CFURLCreateAbsoluteURLWithBytes(_:_:_:_:_:_:)

Creates a new CFURL object by resolving the relative portion of a URL, specified as bytes, against its given base URL.

Declaration

func CFURLCreateAbsoluteURLWithBytes(_ alloc: CFAllocator!, _ relativeURLBytes: UnsafePointer<UInt8>!, _ length: CFIndex, _ encoding: CFStringEncoding, _ baseURL: CFURL!, _ useCompatibilityMode: Bool) -> CFURL!

Parameters

alloc:
The allocator to use to allocate memory for the new CFURL object. Pass NULL or Kcfallocatordefault to use the current default allocator.
relativeURLBytes:
The character bytes that represent a relative URL to convert into a CFURL object.
length:
The number of bytes in relativeURLBytes.
encoding:
The string encoding of the relativeURLBytes string. This encoding is also used to interpret percent escape sequences.
baseURL:
The URL to which relativeURLBytes is relative.
useCompatibilityMode:
If true, the rules historically used on the web are used to resolve the string specified by the relativeURLBytes parameter against baseURL. These rules are generally listed in the RFC as optional or alternate interpretations. Otherwise, the strict rules from the RFC are used.

Return Value

A new CFURL object, or NULL if relativeURLBytes cannot be made absolute. Ownership follows the create rule. See The Create Rule.

Discussion

This function interprets the provided bytes using the specified string encoding to create the relative portion of the URL’s address.