Add support for asciidoctorj for qute-web-asciidoc extension

[mcruzdev]

We are currently developing an extension called qute-web-asciidoc, which utilizes a pure Java library behind the scenes to convert AsciiDoc to HTML. While the library is efficient and lightweight, it lacks some of the advanced features offered by AsciidoctorJ.

Our goal is to enable switching between both implementations, providing flexibility depending on the specific needs or feature requirements of the project.

[mcruzdev]

@mkouba @maxandersen will we use a config like quarkus.datasource.db-kind=postgresql does?

[mkouba]

I'm not sure to be honest. We could create a separate extension - qute-web-asciidoctorj that would depend on qute-web-asciidoc and "deactivate" the default implementation based on asciidoc-java.

[gsmet]

I recently stumbled upon https://github.com/fluorumlabs/asciidocj which might be a good component for pure Java Asciidoc transformation.

What I liked (and what I was looking for) is that it has an actual parser and it seems to compare its output with the reference impl in the tests.

Now it doesn't look actually maintained but it might be a good lightweight alternative to using JRuby.

To give some context about what I was looking for: I want to implement a lightweight Asciidoc -> Markdown transformation and I was looking for components that might help.
The parser here could be a good base for this work except it actually already transforms things to HTML while parsing so I somehow need to change it to not be HTML-based.

/cc @jtama

[gsmet]

And if someone is interested in collaborating on a component that could output both HTML and Asciidoc (agnostic parser) based on fluorumlabs/asciidocj and then have the ability to output in whatever format, I'm all ears as I have been very time-constrained lately :)

I have a few ideas but didn't have the time to go beyond that.

That being said, even without this work fluorumlabs/asciidocj could be a good alternative as it outputs HTML, which is what you want.

[jtama]

Maybe this is what you're looking for : https://github.com/opendevise/downdoc. It's not java, but it does converts asciidoc to markdown.

I don't have much time either.

[gsmet]

Yeah I know about this one but as you say, it's not Java :). And the code is far from being easily adaptable to Java.

[gsmet]

But if I were you, I would just give a try to the component I pointed above. It might be a lot better than the component you are using at the moment (at least that was my impression when I was doing my research) and it should be usable out of the box for what you want to achieve.