commit: More grammar tweaks.

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expand squiggles to cover clusters of NULL Links.
Implement failsafe to draw the whole sentence of it's defined as bad with
no NULL links.

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Implement "square squiggles for grammar.

These look like:

-|_|-|_|-|_

I'm still not happy with this. I think we can do better of highlighting
where and what type of grammar failure occurs by drawing diffent types of
squigles and colors of squiggles for each "island" of linked words when
grammar fails.

The user can then see what bits of the sentence are correct and where the
fragments don't link together.

I also need to investigate the error messages link-grammar provides.

So lots more room for investigation.

Overall I think link-grammar identifies least 95% of bad grammar cases.
(So at most 5% false negatives.) I think it's false positive rate (the
fraction of good grammar it marks as bad) is at least about 95%.

Cheers

Martin'
Received on Sat Feb 12 12:21:54 2005