Unit 'unicodedata' Package
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UnicodeIsSurrogatePair

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

Declaration

Source position: unicodedata.pas line 489

function UnicodeIsSurrogatePair(

  const AHighSurrogate: UnicodeChar;

  const ALowSurrogate: UnicodeChar

):Boolean;

Arguments

AHighSurrogate

  

High character in the surrogate pair.

ALowSurrogate

  

Low character in the surrogate pair.

Function result

True if AHighSurrogate,ALowSurrogate are a valid surrogate pair.

Description

UnicodeIsSurrogatePair checks whether AHighSurrogate,ALowSurrogate constitute a valid surrogate pair, and returns True if this is the case. It does this by checking whether the values are within the bounds for high and low 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.


Documentation generated on: Oct 27 2024