1 #ifndef _REGEXP9_H_
2 #define _REGEXP9_H_ 1
3 #if defined(__cplusplus)
4 extern "C" { 
5 #endif
6 
7 AUTOLIB(regexp9)
8 
9 #include <utf.h>
10 
11 typedef struct Resub		Resub;
12 typedef struct Reclass		Reclass;
13 typedef struct Reinst		Reinst;
14 typedef struct Reprog		Reprog;
15 
16 /*
17  *	Sub expression matches
18  */
19 struct Resub{
20 	union
21 	{
22 		char *sp;
23 		Rune *rsp;
24 	}s;
25 	union
26 	{
27 		char *ep;
28 		Rune *rep;
29 	}e;
30 };
31 
32 /*
33  *	character class, each pair of rune's defines a range
34  */
35 struct Reclass{
36 	Rune	*end;
37 	Rune	spans[64];
38 };
39 
40 /*
41  *	Machine instructions
42  */
43 struct Reinst{
44 	int	type;
45 	union	{
46 		Reclass	*cp;		/* class pointer */
47 		Rune	r;		/* character */
48 		int	subid;		/* sub-expression id for RBRA and LBRA */
49 		Reinst	*right;		/* right child of OR */
50 	}u1;
51 	union {	/* regexp relies on these two being in the same union */
52 		Reinst *left;		/* left child of OR */
53 		Reinst *next;		/* next instruction for CAT & LBRA */
54 	}u2;
55 };
56 
57 /*
58  *	Reprogram definition
59  */
60 struct Reprog{
61 	Reinst	*startinst;	/* start pc */
62 	Reclass	class[16];	/* .data */
63 	Reinst	firstinst[5];	/* .text */
64 };
65 
66 extern Reprog	*regcomp9(char*);
67 extern Reprog	*regcomplit9(char*);
68 extern Reprog	*regcompnl9(char*);
69 extern void	regerror9(char*);
70 extern int	regexec9(Reprog*, char*, Resub*, int);
71 extern void	regsub9(char*, char*, int, Resub*, int);
72 
73 extern int	rregexec9(Reprog*, Rune*, Resub*, int);
74 extern void	rregsub9(Rune*, Rune*, int, Resub*, int);
75 
76 /*
77  * Darwin simply cannot handle having routines that
78  * override other library routines.
79  */
80 #ifndef NOPLAN9DEFINES
81 #define regcomp regcomp9
82 #define regcomplit regcomplit9
83 #define regcompnl regcompnl9
84 #define regerror regerror9
85 #define regexec regexec9
86 #define regsub regsub9
87 #define rregexec rregexec9
88 #define rregsub rregsub9
89 #endif
90 
91 #if defined(__cplusplus)
92 }
93 #endif
94 #endif