Substitutions work by editing the string being matched, but you want the substitutions to work on the string being returned. That doesn't work.

You could do it with a parser, but Perl 5 regexp are not good enough to form a parser. (Well, it's theoretically possible with experimental regexp features.)

In reply to Re^5: Regex: Capturing and optionally replacing by ikegami
in thread Regex: Capturing and optionally replacing by McDarren

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