1 ed7c8e8d 2003-09-30 devnull #include "sam.h"
 2 ed7c8e8d 2003-09-30 devnull 
 3 ed7c8e8d 2003-09-30 devnull void
 4 ed7c8e8d 2003-09-30 devnull cvttorunes(char *p, int n, Rune *r, int *nb, int *nr, int *nulls)
 5 ed7c8e8d 2003-09-30 devnull {
 6 ed7c8e8d 2003-09-30 devnull 	uchar *q;
 7 ed7c8e8d 2003-09-30 devnull 	Rune *s;
 8 ed7c8e8d 2003-09-30 devnull 	int j, w;
 9 ed7c8e8d 2003-09-30 devnull 
10 ed7c8e8d 2003-09-30 devnull 	/*
11 ed7c8e8d 2003-09-30 devnull 	 * Always guaranteed that n bytes may be interpreted
12 ed7c8e8d 2003-09-30 devnull 	 * without worrying about partial runes.  This may mean
13 ed7c8e8d 2003-09-30 devnull 	 * reading up to UTFmax-1 more bytes than n; the caller
14 ed7c8e8d 2003-09-30 devnull 	 * knows this.  If n is a firm limit, the caller should
15 ed7c8e8d 2003-09-30 devnull 	 * set p[n] = 0.
16 ed7c8e8d 2003-09-30 devnull 	 */
17 ed7c8e8d 2003-09-30 devnull 	q = (uchar*)p;
18 ed7c8e8d 2003-09-30 devnull 	s = r;
19 ed7c8e8d 2003-09-30 devnull 	for(j=0; j<n; j+=w){
20 ed7c8e8d 2003-09-30 devnull 		if(*q < Runeself){
21 ed7c8e8d 2003-09-30 devnull 			w = 1;
22 ed7c8e8d 2003-09-30 devnull 			*s = *q++;
23 ed7c8e8d 2003-09-30 devnull 		}else{
24 ed7c8e8d 2003-09-30 devnull 			w = chartorune(s, (char*)q);
25 ed7c8e8d 2003-09-30 devnull 			q += w;
26 ed7c8e8d 2003-09-30 devnull 		}
27 ed7c8e8d 2003-09-30 devnull 		if(*s)
28 ed7c8e8d 2003-09-30 devnull 			s++;
29 ed7c8e8d 2003-09-30 devnull 		else if(nulls)
30 ed7c8e8d 2003-09-30 devnull 			*nulls = TRUE;
31 ed7c8e8d 2003-09-30 devnull 	}
32 ed7c8e8d 2003-09-30 devnull 	*nb = (char*)q-p;
33 ed7c8e8d 2003-09-30 devnull 	*nr = s-r;
34 ed7c8e8d 2003-09-30 devnull }
35 ed7c8e8d 2003-09-30 devnull 
36 ed7c8e8d 2003-09-30 devnull void*
37 ed7c8e8d 2003-09-30 devnull fbufalloc(void)
38 ed7c8e8d 2003-09-30 devnull {
39 ed7c8e8d 2003-09-30 devnull 	return emalloc(BUFSIZE);
40 ed7c8e8d 2003-09-30 devnull }
41 ed7c8e8d 2003-09-30 devnull 
42 ed7c8e8d 2003-09-30 devnull void
43 ed7c8e8d 2003-09-30 devnull fbuffree(void *f)
44 ed7c8e8d 2003-09-30 devnull {
45 ed7c8e8d 2003-09-30 devnull 	free(f);
46 ed7c8e8d 2003-09-30 devnull }
47 ed7c8e8d 2003-09-30 devnull 
48 ed7c8e8d 2003-09-30 devnull uint
49 ed7c8e8d 2003-09-30 devnull min(uint a, uint b)
50 ed7c8e8d 2003-09-30 devnull {
51 ed7c8e8d 2003-09-30 devnull 	if(a < b)
52 ed7c8e8d 2003-09-30 devnull 		return a;
53 ed7c8e8d 2003-09-30 devnull 	return b;
54 ed7c8e8d 2003-09-30 devnull }