Formatting Memoir's \sourceatright font and size

Question

I have been trying to get the author of a quote to show in a different font size and font style than the rest of the quotation.

MWE:

\documentclass[11pt]{memoir} % draft

\renewcommand*{\sourceatright}[2][2em]{{%
  \unskip\nobreak\hfil\penalty50
  \hskip#1\hbox{}\nobreak\hfil\tiny\sffamily{#2}
  \parfillskip\z@\finalhyphendemerits=0\par}}

\begin{document}
\begin{quotation}
  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam ante sapien, feugiat sed elit id, tempus dictum erat. Maecenas bibendum eget lectus eu mollis.\sourceatright{Lipsum 2016}
\end{quotation}

\end{document}

From what I can tell it doesn't like the placing of \tiny\sffamily but I just can't work out how to do it.

The error I get is this:

 ! Undefined control sequence.
 \\sourceatright ...\sffamily {#2} \parfillskip \z
                                                  @\finalhyphendemerits =0\p...
 l.11 ...ctus eu mollis.\sourceatright{Lipsum 2016}

Any help is appreciated.

score 4 · Accepted Answer · edited Apr 13 '17 at 12:35

You need \makeatletter and \makeatother, see What do \makeatletter and \makeatother do?. But also another adjustment.

\documentclass[11pt]{memoir} % draft

\makeatletter
\renewcommand*{\sourceatright}[2][2em]{{%
  \unskip\nobreak\hfil\penalty50
  \hskip#1\hbox{}\nobreak\hfil{\tiny\sffamily#2}%
  \parfillskip\z@\finalhyphendemerits=\z@\par}}
\makeatother

\begin{document}

\begin{quotation}
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Aliquam ante sapien, feugiat sed elit id, tempus dictum erat.
Maecenas bibendum eget lectus eu mollis.\sourceatright{Lipsum 2016}
\end{quotation}

\end{document}

The difference is that \tiny\sffamily{#2} should be {\tiny\sffamily#2}, otherwise \tiny would be in force when the paragraph is split into lines, with nefarious consequences.

Shorter code with xpatch.

\documentclass[11pt]{memoir} % draft

\usepackage{xpatch}

\xpatchcmd{\sourceatright}{#2}{\tiny\sffamily#2}{}{}

\begin{document}

\begin{quotation}
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Aliquam ante sapien, feugiat sed elit id, tempus dictum erat.
Maecenas bibendum eget lectus eu mollis.\sourceatright{Lipsum 2016}
\end{quotation}

\end{document}

Formatting Memoir's \sourceatright font and size

1 Answers1