As far as changing diff's strategy is concerned, I'm stuck. The only
promising option for the diff that came with my Windows installation of
vim is
-H Assume large files and many scattered small changes
But I still get
000 0 gljjpqumLP
001 0 bLUiouhx8L
002 0 k6TKP7yHv1
003 0 7eDtRBOi6U
004 0 YLulNJm2dr
005 0 sCSDdCyx2E
when I would like to get
000 0 gljjpqumLP
001 0 bLUiouhx8L
002 0 k6TKP7yHv1
003 0 7eDtRBOi6U
004 0 YLulNJm2dr
005 0 sCSDdCyx2E
when comparing vdt0 to vdt1 (which doubles each timestamp)
Maybe do a bit more preprocessing of your files before sending them to
diff, making the first line with any given timestamp unique so diff
'synchronises' on those. A little loop like this after your :s command
might do the trick (if it isn't too slow).
let lltxt = ""
let lnum = 1
while lnum <= line("$")
let ltxt = getline(lnum)
if ltxt != lltxt
call setline(lnum,ltxt."*")
let lltxt = ltxt
endif
let lnum = lnum + 1
endwhile
I guess it can be used to try out the concept anyway, and if it works
but needs a speed boost, someone will have some ideas how to make it
better.
Ben.
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