ref: e3583a0837891ab2059b91f6500c88baf34982dc
dir: /sys/src/cmd/jam/util.c/
#include "sam.h" void cvttorunes(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); } void fbuffree(void *f) { free(f); } uint min(uint a, uint b) { if(a < b) return a; return b; }