From: Mauro Aranda <maurooaranda@gmail.com>
To: "Harald Jörg" <haj@posteo.de>, 66178@debbugs.gnu.org
Subject: bug#66178: 30.0.50; cperl-mode inconsistent hash key fontification
Date: Sun, 24 Sep 2023 19:21:02 -0300 [thread overview]
Message-ID: <8b2fff5e-dffe-1c3d-af6e-e61fb0774ced@gmail.com> (raw)
In-Reply-To: <8734z3y9cp.fsf@oook.m.uunet.de>
tags 66178 notabug
close 66178
quit
On 24/9/23 10:44, Harald Jörg wrote:
> tags 66178 + wontfix
> thanks
>
> Mauro Aranda <maurooaranda@gmail.com> writes:
>
>> emacs -Q
>> C-x C-f bug.pl
>> M-x cperl-mode
>> my %factorial = (
>> 0 => 1,
>> zero => 1
>> );
>>
>> zero is recognized as a string, 0 is not.
>
> This might look surprising, but it is intentional.
>
> zero is a bareword which undergoes hash-key stringification.
>
> The digit 0, on the other hand, is converted to a string according to
> Perl's type conversion rules. That is a different thing: Perl's type
> conversion converts all of 0, 000, 0.0, 0E0 to the hash key "0".
>
> Let me expand your example to demonstrate some more cases where the hash
> key is (correctly) not fontified as a string:
>
> my %hash = (
> "0" => 'The string "0"',
> "00" => 'The string "00"',
> 0 => 'A number which is converted to the string "0"',
> 00 => 'A number which is converted to the string "0"',
> 0.0 => 'A number which is converted to the string "0"',
> 0E0 => 'A number which is converted to the string "0"',
> zero => "A bareword which is stringified",
> zero() => "The function's return value is the key",
> +zero => "The function's return value is the key",
> );
Thank you for the explanation, it makes more sense to me now. I'm
tagging this one as notabug and closing.
prev parent reply other threads:[~2023-09-24 22:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-24 11:02 bug#66178: 30.0.50; cperl-mode inconsistent hash key fontification Mauro Aranda
2023-09-24 13:44 ` Harald Jörg
2023-09-24 22:21 ` Mauro Aranda [this message]
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=8b2fff5e-dffe-1c3d-af6e-e61fb0774ced@gmail.com \
--to=maurooaranda@gmail.com \
--cc=66178@debbugs.gnu.org \
--cc=haj@posteo.de \
/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 external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.