This is a huge stab in the dark here, but I thought I'd give it a try. On the last line of the regex, it uses a code evaluation expression (which I believe is still experimental) to set the @cts array using the last unused portion of the line in an internal, separate regex.
#!/usr/bin/perl
use warnings;
use strict;
my %bad;
while (<DATA>){
chomp;
my @cts;
my ($t, $p, $s, $d)
= (/^([A-Z]\d\d)\s+ # $t
(1?\d)\s+ # $p
(\d?\d(?:\.1)?)\s+ # $s
([0-3])\s+ # $d
(?{@cts = $' =~ m#(\d?\d\.\d)#g}) # @cts
/x)
or ($bad{$_}++) && next;
print join(' ', @cts);
print "\n";
}
print "\nPrinting bad lines:\n";
while (my ($k, $v) = each %bad){
print "$k: $v\n";
}
__DATA__
C31 6 3 2.4 1.5 2.6
C32 2 7 3 1.0
H31 1 1 0 21.0 11.2 5.3 1.4
T11 2 1 0 6.0 1.1 2.2
L06 1 1 0 1.0 3.3
L06 1 4 0 1.1 1.8
__END__
1.0
21.0 11.2 5.3 1.4
6.0 1.1 2.2
1.0 3.3
1.1 1.8
Printing bad lines:
C31 6 3 2.4 1.5 2.6 : 1
On one long line, the regex would look like this (note I've replaced your literal spaces with \s):
/^([A-Z]\d\d)\s+(1?\d)\s+(\d?\d(?:\.1)?)\s+([0-3])\s+(?{@cts = $' =~ m
+#(\d?\d\.\d)#g})/
-stevieb
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