/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include "sam.h" voidcvttorunes(char *p, int n, Rune *r, int *nb, int *nr, int *nulls){	uchar *q;	Rune *s;	int j, w; 	/*	 * Always guaranteed that n bytes may be interpreted	 * without worrying about partial runes.  This may mean	 * reading up to UTFmax-1 more bytes than n; the caller	 * knows this.  If n is a firm limit, the caller should	 * set p[n] = 0.	 */	q = (uchar*)p;	s = r;	for(j=0; j<n; j+=w){		if(*q < Runeself){			w = 1;			*s = *q++;		}else{			w = chartorune(s, (char*)q);			q += w;		}		if(*s)			s++;		else if(nulls)			*nulls = TRUE;	}	*nb = (char*)q-p;	*nr = s-r;} void*fbufalloc(void){	return emalloc(BUFSIZE);} voidfbuffree(void *f){	free(f);} uintmin(uint a, uint b){	if(a < b)		return a;	return b;}