ApPR |bool |is_uni_print_lc|UV c
ApPR |bool |is_uni_punct_lc|UV c
ApPR |bool |is_uni_xdigit_lc|UV c
+Apd |bool |is_ascii_string|NN const U8 *s|STRLEN len
Apd |STRLEN |is_utf8_char |NN const U8 *s
Apd |bool |is_utf8_string |NN const U8 *s|STRLEN len
Apdmb |bool |is_utf8_string_loc|NN const U8 *s|STRLEN len|NULLOK const U8 **p