Re: bug#1898 is in your domain

[Kenichi Handa <handa@m17n.org>]

In article <E1LUb1j-0006aw-I7@etlken>, Kenichi Handa <handa@m17n.org> writes:

> In article <E1LQUX3-00072y-Fi@fencepost.gnu.org>, Richard Stallman <rms@gnu.org> writes:
> > Would you please investigate this bug, which is bug report  bug#1898?
> > You are the expert on this code.

> Ok.

The problem was that font-lock incremented
buffer-modified-tick when the buffer was scrolled to show
problematic characters.  I've just installed this fix.

	* international/mule-cmds.el (select-safe-coding-system): Use
	buffer-chars-modified-tick instead of buffer-modified-tick.

---
Kenichi Handa
handa@m17n.org


> > Content-Type: text/plain; charset=ISO-8859-15
> > From: Richard M Stallman <rms@gnu.org>
> > To: emacs-pretest-bug@gnu.org
> > Subject: 23.0.60; choosing coding system
> > bcc: rms-outgoing@gnu.org
> > Reply-to: rms@gnu.org
> > --text follows this line--
> > When I visit the file losing.mbox in Pmail using C-u M-x pmail RET
> > losing.mbox RET, then run M-x lynx (see code below), it asks me to
> > specify the coding system.  When I type RET to choose the default,
> > raw-text, it gives me this error:

> >    select-safe-coding-system: Cancelled because the buffer was modified

> > This only fails the first time.  If you type M-x lynx again, it works.
> > However, if you type the . command which makes Pmail display the
> > message, the next M-x lynx will fail again.  I did not report this
> > before, because the problem was very inconvenient to reproduce in
> > Rmail.  Reproducing it with Pmail is much easier because you can re-arm
> > the bug with the . command.

> > I tried to investigate a previous case of this, and found that the
> > buffer was indeed marked as modified during the function that read the
> > coding system name.  That was inside coding.c, which I do not
> > understand, so I did not try to track it down.

> > (The buffer text is not in fact changed.  I have no easy way
> > to see if any text properties were changed.  But maybe this
> > does not matter.)

> > (defun lynx ()
> >   (interactive)
> >   (unless (re-search-backward "^From wget@gnu.org" nil t)
> >     (goto-char (point-min)))
> >   (save-excursion
> >     (search-forward "/bin/sh")
> >     (forward-line 3)
> >     (let ((start (point)))
> >       (search-forward "!EOF!")
> >       (beginning-of-line)
> >       (write-region start (point) "~/foo.html"))))

> > Here's the mailbox, uuencoded.
> [...]