On Oct 16, 2009, at 3:44 PM, I. Savant wrote:
I want to figure out a way to build a search predicate that will
allow me to search a Text View and I think this is likely to be the
only way.
Seems a bit odd. Could you elaborate?
Let *me* elaborate on *that*. :-) You normally use predicates to
filter objects in the model layer of your application. Note
"normally". If you're trying to provide a way to search within a text
view, this is a very strange way of going about it:
1 - NSTextView already takes advantage of the Find field.
2 - Searching for a substring inside a string with a predicate
searches the *whole* string as one ... this is only really useful if
your text view's content is made up of a bunch of smaller units, but
then again ... see 1 above.
3 - The predicate would be used to filter an array of NSTextStorages,
not one NSTextStorage, returning those which contain your search string.
4 - Related to 3: if you're searching text storages because you treat
them as individual subunits in your model, it would likely make more
sense to apply this filter to the model layer.
--
I.S.
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