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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /macros/latex/contrib/diagbox
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-rw-r--r--macros/latex/contrib/diagbox/diagbox.dtx1124
-rw-r--r--macros/latex/contrib/diagbox/diagbox.ins58
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diff --git a/macros/latex/contrib/diagbox/README b/macros/latex/contrib/diagbox/README
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+The diagbox package
+
+Copyright (C) 2011--2016 by Leo Liu <leoliu.pku@gmail.com>
+
+The diagbox package is used for making table heads with diagonal lines.
+And it is compatible with old slashbox package with many improvements.
+
+This work is released under the LPPL v1.3c or later.
+
+The project is hosted on https://github.com/leo-liu/tex-pkg
diff --git a/macros/latex/contrib/diagbox/diagbox.dtx b/macros/latex/contrib/diagbox/diagbox.dtx
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+% \iffalse meta-comment
+%
+% Copyright (C) 2011--2016 by Leo Liu <leoliu.pku@gmail.com>
+% ---------------------------------------------------------------------------
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3
+% of this license or (at your option) any later version.
+% The latest version of this license is in
+% http://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status `maintained'.
+%
+% The Current Maintainer of this work is Leo Liu.
+%
+% This work consists of the files diagbox.dtx and diagbox.ins
+% and the derived filebase diagbox.sty.
+%
+% \fi
+%
+% \iffalse
+%<*driver>
+\ProvidesFile{diagbox.dtx}
+%</driver>
+%<package>\NeedsTeXFormat{LaTeX2e}[1999/12/01]
+%<package>\ProvidesPackage{diagbox}
+%<*package>
+ [2016/12/28 v2.2 Making table heads with diagonal lines]
+%</package>
+%
+%<*driver>
+\documentclass[letterpaper]{ltxdoc}
+\AtBeginDocument{
+ \DeleteShortVerb{\|}
+ \MakeShortVerb{\"}}
+\usepackage{diagbox}
+\usepackage{xcolor}
+\usepackage[left=1.7in,top=1in,bottom=1in]{geometry}
+\usepackage{fvrb-ex}
+\usepackage{amsmath}
+\usepackage[UTF8]{ctex}
+\makeatletter
+\renewcommand\glossary@prologue{%
+ \section*{版本历史}
+ \markboth{版本历史}{版本历史}}
+\renewcommand\index@prologue{%
+ \section*{Index / 代码索引}
+ \markboth{Index / 代码索引}{Index / 代码索引}
+ 斜体的数字表示对应项说明所在的页码。下划线的数字表示定义所在的代码行号;而直
+ 立体的数字表示对应项使用时所在的行号。}
+\renewcommand*\title[2][]{\gdef\@title{#2}}
+\renewcommand*\author[2][]{\gdef\@author{#2}}
+\providecommand\eTeX{$\m@th\varepsilon$-\TeX}
+\makeatother
+\usepackage[numbered]{hypdoc}
+\hypersetup{pdfstartview=FitH}
+\EnableCrossrefs
+\CodelineIndex
+\RecordChanges
+\begin{document}
+ \DocInput{diagbox.dtx}
+ \PrintChanges
+ \PrintIndex
+\end{document}
+%</driver>
+% \fi
+%
+% \CheckSum{612}
+%
+% \CharacterTable
+% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+% Digits \0\1\2\3\4\5\6\7\8\9
+% Exclamation \! Double quote \" Hash (number) \#
+% Dollar \$ Percent \% Ampersand \&
+% Acute accent \' Left paren \( Right paren \)
+% Asterisk \* Plus \+ Comma \,
+% Minus \- Point \. Solidus \/
+% Colon \: Semicolon \; Less than \<
+% Equals \= Greater than \> Question mark \?
+% Commercial at \@ Left bracket \[ Backslash \\
+% Right bracket \] Circumflex \^ Underscore \_
+% Grave accent \` Left brace \{ Vertical bar \|
+% Right brace \} Tilde \~}
+%
+%
+% \changes{v1.0}{2011/11/21}{初始版本。}
+%
+% \DoNotIndex{\newcommand, \newenvironment, \@nameuse, \@pkgextension,
+% \@reserveda, \@tfor, \begin, \begingroup, \box, \csname, \def, \define@key,
+% \dimexpr, \do, \dp, \edef, \else, \end, \endcsname, \endgroup, \endinput,
+% \expandafter, \fi, \hbox, \ht, \ifcsname, \ifdim, \ifx, \Line, \makebox,
+% \newbox, \newdimen, \p@, \PackageError, \pkg, \put, \relax, \RequirePackage,
+% \setbox, \setkeys, \setlength, \strip@pt, \unexpanded, \unitlength,
+% \vcenter, \wd, \xdef, \z@, \@ifnextchar, \bgroup, \FPadd, \FPmul, \FPneg,
+% \FPsub, \FPupn, \let, \unless, \hspace}
+%
+% \providecommand*{\pkg}{\textsf}
+% \GetFileInfo{diagbox.dtx}
+% \title[diagbox Package (\fileversion):
+% Making Table Heads with Diagonal Lines]%
+% {\hypertarget{English}{\pkg{diagbox} Package (\fileversion)}
+% \makebox[0pt][l]{\hspace{3cm}\large
+% \hyperlink{Chinese}{$\Rightarrow$ \textsf{中文版}}}\\
+% Making Table Heads with Diagonal Lines}
+% \author[Leo Liu <leoliu.pku@gmail.com>]%
+% {Leo Liu \\ \path{leoliu.pku@gmail.com}}
+% \date{\filedate}
+%
+% \maketitle
+%
+% \section{Introduction}
+%
+% \pkg{diagbox} is a replacement of old \pkg{slashbox} package\footnote{By
+% Koichi Yasuoka and Toru Sato. Available on
+% \url{CTAN://macros/latex/contrib/slashbox/slashbox.sty}}. I write this
+% package simply because that \pkg{slashbox} is not available in \TeX\ Live
+% for licening problems. \pkg{slashbox} has no explicit license information
+% available, but \pkg{diagbox} is under LPPL.
+%
+% \pkg{diagbox} is a modern alternative of \pkg{slashbox}. I changed the
+% user interface to use a key-value syntax, get rid of some restrictions of
+% \pkg{slashbox}, use \pkg{pict2e} to draw diagonal lines. Especially, this
+% package also provides ability to make a box with two diagonal lines in it.
+% All these can be obtained by a "\diagbox" command.
+%
+% As a replacement of \pkg{slashbox}, \pkg{diagbox} package also provides
+% compatible macros of \pkg{slashbox}, but the result is a little different.
+%
+% To use \pkg{diagbox}, \eTeX{} is needed. And \pkg{diagbox} requires
+% \pkg{pict2e}, \pkg{keyval}, \pkg{calc}, and \pkg{fp} packages.
