1 /*
2  * S-expressions as used by IMAP.
3  */
4 
5 enum
6 {
7 	SxUnknown = 0,
8 	SxAtom,
9 	SxString,
10 	SxNumber,
11 	SxList
12 };
13 
14 typedef struct Sx Sx;
15 struct Sx
16 {
17 	int type;
18 	char *data;
19 	int ndata;
20 	vlong number;
21 	Sx **sx;
22 	int nsx;
23 };
24 
25 Sx*	Brdsx(Biobuf*);
26 Sx*	Brdsx1(Biobuf*);
27 void	freesx(Sx*);
28 int	oksx(Sx*);
29 int	sxfmt(Fmt*);
30 int	sxwalk(Sx*);