* Get the length of UTF-8 byte sequence "p[size]". Does not include any
* following composing characters.
* Returns 1 for "".
- * Returns 1 for an illegal byte sequence.
+ * Returns 1 for an illegal byte sequence (also in incomplete byte seq.).
* Returns number > "size" for an incomplete byte sequence.
*/
int
{
int len;
int i;
+ int m;
if (*p == NUL)
return 1;
- len = utf8len_tab[*p];
+ m = len = utf8len_tab[*p];
if (len > size)
- return len; /* incomplete byte sequence. */
- for (i = 1; i < len; ++i)
+ m = size; /* incomplete byte sequence. */
+ for (i = 1; i < m; ++i)
if ((p[i] & 0xc0) != 0x80)
return 1;
return len;