在交叉引用语言实例时，我使用它zref来定义用于引用对或范围的命令。
对于每个命令，我都有两个“跳过”变体mainskip和maxskip，用于在明确的上下文中进行本地引用；它们分别跳过一个或两个标记。
我的问题是这样的：我不想增加命令，而是想将这些变体变成引用命令的可选参数：
\cleverange[mainskip]{Ref1}{Ref2}, \cleverange[maxskip]{Ref1}{Ref2}
\clevepair[mainskip]{Ref1}{Ref2}, \clevepair[maxskip]{Ref1}{Ref2}
当然它也可能适用于常规引用，不涉及范围或对。
平均能量损失
\documentclass{article}
\usepackage{zref-user}
\usepackage{philex}
\renewcommand{\label}{\zlabel}
\newcommand{\na}{n\textbackslash a}
\makeatletter
\zref@newprop{theexno}{\arabic{ExNo}}
\zref@newprop{thesubexno}{\arabic{altsub}}
\zref@newprop{theexdepth}{\theExDepth}
\zref@newprop{mainstrip}{\ifnum\theExDepth=3\alph{altsub}.\roman{altsubsub}\else\alph{altsub}\fi}
\zref@newprop{maxstrip}{\ifnum\theExDepth=3\roman{altsubsub}\else{\ifnum\theExDepth=2\alph{altsub}\else\arabic{ExNo}\fi}\fi}
\zref@newprop{mainskip}{\ifnum\theExDepth=1\arabic{ExNo}\else{%
\ifnum\theExDepth=2\alph{altsub}%
\else\alph{altsub}.\roman{altsubsub}\fi}%
\fi}
\zref@newprop{maxskip}{\ifnum\theExDepth=3\roman{altsubsub}\else{%
\ifnum\theExDepth=2\alph{altsub}\else\arabic{ExNo}\fi}%
\fi}%
\zref@addprops{main}{theexno,thesubexno,theexdepth,mainstrip,maxstrip,mainskip,maxskip}
% Clever Stripping
\newcommand{\pairequal}[2]{%
\ifnum\zref@extract{#1}{theexno}=\zref@extract{#2}{theexno}{%
\ifnum\zref@extract{#1}{thesubexno}=\zref@extract{#2}{thesubexno}(\zref{#1},\,\zref[maxstrip]{#2})%
\else (\zref{#1},\,\zref[mainstrip]{#2})\fi}%
\else (\zref{#1}) and (\zref{#2})\fi}%
\newcommand{\rangeequal}[2]{%
\ifnum\zref@extract{#1}{theexno}=\zref@extract{#2}{theexno}{%
\ifnum\zref@extract{#1}{thesubexno}=\zref@extract{#2}{thesubexno}(\zref{#1}--\zref[maxstrip]{#2})%
\else (\zref{#1}--\zref[mainstrip]{#2})\fi}%
\else(\zref{#1})--(\zref{#2})\fi}%
\newcommand{\cleverange}[2]{%
\ifnum\zref@extract{#1}{theexdepth}=\zref@extract{#2}{theexdepth}\rangeequal{#1}{#2}%
\else(\zref{#1})--(\zref{#2})\fi}
\newcommand{\clevepair}[2]{%
\ifnum\zref@extract{#1}{theexdepth}=\zref@extract{#2}{theexdepth}\pairequal{#1}{#2}%
\else(\zref{#1}) and (\zref{#2})\fi}
\newcommand{\xzref}[1]{(\zref{#1})}
% Skipping Variants
% A. Main Skip
\newcommand{\mainskippairequal}[2]{%
\ifnum\zref@extract{#1}{theexno}=\zref@extract{#2}{theexno}{%
\ifnum\zref@extract{#1}{thesubexno}=\zref@extract{#2}{thesubexno}(\zref[mainskip]{#1},\,\zref[maxstrip]{#2})%
\else (\zref[mainskip]{#1}) and (\zref[mainstrip]{#2})\fi}%
\else (\zref[mainskip]{#1},\,\zref[mainskip]{#2})\fi}%
\newcommand{\mainskiprangeequal}[2]{%
\ifnum\zref@extract{#1}{theexno}=\zref@extract{#2}{theexno}{%
\ifnum\zref@extract{#1}{thesubexno}=\zref@extract{#2}{thesubexno}(\zref[mainskip]{#1}--\zref[maxstrip]{#2})%
\else (\zref[mainskip]{#1})--(\zref[mainskip]{#2})\fi}%
\else (\zref[mainskip]{#1}--\zref[mainskip]{#2})\fi}
\newcommand{\mainskipcleverange}[2]{%
