latex - pandoc "titleformat"标尺

Question

我对 YAML 数据 block 有疑问。给定以下 pandoc 文档:

---
papersize: a4
geometry: "left=1.5cm,right=1.5cm,top=3cm,bottom=3cm"
fontsize: 12pt
# https://stackoverflow.com/a/43659664/2069099
subparagraph: yes
#documentclass: extarticle
header-includes:
    - \usepackage[explicit]{titlesec}
    - \titleformat{\section}[hang] {\filleft\huge\sc} {label}{20pt}{#1}

---

Hello World
=========== 

Lorem ipsum

我正确地将标题对齐到右侧。现在，假设我需要标题下方有一个全角标尺，如 https://tex.stackexchange.com/a/84062 中所述。 ，需要将\titleformat语句修改为:

---
papersize: a4
geometry: "left=1.5cm,right=1.5cm,top=3cm,bottom=3cm"
fontsize: 12pt
# https://stackoverflow.com/a/43659664/2069099
subparagraph: yes
#documentclass: extarticle
header-includes:
    - \usepackage[explicit]{titlesec}
    - \titleformat{\section}[hang] {\filleft\huge\sc} {label}{20pt}{#1}[\titlerule\vspace*{4pt}]

---

Hello World
===========    

Lorem ipsum

但这会导致以下错误:

Error producing PDF.
! LaTeX Error: Missing \begin{document}.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...

l.49 {[

事实上，tex 文件显示了奇怪的代码:

...
\usepackage[explicit]{titlesec}
\titleformat{\section}[hang] {\filleft\huge\sc} {label}{20pt}{#1}

{[}\titlerule\vspace*{4pt}{]}

\date{}

\begin{document}
...

Answer 1

好的，在 YAML block 中传递普通 Latex 解决了问题:

--
papersize: a4
geometry: "left=1.5cm,right=1.5cm,top=3cm,bottom=3cm"
fontsize: 12pt
# https://stackoverflow.com/a/43659664/2069099
subparagraph: yes
#documentclass: extarticle
header-includes:
  - \usepackage[explicit]{titlesec}
  - |
    ```{=latex}
    \titleformat{\section}[hang] {\filleft\huge\sc} {label}{20pt}{#1}[\titlerule\vspace*{4pt}]
    ```  
---

Hello World
===========    

Lorem ipsum