kerninglistingsMATLAB
I'm trying to display matlab code in a LaTeX document and the comments are typeset with an ugly space between letters:
\documentclass{article}
\usepackage{listings}
\lstset{language=Matlab}
\lstset{tabsize=2}
\begin{document}
\begin{lstlisting}
function gramschmidt(A) %The columns of A are the initial basis to the subspace
\end{lstlisting}
\end{document}
results in 
Is there a way to improve the kerning (or whatever its called) of the text in the comments?
Are you after something like this? I have provided new keys:
widthgobble, which takes as an argument #tabs*#tabsizefirstlineandnumber, which sets both firstline and firstnumberNote that I had some trouble using the * syntax for setting the length of \gobble so have implemented an ugly workaround (which currently means that the argument to widthgobble should always have two numbers separated by an asterisk):
\documentclass{article}
\usepackage{listings}
\usepackage{filecontents}
\begin{filecontents*}{hello1.c}
if (a<b){
if (b<a){
//do something
}
}
\end{filecontents*}
\errorcontextlines=\maxdimen
\lstset{tabsize=3,numbers=left,frame=single,basicstyle=\Huge\ttfamily,columns=flexible}
\newlength{\rawgobble}
\newlength{\gobble}
\newlength{\gobblea}
% The width of a single space. basicstyle from lstset should be used
\sbox0{\Huge\ttfamily \ }
% Remove a single space
\settowidth{\rawgobble}{\Huge\ttfamily \ }
\setlength{\rawgobble}{-\rawgobble}
\makeatletter
\def\sepstar#1*#2\relax{%
\def\sepstarone{#1}%
\def\sepstartwo{#2}%
}
\lst@Key{firstlineandnumber}\relax{\def\lst@firstline{#1\relax}\def\lst@firstnumber{#1\relax}}
\lst@Key{widthgobble}{0*0}{%
% Reindent a bit by multiplying with 0.9, then multiply by tabsize and number of indentation levels
\sepstar #1\relax
\setlength{\gobble}{0.9\rawgobble}%
\setlength{\gobble}{\sepstarone\gobble}%
\setlength{\gobble}{\sepstartwo\gobble}%
\setlength{\gobblea}{\gobble}%
\addtolength{\gobblea}{10pt}%
\def\lst@xleftmargin{\gobble}%
\def\lst@framexleftmargin{\gobble}%
\def\lst@numbersep{\gobblea}%
}
\makeatother
\begin{document}
%widthgobble=#tabs*#tabsize,firstlineandnumber sets firstline and firstnumber
\lstinputlisting[widthgobble=1*3,firstlineandnumber=2,lastline=4]{hello1.c}
\end{document}
As @jubobs commented, Listings treats language and style separately.
"string in quotation marks" and //comment after double slashes.Go back to your question, a stylish setting is permanent unless you issue another stylish setting or the current group terminates. Similarly, a language assignment is permanent unless you assign another language, the current group terminates, or you issue a stylish setting that contains a language assignment.
In conclusion, perhaps the most systematic way to manage both language and style is to define an exhaustive style that contains a language assignment together with its associated stylish setting. (Just like a language-IDE pair.) And now you can switch between IDEs styles and the no-style-at-all style.
\documentclass{minimal}
\usepackage{listings,xcolor}
\begin{document}
\lstdefinestyle{my IDE setting}{
language=Asymptote,
identifierstyle=\color{purple}
}
\lstdefinelanguage{Asymptote}{
keywords={draw,fill},
morecomment=[l]{//}
}
\lstset{style=my IDE setting}
\lstinline{123 hello world 456}
\lstset{style=}
\lstinline{123 hello world 456}
\end{document}
Best Answer
It looks better with