Force Subsections Headings into Title Case (AMSart class)

Question

Is there any way of force the titles of subsections in the amsart to be in title case by default? I tried this but no luck:

\documentclass{amsart}
\usepackage[utf8]{inputenc}
\usepackage{etoolbox}
\usepackage{titlecaps}
\makeatletter
\patchcmd{\subsection}{\bfseries}{\titlecap}{}{}
\makeatother
\begin{document}
\maketitle
\section{Section}
\subsection{Subsection with lowercase letters}
\end{document}

Related: https://tex.stackexchange.com/questions/103838/converting-text-to-title-case, https://tex.stackexchange.com/questions/34796/capitalizing-strings-ignoring-closed-class-words, https://tex.stackexchange.com/questions/4809/how-can-i-force-text-to-be-displayed-in-title-case. — Marijn, May 18 '21 at 13:00
@Marijn https://tex.stackexchange.com/questions/4809/how-can-i-force-text-to-be-displayed-in-title-case only works for the apa class — Michael Cook, May 18 '21 at 13:43

Steven B. Segletes · Accepted Answer · 2021-05-18T14:37:15.607

The reason why replacing \bfseries with \titlecap does not work is that \bfseries is a declaration that does not take an argument, whereas \titlecap is a macro requiring an argument.

However, this approach may work, of redefining \@sect to look for subsections (when #2 = 2) and, upon finding so, replace the subsection title #8 with \titlecap{#8}. I also turned off \bfseries in #6 since that seems to be what the OP wanted.

\documentclass{amsart}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{etoolbox}
\usepackage{titlecaps}
\makeatletter
\let\sv@sect@sect
\def@sect#1#2#3#4#5#6[#7]#8{%
  \ifnum#2=2 
    \def\next{\sv@sect{#1}{#2}{#3}{#4}{#5}{\normalfont}[#7]{\titlecap{#8}}}%
  \else
    \def\next{\sv@sect{#1}{#2}{#3}{#4}{#5}{#6}[#7]{#8}}%
  \fi
  \next
}
\makeatother
\begin{document}
\section{Section}
\subsection{Subsection with lowercase letters}
\subsection{another test case}
\end{document}

Thank you for not only answering but providing a clear explaination. — Michael Cook, May 18 '21 at 14:40

score 0 · Answer 2 · answered May 18 '21 at 13:56

0

look at my code. It solves your problem by using \uppercase

\documentclass{amsart}
\usepackage[utf8]{inputenc}
\usepackage{etoolbox}
\usepackage{titlecaps}
\makeatletter
\patchcmd{\subsection}{\bfseries}{\titlecap}{}{}
\makeatother
\begin{document}
\maketitle
\section{\uppercase{Section}}
\subsection{\uppercase{Subsection with lowercase letters}}
\end{document}

Hope this works.

answered May 18 '21 at 13:56

Bpi

188
6

1

I want it in Title case, not uppercase and I want to automate it fully. – Michael Cook May 18 '21 at 14:00

Force Subsections Headings into Title Case (AMSart class)

2 Answers2