Make ordering of mappings and application stable #29
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Perl 5.8.1 added hash randomisation (see https://metacpan.org/release/JHI/perl-5.8.1/view/pod/perldelta.pod#Hash-Randomisation). The effect is that multiple invocations of `keys %hash` return the hash keys in different ordering, even between separate runs of the script with the same inputs. As a result, running the script multiple times, yielded non-identical XML output, since the order of the mappings and application lists is different every time. By first sorting the hash keys for the mapping and application hashes before iterating over them, multiple runs of the script with the same inputs result in identical output.
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Perl 5.8.1 added hash randomisation (see
https://metacpan.org/release/JHI/perl-5.8.1/view/pod/perldelta.pod#Hash-Randomisation).
The effect is that multiple invocations of
keys %hashreturn the hash keys indifferent ordering, even between separate runs of the script with the same
inputs.
As a result, running the script multiple times, yielded non-identical XML
output, since the order of the mappings and application lists is different
every time.
By first sorting the hash keys for the mapping and application hashes before
iterating over them, multiple runs of the script with the same inputs result in
identical output.