Check if character is letter in Delphi (Unicode)

Question

Are there pre-defined character sets in Delphi to check if a character is a letter?

In Cocoa I use something like

if ([[NSCharacterSet whitespaceCharacterSet] characterIsMember:character])

I know I can do in Delphi

if c in ['A'..'Z'] then

but does this cover characters with diacritics like Á, À, Ú, É, etc., too?

What would be the most efficient way to check this in Delphi? I need to check if a string is fully composed of letters.

Answer 1

Try using the Character.TCharacter.IsLetter or Character.IsLetter functions