Macro expanders

Special form


\begin{inset}{} Yields a macro expander. A macro expander is a kind of syntax de... ...defined locally using {\tt LET-SYNTAX} or {\tt DEFINE-LOCAL-SYNTAX}. \end{inset}


\begin{inset}{} Returns true if {\it descriptor\/}, which must be a syntax descr... ...CRO-EXPANDER (FOO X) X)) $\Longrightarrow$\ {\it true} \end{codexenv}\end{inset}


\begin{inset}{} Invokes the macro expansion procedure for {\it descriptor\/}, wh... ...)) \\ \> $\Longrightarrow$\ \\ (LAMBDA () (+ 1 2)) \end{tabbing}} \end{inset}


\begin{inset}{} Performs one macro expansion on the {\it form\/}, if it is a lis... ...syntax-table\/} for that symbol, and that entry is a macro expander. \end{inset}