bug#32024: 27.0; [PATCH] `imenu--generic-function'

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sat, 30 Jun 2018 15:53:22 -0700 (PDT)
> From: Drew Adams <drew.adams@oracle.com>
> 
> Attached is a patch for two bugs in `imenu--generic-function'.  I ran
> into them when using a function value for argument REGEXP, though
> neither has to do particularly with that use case.  Instead, they both
> have to do with the case where items are within comments or strings,
> which might be skipped.
> 
> 1. When checking whether the current item is inside a comment or string,
>    it's necessary to first move point to position START.  Otherwise, the
>    test is made at bol (which might not be within a comment or string,
>    even though the START position is).
> 
> 2. At the end, it's necessary to remove any empty menus that could have
>    been added.  That can happen because of skipping things inside
>    comments or strings.

Thanks.

Applying this produces the following warning from the byte compiler:

  In end of data:
  imenu.el:1056:1:Warning: the function `imenup-delete-if-not' is not known to
      be defined.

And indeed, I cannot find that function anywhere in Emacs.