[gnugo-devel] anchor_in_goal for owl_attackpats.db

[Trevor Morris]

http://www.public32.com/games/go/trevor_3_11.1

- Added explicit anchor for owl_attackpats.db patterns


I duplicated a few patterns w/ different anchors.

This explodes the size of the DFA database (about 4x !), but only
if the "-m" parameter is omitted.  So, this patch doesn't actually
cause any changes, since the -m option chooses its own anchor.

The performance increase is extremely small, but after removing
unnecessary checks in check_pattern_light, it should be quite
a bit better.  When making the obvious changes to the owl code
& removing the "-m", these changes cause only to "FAILS" in
owl.tst.

Anyway, I'm putting this in, since it's very tedious to change all
the Xs to Ys, and it will probably conflict with just about any other
pattern changes.

-Trevor