Что вы думаете об использовании RX? Вы также можете иметь один MVP, содержащий другой, может быть
wdiff
will give you a word-by-word diff instead of line-by-line. I'm not aware of any sentence-by-sentence diff programs.
Preprocess the files before diffing them. Write a script to write one sentence per line and any line by line diff program will work.
I have done this on a C token level for diffing C code in order to make absolutely sure my CVS merge was correct.