1 b3994ec5 2003-12-11 devnull /*#pragma	varargck	argpos	editerror	1*/
 2 b3994ec5 2003-12-11 devnull 
 3 b3994ec5 2003-12-11 devnull typedef struct Addr	Addr;
 4 b3994ec5 2003-12-11 devnull typedef struct Address	Address;
 5 b3994ec5 2003-12-11 devnull typedef struct Cmd	Cmd;
 6 b3994ec5 2003-12-11 devnull typedef struct List	List;
 7 b3994ec5 2003-12-11 devnull typedef struct String	String;
 8 b3994ec5 2003-12-11 devnull 
 9 b3994ec5 2003-12-11 devnull struct String
10 b3994ec5 2003-12-11 devnull {
11 b3994ec5 2003-12-11 devnull 	int	n;		/* excludes NUL */
12 b3994ec5 2003-12-11 devnull 	Rune	*r;		/* includes NUL */
13 b3994ec5 2003-12-11 devnull 	int	nalloc;
14 b3994ec5 2003-12-11 devnull };
15 b3994ec5 2003-12-11 devnull 
16 b3994ec5 2003-12-11 devnull struct Addr
17 b3994ec5 2003-12-11 devnull {
18 b3994ec5 2003-12-11 devnull 	char	type;	/* # (char addr), l (line addr), / ? . $ + - , ; */
19 b3994ec5 2003-12-11 devnull 	union{
20 b3994ec5 2003-12-11 devnull 		String	*re;
21 b3994ec5 2003-12-11 devnull 		Addr	*left;		/* left side of , and ; */
22 b3994ec5 2003-12-11 devnull 	} u;
23 b3994ec5 2003-12-11 devnull 	ulong	num;
24 b3994ec5 2003-12-11 devnull 	Addr	*next;			/* or right side of , and ; */
25 b3994ec5 2003-12-11 devnull };
26 b3994ec5 2003-12-11 devnull 
27 b3994ec5 2003-12-11 devnull struct Address
28 b3994ec5 2003-12-11 devnull {
29 b3994ec5 2003-12-11 devnull 	Range	r;
30 b3994ec5 2003-12-11 devnull 	File	*f;
31 b3994ec5 2003-12-11 devnull };
32 b3994ec5 2003-12-11 devnull 
33 b3994ec5 2003-12-11 devnull struct Cmd
34 b3994ec5 2003-12-11 devnull {
35 b3994ec5 2003-12-11 devnull 	Addr	*addr;			/* address (range of text) */
36 b3994ec5 2003-12-11 devnull 	String	*re;			/* regular expression for e.g. 'x' */
37 b3994ec5 2003-12-11 devnull 	union{
38 b3994ec5 2003-12-11 devnull 		Cmd	*cmd;		/* target of x, g, {, etc. */
39 b3994ec5 2003-12-11 devnull 		String	*text;		/* text of a, c, i; rhs of s */
40 b3994ec5 2003-12-11 devnull 		Addr	*mtaddr;		/* address for m, t */
41 b3994ec5 2003-12-11 devnull 	} u;
42 b3994ec5 2003-12-11 devnull 	Cmd	*next;			/* pointer to next element in {} */
43 b3994ec5 2003-12-11 devnull 	short	num;
44 b3994ec5 2003-12-11 devnull 	ushort	flag;			/* whatever */
45 b3994ec5 2003-12-11 devnull 	ushort	cmdc;			/* command character; 'x' etc. */
46 b3994ec5 2003-12-11 devnull };
47 b3994ec5 2003-12-11 devnull 
48 b3994ec5 2003-12-11 devnull extern struct cmdtab{
49 b3994ec5 2003-12-11 devnull 	ushort	cmdc;		/* command character */
50 b3994ec5 2003-12-11 devnull 	uchar	text;		/* takes a textual argument? */
51 b3994ec5 2003-12-11 devnull 	uchar	regexp;		/* takes a regular expression? */
52 b3994ec5 2003-12-11 devnull 	uchar	addr;		/* takes an address (m or t)? */
