Created
September 20, 2018 06:12
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\documentclass{beamer} | |
\usepackage{xcolor,listings, pgffor} | |
\makeatletter | |
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
% | |
% \btIfInRange{number}{range list}{TRUE}{FALSE} | |
% | |
% Test if int number <number> is element of a (comma separated) list of ranges | |
% (such as: {1,3-5,7,10-12,14}) and processes <TRUE> or <FALSE> respectively | |
\newcount\bt@rangea | |
\newcount\bt@rangeb | |
\newcommand\btIfInRange[2]{% | |
\global\let\bt@inrange\@secondoftwo% | |
\edef\bt@rangelist{#2}% | |
\foreach \range in \bt@rangelist {% | |
\afterassignment\bt@getrangeb% | |
\bt@rangea=0\range\relax% | |
\pgfmathtruncatemacro\result{ ( #1 >= \bt@rangea) && (#1 <= \bt@rangeb) }% | |
\ifnum\result=1\relax% | |
\breakforeach% | |
\global\let\bt@inrange\@firstoftwo% | |
\fi% | |
}% | |
\bt@inrange% | |
} | |
\newcommand\bt@getrangeb{% | |
\@ifnextchar\relax% | |
{\bt@rangeb=\bt@rangea}% | |
{\@getrangeb}% | |
} | |
\def\@getrangeb-#1\relax{% | |
\ifx\relax#1\relax% | |
\bt@rangeb=100000% \maxdimen is too large for pgfmath | |
\else% | |
\bt@rangeb=#1\relax% | |
\fi% | |
} | |
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
% | |
% \btLstHL<overlay spec>{range list} | |
% | |
\newcommand<>{\btLstHL}[1]{% | |
\only#2{\btIfInRange{\value{lstnumber}}{#1}{\color{blue!30}}{}}% | |
}% | |
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
% | |
% \btInputEmph<overlay spec>[listing options]{range list}{file name} | |
% | |
\newcommand<>{\btLstInputEmph}[3][\empty]{% | |
\only#4{% | |
\lstset{linebackgroundcolor=\btLstHL{#2}}% | |
\lstinputlisting{#3}% | |
}% \only | |
} | |
\makeatletter | |
\let\old@lstKV@SwitchCases\lstKV@SwitchCases | |
\def\lstKV@SwitchCases#1#2#3{} | |
\makeatother | |
\usepackage{lstlinebgrd} | |
\makeatletter | |
\let\lstKV@SwitchCases\old@lstKV@SwitchCases | |
\lst@Key{numbers}{none}{% | |
\def\lst@PlaceNumber{\lst@linebgrd}% | |
\lstKV@SwitchCases{#1}% | |
{none:\\% | |
left:\def\lst@PlaceNumber{\llap{\normalfont | |
\lst@numberstyle{\thelstnumber}\kern\lst@numbersep}\lst@linebgrd}\\% | |
right:\def\lst@PlaceNumber{\rlap{\normalfont | |
\kern\linewidth \kern\lst@numbersep | |
\lst@numberstyle{\thelstnumber}}\lst@linebgrd}% | |
}{\PackageError{Listings}{Numbers #1 unknown}\@ehc}} | |
\makeatother | |
\begin{document} | |
\begin{frame}[fragile]{Problem} | |
Test programme: | |
\begin{lstlisting}[language=C, gobble=4, linebackgroundcolor={% | |
\btLstHL<1>{1,3,5-6}% | |
\btLstHL<2>{4}% | |
}] | |
#include <stdio.h> | |
int main(void) {% | |
printf("Hello World!"); | |
return 0; | |
} | |
\end{lstlisting} | |
\end{frame} | |
\end{document} |
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It works now after removal lstlinebgrd package! Thanks a million!