> However, I'm not certain where to make the incision to inject this into the templates. Its going to add a div around the tables used for the old/new sources, and adds a bit of JS.
Have a look at viewdeltas.html.tmpl, which goes through all the deltas
and creates the tables.
> Question: will the delta view always pad the shorter file to the same # of lines as the longer ? This hack seems to handle different file sizes OK, but to be usable both panes have to have vertical scrollbars; whereas if both are the same length, then the vertical scroll can be hidden on the left (or the right) pane.
They should be the same height - blank lines are inserted.