2795                 vFAIL2utf8f("Sequence (%" UTF8f "...) not recognized",  in S_parse_lparen_question_flags()
3377                 vFAIL2utf8f( "'(*%" UTF8f "' requires a terminating ':'",  in S_reg()
3385                     vFAIL2utf8f( "Unknown verb pattern '%" UTF8f "'",  in S_reg()
3389                     vFAIL2utf8f( "Unknown '(*...)' construct '%" UTF8f "'",  in S_reg()
3780                         "Sequence (%" UTF8f "...) not recognized",  in S_reg()
4841                        "%" UTF8f " matches null string many times",  in S_regpiece()
5809                             "'%" UTF8f "' is an unknown bound type",  in S_regatom()
8414             vFAIL3utf8f("POSIX class [:%s%" UTF8f ":] unknown",  in S_handle_possible_posix()
9911                         vFAIL2utf8f("%" UTF8f, UTF8fARG(SvUTF8(msg),  in S_regclass()
10173                         "False [] range \"%" UTF8f "\"",  in S_regclass()
10178                         "False [] range \"%" UTF8f "\"",  in S_regclass()
10346                     "Invalid [] range \"%" UTF8f "\"",  in S_regclass()
12458                         Perl_croak(aTHX_ "%" UTF8f,  in Perl_get_regclass_aux_data()
13811     Perl_croak(aTHX_ "%" UTF8f, UTF8fARG(utf8, len-1, buf));  in S_re_croak()
14233                 Perl_sv_catpvf(aTHX_ msg, "%" UTF8f,  in S_handle_user_defined_property()
14268                     Perl_sv_catpvf(aTHX_ msg, "%" UTF8f,  in S_handle_user_defined_property()
14296             Perl_sv_catpvf(aTHX_ msg, "%" UTF8f,  in S_handle_user_defined_property()
14315             Perl_sv_catpvf(aTHX_ msg, "%" UTF8f,  in S_handle_user_defined_property()
14422         Perl_sv_catpvf(aTHX_ msg, "%" UTF8f, UTF8fARG(is_utf8, name_len, name));  in S_handle_user_defined_property()
14496         Perl_sv_catpvf(aTHX_ fq_name, "%" UTF8f,  in S_get_fq_name()
14501     Perl_sv_catpvf(aTHX_ fq_name, "%" UTF8f,  in S_get_fq_name()
15473                     Perl_sv_catpvf(aTHX_ msg, "%" UTF8f, UTF8fARG(is_utf8,  in S_parse_uniprop_string()
15886         Perl_sv_catpvf(aTHX_ msg, "%" UTF8f, UTF8fARG(is_utf8, name_len, name));  in S_parse_uniprop_string()