Citum: a new citation processor with experimental support for the Djot syntax

[bdarcus]

I've mentioned this in #32 and #343, but it's all more fully-developed, and now published. The post has a section on the Djot support.

https://citum.org/news/citum-is-on-crates-io-and-jsr-io.html

Hoping it can serve as a test bed of sorts for the djot issues.

More at:

https://docs.citum.org/guides/integrations/djot.html

That page currently just covers the basics, but there's more detail still at the engine crate README:

https://github.com/citum/citum-core/tree/main/crates/citum-engine

And here's an example using YAML front-matter to configure bibliography grouping:

https://github.com/citum/citum-core/blob/main/examples/document-frontmatter.djot

The CLI embeds a number of widely used styles and locales files, and it can read CSL JSON and biblatex bib files, so you can get started playing with it quickly; here's how you process that document, for example, from the repo root directory:

citum render doc -s apa -b examples/comprehensive.yaml examples/document-frontmatter.djot

[dereuromark]

Awesome, I followed your example and provided php-collective/djot-php#193
It is purely opt-in via extension, so default setups would not have it without explicitly enabling it
=> https://php-collective.github.io/djot-php/extensions/#citationsextension