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