On Tue, Nov 8, 2011 at 10:41 AM, Sebastien Vauban <
[email protected]> wrote:
> Hi Rainer,
>
> Rainer M Krug wrote:
> >> The proposal is, when a property name ends in +, the value is appended
> >> to the corresponding property, rather than replacing it, so
> >>
> >> #+PROPERTY: var foo=1
> >> #+PROPERTY: var bar=2
> >>
> >> results in '(("var" . "bar=2"))
> >>
> >> #+PROPERTY: var foo=1
> >> #+PROPERTY: var+ , bar=2
> >>
> >> results in '(("var" . "foo=1, bar=2"))
> >>
> >> This way subtree properties could be used as well, e.g.,
> >>
> >> #+PROPERTY: var foo=1
> >>
> >> * subtree
> >> :PROPERTIES:
> >> :var+: bar=2
> >> :CUSTOM_ID: something
> >> :END:
> >
> > I like that suggestion - it is clear, easy to understand, gives other
> > advantages (you can "unset" variables in a subtree - which would be an
> > added bonus) and does not require any large changes in org files.
>
> How do you unset a var? By resetting the list with a new var (without
> `+'),
> and adding all the other valid vars? If so, not really unsetting... You
> simply void all vars, and create new definitions...
>
Exactly - with "unseting" var, I don't refer to unsetting a single
variable, but all variables.
But as we have the var+, what about a var- to unset a single variable?
>
> Best regards,
> Seb
>
> --
> Sebastien Vauban
>
>
>
--
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology,
UCT), Dipl. Phys. (Germany)
Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa
Tel : +33 - (0)9 53 10 27 44
Cell: +33 - (0)6 85 62 59 98
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email: [email protected]
Skype: RMkrug
