Detecting grids of drug names

[Julian Field]

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I have produced a rule which detects grids of letters. They are using a 
table trick to rotate the words by 90 degrees so the letters of the 
first column all come first, followed by all the letters of the second 
column and so on. This stops you detecting words with HTML junk in 
between the letters.

But I can now detect these grids:

rawbody  JKF_DRUG_GRID1 /(\>([[:alpha:]]\s){4}[[:alpha:]].*){4}\>/i
describe JKF_DRUG_GRID1 Grid of letters rotated to produce drug names
score    JKF_DRUG_GRID1 4.5

This detects grids of at least 4x4 characters, which is small enough to 
detect drug names.
The first "4" sets the minimum number of rows in the grid, the second 
"4" sets the minimum number of columns.

Quite succinct once you work out what you are looking for :-)
All improvements and comments are most welcome.

- -- 
Julian Field
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PGP footprint: EE81 D763 3DB0 0BFD E1DC 7222 11F6 5947 1415 B654


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