76     file_unichar_t **ubuf, size_t *ulen, const char **code,  in file_encoding()  argument
86 	if (ubuf == NULL)  in file_encoding()
87 		ubuf = &udefbuf;  in file_encoding()
99 	mlen = (nbytes + 1) * sizeof((*ubuf)[0]);  in file_encoding()
100 	*ubuf = CAST(file_unichar_t *, calloc(CAST(size_t, 1), mlen));  in file_encoding()
101 	if (*ubuf == NULL) {  in file_encoding()
105 	if (looks_ascii(buf, nbytes, *ubuf, ulen)) {  in file_encoding()
106 		if (looks_utf7(buf, nbytes, *ubuf, ulen) > 0) {  in file_encoding()
115 	} else if (looks_utf8_with_BOM(buf, nbytes, *ubuf, ulen) > 0) {  in file_encoding()
119 	} else if (file_looks_utf8(buf, nbytes, *ubuf, ulen) > 1) {  in file_encoding()
123 	} else if ((ucs_type = looks_ucs32(buf, nbytes, *ubuf, ulen)) != 0) {  in file_encoding()
132 	} else if ((ucs_type = looks_ucs16(buf, nbytes, *ubuf, ulen)) != 0) {  in file_encoding()
141 	} else if (looks_latin1(buf, nbytes, *ubuf, ulen)) {  in file_encoding()
145 	} else if (looks_extended(buf, nbytes, *ubuf, ulen)) {  in file_encoding()
159 		if (looks_ascii(nbuf, nbytes, *ubuf, ulen)) {  in file_encoding()
163 		} else if (looks_latin1(nbuf, nbytes, *ubuf, ulen)) {  in file_encoding()
177 	if (ubuf == &udefbuf)  in file_encoding()
264 looks_ ## NAME(const unsigned char *buf, size_t nbytes, file_unichar_t *ubuf, \
277 		ubuf[(*ulen)++] = buf[i]; \
350 file_looks_utf8(const unsigned char *buf, size_t nbytes, file_unichar_t *ubuf,  in file_looks_utf8()  argument
358 	if (ubuf)  in file_looks_utf8()
371 			if (ubuf)  in file_looks_utf8()
372 				ubuf[(*ulen)++] = buf[i];  in file_looks_utf8()
416 			if (ubuf)  in file_looks_utf8()
417 				ubuf[(*ulen)++] = c;  in file_looks_utf8()
432     file_unichar_t *ubuf, size_t *ulen)  in looks_utf8_with_BOM()  argument
435 		return file_looks_utf8(buf + 3, nbytes - 3, ubuf, ulen);  in looks_utf8_with_BOM()
441 looks_utf7(const unsigned char *buf, size_t nbytes, file_unichar_t *ubuf,  in looks_utf7()  argument
450 			if (ubuf)  in looks_utf7()