\end{describe}
\begin{describe}{mac}
- {sequence-output (@<stream-var> @<sequencer>) \\ \ind
- @{ :constraint (@<item-name>^*) @} \\
+ {sequence-output (@<stream-var> @<sequencer>) \\ \ind
+ @{ :constraint (@<item-name>^*) @} \\
@{ (@<item-name> @<form>^*) @}^*}
\end{describe}