\ifnum\zref@extract{#1}{theexdepth}=\zref@extract{#2}{theexdepth}\mainskiprangeequal{#1}{#2}%
\else (\zref[mainskip]{#1}--\zref[mainskip]{#2})\fi}
\newcommand{\mainskipclevepair}[2]{%
\ifnum\zref@extract{#1}{theexdepth}=\zref@extract{#2}{theexdepth}\mainskippairequal{#1}{#2}%
\else (\zref[mainskip]{#1},\,\zref[mainskip]{#2})\fi}
% B. Max Skip
\newcommand{\maxskippairequal}[2]{%
\ifnum\zref@extract{#1}{theexno}=\zref@extract{#2}{theexno}%
{\ifnum\zref@extract{#1}{thesubexno}=\zref@extract{#2}{thesubexno}(\zref[maxskip]{#1}) and (\zref[maxskip]{#2})%
\else(\zref[maxskip]{#1}) and (\zref[maxskip]{#2})\fi}%
\else(\zref[maxskip]{#1},\,\zref[maxskip]{#2})\fi}%
\newcommand{\maxskiprangeequal}[2]{%
\ifnum\zref@extract{#1}{theexno}=\zref@extract{#2}{theexno}{%
\ifnum\zref@extract{#1}{thesubexno}=\zref@extract{#2}{thesubexno}(\zref[maxskip]{#1})--(\zref[maxskip]{#2})%
\else(\zref[maxskip]{#1})--(\zref[maxskip]{#2})\fi}%
\else(\zref[maxskip]{#1}--\zref[maxskip]{#2})\fi}
\newcommand{\maxskipcleverange}[2]{%
\ifnum\zref@extract{#1}{theexdepth}=\zref@extract{#2}{theexdepth}\maxskiprangeequal{#1}{#2}%
\else(\zref[maxskip]{#1}--\zref[maxskip]{#2})\fi}
\newcommand{\maxskipclevepair}[2]{%
\ifnum\zref@extract{#1}{theexdepth}=\zref@extract{#2}{theexdepth}\maxskippairequal{#1}{#2}%
\else(\zref[maxskip]{#1},\,\zref[maxskip]{#2})\fi}
\makeatother
\begin{document}
\phildashes{}{.}
\subformat{a}{}{.}
\lb{main1}{Example One.
\lba{sub11}{Subexample One-One.
\lba{subsub111}{Subsubexample One-One-One.}
\lbb{subsub112}{Subsubexample One-One-Two.}
\lbz{subsub113}{Subsubexample One-One-Three.}}
\lbz{sub12}{Subexample One-Two.
\lba{subsub121}{Subsubexample One-Two-One.}
\lbz{subsub122}{Subsubexample One-Two-Two.}}}
\lb{main2}{Example Two.
\lba{sub21}{Subexample Two-One.}
\lbz{sub22}{Subexample Two-Two.}}
\vspace{3ex}
\textbf{Clever Ranges} (full - mainskip - maxskip)\vspace{1ex}
\begin{tabular}[c]{lll}
\cleverange{main1}{main2} & \na & \na\\
\cleverange{sub11}{sub12} & \mainskipcleverange{sub11}{sub12} & \na\\
\cleverange{sub11}{sub22} & \na & \na\\
\cleverange{subsub111}{subsub113} & \mainskipcleverange{subsub111}{subsub113} & \maxskipcleverange{subsub111}{subsub113}\\
\cleverange{subsub113}{subsub122} & \mainskipcleverange{subsub113}{subsub122} & \na
\end{tabular}
\vspace{2ex}
------------------\vspace{2ex}
\textbf{Clever Pairs} (full - mainskip - maxskip)\vspace{1ex}
\begin{tabular}[c]{lll}
\clevepair{main1}{main2} & \na & \na\\
\clevepair{sub11}{sub12} & \mainskipclevepair{sub11}{sub12} & \na\\
\clevepair{sub11}{sub22} & \na & \na\\
\clevepair{subsub111}{subsub113} & \mainskipclevepair{subsub111}{subsub113} & \maxskipclevepair{subsub111}{subsub113}\\
\clevepair{subsub113}{subsub122} & \mainskipclevepair{subsub113}{subsub122} & \na
\end{tabular}
\end{document}
