You are advocating building small patterns so that they can be combined into larger patterns, right? If so, your code is buggy (and I don't mean just the superfluous (?:)). 

>perl -E"$sqr=qr/\[.*?\]/; $_='ab[cd]ef[gh]'; s/$sqr$//; say"
ab

[download]

Fixed: 

>perl -E"$sqr=qr/\[[^\[\]]*\]/; $_='ab[cd]ef[gh]'; s/$sqr$//; say"
ab[cd]ef

[download]

In reply to Re^2: Advanced replace function by ikegami
in thread Advanced replace function by sans-clue

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