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如何将源文本和格式化文本的顶部框架边缘与同一水平线对齐？

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如何将源文本和格式化文本的顶部框架边缘与同一水平线对齐？

下面的代码我后面在提问的时候会多次提到，需要打补丁才能让源代码和格式化文本的框架都在文本宽度之内。

\documentclass{article}
\usepackage[showframe=false,a5paper,margin=1cm]{geometry}

\usepackage{showexpl,xcolor,caption}
\captionsetup
{
        margin=5mm,
        font={color=blue,rm,scriptsize},
        labelfont={color=magenta,bf},
        justification=justified,
        labelsep=quad
}

\usepackage{etoolbox}
\makeatletter
\patchcmd{\SX@codeInput}{xleftmargin=0pt,xrightmargin=0pt}{}
  {\typeout{***Successfully patched \protect\SX@codeInput***}}
  {\typeout{***ERROR! Failed to patch \protect\SX@codeInput***}}
\makeatother

\lstset
{
    language={[LaTeX]TeX},   
    breaklines=true,
    basicstyle=\scriptsize\ttfamily,
    keywordstyle=\color{blue}\sffamily\bfseries,                                   
    backgroundcolor=\color{yellow!10},
    frame=single,
    rulecolor=\color{red},
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    % the following must be defined to make hacking work.
    xleftmargin=\dimexpr\fboxsep+\fboxrule\relax, 
    xrightmargin=\dimexpr\fboxsep+\fboxrule\relax,
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    vsep=2\fboxsep,
    explpreset={}%must be called even if empty
}

\newcommand\dummy
{%
    Anger is a condition in which the tongue works faster than the mind \ldots
}

\parindent=0pt

\begin{document}
\dummy
\begin{LTXexample}[caption=\dummy]
\dummy
\[E\not=mc^2\]
\end{LTXexample}
\dummy
\end{document}

问题

其余 3 个问题已被删除，只剩下以下问题来支持 Herbert 提供的答案。使用編輯歷史按钮查看原文。

在并排模式（pos=l或pos=r）下，如何将顶部框架与同一水平线对齐？

赫伯特的回答aboveskip=\dimexpr\fboxsep+\fboxrule\relax将解答这个问题。

答案1

像你这样修补命令是没有意义的。但是，让两者对齐，在前言中插入：

\makeatletter
    
\renewcommand\SX@ResultArea[2]{%
      
  \SX@justification\setlength\@tempdima{#1}%
      
  \parbox[t]\@tempdima{\vspace{0pt}#2}}
    
\renewcommand\SX@CodeArea[2]{%
      
  \setlength\@tempdima{#1}%
      
  \sbox\@tempboxa{\parbox[t]\@tempdima{\vspace{0pt}#2}}%
      
  \@tempdima=\dp\@tempboxa\usebox\@tempboxa
      
  \rlap{\raisebox{-\@tempdima}[0pt][0pt]{\SX@attachfile}}}
    
\makeatother


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