[fpc-devel] Unicode resource strings

Hans-Peter Diettrich DrDiettrich1 at aol.com
Mon Aug 20 19:42:44 CEST 2012

Mark Morgan Lloyd schrieb:

> I've got a couple of terminal emulators using WideChar and WideString 
> for internal manipulation, what /should/ I be using? and where does it 
> leave things like Sorokin's regex unit, which similarly use WideChar and 
> WideString?

Depends on which libraries you use. AFAIK SBCS RegEx works for both Ansi 
and UTF-8 strings, so that an UTF-16 library is optional. For the 
terminal emulators I'd think that it's sufficient to introduce an 
internal string type that allows to switch between UTF-8 and UTF-16, so 
that the (different?) behaviour can be tested. When there exist 
differences, this indicates that the WideString emulators *only* handle 
Unicode BMP characters, not surrogate pairs, and you have to decide 
whether this restriction is okay for you.


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