Ap |U32 |to_uni_title_lc|U32 c
Ap |U32 |to_uni_lower_lc|U32 c
Ap |int |is_utf8_char |U8 *p
+Ap |bool |is_utf8_string |U8 *s|STRLEN len
Ap |bool |is_utf8_alnum |U8 *p
Ap |bool |is_utf8_alnumc |U8 *p
Ap |bool |is_utf8_idfirst|U8 *p
Ap |I32 |utf8_distance |U8 *a|U8 *b
Ap |U8* |utf8_hop |U8 *s|I32 off
Ap |U8* |utf8_to_bytes |U8 *s|STRLEN len
-Ap |U8* |bytes_to_utf8 |U8 *s|STRLEN len
+Ap |U8* |bytes_to_utf8 |U8 *s|STRLEN *len
Ap |UV |utf8_to_uv |U8 *s|I32* retlen
Ap |U8* |uv_to_utf8 |U8 *d|UV uv
p |void |vivify_defelem |SV* sv