[OSM-dev] Opening hours

[John Smith]

On 7 May 2010 03:00, Thomas Meller <thomas.meller at gmx.net> wrote:
> I have spent some thought on a simple linked list like in this template:
>
> tag:next_tag=expression
> next_tag:third_tag=expression
> third_tag:following_tag=expression
> following_tag=[validity|AND|OR|XOR] *which may be followed by even more tags

Is there a good reason to make things increasingly complex?

Things are already complex enough at present, to the point people
don't often tag this kind of information...

> validity={restriction enabled|disabled} *always last in chain

I've already applied this sort of thinking to school zones, during
certain times of the day the speed limit will be lowered.

http://wiki.openstreetmap.org/wiki/Proposed_features/Tag:restriction%3Dschool_zone

However I can't think of any examples when the restriction happens the
majority of the time so I'm not sure what the advantage of making
things overly complicated in this case.