Add a hrule to only chapter not numbered

Question

I am thinking of adding a hrule to only chapters that are not numbered, in other words the chapters created using chapter*{}. I thought of using the titlesec package- My problem is that I cannot find anything in the documentation about the customizaion of non-numberred (starred) chapters. Any idea?

Answer 1

I guess you have not looked hard enough, it is in the documentation of titlesec, look for numberless. Try

\documentclass{report}

% \usepackage{fncychap}

\usepackage{titlesec}

\titleformat{name=\chapter}[display]%
  {\bfseries\Large}{Chapter \thechapter}{1em}{}

\titleformat{name=\chapter,numberless}[display]%
  {\bfseries\Large}{}{0pt}{}[\titlerule]

\begin{document}

\chapter{First}

\chapter*{Second}

\chapter{Third}

\end{document}

Of course you have to adapt the settings to your likings, and it might happen that titlesec and fncychap interfere (You didn't specify which fncychap settings you use).

Note also that you have to give a definition for the unstarred version, too, as otherwise the setting for the starred version (numberless) don't take effect.

Answer 2

Redefine \@makeschapterhead, for example:

\def\@makeschapterhead#1{%
{\raggedright{\Large\bfseries #1\strut}\par\hrule\nobreak\vskip 10\p@}}