latex - 来自 src block 的多行 latex 标题

Question

我有几行应该添加到 \begin{document} 之前。通常，我使用 #+LATEX_HEADER: 来做到这一点。但是，#+LATEX_HEADER: 无法计算引用(例如 noweb)或 org 宏。我能看到的唯一解决方案是在每一行之前添加 #+LATEX_HEADER: 。有没有更优雅的方式来做到这一点？

我的“理想”组织文件(不工作):

#+TITLE: Title
#+AUTHOR: Someone

#+LATEX_CLASS: article

#+LATEX_HEADER: <<headerthings>>

* First Section
Lorem Ipsum is simply dummy text of the printing and typesetting
industry. Lorem Ipsum has been the industry's standard dummy text ever
since the 1500s, when an unknown printer took a galley of type and
scrambled it to make a type specimen book. 

* header things                                                    :noexport:
#+name: headerthings
#+begin_src latex
\somemacro{
Morbi rutrum eros 
luctus. Maecenas n
nunc nec vulputate
diam in urna. Susp
gravida nisl a lor
ullamcorper sodalet
per conubia nostra
eros. In mollis el
convallis laoreet.
efficitur aliquet 
}
#+end_src

非优雅的工作解决方案:

#+TITLE: Title
#+AUTHOR: Someone

#+LATEX_CLASS: article

#+LATEX_HEADER: <<headerthings>>

* First Section
Lorem Ipsum is simply dummy text of the printing and typesetting
industry. Lorem Ipsum has been the industry's standard dummy text ever
since the 1500s, when an unknown printer took a galley of type and
scrambled it to make a type specimen book. 

* header things                                                    :noexport:
#+LATEX_HEADER: \somemacro{
#+LATEX_HEADER: Morbi rutrum eros 
#+LATEX_HEADER: luctus. Maecenas n
#+LATEX_HEADER: nunc nec vulputate
#+LATEX_HEADER: diam in urna. Susp
#+LATEX_HEADER: gravida nisl a lor
#+LATEX_HEADER: ullamcorper sodalet
#+LATEX_HEADER: per conubia nostra
#+LATEX_HEADER: eros. In mollis el
#+LATEX_HEADER: convallis laoreet.
#+LATEX_HEADER: efficitur aliquet 
#+LATEX_HEADER: }

Answer 1

这对我有用(组织模式版本 9.1.2)

#+TITLE: Title
#+CALL: my_latex_header()

* Your section 1
* Your section 2 
* Configuration                                                    :noexport:
#+NAME: my_latex_header
#+BEGIN_SRC emacs-lisp :results drawer 
(mapconcat (function (lambda(x) (format "#+LATEX_HEADER: %s" x)))
       '( 
         "% line_1"
         "% line_2"
         "% line_3"
         )
       "\n")
#+END_SRC

导出的 LaTeX 文件是(用我的配置)

% Created 2020-07-02 Thu 06:17
% Intended LaTeX compiler: pdflatex
\documentclass[11pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{graphicx}
\usepackage{grffile}
\usepackage{longtable}
\usepackage{wrapfig}
\usepackage{rotating}
\usepackage[normalem]{ulem}
\usepackage{amsmath}
\usepackage{textcomp}
\usepackage{amssymb}
\usepackage{capt-of}
\usepackage{hyperref}
% line_1
% line_2
% line_3
\author{picaud}
\date{\today}
\title{Title}
\hypersetup{
 pdfauthor={picaud},
 pdftitle={Title},
 pdfkeywords={},
 pdfsubject={},
 pdfcreator={Emacs 26.1 (Org mode 9.1.2)}, 
 pdflang={English}}
\begin{document}

\maketitle
\tableofcontents
    
\section{Your section 1}
\label{sec:orgcfaa171}
\section{Your section 2}
\label{sec:orgead0a5c}
\end{document}