Lowercase small caps in section/subsection/…

Question

I'm interested in setting the titles of section and more in lowercase small caps. And I don't know how to automatically achieve this.

\documentclass{scrartcl}
\setkomafont{sectioning}{\scshape}
\usepackage{hyperref}
\begin{document}
    \section{Hello}
    \section{hello}
    \subsection{helloHello}
\end{document}

But if I write everything in lowercase, then the \tableofcontents doesn't look good unless I use small caps there too. I know about \MakeLowercase{} but this needs an argument.

By the way, as I noted, I just want to show them in lowercase small caps in the document, not in the table of contents, ….

Any ideas?

PS: I don't know if this is necessary, but I'm using the MinionPro package.

EDIT: after some research, apart from what is answered here, in classicthesis.sty you can look at other different (or semi-different) method.

Answer 1

Here's an option using the titlesec package:

\documentclass{scrartcl}
\usepackage[spanish, es-noindentfirst, es-nosectiondot]{babel}
\usepackage[explicit]{titlesec}
\usepackage{textcase}
\usepackage{microtype}
\usepackage[colorlinks]{hyperref}

\titleformat{\section}
  {\normalfont\Large\scshape}{\large\thesection}{0.7em}{\textls{\MakeTextLowercase{#1}}}
\titleformat{\subsection}
  {\normalfont\large\scshape}{\small\thesubsection}{0.7em}  {\textls{\MakeTextLowercase{#1}}}

\begin{document}

\tableofcontents
\section{Una Secci\'on de Prueba}
\subsection{Una Subsecci\'on de Prueba}

\end{document}

The \MakeTextLowercase command from the textcase package was used since, unlike standard \MakeUppercase, it doesn't change the case of any math­e­mat­ics, or the ar­gu­ments of \cite, \la­bel and \ref com­mands within the ar­gu­ment.

However, care should be taken with this approach (See Incompatibilities between KOMA-Script and titlesec).

Answer 2

A patch that seems to do what you want is as follows. It will apply to all sectional units, though.

The hyperref package must be loaded after the patches have been applied.

\documentclass{scrartcl}
\usepackage[rm=oldstyle]{cfr-lm} % for oldstyle figures
\usepackage{microtype}

\usepackage{xpatch}
\makeatletter
% patch the relevant commands to enclose the section title as argument to a command
\xpatchcmd{\@sect}{#8\@@par}{\lowsmallcaps{#8}\@@par}{}{}
\xpatchcmd{\@ssect}{#5\@@par}{\lowsmallcaps{#5}\@@par}{}{}
\makeatother

% \usepackage{hyperref} % Must go after the patches

\setkomafont{disposition}{\normalfont\scshape} % use small caps for section titles
\setkomafont{sectionentry}{\normalfont} % use normal font in the TOC

% make everything lower case in section titles
\newcommand\lowsmallcaps[1]{\textls{\MakeLowercase{#1}}}

\begin{document}
\tableofcontents
\section{A section With Mixed Case}

\subsection{This is small caps}

\end{document}

---

A different way, inspired by Sveinung's answer, is to redefine the commands; be careful that some other package didn't redefine them, because this could cause conflicts.

\documentclass{article}
\usepackage{xparse}
\usepackage{textcase,color}

\ExplSyntaxOn
\NewDocumentCommand{\changesectionalcommand}{mm}
 {
  \cs_new_eq:cN { csc_\cs_to_str:N #1 } #1
  \RenewDocumentCommand{#1}{som}
   {
    \IfBooleanTF{##1}
     {
      \IfValueT{##2}{ \use:c { phantomsection } }
      \use:c { csc_\cs_to_str:N #1 } * { #2 { ##3 } }
      \IfValueT{##2}{ \addcontentsline{toc}{\cs_to_str:N #1}{##2} }
     }
     {
      \IfNoValueTF{##2}
       {
        \use:c { csc_\cs_to_str:N #1 } [ ##3 ] { #2 { ##3 } }
       }
       {
        \use:c { csc_\cs_to_str:N #1 } [ ##2 ] { #2 { ##3 } }
       }
     }
   }
 }

\NewDocumentCommand{\changesectionnumber}{mm}
 {
  \cs_set:cpn { @seccntformat@\cs_to_str:N #1 } { #2 }
 }
\ExplSyntaxOff
\makeatletter
\renewcommand{\@seccntformat}[1]{%
  \@nameuse{@seccntformat@#1}\csname the#1\endcsname\quad}%
}    

