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Re: String.Mid() and Unicode [message #28667 is a reply to message #28665]

Fri, 10 September 2010 11:23

dolik.rce
Messages: 1792
Registered: August 2008
Location: Czech Republic

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jeremy_c wrote on Fri, 10 September 2010 10:36

I know a given string is at position 10 (example) and is 3 characters long. I don't know if that's 3 Unicode characters or 3 ASCII characters.

It seems that String.Mid(pos, len) is returning 3 bytes of data, not 3 characters, is that correct? If so, how can I retrieve 3 characters from a string at position XYZ?

Jeremy

Hi Jeremy,
I am by far not an expert on the topic, but I believe you need WString for this. String really works with 8bit characters only, while WString encodes the characters to 16 bits. Little example:

	String s="aβ¢d�f";
	WString w(s);
	for(int i=0;i<s.GetCount();i++){
		Cout()<<IntStr(s[i])<<" ";
	}
	Cout()<<"\n";
	for(int i=0;i<w.GetCount();i++){
		Cout()<<IntStr(w[i])<<" ";
	}

(Well, the example was more to assure myself that I'am not talking nonsense Smile

)

Honza

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