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无法定义命令来自动构建目录树复杂项

tag-icon • tag-icon macros dirtree
无法定义命令来自动构建目录树复杂项

我能够使用 dirtree 手动在 LaTeX 中生成复杂的树项（请参阅下面的 MWE）。为了避免代码重复，我尝试在 LaTeX 命令中设置每个树项的声明。但是，我得到了错误! Use of \next doesn't match its definition.

预期结果如下：

预期结果

以下是不使用命令的最小工作示例（MWE）：

\documentclass[8pt]{scrartcl}

\usepackage{dirtree}
\usepackage{floatrow}
\usepackage{blindtext}

\thisfloatsetup{%
objectset=raggedright,
}
\begin{document}
\dirtree{%
    .1 node1 \hfill \begin{minipage}[t]{1cm}
    { }
    \end{minipage} \hfill \begin{minipage}[t]{3.5cm}
    long comment multiline line number 1
    \end{minipage}.
    .2 node2 \hfill \begin{minipage}[t]{1cm}
    type 0
    \end{minipage} \hfill \begin{minipage}[t]{3.5cm}
    long comment multiline line number 2
    \end{minipage}.
    .3 leaf1 \hfill \begin{minipage}[t]{1cm}
    type 1
    \end{minipage} \hfill \begin{minipage}[t]{3.5cm}
    long comment multiline line number 3
    \end{minipage}.
    .3 leaf2 \hfill \begin{minipage}[t]{1cm}
    type 1
    \end{minipage} \hfill \begin{minipage}[t]{3.5cm}
    long comment multiline line number 4
    \end{minipage}.
    .2 node3 \hfill \begin{minipage}[t]{1cm}
    type 0
    \end{minipage} \hfill \begin{minipage}[t]{3.5cm}
    very very very very long comment multiline line number 5
    \end{minipage}.
    .3 leaf3 \hfill \begin{minipage}[t]{1cm}
    type 2
    \end{minipage} \hfill \begin{minipage}[t]{3.5cm}
    long comment multiline line number 6
    \end{minipage}.
    .3 leaf4 \hfill \begin{minipage}[t]{1cm}
    {}
    \end{minipage} \hfill \begin{minipage}[t]{3.5cm}
    no type specified
    \end{minipage}.
}
\end{document}

这里尝试定义一个命令\treedef以避免重复冗余代码

\documentclass[8pt]{scrartcl}

\usepackage{dirtree}
\usepackage{floatrow}
\usepackage{blindtext}

% #1: Level
% #2: Name
% #3: Type
% #4: Comment
\newcommand{\treedef}[4]{
    .{#1} {#2} \hfill \begin{minipage}[t]{1cm}
    {#3}
    \end{minipage} \hfill \begin{minipage}[t]{3.5cm}
    {#4}
    \end{minipage}.
}

\thisfloatsetup{%
objectset=raggedright,
}
\begin{document}
\dirtree{%
    \treedef{1}{node1}{}{long comment multiline line number 1}
    \treedef{2}{node2}{type 0}{long comment multiline line number 2}
    \treedef{3}{leaf1}{type 1}{long comment multiline line number 3}
    \treedef{3}{leaf2}{type 1}{long comment multiline line number 4}
    \treedef{2}{node3}{type 0}{very very very very long comment multiline line number 5}
    \treedef{3}{leaf3}{type 2}{long comment multiline line number 6}
    \treedef{3}{leaf4}{}{no type specified}
}

\end{document}

答案1

\documentclass[8pt]{scrartcl}

\usepackage{dirtree}
\usepackage{floatrow}
\usepackage{blindtext}
\usepackage{etoolbox}

% #1: Level
% #2: Name
% #3: Type
% #4: Comment

\newcommand{\treedef}[4]{%
    \appto\dirtreecode{%  ← must have no space at the beginning
    .#1 #2 \hfill \begin{minipage}[t]{1cm}
    #3
    \end{minipage} \hfill \begin{minipage}[t]{3.5cm}
    #4
    \end{minipage}. % ← must have a space here
    }%
}

\thisfloatsetup{%
objectset=raggedright,
}

\begin{document}

\def\dirtreecode{}
\treedef{1}{node1}{}{long comment multiline line number 1}
\treedef{2}{node2}{type 0}{long comment multiline line number 2}
\treedef{3}{leaf1}{type 1}{long comment multiline line number 3}
\treedef{3}{leaf2}{type 1}{long comment multiline line number 4}
\treedef{2}{node3}{type 0}{very very very very long comment multiline line number 5}
\treedef{3}{leaf3}{type 2}{long comment multiline line number 6}
\treedef{3}{leaf4}{}{no type specified}
%\show\dirtreecode  % execute this if you want to see what is going to be put inside \dirtree{...}
\expandafter\dirtree\expandafter{\dirtreecode}

\end{document}

我忽略了“水平盒子未满”错误消息，因为它们不是这里的主要问题。

基本上，代码使用 构建整个“主体” \appto，然后将其传递给\dirtree使用\expandafter。

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