Dear all,

my problem lies in the fact that the interpreter seems to ignore the second section, which is are substr of the values use in the first section: 

foreach my $ref ( sort { $a cmp $b 
                     || 
                     substr($a,1) <=> substr($b,1) 
                 } keys %{$self->{'residues'}{$i}}){
        print "$ref\t";
    }

[download]
The $refs are simply letters in uppercase followed by numbers, id like to sort them by their letters, and then by the numbers. Here is a sample (but wrong) output: 
A95
A96
A97
A98
A99
B1
B10
B11
B12
B13

[download]
If I dont include the '$a cmp $b', then the keys are sorted according to the numbers, so I know that the substr section is working, but it just doesn't seem to pass through the '||'...

cheers
Sam

In reply to sorting using substrs of same string by seaver

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