On Fri, Feb 08, 2013 at 09:08:08PM +0000, Ataro A wrote:
I've erroneusly used the substitution $(....) in a rule in the style file lines as follow: highway=* & route=* {set route_ref='$(route_ref), ${ref}' | '${ref}'} and mkgmap don't return with some error or warning.
I implemented this feature some years ago, so that you could append attributes from multiple relations to the relation members. For example, append all ${ref} of bus route relations to the ${route_ref} of the bus stop POIs.
This substitution $(....), as state the manual, are reserved for the use in a apply rule in the relations file and are not usable in other style files. I've found a mkgmap bug or what other?
It could be fixed in the documentation, by saying that $(name) is equivalent to ${name} outside the apply action. In uk.me.parabola.mkgmap.osmstyle.actions.ValueItem, there ${} vs $() chooses whether we are referring to the relation or to the relation member. For example, (type=boundary | type=multipolygon) & boundary=administrative & name=* { apply { set mkgmap:boundary_name='$(mkgmap:boundary_name)/${name}' | '${name}'; } } in the default style will set the attribute mkgmap:boundary_name in the relation member. The $(mkgmap:boundary_name) refers to attribute in the relation member, while ${name} refers to the attribute in the relation itself. Best regards, Marko