> pww("plain", nrow = 7, ncol = 9)
/ - - - - - - - - - \ 
| X   X   X   X   X | 
|   X   X   X   X   | 
| X   X   X   X   X | 
|   X   X   X   X   | 
| X   X   X   X   X | 
|   X   X   X   X   | 
| X   X   X   X   X | 
\ - - - - - - - - - / 

