raphael() wrote:
Cool! I have to admit that is a "detailed" answer. Also thanks for clearing out the differences between these two.. ( my $ip = $last_page ) =~ m/([\d+\.]+)/; ( my $ip ) = ( $last_page ) =~ m/([\d+\.]+)/; Just to clear out any misunderstanding "by above one" I meant ( my $ip = $last_page ) =~ m/([\d+\.]+)/; Now am I getting this right that this is the *wrong syntax* to get list context.
Correct, there is no list context in that statement. The parentheses are required because the =~ operator has higher precedence than the = operator.
Your post was very helpful since I didn't know about parenthesis (or lack of it) to capture values. I always did use parenthesis to capture values like ( my $ip ) = $last_page =~ m/*(*[\d+\.]+*)*/g; Now I *know* this works ( my $ip ) = $last_page =~ m/[\d+\.]+/g;
Again, the '+' character is not a valid IP address character so it should be removed from the character class and the '.' period character does not need to be escaped inside a character class.
The capturing parentheses are *required* when you only want to return *part* of a pattern:
( my $ip ) = $last_page =~ /IP: *([\d.]+)/g; Or when you want to match a single pattern without the /g option: ( my $ip ) = $last_page =~ /([\d.]+)/; John -- The programmer is fighting against the two most destructive forces in the universe: entropy and human stupidity. -- Damian Conway -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
