Wc -Sx- Jones wrote:
>
> [Becuase of a recent discussion on Postfix-users list]
> Would anyone like to expand/explain what, exactly, is // matching below:
>
> #! perl
>
> use strict;
> use warnings;
>
> my $idx;
>
> while (<DATA>) {
> ++$idx; print "Line $idx - seen $_" if //;
> }
> __DATA__
>
>
> Line 3
>
> Line 5
This is from perldoc perlop:
If the PATTERN evaluates to the empty string, the last
*successfully* matched regular expression is used instead.
HTH,
Rob
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