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Sorting arrays of intervals in perl?

You need to extract first number for every element, and do numerical comparison using <=> operator,

my @array = qw(1-5 7-9 10-15 20-58
123-192 234-256);
my @sorted = sort {
  my ($aa,$bb) = map /^([0-9]+)/, $a,$b; 

  $aa <=> $bb;
} @array;

Categories : Perl

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