Problem with Range Operator sequence number - Perl

Paul.Porcelli@aggreko.co.uk (Paul Porcelli) wrote in message news:<4384f73c.0407140741.12bede1c@posting.google.com>...
> I have the following code(excerpt) which grabs some lines from a
> syslog
> file and adds any found in the range to an array.
>
> @lines=();@vvlines=();
> $t = new Net::Telnet (Timeout => 30, Prompt => '/<\d+\>/');
> $t->open($t3);
> $t->login($username, $passwd);
> @lines=$t->cmd("tail -1000 syslog");
> $t->close;
> foreach (@lines) {
> push(@vvlines,$_) if /Volume vol[1-2] verification started/ ..
> /Volume vol[1-2] verification ended/;
> }
>
> This piece of code is part of a foreach loop which iterates two times.
> I have a problem with the following situation:
>
> Pass 1 of the foreach finds the left side of the range but never finds
> the right side. This means that the range operator is still true.
>
> Pass 2 of the foreach now pushes all the lines onto the vvlines array
> as the range operator is still true. This is not desired. I only want
> to push the lines after the left side is matched.
>
> How do I reset the range operator to false between each iteration of
> the foreach loop ?

Its difficult for me to quite understand the problem correctly, but
what I think you are asking is you want to push all the lines in
@lines immediately following the first range and the last one before
the end of the range. Richard Gration has posted one way to do this.

However, your start and end regexes will never match your text the way
they are now.

/\QVolume vol[1-2] verification started\E/
^ ^
You need to precede and end the regex with \Q and \E to escape the
brackets or else, simply backslah the brackets, '\[1-2\]', because
perl thinks they define a character class otherwise.

Chris