"lineAtOffset"?

[Richard Gaskin]

Bob Sneidar wrote:
 > You know what would be really useful for this is the old Hypercard
 > indexing engine! ;-)

IIRC HyperCard's "hint bits" was a bitmap index of terms in fields 
across cards, useful for its find command but not lineoffset.

A while back I had too much time on my hands and started exploring ways 
we might make bitmap indices in LC, per:
<https://en.wikipedia.org/wiki/Bitmap_index>

But as things go I had to get back to real work so I never got any 
further with that than I did experimenting with Bloom filters:
<https://en.wikipedia.org/wiki/Bloom_filter>

They're very different but both useful in a wide range of contexts, so 
if any of you happens to have code for making and using those in LC 
please feel free to share.

Even with LC's handy bitwise operators, I suspect making either of those 
efficiently would be best left to an external, even better since there's 
tons of sample code lying around for them in other languages.

-- 
  Richard Gaskin
  Fourth World Systems
  Software Design and Development for the Desktop, Mobile, and the Web
  ____________________________________________________________________
  Ambassador at FourthWorld.com                http://www.FourthWorld.com