🚀 go-pugleaf

    Within the last year, I read a review on XCMDs and XFCNs which mentioned
two commercially available externals which do Boolean searches on stacks. One
was called XSearch, which makes me think it must be a port of the popular
Boolean-search algorithm found on many mainframes. I have completely forgotten
where I saw the article. I've scanned MacWorld back to Jan. of 1989 with no
luck.

    Can anyone help me with:

      i) The article itself; 
     ii) The external commands referenced by the article; or, 
    iii) Any other Boolean-search externals which might be available?

    Cheers,

    Eric.
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