我正在修复我的命令\fullref，该命令内部使用\nameref并且不支持同时使用多个标签。然而，在这个问题上如何同时引用多个标签？，提出了一个\nameref支持同时支持多个标签的固定版本。
这个问题的答案提供了 2 种变体\nameref，但对于我的\fullref命令，我需要一种新的变体，使我可以省略参考标签名称，Figure如Figure My Caption。
编辑问题的答案如何同时引用多个标签？，我设法创建了这个新变体，超出了答案中已有的 2 个变体。 导致\nameref命令的以下 3 个变体：
% “Start in lower case” variant. With star: disable hyperlinks.
% Does put the label name, i.e., Figure My Figure. #2: comma list of refs
\NewDocumentCommand \namerefs { s m }
{
\__user_name_refs:NNnn \c_true_bool \c_false_bool {#1} {#2}
}
% “Start in upper case” variant. With star: disable hyperlinks.
% Does put the label name, i.e., Figure My Figure. #2: comma list of refs
\NewDocumentCommand \Namerefs { s m }
{
\__user_name_refs:NNnn \c_true_bool \c_true_bool {#1} {#2}
}
% “Start in lower case” variant. With star: disable hyperlinks.
% Does NOT put the label name, i.e., My Figure. #2: comma list of refs
\NewDocumentCommand \nameRefs { s m }
{
\__user_name_refs:NNnn \c_false_bool \c_false_bool {#1} {#2}
}
我所做的更改只是在函数中添加一个新的布尔参数作为第一个参数\__user_name_refs:NNnn，并将此参数传递给函数\user_name_refs:nnxn，并在函数内部使用它\user_name_refs:nnxn来不将\nameref标签名称打印为Figure。
如果该函数的第一个参数\user_name_refs:nnxn是true，则将打印/输出引用标签Figure。如果是false，则不会打印任何内容，即没有Figure标签。
\bool_if:nTF {#1}
{
% (section, Section, sections or Sections) or (theorem, Theorem, ...) or...
\user_name_cref:xV
{ \bool_if:nTF {#2} { C } { c }
ref
\int_compare:nNnTF { \l__user_name_refs_nbrefs_int } > { 1 } { s } { } }
\l__user_name_refs_firstref_tl
\nobreakspace
}{}
到目前为止，我已经编辑了所有代码，这些代码应该足以使上述 3 个\nameref变体正常工作。但我无法编译它，因为 latex 会抛出此错误：
(D:\User\Documents\latex\texmfs\install\tex\latex\base\omscmr.fd)
! Undefined control sequence.
\__user_name_refs:NNnn ...4->\user_name_refs:nnxn
{#1}{#2}{\IfBooleanTF {#3}...
l.114 ...reference and hyperlink: \nameRefs{first}
(we'll disable
我不太了解新的扩展语法，可能遗漏了一些非常简单的东西。你能找到我在更改中忘记添加的内容吗？
% The code below automatically adapts to the selected language.
\documentclass[english]{memoir}
\usepackage{babel}
\usepackage{xparse}
\usepackage[colorlinks=true]{hyperref}
\usepackage{cleveref}
\OnehalfSpacing
\ExplSyntaxOn
% #1: variant (cref, Cref, crefs or Crefs)
% #2: reference name (label)
\cs_new_protected:Npn \user_name_cref:nn #1#2
{ \use:c { name #1 } {#2} }
\cs_generate_variant:Nn \user_name_cref:nn { xV }
% #1: boolean expression (true: disable hyperlink)
% #2: reference name (label)
\cs_new_protected:Npn \user_name_ref:nn #1#2
{ \bool_if:nTF {#1} { \nameref* } { \nameref } {#2} }
\cs_generate_variant:Nn \user_name_ref:nn { nV }
\seq_new:N \l__user_name_refs_tmpa_seq
\seq_new:N \l__user_name_refs_tmpb_seq
\int_new:N \l__user_name_refs_nbrefs_int
\tl_new:N \l__user_name_refs_firstref_tl
% #1: boolean expression (true: Does put the label name, i.e., Figure My Figure)
% #2: boolean expression (true: start with capitalized letter, as in \Cref)
% #3: boolean expression (true: disable hyperlinks)
% #4: comma list of refs
\cs_new_protected:Npn \user_name_refs:nnnn #1#2#3#4
{
\seq_set_from_clist:Nn \l__user_name_refs_tmpa_seq {#4}
\int_set:Nn \l__user_name_refs_nbrefs_int
{ \seq_count:N \l__user_name_refs_tmpa_seq }
\seq_get_left:NN \l__user_name_refs_tmpa_seq \l__user_name_refs_firstref_tl
\bool_if:nTF {#1}
{
% (section, Section, sections or Sections) or (theorem, Theorem, ...) or...
