From: Peng Yu <pengyu.ut@gmail.com>
To: zsh-users <zsh-users@zsh.org>
Subject: numeric for-loop and string for-loop
Date: Mon, 3 Dec 2018 07:56:26 -0600 [thread overview]
Message-ID: <CABrM6wnW1cap8rP8oW8rbRd00eByL86aQq0gXsn0mmg6Tirn0g@mail.gmail.com> (raw)
Hi,
The following zsh and bash code generate different resutls. I feel the
bash convention is better.
To make the second i as string in zsh, what is the best solution so
that the minimum amount of code is changed. (I'd rather not to change
the second `i` to some other variable name as each for-loop should be
independent from each other, and should not know each other to make
the code work.). Thanks.
$ cat main.sh
#!/usr/bin/env zsh
# vim: set noexpandtab tabstop=2:
set -v
for ((i=0;i<2;++i))
do
echo $i
done
declare -p i
for i in a b
do
declare -p i
done
$ cat main.bash
#!/usr/bin/env bash
# vim: set noexpandtab tabstop=2:
set -v
for ((i=0;i<2;++i))
do
echo $i
done
declare -p i
for i in a b
do
declare -p i
done
$ ./main.sh
for ((i=0;i<2;++i))
do
echo $i
done
0
1
declare -p i
typeset -i i=2
for i in a b
do
declare -p i
done
typeset -i i=0
typeset -i i=0
$ ./main.bash
for ((i=0;i<2;++i))
do
echo $i
done
0
1
declare -p i
declare -- i="2"
for i in a b
do
declare -p i
done
declare -- i="a"
declare -- i="b"
--
Regards,
Peng
next reply other threads:[~2018-12-03 13:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20181203135826epcas1p4dbee2d63b98245bd84c3179f644d2e6c@epcas1p4.samsung.com>
2018-12-03 13:56 ` Peng Yu [this message]
2018-12-03 14:48 ` Peter Stephenson
2018-12-03 14:53 ` Mikael Magnusson
2018-12-03 14:58 ` Mikael Magnusson
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=CABrM6wnW1cap8rP8oW8rbRd00eByL86aQq0gXsn0mmg6Tirn0g@mail.gmail.com \
--to=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).