end-of-visual-line / wrapped lines

end-of-visual-line / wrapped lines

[David Reitter]

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I've run into a rather general problem with `end-of-visual- 
line' (bound to C-e in visual-line-mode).

If lines are wrapped, it moves to the beginning of the next visual  
line instead.  In my earlier implementation of this, I actually moved  
one character back, which is correct when word-wrap is turned on,  
because the space at the end of the current line is skipped (and  
that's okay).  However, if word-wrap is turned off, then there is no  
space and also no newline, so nothing that could be skipped.

It seems to be a design issue:  how does on place the point at a given  
position, but ensure that it is displayed at the end of a visual line  
rather than at the beginning of the next one?
I don't know how to do that, and it might not be possible at all, by  
principle.


On 30 Jul 2008, at 01:27, José Figueroa-O'Farrill wrote:

>
> I'm not sure this is a bug or a feature, but the behaviour is bizarre,
> IMHO and at the very least I'd like to turn it off.  It happens in
> whenever auto-fill-mode is on and even in the vanilla Aquamacs  
> without customizations.  It happens when the frame is not much wider  
> than the
> value of 'fill-column'.  It is difficult to describe in words, but I
> will try my best.
>
> Consider a paragraph of text consisting of several (>3, say) lines,
> whose lines have been wrapped.  For example, take the above paragraph
> starting this email.  Suppose I put the cursor at the end of the third
> line (after 'Aquamacs without'), I type a space and C-d.  The line
> gets wrapped and the ... appears on the margin.  So far, so good.  If
> I now do a C-e, the cursor does not move to the end of the line (which
> would be at the end of 'than the') but rather stops between the 'u'
> and 's' of 'customization'.  Is this intentional?  If so, why?  and,
> more importantly, how do I reinstate the old behaviour?


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Re: end-of-visual-line / wrapped lines

[Chong Yidong]

David Reitter <david.reitter@gmail.com> writes:

> I've run into a rather general problem with `end-of-visual-
> line' (bound to C-e in visual-line-mode).
>
> If lines are wrapped, it moves to the beginning of the next visual
> line instead.  In my earlier implementation of this, I actually moved
> one character back, which is correct when word-wrap is turned on,
> because the space at the end of the current line is skipped (and
> that's okay).  However, if word-wrap is turned off, then there is no
> space and also no newline, so nothing that could be skipped.

I wouldn't worry about this right now.