+%
+%
+% \section{Usage}
+%
+% \subsection{Basic usage}
+%
+% To load the package, just put this in the preamble:
+% \begin{Verbatim}
+% \usepackage{diagbox}
+% \end{Verbatim}
+%
+% \DescribeMacro{\diagbox}
+% "\diagbox" is the main command. It can take two arguments, to produce a box
+% with a diagonal line from north west to south east.
+%
+% For example:\\
+% \begin{SideBySideExample}[frame=single,numbers=left,xrightmargin=.45\linewidth]
+% \begin{tabular}{|l|ccc|}
+% \hline
+% \diagbox{Time}{Day} & Mon & Tue & Wed \\
+% \hline
+% Morning & used & used & \\
+% Afternoon & & used & used \\
+% \hline
+% \end{tabular}
+% \end{SideBySideExample}
+% \medskip
+%
+% "\diagbox" can also take three arguments, to draw a table head with two
+% diagbox lines. For example,
+% \begin{Example}[frame=single,numbers=left]
+% \begin{tabular}{|l|ccc|}
+% \hline
+% \diagbox{Time}{Room}{Day} & Mon & Tue & Wed \\
+% \hline
+% Morning & used & used & \\
+% Afternoon & & used & used \\
+% \hline
+% \end{tabular}
+% \end{Example}
+%
+% \subsection{More options}
+%
+% "\diagbox" can take a key-value list as an optional argument to specify the
+% width and height of the box, the direction of the diagonal line, and the
+% trimming margins:
+% \begin{description}
+% \item[width] Specify the width of the box explicitly. If it is omitted,
+% \pkg{diagbox} will calculate the width automatically.
+%
+% \item[height] Specify the height of the box explicitly. If it is omitted,
+% \pkg{diagbox} will calculate the height automatically. In the argument, one
+% can use "\line" as a line height.
+%
+% \item[dir] Specify the direction of the diagonal line. The value can be
+% "NW", "NE", "SW" and "SE". Default value is "NW". The meaning of the values
+% see below.
+% \begin{itemize}
+% \item "\diagbox[dir="\meta{direction}"]{A}{B}" in a table looks:\\
+% \begin{tabular}{ll@{\qquad}ll}
+% "NW" or "SE":&
+% \begin{tabular}{|c|} \hline \diagbox[dir=SE]{A}{B} \\\hline \end{tabular} &
+% "SW" or "NE":&
+% \begin{tabular}{|c|} \hline \diagbox[dir=NE]{A}{B} \\\hline \end{tabular}
+% \end{tabular}
+% \item "\diagbox[dir="\meta{direction}"]{A}{M}{B}" in a table looks:\\
+% \begin{tabular}{*4{ll@{\qquad}}}
+% "NW"&
+% \begin{tabular}{|c|} \hline \diagbox[dir=NW]{A}{M}{B} \\\hline \end{tabular}&
+% "NE"&
+% \begin{tabular}{|c|} \hline \diagbox[dir=NE]{A}{M}{B} \\\hline \end{tabular}&
+% "SW"&
+% \begin{tabular}{|c|} \hline \diagbox[dir=SW]{A}{M}{B} \\\hline \end{tabular}&
+% "SE"&
+% \begin{tabular}{|c|} \hline \diagbox[dir=SE]{A}{M}{B} \\\hline \end{tabular}
+% \end{tabular}
+% \end{itemize}
+%
+% \item[innerwidth] Specify the width of the inner content box. "innerwidth"
+% option is useful when specifying column width. For example:
+% \begin{Example}
+% \begin{tabular}{|p{2cm}|} \hline
+% \diagbox[innerwidth=2cm]{A}{B} \\ \hline
+% \end{tabular}
+% \end{Example}
+%
+% \item[innerleftsep, innerrightsep] Specify the distances between the border
+% of the inner content box and the border of the diagonal box. We have:
+% \[
+% "innerleftsep" + "innerwidth" + "innerrightsep" = "width".
+% \]
+% For example:
+% \begin{Example}
+% \begin{tabular}{|c|} \hline
+% \diagbox[innerleftsep=.5cm,innerrightsep=0pt]{A}{B} \\ \hline
+% \end{tabular}
+% \end{Example}
+%
+% \item[outerleftsep, outerrightsep] Specify the distances between the border
+% of the diagonal box and the border of the tabular cell. Usually they are
+% negative values, which satisfy
+% \begin{align*}
+% "outerleftsep" + "LEFTtabcolsep" &= 0\,\mathrm{pt}, \\
+% "outerrightsep" + "RIGHTtabcolsep" &= 0\,\mathrm{pt}.
+% \end{align*}
+% where "LEFTtabcolsep" and "RIGHTtabcolsep" are the distances between
+% verticle lines and the tabular cell content (the diagonal box). For example:
+% \begin{Example}
+% \begin{tabular}{|r@{\hspace{20pt}}|l|} \hline
+% \diagbox[outerrightsep=-20pt]{A}{B} & C \\ \hline
+% AABB & CC \\ \hline
+% \end{tabular}
+% \end{Example}
+%
+% \item[leftsep, rightsep] Specify the left and right distances, which are
+% equivalent to:
+% \begin{align*}
+% "innerleftsep" &:= "leftsep", & "innerrightsep" &:= "rightsep", \\
+% "outerleftsep" &:= -"leftsep", & "outerrightsep" &:= -"rightsep".
+% \end{align*}
+%
+% \item[trim] Specify the margin to be trimmed. The value can be "l", "r", and
+% "lr", "rl". This helps the slash line exceeds the boundary when "@{}" column
+% specifier is used.
+%
+% Note: "trim=l" has the same effect as "leftsep=0pt", and "trim=r" has the
+% same effect as "rightsep=0pt".
+%
+% \item[font] Specify the font of the cell.
+%
+% "\diagbox[font=\footnotesize\itshape]{Small}{Italic}"\quad
+% \begin{tabular}{|c|} \hline
+% \diagbox[font=\footnotesize\itshape]{Small}{Italic} \\ \hline
+% \end{tabular}
+%
+% \item[linewidth] Specify the line width of the diagonal lines.
+% \item[linecolor] Specify the line color of the diagonal lines. (\pkg{color}
+% or \pkg{xcolor} is needed.)
