Function

CFURLCopyQueryString(_:_:)

Returns the query string of a given URL.

Declaration

func CFURLCopyQueryString(_ anURL: CFURL!, _ charactersToLeaveEscaped: CFString!) -> CFString!

Parameters

anURL

The CFURL object to examine.

charactersToLeaveEscaped

Characters whose percent escape sequences, such as %20 for a space character, you want to leave intact. Pass NULL to specify that no percent escapes be replaced, or the empty string (CFSTR("")) to specify that all be replaced.

Return Value

The query string, or NULL if no parameter string exists. Ownership follows the create rule. See The Create Rule.

Discussion

This function removes all percent escape sequences except those for characters specified in charactersToLeaveEscaped.

See Also

Accessing the Parts of a URL

func CFURLCanBeDecomposed(CFURL!) -> Bool

Determines if the given URL conforms to RFC 1808 and therefore can be decomposed.

func CFURLCopyFragment(CFURL!, CFString!) -> CFString!

Returns the fragment from a given URL.

func CFURLCopyHostName(CFURL!) -> CFString!

Returns the host name of a given URL.

func CFURLCopyLastPathComponent(CFURL!) -> CFString!

Returns the last path component of a given URL.

func CFURLCopyNetLocation(CFURL!) -> CFString!

Returns the net location portion of a given URL.

func CFURLCopyParameterString(CFURL!, CFString!) -> CFString!

Returns the parameter string from a given URL.

Deprecated
func CFURLCopyPassword(CFURL!) -> CFString!

Returns the password of a given URL.

func CFURLCopyPath(CFURL!) -> CFString!

Returns the path portion of a given URL.

func CFURLCopyPathExtension(CFURL!) -> CFString!

Returns the path extension of a given URL.

func CFURLCopyResourceSpecifier(CFURL!) -> CFString!

Returns any additional resource specifiers after the path.

func CFURLCopyScheme(CFURL!) -> CFString!

Returns the scheme portion of a given URL.

func CFURLCopyUserName(CFURL!) -> CFString!

Returns the user name from a given URL.

func CFURLGetPortNumber(CFURL!) -> Int32

Returns the port number from a given URL.

func CFURLHasDirectoryPath(CFURL!) -> Bool

Determines if a given URL's path represents a directory.