4

I'm using the listings package to insert MatLab routines that I've created for some papers I need to write. Everything works awesome, except the symbol % (comment in MatLab) which overlaps with the next character. Below there's an image that shows this phenomenon.

enter image description here

And the MWE showing the problem is attached below:

\documentclass[letterpaper,12pt,openany,final]{memoir}
\usepackage[utf8x]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{graphicx} %Gráficos
\usepackage[top=4cm,right=2.5cm,left=3cm, bottom=3cm]{geometry}
\usepackage{ucs}
\usepackage{xcolor}
\usepackage{color,calc,graphicx,soul}
\usepackage{float}
 \usepackage{rotating}
 \usepackage{parskip}
\usepackage{mathptmx}%Fuente
\usepackage{epstopdf}

\setlength{\evensidemargin}{\oddsidemargin}


\title{Lorem Ipsum}
\author{DOlor Sit amet}


\usepackage{textcomp}
\usepackage{listingsutf8}
\renewcommand\lstlistingname{Código}
\renewcommand\lstlistlistingname{Índice de Códigos Fuente}


\lstset{
    backgroundcolor=\color{white},
    tabsize=4,
    rulecolor=,
    literate={ó}{{'o}}1
         {á}{{'a}}1
         {é}{{'e}}1
         {º}{{\textdegree}}1
         {ú}{{'u}}1,
    escapeinside={%}{)},
    language=octave,
        basicstyle=\scriptsize,
        numberstyle=\tiny,
        upquote=true,
        aboveskip={1.5\baselineskip},
        columns=fixed,
        showstringspaces=false,
        extendedchars=true,
        breaklines=true,
        prebreak = \raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
        frame=single,
        showtabs=false,
        name=Feedservoplot
        showspaces=false,
        texcl=false,
        inputencoding=latin1,
        numbers=left,
        firstnumber=auto,
    showstringspaces=false,
        identifierstyle=\ttfamily,
        keywordstyle=\color[rgb]{0,0,1},
        commentstyle=\color[rgb]{0.133,0.545,0.133},
        stringstyle=\color[rgb]{0.627,0.126,0.941},
        escapeinside={(@}{@)}
}


\usepackage[protrusion=true,expansion=true]{microtype}  %Alineado óptico
\usepackage{amssymb}
\usepackage{amsmath}


\usepackage[activeacute,spanish] {babel}
\renewcommand\shorthandsspanish{}
\renewcommand{\arraystretch}{1.2}
\clubpenalty=10000
\widowpenalty=10000
\setcounter{tocdepth}{2}
\setcounter{secnumdepth}{2}
\setcounter{lofdepth}{2}
\usepackage[]{hyperref}
\usepackage{memhfixc}
\begin{document}
\setcounter{chapter}{1}


\setlength{\evensidemargin}{\oddsidemargin}


\chapter{Lorem ipsum}


Lorem ipsum dolor sit amet:


\begin{lstlisting}
a%
\end{lstlisting}


\begin{equation}
\frac{d}{dt} \frac{\partial \mathcal{L}}{\partial \dot{q_i}}
\end{equation} 
\begin{equation}
 a<0
\end{equation}


\end{document}

Any suggestions? Thanks in advance.

Best regards,

Charlie

PS: I must say that I don't know if this happens with other prog. languages.

Community
  • 1
Charlie
  • 1,135

1 Answers1

4

The problem comes from the a bad interaction with the spanish module for babel, as the following MWE shows:

\documentclass{memoir}
\usepackage[spanish]{babel}
\usepackage{listingsutf8}
\spanishplainpercent

\begin{document}

\begin{lstlisting}
%A
%a
%b
\end{lstlisting}

\end{document}

enter image description here

The spanish module makes osme special treatment for the percentage symbol and this produces the undesired result. Using \spanishplainpercent solves the problem: 

\documentclass{memoir}
\usepackage[spanish]{babel}
\usepackage{listingsutf8}
\spanishplainpercent

\begin{document}

\begin{lstlisting}
%A
%a
%b
\end{lstlisting}

\end{document}

enter image description here

If for other parts of your document you want to keep the fine space that the module introduces for the percentage symbol, you can do the following:

\documentclass{memoir}
\usepackage[spanish]{babel}
\usepackage{listingsutf8}

\makeatletter
\def\spanishplainpercent{\let\es@sppercent\@empty}
\def\spanishpercent{\def\es@sppercent{\unskip\textormath{$\m@th\,$}{\,}}}
\makeatother

\begin{document}

8\%

\spanishplainpercent 8\%
\begin{lstlisting}
%A
%a
%b
\end{lstlisting}
\spanishpercent

8\%

\end{document}

enter image description here

\spanishplainpercent deactivates the fine space (and solves the problem with listings) and \spanishpercent activates the space.

This can be done automatically using the etoolbox package:

\usepackage{etoolbox}

\makeatletter
\def\spanishplainpercent{\let\es@sppercent\@empty}
\def\spanishpercent{\def\es@sppercent{\unskip\textormath{$\m@th\,$}{\,}}}
\makeatother

\AtBeginEnvironment{lstlisting}{\spanishplainpercent}
\AtEndEnvironment{lstlistings}{\spanishpercent}
Gonzalo Medina
  • 505,128
  • It says "undefined control sequence \spanishplainpercent". Maybe I have to install more texlive packages. Any suggestions? – Charlie Jul 07 '13 at 23:36
  • @Charlie Most probably your LaTeX installation is outdated. Update your LaTeX system. – Gonzalo Medina Jul 07 '13 at 23:38
  • 1
    @Charlie before attempting the updating, please try the new code in my updated answer and see if this new code works with your system; if not, you'll need the updating. – Gonzalo Medina Jul 07 '13 at 23:40
  • But it's the latex that came with Ubuntu 13.04. :O – Charlie Jul 07 '13 at 23:40
  • @Charlie and what version of the spanish module for babel does your system use? as far as I know the LaTeX systems that ship with the Linux distros are not the most recent ones. – Gonzalo Medina Jul 07 '13 at 23:44
  • @Charlie just to make sure. You are using \spanishplainpercent after loading babel, right? – Gonzalo Medina Jul 07 '13 at 23:49
  • Now it works @Gonzalo, thanks! This was for me an unanswered question for years! :) BTW, yes, I'm doing it after babel! Thanks :) – Charlie Jul 08 '13 at 01:39
  • 1
    @Charlie You're welcome! I wrote a little message to Javier Bezos (the author of the spanish module) about this issue. Let's wait for his answer/comments. – Gonzalo Medina Jul 08 '13 at 02:06