lstlinebgrd 软件包在更新后出现的最新问题

Question

这个问题是之前问题的延续问题其中，它已被修改为在几行代码中包含背景颜色和linebackground颜色。MWE 如下所示：

\documentclass{beamer}

\usepackage{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}%
%   },
    backgroundcolor=\color{gray!10}
]
    #include <stdio.h>

    int main(void) {%
    printf("Hello World!");  
        return 0;
    }
\end{lstlisting}
\end{frame}
\end{document}

此 MWE [背景颜色键除外] 由@moewe。现在当我同时使用两个键：linebackgroundcolor和时backgroundcolor，颜色选项backgroundcolor停止工作。我尝试联系软件包的作者，但没有成功。请提供任何解决方法的建议。

Answer 1

背景颜色原则上工作正常，问题在于您使用的突出显示宏不仅填充要突出显示的线条，还用白色填充所有其他线条，从而掩盖了灰色背景。

\btLstHL作为一种解决方法，您可以按以下示例进行调整：

\documentclass{beamer}

\usepackage{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}}{\color{gray!20}}}%
}%


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  % \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}%
   },
    backgroundcolor=\color{gray!20}
]
    #include <stdio.h>

    int main(void) {%
    printf("Hello World!");  
        return 0;
    }
\end{lstlisting}
\end{frame}
\end{document}