From: dana <dana@dana.is>
To: Peng Yu <pengyu.ut@gmail.com>
Cc: zsh-users <zsh-users@zsh.org>
Subject: Re: How to yield an error with zparseopts when non-matching options are seen?
Date: Sun, 2 Dec 2018 18:13:36 -0600 [thread overview]
Message-ID: <632A7107-E065-4C04-B3F1-6362245F1518@dana.is> (raw)
In-Reply-To: <CABrM6wkV7yi=5OrwW6JnFSuLMdX0xeryL0VF3fP5YpWGEXHvUA@mail.gmail.com>
On 2 Dec 2018, at 16:28, Peng Yu <pengyu.ut@gmail.com> wrote:
>In the following example, -b has not been defined as an option, but
>`zparseopts` return successfully. Is there a way to let it yield an
>error when it sees such a case?
Not that i know of. If it didn't swallow up `--` you could check to see if the
first element remaining in argv is any other string beginning with a hyphen, but
since it does you can only rely on that method when no other argument to your
function/script can ever start with a hyphen:
% myfunc() {
local -a opts
zparseopts -D -a opts a b c
print -r - $? / $opts / $@
}
% myfunc -a -b -foo
0 / -a -b / -foo
% myfunc -a -b -- -foo
0 / -a -b / -foo
If you're certain that that's the case (e.g., the first operand must be a digit
or an absolute path or something), then just abort if `[[ $1 == -* ]]`
dana
next prev parent reply other threads:[~2018-12-03 0:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-02 22:28 Peng Yu
2018-12-03 0:13 ` dana [this message]
2018-12-03 0:44 ` dana
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=632A7107-E065-4C04-B3F1-6362245F1518@dana.is \
--to=dana@dana.is \
--cc=pengyu.ut@gmail.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).