473
473
equation = relation >> *( ( L'=' >> relation)
474
474
[compose_filter<FeatureT,mapnik::equals<value> >(self.filters,self.exprs)]
476
478
[compose_filter<FeatureT,not_equals<value> >(self.filters,self.exprs)]);
478
480
cond_expr = equation | (expression)[compose_boolean_filter<FeatureT>(self.filters,self.exprs)];