Things to Do:
-=-=-=-=-=-=-

	- The string tab/detab routines replace/insert tabs in literal
	  strings
DONE	- Need to handle '%' char which passes thru to ftn
	- A structure such as 
		
		repeat			# loop over it
		{
		   .....stuff
		}

	  will not put the opening bracket in the right place.
	- Make the literal string an object returned by sf_get_tok()
	- Force two blank lines after procedures
