Hi,
I am working on a large-ish CSS style, that gave me the opportunity to
observe a few annoying bits in the syntax.
I set out to fix those, in particular:
- Scale denominator numbers can be long and that makes them hard to
read. Who can say, without counting the zeros, if 10000000 is 1 billion, 10
millions, 1 million? I am going to allow a shortcut syntax with k and m
specifiers, e.g 10m, that should make common scale denominators quick to
type and read (I've noticed ysld allows for scientific notation but
honestly.. do I really want to type and read "1e10", how many will
instantly realize it's the millions?)
- Scale denominators are not scales, so I'll add a more compact and more
correct @sd variable ("scale denominator") to use in scale dependency
rules, e.g. [@sd < 10k], while preserving @scale for backwards compatibility
- Remove the -gt- prefix from vendor options. In SLD there is a
reference spec and it makes sense to have vendor options, CSS is its own
languages with no base reference, there is no need to mark anything as
vendor, let alone specifically point to geotools in the prefix. While the
old syntax will still be supported for backwards compatibility. So, for
example, it will be "label-priority" instead of "-gt-label-priority".
- Easy support for enviroment variables, instead of having to call onto
env('foo') or env('foo', 1234) in CSS one will be able to just do @env or
@env(1234)
Once that is done, I'll probably propose the module for graduation in
supported land (for 18.0)
Considerations, objections?
Cheers
Andrea
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