zsh-users
 help / color / mirror / code / Atom feed
From: Bart Schaefer <schaefer@brasslantern.com>
To: Zsh Users <zsh-users@zsh.org>
Subject: Re: Implement CDPATH mechanism in Zsh script
Date: Wed, 7 Sep 2016 00:52:43 -0700	[thread overview]
Message-ID: <160907005243.ZM11694@torch.brasslantern.com> (raw)
In-Reply-To: <CAKc7PVAZqTKQ2aXzQHT1D7kx2-KbwaTGWgKeXJ9JwkKFugO38w@mail.gmail.com>

On Sep 7,  8:13am, Sebastian Gniazdowski wrote:
}
} On 7 September 2016 at 08:04, Bart Schaefer <schaefer@brasslantern.com>
} wrote:
} 
} > Or are you trying to predict how the current directory is going to be
} > changed by "cd", without actually executing "cd"?
} 
} Ah, it's about prediction

The most obvious/foolproof thing would be to use a subshell:

    newPWD=$(cd -q $where >&/dev/null && pwd)

Next would be globbing:

    # Assumes last component of $cdpath is "."
    cdWD=( $^cdpath/$where(N[1]) )
    newPWD=${cdWD:A}

Note this is exactly what :A is supposed to be for, but it gives the
wrong result if CHASE_LINKS or CHASE_DOTS is set, so you may need the
new :P modifier, or the :a modifier instead.  [[ -o ... ]] tests left
as an exercise.


      reply	other threads:[~2016-09-07  7:58 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-03 21:52 Sebastian Gniazdowski
2016-09-07  6:04 ` Bart Schaefer
2016-09-07  6:13   ` Sebastian Gniazdowski
2016-09-07  7:52     ` Bart Schaefer [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=160907005243.ZM11694@torch.brasslantern.com \
    --to=schaefer@brasslantern.com \
    --cc=zsh-users@zsh.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.vuxu.org/mirror/zsh/

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).