sbase/libutf/fgetrune.c

37 lines
576 B
C

/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../utf.h"
int
fgetrune(Rune *r, FILE *fp)
{
char buf[UTFmax];
int i = 0, c;
while (i < UTFmax && (c = fgetc(fp)) != EOF) {
buf[i++] = c;
if (charntorune(r, buf, i) > 0)
break;
}
if (ferror(fp))
return -1;
return i;
}
int
efgetrune(Rune *r, FILE *fp, const char *file)
{
int ret;
if ((ret = fgetrune(r, fp)) < 0) {
fprintf(stderr, "fgetrune %s: %s\n", file, strerror(errno));
exit(1);
}
return ret;
}