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