![使用 ulem 更改特殊下划线的颜色](https://linux22.com/image/408881/%E4%BD%BF%E7%94%A8%20ulem%20%E6%9B%B4%E6%94%B9%E7%89%B9%E6%AE%8A%E4%B8%8B%E5%88%92%E7%BA%BF%E7%9A%84%E9%A2%9C%E8%89%B2.png)
我正在使用该ulem
包来生成不同类型的下划线,并希望每种下划线样式都有不同的颜色(这样无论您是否以黑白方式查看文档,都可以看到差异)。包文档提供了一个如何定义基本命令的彩色版本的示例\uline
,该命令运行良好:
\newcommand\reduline{\bgroup\markoverwith{\textcolor{red}{\rule[-0.5ex]{2pt}{0.4pt}}}\ULon}
我遇到的问题是创建新命令来赋予其他类型的下划线颜色,即\dashuline
,\dotuline
和\uwave
,即使其中一个为蓝色,一个为绿色等。这些命令的定义比我理解的要复杂,我不确定如何将它们插入上述格式。其他下划线包理论上没问题,但我确实需要各种下划线形状,据我所知,ulem.sty
这些形状在例如中没有预定义。soul
答案1
这实际上比您想象的要容易得多。正如文档所建议的,只需查看并复制和修改定义(从第 211 行开始)。只需在要修改的定义中ulem.sty
的参数中插入一个颜色更改命令即可。\markoverwith
\documentclass{article}
\usepackage{ulem}
\usepackage{xcolor}
\makeatletter
\newcommand\reduline{\bgroup\markoverwith{\textcolor{red}{\rule[-0.5ex]{2pt}{0.4pt}}}\ULon}
\UL@protected\def\blueuwave{\leavevmode \bgroup
\ifdim \ULdepth=\maxdimen \ULdepth 3.5\p@
\else \advance\ULdepth2\p@
\fi \markoverwith{\lower\ULdepth\hbox{\textcolor{blue}{\sixly \char58}}}\ULon}
\UL@protected\def\yellowdotuline{\leavevmode \bgroup
\UL@setULdepth
\ifx\UL@on\UL@onin \advance\ULdepth2\p@\fi
\markoverwith{\begingroup
%\advance\ULdepth0.08ex
\lower\ULdepth\hbox{\kern.06em \textcolor{yellow}{.}\kern.04em}%
\endgroup}%
\ULon}
\UL@protected\def\greendashuline{\leavevmode \bgroup
\UL@setULdepth
\ifx\UL@on\UL@onin \advance\ULdepth2\p@\fi
\markoverwith{\kern.13em
\vtop{\color{green}\kern\ULdepth \hrule width .3em}%
\kern.13em}\ULon}
\makeatother
\begin{document}
\reduline{I am underlined in red.}
\blueuwave{I am underlined with blue waves.}
\yellowdotuline{I am underlined with yellow dots.}
\greendashuline{I am underlined with green dashes.}
I am not underlined at all.
\end{document}
答案2
只需简单包装即可方便地支持任何预定义的颜色:
\documentclass{article}
\usepackage{ulem}
\usepackage{xcolor}
\definecolor{customdeepgreen}{HTML}{006A71}
\makeatletter
\newcommand{\coloruline}[2]{%
\newcommand\temp@reduline{\bgroup\markoverwith
{\textcolor{#1}{\rule[-0.5ex]{2pt}{0.4pt}}}\ULon}%
\temp@reduline{#2}%
}
\newcommand{\coloruuline}[2]{%
\UL@protected\def\temp@uuline{\leavevmode \bgroup
\UL@setULdepth
\ifx\UL@on\UL@onin \advance\ULdepth2.8\p@\fi
\markoverwith{\textcolor{#1}{\lower\ULdepth\hbox
{\kern-.03em\vbox{\hrule width.2em\kern1\p@\hrule}\kern-.03em}}}%
\ULon}%
\temp@uuline{#2}%
}
\newcommand{\coloruwave}[2]{%
\UL@protected\def\temp@uwave{\leavevmode \bgroup
\ifdim \ULdepth=\maxdimen \ULdepth 3.5\p@
\else \advance\ULdepth2\p@
\fi \markoverwith{\textcolor{#1}{\lower\ULdepth\hbox{\sixly \char58}}}\ULon}
\font\sixly=lasy6 % does not re-load if already loaded, so no memory drain.
\temp@uwave{#2}%
}
\makeatother
\begin{document}
\coloruline{red}{I am underlined in red.}
\coloruwave{blue}{I am underlined in blue waves.}
\coloruuline{customdeepgreen}{I am double underlined in custom deep green.}
I am not underlined at all.
\end{document}
答案3
略有改善mkpoli 的回答通过改变命令可以避免一些错误\colorluline
:
\documentclass{article}
\usepackage{ulem}
\usepackage{xcolor}
\definecolor{customdeepgreen}{HTML}{006A71}
\makeatletter
% -------Changes made here-----------
\newcommand{\coloruline}[2]{%
\UL@protected\def\temp@uline{\leavevmode \bgroup
\markoverwith{\textcolor{#1}{\rule[-0.5ex]{2pt}{0.4pt}}}%
\ULon}%
\temp@uline{#2}%
}
%-----------------------------------
\newcommand{\coloruuline}[2]{%
\UL@protected\def\temp@uuline{\leavevmode \bgroup
\UL@setULdepth
\ifx\UL@on\UL@onin \advance\ULdepth2.8\p@\fi
\markoverwith{\textcolor{#1}{\lower\ULdepth\hbox
{\kern-.03em\vbox{\hrule width.2em\kern1\p@\hrule}\kern-.03em}}}%
\ULon}%
\temp@uuline{#2}%
}
\newcommand{\coloruwave}[2]{%
\UL@protected\def\temp@uwave{\leavevmode \bgroup
\ifdim \ULdepth=\maxdimen \ULdepth 3.5\p@
\else \advance\ULdepth2\p@
\fi \markoverwith{\textcolor{#1}{\lower\ULdepth\hbox{\sixly \char58}}}\ULon}
\font\sixly=lasy6 % does not re-load if already loaded, so no memory drain.
\temp@uwave{#2}%
}
\makeatother
\begin{document}
\coloruline{red}{I am underlined in red.}
\coloruwave{blue}{I am underlined in blue waves.}
\coloruuline{customdeepgreen}{I am double underlined in custom deep green.}
I am not underlined at all.
\end{document}