[FeatReq] New option for `org-entry-properties' WHICH argument?

[Thorsten Jolitz <tjolitz@gmail.com>]

Hi List, 

what about adding one more option for WHICH

,----[ C-h f org-entry-properties RET ]
| org-entry-properties is a compiled Lisp function in `org.el'.
| 
| (org-entry-properties &optional POM WHICH SPECIFIC)
| [...]
| If WHICH is nil or `all', get all properties.  If WHICH is
| `special' or `standard', only get that subclass.  If WHICH
| is a string only get exactly this property.  SPECIFIC can be a string, the
| specific property we are interested in.  Specifying it can speed
| things up because then unnecessary parsing is avoided.
`----

that would filter out all Org related properties, i.e. the properties
the system itself uses, and thus return only the application related
properties?

E.g. option 'non-org'

with semantics/implementation similar to this (there are surely cl-xxx
filter-functions that can do this as one-liner):

#+begin_src emacs-lisp
  (delq nil
        (mapcar
         (lambda (--cons)
           (unless (or (member (car --cons)
                               org-default-properties)
                       (member (car --cons)
                               org-special-properties))
             --cons))
         (org-entry-properties)))
#+end_src

What do you think?

-- 
cheers,
Thorsten