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The program wdiff is a front end to diff for comparing
files on a word per word basis. A word is anything between whitespace.
This is useful for comparing two texts in which a few words have been
changed and for which paragraphs have been refilled. It works by
creating two temporary files, one word per line, and then executes
diff on these files. It collects the diff output and uses
it to produce a nicer display of word differences between the original
files.
Ideally, wdiff should avoid calling diff and do all the
work internally, allowing it to be faster and more polished. However, I
loathe replicating the diff algorithm and development effort,
instead of improving diff itself. It would be more sensible to
integrate wdiff into diff than the other way around. I
did it this way only because I had a sudden and urgent need for it, and
it would have taken too much time to integrate it correctly into GNU
diff. Your advice or opinions about this are welcome.
wdiff was written by Franc,ois Pinard. Please report
bugs to `bug-gnu-utils@prep.ai.mit.edu'. Include the version
number, which you can find by running `wdiff --version'.
Include in your message sufficient input to reproduce the problem
and also, the output you expected.
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