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Re: [bug] $scalar[(pws[\0])1] or $scalar[(pws[á])1] doesn't work

X-seq: zsh-workers 50990
From: Stephane Chazelas <stephane@xxxxxxxxxxxx>
To: Zsh hackers list <zsh-workers@xxxxxxx>
Subject: Re: [bug] $scalar[(pws[\0])1] or $scalar[(pws[á])1] doesn't work
Date: Fri, 18 Nov 2022 12:25:13 +0000
Archived-at: <https://zsh.org/workers/50990>
In-reply-to: <20221113081452.bk7zdnbc6qvqjxef@chazelas.org>
List-id: <zsh-workers.zsh.org>
Mail-followup-to: Zsh hackers list <zsh-workers@xxxxxxx>
References: <20221113081452.bk7zdnbc6qvqjxef@chazelas.org>

2022-11-13 08:14:52 +0000, Stephane Chazelas:
[...]
> $ a=$'foo\0bar'
> $ echo $a[(pws[\0])1]
> f
> 
> Expected "foo".
> 
> It seems that's some missing metafication as confirmed by:
[...]

It seems the problems are not limited to the s subscript flag.

$ ltrace -e getpwnam zsh -c "u=$'st\u00e9ph\u00e1ne';  echo *(u:\$u:)"
zsh->getpwnam("st\303\251ph\303\203\201ne")                                                       = 0
zsh:1: unknown username 'stépháne'
+++ exited (status 1) +++

See \241 changed to \203\201 in the call to getpwnam().

The error message has the correct name though.

-- 
Stephane

Follow-Ups:
- Re: [bug] $scalar[(pws[\0])1] or $scalar[(pws[á])1] doesn't work
  - From: Jun. T

References:
- [bug] $scalar[(pws[\0])1] or $scalar[(pws[á])1] doesn't work
  - From: Stephane Chazelas

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