+%
+% "\diagbox[linewidth=2pt,linecolor=blue]{AAA}{BBB}"\quad
+% \begin{tabular}{|c|} \hline
+% \diagbox[linewidth=2pt,linecolor=blue]{AAA}{BBB} \\ \hline
+% \end{tabular}
+% \end{description}
+%
+% Here is a more complex example to show the usage of the options:
+% \begin{Example}[frame=single,numbers=left]
+% \begin{tabular}{|@{}l|c|c|r@{}|}
+% \hline
+% \diagbox[width=5em,trim=l]{Time}{Day} & Mon & Tue & Wed\\
+% \hline
+% Morning & used & used & used\\
+% \hline
+% Afternoon & & used & \diagbox[dir=SW,height=2em,trim=r]{A}{B} \\
+% \hline
+% \end{tabular}
+% \end{Example}
+%
+% \bigskip
+% What's more, you can use "\\" to break lines in "\diagbox". Manual setting
+% of the height of the head may be needed. For example,
+% \begin{Example}[frame=single,numbers=left]
+% \begin{tabular}{|c|}
+% \hline
+% \diagbox[height=3\line]{line\\heads}{column\\heads} \\
+% \hline
+% \end{tabular}
+% \end{Example}
+%
+% \subsection{Compatibility with \pkg{slashbox}}
+%
+% \pkg{diagbox} package emulates \pkg{slashbox} and also prevents
+% \pkg{slashbox} to be loaded.
+%
+% \pkg{diagbox} package provides "\slashbox" and "\backslashbox" which syntax
+% similar to \pkg{slashbox} package. However, the results of the two packages
+% are a little different. These two commands are for compatibility only, it is
+% better to use "\diagbox" instead for new documents.
+%
+% \DescribeMacro{\backslashbox}
+% "\backslashbox" works as "\diagbox", but it takes two optional arguments to
+% specify the "width" and "trim" options.
+%
+% \DescribeMacro{\slashbox}
+% "\slashbox" works as "\diagbox[dir=SW]", and takes two optional arguments to
+% specify the "width" and "trim" options.
+%
+% For example,\\
+% \begin{SideBySideExample}[frame=single,numbers=left,xrightmargin=.45\linewidth]
+% \begin{tabular}{|c|c|c|} \hline
+% \backslashbox[2cm]{num}{alpha}
+% & A & B \\\hline
+% 1 & A1 & B1 \\\hline
+% 2 & A2 & B2 \\\hline
+% \end{tabular}
+% \end{SideBySideExample}
+%
+%
+% \section{Known issues and TODO}
+%
+% Known issues:
+% \begin{itemize}
+% \item The result of "\slashbox" and "\backslashbox" is different with
+% \pkg{slashbox} package. The algorithms to calculate the width and height are
+% different; and the results of the second optional argument of "\slashbox"
+% (i.e. "trim" key in "\diagbox") in the two packages are differernt.
+%
+% This is not a bug. Usually the width calculated by \pkg{diagbox} is more
+% safe than \pkg{slashbox}.
+%
+% \item
+% The cell with "\diagbox" should be the widest one of the column. Otherwise
+% the slash line cannot exceeds the boundary. For example,\\[1ex]
+% \begin{SideBySideExample}[frame=single,numbers=left,xrightmargin=.45\linewidth]
+% \begin{tabular}{|c|} \hline
+% \diagbox{A}{B} \\\hline
+% Very long term \\\hline
+% \end{tabular}
+% \end{SideBySideExample}
+% \\[1ex]
+% This can be solved by setting a wider "width" option of "\diagbox" manually.
+% \end{itemize}
+%
+% TODO:
+% \begin{itemize}
+% \item
+% Improve the document of the source code. The algorithm of "\diagbox@triple"
+% should be explained in detail. However, the explanations would be only
+% available in Chinese, I'm sorry.
+% \end{itemize}
+%
+%
+% \title[]{\hypertarget{Chinese}{\pkg{diagbox} 宏包(\fileversion)}
+% \makebox[0pt][l]{\hspace{3cm}\large
+% \hyperlink{English}{$\Rightarrow$ \textsf{English Version}}}\\
+% 制做斜线表头}
+% \author{刘海洋 \\ \path{leoliu.pku@gmail.com}}
+% \date{\filedate}
+%
+% \maketitle
+%
+%
+% \section{简介}
+%
+% \pkg{diagbox} 设计用来代替旧的 \pkg{slashbox} 宏包\footnote{作者 Koichi
+% Yasuoka(安岡孝一)与 Sato Toru(佐藤徹)。宏包见
+% \url{CTAN://macros/latex/contrib/slashbox/slashbox.sty}。}。编写这个宏包的缘
+% 起是 \pkg{slashbox} 因为缺少明确的自由许可信息,被 \TeX\ Live 排除。这个宏包
+% 是在 LPPL 协议下发行的。
+%
+% \pkg{diagbox} 是 \pkg{slashbox} 宏包的一个现代的版本。它采用了新的 key-value
+% 式语法参数,去除了 \pkg{slashbox} 原有的一些长度限制,并调用 \pkg{pict2e} 宏
+% 包画斜线;特别还添加了绘制两条斜线的表头的新功能。
+%
+% 作为 \pkg{slashbox} 的代替,\pkg{diagbox} 除了提供自己的新命令,也提供了
+% \pkg{slashbox} 原有的两个命令,语法不变,编译结果略有区别。
+%
+% \pkg{diagbox} 依赖 \eTeX{} 扩展(这在目前总是可用的),依赖 \pkg{pict2e}、
+% \pkg{keyval}、\pkg{calc} 和 \pkg{fp} 宏包。
+%
+% \section{用法说明}
+%
+% \subsection{基本用法}
+%
+% 要使用本宏包,首先在导言区调用:
+% \begin{Verbatim}
+% \usepackage{diagbox}
+% \end{Verbatim}
+%
+% \DescribeMacro{\diagbox}
+% "\diagbox" 是宏包提供的主要命令。它可以带有两个必选参数,表示要生成斜线表头的
+% 两部分内容。默认斜线是从西北到东南方向的。
