在本主题中，编写新命令，用户界面建议请求，你们中的一些人教我如何编写一个可以生成精心设计的标题的函数。
在这种情况下，我的问题很复杂，因为文档中的作者数量可能超过 1。我们计划了一种方法，用于 3 位作者，但该策略非常麻烦。必须为其他作者插入新的节和条件。你教我如何做到这一点，而且很有效，我很感激你的努力。
我目前得到的输出如下所示：
作者希望能够轻松排除“指南编号”、“关键字”和“url”部分。他们的建议是保留空白字段，甚至从文档函数调用中省略键。
我希望你告诉我如何让它变得更加灵活。
按照上次的 twoauthors 和 threeauthors 示例，我需要为每个作者创建一个布尔值，然后对输出进行条件化。我摆弄了一下语法，但没能让它工作。但是，即使我能让它工作，我也不太相信这是最好的方法。这太乏味了。
以下是上述 MRE 生成的文档：
\documentclass[11pt,letterpaper,english]{extarticle}
\usepackage{lmodern}
\renewcommand{\sfdefault}{lmss}
\renewcommand{\ttdefault}{lmtt}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[demo]{graphicx}
\usepackage[includehead, includefoot,
lmargin=1in,
rmargin=1in,
tmargin=0.75in,
bmargin=1.0in,
headheight=0pt,
headsep=0pt,
marginparwidth=0pt,
footskip=1.5\baselineskip,
]{geometry}
\usepackage{xcolor}
\definecolor{darkblue}{HTML}{1e2277}
% $ This nullifies emacs subscripting in following%
%%BEGIN: This begins the custom header
\usepackage{array, tabularx}
\usepackage{xparse}
\usepackage{datetime}
\usepackage[unicode=true,pdfusetitle,
bookmarks=true,bookmarksnumbered=false, bookmarksopen=false,
breaklinks=true, pdfborder={0 0 0},
pdfborderstyle={}, backref=false,
colorlinks=true, linkcolor=darkblue, urlcolor=darkblue,
citecolor=darkblue] {hyperref}
\newdateformat{crmda}{\small{}\textbf{\shortmonthname[\THEMONTH] \THEDAY, \THEYEAR}}
\ExplSyntaxOn
\NewDocumentCommand \guidesetup { +m }
{
\bool_set_false:N \l_guide_twoauthors_bool
\bool_set_false:N \l_guide_threeauthors_bool
\keys_set:nn { guide } { #1 }
}
\keys_define:nn { guide }
{
firstauthor .code:n = {
\keys_set:nn { guide / firstauthor } { #1 }
},
secondauthor .code:n = {
\keys_set:nn { guide } { twoauthors }
\keys_set:nn { guide / secondauthor } { #1 }
},
thirdauthor .code:n = {
\keys_set:nn { guide } { threeauthors }
\keys_set:nn { guide / thirdauthor } { #1 }
},
twoauthors .bool_set:N = \l_guide_twoauthors_bool,
twoauthors .default:n = true,
twoauthors .initial:n = false,
threeauthors .bool_set:N = \l_guide_threeauthors_bool,
threeauthors .default:n = true,
threeauthors .initial:n = false,
firstauthor / firstname .tl_set:N = \l_guide_first_firstname_tl,
firstauthor / lastname .tl_set:N = \l_guide_first_lastname_tl,
firstauthor / affiliation .tl_set:N = \l_guide_first_affil_tl,
firstauthor / email .tl_set:N = \l_guide_first_email_tl,
secondauthor / firstname .tl_set:N = \l_guide_second_firstname_tl,
secondauthor / lastname .tl_set:N = \l_guide_second_lastname_tl,
secondauthor / affiliation .tl_set:N = \l_guide_second_affil_tl,
secondauthor / email .tl_set:N = \l_guide_second_email_tl,
thirdauthor / firstname .tl_set:N = \l_guide_third_firstname_tl,
thirdauthor / lastname .tl_set:N = \l_guide_third_lastname_tl,
thirdauthor / affiliation .tl_set:N = \l_guide_third_affil_tl,
thirdauthor / email .tl_set:N = \l_guide_third_email_tl,
leftlogo .tl_set:N = \l_guide_leftlogo_tl,
rightlogo .tl_set:N = \l_guide_rightlogo_tl,
number .int_set:N = \l_guide_number_int,
title .tl_set:N = \l_guide_title_tl,
keywords .tl_set:N = \l_guide_keywords_tl,
url .tl_set:N = \l_guide_url_tl,
firstauthor .initial:n = { firstname = a, lastname = b,
