From: Mikael Magnusson <mikachu@gmail.com>
To: zsh workers <zsh-workers@zsh.org>
Subject: Re: command line not refresh properly with wide chars when cursor would have been inside one
Date: Sat, 16 Oct 2010 14:36:45 +0200 [thread overview]
Message-ID: <AANLkTi=NENPEeVmxgqQqT=R_Lfb9grY6VtQGYtnmagO9@mail.gmail.com> (raw)
In-Reply-To: <AANLkTimh+E7u1n1+t4bR1On5wO-xGcJS9ssdp+ERmGZw@mail.gmail.com>
On 16 October 2010 13:21, Mikael Magnusson <mikachu@gmail.com> wrote:
> zsh -f
> % echo ののの
> % uuuuuu<up>
> % echo の [cursor here]
>
> if you type one more (or less, or three or five more) letters, the
> line refreshes properly, but when it would have ended up in the middle
> of a wide char, the line gets cut off. This has bothered me for quite
> some time but I've never been able to figure out the exact
> circumstances before. Verified in latest cvs and 4.3.6 with -f.
Actually the problem is when the previous line ends in a wide char in
the new line, doesn't matter where the cursor is.
Hmm, it seems the problem is somewhere in refreshline (surprise,
right?). First all the characters of "echo の" are printed one by one,
but then ol is advanced past the end of the old string "uuuuuu" and
somehow after that are ののの which causes
/* skip past all matching characters */
for (; nl->chr && ZR_equal(*ol, *nl); nl++, ol++, ccs++)
;
to trigger, which is why the rest of the string isn't output. Why this
happens is a bit of a mystery to me still.
--
Mikael Magnusson
next prev parent reply other threads:[~2010-10-16 12:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-16 11:21 Mikael Magnusson
2010-10-16 12:36 ` Mikael Magnusson [this message]
2010-10-16 12:42 ` Mikael Magnusson
2010-10-17 18:00 ` Peter Stephenson
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