bug#18308: 24.4.50; Info viewer cannot follow menu entry for '(texinfo) @- @hyphenation'

[Eli Zaretskii <eliz@gnu.org>]

> From: Vincent Belaïche <Vincent.b.1@hotmail.fr> 
> Cc:  18308@debbugs.gnu.org, Texinfo <bug-texinfo@gnu.org>
> Date: Fri, 22 Aug 2014 15:01:43 +0200
> 
> - texi2any must collapse multiple blanks in node names *everywhere*, but
>   it is still allowed to break and indent a node name containing a blank
>   accross a line in the case of a note.
> 
> - info viewer must handle node name split accross lines, but it does not
>   need to make multiblank reduction in other-cases
> 
> Now, if the above is agreable, then in the case of our problem this
> would imply that when texi2any meets that kind of menu entry
> 
> * NODE    NAME:: SOME TITLE
> 
> It must convert it to within the info file:
> 
> * NODE    NAME: NODE NAME. SOME TITLE

Or it should remove the extra blanks, i.e. produce this:

* NODE NAME:: SOME TITLE

Or it could emit a warning, or even error out.

IOW, I see no reason to silently tolerate such cases.  They are surely
unintended.

> Eli:
> 1) do you agree on my re-caping and suggestion ?

Almost, see above.

> 2) do you think that all the same, robustifying the info viewer in the
>    case of menu entry has some benefit --- after all this allows:
>    2.1) to cope with job done by earlier versions of makeinfo in this
>         corner case
>    2.2) to have very slightly smaller info file still in this corner case

I'm on the fence about this.