\usepackage{hyperref}
\usepackage{lipsum}


\changesectionalcommand{\section}{\MakeTextUppercase}
\changesectionalcommand{\subsection}{\textcolor{red}}

\begin{document}
\tableofcontents

\section{Mixed Case}
\lipsum[2]
\subsection{Red title}
\lipsum[2]

\section[Bar]{Foo}
\lipsum[2]

\section*{Foo foo}
\lipsum[2]

\section*[Bar bar]{Foo foo foo}
\lipsum[2]

\end{document}

A feature of this redefinition is that \section*[<toc entry>]{Title} is allowed, which will automatically perform the \addcontentsline instruction. Of course, one would usually type \section*[Title]{Title}.

The syntax is

\changesectionalcommand{\seccommand}{\macro}

where \macro receives an argument and \seccommand is one of the known sectional commands (from \part to \subparagraph).

For instance, to have sections in spaced lowercase small caps, one can say

\changesectionalcommand{\section}{\lowsmallcaps}
\newcommand{\lowsmallcaps}[1]{\normalfont\scshape\textls{\MakeTextLowercase{#1}}}

(for \textls, microtype is needed).

However, also a corresponding change to the way the section number is typeset is needed, so a complement has been defined and the complete code would have also

\changesectionnumber{\section}{\normalfont}

or the section number would still be boldface, as usual.

Answer 3

At his homepage, Markus Kohm, the author of KOMA-script, has code for majuscle in section headings.

I have slightly adapted the code from Versalien in \section und \subsection?)

\documentclass[11pt]{scrartcl}

\usepackage[UKenglish]{babel}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{MinionPro}
\renewcommand{\scdefault}{ssc} % MinionPro's spaced small caps as standard

\makeatletter
\newcommand*{\Section}{}
\let\Section\section
\renewcommand*{\section}{%
  \@ifstar {\star@section}{\@dblarg\nonstar@section}%
}
\newcommand*{\star@section}[1]{%
  \Section*{\MakeLowercase{#1}}%
}
\newcommand*{\nonstar@section}[2][]{%
  \Section[{#1}]{\MakeLowercase{#2}}%
}
\let\Subsection\subsection
\renewcommand*{\subsection}{%
  \@ifstar {\star@subsection}{\@dblarg\nonstar@subsection}%
}
\newcommand*{\star@subsection}[1]{%
  \Subsection*{\MakeLowercase{#1}}%
}
\newcommand*{\nonstar@subsection}[2][]{%
  \Subsection[{#1}]{\MakeLowercase{#2}}%
}

\setkomafont{disposition}{\normalcolor\scshape}

\usepackage{hyperref}

\begin{document}
\tableofcontents
\section{Heading level 1}
\subsection{Heading level 2}

\end{document}

This solution works with starred sections. And it is easy to add more formatting by using the normal:

\setkomafont{level}{command}
\addtokomafont{level}{command}

I will also suggest that you use the package textcase to make the case changes more fool proof:

\usepackage[overload]{textcase}

Answer 4

Starting with KOMA-Script version 3.19 you can redefine \sectionlinesformat

\makeatletter
\renewcommand*\sectionlinesformat[4]{%
 \@hangfrom{\hspace*{#2}#3}{\MakeLowercase{#4}}%
}
\makeatother

and use

\setkomafont{disposition}{\normalcolor\scshape}
\setkomafont{sectionentry}{\normalcolor}

to get

Code:

\documentclass{scrartcl}[2015/10/03]
\usepackage[english]{babel}
\usepackage{blindtext}% dummy text

\makeatletter
\renewcommand*\sectionlinesformat[4]{%
 \@hangfrom{\hspace*{#2}#3}{\MakeLowercase{#4}}%
}
\makeatother

\setkomafont{disposition}{\normalcolor\scshape}
\setkomafont{sectionentry}{\normalcolor}

\usepackage{hyperref}
\begin{document}
\tableofcontents
\blinddocument
\end{document}

Answer 5

Here's a solution that uses the sectsty package:

\documentclass{scrartcl}
\usepackage{sectsty}
\allsectionsfont{\mdseries\scshape\lowercase}
\usepackage[colorlinks=true]{hyperref}
\begin{document}
\tableofcontents
\section{Hello}
\section{Anyone Home?}
\subsection{Hello Hello}
\end{document}

Note that the defaults of the KOMA-Script document with regard to listing section-level headers (sans-serif font, bold) and subsection-level headers (serif font, non-bold) are preserved. If I understand your specifications, this is something that you want.