Hi,

I'd like to make use of pandoc's header attributes (https://pandoc.org/MANUAL.html#extension-header_attributes) to inject a custom LaTeX \renewcommand{} definition in specific sections. My goal is to have a minimalist markdown file for my CV (no tables or raw LaTeX, just simple lists and #headers), and have a Lua filter identify which sections have specific formatting needs (e.g wrap inside a 3-column table), which will be taken care of by LaTeX.

Consider this input markdown,

# qualifications {#id1 .CV content=list}

## 2011 | can type, delete, copy and paste
## 2021 | can *format*, sometimes

# work in progress {#id2 .CV content=freetext}

## Beside lists, I am hoping to learn to format free text too, *someday*.

I would like to walk the AST, and immediately after headers with a specific attribute, inject a \renewcommand{} based on the header's attributes, such as (dummy example),

\renewcommand\subsection[1]{\textbf{#1}}

for sections with content=list and

\renewcommand\subsection[1]{\textit{#1}}

with content=freetext.

This is obviously a contrived example, the actual command I'm using is actually to split a sub-header and format it as a table (dates | job position | location) or various other tasks (e.g. changing emphasis colours for different sections etc.).

I'm not familiar enough with the pandoc AST or lua to figure this out; I looked at a related example ( noexport-subtrees.lua ) but here the situation is a bit different, as I need to create an additional element (raw tex string) and append it to the original header.

Many thanks,

baptiste