I did not know there was a difference between \1 and $1 inside a regular expression

OK, I'll bite :-) I know that \1 can appear in the match (left) part of a substitution (s///) but $1 can only appear in the replacement. Are there other differences?

In reply to Re: YAPC::NA::2003::mandog by grantm
in thread YAPC::NA::2003::mandog by mandog

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