+%
+% 例如:\\
+% \begin{SideBySideExample}[frame=single,numbers=left,xrightmargin=.45\linewidth]
+% \begin{tabular}{|l|ccc|}
+% \hline
+% \diagbox{Time}{Day} & Mon & Tue & Wed \\
+% \hline
+% Morning & used & used & \\
+% Afternoon & & used & used \\
+% \hline
+% \end{tabular}
+% \end{SideBySideExample}
+% \medskip
+%
+% \changes{v2.0}{2011/11/22}{增加有三部分、双斜线的表头格式。}
+% "\diagbox" 也可以接受三个参数,这样就会生成带有两条斜线的表头,例如:
+% \begin{Example}[frame=single,numbers=left]
+% \begin{tabular}{|l|ccc|}
+% \hline
+% \diagbox{Time}{Room}{Day} & Mon & Tue & Wed \\
+% \hline
+% Morning & used & used & \\
+% Afternoon & & used & used \\
+% \hline
+% \end{tabular}
+% \end{Example}
+%
+% \subsection{更多参数设置}
+%
+% "\diagbox" 还可以在前面带一个可选参数,里面用 key-value 的语法设置宽度、方向
+% 等更多的选项:
+% \begin{description}
+% \item[width] 明确指定盒子的总宽度。如果省略,则会自动计算能够放下所有内容的
+% 宽度。
+% \item[height] 明确指定盒子的总高度。
+% \item[dir] 指定斜线方向。可以取 "NW"(西北)、"NE"(东北)、"SW"(西南)、
+% "SE"(东南)四种方向。在只有一条斜线的表头中,"NE" 与 "SW"、 "SE" 与 "NW" 是
+% 等价的。斜线方向的默认值是 "NW"。
+%
+% "\diagbox[dir="\meta{方向}"]{A}{B}" 在表格中的效果:\\
+% \begin{tabular}{ll@{\qquad}ll}
+% "NW" 或 "SE":&
+% \begin{tabular}{|c|} \hline \diagbox[dir=SE]{A}{B} \\\hline \end{tabular} &
+% "SW" 或 "NE":&
+% \begin{tabular}{|c|} \hline \diagbox[dir=NE]{A}{B} \\\hline \end{tabular}
+% \end{tabular}
+%
+% "\diagbox[dir="\meta{方向}"]{A}{M}{B}" 在表格中的效果:\\
+% \begin{tabular}{*4{ll@{\qquad}}}
+% "NW"&
+% \begin{tabular}{|c|} \hline \diagbox[dir=NW]{A}{M}{B} \\\hline \end{tabular}&
+% "NE"&
+% \begin{tabular}{|c|} \hline \diagbox[dir=NE]{A}{M}{B} \\\hline \end{tabular}&
+% "SW"&
+% \begin{tabular}{|c|} \hline \diagbox[dir=SW]{A}{M}{B} \\\hline \end{tabular}&
+% "SE"&
+% \begin{tabular}{|c|} \hline \diagbox[dir=SE]{A}{M}{B} \\\hline \end{tabular}
+% \end{tabular}
+%
+% \item[innerwidth] 设置盒子中内容的宽度。"innerwidth" 选项可以与表格的列宽度
+% 一起设置并保持一致。如:
+% \begin{Example}
+% \begin{tabular}{|p{2cm}|} \hline
+% \diagbox[innerwidth=2cm]{A}{B} \\ \hline
+% \end{tabular}
+% \end{Example}
+%
+% \item[innerleftsep, innerrightsep] 设置内间距,即内容盒子与斜线盒子边界之间
+% 的距离。我们有关系式:
+% \[
+% "innerleftsep" + "innerwidth" + "innerrightsep" = "width".
+% \]
+% 例如:
+% \begin{Example}
+% \begin{tabular}{|c|} \hline
+% \diagbox[innerleftsep=.5cm,innerrightsep=0pt]{A}{B} \\ \hline
+% \end{tabular}
+% \end{Example}
+%
+% \item[outerleftsep, outerrightsep] 设置外间距,即斜线盒子边界到表格单元格边
+% 界的距离。由于斜线是沿单元格画出而非斜线盒子本身画出,斜线通常会伸出斜线盒子
+% 之外,此距离为负数,并满足如下关系式:
+% \begin{align*}
+% "outerleftsep" + "LEFTtabcolsep" &= 0\,\mathrm{pt}, \\
+% "outerrightsep" + "RIGHTtabcolsep" &= 0\,\mathrm{pt}.
+% \end{align*}
+% 其中 "LEFTtabcolsep" 与 "RIGHTtabcolsep" 是表格竖线与表格内容(斜线例子边
+% 界)之间的距离。例如:
+% \begin{Example}
+% \begin{tabular}{|r@{\hspace{20pt}}|l|} \hline
+% \diagbox[outerrightsep=-20pt]{A}{B} & C \\ \hline
+% AABB & CC \\ \hline
+% \end{tabular}
+% \end{Example}
+%
+% \item[leftsep, rightsep] 同时设置左右内外间距,满足关系式:
+% \begin{align*}
+% "innerleftsep" &:= "leftsep", & "innerrightsep" &:= "rightsep", \\
+% "outerleftsep" &:= -"leftsep", & "outerrightsep" &:= -"rightsep".
+% \end{align*}
+%
+% \item[trim] 设置左边界或右边界不计算额外的空白,可以取值为 "l", "r", "lr" 或
+% "rl"。这个选项在列格式包含 "@{}" 时将会有用。
+%
+% 注:"trim=l" 与 "leftsep=0pt" 效果相同,而 "trim=r" 与 "rightsep=0pt" 效果相
+% 同。
+%
+% \item[font] 设置单元格字体。
+%
+% "\diagbox[font=\footnotesize\itshape]{Small}{Italic}"\quad
+% \begin{tabular}{|c|} \hline
+% \diagbox[font=\footnotesize\itshape]{Small}{Italic} \\ \hline
+% \end{tabular}
+%
+% \item[linewidth] 设置斜线宽度。
+% \item[linecolor] 设置斜线颜色。(需要自行载入 \pkg{color} 或 \pkg{xcolor} 宏
+% 包。)
+%
+% "\diagbox[linewidth=2pt,linecolor=blue]{AAA}{BBB}"\quad
+% \begin{tabular}{|c|} \hline
+% \diagbox[linewidth=2pt,linecolor=blue]{AAA}{BBB} \\ \hline
+% \end{tabular}
+% \end{description}
+%
+% \changes{v2.0}{2011/11/23}{变更 "trim" 选项的行为,去掉了使用 "trim" 选项时
+% 内部的间距。这与 \pkg{slashbox} 行为不同。}
+% 一个更复杂的例子:
+% \begin{Example}[frame=single,numbers=left]
+% \begin{tabular}{|@{}l|c|c|r@{}|}
+% \hline
+% \diagbox[width=5em,trim=l]{Time}{Day} & Mon & Tue & Wed\\
+% \hline
+% Morning & used & used & used\\
+% \hline
+% Afternoon & & used & \diagbox[dir=SW,height=2em,trim=r]{A}{B} \\
+% \hline
+% \end{tabular}
+% \end{Example}
+% \bigskip
+%
+% 此外,"\diagbox" 的表头内容还可以用 "\\" 手工换行。此时通常需要对自动计算的
+% 表头高度进行手工调整。例如:
+% \begin{Example}[frame=single,numbers=left]
+% \begin{tabular}{|c|}
+% \hline
