Hello together!
Small feature announcement this time, but some might like it nevertheless:
FPC now supports unicode character constants that are outside of the
Basic Multilingual Plane (BMP), thus all with a value > $FFFF, but <
$10FFFF (the highest possible Unicode code point). As these are encoded
as surrogate pairs in UTF-16 they aren't a single UnicodeChar, but
instead they are always a UnicodeString constant.
All four bases that FPC supports for specifying character constants are
covered: binary (#%…), octal (#&…), decimal (#…) and hexadecimal (#$…).
This is also Delphi compatible.
Example (based on the code points provided in here:
https://en.wikipedia.org/wiki/UTF-16#Examples ):
=== code begin ===
program tuchar;
procedure DumpStr(const aStr: UnicodeString);
var
u: UnicodeChar;
begin
for u in aStr do
Write(HexStr(Ord(u), 4), ' ');
Writeln;
end;
var
s: UnicodeString;
begin
s := #$10437;
DumpStr(s);
s := #$24b62;
DumpStr(s);
end.
=== code end ===
This will result in the following output:
=== output begin ===
D801 DC37
D852 DF62
=== output end ===
Regards,
Sven
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