幾天前，我正在處理在彩色多行單元格之間繪製水平線的問題\hhline。我嘗試了兩種方法，最後採用了第二種。但是我發現第一個方法if calcis returned有一個bug 。
所有內容都在我的範例程式碼中。註釋該calc包，第三行下方的垂直線（紅色和青色）將正常顯示。
\documentclass{article}
\usepackage[table]{xcolor}
\usepackage{tikz}
\usepackage{multirow}
\usepackage{colortbl}
\usepackage{ehhline}
% \usepackage{calc} % make method 1 not work
%% vertical line
% vertical colored line #1 color #2 width
\newcommand{\vsl}[2]{\color{#1}\vrule width #2}
% colored solid line pattern
% #1 color #2 width #3 height
\newcommand{\hsp}[3]{\hbox{\textcolor{#1}{\rule{#2}{#3}}}}
% #1 top fill #2 bottom fill
\newcommand{\leaderfill}[1]{%
\xleaders\hbox{%
\vbox{\baselineskip=0pt\lineskip=0pt#1}%
}\hfill%
}
% #1 color #2 height
\newcommand{\sfill}[2]{%
\leaderfill{\hsp{#1}{0.1pt}{#2}}%
}
%% vline settings
% #1 rule width #2 color
\newcommand{\setvline}[2]{%
\global\setlength\arrayrulewidth{#2}\arrayrulecolor{#1}%
}
\begin{document}
\begin{tabular}{
!{\vsl{red}{5pt}}c
!{\vsl{teal}{5pt}}p{0.5cm}
!{\vsl{blue}{3pt}}
}
% row 1
\cellcolor{gray}
& \cellcolor{yellow}\\
\hhline{
~ % blank in merged cell
!{\sfill{black}{3pt}}
}
% row 2
\cellcolor{gray}
& \cellcolor{yellow}\\
\hhline{
!{\sfill{gray}{3pt}} % overlap the vertical line
!{\sfill{black}{3pt}}
}
% row 3
\cellcolor{gray} third row
& \cellcolor{orange}\\
% first method: set arrayrulewidth and arraycolor
% not work with calc
\hhline{
>{\setvline{red}{5pt}}|
!{\sfill{gray}{3pt}}
>{\setvline{teal}{5pt}}|
!{\sfill{black}{3pt}}
}
% row 4
\cellcolor{gray}\tikz[->, baseline=-.5ex] \draw (0, 0) -- (-1ex, 1ex);
% load calc
not load
& \cellcolor{pink}\\
% second method: use box
\hhline{
>{\vsl{red}{5pt}}
!{\sfill{gray}{3pt}}
>{\vsl{teal}{5pt}}
!{\sfill{black}{3pt}}
}
% row 5
\cellcolor{gray}\multirow{-5}*{}
& \cellcolor{cyan}\\
\end{tabular}
\end{document}
答案1
MWE 可以簡化為
\documentclass{article}
\usepackage[table]{xcolor}
\usepackage{ehhline}
\usepackage{stackengine}
\begin{document}
\begin{tabular}{p{0.5cm} !{\color{yellow}\vrule width 5pt} p{0.5cm}}
a & b \\
\hhline{
-
>{\global\setlength\arrayrulewidth{5pt}\arrayrulecolor{yellow}}|
>{\global\setlength\arrayrulewidth{.4pt}} -
}
c & d
\end{tabular}
\end{document}
從問題評論來看，是calc，loaded by stackengine，重新定義\setlength並禁止了從不支援的語法\global\setlength。
若要全域變更長度，您可以使用
\global\deflength{<length>}{<glue expression>}
其中\deflength由包定義etoolbox。
或者，您可以透過使用來自的新前導碼\arrayrulewidth來避免全域變更的需要>{...}hhlineV[<color>]{<width>}我之前的回答。
內部\hhline，V[<color>]{<width>}行為就像|具有特定的顏色和寬度。一個完整的例子：
\documentclass{article}
\usepackage[table]{xcolor}
\usepackage{ehhline}
\usepackage{stackengine}
\usepackage{xpatch} % or etoolbox
\usepackage{xparse}
\makeatletter
% based on \vline from latex2e
\def\HHvline#1{\vrule\@width#1}
\AtBeginDocument{
\@ifpackageloaded{colortbl}{
% based on \ifx\@tempb|...\else part of \HH@loop from colortbl.sty
\NewDocumentCommand{\HH@preamble@V}{ m o m }{%
\if@tempswa
\ifx\CT@drsc@\relax
\HH@add{\hskip\doublerulesep}%
\else
\HH@add{{\CT@drsc@\vrule\@width\doublerulesep}}%
\fi
\fi
\@tempswatrue
\IfNoValueTF{#2}
{\HH@add{{\CT@arc@{\HHvline{#3}}}}}
{\HH@add{{\color{#2}\HHvline{#3}}}}%
\HH@let V%
}
\xpatchcmd\HH@loop
{\PackageWarning{hhline}}
{%
\ifx\@tempb V% V[<color>]{<width>}
\let\next\HH@preamble@V
\else
\PackageWarning{hhline}%
}
{}{\fail}
}{
% based on \ifx\@tempb|...\else part of \HH@loop from hhline.sty
\NewDocumentCommand{\HH@preamble@V}{ m o m }{%
\if@tempswa\HH@add{\hskip\doublerulesep}\fi\@tempswatrue
\IfNoValueTF{#2}
{\HH@add{\@tempc{\HHvline{#3}}\@tempc}}
{\HH@add{\@tempc{\color{#2}\HHvline{#3}}\@tempc}}%
\HH@let V%
}
\xpatchcmd\HH@loop
{\PackageWarning{hhline}}
{%
\ifx\@tempb V% V[<color>]{<width>}
\let\next\HH@preamble@V
\else
}
{}{\fail}
}
\xpatchcmd\HH@loop
{\fi\fi\fi}
{\fi\fi\fi\fi}
{}{\fail}
}
\makeatother
\begin{document}
\begin{tabular}{p{0.5cm} !{\color{yellow}\vrule width 5pt} p{0.5cm}}
a & b \\
\hhline{- V[yellow]{5pt} >{\arrayrulecolor{yellow}}-}
c & d
\end{tabular}
\end{document}