Page Layout ⇒ memoir | ToC with Chapter Numbers in Margin

[Bram]

In the table of contents, I have made the chapter numbers right aligned (see the code below). This ensures that there is always the same amount of white between the chapter number and the chapter title. However, I would like to have the chapter numbers in the margin, such that the 'C' of 'Contents' aligns with the 'T' of 'This is a chapter'.

Any help would be very much appreciated!

Code: Select all

\documentclass{memoir}

% this sets the chapter number right aligned
\newlength{\tocspaceafterchapnum}
\setlength{\tocspaceafterchapnum}{0.5em}% extra space at end of number
\renewcommand*{\cftchapterpresnum}{\hfill}% note the double `l'
\renewcommand*{\cftchapteraftersnum}{\hspace*{\tocspaceafterchapnum}}
\addtolength{\cftchapternumwidth}{\tocspaceafterchapnum}

\begin{document}

\tableofcontents*

\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}
\chapter{This is a chapter}

\end{document}