How about:

Ok, I want to match a string that can possibly go over multiple lines.

$string =~ m/.*/s This will match everything. You will have to be a little more precise.

Also, I want to print all lines between 23 and 56 (say...)

open FILE, "<$file" or "Oops Perl says $!\n";
@file = <FILE>;
close FILE;
print @file[22..55];

# or without glbbing in the whole file $. has line number we are at
open FILE, "<$file" or "Oops Perl says $!\n";
while(<FILE>) {
    next if $. < 23;
    last if $. > 56;
    print;
}
close FILE;
[download]

Also, how about printing everything between and tags? Over multiple lines..

I suggest this as the best solution HTML::TokeParser Tutorial by crazyinsomniac

Update

cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print

Hints: You might want to look at the flip flop operator. The /m and /s regex modifiers might be helpful. You might also want to check into to $. variable.

If you get stuck after following up on these hints, let us know, but don't expect us to put more work into the answer than you have. ;-)

-Blake