From: "Bart Schaefer" <schaefer@candle.brasslantern.com>
To: zsh-workers@sunsite.auc.dk
Subject: Prompt expansion: $((%)foo} != $(print -P $foo)
Date: Mon, 20 Mar 2000 06:45:19 +0000 [thread overview]
Message-ID: <1000320064519.ZM18353@candle.brasslantern.com> (raw)
The order in which parameter expansion vs. prompt %x expansion takes place
appears to be reversed for ${(%)...} and $(print -P ...). This is visible
in this situation:
zsh% setopt promptsubst
zsh% PS1='%$[COLUMNS-20]>...%% >some text here %% '
some text here %
The prompt and the output of "print -P" are truncated at COLUMNS-20, so in
that case the $[...] was expanded before %N>...> was parsed. However:
some text here % echo ${(%)PS1}
[COLUMNS-1]some text here %
There, %$ was taken as a prompt token (and ignored) before parameters were
expanded. A workaround is to use ${(%)${(e)PS1}}, but of course that's not
right when promptsubst is NOT set.
--
Bart Schaefer Brass Lantern Enterprises
http://www.well.com/user/barts http://www.brasslantern.com
next reply other threads:[~2000-03-20 6:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-03-20 6:45 Bart Schaefer [this message]
2000-03-20 12:04 Sven Wischnowsky
2000-03-20 17:11 ` 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=1000320064519.ZM18353@candle.brasslantern.com \
--to=schaefer@candle.brasslantern.com \
--cc=zsh-workers@sunsite.auc.dk \
/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).