UnicodeIsHighSurrogate function
Check if a UTF16 character is the high character in a surrogate pair.
Declaration
function UnicodeIsHighSurrogate(const AValue: UnicodeChar): BooleanArguments
AValue | UTF16 character to check. |
Function result
True if
AValue forms the high character of a surrogate pair.
Description
UnicodeIsHighSurrogate checks whether
AValue is a valid high character
of a surrogate pair, and returns
True if this is the case.
It does this by checking whether the values are within the bounds for high characters in surrogate pairs.See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.