file format / data structure

       @
   ___ @
  / _ \@
 |  __/@
  \___|@
       @@

• Each figchar is a fixed number of lines, this is specified in the header.
• Each line of a figchar must be the same width, a "maximum" is in the header.
• Each line of a figchar must use the same line ending (the "standard" is @).
• The last line of a figchar doubles up the line ending.

  $self->{_font}->[$i] = [$length,#maxLen
                          $wLead, #wLead
                          $wTrail,#wTrail
                          split($/, $self->{_font}->[$i])];