From: <tomas@tuxteam.de>
To: Eli Zaretskii <eliz@gnu.org>
Cc: help-gnu-emacs@gnu.org
Subject: Re: how to calculate the size of string in bytes?
Date: Tue, 18 Aug 2015 21:30:49 +0200 [thread overview]
Message-ID: <20150818193049.GA24519@tuxteam.de> (raw)
In-Reply-To: <83fv3glfm0.fsf@gnu.org>
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On Tue, Aug 18, 2015 at 07:35:03PM +0300, Eli Zaretskii wrote:
> > Date: Tue, 18 Aug 2015 18:01:45 +0200
> > Cc: help-gnu-emacs@gnu.org
> > From: <tomas@tuxteam.de>
> >
> > I was thinking of "characters not expressible in UTF-8". Does Emacs have
> > those?
>
> Raw bytes come out as themselves (which might be invalid UTF-8), but
> that's not a failure, that's the user's fault, because they had those
> bytes in the buffer to begin with.
I was having difficulties in understanding you, so I tried it out. Now
I understand: Emacs's internal (raw) coding system can represent "characters
not expressible in utf-8". The function encode-coding-string passes those
bytes silently through, outputting an invalid utf-8 sequence.
So I venture the guess that when the Emacs buffer contains something
epressible as valid utf-8, 'utf-8 and 'raw are equivalent (what about
combining characters?)
Thanks for the insights
- -- t
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next prev parent reply other threads:[~2015-08-18 19:30 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-18 9:11 how to calculate the size of string in bytes? Sam Halliday
2015-08-18 10:13 ` tomas
2015-08-18 14:37 ` Eli Zaretskii
2015-08-18 14:45 ` tomas
2015-08-18 15:00 ` Eli Zaretskii
2015-08-18 16:01 ` tomas
2015-08-18 16:35 ` Eli Zaretskii
2015-08-18 19:30 ` tomas [this message]
2015-08-18 19:49 ` Eli Zaretskii
2015-08-18 20:11 ` tomas
2015-08-18 21:47 ` Stefan Monnier
2015-08-19 5:43 ` tomas
[not found] ` <mailman.8577.1439934462.904.help-gnu-emacs@gnu.org>
2015-08-19 8:57 ` Sam Halliday
2015-08-19 9:22 ` Sam Halliday
2015-08-19 19:47 ` Stefan Monnier
[not found] ` <mailman.8504.1439892841.904.help-gnu-emacs@gnu.org>
2015-08-18 10:43 ` Sam Halliday
2015-08-18 11:47 ` tomas
[not found] ` <mailman.8510.1439898432.904.help-gnu-emacs@gnu.org>
2015-08-18 12:06 ` Sam Halliday
2015-08-18 14:34 ` Eli Zaretskii
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