Estimated hours taken: 30
Modified files
--------------
samples/diff/README:
Info about this new version. Put the existing READMEs in
reverse order, so that they'll be in the most sensible order
for someone reading top-down.
samples/diff/Mmakefile:
Supply more detail about which bit of this program GCC 2.7.2
under Digital Unix 3.2 doesn't compile properly.
samples/diff/diff.m:
Slight reorganisation. Accept options, remove some high
coupling betweem diff__do_diff and lcss.m.
samples/diff/file.m:
Add support for attaching a filename to a file.
samples/diff/lcss.m:
Add more documentation, one slight performance improvement.
lcss__to_diff now works on the reversed LCSS, to avoid going
to the trouble of reversing it.
New files
---------
samples/diff/TODO:
Meaning should be obvious.
samples/diff/diff_out.m:
Replacement for diffs.m (which was never a very good name).
Now contains code to display a diff in lots more output
styles than previously supported.
samples/diff/difftype.m:
Replacement for lcsstype.m. Contains the type of a diff (but
not of an lcss, which is now local to lcss.m, hence the
renaming).
samples/diff/filter.m:
Contains code to filter a diff before being displayed. This
is only required if the user specified that they didn't want
to see part of the diff (e.g. with --ignore-blank-lines).
samples/diff/globals.m:
samples/diff/options.m:
Support for option handling.
Removed files
-------------
samples/diff/diffs.m:
Functionality moved to diff_out.m.
samples/diff/lcsstype.m:
Functionality moved to difftype.m.
