On 2013-10-21 19:07, Eckhart Wörner wrote : > Hi André, > > Am Sonntag, 20. Oktober 2013, 19:19:35 schrieb André Pirard: >> No, that is completely wrong. 24/7 is *not* meant to be used as a building >> block. >> Where is that explained and is it correctly explained if readers understand >> it "completely wrong"? > The wiki states "If it is 24 hours 7 days a week [opening_hours] has a > specific value: 24/7. this way it can render a specific icon."
I had understood that 24/7 doesn't allow exceptions and I wrote my diagram accordingly. Someone said it can (in the quote that you removed), nobody denied that so I changed my diagram accordingly. And then I was told that *I am* completely wrong instead of that I was right. >> IMHO, the first thing in this discussion is to define what "off" means. > The first thing in this discussion is to *grasp* the meaning of "off", not > *define* it. "off" has been in use for quite some time already. > http://wiki.openstreetmap.org/wiki/Proposed_features/Time_domains explains > quite well how the overall opening_hours syntax works. A precise definition is always needed, especially when different people are "grasping" differently, especially to the point of saying that "off" is optional and 24/7 a building block. You may notice that, precisely, "off" overrides what is preceding it and not what is following it. The definitions need to be where they're needed, not in other documents or in people's head. You're absolutely right that "Time domain" explanation is quite well. The only problem is that it should be at the beginning of Key_opening_hours but that the latter does not even link to it. I have added a sentence to draw the reader's attention on two key documents I was lucky to find before he tackles decoding this one. Fuzzy rules are unfortunately a spread disease of OSM, especially traffic rules tags sending cars where they shouldn't go or pedestrians/bicycles on a needless 3 km detour. I'm having a hard, disappointing time with that. Computers using tags do not "grasp". They follow well defined rules. I hope that the JOSM/Plugins/OpeningHoursEditor <http://wiki.openstreetmap.org/wiki/JOSM/Plugins/OpeningHoursEditor> bug will be corrected and that it will be improved because it's what taggers jump on instead of reading (nice making a button to switch between adding and subtracting mode). I hope that my fast-to-read diagram will be appreciated. I have to move on to those other concerns now. Cheers, André.
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