* Re: possible bug in zsh concerning a for loop
@ 2022-03-18 10:12 Leander Jedamus
0 siblings, 0 replies; 5+ messages in thread
From: Leander Jedamus @ 2022-03-18 10:12 UTC (permalink / raw)
To: Zsh Users
Thanks Jun T.
${=items} solved it for me. When I used to set the setopt-variable, it
just messed my system...
Thanks
Leander Jedamus
--
.o.
_^_ Ich bin nicht das Problem. Ich bin die Lösung.
^ permalink raw reply [flat|nested] 5+ messages in thread
* possible bug in zsh concerning a for loop
@ 2022-03-18 8:21 Leander Jedamus
0 siblings, 0 replies; 5+ messages in thread
From: Leander Jedamus @ 2022-03-18 8:21 UTC (permalink / raw)
To: Zsh Users
Hi!
I tried to get a normal for loop to work with zsh. Now I think I found a
bug (zsh is 5.7.1).
A short script is
----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<
#!/bin/zsh
items="item1 item2 item3"
for i in $items; do
echo "\"$i\""
done
----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<
This prints:
"item1 item2 item3"
It should print:
"item1"
"item2"
"item3"
I hope that somebody can verify this.
Thanks in advance
Leander Jedamus
--
.o.
_^_ Ich bin nicht das Problem. Ich bin die Lösung.
^ permalink raw reply [flat|nested] 5+ messages in thread
* possible bug in zsh concerning a for loop
@ 2022-03-18 7:33 Leander Jedamus
2022-03-18 8:45 ` Jun T
0 siblings, 1 reply; 5+ messages in thread
From: Leander Jedamus @ 2022-03-18 7:33 UTC (permalink / raw)
To: Zsh Users
Hi!
I tried to get a normal for loop to work with zsh. Now I think I found a
bug.
A short script is
----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<
#!/bin/zsh
items="item1 item2 item3"
for i in $items; do
echo "\"$i\""
done
----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<----8<
This prints:
"item1 item2 item3"
It should print:
"item1"
"item2"
"item3"
I hope that somebody can verify this.
Thanks in advance
Leander Jedamus
--
.o.
_^_ Ich bin nicht das Problem. Ich bin die Lösung.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: possible bug in zsh concerning a for loop
2022-03-18 7:33 Leander Jedamus
@ 2022-03-18 8:45 ` Jun T
2022-03-18 14:14 ` Vincent Lefevre
0 siblings, 1 reply; 5+ messages in thread
From: Jun T @ 2022-03-18 8:45 UTC (permalink / raw)
To: zsh-users; +Cc: Leander Jedamus
> 2022/03/18 16:33, Leander Jedamus <ljedamus@googlemail.com> wrote:
>
> items="item1 item2 item3"
>
> for i in $items; do
> echo "\"$i\""
> done
> This prints:
> "item1 item2 item3"
This is not a bug but a feature of zsh.
Yes, it is incompatible with other shells (sh/ksh/bash ...),
and one of the most significant incompatibilities.
See 'man zshexpn' and search for SH_WORD_SPLIT.
> It should print:
> "item1"
> "item2"
> "item3"
You can get this by:
[1] use array (instead of scalar parameter items)
a=( item1 item2 item3 )
for i in $a; do ... done
[2] use ${=items}
for i in ${=items}; do ... done
[3] set SH_WORD_SPLIT option
setopt SH_WORD_SPLIT
for i in $items; do ... done
I prefer [1], but it is up to you which method you use.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: possible bug in zsh concerning a for loop
2022-03-18 8:45 ` Jun T
@ 2022-03-18 14:14 ` Vincent Lefevre
0 siblings, 0 replies; 5+ messages in thread
From: Vincent Lefevre @ 2022-03-18 14:14 UTC (permalink / raw)
To: Jun T; +Cc: zsh-users, Leander Jedamus
On 2022-03-18 17:45:22 +0900, Jun T wrote:
> You can get this by:
>
> [1] use array (instead of scalar parameter items)
>
> a=( item1 item2 item3 )
> for i in $a; do ... done
>
> [2] use ${=items}
>
> for i in ${=items}; do ... done
>
> [3] set SH_WORD_SPLIT option
>
> setopt SH_WORD_SPLIT
> for i in $items; do ... done
>
> I prefer [1], but it is up to you which method you use.
[1] has the advantage that it supports arguments containing spaces.
--
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
^ permalink raw reply [flat|nested] 5+ messages in thread
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