3

I used tikz to define some custom symbols. They work fine in the text, but I have problems using them in a section title:

\documentclass{article}
\usepackage{tikz}
\newcommand{\customSymbol}[1]
{%
  \begin{tikzpicture}[#1]
    \draw (0,0) -- (1,0);
  \end{tikzpicture}
}

\begin{document}
This works fine: \customSymbol{}.
% \section{This does not work: \customSymbol{}}
\end{document}

What can I do to fix this?

2
  • 3
    The sectioning content is written to an external file, so it can not include "fragile" macros. Try \section{This should work: \protect\customSymbol{}} instead. Commented Dec 19, 2017 at 14:51
  • 1
    Possible duplicate of Adding tikz figure in caption. Please see the explanation and link in the accepted answer there. Commented Dec 19, 2017 at 14:54

1 Answer 1

3
 \DeclareRobustCommand\customSymbol[1]{...}
1
  • 2
    I think you are missing curly braces around the command name (i.e. use \DeclareRobustCommand{\customSymbol}[1]{...} instead). For other newbies like me, this general discussion of robust vs. new command might also be helpful Commented Jul 26, 2020 at 0:05

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