From: Steven Klass <sklass@pointcircle.com>
To: zsh-users <zsh-users@sunsite.dk>
Subject: Re: path and += troubles
Date: Sat, 26 Nov 2005 07:54:35 -0700 [thread overview]
Message-ID: <E350C29B-12FD-4276-8EA3-D13B4E11AE41@pointcircle.com> (raw)
In-Reply-To: <20051126132557.GH13460@ay.vinc17.org>
Hi,
This exposes one of my personal problems with typeset. If I really
want a path appended typeset -U will drop the appended path, in favor
of the path which already exists. So IMHO the only way to handle
this properly is to
Normalize the new path ($2) - Remove any trailing slashes ensure no
double-slashes
Check to see if the new path exists in the old path array ($1) and
delete it
Append or Prepend the new path to the $1
Here's some of the cleanup stuff I read about in this list..
path=($^path(N))
setopt EXTENDED_GLOB
path=(${${path//\/##/\/}%/})
unsetopt EXTENDED_GLOB
typeset -U path
But can anyone please explain my number 1 item - that is really
annoying me..
appendPath() {
# if the path exists delete it..
deletePath $1 $2
# Append the path to the end..
$1+=($2)
}
1. Why does += not work when adding to the array - It should right?
---
Steven Klass
sklass@pointcircle.com
(480) 988-5657
On Nov 26, 2005, at 6:25 AM, Vincent Lefevre wrote:
> On 2005-11-26 10:32:35 +0100, Christian Taylor wrote:
>> I never bothered about a deletion function, because I simply use:
>> typeset -U path
>> which will keep only the first occurence of any element.
>
> But if a same path is written in two different ways, it doesn't
> recognise it:
>
> ay:~> echo $library_path
> /home/lefevre/./lib /home/lefevre/./lib /home/lefevre/lib /usr/
> local/gmp/lib
> ay:~> typeset -U LIBRARY_PATH
> ay:~> echo $library_path
> /home/lefevre/./lib /home/lefevre/lib /usr/local/gmp/lib
>
> --
> Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/>
> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/
> blog/>
> Work: CR INRIA - computer arithmetic / SPACES project at LORIA
next prev parent reply other threads:[~2005-11-26 14:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-26 4:32 Steven Klass
2005-11-26 9:32 ` Christian Taylor
2005-11-26 13:25 ` Vincent Lefevre
2005-11-26 14:54 ` Steven Klass [this message]
2005-11-27 1:30 ` Vincent Lefevre
2005-11-26 17:00 ` Bart Schaefer
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