example features as discussed in help session:

QUOTED:
=============================================
   wrote:$
   writes:$
   write:$
   wrote:$|writes:$|write:$|said:$
   line begins /^[ \t]*[A-Z]?[A-Z]?[A-Z]?[ ]*[>:@]/

PTEXT vs. HEADL
=============================================
   avg_center_position        => integer
   is avg_center_position between 45 and 55?   => boolean
   is centered                => boolean
   #lines in block            => integer
   is #lines in block is 1 or 2? => boolean
   is_not_indenteded (space at beginning of line = 0,1,2)? => boolean
   #_of_spaces_at_beginning_of_line  => integer
   avg_line_length_excluding_last_line => integer
   is avg_line_length_excluding_last_line > 70 => boolean
   block_length => integer
   is_block_length < 2 => boolean
   is_block_length > 3 => boolean
   pct_of_upcase_vs_lcase => real
   mean_number_of_internal_spaces => real
   is mean_number_of_internal_spaces < 1.3 => boolean
   block_number_after_NNHEAD