Re: Searching for "whole word" in NSString

FROM : Douglas Davidson
DATE : Tue Jan 29 21:05:09 2008

On Jan 29, 2008, at 11:38 AM, John Stiles wrote:

> Oh well, off to Radar to file a bug on the Find panel, and I'll 
> figure out some sort of solution. I can probably use NSCharacterSet 
> or something and look at the characters on either side of the found 
> text. I was hoping to avoid that, but it looks like I can't.


You should still be able to build on doubleClickAtIndex: to determine 
word boundaries at either end of your search string and in the found 
text, and then implement whatever boundary-matching semantics you 
choose on top of that, without having to use NSCharacterSet or 
anything of the sort.  Word boundary detection is complicated enough 
(cf. UAX #29, "Text Boundaries", at http://www.unicode.org/reports/tr29/)
  that you really don't want to have to implement it yourself.

Douglas Davidson