formatting titles/sections/subsections in article

Question

I am struggling with a simple problem. I am using the KOMA class

\documentclass[11pt]{scrartcl}%

I need to format my titles headings so that:

• Section headings should be identified by Arabic numbers followed by a dot e.g. 1., 2., etc. Text in Bold

• Subheadings should be identified by Arabic numbers followed by a dot, e.g 1.1 , 2.1 Text Not Bold

• Subsubheadings be identified by Arabic numbers followed by a dot. e.g 1.1.1 Text Italicized.

For all section titles, all main words in the title should be capitalized, e.g. “Hello Stackoverflow This Is Great”

Thanks!!!!

Answer 1

There's a simple way to add the dots to all sectioning levels:

\usepackage[numbers=endperiod]{scrartcl}

But in fact you want only sections to have final dots, so you need to do the following:

\documentclass[]{scrartcl}

\renewcommand*{\sectionformat}{\thesection.\enskip}

There's a simple way to change the fonts:

\setkomafont{subsection}{\normalfont}
\setkomafont{subsubsection}{\normalfont\itshape}

There's not a simple way to do title case automatically. But adapting the answer here:

• setkomafont with uppercase that works robustly

it's possible to use the titlecaps package with the scrartcl class in the following way. If you can live without automatic title case (I would personally just do it yourself) you can eliminate all of this part of the code. Here's the full example.

If you do want to do this, then Schweinebacke's answer is slightly simpler since it modifies code one level of abstraction higher than the code I modified.

\documentclass[]{scrartcl}
\setkomafont{subsection}{\normalfont}
\setkomafont{subsubsection}{\normalfont\itshape}
\renewcommand*{\sectionformat}{\thesection.\enskip}
% The rest of this preamble code is only needed for automatic title casing
\usepackage{titlecaps}
% this is a space separated list of words that should be lowercase
% since you have to add to this list manually, title casing is not truly automatic
\Addlcwords{a an the that to this is are and with}
\makeatletter
% adapted from https://tex.stackexchange.com/a/33215/
% ---- only needed for automatic title case ----
\let\scr@section\section
\let\scr@subsection\subsection
\let\scr@subsubsection\subsubsection
\def\section{\@ifstar\cased@sections\cased@section}
\def\subsection{\@ifstar\cased@subsections\cased@subsection}
\def\subsubsection{\@ifstar\cased@subsubsections\cased@subsubsection}
\def\cased@sections#1{\scr@section*{\titlecap{#1}}}
\def\cased@subsections#1{\scr@subsection*{\titlecap{#1}}}
\def\cased@subsubsections#1{\scr@subsubsection*{\titlecap{#1}}}
\def\cased@section{\@dblarg{\cased@section@}}
\def\cased@subsection{\@dblarg{\cased@subsection@}}
\def\cased@subsubsection{\@dblarg{\cased@subsubsection@}}
\def\cased@section@[#1]#2{%
  \scr@section[\titlecap{#1}]{\titlecap{#2}}}
\def\cased@subsection@[#1]#2{%
  \scr@subsection[\titlecap{#1}]{\titlecap{#2}}}
\def\cased@subsubsection@[#1]#2{%
  \scr@subsubsection[\titlecap{#1}]{\titlecap{#2}}}
\makeatother
% ---- only needed for automatic titlecase ----

\begin{document}

\section{A section with a word that should use uppercase}
\subsection{This is a subsection with most words uppercase}
\subsubsection{This is a subsubsection}
\end{document}

Answer 2

Last edit (I had to edit the answer because of too many upvotes it did not really deserved)

\documentclass[11pt]{scrartcl}
\usepackage[utf8]{inputenc}
\usepackage{nameref}
\usepackage{mfirstuc}
\MFUnocap{$f(x)=2\cdot x$}

\renewcommand{\sectionformat}{}
\renewcommand{\subsectionformat}{}
\renewcommand{\subsubsectionformat}{}

\renewcommand*\sectionformat{\normalfont\bfseries\Large}
\renewcommand*\subsectionformat{\normalfont\mdseries\rmfamily\large}
\renewcommand*\subsubsectionformat{\normalfont\itshape\large}



\let\oldsection\section
\makeatletter
\def\section{%
\@ifstar{\@Starred}{\@nonStarred}%
}
\def\@Starred{%
\setkomafont{section}{\sectionformat}%
\@ifnextchar[%
{\GenericWarning{}{Warning: A starred section can not have parameters. I am going to ignore them!}\@StarredWith}%
{\@StarredWithout}%
}      
\def\@StarredWith[#1]#2{%
\oldsection*{\capitalisewords{#2}}%
}
\def\@StarredWithout#1{%% This would be simpler if your table of contents is not a section... 
\ifnum\pdfstrcmp{#1}{\contentsname}=0%
    \renewcommand{\sectionformat}{}%
    \setkomafont{section}{\sectionformat}%
    \oldsection*{\contentsname}%
\else%
    \oldsection*{\capitalisewords{#1}}%
 \fi%
}
\def\@nonStarred{%
\setkomafont{section}{\sectionformat\thesection.\space}%
\@ifnextchar[%
{\@nonStarredWith}%
{\@nonStarredWithout}%
}
\def\@nonStarredWith[#1]#2{%
\oldsection[#1]{\capitalisewords{#2}}%
}
\def\@nonStarredWithout#1{%
\oldsection{\capitalisewords{#1}}%
}
\makeatother


