Inconsitency

[Sönke Ludwig]

Am 13.10.2013 15:50, schrieb Dmitry Olshansky:
> 13-Oct-2013 17:25, nickles пишет:
>> Ok, if my understandig is wrong, how do YOU measure the length of a
>> string?
>> Do you always use count(), or is there an alternative?
>>
>>
> It's all there:
> http://www.unicode.org/glossary/
> http://www.unicode.org/versions/Unicode6.3.0/
>
> I measure string length in code units (as defined in the above
> standard). This bears no easy relation to the number of visible
> characters but I don't mind it.
>
> Measuring number of visible characters isn't trivial but can be done by
> counting number of graphemes. For simple alphabets counting code points
> will do the trick as well (what count does).
>

But you have to take care to normalize the string WRT diacritics if the 
estimate is supposed to work. OS X for example (if I remember right) 
always uses explicit combining characters, while Windows uses 
precomposed characters if possible.