zsh-users
 help / color / mirror / code / Atom feed
From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-users@zsh.org
Subject: Re: globbing in conditional expressions
Date: Tue, 13 May 2014 08:41:17 -0700	[thread overview]
Message-ID: <140513084117.ZM22925@torch.brasslantern.com> (raw)
In-Reply-To: <20140508201936.GB53652@isis.sigpipe.cz>

On May 8, 10:19pm, Roman Neuhauser wrote:
}
} maybe a crazy idea...  how about something like [[ -m pattern ]] which
} would succeed iff pattern matched at least one path?  this could be
} somewhat more amenable to shortcircuiting.

Returning to this after a bit of a detour through [[ ... ]] expression
parsing:

You could define (via zmodload) an operator that applies filename
generation to its argument, but changes to the internals of globbing
would be needed to make a short-circuit happen.  Then those changes
would have to be exposed somehow so that the operator could use them.

As I mentioned before, in the case of the match failing this would be
exactly as expensive as not short-circuiting.


  reply	other threads:[~2014-05-13 15:41 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-07 12:41 Roman Neuhauser
2014-05-07 14:44 ` Peter Stephenson
2014-05-08 10:55   ` Daniel Shahaf
2014-05-08 11:20     ` Peter Stephenson
2014-05-08 15:34       ` Bart Schaefer
2014-05-08 20:19         ` Roman Neuhauser
2014-05-13 15:41           ` Bart Schaefer [this message]
2014-05-14  4:19             ` Daniel Shahaf
2014-05-14  7:18               ` Bart Schaefer
2014-05-15  4:55                 ` Bart Schaefer
2014-05-15  9:35                   ` Daniel Shahaf
2014-05-15 14:33                     ` Bart Schaefer
2014-05-15  9:29                 ` Daniel Shahaf
2014-05-15 14:50                   ` Bart Schaefer
2014-05-26 23:52                     ` Daniel Shahaf
2014-05-30  3:59                       ` Bart Schaefer
2014-05-30  8:47                         ` Peter Stephenson
2014-05-30 15:55                           ` Bart Schaefer
2014-05-31  4:43                             ` Bart Schaefer
2014-05-31 17:34                               ` Daniel Shahaf
2014-05-31 17:59                                 ` Bart Schaefer
2014-06-02  9:40                                   ` Peter Stephenson
2014-06-02 12:57                                     ` Daniel Shahaf
2014-06-02 14:15                                       ` Peter Stephenson
2014-05-30 14:45                         ` Daniel Shahaf
2014-05-14  7:42               ` Christoph (Stucki) von Stuckrad
2014-05-14 21:09               ` Roman Neuhauser
2014-05-15  9:14                 ` Daniel Shahaf
2014-05-15 10:05                   ` Roman Neuhauser
2014-05-07 14:57 ` Mikael Magnusson
2014-05-07 15:03 ` Bart Schaefer

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=140513084117.ZM22925@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).