UTF8Delete procedure
Deletes characters (or codepoints) in a UTF-8-encoded string.
Declaration
procedure UTF8Delete(var s: Utf8String; StartCharIndex: PtrInt;
CharCount: PtrInt)Description
UTF8Delete is an overloaded procedure used to delete characters
(or codepoints) in a UTF-8-encoded string starting at a given position.
StartCharIndex contains the character position in s where values
will be removed.
StartCharIndex refers to codepoints and not
individual byte or character values. A single character can be expressed as
1-4 byte values in UTF-8 encoding.
CharCount indicates the number
of codepoints to remove in the function.
The value in s is updated directly in the function.
An overloaded variant of the procedure is provided for platforms where the Win1252 code page is used. On these platforms, raw byte values values in s are converted to the UTF-8 code page prior to performing the delete operation.
An experiment, built from Lazarus main 2dfa93c66e of 10-22-2026. Not the official Lazarus documentation.