affiliation = c, email = d},
secondauthor .initial:n = { firstname = g, lastname = h,
affiliation = i, email = j},
thirdauthor .initial:n = { firstname = g, lastname = h,
affiliation = i, email = j},
url .initial:n = {https://ku.edu},
number .initial:n = 42,
title .initial:n = {Guide ~ to ~ Guides},
keywords .initial:n = {guide},
}
\NewDocumentCommand \guidehdr { +o }
{
\group_begin:
\IfValueT { #1 }
{
\bool_set_false:N \l_guide_twoauthors_bool
\keys_set:nn { guide } { #1 }
}
\guide_hdr:
\group_end:
}
\cs_new_protected:Nn \guide_hdr:
{
\noindent
\begin{tabularx}{\textwidth}{|>{\centering\arraybackslash}p{1.25in}>{\centering\arraybackslash}X>{\raggedleft\arraybackslash}p{1.25in}|}
\hline
\begin{minipage}[c]{\linewidth}
\begin{center}
\includegraphics[width=\linewidth]{\l_guide_leftlogo_tl}
\par
\bigskip
{\small{}\textbf{Guide ~ No}: ~ \int_to_arabic:n { \l_guide_number_int }}
\end{center}%
\end{minipage} &
\begin{minipage}[c][1\totalheight][b]{3.5in}%
\bigskip
\begin{center}
\begin{minipage}[t][1\totalheight][b]{1\columnwidth}%
\begin{center}
\textbf{ \large \l_guide_title_tl }\\
\rule[0.5ex]{1\linewidth}{1pt}
\par\end{center}%
\end{minipage}
\par
\end{center}
\begin{minipage}[t]{1\columnwidth}
\begin{center}
\textbf{\l_guide_first_firstname_tl {} ~ \l_guide_first_lastname_tl}, ~\l_guide_first_affil_tl {} ~ <\href{mailto:\l_guide_first_email_tl}{\l_guide_first_email_tl} >
\bool_if:NT \l_guide_twoauthors_bool
{
\\
\textbf{\l_guide_second_firstname_tl {} ~ \l_guide_second_lastname_tl}, ~\l_guide_second_affil_tl {} ~ <\href{mailto:\l_guide_second_email_tl}{\l_guide_second_email_tl} >
}
\bool_if:NT \l_guide_threeauthors_bool
{
\\
\textbf{\l_guide_third_firstname_tl {} ~ \l_guide_third_lastname_tl}, ~\l_guide_third_affil_tl {} ~ <\href{mailto:\l_guide_third_email_tl}{\l_guide_third_email_tl} >
}
\par
\end{center}
\end{minipage}
\smallskip
\par
\begin{flushleft}
\medskip
\textbf{Keywords}: ~ \l_guide_keywords_tl \\
See ~ \url{\l_guide_url_tl} ~ for ~ updates.
\par
\end{flushleft}
\smallskip
\end{minipage} &
\begin{minipage}[c]{\linewidth}
\begin{center}
\includegraphics[width=\linewidth]{\l_guide_rightlogo_tl}
\par
\bigskip
\crmda\today
\end{center}%
\end{minipage}
\tabularnewline
\hline
\end{tabularx}
}
\ExplSyntaxOff
%%END This ends the custom header
\begin{document}
%% Fill in values of the arguments here,
%% If blanks are needed, must insert value " ~ "
%% If comma needed inside value, wrap in {}.
%% Delete secondauthor and thirdauthor if not needed
\guidesetup{%
firstauthor={
lastname=Author,
firstname=First,
affiliation=Title{,}~Institute,
[email protected]},
secondauthor={
lastname=Author,
firstname=Second,
affiliation=Title{,}~Institute,
[email protected]},
thirdauthor={
lastname=Author,
firstname=Third,
affiliation=Title{,}~Institute,
[email protected]},
url={https://your.website.here.edu/guides},
keywords={knitr, LaTeX, reproducible documents},
title={A Title for Skeleton Template: rnw2pdf-guide-knit},
leftlogo={theme/logoleft.pdf},
rightlogo={theme/logo-vert.pdf},
number=-1
}
\guidehdr
HOWDY!
