From: Ray Andrews <rayandrews@eastlink.ca>
To: Zsh Users <zsh-users@zsh.org>
Subject: piping surprise
Date: Wed, 3 Apr 2024 06:17:14 -0700 [thread overview]
Message-ID: <a35f798c-0e1e-49cc-89d1-98c28d62bdfb@eastlink.ca> (raw)
[-- Attachment #1: Type: text/plain, Size: 665 bytes --]
Speaking of female logic, I stumbled upon this:
function bbb ()
{
vvar=4
print -l "\nShall\nI\ncompare thee\nto a\nsummer's day?"
}
function aaa ()
{
local vvar=1
bbb
echo "\nvvar is $vvar"
vvar=2
echo "\n=============\n"
bbb | grep 'a'
echo "\nvvar is $vvar"
}
% aaa
Shall
I
compare thee
to a
summer's day?
vvar is 4
=============
Shall
compare thee
to a
summer's day?
vvar is 2
------------------------------------------------------------------
By what thinking does the piping of a function's output thru grep cancel
the assignment to the variable? Do we really want that?
[-- Attachment #2: Type: text/html, Size: 1292 bytes --]
next reply other threads:[~2024-04-03 13:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-03 13:17 Ray Andrews [this message]
2024-04-03 15:00 ` Mikael Magnusson
2024-04-03 15:49 ` Ray Andrews
2024-04-05 20:32 ` Bart Schaefer
2024-04-05 23:11 ` Ray Andrews
2024-04-07 6:34 ` Lawrence Velázquez
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=a35f798c-0e1e-49cc-89d1-98c28d62bdfb@eastlink.ca \
--to=rayandrews@eastlink.ca \
--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).