Hmm, I think the semicolon separated tags are necessarily ordered. Jochen has it a bit wrong in the blog with his example about coincident highways.
For example US 1-9 by NYC is tagged `ref=US 1;US 9`. It would be a mistake to treat that as equivalent with US 9-1, as it’s definitely not called that nor signed that way: http://www.openstreetmap.org/way/51509994 <http://www.openstreetmap.org/way/51509994> I’m sure there are other examples of this, where the ordering of coincident highway refs would look totally wrong if reversed. > On Jan 27, 2016, at 11:36 AM, Frederik Ramm <[email protected]> wrote: > > Hi, > > On 01/27/2016 04:09 PM, Colin Smale wrote: >> I have created a proposal page as a channel for constructive debate >> about the way forward. I hope you will all take a look and participate! > > One thing that I would like to see discussed is ordering. For example in > the semicolon word, is "shop=a;b" the same as "shop=b;a" or does the > former mean that it is an "a" with attached "b" and the latter mean that > it is a "b" with an attached "a"? > > If a;b is identical to b;a then having both is of course a major pain > and would shift a lot of preprocessing work on tools like taginfo. > > On semicolons, also see > https://blog.jochentopf.com/2013-09-23-semicolons-in-osm-tags.html > > Bye > Frederik > > > -- > Frederik Ramm ## eMail [email protected] ## N49°00'09" E008°23'33" > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging
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