I've got some Fortran 90 source code I want to put into my thesis appendix. For this I'm using the listings package. Is it possible to have colored syntax highlighting for the Fortran code?
[Tex/LaTex] Fortran syntax highlighting in listings
codecolorformattinghighlightinglistings
Related Solutions
It's almost a year later, but as the OP has not yet accepted an answer, I still see my chance :-)
In the following, I use the same basic principle as in my other answer, that is, employ listings moredelim=** option to define delimiters, which styles then apply on top of all other formattings, so that the syntax formatting is kept.
However, instead of being limited to a standard font command for the delimiter style, I now use an lrbox to grab the content of the current group. The resulting box holds the (syntax-formatted) output of listings, which can be used to implement more fancy highlighting styles.
In the example code, the implementation of the \btHL command employs TikZ to typeset the lrbox into a TikZ node. Additional TikZ/PGF options to both, the tikzpicture and the node can be given in the optional argument (such as \btHL[fill=red!20,draw=red]), which provides for pretty flexible highlighters.
(Note: when the optional argument is used inside some listings argument, the whole \btHL[<key>=<value>,...] command has to be put into curly braces in order to not confuse the listings key=value parser.)
The \btHL command can as well be used inside normal text. It does, however, not work across line breaks, which is a possible disadvantage compared to the approach that culminated from Bens answer. Insides of listings, however, this usually is not an issue.
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{listings,xcolor,beramono}
\usepackage{tikz}
\makeatletter
\newenvironment{btHighlight}[1][]
{\begingroup\tikzset{bt@Highlight@par/.style={#1}}\begin{lrbox}{\@tempboxa}}
{\end{lrbox}\bt@HL@box[bt@Highlight@par]{\@tempboxa}\endgroup}
\newcommand\btHL[1][]{%
\begin{btHighlight}[#1]\bgroup\aftergroup\bt@HL@endenv%
}
\def\bt@HL@endenv{%
\end{btHighlight}%
\egroup
}
\newcommand{\bt@HL@box}[2][]{%
\tikz[#1]{%
\pgfpathrectangle{\pgfpoint{1pt}{0pt}}{\pgfpoint{\wd #2}{\ht #2}}%
\pgfusepath{use as bounding box}%
\node[anchor=base west, fill=orange!30,outer sep=0pt,inner xsep=1pt, inner ysep=0pt, rounded corners=3pt, minimum height=\ht\strutbox+1pt,#1]{\raisebox{1pt}{\strut}\strut\usebox{#2}};
}%
}
\makeatother
\lstdefinestyle{SQL}{
language={SQL},basicstyle=\ttfamily,
moredelim=**[is][\btHL]{`}{`},
moredelim=**[is][{\btHL[fill=green!30,draw=red,dashed,thin]}]{@}{@},
}
\begin{document}
A listing with {\btHL highlighting of all \textbf{important} elements} looks as follows:
\begin{lstlisting}[style=SQL]
SELECT name, password `FROM` users @WHERE@ name=@UNION SELECT@
\end{lstlisting}
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[scaled=0.82]{beramono}
\usepackage{listings,xcolor}
\begin{document}
\begin{lstlisting}[basicstyle=\small\ttfamily,language={[LaTeX]TeX},
texcsstyle=*\color{red}\bfseries,
keywordstyle=\color{blue}\bfseries,
morekeywords=alignat,moretexcs=intertext]
\begin{alignat*}{4}
y &= -4 &+ 3 &+4 &-7 \\
y &= &+ 3 & &-7 \\
\intertext{Therefore}
a &= b &d &= cccc &e &= d \\
a &= bbbb &d &= c &e &= d
\end{alignat*}
\end{lstlisting}
\end{document}
Best Answer
You have to set the language and the kind of highlighting, e.g.
For more information about the used settings with
\lstsetsee the manual of listings package.BTW: There are several alternative packages for syntax highlighting. With fortran there seems to be even a package to print Fortran programs. But I've never used this, it cannot be used for syntax highlighting and was made to be used with plainTeX. So maybe if you want to try an alternative, e.g., highlight would be ab better suggestion.