-\def\parse@dhd#1{\@ifnextchar[{\parse@dhd@a{#1}}{\parse@dhd@c{#1}}}
-\def\parse@dhd@a#1[#2]{#1{#2}}
-\def\parse@dhd@c#1#2#3{\parse@dhd@cc{#1}{#2}{#3}#3 \q@}
-\def\parse@dhd@cc#1#2#3#4 #5\q@{#1{#4}{#2}{#3}}
+\def\@setf{setf}
+
+%% \parse@dhd{NEXT}{CAT}[NAME]{SYNOPSIS}
+%% call NEXT{MOD}{CAT}{NAME}{SYNOPSIS}
+%% #1 #2 #3 #4
+\def\parse@dhd#1#2{% {NEXT}{CAT}
+ \@ifnextchar[{\parse@dhd@cc{#1}{#2}}{\parse@dhd@cd{#1}{#2}}}
+\def\parse@dhd@cc#1#2[#3]#4{% {NEXT}{CAT}[NAME]{SYNOPSIS}
+ #1{}{#2}{#3}{#4}}
+\def\parse@dhd@cd#1#2#3{% {NEXT}{CAT}{SYNOPSIS}
+ \parse@dhd@ce{#1}{#2}{#3}#3 \q@}
+\def\parse@dhd@ce#1#2#3#4 #5\q@{%
+ % {NEXT}{CAT}{SYNOPSIS}NAME [ARGS...]\q@
+ \def\temp@{#4}%
+ \ifx\temp@\@setf\def\next@{\parse@dhd@csetf{#1}{#2}{#3}#5 \q@}%
+ \else\def\next@{#1{}{#2}{#4}{#3}}\fi%
+ \next@%
+}
+\def\parse@dhd@csetf#1#2#3(#4 #5\q@{%
+ % {NEXT}{CAT}{SYNOPSIS}(NAME [ARGS...])\q@
+ #1{setf}{#2}{#4}{#3}}