在主体中调用时，替换函数\MakeURLHyperTargetFromSectionName{Replace all spaces with dashes}
有效，但调用时\def\currenthypertarget{\MakeURLHyperTargetFromSectionName{A string with spaces} }它不执行任何操作（即 currenthypertarget="带有空格的字符串"
[顺便说一句，替换函数“marian_replace”是我能找到的最简单的函数。实际上我想使用来自自动标签，自动生成密钥 但任何尝试将 mwe 与 regex_replace_all 一起使用的尝试都会引发错误]
平均能量损失
\documentclass[english,headings=optiontotocandhead]{scrartcl}
\makeatletter
\usepackage[colorlinks=true]{hyperref}
\usepackage{pdfcomment}
\usepackage{lipsum}
\usepackage{expl3,xparse}
%----------
\FamilyStringKey[.section]{KOMAarg}{hypertarget}{\currenthypertarget}
\newcommand*{\currenthypertarget}{}
\makeatletter
\renewcommand*{\sectionlinesformat}[4]{%
\ifx\currenthypertarget\@empty %hypertarget has not been given
% \def\currenthypertarget{#1.\csname the#1\endcsname} %use default e.g "section.1
\def\currenthypertarget{\MakeURLHyperTargetFromSectionName{A string with spaces} } %automatically generate url from heading
\fi
\hypertarget{\currenthypertarget}{}
\@hangfrom{\hskip #2#3}{\pdftooltip{#4}{\#\currenthypertarget}}%
\global\let\currenthypertarget\@empty
\hyperref[toc]{\hphantom{M}} %make an invisible link back to TOC at end of section heading (colorlinks=true)
}
%---------------------
\ExplSyntaxOn
\NewDocumentCommand{\MakeURLHyperTargetFromSectionName}{m}
{
\marian_replace:nnn {#1} % {#2} {#3}
}
\tl_new:N \l_marian_input_text_tl
\cs_new_protected:Npn \marian_replace:nnn #1 % #2 #3
{
\tl_set:Nn \l_marian_input_text_tl { #1 }
\tl_replace_all:Nnn \l_marian_input_text_tl { ~ } { - }
\tl_use:N \l_marian_input_text_tl
}
\ExplSyntaxOff
\makeatother
\usepackage{babel}
\begin{document}
\section{Lyx Section1}
\MakeURLHyperTargetFromSectionName{Replace all spaces with dashes}
\subsection{Lyx subSection1}
\section{Lyx Sec Same Name}
\section{Lyx Sec Same Name}
\section[hypertarget={First.Section.Name}]{First Section Name}
\lipsum[1]
\section[hypertarget={Example.Section}]{Example Section}
\lipsum[2]
\section[hypertarget={anb}]{Final Section}
See \hyperlink{First.Section.Name}{the first section} or
\hyperlink{Example.Section}{the second section} or
\hyperlink{Final.Section}{this final section}.
\newpage{}
\tableofcontents{}\label{toc}
\end{document}
答案1
首先#4，\sectionlinesformat不仅是标题，而且是格式化的标题（有关此信息，请参阅 KOMA-Script 手册）。因此，您不仅要替换空格。另一种方法是使用\@currentlabelname(generated by hyperrefresp. namerefresp. scrartcl)。
其次，\marian_replace:nnn这是错误的，因为名称表示三个参数（属于 expl3 类型n），但只有一个。我不会在我的示例中使用它，因此，expl3如果您想知道正确的命名方案，请参阅手册以获取更多信息。
最后但同样重要的一点是，我认为，您想要的\currenthypertarget是扩展的替换而不是替换的定义。
为了解决最后一个问题，可以简单地替换空格，例如
\documentclass[headings=optiontotocandhead]{scrartcl}
\usepackage{hyperref}
\usepackage[draft]{pdfcomment}
\usepackage{lipsum}
\usepackage{expl3}
\FamilyStringKey[.section]{KOMAarg}{hypertarget}{\currenthypertarget}
\newcommand*{\currenthypertarget}{}
\makeatletter
\ExplSyntaxOn
\renewcommand*{\sectionlinesformat}[4]{%
\ifx\currenthypertarget\@empty
\let\currenthypertarget\@currentlabelname
\tl_replace_all:Nnn\currenthypertarget { ~ } { - }
\fi
\hypertarget{\currenthypertarget}{}\@hangfrom{\hskip
#2#3}{\pdftooltip{#4}{\#\currenthypertarget}}%
\global\let\currenthypertarget\@empty
}
\ExplSyntaxOff
\makeatother
\begin{document}
\section{First Section Name}
\lipsum[1]
\section[hypertarget={Example.Section}]{Example Section}
\lipsum[2]
\section[hypertarget={Final.Section}]{Final Section}
See \hyperlink{First-Section-Name}{the first section} or
\hyperlink{Example.Section}{the second section} or
\hyperlink{Final.Section}{this final section}.
