Hello fiddlosopher,

Thank you very much for sharing your script.
I would like to use it, but unfortunately I don't know how.
Do I use the script like a Lua filter?

Please be so kind and give me a hint how I can use your script.

Thank you for your time and best regards

fiddlosopher schrieb am Samstag, 21. Januar 2023 um 20:05:46 UTC+1:
-- This Lua script, when run using `pandoc lua`, will create an HTML 
-- file rosetta.html that compares how the same content is represented 
-- in all the text markup languages pandoc supports: 

local inp = [[ 
# Heading 

## level 2 

### level 3 

#### level 4 with attributes {.blue #foobar} 

- Unordered 
- list 

1. ordered 
2. list 

a) Lettered list 

with continuation paragraph 

> Block quote 

``` {.lua} 
local formats = pandoc.writers 
for format,_ in formats do 
print(format) 
end 
``` 

*emphasized text **with strong emphasis*** 

`verbatim text` and a [link with `verbatim`](http://example.com) 
]] 
local doc = pandoc.read(inp, "markdown") 

local formats = pandoc.writers 
-- remove binary formats: 
formats.docx = nil 
formats.pptx = nil 
formats.odt = nil 
formats.epub2 = nil 
formats.epub3 = nil 
formats.epub = nil 
formats.chunkedhtml = nil 
formats.biblatex = nil 
formats.bibtex = nil 
formats.csljson = nil 

local blocks = {} 

-- Table of code languages to use for highlighting, when it differs 
-- from the format name: 
local langs = { 
icml = "xml", 
jira = "xml", 
fb2 = "xml", 
docbook = "xml", 
docbook4 = "xml", 
docbook5 = "xml", 
commonmark = "markdown", 
commonmark_x = "markdown", 
context = "latex", 
dzslides = "html5", 
slideous = "html", 
slidy = "html", 
man = "troff", 
ms = "troff", 
gfm = "markdown", 
markdown_mmd = "multimarkdown", 
markdown_github = "markdown", 
revealjs = "html", 
beamer = "latex", 
ipynb = "json", 
opendocument = "xml", 
native = "haskell", 
html5 = "html", 
html4 = "html", 
} 

local sorted_formats = {} 
for format,_ in pairs(formats) do 
table.insert(sorted_formats, format) 
end 
table.sort(sorted_formats) 

-- construct document part for each format 
for _,format in ipairs(sorted_formats) do 
table.insert(blocks, pandoc.Header(2, format)) 
local lang = langs[format] or format 
table.insert(blocks, 
pandoc.CodeBlock(pandoc.write(doc, format), {class = lang})) 
end 

local template = pandoc.template.compile(pandoc.template.default("html5")) 
local html = pandoc.write(pandoc.Pandoc(blocks, 
{title = "Markup Rosetta Stone"}), 
"html5", 
{ template = template }) 

io.open("rosetta.html", "w"):write(html) 
print("Created rosetta.html") 

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