如何在 tcolorbox 框架中每个分页符的顶部设置框架标题

Question

我正在尝试编写一个 LaTeX 设置来重现a2ps显示源代码的方式。以下是此类布局的示例：

目前，我尝试使用 tcolorbox 来构建这样的布局。这是我做的一个简化的尝试：

\documentclass[a4paper,7pt,landscape,twocolumn]{article}

%% Build with: pdflatex -shell-escape example.tex

%% Font packages
\usepackage{lmodern}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

%% Minted
\usepackage{minted}

\usepackage[many]{tcolorbox}
\tcbuselibrary{listings}
\tcbuselibrary{minted}


%% Display the file 'filename' (possibly on several pages) and
%% highlight the syntax for the programming language 'language' as for
%% minted. The filename displayed can optionally be changed.
%%
%% \codeinput[displayed_name]{filename}{language}
%%
\newtcbinputlisting{\codeinput}[3][]{%
  title={\large\bfseries\tt%
    \if\relax\detokenize{#1}\relax{#2}\else{#1}\fi},
  listing engine=minted,
  minted options={autogobble,breaklines},
  minted language=#3,
  listing file={#2},
  listing only,
  size=title,
  breakable,
  height fill,
  enhanced,
  overlay first={\draw[line width=.75pt](frame.south west)--(frame.south east);},
  overlay middle={\draw[line width=.75pt](frame.south west)--(frame.south east);%
                  \draw[line width=.75pt](frame.north west)--(frame.north east);},
  overlay last={\draw[line width=.75pt](frame.north west)--(frame.north east);},
  colframe=black,
  colbacktitle=lightgray!85,
  coltitle=black,
  boxrule=.75pt,
  colback=white,
  coltext=black
}

\begin{document}
%% Display the source file
\codeinput[libtrie/src/trie.c]{./trie.c}{c}
\end{document}

并且，编译后我得到以下结果：

我有两个问题：

1. 我们如何才能在每个新分页符的顶部重复框架标题？

2. 一个小的视觉错误是可拆分页面的第一页的高度略小于后面的页面。如果有人知道它来自哪里以及如何修复它，那就太好了！

Answer 1

我终于找到了答案（花了我很长时间，所以我将在这里解释它以节省其他人的时间）。

因此，要考虑的正确选项是title after break=<Title>。事实上，它确实达到了预期的效果。如果我们以最初的最小示例为例：

\documentclass[a4paper,landscape,twocolumn]{article}

%% Build with: pdflatex -shell-escape example.tex

%% Font packages
\usepackage{lmodern}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

%% Minted
\usepackage{minted}

\usepackage[many]{tcolorbox}
\tcbuselibrary{listings}
\tcbuselibrary{minted}


%% Display the file 'filename' (possibly on several pages) and
%% highlight the syntax for the programming language 'language' as for
%% minted. The filename displayed can optionally be changed.
%%
%% \codeinput[displayed_name]{filename}{language}
%%
\newtcbinputlisting{\codeinput}[3][]{%
  title={\large\bfseries\tt%
    \if\relax\detokenize{#1}\relax{#2}\else{#1}\fi},
  title after break={\large\bfseries\tt%
    \if\relax\detokenize{#1}\relax{#2}\else{#1}\fi},
  listing engine=minted,
  minted options={autogobble,breaklines},
  minted language=#3,
  listing file={#2},
  listing only,
  size=title,
  breakable,
  height fill,
  enhanced,
  overlay first={\draw[line width=.75pt](frame.south west)--(frame.south east);},
  overlay middle={\draw[line width=.75pt](frame.south west)--(frame.south east);%
                  \draw[line width=.75pt](frame.north west)--(frame.north east);},
  overlay last={\draw[line width=.75pt](frame.north west)--(frame.north east);},
  colframe=black,
  colbacktitle=lightgray!85,
  coltitle=black,
  boxrule=.75pt,
  colback=white,
  coltext=black
}

\begin{document}
%% Display the source file
\codeinput[libtrie/src/trie.c]{./trie.c}{c}
\end{document}

正如预期，我们得到：

还要注意，第一页和第二页之间的微小偏移也消失了。