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Correspondence between NSPredicate types and Mapbox Style Specification filter forms
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nspredicate-filter.md
Filter form NSPredicateOperatorType/NSCompoundPredicateType
has NSContainsPredicateOperatorType
!has NSNotPredicateType(NSContainsPredicateOperatorType)
== NSEqualToPredicateOperatorType
!= NSNotEqualToPredicateOperatorType
> NSGreaterThanPredicateOperatorType
>= NSGreaterThanOrEqualToPredicateOperatorType
< NSLessThanPredicateOperatorType
<= NSLessThanOrEqualToPredicateOperatorType
in NSInPredicateOperatorType
!in NSNotPredicateType(NSInPredicateOperatorType)
all NSAndPredicateType
any NSOrPredicateType
none NSNotPredicateType(NSOrPredicateType)

Not supported directly but could be translated:

  • NSBetweenPredicateOperatorType
  • NSNotPredicateType

Unsupported, but that’s OK because a predicate-supporting backend isn’t required to support everything:

  • NSMatchesPredicateOperatorType
  • NSLikePredicateOperatorType
  • NSBeginsWithPredicateOperatorType
  • NSEndsWithPredicateOperatorType
  • NSCustomSelectorPredicateOperatorType

Key paths in NSPredicate format strings can’t contain special characters like - or $, but you can use the %K placeholder: NSPredicate(format: "admin_level > 3 AND %K == 'Polygon'", "$type").

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