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Hello Aia, and thanks for the response.

I'm interested in learning the ins and outs of regular expressions for the purpose of crossword and other word puzzle writing.

Typically with crossword...

Hello all- New to this forum, and relatively new to using grep at the Terminal command line to work with regular expressions. I've got a background in mathematics and some programming experience, so...

Thanks, RudiC. So it would like the indexing solution you proposed earlier? Would that happen in Perl or something else? Or is it not feasible anyway? I realize there's a lot of computing going on...

Hello, thank you all for your replies, and apologies for the delay in responding in kind. Let me try to address all of your questions/comments. First, Don, hopefully the attached screenshot answers...

Hello all- New to this forum, and relatively new to using grep at the Terminal command line to work with regular expressions. I've got a background in math and some programming experience, so it's...