I have a file that is 900,000 lines line (actual, a couple over). Sublime text 2 cuts the file off at about 450,000 lines.
just spent 30 minutes trying to figure out why i was only downloading 1/2 the file. Opened it in Text Wrangler and it is complete, so i know its sublime text 2 that is cutting it off :-/
It's an XML document, if that helps.