+% \diagbox[height=3\line]{line\\heads}{column\\heads} \\
+% \hline
+% \end{tabular}
+% \end{Example}
+%
+% \subsection{对 \pkg{slashbox} 宏包的兼容性}
+%
+% 在使用 \pkg{diagbox} 宏包时,会模拟 \pkg{slashbox} 宏包的功能,并禁止
+% \pkg{slashbox} 再被调用。
+%
+% \pkg{diagbox} 宏包提供了与 \pkg{slashbox} 大致相同的 "\slashbox" 与
+% "\backslashbox" 两个命令。 "\slashbox" 与 "\backslashbox" 的语法来自
+% \pkg{slashbox} 宏包,排版效果略有区别。这两个命令仅在旧文档中作为兼容命令使
+% 用。实际中使用 "\diagbox" 更为方便。
+%
+% \DescribeMacro{\backslashbox}
+% "\backslashbox" 基本功能与 "\diagbox" 类似。它带有两个可选参数,分别表示
+% "\diagbox" 中的 "width" 与 "trim" 选项。
+%
+% \DescribeMacro{\slashbox}
+% "\slashbox" 基本功能与 "\diagbox[dir=SW]" 类似。它也带有两个可选参数,表示
+% "\diagbox" 中的 "width" 和 "tirm" 选项。
+%
+% 例如:\\
+% \begin{SideBySideExample}[frame=single,numbers=left,xrightmargin=.45\linewidth]
+% \begin{tabular}{|c|c|c|} \hline
+% \backslashbox[2cm]{num}{alpha}
+% & A & B \\\hline
+% 1 & A1 & B1 \\\hline
+% 2 & A2 & B2 \\\hline
+% \end{tabular}
+% \end{SideBySideExample}
+%
+% \section{已知问题和未来版本}
+%
+% 已知问题:
+% \begin{itemize}
+% \item "\slashbox" 与 "\backslashbox" 命令的效果与在 \pkg{slashbox} 宏包中不
+% 同。两个宏包在计算盒子宽度和高度时,使用了不同的算法;同时,在处理
+% "\slashbox" 第二个可选参数(即 "\diagbox" 的 "trim" 键)时,使用的方式也不一
+% 样。
+%
+% 这不是 bug。通常 \pkg{diagbox} 计算出的宽度比 \pkg{slashbox} 的结果更安全一
+% 些。
+%
+% \item
+% "\diagbox" 生成的单元格必须是表列中最宽的一个。如果不能达到最宽,则画出的斜
+% 线不能保证在正确的位置。例如:\\[1ex]
+% \begin{SideBySideExample}[frame=single,numbers=left,xrightmargin=.45\linewidth]
+% \begin{tabular}{|c|} \hline
+% \diagbox{A}{B} \\\hline
+% Very long term \\\hline
+% \end{tabular}
+% \end{SideBySideExample}
+% \\[1ex]
+% 此时可以手工设置较宽的 "\diagbox" 的 "width" 选项,解决此问题。
+% \end{itemize}
+%
+% 未尽的工作:
+% \begin{itemize}
+% \item 源代码的文档需要改进。特别是在 "\diagbox@triple" 中的宽度和高度计算算
+% 法需要详细说明。
+% \end{itemize}
+%
+% \StopEventually{}
+%
+%
+% \clearpage
+% \section{Implementation / 代码实现}
+%
+% \iffalse
+%<*package>
+% \fi
+%
+% \subsection{实现依赖的工具包}
+%
+% 使用 key-value 界面。
+% \begin{macrocode}
+\RequirePackage{keyval}
+% \end{macrocode}
+% 绘图依赖 \pkg{pict2e} 宏包。
+% \begin{macrocode}
+\RequirePackage{pict2e}
+% \end{macrocode}
+% 计算依赖 \pkg{fp} 宏包。
+% \changes{v2.2}{2016/12/28}{避免 \pkg{fp} 包的 \texttt{nomessages} 选项在使用
+% \pkg{catoptions} 包时冲突}
+% \begin{macrocode}
+\RequirePackage{fp}
+\FPmessagesfalse
+% \end{macrocode}
+% 长度计算 \pkg{calc} 宏包。
+% \changes{v2.2}{2016/12/28}{使用 \pkg{calc} 包计算选项参数,以支持
+% \cs{widthof} 等命令。}
+% \begin{macrocode}
+\RequirePackage{calc}
+% \end{macrocode}
+% 内部控制 \pkg{array} 宏包。
+% \begin{macrocode}
+\RequirePackage{array}
+% \end{macrocode}
+%
+%
+% \subsection{资源分配}
+%
+% 分配用到的盒子寄存器。它们分别对应于 "\diagbox" 三个必选参数的内容。
+% \begin{macrocode}
+\newbox\diagbox@boxa
+\newbox\diagbox@boxb
+\newbox\diagbox@boxm
+% \end{macrocode}
+% 分配长度变量。
+% \begin{macrocode}
+\newdimen\diagbox@wd
+\newdimen\diagbox@ht
+\newdimen\diagbox@insepl
+\newdimen\diagbox@insepr
+\newdimen\diagbox@outsepl
+\newdimen\diagbox@outsepr
+% \end{macrocode}
+%
+% \begin{macrocode}
+\def\diagbox@clear{%
+ \diagbox@wd=\z@
+ \diagbox@ht=\z@
+ \diagbox@insepl=\tabcolsep
+ \diagbox@insepr=\tabcolsep
+ \diagbox@outsepl=-\tabcolsep
+ \diagbox@outsepr=-\tabcolsep
+}
+% \end{macrocode}
+%
+% \subsection{命令选项定义}
+%
+% 下面定义 "\diagbox" 的键值选项。
+%
+% \changes{v2.1}{2014/07/03}{允许在 \texttt{width} 和 \texttt{height} 的命令选项
+% 中写表达式计算长度。}
+% \changes{v2.1}{2016/02/24}{允许在 \texttt{height} 选项中使用
+% \texttt{\textbackslash line} 表示行高。}
+% 斜线盒子的总宽度。
+% \begin{macrocode}
+\define@key{diagbox}{width}{%
+ \unless\ifdim\diagbox@wd=\z@
+ \PackageWarning{diagbox}%
+ {You should not set width/innerwidth option more than once.}%
+ \fi
+ \setlength{\diagbox@wd}{#1}}
+% \end{macrocode}
+% 斜线盒子的总高度,参数中可使用 "\line" 表示行高。
+% \begin{macrocode}
+\define@key{diagbox}{height}{%
+ \let\diagbox@save@line\line
+ \def\line{\normalbaselineskip}%
+ \setlength{\diagbox@ht}{#1}%
+ \let\line\diagbox@save@line}
+% \end{macrocode}
+%
+% \changes{v2.1}{2014/08/15}{盒子内容与斜线框距离 \texttt{innerleftsep},
+% \texttt{innerrightsep} 命令选项。}
+% 盒子内容与斜线框左右的距离。
+% \begin{macrocode}
+\define@key{diagbox}{innerleftsep}{%
+ \setlength{\diagbox@insepl}{#1}}
+\define@key{diagbox}{innerrightsep}{%
+ \setlength{\diagbox@insepr}{#1}}
+% \end{macrocode}
+%
+% \changes{v2.1}{2016/02/24}{盒子内容宽度 \texttt{innerwidth} 命令选项。}
+% 设置盒子内容的宽度(与列格式 "p{宽度}" 对应)。盒子内容宽度加上盒子与斜线框
+% 左右距离之和应为斜线盒子总宽度,即有
+% \[
+% "innerleftsep" + "innerwidth" + "innerrightsep" = "width".
