You guys are great. I'll try testing my own ideas before coming here next time....

Basically, $1 and $2 take the value of inside the parentheses() of the last successful match (ie. the match is true). If there are no parentheses, they take the value of undef. If there is no match they don't get overwritten ...

Edit credit: AnomalousMonk and ig (not sure if I took the right steps here, can I just delete mine and rely on AnomalousMonk 's?).

Thanks a lot!

In reply to Re^6: Error: Use of uninitialized value $item in concatenation (.) or string at... by jonc
in thread Error: Use of uninitialized value $item in concatenation (.) or string at... by jonc

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