Comments and declarations

Special form


\begin{inset}{} Does nothing and returns no value of interest. {\tt COMMENT}-exp... ...h the semicolon read macro character; see page \pageref{SEMICOLON}.) \end{inset}

Special form


\begin{inset}{} Ordinarily, programs such as compilers which manipulate source p... .../}. \begin{codexenv} (LAMBDA (X Y) (IGNORE X) (CAR Y)) \end{codexenv}\end{inset}

Special form


\begin{inset}{} \par {\tt IGNORABLE} is like {\tt IGNORE} except that permission... ...s to declare that it is all right if the variable is not referenced. \end{inset}