[sc-dev] Syntax Highlighting

[Ryan Brown <ryan@xxxxxxxxx>]

Attached is a simple patch that improves syntax highlighting  
performance. Opening a large .sc file (6500 lines) previously took  
about 10 seconds of beach balling, with the patch it opens instantly.  
It works by changing the text color via textStorage (rather than the  
text view) and wrapping the entire colorization loop in beginEditing  
and endEditing calls. Why this improves performance is documented here:
http://developer.apple.com/documentation/Cocoa/Conceptual/TextEditing/ 
Tasks/BatchEditing.html

I also cleaned up the code a bit.

Ryan

Attachment: syntaxColorize.M.patch
Description: Binary data