Google search algorithm

[FlexibleLearning at aol.com]

Before I attempt to re-invent this particular wheel, has anyone  written a 
transcript search parser similar to Google  matching?

e.g.

put "LEAD +DOG -CAT" into tMatch
repeat with n=1 to num of cds
put (fld "Item" of cd n &&  fld "description" of cd n && fld "code" of cd n) 
into tStr
if  googleMatch(tMatch,tStr) then
...&c...
end  if
end repeat
 
??
 
/H