\user_name_cref:xV
{ \bool_if:nTF {#2} { C } { c }
ref
\int_compare:nNnTF { \l__user_name_refs_nbrefs_int } > { 1 } { s } { } }
\l__user_name_refs_firstref_tl
\nobreakspace
}{}
% Now print the references.
\seq_clear:N \l__user_name_refs_tmpb_seq
\seq_map_inline:Nn \l__user_name_refs_tmpa_seq
{
\seq_put_right:Nn \l__user_name_refs_tmpb_seq
{ \user_name_ref:nn {#3} {##2} }
}
\seq_use:Nnnn \l__user_name_refs_tmpb_seq { \crefpairconjunction }
{ \crefmiddleconjunction } { \creflastconjunction }
}
\cs_generate_variant:Nn \user_name_refs:nnnn { nx }
\cs_new_protected:Npn \__user_name_refs:NNnn #1#2#3#4
{
\user_name_refs:nnxn {#1}
{#2}
{ \IfBooleanTF {#3} { \c_true_bool } { \c_false_bool } }
{#4}
}
% “Start in lower case” variant.
% Does put the label name, i.e., Figure My Figure.
% With star: disable hyperlinks.
% #2: comma list of refs
\NewDocumentCommand \namerefs { s m }
{
\__user_name_refs:NNnn \c_true_bool \c_false_bool {#1} {#2}
}
% “Start in upper case” variant.
% Does put the label name, i.e., Figure My Figure.
% With star: disable hyperlinks.
% #2: comma list of refs
\NewDocumentCommand \Namerefs { s m }
{
\__user_name_refs:NNnn \c_true_bool \c_true_bool {#1} {#2}
}
% “Start in lower case” variant.
% Does NOT put the label name, i.e., My Figure.
% With star: disable hyperlinks.
% #2: comma list of refs
\NewDocumentCommand \nameRefs { s m }
{
\__user_name_refs:NNnn \c_false_bool \c_false_bool {#1} {#2}
}
\ExplSyntaxOff
\newcommand*{\fullref}[1]{\Cref{#1}: \nameRefs{#1}}
\begin{document}
\fullref{first,second,third,fourth}.
\namerefs{first,second,third,fourth}.
\Namerefs{first,second,third,fourth}.
\nameRefs{first,second,third,fourth}.
\section{First section}
\label{first}
\section{Second section}
\label{second}
\section{Third section}
\label{third}
\section{Fourth section}
\label{fourth}
\end{document}
参考：
答案1
可以通过生成适当的函数变体来解决该问题以便能够使用\user_name_refs:nnxn：
\cs_generate_variant:Nn \user_name_refs:nnnn { nnxn }
并在定义中使用正确的内联函数参数（##1而不是） ：##2\user_name_refs:nnnn
\seq_map_inline:Nn \l__user_name_refs_tmpa_seq
{
\seq_put_right:Nn \l__user_name_refs_tmpb_seq
{ \user_name_ref:nn {#3} {##1} }
}
生成的 PDF：
