faster.regex

(?<typeorqualifortypdf>((?&identifierpure))(?(?{checktypeorqualifortypdf(1)})|(*F)))

(?<qualifonly>((?&identifierpure))(?(?{checkqualifonly()})|(*F)))

(?<fasterdecls>(?(?=(?{push2 \@matches, {}})(?<declbod>((?(<tagend>)(*F))(\s*+(?&typeorqualifortypdf)\s*+
    |(\s*+\b(?<tagtype>struct|union)\b\s*+(?<identtag>((?&identifierpure)?+))(?{eval {$matches[-1]{strc}=$^N}})\s*+
    ((?&brackets)(?{register_taggable()}))?+\s*+
    |\s*+\benum\b\s*+(?<ident_enum>(((?&identifierpure))(?{eval {$matches[-1]{strc}=$^N}}))?+)\s*+
    (\{\s*+(?{push2 \@matches, {}})
        ((?&normal_rec)(?&init_q)?+
        (,(?&normal_rec)(?&init_q)?+)*+,?+)?+
    (?{pop2 \@matches})\s*+\}\s*+)?+)((?<tagend>;)(?{dispatch_file_scope_stm(pos(),$minlen)}))?+
    ))*+
    (?(<tagend>)|(?&identoutter)
    (\s*+(?&parens)\s*+)*+(?&init_q)?+((,(?&identoutter)(\s*+(?&parens)\s*+)*+(?<init_q>=((?&parens)|(?&brackets)|(?&strunus)|[^\[\]\(\)\{\}'";,])*+)?+)*+
    (;(?{dispatch_file_scope_stm(pos(),$minlen)}))
    |\s*+(?&brackets)(?{dispatch_file_scope_stm(pos(),$minlen)})))))
    \g{declbod}(?<=[};])
    (?{pop2 \@matches})|(*F)(?{pop2 \@matches})))

(?<rndbrcksdecl>\s*\((?<inparen>(?<inparenin>\s*+(?&ptr)*+\s*+((?<identinside>(?&identifierpure))(?{register_normal_decl($+{identinside})})|(?&rndbrcksdecl))(\s*+(?&parens)\s*+)*+\s*)*+
    ((?&inparenin)(?&inparen))?+)\)\s*)

(?<identoutter>\s*+(?&ptr)*+((?&rndbrcksdecl)|(?<normal_rec>\s*+(?<identnormal>(?&identifierpure))(?{register_normal_decl($+{identnormal})})\s*+))\s*+)