highligh on lines with three or more instances of profanity
    
        | author | Steve Losh <steve@stevelosh.com> | 
    
        | date | Mon, 02 Jun 2014 11:39:16 -0700 | 
    
        | parents | 80e8bc166d00 | 
    
        | children | (none) | 
syn match  pythonBlock		":$" nextgroup=pythonDocString skipempty skipwhite
syn region pythonDocString	matchgroup=Normal start=+[uU]\='+ end=+'+ skip=+\\\\\|\\'+ contains=pythonEscape,@Spell contained
syn region pythonDocString	matchgroup=Normal start=+[uU]\="+ end=+"+ skip=+\\\\\|\\"+ contains=pythonEscape,@Spell contained
syn region pythonDocString	matchgroup=Normal start=+[uU]\="""+ end=+"""+ contains=pythonEscape,@Spell contained
syn region pythonDocString	matchgroup=Normal start=+[uU]\='''+ end=+'''+ contains=pythonEscape,@Spell contained
hi def link pythonDocString	Comment