On Nov 9, 2009, at 9:37 AM, Kyle Sluder wrote:
On Mon, Nov 9, 2009 at 9:28 AM, Douglas Davidson
<ddavi...@apple.com> wrote:
Yes, that's correct. Within a given text view, the character
indexes are
the same between the text storage and its underlying string, and
these are
the character indexes used by the layout manager and the text view.
The documentation seems to be in conflict on this point.
-[NSAttributedString string] says the following:
This method doesn’t strip out attachment characters; use NSText's
string method to extract just the linguistically significant
characters.
That doesn't sound right.
For performance reasons, this method returns the current backing
store of the attributed string object. If you want to maintain a
snapshot of this as you manipulate the returned string, you should
make a copy of the appropriate substring.
But -[NSText string] also says this:
For performance reasons, this method returns the current backing
store of the text object. If you want to maintain a snapshot of
this as you manipulate the text storage, you should make a copy of
the appropriate substring.
This is correct.
Which implies that -[NSText string] is implemented to just return
[[self textStorage] string], which would defy -[NSAttributedString
string]'s documentation. I think NSAttributedString is in error here;
will file a doc bug soon.
Please do.
Douglas Davidson_______________________________________________
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