Parse a primitive from untrusted text (the ?linePrimitive= URL parameter). Returns null for anything unrecognised so the caller can decide between falling back and warning — an unknown value must never silently select a primitive.
?linePrimitive=
null
Parse a primitive from untrusted text (the
?linePrimitive=URL parameter). Returnsnullfor anything unrecognised so the caller can decide between falling back and warning — an unknown value must never silently select a primitive.