Proposed GETSYNTAX function

[RLB at MIT-MC (Richard L. Bryan)]

getsyntax	SUBR 2 args

	(getsyntax c s) returns information about the synttax of the character
c in the readtable.  c can be a fixnum which is the Ascii code for a character,
or it can be a character object.  s is a symbol selecting which information is
required.
	SYNTAX - the syntax bits are returned as a fixnum.
	SINGLE - if the syntax of  c  is that for single character objects,
		 T is returned; otherwise, NIL.
	MACRO  - if  c  is a macro character, the function is returned.
	SPLICING - if  c  is a splicing macro character, the function is
		 returned.
	CHTRAN - returns a character object which is the chtran of  c .