[Tagging] Multiple values with semicolons (was: Voting - Blood donation 2)
marc.gemis at gmail.com
Mon Jul 20 08:55:58 UTC 2015
On Mon, Jul 20, 2015 at 10:32 AM, Ruben Maes <ruben.maes96 at gmail.com> wrote:
> He proposes to use a semicolon-separated list, e.g.
> We both know this is controversial, but why in fact? It is supposed
> to be hard to interpret for data consumers, but can't they just as
> easily make a list with booleans of all the values that are present in
> the tag?
My take on this one
1) For me the major problem is when you try to further specify the
semi-colon separated values.
E.g amenity=pub;hotel, how do you specify different opening hours for the
You might use it for values that do not have to be specified further, e.g.
cuisine or your compensation tag, but
1) it's easier to do a search for all places that accept vouchers when you
have a dedicated key. With semi colon approach you need to be able to
handle "voucher", "xx;voucher", "voucher;xx", "xx;voucher;yy"
You might need to use regular expressions when you need to query for places
that give vouchers but do not do payments.
2) in some cases the semi-colon might be part of the value
You might want to search the archives of the tagging mailing list for all
kinds of arguments. I think this was discussed earlier this year as well.
O, yes, I remember a very long discussion with Xxxmzz (or so) on pro- and
cons for regular expressions.
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