Re^3: How do I extract named variable names from regex string

Thank you for playing, but you fail.

"" =~ /(?:(?<mon>\w+)\s(?<mon>\w+))?/;

say scalar keys %-;   # 1
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All that's required is for the pattern to match. Taking the pattern, and wrapping it inside a (?: )? will make it match against "" (except for some degenerate cases). If you look back at my code, this is exactly what I did.

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Re^4: How do I extract named variable names from regex string by LanX (Saint) on Jan 31, 2012 at 03:47 UTC
Ups ... you're right! Cheers Rolf	[reply]