NSTextStorage Problems - re-post
NSTextStorage Problems - re-post
- Subject: NSTextStorage Problems - re-post
- From: "Josh Ferguson" <email@hidden>
- Date: Tue, 25 Jun 2002 11:20:38 -0500
- Thread-topic: NSTextStorage Problems - re-post
I posted this question last week, but didn't get a response, so I'm hoping somebody who knows a lot about the text objects system will notice this and have some pointers.
I'm creating a text editor that supports syntax coloring. To do this, I've sub-classed NSTextStorage to store additional attributes. When I open a blank document everything seems fine. When I type the first character, my textView calls the various functions (-fixAttributesInRange, -replaceCharactersInRange:withString...), but the problem I have is in -attributesAtIndex:effectiveRange:. This method gets called 4 times, with the first three times executing succesfully (it's getting the attribute at index 0). The fourth time, it tries to get the attribute for index 39, and since there is no index 39, it screws the whole system up. Just for kicks, I put a catch in to just return if the index is greater than the length of the string, and it just repeatedly calls attributesAtIndex, and effectively freezes the application. Anyone have any ideas what could be going wrong here???
Thanks!
Josh
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