[TxMt] Combined diff and source code highlighting

[Jacob Carlborg]

Would it be possible to some how combine the diff highlighting with the 
highlighting of a source code? I know that it's possible to insert other 
grammars in a grammar but I was thinking of a general solution that 
doesn't require changing every existing grammar to add diff support.

It would be really cool if it would be possible to recognize each file 
(if multiple files in a diff) and highlight it according to the file 
extension.

-- 
/Jacob Carlborg