Daniël Mantione wrote:
>
> Op Mon, 7 May 2007, schreef Christos Chryssochoidis:
>
>> Hi,
>>
>> Are there any rtl functions to compute the length (in characters) of a
>> widestring and to iterate over its characters?
>
> If you treat it as UCS-2: length(widestring_variable)
>
>> In my system (Mac OS X/fpc 2.1.3), a widestring is implemented as a
UTF-8
>> encoded string, as I found out.
>
> Not possible, a widestring is UCS-2/UTF-16.
I defined a widestring with 7 characters (code points), and the
length() function returned the value 15. Of the 7 code points of that
widestring only one of them was greater than $07FF (the maximum code
point which can be encoded in 2 bytes under UTF-8). When I changed that
character with another one with code not greater than $07FF, length()
returned value 14... I also printed the byte values of one of the
widestring's widechars, and the values printed indicated UTF-8 encoding.
Thanks,
Christos
>
> Daniël
>
>
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