+% \]
+% "innerwidth" 选项将通过设置盒子总宽度,维护上面的关系式。
+% \begin{macrocode}
+\define@key{diagbox}{innerwidth}{%
+ \unless\ifdim\diagbox@wd=\z@
+ \PackageWarning{diagbox}%
+ {You should not set width/innerwidth option more than once.}%
+ \fi
+ \setlength{\diagbox@wd}{#1+\diagbox@insepl+\diagbox@insepr}}
+% \end{macrocode}
+%
+% \changes{v2.1}{2014/08/15}{斜线盒子与表格单元边框距离 \texttt{outerleftsep},
+% \texttt{outerrightsep} 命令选项。}
+% 斜线盒子与表格单元边框距离。该外部间距应为实际表列内容与列分隔线之间距离的相
+% 反数,以此保证斜线与表格竖线能相接,即应输入参数保证
+% \begin{align*}
+% "outerleftsep" + "LEFTtabcolsep" &= 0\,\mathrm{pt}, \\
+% "outerrightsep" + "RIGHTtabcolsep" &= 0\,\mathrm{pt}.
+% \end{align*}
+% \begin{macrocode}
+\define@key{diagbox}{outerleftsep}{%
+ \setlength{\diagbox@outsepl}{#1}}
+\define@key{diagbox}{outerrightsep}{%
+ \setlength{\diagbox@outsepr}{#1}}
+% \end{macrocode}
+%
+% \changes{v2.1}{2014/08/15}{左右边距 \texttt{leftsep}, \texttt{rightsep} 命令
+% 选项。}
+% 设置左右边距,它将同时设置盒子内容与斜线框的内部间距,以及斜线盒子与表格单元
+% 边框的外部间距。并保持关系:
+% \begin{align*}
+% "innerleftsep" &:= "leftsep", & "innerrightsep" &:= "rightsep", \\
+% "outerleftsep" &:= -"leftsep", & "outerrightsep" &:= -"rightsep".
+% \end{align*}
+% \begin{macrocode}
+\define@key{diagbox}{leftsep}{%
+ \setlength{\diagbox@insepl}{#1}%
+ \setlength{\diagbox@outsepl}{-(#1)}}
+\define@key{diagbox}{rightsep}{%
+ \setlength{\diagbox@insepr}{#1}%
+ \setlength{\diagbox@outsepr}{-(#1)}}
+% \end{macrocode}
+%
+% 盒子计算边界时是否忽略左右的空白。"trim=l" 效果等同于 "leftsep=0pt";"trim=r"
+% 效果等同于 "rightsep=0pt"。
+% \begin{macrocode}
+\define@key{diagbox}{trim}{%
+ \@tfor\@reserveda:=#1\do{%
+ \ifcsname diagbox@insep\@reserveda\endcsname
+ \setlength{\csname diagbox@insep\@reserveda\endcsname}{\z@}%
+ \setlength{\csname diagbox@outsep\@reserveda\endcsname}{\z@}%
+ \else
+ \PackageError{diagbox}{Unknown trim option `#1'.}{l, r, lr and rl are supported.}%
+ \fi}}
+% \end{macrocode}
+%
+% 盒子的方向。
+% \begin{macrocode}
+\define@key{diagbox}{dir}{%
+ \def\diagbox@dir{#1}%
+ \unless\ifcsname diagbox@dir@#1\endcsname
+ \PackageError{diagbox}{Unknown direction `#1'.}{NW, NE, SW, SE are supported.}%
+ \def\diagbox@dia{NW}%
+ \fi}
+\let\diagbox@dir@SE\relax
+\let\diagbox@dir@SW\relax
+\let\diagbox@dir@NE\relax
+\let\diagbox@dir@NW\relax
+% \end{macrocode}
+%
+% \changes{v2.1}{2014/07/03}{增加命令选项 \texttt{linewidth}, \texttt{linecolor}
+% 设置斜线宽度与颜色。}
+% 斜线宽度与颜色。
+% \begin{macrocode}
+\define@key{diagbox}{linewidth}{%
+ \setlength{\@tempskipa}{#1}%
+ \linethickness{\@tempskipa}}
+\define@key{diagbox}{linecolor}{%
+ \def\diagbox@setlinecolor{\color{#1}}}
+\let\diagbox@setlinecolor\empty
+% \end{macrocode}
+%
+% \changes{v2.1}{2014/07/03}{增加命令选项 \texttt{font} 支持设置内容字体。}
+% 设置内容字体。
+% \begin{macrocode}
+\define@key{diagbox}{font}{%
+ \def\diagbox@font{#1}}
+\let\diagbox@font\empty
+% \end{macrocode}
+%
+% \subsection{绘制斜线盒子}
+%
+% \begin{macro}{\diagbox@pict}
+% 这是带斜线的盒子本身。由一个 "picture" 环境实现。
+% \begin{macrocode}
+\def\diagbox@pict{%
+ \unitlength\p@
+ \begin{picture}
+ (\strip@pt\dimexpr\diagbox@wd+\diagbox@outsepl+\diagbox@outsepr\relax,\strip@pt\diagbox@ht)
+ (\strip@pt\dimexpr-\diagbox@outsepl\relax,0)
+ \@nameuse{diagbox@\diagbox@part @pict@\diagbox@dir}
+ \end{picture}}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\diagbox@double@pict@SE}
+% 方向为 "SE" 的斜线盒子内容。
+% \begin{macrocode}
+\def\diagbox@double@pict@SE{%
+ \put(0,0) {\makebox(0,0)[bl]{\box\diagbox@boxa}}
+ \put(\strip@pt\diagbox@wd,\strip@pt\diagbox@ht) {\makebox(0,0)[tr]{\box\diagbox@boxb}}
+ \diagbox@setlinecolor
+ \Line(0,\strip@pt\diagbox@ht)(\strip@pt\diagbox@wd,0)}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\diagbox@double@pict@NW}
+% 方向 "NW" 与 "SE" 相同。
+% \begin{macrocode}
+\let\diagbox@double@pict@NW\diagbox@double@pict@SE
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\diagbox@double@pict@NE}
+% 方向为 "NE" 的斜线盒子内容。
+% \begin{macrocode}
+\def\diagbox@double@pict@NE{%
+ \put(0,\strip@pt\diagbox@ht) {\makebox(0,0)[tl]{\box\diagbox@boxa}}
+ \put(\strip@pt\diagbox@wd,0) {\makebox(0,0)[br]{\box\diagbox@boxb}}
+ \diagbox@setlinecolor
+ \Line(0,0)(\strip@pt\diagbox@wd,\strip@pt\diagbox@ht)}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\diagbox@double@pict@NE}
+% 方向 "SW" 与 "NE" 相同。
+% \begin{macrocode}
+\let\diagbox@double@pict@SW\diagbox@double@pict@NE
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\diagbox@double}
+% \changes{v2.0}{2011/11/22}{在使用 "trim" 选项时去掉内容与盒子边界的间距。这
+% 与 \pkg{slashbox} 的行为不同。}
