MH mark

• The heart of mark is two very useful modules and one function:

        use Set::IntSpan;
        use Tie::File;

        sub mhc;

• Set::IntSpan is for managing strings of the form

        20 22-25 30 40-44 55-56 59 62-64 66-73 75-77 79-81 106 108-109

• Tie::File lets you treat a file like an array

• sub mhc simply runs an MH command

        sub mhc {
          my $cmd = shift;
          my $result = qx{$cmd};
          exit 1 unless defined $result;
          chomp $result;
          $result;
        }

• Typical usage:

        # Figure out the name of the current folder
        $folder = mhc "folder -fast";

• I could have reimplemented all of MH's folder management machinery in Perl

• But it was easier to reuse the MH commands, as was intended

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Copyright © 2012 M. J. Dominus