Hi, I have a regex that i want to store as a multi-line var (with comments) at the top of the program - but when I make it multi-line it fails, when it is on a singel line it is OK. What am I doing wrong? This doesn't work - but if i take all the space and line feeds out it is OK. 
my $regex ='
    ^(\w*)?\s
    (\w*)?\s
    (\w*)?\s
    (?:([A-Z]*)\s)?
    (\d+)\*
    (?:([0-9+]+)[>])?
    ([0-9+]+)\s.
    (\d*)
    ';

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I use it like this - or at least this works if the regex is all one one line. 
$input_string=~m/$regex/;

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In reply to how to write a multi-line regex by zerocred

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