1 #
2 /*
3  *	UNIX shell
4  *
5  *	S. R. Bourne
6  *	Bell Telephone Laboratories
7  *
8  */
9 
10 #define LOCAL	static
11 #define PROC	extern
12 #define CONST	const
13 #define EXTERN	extern
14 #define TYPE	typedef
15 #define STRUCT	TYPE struct
16 #define UNION	TYPE union
17 #define REG	/* register */
18 
19 #define IF	if(
20 #define THEN	){
21 #define ELSE	} else {
22 #define ELIF	} else if (
23 #define FI	;}
24 
25 #define BEGIN	{
26 #define END	}
27 #define SWITCH	switch(
28 #define IN	){
29 #define ENDSW	}
30 #define FOR	for(
31 #define WHILE	while(
32 #define DO	){
33 #define OD	;}
34 #define REP	do{
35 #define PER	}while(
36 #define DONE	);
37 #define LOOP	for(;;){
38 #define POOL	}
39 
40 
41 #define SKIP	;
42 #define DIV	/
43 #define REM	%
44 #define NEQ	^
45 #define ANDF	&&
46 #define ORF	||
47 
48 #define TRUE	(-1)
49 #define FALSE	0
50 #define LOBYTE	0377
51 #define STRIP	0177
52 #define QUOTE	0200
53 
54 #define EOF	0
55 #define NL	'\n'
56 #define SP	' '
57 #define LQ	'`'
58 #define RQ	'\''
59 #define MINUS	'-'
60 #define COLON	':'
61 
62 #define MAX(a,b)	((a)>(b)?(a):(b))
63