Re: Advice on troubleshooting function to "unscroll"

[Will Monroe <wtmonroe.ls@gmail.com>]

Marcin,

As Joost also pointed out, the "problem" was that C-v was bound to 
another (older?) function.  Changing it fixed my issue.

And thanks for the advice about studying sources. I actually read your 
question about bookmark with Elisp with interest for that very reason.

Will

On 01/25/2015 03:45 PM, Marcin Borkowski wrote:
>
> On 2015-01-25, at 21:52, Will Monroe <wtmonroe.ls@gmail.com> wrote:
>
>> The test was just opening a lengthy file, usually an info page or an
>> existing org-mode file, pressing C-v a few times, and then using M-x
>> unscroll.  In all cases, I found that M-x unscroll would return to the
>> position just before the last C-v but not to the original position.  In
>> other words, if I pressed C-v two times and then pressed M-x unscroll,
>> in would only go back one C-v.  My intent, and that of the example in
>> the book, is to return the point the position before any C-v key
>> sequences were pressed.
>
> One more thing: it might be the case that C-v was bound to scroll-up in
> Glickstein times, but it is bound to scroll-up-command (which see) now.
> Try to change (eq last-command 'scroll-up) to (eq last-command
> 'scroll-up-command).  (I did not test it, just an idea.)
>
> PS. Another nice way to learn Elisp is to study Emacs sources.  I'm
> about 10% into simple.el, learned quite a bit, and as an additional
> bonus found two or three bugs (I haven't reported them yet, but I'll do
> it soon).  Beware that not everyone would recommend learning good
> practices or style from some of those sources, though.
>
> Hth,
>