Perl_is_utf8_alpha
Perl_is_utf8_ascii
Perl_is_utf8_space
+Perl_is_utf8_perl_space
+Perl_is_utf8_perl_word
Perl_is_utf8_cntrl
Perl_is_utf8_digit
+Perl_is_utf8_posix_digit
Perl_is_utf8_graph
Perl_is_utf8_upper
Perl_is_utf8_lower
Perl_warn
Perl_vwarn
Perl_warner
+Perl_ck_warner
+Perl_ck_warner_d
Perl_vwarner
Perl_whichsig
Perl_yylex