zsh-workers
 help / color / mirror / code / Atom feed
From: Ronald Fischer <ynnor@mm.st>
To: zsh-workers@zsh.org
Subject: Bug in parameter expansion with :-    ?
Date: Tue, 10 Jan 2017 16:35:00 +0100	[thread overview]
Message-ID: <1484062500.4181388.843189521.58854935@webmail.messagingengine.com> (raw)

This expands correctly to a '+':

      ${unset_variable:-+}

This however doesn't expand to a '-', but to the empty string:

    ${unset_variable:--}

I didn't find anything in the man page which would explain this
behaviour.

A note aside: Bash expands in the latter case to a dash (-). 

My zsh version:

zsh 5.1.1 (x86_64-unknown-cygwin)


Ronald


             reply	other threads:[~2017-01-10 15:35 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20170110153530epcas3p444d88e1dff85a69371df2472330b006b@epcas3p4.samsung.com>
2017-01-10 15:35 ` Ronald Fischer [this message]
2017-01-10 15:43   ` Peter Stephenson
2017-01-10 15:55     ` Ronald Fischer
2017-01-10 18:41       ` Nikolay Aleksandrovich Pavlov (ZyX)

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=1484062500.4181388.843189521.58854935@webmail.messagingengine.com \
    --to=ynnor@mm.st \
    --cc=zsh-workers@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).