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使用背景颜色突出显示元音

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使用背景颜色突出显示元音

是否可以使用循环或包为一段文本中的字母 a、e、i、o、u、ya 赋予不同的背景颜色？例如，为 a 赋予红色背景，为 e 赋予蓝色背景等。而不更改文本中其他字母的背景。

答案1

适应这个答案，这里有一种方法可以使用相同的 XeTeX 扩展来放入背景颜色。我只做了“a”和“e”，但显然可以扩展。

\documentclass{article}
\usepackage{xcolor}
\begin{document}

\XeTeXinterchartokenstate = 1
\newXeTeXintercharclass \tta \XeTeXcharclass `\a \tta
\newXeTeXintercharclass \tte \XeTeXcharclass `\e \tte
%
\setbox2=\hbox{a}
\XeTeXinterchartoks    0 \tta = {\rlap{\textcolor{green}{\vrule height \ht2 width \wd2 depth \dp2}}}
\XeTeXinterchartoks \tta \tta = {\rlap{\textcolor{green}{\vrule height \ht2 width \wd2 depth \dp2}}}
\XeTeXinterchartoks \tte \tta = {\rlap{\textcolor{green}{\vrule height \ht2 width \wd2 depth \dp2}}}
\XeTeXinterchartoks  255 \tta = {\rlap{\textcolor{green}{\vrule height \ht2 width \wd2 depth \dp2}}}
\setbox2=\hbox{e}
\XeTeXinterchartoks    0 \tte = {\rlap{\textcolor{orange}{\vrule height \ht2 width \wd2 depth \dp2}}}
\XeTeXinterchartoks \tta \tte = {\rlap{\textcolor{orange}{\vrule height \ht2 width \wd2 depth \dp2}}}
\XeTeXinterchartoks \tte \tte = {\rlap{\textcolor{orange}{\vrule height \ht2 width \wd2 depth \dp2}}}
\XeTeXinterchartoks  255 \tte = {\rlap{\textcolor{orange}{\vrule height \ht2 width \wd2 depth \dp2}}}

The awful weary green fox jumped over the lazy dog.

\end{document}

在此处输入图片描述

阅读 XeTeX 参考来了解详细信息\XeTeXinterchartoks。

答案2

结合两个问题的答案可以得出一个简单的解决方案：

Leo Liu 的回答：-soul：使用 \selectcolormodel 时 xcolor 突出显示出现问题

egreg 的回答是：-在 LaTeX 文档中为所有元音添加不同的颜色

\documentclass{article}
\usepackage{xparse,xcolor}
\usepackage[normalem]{ulem} % use normalem to protect \emph
\newcommand\hl[1]{\bgroup\markoverwith
  {\textcolor{#1}{\rule[-.5ex]{2pt}{2.5ex}}}\ULon}
  \ExplSyntaxOn
\NewDocumentCommand{\colorize}{mm}
 {
  \cs_set:cpn { maryjane_color_#1: } { \hl{#2}{#1} }
 }
\tl_new:N \l_maryjane_text_tl
\NewDocumentCommand{\changecolors}{ O{aeiou} m }
 {
  \tl_set:Nn \l_maryjane_text_tl { #2 }
  \tl_map_inline:nn { #1 } 
   {
    \tl_replace_all:Nnn \l_maryjane_text_tl { ##1 } { \use:c { maryjane_color_##1: } }
   }
  \l_maryjane_text_tl
 }
\ExplSyntaxOff

\colorize{a}{red}
\colorize{e}{blue}
\colorize{i}{green}
\colorize{o}{yellow}
\colorize{u}{brown!30}

\begin{document}

\changecolors{The quick brown fox jumped over the lazy dog}

\changecolors[a]{The quick brown fox jumped over the lazy dog}

\end{document}

代码输出

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