bug#6455: 23.2; Backspace in view mode

[Francis Wright]

> From: Glenn Morris [mailto:rgm@gnu.org]
> Sent: Friday, June 18, 2010 7:54 PM
> To: Francis Wright
> Cc: 6455@debbugs.gnu.org
> Subject: Re: bug#6455: 23.2; Backspace in view mode
> 
> "Francis Wright" wrote:
> 
> > Run emacs -Q.
> > Open a file using view-file (or v in dired mode).
> > Move to a point well away from the beginning of the buffer.
> > Press the backspace key.
> > The error message generated is "Beginning of buffer", which is not true.
> > I think the error message should be the same as generated by pressing
> > (say) the delete key, namely "Buffer is read-only: #<buffer prizes.sh>".
> 
> This is a confusing report. The backspace key in View-mode runs
> View-scroll-page-backward, which scrolls the buffer backwards until it
> bumps into the start of the buffer. It seems to me that it is doing
> the right thing. Try it on a buffer where the whole buffer does not
> fit into the window at once, after first moving to the end of the
> buffer.
> 
> Why should it instead say that the buffer is read-only, when it is not
> trying to modify the buffer in any way?

Sorry, you're right. I overlooked the binding of the backspace key; I assumed it
was supposed to delete characters backwards.