Compare two sequent lines in one file

[filebat Mark]

Hi all

Can we compare two sequent lines in one file?  A sample file can be found at the bottom.

With my friend's suggestion, I have managed to do this by calling an internal function(ediff-regions-internal) of ediff.el.
However, leveraging internal interface is quite dangerous.
Besides, this is still some more effort to make it work with the way of ediff-regions-internal.
I may even have to change the code of ediff.el!

I am referring to my super heroes in the mail list. Can anyone give me a hint for a better way?

,-----------
| ========= Difference =========
|
| MDLS_List=dailybuild1-171-112-r1s1-002,dailybuild1-171-112-r1s1-001,dailybuild1-171-112-r2s1-002,dailybuild1-171-112-r2s1-001
| MDLS_List=dailybuild1-171-112-r1s1-001,dailybuild1-171-112-r1s1-003,dailybuild1-171-112-r2s1-002,dailybuild1-171-112-r2s1-001
|
| ========= Difference =========
|
| SS_DiskList=/dev/sdd1,/dev/sdd2,/dev/sde1,/dev/sde1
| SS_DiskList=/dev/sdc1,/dev/sdd1,/dev/sde1,/dev/sdf1
|
| ========= Difference =========
|
| SS_NumDisks=2
| SS_NumDisks=4
`-----------


-- 
Thanks & Regards

Denny Zhang