[Overview][Resource strings][Constants][Types][Procedures and functions][Index] Reference for unit 'unicodedata' (#rtl)

UnicodeIsHighSurrogate

Check if a UTF16 character is the high character in a surrogate pair.

Declaration

Source position: unicodedata.pas line 480

function UnicodeIsHighSurrogate(

  const AValue: UnicodeChar

):Boolean;

Arguments

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

FromUCS4

  

Convert UCS4 to UNicodeChar

ToUCS4

  

Encode unicode UTF16 surrogate pair to UCS4 character

UnicodeIsHighSurrogate

  

Check if a UTF16 character is the high character in a surrogate pair.

UnicodeIsLowSurrogate

  

Check if a UTF16 character is the low character in a surrogate pair.

UnicodeIsSurrogatePair

  

Check if a pair of UTF16 encoded characters is a valid surrogate pair.


Documentation generated on: Jun 23 2021