codeverbatim
I am preparing a beamer presentation where I need to display some markdown code involving backticks. Specifically, I want to show backticks in the verbatim environment. However, LaTeX renders them as open quotation marks.
How can I ensure backticks in the verbatim environment display as backticks?
Here's a minimal example:
\begin{verbatim}
Example: `2 + 2`
\end{verbatim}
An ideal solution would not require me to change the code itself.
My turn to try something:
\documentclass{minimal}
\usepackage{verbatim}
\usepackage{listings}
\usepackage{ted}
\newwrite\listinginput
\makeatletter
\def\newsubstitution{\begingroup\let\do\@makeother\dospecials\newsubstitution@}
\def\newsubstitution@||#1||<->||#2||{%
\endgroup
\expandafter\def\expandafter\subst@list\expandafter{\subst@list\Substitute*[\verbatim@line]{\the\verbatim@line}{#1}{#2}}}
\def\clearsubstlist{\let\subst@list\@empty}
\clearsubstlist
\newenvironment{Schunk}
{\begingroup
\@bsphack
\immediate\openout\listinginput=\jobname.lst%
\let\do\@makeother\dospecials\catcode`\^^M\active
\def\verbatim@processline{%
\subst@list
\immediate\write\listinginput{\the\verbatim@line}}%
\verbatim@start}%
{\immediate\closeout\listinginput
\@esphack
\endgroup
\lstinputlisting{\jobname.lst}}
\makeatother
\begin{document}
\newsubstitution||\begin{Sinput}||<->||Swe@veBeginInput||
\newsubstitution||\end{Sinput}||<->||Swe@veEndInput||
\newsubstitution||\begin{Soutput}||<->||Swe@veBeginOutput||
\newsubstitution||\end{Soutput}||<->||Swe@veEndOutput||
With a substitution list:
\begin{Schunk}
\begin{Sinput}
> getLatexStrWidth("The symbol: alpha")
\end{Sinput}
\begin{Soutput}
[1] 82.5354
\end{Soutput}
\end{Schunk}
\clearsubstlist
With no substitution list:
\begin{Schunk}
\begin{Sinput}
> getLatexStrWidth("The symbol: alpha")
\end{Sinput}
\begin{Soutput}
[1] 82.5354
\end{Soutput}
\end{Schunk}
\end{document}
Here is an option with fancyvrb where you can change the formatting of specific lines; the code should be self-explanatory:
\documentclass{article}
\usepackage{fancyvrb,xcolor}
\begin{document}
Write this:
\begin{Verbatim}
function doit() {
console.log("Hello");
}
\end{Verbatim}
And then add these lines:
\renewcommand{\FancyVerbFormatLine}[1]{%
\ifnum\value{FancyVerbLine}=2
\textcolor{red}{#1}% Format specific line
\else
#1% Else, do nothing different
\fi
}
\begin{Verbatim}
function doit() {
var s = "Hello";
console.log(s);
}
\end{Verbatim}
\renewcommand{\FancyVerbFormatLine}{}% Clear how lines are formatted differently
\begin{Verbatim}
function doit() {
var s = "Hello";
console.log(s);
}
\end{Verbatim}
\end{document}
It should work for elementary setups and small code formatting.
Best Answer
You can also use the relative new package
upquote, which is explicitly created for that task – together with the change for single quote marks, compare How to make a real apostrophe or single-quote in LaTeX.Without
upquote:With
upquote: