You're almost there: 
    s/(\w+) ?(OR|NOT|AND|$)/\(fieldname \= '$1'\) $2/g;

[download]

should do it. But that's just for this particular example. If you want to be able to process something more complicated, I'd recommend using a parser. For instance, Parse::Recdescent, or a regular expression using (??{ }) constructs.

Abigail

In reply to Re: Parsing a boolean search string for SQL query by Abigail-II
in thread Parsing a boolean search string for SQL query by bradcathey

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