如何在枚举列表项中交叉引用可选参数内容？

Question

下面，是否可以创建一个交叉引用来打印内容可选参数的“类似注释”字段\ditem？

也就是说，我希望在引用标签时能够打印“一些大内容”（不带引号）ex:wow。

\documentclass{memoir}
\usepackage{amsthm,thmtools}
\usepackage{enumitem}

\declaretheoremstyle[
  headfont= \sffamily\bfseries, headpunct={\sffamily\bfseries.},
  postheadspace=0.5em,
  notefont=\sffamily\mdseries, bodyfont=\normalfont,
]{defstyle}

\declaretheorem[
  name=Examples, style=defstyle,
  numberwithin=chapter,
  qed=$\diamond$
  ]
{examples}
\counterwithin{examples}{chapter}

\newlist{pexenum}{enumerate}{1}
\setlist[pexenum,1]{%
  label= \sffamily\upshape(\arabic*),
  ref={\arabic*}, 
}
\makeatletter
\newcommand\gobblepar
  {\@ifnextchar\label{\gobblepar@label}{\@ifnextchar\par{\@gobble}{}}}
\newcommand\gobblepar@label[2]{\label{#2}\gobblepar}
\makeatother

% For examples with optional ``note-like'' field:
\newcommand\ditem[1][]{\item{\sffamily\MakeUppercase#1. }\gobblepar}

\usepackage[colorlinks,linkcolor=red]{hyperref}
\usepackage{cleveref}
\usepackage{crossreftools} % <--- does this help? 

\begin{document}
\chapter{The Main Thing}

\begin{examples}[some instances]\label{exs:mine}
    \begin{pexenum}
        \item A first example
        \ditem[something big]\label{ex:wow} A surprising example.\qedhere
    \end{pexenum}
\end{examples}

See \cref{ex:wow}.

\end{document}

观察确实\crtrefname{ex:wow}如此不是做我想要做的事：它返回封闭环境的注释字段“一些实例” examples。

Answer 1

解决方法是 Ulrike Fischer 在https://tex.stackexchange.com/a/303149/13492。以下是整个文档，其中包含该修复程序并检查特殊交叉引用命令是否仍然有效。

\documentclass{memoir}
\usepackage{amsthm,thmtools}
\usepackage{enumitem}

\declaretheoremstyle[
  headfont= \sffamily\bfseries, headpunct={\sffamily\bfseries.},
  postheadspace=0.5em,
  notefont=\sffamily\mdseries, bodyfont=\normalfont,
  spacebelow=12pt
]{defstyle}

\declaretheorem[
  name=Examples, style=defstyle,
  numberwithin=chapter,
  qed=$\diamond$
  ]
{examples}
\counterwithin{examples}{chapter}

\newlist{pexenum}{enumerate}{1}
\setlist[pexenum,1]{%
  label= \sffamily\upshape(\arabic*),
  ref={\arabic*}, 
}
\makeatletter
\newcommand\gobblepar
  {\@ifnextchar\label{\gobblepar@label}{\@ifnextchar\par{\@gobble}{}}}
\newcommand\gobblepar@label[2]{\label{#2}\gobblepar}
\makeatother

% For examples with optional ``note-like'' field:
%   Original \ditem is method of Skillmon, https://tex.stackexchange.com/a/699243/13492
%   Fix: Ulrike Fischer's method, https://tex.stackexchange.com/a/303149/13492:
\makeatletter
\newcommand\ditem[1][]{\item{\sffamily\MakeUppercase#1. }%
  \protected@edef\@currentlabel{#1}\gobblepar}
\makeatother

\usepackage[colorlinks,linkcolor=red]{hyperref}
\usepackage{cleveref}
\usepackage{crossreftools} % <--- does this help? 

% Special cross-referencing commands to check still OK:    
\crefname{examples}{Examples}{Examples}
\crefname{pexenumi}{}{} % do not use ``Item''
\crefformat{pexenumi}{\textup{(}#2#1#3\textup{)}}
\newcommand{\crefex}[2]{\hyperref[#2]{\namecref{#1}~\labelcref*{#1}~(\crtcrefcountervalue{#2})}}        
\newcommand\crefexone[1]{\hyperref[#1]{\textup{Example}~\textup{(}\crtcrefcountervalue{#1}\textup{)}}}

\begin{document}
\chapter{The Main Thing}

\begin{examples}[some instances]\label{exs:mine}
    \begin{pexenum}
        \item\label{ex:first} A first example.
        \ditem[something big]\label{ex:wow} A surprising example. \qedhere
    \end{pexenum}
\end{examples}
  
OK: Grab the optional argument of item \cref{ex:wow} which is: \ref*{ex:wow}.  

OK: \crefex{exs:mine}{ex:wow}.

OK: \crefexone{ex:first} and \crefexone{ex:wow}.

\end{document}