From: Bart Schaefer <schaefer@brasslantern.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: [PATCH 1/3]: Add named references
Date: Fri, 10 Feb 2023 19:55:17 -0800 [thread overview]
Message-ID: <CAH+w=7YuT3aHL4WDcunftO8xj48A4oQR5Smo0ryUsTrF=xOpQQ@mail.gmail.com> (raw)
In-Reply-To: <CAH+w=7YVJO-HkneMpnfBbqBztPaXdXTD=mo-vHbdUW00TiFVBQ@mail.gmail.com>
On Fri, Feb 10, 2023 at 7:04 PM Bart Schaefer <schaefer@brasslantern.com> wrote:
>
> > > It might deprive us of many clever tricks but parse_subscript() could
> > > gain a flag to disable anything questionable like command substitution
> > > and math evaluation side-effects.
I'm not sure what to do about math side-effects, but I've hit upon the
idea of expanding subscripts that appear in named references with
EXECOPT set to zero (noexec). That reduces $(...) to the empty
string, except for the special-case $(<file) that is being discussed
in another thread.
Switching to noexec around singsub() in getarg() is quite easy, and as
previously mentioned you can still do fully dynamic subscripts with
${(P)...}.
next prev parent reply other threads:[~2023-02-11 3:55 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-06 2:21 Bart Schaefer
2023-02-08 3:45 ` Oliver Kiddle
2023-02-08 4:59 ` Bart Schaefer
2023-02-08 23:16 ` Bart Schaefer
2023-02-09 0:47 ` Oliver Kiddle
2023-02-09 2:01 ` Oliver Kiddle
2023-02-09 5:45 ` Bart Schaefer
2023-02-09 4:49 ` Bart Schaefer
2023-02-09 20:49 ` Oliver Kiddle
2023-02-09 23:07 ` Bart Schaefer
2023-02-11 3:04 ` Bart Schaefer
2023-02-11 3:55 ` Bart Schaefer [this message]
2023-02-11 5:36 ` Speaking of dangerous referents Bart Schaefer
2023-02-12 8:00 ` Oliver Kiddle
2023-02-12 8:34 ` Bart Schaefer
2023-02-11 7:02 ` [PATCH 1/3]: Add named references Oliver Kiddle
2023-02-11 7:45 ` Bart Schaefer
2023-02-11 23:43 ` Bart Schaefer
2023-02-11 23:45 ` Bart Schaefer
2023-02-12 7:38 ` Oliver Kiddle
2023-02-12 9:02 ` Oliver Kiddle
2023-02-12 18:59 ` Bart Schaefer
2023-02-12 19:45 ` PM_* flags in zsh.h (was Re: [PATCH 1/3]: Add named references) Bart Schaefer
2023-02-12 21:01 ` Oliver Kiddle
2023-02-12 22:54 ` [PATCH 1/3]: Add named references Oliver Kiddle
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='CAH+w=7YuT3aHL4WDcunftO8xj48A4oQR5Smo0ryUsTrF=xOpQQ@mail.gmail.com' \
--to=schaefer@brasslantern.com \
--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).