From: "H. Peter Anvin" <hpa@zytor.com>
To: David Newall <davidn@davidnewall.com>
Cc: Jan Engelhardt <jengelh@computergmbh.de>,
"John T." <j.thomast@yahoo.com>,
linux-kernel@vger.kernel.org
Subject: Re: UTF-8 and Alt key in the console
Date: Sat, 29 Mar 2008 10:05:01 -0700 [thread overview]
Message-ID: <47EE76BD.2000708@zytor.com> (raw)
In-Reply-To: <47EDE2A4.8080702@davidnewall.com>
David Newall wrote:
> Jan Engelhardt wrote:
>> What do you mean by self-terminating? There is no easy
>> synchronization like in UTF-8, given you are anywhere inside
>> a text stream, how do you know (a) you are already in an
>> escape sequence and (b) how to figure out the rebegin of
>> normal text.
>
> It's not very useful being able to tell you are inside a escape sequence
> unless you see that sequence from the start. You do need the complete
> sequence to make sense of it.
I think what Jan is alluding to is the property of UTF-8 text that you
can start in the middle of a string and either skip an incomplete
character or find the beginning of it. If you can search backwards, you
can find the beginning of an escape sequence, too; the "skip incomplete"
functionality is missing, though, but as you say, isn't actually all
that useful in real life *for the applications which use these kinds of
escape sequences.*
-hpa
next prev parent reply other threads:[~2008-03-29 17:05 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-23 15:15 UTF-8 and Alt key in the console John T.
2008-03-23 15:29 ` Jan Engelhardt
2008-03-23 15:46 ` John T.
2008-03-23 16:54 ` H. Peter Anvin
2008-03-23 17:47 ` John T.
2008-03-23 17:55 ` H. Peter Anvin
2008-03-23 18:13 ` John T.
2008-03-23 18:46 ` Jan Engelhardt
2008-03-28 23:26 ` H. Peter Anvin
2008-03-29 0:07 ` Jan Engelhardt
2008-03-29 0:23 ` H. Peter Anvin
2008-03-29 0:44 ` Jan Engelhardt
2008-03-29 1:07 ` H. Peter Anvin
2008-03-29 6:33 ` David Newall
2008-03-29 17:05 ` H. Peter Anvin [this message]
2008-04-01 20:13 ` Jan Engelhardt
2008-04-01 20:22 ` H. Peter Anvin
2008-04-02 0:02 ` David Newall
2008-04-02 0:38 ` H. Peter Anvin
2008-04-06 8:46 ` Marko Macek
2008-04-06 10:14 ` David Newall
2008-04-06 16:37 ` H. Peter Anvin
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