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将命令传递给 hypersetup 时缺少 endcsname

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将命令传递给 hypersetup 时缺少 endcsname

我正在尝试手动处理作者列表。该逻辑在文档中有效，但当我将其传递给 hypersetup 时似乎不起作用。

\documentclass{article}
\usepackage{authblk}
\usepackage{etoolbox}
\usepackage{hyperref}

%%%%%%%%%%%%%% Logic to process author list, e.g., part of some package %%%%%%%%%%%%%
%Define lists
\newcommand{\authlist}{}
\newcounter{nMYauthors}
\newcommand\MYauthor[2][]{\author[#1]{#2}\listadd{\authlist}{#2}\stepcounter{nMYauthors}}
%Define processing of list
\newcommand{\bodyforloop}[1]{\stepcounter{iMYauthor}\ifnumequal{\value{iMYauthor}}{1}{}{\ifnumequal{\value{nMYauthors}}{\value{iMYauthor}}{, and }{, }}#1}
\newcounter{iMYauthor}
\newcommand{\displayAuthorList}{\setcounter{iMYauthor}{0}\forlistloop{\bodyforloop}{\authlist}}

%%%%%%%%%%%%%%%% Define authors in preamble %%%%%%%%%%%%%
\MYauthor[*]{Ms. F. First}
\MYauthor[*]{Mr. S. Second}
\affil[*]{\LaTeX amateurs}

%This generates errors
\hypersetup{pdfauthor = {\displayAuthorList}}

\begin{document}
The new author list works in the document: \displayAuthorList
\end{document}

我收到的错误是：将命令传递给 hypersetup 时缺少 endcsname

有人对如何解决这个问题有什么想法吗？

答案1

您需要使用可扩展的命令。

对于此应用程序来说，重新定义是有意义的\author。

我设置了一个（全局）列表管理，可以重复用于其他目的。该\delivergloballist命令将列表名称、仅两个元素之间的分隔符、两个以上元素之间的分隔符以及最后两个元素的分隔符作为参数。

\documentclass{article}
\usepackage{authblk}
\usepackage{hyperref}

% Manage lists
\ExplSyntaxOn

\NewDocumentCommand{\definegloballist}{m}
 {
  \seq_new:c { g_dikdirk_list_#1_seq }
 }
\NewDocumentCommand{\addtogloballist}{mm}
 {
  \seq_gput_right:cn { g_dikdirk_list_#1_seq } { #2 }
 }
\NewExpandableDocumentCommand{\deliverlist}{mmmm}
 {
  \seq_use:cnnn { g_dikdirk_list_#1_seq } { #2 } { #3 } { #4 }
 }

\ExplSyntaxOff

\definegloballist{authors}

\NewCommandCopy\authblkauthor\author
\RenewDocumentCommand{\author}{om}{%
  \IfNoValueTF{#1}{\authblkauthor{#2}}{\authblkauthor[#1]{#2}}%
  \addtogloballist{authors}{#2}%
}
%Define processing of list
\newcommand{\displayAuthorList}{%
  \deliverlist{authors}{ and }{, }{, and }%
}

%%%%%%%%%%%%%%%% Define authors in preamble %%%%%%%%%%%%%
\author[*]{Mrs. F. First}
\author[*]{Mr. S. Second}
\affil[*]{\LaTeX amateurs}

\hypersetup{pdfauthor = {\displayAuthorList}}

\begin{document}

\title{Example paper}
\maketitle

The new author list works also in the document:

\displayAuthorList

\end{document}

在此处输入图片描述

的输出pdfinfo是

Title:
Subject:
Keywords:
Author:          Mrs. F. First and Mr. S. Second
Creator:         LaTeX with hyperref
Producer:        pdfTeX-1.40.25
CreationDate:    Thu May  4 16:05:47 2023 CEST
ModDate:         Thu May  4 16:05:47 2023 CEST
Custom Metadata: yes
Metadata Stream: no
Tagged:          no
UserProperties:  no
Suspects:        no
Form:            none
JavaScript:      no
Pages:           1
Encrypted:       no
Page size:       612 x 792 pts (letter)
Page rot:        0
File size:       46742 bytes
Optimized:       no
PDF version:     1.5

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