So search case insensitively, and later compare all matches with the search string, and report only those matches are not eq the key.

And note that the grep built-in searches in list, not in files.

Perl 6 - second systems done right

In reply to Re^3: How to make sure only case-sensitive grep's get pushed by moritz
in thread How to make sure only case-sensitive grep's get pushed by Anonymous Monk

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