Re: more fun with pandoc lua

["'rufus42' via pandoc-discuss" <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>]

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Hello fiddlosopher,

thank you very much for your answer.
Great, it works!
(Must definitely look into the potential of Lua filters...).

Thanks for your time and best regards

fiddlosopher schrieb am Dienstag, 24. Januar 2023 um 22:28:10 UTC+1:

> This is using the new pandoc 3.0 feature which allows pandoc to be used as 
> a Lua interpreter.  So just save the file as rosetta.lua and then;
>
> pandoc lua rosetta.lua
>
>
> On Jan 24, 2023, at 1:17 PM, 'rufus42' via pandoc-discuss <
> pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> wrote:
>
> 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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