+% 分成两部分的盒子。三个参数,分别为 key-value 格式的可选项、左半边内容、右半边
+% 内容。这里的主要工作是读入参数并计算斜线盒子的大小。
+% \begin{macrocode}
+\def\diagbox@double#1#2#3{%
+ \begingroup
+ \diagbox@clear
+ \def\diagbox@part{double}%
+ \setkeys{diagbox}{dir=NW,#1}%
+ \setbox\diagbox@boxa=\hbox{%
+ \begin{tabular}{@{\hspace{\diagbox@insepl}}>{\diagbox@font}l@{}}
+ #2
+ \end{tabular}}%
+ \setbox\diagbox@boxb=\hbox{%
+ \begin{tabular}{@{}>{\diagbox@font}r@{\hspace{\diagbox@insepr}}}
+ #3
+ \end{tabular}}%
+ \ifdim\diagbox@wd=\z@
+ \ifdim\wd\diagbox@boxa>\wd\diagbox@boxb
+ \diagbox@wd=\dimexpr2\wd\diagbox@boxa+\diagbox@insepl+\diagbox@insepr\relax
+ \else
+ \diagbox@wd=\dimexpr2\wd\diagbox@boxb+\diagbox@insepl+\diagbox@insepr\relax
+ \fi
+ \fi
+ \ifdim\diagbox@ht=\z@
+ \diagbox@ht=\dimexpr\ht\diagbox@boxa+\dp\diagbox@boxa+\ht\diagbox@boxb+\dp\diagbox@boxb\relax
+ \fi
+ $\vcenter{\hbox{\diagbox@pict}}$%
+ \endgroup}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\diagbox@triple@setbox@NW}
+% \begin{macrocode}
+\def\diagbox@triple@setbox@NW#1#2#3{%
+ \setbox\diagbox@boxa=\hbox{%
+ \begin{tabular}{@{\hspace{\diagbox@insepl}}>{\diagbox@font}l@{}}
+ #1
+ \end{tabular}}%
+ \setbox\diagbox@boxm=\hbox{%
+ \begin{tabular}{@{\hspace{\diagbox@insepl}}>{\diagbox@font}l@{}}
+ #2
+ \end{tabular}}%
+ \setbox\diagbox@boxb=\hbox{%
+ \begin{tabular}{@{}>{\diagbox@font}r@{\hspace{\diagbox@insepr}}}
+ #3
+ \end{tabular}}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\diagbox@triple@setbox@SW}
+% \begin{macrocode}
+\let\diagbox@triple@setbox@SW\diagbox@triple@setbox@NW
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\diagbox@triple@setbox@NW}
+% \begin{macrocode}
+\def\diagbox@triple@setbox@SE#1#2#3{%
+ \setbox\diagbox@boxa=\hbox{%
+ \begin{tabular}{@{\hspace{\diagbox@insepl}}l@{}}#1\end{tabular}}%
+ \setbox\diagbox@boxm=\hbox{%
+ \begin{tabular}{@{}r@{\hspace{\diagbox@insepr}}}#2\end{tabular}}%
+ \setbox\diagbox@boxb=\hbox{%
+ \begin{tabular}{@{}r@{\hspace{\diagbox@insepr}}}#3\end{tabular}}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\diagbox@triple@setbox@NE}
+% \begin{macrocode}
+\let\diagbox@triple@setbox@NE\diagbox@triple@setbox@SE
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\diagbox@triple@pict@NW}
+% \begin{macrocode}
+\def\diagbox@triple@pict@NW{%
+ \put(0,0) {\makebox(0,0)[bl]{\box\diagbox@boxa}}
+ \put(0,\y) {\makebox(0,0)[tl]{\box\diagbox@boxm}}
+ \put(\x,\y) {\makebox(0,0)[tr]{\box\diagbox@boxb}}
+ \diagbox@setlinecolor
+ \Line(0,\yym)(\x,0)
+ \Line(\xm,\y)(\x,0)}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\diagbox@triple@pict@NE}
+% \begin{macrocode}
+\def\diagbox@triple@pict@NE{%
+ \put(0,\y) {\makebox(0,0)[tl]{\box\diagbox@boxa}}
+ \put(\x,\y) {\makebox(0,0)[tr]{\box\diagbox@boxm}}
+ \put(\x,0) {\makebox(0,0)[br]{\box\diagbox@boxb}}
+ \diagbox@setlinecolor
+ \Line(0,0)(\xxm,\y)
+ \Line(0,0)(\x,\yym)}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\diagbox@triple@pict@SW}
+% \begin{macrocode}
+\def\diagbox@triple@pict@SW{%
+ \put(0,\y) {\makebox(0,0)[tl]{\box\diagbox@boxa}}
+ \put(0,0) {\makebox(0,0)[bl]{\box\diagbox@boxm}}
+ \put(\x,0) {\makebox(0,0)[br]{\box\diagbox@boxb}}
+ \diagbox@setlinecolor
+ \Line(0,\ym)(\x,\y)
+ \Line(\xm,0)(\x,\y)}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\diagbox@triple@pict@SE}
+% \begin{macrocode}
+\def\diagbox@triple@pict@SE{%
+ \put(0,0) {\makebox(0,0)[bl]{\box\diagbox@boxa}}
+ \put(\x,0) {\makebox(0,0)[br]{\box\diagbox@boxm}}
+ \put(\x,\y) {\makebox(0,0)[tr]{\box\diagbox@boxb}}
+ \diagbox@setlinecolor
+ \Line(0,\y)(\xxm,0)
+ \Line(0,\y)(\x,\ym)}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\diagbox@triplebox}
+% \changes{v2.0}{2011/11/22}{新增三部分双斜线的盒子}
+% 分成三部分的盒子。四个参数,分别为 key-value 格式的可选项、左半边内容、中间
+% 内容、右半边内容。
+% \begin{macrocode}
+\def\diagbox@triple#1#2#3#4{%
+ \begingroup
+ \diagbox@clear
+ \def\diagbox@part{triple}%
+ \setkeys{diagbox}{dir=NW,#1}%
+ \@nameuse{diagbox@triple@setbox@\diagbox@dir}{#2}{#3}{#4}%
+% \end{macrocode}
+% 取长宽
+% \begin{macrocode}
+ \edef\xa{\strip@pt\wd\diagbox@boxa}%
+ \edef\ya{\strip@pt\dimexpr\ht\diagbox@boxa+\dp\diagbox@boxa\relax}%
+ \edef\xb{\strip@pt\wd\diagbox@boxb}%
+ \edef\yb{\strip@pt\dimexpr\ht\diagbox@boxb+\dp\diagbox@boxb\relax}%
+ \edef\xm{\strip@pt\wd\diagbox@boxm}%
+ \edef\ym{\strip@pt\dimexpr\ht\diagbox@boxm+\dp\diagbox@boxm\relax}%
+% \end{macrocode}
+% 列方程,求方程系数
+% \begin{macrocode}
+ \FPneg\bi\yb
+ \FPadd\ci\xb\xm \FPneg\ci\ci
+ \FPmul\di\xm\yb
