Am 06.03.2013 10:06, schrieb Tom Davie:
On 6 Mar 2013, at 08:49, Martin Vonwald <[email protected]> wrote:
Here we have a problem. Lets look at my situation: I'm writing a style
for JOSM. Actually it is my second style after some playing around
with another minimalistic one, so I don't have much idea of the
situation. I encounter some problems while implementing and so I ask
on the josm-dev if something was possible or not. Shortly after that
some new functions are implemented in JOSM.

So who's the "bad guy" now? Is it me, because I shouldn't ask on
josm-dev but on this mailing list? I had no clue about this mailing
list. Is it the josm developer, because he implemented something
without discussing it on this mailing list? He just provided some
valuable features.

And while we try to figure out who's to "blame" we have a short look
at the number of participants on this discussion. It's me and you.
Maybe that's the real problem - lack of interest. A short look at the
history of http://wiki.openstreetmap.org/wiki/MapCSS/0.2 and its talk
page seems to confirm this.
Hopefully that should indicate that I have been involved in the discussion too. 
 Personally, I'm of the opinion that MapCSS is in *very* early stages of 
development, and we're still discovering all the ways in which current MapCSS 
can't style things we want to style.  Because of that, I think it's entirely 
reasonable for individual implementers to experiment with ways of supporting 
styling these features.
Probably here you/we (I prefer you here as I'm following the mapcss mailinglist and am interested in the topic, but not implementing anything like that currently) should learn from the CSS folks here; not in the way how mapcss should work and to do the same design decisions, but in the way how css evolves currently.

Every few weeks or months browser vendors create new css features and implement these in their browsers, but usually they do this prefixed by a vendor-specific prefix at first: -moz-... -webkit-...-properties of CSS come to mind.

I fear, this model of development is not possible for the selector stuff, but for the rendering rules and function names we/you should probably adapt it.

regards
Peter

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