30 #define NEED(p,b,n,r)	\  argument
33 		if (((b)->re_end - (b)->re_cur) < (n)) \
35 			size_t	o = (b)->re_cur - (b)->re_buf; \
36 			size_t	a = ((b)->re_end - (b)->re_buf); \
40 			if (!((b)->re_buf = alloc(p->env->disc, (b)->re_buf, a))) \
42 				(b)->re_buf = (b)->re_cur = (b)->re_end = 0; \
46 			(b)->re_cur = (b)->re_buf + o; \
47 			(b)->re_end = (b)->re_buf + a; \
51 #define PUTC(p,b,x,r)	\  argument
54 		NEED(p, b, 1, r); \
55 		*(b)->re_cur++ = (x); \
58 #define PUTS(p,b,x,z,r)	\  argument
61 		NEED(p, b, z, r); \
62 		memcpy((b)->re_cur, x, z); \
63 		(b)->re_cur += (z); \
71 sub(const regex_t* p, register regsub_t* b, const char* ss, register regsubop_t* op, size_t nmatch,…  in sub()  argument
92 			NEED(p, b, e - s, return c);  in sub()
101 					*b->re_cur++ = c;  in sub()
110 					*b->re_cur++ = c;  in sub()
121 					*b->re_cur++ = c;  in sub()
126 					*b->re_cur++ = *s++;  in sub()
131 			NEED(p, b, op->len, return c);  in sub()
132 			s = b->re_rhs + op->off;  in sub()
135 				*b->re_cur++ = *s++;  in sub()
151 	register regsub_t*	b;  in regsubexec()  local
157 	b = p->re_sub;  in regsubexec()
158 	m = b->re_min;  in regsubexec()
159 	b->re_cur = b->re_buf;  in regsubexec()
165 			PUTS(p, b, s, match->rm_eo, return fatal(p->env->disc, c, NiL));  in regsubexec()
168 			PUTS(p, b, s, match->rm_so, return fatal(p->env->disc, c, NiL));  in regsubexec()
169 			if (!c && (c = sub(p, b, s, b->re_ops, nmatch, match)))  in regsubexec()
173 		if (m <= 0 && !(b->re_flags & REG_SUB_ALL) || !*s)  in regsubexec()
190 		PUTC(p, b, c, return fatal(p->env->disc, c, NiL));  in regsubexec()
192 	NEED(p, b, 1, return fatal(p->env->disc, c, NiL));  in regsubexec()
193 	*b->re_cur = 0;  in regsubexec()
194 	b->re_len = b->re_cur - b->re_buf;  in regsubexec()