\let\oldsubsection\subsection
\makeatletter
\def\subsection{%
\@ifstar{\@Starredss}{\@nonStarredss}%
}
\def\@Starredss{%
\setkomafont{subsection}{\subsectionformat}%
\@ifnextchar[%
{\GenericWarning{}{Warning: A starred section can not have parameters. I am going to ignore them!}\@StarredWithss}%
{\@StarredWithout}%
}      
\def\@StarredWithss[#1]#2{%
\oldsubsection*{\capitalisewords{#2}}%
}
\def\@StarredWithoutss#1{%% This would be simpler if your table of contents is not a subsection... 
\ifnum\pdfstrcmp{#1}{\contentsname}=0%
    \renewcommand{\sectionformat}{}%
    \setkomafont{subsection}{\sectionformat}%
    \oldsubsection*{\contentsname}%
\else%
    \oldsubsection*{\capitalisewords{#1}}%
 \fi%
}
\def\@nonStarredss{%
\setkomafont{subsection}{\subsectionformat\thesubsection\space}%
\@ifnextchar[%
{\@nonStarredWithss}%
{\@nonStarredWithoutss}%
}
\def\@nonStarredWithss[#1]#2{%
\oldsubsection[#1]{\capitalisewords{#2}}%
}
\def\@nonStarredWithoutss#1{%
\oldsubsection{\capitalisewords{#1}}%
}
\makeatother

\let\oldsubsubsection\subsubsection
\makeatletter
\def\subsubsection{%
\@ifstar{\@Starredsss}{\@nonStarredsss}%
}
\def\@Starredsss{%
\setkomafont{subsubsection}{\subsubsectionformat}%
\@ifnextchar[%
{\GenericWarning{}{Warning: A starred section can not have parameters. I am going to ignore them!}\@StarredWithsss}%
{\@StarredWithout}%
}      
\def\@StarredWithsss[#1]#2{%
\oldsubsubsection*{\capitalisewords{#2}}%
}
\def\@StarredWithoutsss#1{%% This would be simpler if your table of contents is not a subsection... 
\ifnum\pdfstrcmp{#1}{\contentsname}=0%
    \renewcommand{\sectionformat}{}%
    \setkomafont{subsection}{\sectionformat}%
    \oldsubsubsection*{\contentsname}%
\else%
    \oldsubsubsection*{\capitalisewords{#1}}%
 \fi%
}
\def\@nonStarredsss{%
\setkomafont{subsubsection}{\subsubsectionformat\thesubsubsection\space}%
\@ifnextchar[%
{\@nonStarredWithsss}%
{\@nonStarredWithoutsss}%
}
\def\@nonStarredWithsss[#1]#2{%
\oldsubsubsection[#1]{\capitalisewords{#2}}%
}
\def\@nonStarredWithoutsss#1{%
\oldsubsubsection{\capitalisewords{#1}}%
}
\makeatother

\begin{document}

\tableofcontents

\section{test section 1 with text of non-capitalized first word}

That was the first test section and here comes the second named ``\nameref{sec:secd}''



\section{the second section with equation $f(x)=2\cdot x$}\label{sec:secd}

\section*{a section with star}


\subsection{the first subsection}
And we can use very simple the nameref like this: ``\nameref{subsub}''
\subsubsection{a subsubsection}\label{subsub}

\end{document}

Result:

Edit: As @AlanMunn mentioned my method is not suggested with this documentclass and I am going to update the answer to include this documentclass... If someone reached this question using other documentclass probably can use this method as an easy one.

Here is an easy way for everything you need... Just don't forget to exclude the equations or the words you don't want to capitalize out of the capitalize function as I did with the command MFUnocap... otherwise you will have errors.

\documentclass[a4paper,10pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{nameref}
\usepackage[explicit]{titlesec}
\usepackage{mfirstuc}
\MFUnocap{$f(x)=2\cdot x$}


\titleformat{\section}
  {\normalfont\Large\bfseries}{\thesection.}{1em}{\capitalisewords{#1}}
\titleformat{\subsection}
  {\normalfont\large}{\thesubsection}{1em}{\capitalisewords{#1}}
\titleformat{\subsubsection}
  {\normalfont\large\itshape}{\thesubsubsection}{1em}{\capitalisewords{#1}}


\begin{document}

\section{Test section 1 with text of non-capitalized first word}

That was the first test section and here comes the second named ``\nameref{sec:second}''

\section{the second section with equation $f(x)=2\cdot x$}\label{sec:second}

\subsection{the first subsection}

\subsubsection{a subsubsection}

\end{document}

Also see that the possible usage of nameref will not show the title as it really is in the title. So you have to manually fix the titles if you want to use nameref as @MichaelPalmer suggested.

