Sebastian Hohmann wrote: > http://wiki.openstreetmap.org/index.php/Proposed_features/Properties_for_Tags
Possibly a little overcomplex; it sounds like you're trying to introduce some form of metatagging - tags about other tags - when limited metatagging already exists, of a sort (source:name=*, for example). Stylistically, could existing colon "syntax" be used for what you're doing here? I've jotted down some stuff about forms I've seen elsewhere at <URL: http://wiki.openstreetmap.org/wiki/Any_tags_you_like#Syntactic_ conventions_for_new_tags >, see if you agree. It's admittedly not much of a formally defined syntax; could it do with being formalised? There are some corner cases it would be Quite Nice to address with a generative / metatag scheme: my own bugbears are * hour_on and hour_off for specific modes of transport * left-side and right-side for (UK:) pavements (US:) sidewalks and bicycle paths. The .only. and .except. stuff sounds like you're trying to mix predicates and logical inference into this all. Which might be nice, but this proposal will needs a better explanation of what you're trying to achieve here in order to sell it. I'd personally like parsing of tag keys to be simple, and not context-sensitive. Couldn't you do conditionality in a more future-proof way with S-exps or somesuch in the tag's value? (Kidding, kidding! I mean XML! D: ) I don't like the notion of the dots sometimes representing simple hierarchy and sometimes representing logic depending on what atoms are used. -- Andrew Chadwick _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
