On 07/10/2003 02:35, Jill Ramonsky wrote:


Knowing the number of characters won't help you one iota. What you need to know here is the number of default grapheme clusters.
I still have yet to hear a useful purpose for counting the number of /characters/.


Jill

Suppose I have a UTF-8 string and want to know how many default grapheme clusters it contains. How do I do so? Well, I step through the string character by character, combining successive characters into grapheme clusters. To do this without having to decode the UTF-8 myself, I need to be able to get at the string character by character, and very likely use a loop based on the number of characters in the string, e.g. the following Basic (horrid language but good for making my point here):

For i% = 1 to Len(utf8string$)
   c$ = Mid(utf8string$, i%, 1)
   Process c$
Next i%

Such a loop would be more efficient in UTF-32 of course, but this is still a real need for working with character counts.

--
Peter Kirk
[EMAIL PROTECTED] (personal)
[EMAIL PROTECTED] (work)
http://www.qaya.org/





Reply via email to