\end{document}
答案1
这里尝试了一种更友好的语法；不需要为作者声明不同的键，只需使用一个键和一个属性列表来存储数据。
\documentclass{article}
\usepackage[demo]{graphicx}
\usepackage[includehead, includefoot,
lmargin=1in,
rmargin=1in,
tmargin=0.75in,
bmargin=1.0in,
headheight=0pt,
headsep=0pt,
marginparwidth=0pt,
footskip=1.5\baselineskip,
]{geometry}
\usepackage{xcolor}
\definecolor{darkblue}{HTML}{1e2277}
\usepackage{array}
\usepackage{xparse}
\usepackage{datetime}
\usepackage{hyperref}
\newdateformat{crmda}{{\small\bfseries\shortmonthname[\THEMONTH] \THEDAY, \THEYEAR}}
\ExplSyntaxOn
\NewDocumentCommand \guidesetup { m }
{
\keys_set:nn { guide } { #1 }
}
\int_new:N \g_guide_authors_int
\prop_new:N \g_guide_authors_prop
\tl_new:N \l__guide_authors_tl
\keys_define:nn { guide }
{
author .code:n =
{
\int_gincr:N \g_guide_authors_int
\keys_set:nn { guide / author } { #1 }
},
author/firstname .code:n = { \guide_add_author:nn { firstname } { #1 } },
author/lastname .code:n = { \guide_add_author:nn { lastname } { #1 } },
author/affiliation .code:n = { \guide_add_author:nn { affiliation } { #1 } },
author/email .code:n = { \guide_add_author:nn { email } { #1 } },
leftlogo .tl_set:N = \l_guide_leftlogo_tl,
rightlogo .tl_set:N = \l_guide_rightlogo_tl,
number .tl_set:N = \l_guide_number_tl,
title .tl_set:N = \l_guide_title_tl,
keywords .tl_set:N = \l_guide_keywords_tl,
url .tl_set:N = \l_guide_url_tl,
title .initial:n = {TITLE~NEEDED},
}
\NewDocumentCommand \guidehdr { +O{} }
{
\group_begin:
\keys_set:nn { guide } { #1 }
\guide_hdr:
\group_end:
}
\cs_new_protected:Nn \guide_hdr:
{
\centering
\begin{tabular}
{
|c
m{ \dim_eval:n { \textwidth - 2.5in - 6\tabcolsep - 2\arrayrulewidth } }
c|
}
\hline
&&\tabularnewline[-\dim_eval:n { -\normalbaselineskip + 3ex }]
\begin{tabular}{@{}c@{}}
\includegraphics[width=1.25in]{\l_guide_leftlogo_tl} \\[\medskipamount]
\small\bfseries
\tl_if_empty:NTF \l_guide_number_tl %<--- there was a typo
{ \leavevmode\vphantom{G} }
{ Guide~No: ~ \tl_use:N \l_guide_number_tl }
\end{tabular}
&
\centering
\textbf{\large\l_guide_title_tl\\}
\rule[0.5ex]{1\linewidth}{1pt} \\
\guide_print_authors:
\vspace{\bigskipamount}
\raggedright
\tl_if_empty:NF \l_guide_keywords_tl
{
\textbf{Keywords}: ~ \l_guide_keywords_tl \\
}
\tl_if_empty:NF \l_guide_url_tl
{
See ~ \url{\l_guide_url_tl} ~ for ~ updates.
}
&
\begin{tabular}{@{}c@{}}
\includegraphics[width=1.25in]{\l_guide_rightlogo_tl} \\[\medskipamount]
\small\bfseries
\crmda\today
\end{tabular}
\tabularnewline
\hline
\end{tabular}
}
\cs_new_protected:Nn \guide_add_author:nn
{
\prop_gput:Nxn \g_guide_authors_prop
{ #1 \int_to_arabic:n { \g_guide_authors_int } }
{ #2 }
}
\cs_generate_variant:Nn \prop_gput:Nnn { Nx }
\cs_new_protected:Nn \guide_print_authors:
{
\tl_clear:N \l__guide_authors_tl
\int_step_inline:nnnn { 1 } { 1 } { \g_guide_authors_int }
{
\tl_put_right:Nn \l__guide_authors_tl
{
\textbf
{
\prop_item:Nn \g_guide_authors_prop { firstname ##1 }~
\prop_item:Nn \g_guide_authors_prop { lastname ##1 }:~
}
\prop_item:Nn \g_guide_authors_prop { affiliation##1 }~
\prop_item:Nn \g_guide_authors_prop { email##1 } \\
}
}
\tl_use:N \l__guide_authors_tl
}
\ExplSyntaxOff
%%END This ends the custom header
\begin{document}
\guidesetup{%
author={
lastname=Author,
firstname=First,
affiliation=Title{,}~Institute,
[email protected]},
author={
lastname=Author,
firstname=Second,
affiliation=Title{,}~Institute,
[email protected]},
author={
lastname=Author,
firstname=Third,
affiliation=Title{,}~Institute,
[email protected]},
url={https://your.website.here.edu/guides},
keywords={knitr, LaTeX, reproducible documents},
title={A Title for Skeleton Template: rnw2pdf-guide-knit},
leftlogo={theme/logoleft.pdf},
rightlogo={theme/logo-vert.pdf},
number=-1
}
\guidehdr
\bigskip
\ExplSyntaxOn % for experimenting
\prop_gclear:N \g_guide_authors_prop
\int_gzero:N \g_guide_authors_int
\ExplSyntaxOff
\guidesetup{%
author={
lastname=Author,
firstname=First,
affiliation=Title{,}~Institute,
[email protected]},
author={
lastname=Author,
firstname=Second,
affiliation=Title{,}~Institute,
[email protected]},
url={https://your.website.here.edu/guides},
title={A Title for Skeleton Template: rnw2pdf-guide-knit},
leftlogo={theme/logoleft.pdf},
rightlogo={theme/logo-vert.pdf},
number=20
}
\guidehdr
\end{document}
