bug#9528: 24.0.50; Info navigation

[Eli Zaretskii]

> Date: Mon, 19 Sep 2011 12:20:55 +0200
> From: Dani Moncayo <dmoncayo@gmail.com>
> Cc: juri@jurta.org, 9528@debbugs.gnu.org
> 
> > The reason it goes to Functions is because <DEL> from Macros visited 2
> > nodes: first Functions (it's Prev for Macros, see the header line when
> > you are in Macros), and then Related Topics.  So typing l goes back to
> > Functions.  Type one more l and you are in Macros.
> >
> > Note that "C-h l" does not say "the last node _presented_", it says
> > "the last node _visited_".
> 
> IMO, users should not care about the underlying implementation, i.e,
> in the example below, I have _seen_ only two nodes, so that when I
> type `l' in the second one, I'd expect to jump back to the first one.

It's not the implementation, it's part of documented behavior of DEL:

  Scroll one screenful back in Info, considering all nodes as one
  sequence                           ----------------------------
  --------

IOW, DEL (and SPC) move between nodes of the node tree in the
depth-first-search order.  And l moves back in the same order.

> > Even if the result is unexpected by someone who is not used to Info, I
> > think it's Baaad to have Emacs's Info reader behave differently than
> > the stand-alone reader.
> 
> That divergence is bad, obviously.  But IMO, If the change is
> considered good, should be made both in Emacs and the stand-alone
> reader.

Feel free to suggest this change on the Texinfo mailing list.