53 b3994ec5 2003-12-11 devnull 	uchar	defcmd;		/* default command; 0==>none */
54 b3994ec5 2003-12-11 devnull 	uchar	defaddr;	/* default address */
55 b3994ec5 2003-12-11 devnull 	uchar	count;		/* takes a count e.g. s2/// */
56 b3994ec5 2003-12-11 devnull 	char	*token;		/* takes text terminated by one of these */
57 b3994ec5 2003-12-11 devnull 	int	(*fn)(Text*, Cmd*);	/* function to call with parse tree */
58 b3994ec5 2003-12-11 devnull }cmdtab[];
59 b3994ec5 2003-12-11 devnull 
60 b3994ec5 2003-12-11 devnull #define	INCR	25	/* delta when growing list */
61 b3994ec5 2003-12-11 devnull 
62 b3994ec5 2003-12-11 devnull struct List	/* code depends on a long being able to hold a pointer */
63 b3994ec5 2003-12-11 devnull {
64 b3994ec5 2003-12-11 devnull 	int	nalloc;
65 b3994ec5 2003-12-11 devnull 	int	nused;
66 b3994ec5 2003-12-11 devnull 	union{
67 b3994ec5 2003-12-11 devnull 		void	*listptr;
68 734a96bd 2008-03-07 rsc 		void*	*ptr;
69 b3994ec5 2003-12-11 devnull 		uchar*	*ucharptr;
70 b3994ec5 2003-12-11 devnull 		String*	*stringptr;
71 b3994ec5 2003-12-11 devnull 	} u;
72 b3994ec5 2003-12-11 devnull };
73 b3994ec5 2003-12-11 devnull 
74 b3994ec5 2003-12-11 devnull enum Defaddr{	/* default addresses */
75 b3994ec5 2003-12-11 devnull 	aNo,
76 b3994ec5 2003-12-11 devnull 	aDot,
77 cbeb0b26 2006-04-01 devnull 	aAll
78 b3994ec5 2003-12-11 devnull };
79 b3994ec5 2003-12-11 devnull 
80 b3994ec5 2003-12-11 devnull int	nl_cmd(Text*, Cmd*), a_cmd(Text*, Cmd*), b_cmd(Text*, Cmd*);
81 b3994ec5 2003-12-11 devnull int	c_cmd(Text*, Cmd*), d_cmd(Text*, Cmd*);
82 b3994ec5 2003-12-11 devnull int	B_cmd(Text*, Cmd*), D_cmd(Text*, Cmd*), e_cmd(Text*, Cmd*);
83 b3994ec5 2003-12-11 devnull int	f_cmd(Text*, Cmd*), g_cmd(Text*, Cmd*), i_cmd(Text*, Cmd*);
84 b3994ec5 2003-12-11 devnull int	k_cmd(Text*, Cmd*), m_cmd(Text*, Cmd*), n_cmd(Text*, Cmd*);
85 b3994ec5 2003-12-11 devnull int	p_cmd(Text*, Cmd*);
86 b3994ec5 2003-12-11 devnull int	s_cmd(Text*, Cmd*), u_cmd(Text*, Cmd*), w_cmd(Text*, Cmd*);
87 b3994ec5 2003-12-11 devnull int	x_cmd(Text*, Cmd*), X_cmd(Text*, Cmd*), pipe_cmd(Text*, Cmd*);
88 b3994ec5 2003-12-11 devnull int	eq_cmd(Text*, Cmd*);
89 b3994ec5 2003-12-11 devnull 
90 b3994ec5 2003-12-11 devnull String	*allocstring(int);
91 b3994ec5 2003-12-11 devnull void		freestring(String*);
92 b3994ec5 2003-12-11 devnull String	*getregexp(int);
93 b3994ec5 2003-12-11 devnull Addr	*newaddr(void);
94 b3994ec5 2003-12-11 devnull Address	cmdaddress(Addr*, Address, int);
95 b3994ec5 2003-12-11 devnull int	cmdexec(Text*, Cmd*);
96 b3994ec5 2003-12-11 devnull void	editerror(char*, ...);
97 b3994ec5 2003-12-11 devnull int	cmdlookup(int);
98 b3994ec5 2003-12-11 devnull void	resetxec(void);
99 b3994ec5 2003-12-11 devnull void	Straddc(String*, int);