://www.well.com/user/barts http://www.brasslantern.com
reply other threads:[~1998-06-12 16:56 UTC|newest]
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