I usually parse such text files (text files with column headers) like this: 

use warnings;
@input = (
'U   Np  Pu',
'238 237 244',
);
@name = $input[0] =~ /\S+/g;
@number{@name} = $input[1] =~ /\S+/g;
print "The weight of Pu is ", $number{"Pu"}, "\n";
__END__

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In reply to Re: regex help! by ambrus
in thread regex help! by igotlongestname

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