Tests for para start and termination
plain para, terminated by two \n
plain para, only one \n Is this a new para
para, 1 leading sp
para 2 leading sp
para 3 leading sp
para line ends sans space continuation line, same para
para line ends one sp continuation line or not?
para line ends two sp
Is this a cont line?
para line ends three sp
Is this a cont line?
para, \n\s continuation line
para, \n\s{1..3} continuation line
para, \n\s{1..3} continuation line
para
para
Below is 3 * sp \n
Next para