巧妙划线

Question

我正在使用 ulem 包按照这里的建议执行干净的下划线 https://alexwlchan.net/2017/10/latex-underlines/

它非常有效，但无论字体大小如何，线条的粗细都保持不变。

作为第一次尝试，我希望当字体设置为 HUGE（使用 moresize 包的最大尺寸）时，参数能够相应地改变。

但是，当我尝试使用它时，我收到一条错误消息“未定义的控制序列”。

% !TEX TS-program = lualatex

\documentclass[fontsize=12pt,DIV=calc,oneside]{scrarticle}
  
\usepackage{contour}
\usepackage[normalem]{ulem}
\usepackage{moresize}

% Underline

    \makeatletter    
    \newcommand{\cleverul}[1]
    {%
        \ifthenelse{\equal{\f@size}{\pointsize{\normalsize}}}%
        {%
            \setlength{\ULdepth}{1.8pt}%
            \renewcommand{\ULthickness}{0.8pt}%
            \uline{\phantom{#1}}%
            \llap{\contour{white}{#1}}%
        }%
        \ifthenelse{\equal{\f@size}{\pointsize{\HUGE}}}%
        {%
        \setlength{\ULdepth}{3pt}%
        \renewcommand{\ULthickness}{1.5pt}%
        \uline{\phantom{#1}}%
        \llap{\contour{white}{#1}}
        }%
    }%
    \makeatother
    
\begin{document}
    
    \cleverul{try}
    
\end{document}

Answer 1

您可以使用简单的计算来代替检测：

\documentclass[fontsize=12pt,DIV=calc,oneside]{scrarticle}

\usepackage{contour}
\usepackage[normalem]{ulem}
\usepackage{moresize}

\usepackage{fp}

% Underline

\contourlength{0.8pt} % Specifies the distance between the underline and the character parts it does not want to touch.

\makeatletter
\newcommand{\cleverul}[1]
{%
    \FPmul\cleverul@temp{\f@size}{0.15}% This is \f@size * 0.15
    \setlength{\ULdepth}{\cleverul@temp pt}%
    \FPdiv\cleverul@temp{\f@size}{15}% This is \f@size / 15
    \renewcommand{\ULthickness}{\cleverul@temp pt}%
    \uline{\phantom{#1}}%
    \llap{\contour{white}{#1}}%
}%
\makeatother

\begin{document}

\noindent\cleverul{try}

\HUGE

\noindent\cleverul{try}

\end{document}

与 Biblatex 中的 URL 配合使用效果很好，只需添加以下行：

\DeclareFieldFormat{url}{\cleverul{\url{#1}}} % Without the word URL.

或者

\DeclareFieldFormat{url}{\mkbibacro{URL}\addcolon\space\cleverul{\url{#1}}} % With the word URL.

Answer 2

您可以简单地设置\ULthickness为字体相关的长度：

\documentclass[fontsize=12pt,DIV=calc,oneside]{scrarticle}
\usepackage{fix-cm}  
\usepackage{contour}
\usepackage[normalem]{ulem}
\usepackage{moresize}

\renewcommand\ULthickness{.04em}

    
\begin{document}

\raggedright
 
{\tiny  \uline{try \the\dimexpr\ULthickness}}
 
\uline{try \the\dimexpr\ULthickness}

{\huge \uline{try \the\dimexpr\ULthickness}}

{\HUGE \uline{try \the\dimexpr\ULthickness}}

 
\end{document}

Answer 3

这不是很美丽吗？

  \documentclass[fontsize=12pt,DIV=calc,oneside]{scrarticle}
    
    \usepackage{moresize}
    \usepackage{contour}
    \usepackage[normalem]{ulem}
    \usepackage{fp}
    
        
    % Clever Underline
        
        \makeatletter
        \newcommand{\cleverul}[1]
        {%
            \FPmul\cleverul@temp{\f@size}{0.15}% This is \f@size * 0.15
            \setlength{\ULdepth}{\cleverul@temp pt}%
            \FPdiv\cleverul@temp{\f@size}{15}% This is \f@size / 15
            \renewcommand{\ULthickness}{\cleverul@temp pt}%
                    \uline{\phantom{#1}}%
            \llap{\contour{white}{#1}}%
        }%
        \makeatother
        
    \begin{document}
        
    \noindent\tiny I want to give a \cleverul{try}\\
    \scriptsize I want to give a {\cleverul{try}}\\
    \footnotesize I want to give a \cleverul{try}\\
    \small I want to give a \cleverul{try}\\
    \normalsize I want to give a \normalsize\cleverul{try}\\
    \large I want to give a \cleverul{try}\\
    \Large I want to give a \cleverul{try}\\
    \LARGE I want to give \cleverul{try}\\
    \Huge I want to give a \cleverul{try}\\
    \HUGE I want to give a \cleverul{try}\\
        
    \end{document}