On 03/04/2013 08:06 PM, Andrew Shadura wrote:
Hello,
On Mon, 4 Mar 2013 11:04:48 +0100
Martin Vonwald <[email protected]> wrote:
But now I'm curious how MapCSS will further develop. If each MapCSS
renderer implements extensions on its own I'm afraid it will lead to
JOSM-MapCSS, Halcyon-MapCSS, Potlatch-MapCSS, ... and we will end up
with a lot of incompatible style sheets. This reminds me of the
internet just a few years ago and (I think I can speak for the
majority here) we definitively don't want to go back there.
Well, I haven't been involved in MapCSS development lately, but took
some part in the beginning of 0.2 and helped to develop it, and one of
its parsers, now unused unfortunately.
I'm not particularly happy with what's happening with MapCSS. It's
understandable when certain software doesn't implement some features,
as sometimes there may be technical or other obstacles for that. When
features are implemented a very different way, or implemented without
priop discussions, this leads to chaos. And that's what we have now.
In my opinion, JOSM implements MapCSS in a very bad way, and its
extensions are extremly non-systematic and against the spirit of
CSS-like languages at all and MapCSS in particular. Function naming
is very strange and is not easily readable.
I'm a bit surprised by your strong disapproval. Extensions have been
implemented because there was demand for these features. If you have
ideas to achieve the same with a better syntax, then please let me know.
You can also suggest better function names, it shouldn't be a problem to
add an alias and deprecate the old name.
In my opinion, MapCSS support in JOSM has been a great success so far.
We have about 40 MapCSS styles contributed and maintained by users. Some
of these styles are quite comprehensive and extremely useful (like the
one by Martin).
I'd be happy to join the discussion and work towards a unification of
the language. However there seems to be little direct and practical
benefit from this. If there was another MapCSS renderer that was
interested in using the JOSM tailored styles, then some discussion would
be starting. But for one reason or another, there isn't much exchange
and sharing of styles at the moment. (Well, JOSM ships the main PL2
style. :) )
Paul
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