\end{document}
要发挥全部魔力，定义一个\generatehypertarget类似于答案的标签生成命令上述链接的问题：
\documentclass[headings=optiontotocandhead]{scrartcl}
\usepackage{hyperref}
\usepackage[draft]{pdfcomment}
\usepackage{lipsum}
\usepackage{xparse}
\FamilyStringKey[.section]{KOMAarg}{hypertarget}{\currenthypertarget}
\newcommand*{\currenthypertarget}{}
\ExplSyntaxOn
\tl_new:N \l_magguu_compactlabel_tl
\cs_new_protected:Nn \magguu_compactlabel:nn
{
\tl_set:Nn \l_magguu_compactlabel_tl { #2 }
\show \l_magguu_compactlabel_tl
% remove non alphabetic/space characters
\regex_replace_all:nnN {[^a-zA-Z\s]} {} \l_magguu_compactlabel_tl
% remove words less than three letter long
\regex_replace_all:nnN {\b[a-zA-Z]{1,2}\b} {} \l_magguu_compactlabel_tl
% remove leading spaces
\regex_replace_once:nnN {\A\s+} {} \l_magguu_compactlabel_tl
% remove trailing spaces
\regex_replace_once:nnN {\s+\Z} {\ } \l_magguu_compactlabel_tl
% change runs of space into an underscore
\regex_replace_all:nnN {\s+} {_} \l_magguu_compactlabel_tl
% truncate to #1 characters
\regex_replace_all:nnN {(^\w{1,#1})\w*} {\1} \l_magguu_compactlabel_tl
% remove a possible trailing underscore
\regex_replace_once:nnN {_\Z} {} \l_magguu_compactlabel_tl
% lowercase the string
\tl_set:Nx \l_magguu_compactlabel_tl { \str_lower_case:f { \tl_use:N \l_magguu_compactlabel_tl } }
}
\NewDocumentCommand{\generatehypertarget}{ O{20} m }{%
\magguu_compactlabel:nn { #1 } { #2 }
\tl_set_eq:NN\currenthypertarget\l_magguu_compactlabel_tl
}
\ExplSyntaxOff
\makeatletter
\renewcommand*{\sectionlinesformat}[4]{%
\ifx\currenthypertarget\@empty
\expandafter\generatehypertarget\expandafter{\@currentlabelname}%
\fi
\hypertarget{\currenthypertarget}{}\@hangfrom{\hskip
#2#3}{\pdftooltip{#4}{\#\currenthypertarget}}%
\global\let\currenthypertarget\@empty
}
\makeatother
\begin{document}
\section{First Section Name}
\lipsum[1]
\section[hypertarget={Example.Section}]{Example Section}
\lipsum[2]
\section[hypertarget={Final.Section}]{Final Section}
See \hyperlink{first_section_name}{the first section} or
\hyperlink{Example.Section}{the second section} or
\hyperlink{Final.Section}{this final section}.
\end{document}