How to make my keywords still get highlighted no matter the breaklines is set to true?

Question

I got a bit of trouble with the listings package. I am trying to highlight a custom language with lstdefinelanguage but for reasons I can't understand, highlighting for my ) keyword, and only the ) keyword, breaks as soon as I enable breaklines in lstset.

I'd expect the keyword ) to get highlighted just like (, +and so on even if breaklines is set to true.

Here's a minimal example to reproduce the issue:

    \documentclass[10pt, leqno]{article}
    \usepackage{listings}
    \usepackage[usenames,dvipsnames]{color}

    \lstdefinelanguage{Test}
    {
        morekeywords = {), +, (},
        alsoletter={), +, (},
    }

    \lstset{
        keywordstyle=\color{red},
        breaklines=true % As soon as this is true highlighting for ) breaks
    }

    \begin{document}
    \begin{lstlisting}[language=Test]
    )
    +
    (
    A very long line that will get broken A very long line that will get broken A very long line that will get broken A very long line that will get broken
    \end{lstlisting}
    \end{document}

Is it me doing something wrong or is this a problem with the package?

Answer 1

Here are two solutions. The first uses the beta package version 2 of listings and works out of the box. The second patches listings to avoid the problem. Both use Marco's suggestion of using literate.

Solution with listings2

\documentclass{article}
\usepackage{listings2}
\usepackage{xcolor}

\lstset{
    literate={)}{{{\color{red})}}}1 {(}{{{\color{red}(}}}1 {+}{{{\color{red}+}}}1,
    keywordstyle=\color{red},
    breaklines=true
}

\begin{document}
\begin{lstlisting}
)
+
(
A very long line that (will) get broken A very long line that will get broken A very long line that will get broken A very long line that will get broken 
\end{lstlisting}
\end{document}

Notice however that there are a few syntaxic changes between listings and listings2, so you will have to adapt parts of your code.

Solution by patching listings

By removing \lst@ifbreaklines \lst@Def{`)}{\lst@breakProcessOther)}\fi from listings's SelectCharTable hook, the problem disappears (it should not have any side effect):

\documentclass{article}
\usepackage{listings}
\usepackage{xcolor}
\usepackage{xstring}

\makeatletter
\noexpandarg % to not expand arguments of \StrSubstitute
\expandafter\StrSubstitute\expandafter{\lsthk@SelectCharTable}{\lst@ifbreaklines \lst@Def{`)}{\lst@breakProcessOther)}\fi}{}[\lsthk@SelectCharTable]
\makeatother

\lstset{
    literate={)}{{{\color{red})}}}1 {(}{{{\color{red}(}}}1 {+}{{{\color{red}+}}}1,
    keywordstyle=\color{red},
    breaklines=true
}

\begin{document}
\begin{lstlisting}
)
+
(
A very long line that (will) get broken A very long line that will get broken A very long line that will get broken A very long line that will get broken 
\end{lstlisting}
\end{document}

I've used xstring to do the substitution.