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Date: Thu, 19 Oct 2023 23:35:34 +0900
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Subject: Re: [PHP-DEV] [RFC] [Discussion] Add multibyte trim function
 (mb_trim, mb_ltrim and mb_rtrim)
From: youkidearitai@gmail.com (youkidearitai)

2023=E5=B9=B410=E6=9C=8819=E6=97=A5(=E6=9C=A8) 22:33 Niels Dossche <dossche=
.niels@gmail.com>:
>
> Hi Yuya
>
> On 19/10/2023 13:57, youkidearitai wrote:
> > Hi, internals.
> >
> > 8ctopus san can't send email, so I'm writing new RFC for multibyte
> > trim function.
> > https://wiki.php.net/rfc/mb_trim
> > https://github.com/php/php-src/pull/12459
> >
> > I would like to under discussion.
>
> Thanks for this.
>
> I have a question about the .. support:
> You state "Mapping with other character codes may be incompatible", for o=
ne of the reasons not to support this.
> Can you please explain this a bit more?
>
> Also, I notice at the top of your RFC it still says: "Status: Draft", I t=
hink you forgot to change this.
> Similarly, the RFC is not listed under discussion on https://wiki.php.net=
/rfc.
>
> >
> > Regards.
> > Yuya
> >
>
> Kind regards
> Niels
>
> --
> PHP Internals - PHP Runtime Development Mailing List
> To unsubscribe, visit: https://www.php.net/unsub.php
>

Hi, Niels.
Thank you for your question and Wiki status is changed.

> You state "Mapping with other character codes may be incompatible", for o=
ne of the reasons not to support this.
> Can you please explain this a bit more?

Sure.
For example, Japanese character code, If try to match hiragana for
each character code,
it will end up with different bytes.

Hiragana letter matches in UTF-8.
[=E3=81=81-=E3=82=9E]

But other character code is sometimes different.
example: EUC-JP
[=E3=81=81-=E3=82=93=E3=82=9B=E3=82=9D=E3=82=9E]

Sometimes the order is different why I say "Mapping with other
character codes may be incompatible".
Therefore, I thought it was impossible to express the ".." notation.

Regards
Yuya

--=20
---------------------------
Yuya Hamada (tekimen)
- https://tekitoh-memdhoi.info
- https://github.com/youkidearitai
-----------------------------