Result:

Answer 3

In adaption of Alans's great answer you could redefine \sectionlinesformat instead of \section, \subsection and \subsubsection to make the automatic uppercase of the headings:

\let\orig@sectionlinesformat\sectionlinesformat
\renewcommand*{\sectionlinesformat}[4]{%
  \orig@sectionlinesformat{#1}{#2}{#3}{\titlecap{#4}}%
}%

To change the case of the entries to the table of contents, you could redefine \addtocentrydefault:

\let\orig@addtocentrydefault\addtocentrydefault
\renewcommand*{\addtocentrydefault}[3]{%
  \orig@addtocentrydefault{#1}{#2}{\titlecap{#3}}%
}

And to change the case of the running head, you could redefine \MakeMarkcase:

\let\MakeMarkcase\titlecap

MWE:

\documentclass[]{scrartcl}
\setkomafont{subsection}{\normalfont}
\setkomafont{subsubsection}{\normalfont\itshape}
\renewcommand*{\sectionformat}{\thesection.\enskip}
\renewcommand*{\sectionmarkformat}{\sectionformat}% also for running head
% The rest of this preamble code is only needed for automatic title casing
\usepackage{titlecaps}
% this is a space separated list of words that should be lowercase
% since you have to add to this list manually, title casing is not truly automatic
\Addlcwords{a an the that to this is are and with}
\makeatletter
\let\orig@sectionlinesformat\sectionlinesformat
\renewcommand*{\sectionlinesformat}[4]{%
  \orig@sectionlinesformat{#1}{#2}{#3}{\titlecap{#4}}%
}%
\let\orig@addtocentrydefault\addtocentrydefault
\renewcommand*{\addtocentrydefault}[3]{%
  \orig@addtocentrydefault{#1}{#2}{\titlecap{#3}}%
}
% and if you also want the case change for \paragraph and \subparagraph:
\let\orig@sectioncatchphraseformat\sectioncatchphraseformat
\renewcommand*{\sectioncatchphraseformat}[4]{%
  \orig@sectioncatchphraseformat{#1}{#2}{#3}{\titlecap{#4}}%
}
\makeatother
\let\MakeMarkcase\titlecap
% ---- only needed for automatic titlecase ----
\pagestyle{headings}% to show the running head
\begin{document}
\tableofcontents
\section{A section with a word that should use uppercase}
\subsection{This is a subsection with most words uppercase}
\subsubsection{This is a subsubsection}
\newpage
Empty page
\end{document}

But if you like dirty tricks, you could also do:

\documentclass[]{scrartcl}
\setkomafont{subsection}{\normalfont}
\setkomafont{subsubsection}{\normalfont\itshape}
\renewcommand*{\sectionformat}{\thesection.\enskip}
\renewcommand*{\sectionmarkformat}{\sectionformat}% also for running head
% The rest of this preamble code is only needed for automatic title casing
\usepackage{titlecaps}
% this is a space separated list of words that should be lowercase
% since you have to add to this list manually, title casing is not truly automatic
\Addlcwords{a an the that to this is are and with}
\makeatletter
\let\orig@sectionlinesformat\sectionlinesformat
\renewcommand*{\sectionlinesformat}[4]{%
  \orig@sectionlinesformat{#1}{#2}{#3}{\titlecap{#4}}%
  \expandafter\gdef\expandafter\@currenttocentry\expandafter{%
    \expandafter\titlecap\expandafter{\@currenttocentry}%
  }%
  \expandafter\gdef\expandafter\@currentheadentry\expandafter{%
    \expandafter\titlecap\expandafter{\@currentheadentry}%
  }%
}%
\let\orig@sectioncatchphraseformat\sectioncatchphraseformat
\renewcommand*{\sectioncatchphraseformat}[4]{%
  \orig@sectioncatchphraseformat{#1}{#2}{#3}{\titlecap{#4}}%
  \expandafter\gdef\expandafter\@currentheadentry\expandafter{%
    \expandafter\titlecap\expandafter{\@currentheadentry}%
  }%
}
\makeatother
% ---- only needed for automatic titlecase ----
\pagestyle{headings}% to show the running head
\begin{document}
\tableofcontents
\section{A section with a word that should use uppercase}
\subsection{This is a subsection with most words uppercase}
\subsubsection{This is a subsubsection}
\newpage
Empty page
\end{document}

Both suggestions result in:

The catch phrase code is for \paragraph and \subparagraph.