+ \FPadd\bj\ya\ym \FPneg\bj\bj
+ \FPneg\cj\xa
+ \FPmul\dj\xa\ym
+% \end{macrocode}
+% 解方程
+% \begin{macrocode}
+ \FPsub\u\dj\di
+ \FPupn{v}{bj ci * bi cj * -}%
+ \FPupn{delta}{bi dj * bj di * - cj ci - * 4 * %
+ v u + copy * %
+ - 2 swap root}%
+ \ifdim\diagbox@wd=\z@
+ \FPupn{x}{2 bj bi - delta v u - + / /}%
+ \diagbox@wd=\x\p@
+ \else
+ \edef\x{\strip@pt\diagbox@wd}%
+ \fi
+ \ifdim\diagbox@ht=\z@
+ \FPupn{y}{2 cj ci - delta v u + - / /}%
+ \diagbox@ht=\y\p@
+ \else
+ \edef\y{\strip@pt\diagbox@ht}%
+ \fi
+ \FPsub\xxm\x\xm
+ \FPsub\yym\y\ym
+% \end{macrocode}
+% 画盒子
+% \begin{macrocode}
+ $\vcenter{\hbox{\diagbox@pict}}$%
+ \endgroup}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{用户命令}
+%
+% \begin{macro}{\diagbox}
+% \changes{v2.0}{2011/11/22}{判断参数个数,选择两部分或三部分盒子。}
+% 主要的用户命令。判断使用两部分还是三部分的盒子。
+% \begin{macrocode}
+\newcommand\diagbox[3][]{%
+ \@ifnextchar\bgroup
+ {\diagbox@triple{#1}{#2}{#3}}{\diagbox@double{#1}{#2}{#3}}}
+% \end{macrocode}
+% \end{macro}
+%
+% 以下代码用来模拟 \pkg{slashbox} 宏包的功能。
+%
+% 禁止读入 \pkg{slashbox}。
+% \begin{macrocode}
+\expandafter\xdef\csname ver@slashbox.\@pkgextension\endcsname{9999/99/99}
+% \end{macrocode}
+%
+%
+% \begin{macro}{\slashbox}
+% 模拟 "\slashbox"。
+% \begin{macrocode}
+\def\slashbox{%
+ \def\diagbox@slashbox@options{dir=SW,}%
+ \slashbox@}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\backslashbox}
+% 模拟 "\backslashbox"。
+% \begin{macrocode}
+\def\backslashbox{%
+ \def\diagbox@slashbox@options{dir=NW,}%
+ \slashbox@}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\slashbox@}
+% \begin{macrocode}
+\newcommand\slashbox@[1][]{%
+ \ifx\relax#1\relax\else
+ \edef\diagbox@slashbox@options{%
+ \unexpanded\expandafter{\diagbox@slashbox@options}%
+ \unexpanded{width=#1,}}%
+ \fi
+ \slashbox@@}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\slashbox@@}
+% \begin{macrocode}
+\newcommand\slashbox@@[3][]{%
+ \edef\diagbox@slashbox@options{%
+ \unexpanded\expandafter{\diagbox@slashbox@options}%
+ \unexpanded{trim=#1,}}%
+ \expandafter\diagbox\expandafter[\diagbox@slashbox@options]{#2}{#3}}
+\endinput
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \iffalse
+%</package>
+% \fi
+%
+% \Finale
+\endinput
diff --git a/macros/latex/contrib/diagbox/diagbox.ins b/macros/latex/contrib/diagbox/diagbox.ins
new file mode 100644
index 0000000000..93294e12ef
--- /dev/null
+++ b/macros/latex/contrib/diagbox/diagbox.ins
@@ -0,0 +1,58 @@
+%% Copyright (C) 2011--2016 by Leo Liu <leoliu.pku@gmail.com>
+%% --------------------------------------------------------------------------
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%% http://www.latex-project.org/lppl.txt
+%% and version 1.3 or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%%
+%% This work has the LPPL maintenance status `maintained'.
+%%
+%% The Current Maintainer of this work is Leo Liu.
+%%
+%% This work consists of the files diagbox.dtx and diagbox.ins
+%% and the derived filebase diagbox.sty.
+%%
+
+\input docstrip.tex
+\keepsilent
+
+\usedir{tex/latex/diagbox}
+
+\preamble
+
+This is a generated file.
+
+Copyright (C) 2011--2016 by Leo Liu <leoliu.pku@gmail.com>
+--------------------------------------------------------------------------
+This work may be distributed and/or modified under the
+conditions of the LaTeX Project Public License, either version 1.3
+of this license or (at your option) any later version.
+The latest version of this license is in
+ http://www.latex-project.org/lppl.txt
+and version 1.3 or later is part of all distributions of LaTeX
+version 2005/12/01 or later.
+
+\endpreamble
+
+\askforoverwritefalse
+\generate{\file{diagbox.sty}{\from{diagbox.dtx}{package}}}
+
+\obeyspaces
+\Msg{*************************************************************}
+\Msg{* *}
+\Msg{* To finish the installation you have to move the following *}
+\Msg{* file into a directory searched by TeX: *}
+\Msg{* *}
+\Msg{* diagbox.sty *}
+\Msg{* *}
+\Msg{* To produce the documentation run the file diagbox.dtx *}
+\Msg{* through LaTeX. *}
+\Msg{* *}
+\Msg{* Happy TeXing! *}
+\Msg{* *}
+\Msg{*************************************************************}
+
+\endbatchfile
diff --git a/macros/latex/contrib/diagbox/diagbox.pdf b/macros/latex/contrib/diagbox/diagbox.pdf
new file mode 100644
index 0000000000..d31cd0c261
--- /dev/null
+++ b/macros/latex/contrib/diagbox/diagbox.pdf
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