# How can I get matching curly double quotes using listings?

I'm having a strange problem with listings. I'm trying to use matching double quotes around strings, as in this minimal example:

\documentclass{article}

\usepackage{listings}
\lstset{
language=Java,
tabsize=2,
numbers=left,
basicstyle=\footnotesize
}

\begin{document}

\begin{lstlisting}
void my_method() {
int test = 0;
some_method(string");
boolean b = false;
some_method(string");

}
\end{lstlisting}

\end{document}


First of all, the backticks render individually instead of as a nice curly left double quote like I want. And, well, the bigger problem is that after inserting the backticks it starts showing all the whitespace in my code in between the two strings, even when I add showspaces=false to my settings, as in the following screenshot:

I've found a lot about how to use straight double quotes, but I actually do want the curly quotes. Does anyone know how I can insert the left quotation marks properly?

You can get the curly left quotes with literate, but imho you have to disable the string delimiter to avoid to get the spaces shown.

\documentclass{article}

\usepackage{listings}
\lstset{
language=Java,
tabsize=2,
numbers=left,
basicstyle=\footnotesize,
literate={}{\textquotedblleft}1,
deletestring=[b]",
,
}

\begin{document}

\begin{lstlisting}
void my_method() {
int test = 0;
some_method(string");
boolean b = false;
some_method(string");

}
\end{lstlisting}

\end{document}


• Hmm, it seems it has two single left quotes, rather than a double left quote. – egreg Jul 21 '16 at 20:20
• @egreg, you are right, one has to use \textquotedblleft – Ulrike Fischer Jul 21 '16 at 20:26
• I wish I could accept both answers, since it was really just the literate thing I was looking for. I went with something like this, used '' instead of ", and added {''}{\textquotedblright}1 to the arguments for literate. – Anonymous Jul 21 '16 at 20:40

listings scans character by character, so you have to teach it not do do this in special cases:

\documentclass{article}

\usepackage{listings}
\lstset{
language=Java,
tabsize=2,
numbers=left,
basicstyle=\footnotesize,
literate=
{}{\odblq}{1}
{''}{\cdblq}{1},
}
\newcommand{\odblq}{}
\newcommand{\cdblq}{''}

\begin{document}

\begin{lstlisting}
void my_method() {
int test = 0;
some_method(string'');
boolean b = false;
some_method(string'');

}
\end{lstlisting}

\end{document}


Using '' for the closing quotes avoids the problem with " being considered a delimiter.

However, this might confuse your readers, who could think that reverse quotes are needed in their code.

An alternative could be using UTF-8

\documentclass{article}
\usepackage[utf8]{inputenc}

\usepackage{listings}
\lstset{
language=Java,
tabsize=2,
numbers=left,
basicstyle=\footnotesize,
literate=
{“}{\odblq}{1}
{”}{\cdblq}{1},
}
\newcommand{\odblq}{}
\newcommand{\cdblq}{''}

\begin{document}

\begin{lstlisting}
void my_method() {
int test = 0;
some_method(“string”);
boolean b = false;
some_method(“string”);

}
\end{lstlisting}

\end{document}

• Your two solutions solved the problem with quotation marks (I prefer the last one because I need \usepackage[utf8]{inputenc} in my full document), but if I have defined a stringstyle=\bfseries\color{blue}, this doesn't work properly (I mean the quotation marks works fine but inside “example” the word example doesn't painted blue). Do you need an MWE in a new question? – manooooh Jul 21 '18 at 8:46
• Please see this example. – manooooh Jul 21 '18 at 8:50