[Tex/LaTex] Fancyhdr and redefinition of leftmark/rightmark

fancyhdrheader-footer

I am writing a long document and I decided to change the headers, using fancyhdr :

\documentclass[12pt,a4paper]{book}

\renewcommand*\thesection{\arabic{section}}

\usepackage{fancyhdr}
% Fancyhdr setup
\fancypagestyle{main}{
\fancyhead{} % clear all header fields
\fancyhead[LE]{\footnotesize{\scshape\nouppercase{Chapitre~\thechapter ~-    ~\leftmark}}}
\fancyhead[RO]{\footnotesize{\scshape\nouppercase{\thesection~-~\rightmark}}}
\fancyfoot{} % clear all footer fields
\fancyfoot[LE,RO]{\thepage}
\renewcommand{\headrulewidth}{0 pt}
\renewcommand{\footrulewidth}{0 pt}
\renewcommand{\sectionmark}[1]{\markright{#1}}
\renewcommand{\chaptermark}[1]{\markboth{#1}{}}
}
\begin{document}
\end{document}

The problem is this code does not compile, and the problem is whit the two lines :

\renewcommand{\sectionmark}[1]{\markright{#1}}
\renewcommand{\chaptermark}[1]{\markboth{#1}{}}

To solve the problem I just put them outside the definition of main headers, but it doesn't give the same result.

How should I fix this error without changing my headers ?

PS. I want the headers to be on right pages like "3 – Section title" and on the left pages (except at a begining of a chapter) like "Chapitre 1 – Title of chapter"

Thanks.

Best Answer

Redefine \chaptermark and \sectionmark outside the page style definition after using \pagstyle{fancy}.

\usepackage{fancyhdr}
\pagestyle{fancy}
\renewcommand{\sectionmark}[1]{\markright{\thesection~- ~#1}}
\renewcommand{\chaptermark}[1]{\markboth{\chaptername~\thechapter~-~ #1}{}}

Code:

\documentclass[12pt,a4paper,french]{book}
\renewcommand*\thesection{\arabic{section}}
\usepackage[T1]{fontenc}
\usepackage{babel}

\usepackage{fancyhdr}
\pagestyle{fancy}
\renewcommand{\sectionmark}[1]{\markright{\thesection~- ~#1}}
\renewcommand{\chaptermark}[1]{\markboth{\chaptername~\thechapter~-~ #1}{}}

% Fancyhdr setup
\fancypagestyle{main}{
\fancyhf{} % clear all header fields
\fancyhead[LE]{\footnotesize\scshape\leftmark}
\fancyhead[RO]{\footnotesize\scshape\rightmark}
\fancyfoot[LE,RO]{\thepage}
\renewcommand{\headrulewidth}{0 pt}
\renewcommand{\footrulewidth}{0 pt}
}

\pagestyle{main}

\usepackage{blindtext}% dummy text
\begin{document}
\blinddocument
\end{document}
\documentclass[extrafontsizes]{memoir}
\InputIfFileExists{scrsize10pt.clo}{}
%\usepackage[fontsize=13pt]{scrextend}
\usepackage{garamondx}
\begin{document}
test
\end{document}

Related Solutions

[Tex/LaTex] Header not displaying correctly on chapter page due to subsection

We must give more structure to the right mark emitted by the \chapter command; so we do

\renewcommand{\chaptermark}[1]{%
  \markboth{\chaptername\ \thechapter}
           {\noexpand\firstsubsectiontitle}}

The \subsectiontitle macro will be defined by the \subsection command; of course it won't work if no subsection starts in the first page:

\renewcommand{\subsectionmark}[1]{%
  \markright{#1}\gdef\firstsubsectiontitle{#1}}

Here's an example; notice some changes I've made to your code. For instance I've redefined the \sectionmark command so it doesn't emit any mark.

The solution to the numbering problem of subsection is to \setcounter{secnumdepth}{1}.

\documentclass{report}

% PACKAGES
\usepackage{fancyhdr}
\usepackage{lastpage} % Allows referencing of the last page to allow footer to read: "Page [Current page] of [Total number of pages]."
\usepackage{comment} % Allows comments of the type: \begin{comment}This text is commented out.\end{comment}
%\usepackage[colorlinks=true]{hyperref} % Turns table of contents and labels into clickable links. Commented out to speed up compiling.
\usepackage[T1]{fontenc} % Allows use of ">" symbol.
\usepackage{lmodern} %Not really sure what this is for.

% FORMATTING
% Header and Footer
\pagestyle{fancy}

% Allows calling chapter and section names in headers and footers.
\renewcommand{\chaptermark}[1]{%
  \markboth{\chaptername\ \thechapter}
  {\noexpand\firstsubsectiontitle}}
\renewcommand{\sectionmark}[1]{}
\renewcommand{\subsectionmark}[1]{%
  \markright{#1}\gdef\firstsubsectiontitle{#1}}
\newcommand\firstsubsectiontitle{}

% General Header and Footer
\fancyhf{}
\fancyhead[L]{\DocumentAuthor} 
\fancyhead[R]{\BookAuthor>\leftmark>\rightmark}
\fancyfoot[C]{Page \thepage\ of \pageref{LastPage}}

% Chapter Header and Footer
\fancypagestyle{plain}{%
  \fancyhf{} \fancyhead[L]{\DocumentAuthor}%
  \fancyhead[R]{\BookAuthor>\leftmark>\rightmark}%
  \fancyfoot[C]{Page \thepage\ of \pageref{LastPage}}%
}

% Header/Footer Separation-line Width
\renewcommand\headrulewidth{0.4pt} 
\renewcommand\footrulewidth{0.4pt}

\setlength\parindent{0pt} % Remove paragraph indentation.

% NAME AND CLASS SECTION
\newcommand{\DocumentAuthor}{Author Name}
\newcommand{\BookAuthor}{Book Author}

\setcounter{secnumdepth}{1}

%DOCUMENT
\begin{document}

\tableofcontents
\thispagestyle{empty}

\chapter{Title of Chapter 1}
\section{Sample Problems}
\subsection{Title of Subsection 1}
\pagebreak{}
\subsection{Title of Subsection 2}
\subsection{Title of Subsection 3}
\pagebreak{}
\subsection{Title of Subsection 4}

\end{document}

With this code the first subsection in the page will be put in the header.

What's \noexpand\firstsubsectiontitle doing? The \markboth and \markright commands must record the current values of the counters and titles, so their arguments are passed through an \edef; this, in the case of the first chapter and English language, would set a left mark with value Chapter\ 1. If we said only \firstsubsectiontitle in the second argument, it would be expanded leaving a wrong right mark because it would be empty for the first chapter and would contain the last subsection in the preceding chapter!

So we say "dear TeX, don't expand \firstsubsectiontitle right now, but only when you'll set the header."

Actually, if there can be more than one subsection in the chapter pages, a different solution should be used:

% Allows calling chapter and section names in headers and footers.
\renewcommand{\chaptermark}[1]{%
  \markboth{\chaptername\ \thechapter}
           {\noexpand\firstsubsectiontitle}%
  \global\firstsubsectionmarktrue}
\renewcommand{\sectionmark}[1]{}
\renewcommand{\subsectionmark}[1]{%
  \markright{#1}%
  \iffirstsubsectionmark
    \gdef\firstsubsectiontitle{#1}%
  \fi
  \global\firstsubsectionmarkfalse}
\newif\iffirstsubsectionmark
\def\firstsubsectiontitle{}

so that the first subsection would set the mark.

[Tex/LaTex] latex fancyhdr: is possible to use leftmark and rightmark alternatively

You can test if the \rightmark is empty by fully expanding it; the command \rightorleftmark will do what you want (uncomment the \section line to see the difference).

\documentclass{book}

\usepackage{fancyhdr}
\pagestyle{fancy}

\fancyhf{}
\lhead{\nouppercase{\rightorleftmark}}
\rhead{\thepage}

\makeatletter
\newcommand{\rightorleftmark}{%
  \begingroup\protected@edef\x{\rightmark}%
  \ifx\x\@empty
    \endgroup\leftmark
  \else
    \endgroup\rightmark
  \fi}
\makeatother

\begin{document}
\mainmatter
\chapter{A}
%\section{B}
abc\newpage
def\newpage
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] Header not displaying correctly on chapter page due to subsection

[Tex/LaTex] latex fancyhdr: is possible to use leftmark and rightmark alternatively

Related Question