On Sat, Feb 6, 2010 at 6:17 PM, Gideon King <gid...@novamind.com> wrote:
> I found the root cause of my problem - I was trying to call setSelectedRange 
> and setTypingAttributes on my text view in the textStorage processEditing 
> method, and the system didn't like that. I have altered it to use 
> perform...afterDelay: and it works fine now.

This is not the correct way to fix this problem.

You should not have overridden -processEditing. You should instead
have implemented -textStorageWillProcessEditing: in your text
storage's delegate, which the documentation describes as the
appropriate place to "make changes to the text storage object’s
characters or attributes to enforce whatever constraints it
establishes."

--Kyle Sluder
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