chroma VS prism.el

In Hugo and its built-in Chroma syntax highlighting, a code block begins with:

Hugo -> goldmark -> goldmark-highlighting -> chroma

I've used a markdown to html converter to convert my blog posts into HTML with very nice and customizable code samples... in my case I used Go's Blackfriday library with bfchroma[1] doing syntax highlighting with Chroma[2]. To add your language to Chroma you have to provide a lexer, which in turn is written in Pygments[3] syntax.

[1] https://github.com/Depado/bfchroma/

[2] https://github.com/alecthomas/chroma#supported-languages

[3] https://pygments.org/docs/lexerdevelopment/

quick for generating Html and syntax highlighting code blocks

Chroma

For books from other publishers, I am just hardcoding language directly on an ad hoc basis. I briefly considered off-loading language detection to a library like chroma, but that might be too much work for little benefit.

Great blog, you should definitely do research on how you could implement a syntax highlighter for the code parts. Go Hugo for example, uses Chroma. Nice work 👍

Heh, seriously, though, it's not necessary to use a rainbow of colors. You can use any number of colors and rotate through them. For example, this uses just 3 colors, gradually desaturating them as the depth increases. Since each color is easily distinguished from the other 2, it makes code very readable: https://github.com/alphapapa/prism.el/raw/master/images/parens-0.5.png

If you can use tree-sitter, that's obviously a good choice. Alternatively, you can see how I implemented https://github.com/alphapapa/prism.el, which isn't regexp-based, using Emacs's built-in syntax parsing instead.

I did some experimenting with supporting XML directly in https://github.com/alphapapa/prism.el/issues/16. It seems that it's not easily done with existing Emacs SGML-related functions, but I'm guessing that tree-sitter will help a lot in Emacs 29.

It's not exactly what you asked for, but you may also find this useful: https://github.com/alphapapa/prism.el It can highlight parens distinctly too.

As examples, I can recommend code in https://github.com/alphapapa/highlight-function-calls (simple) and https://github.com/alphapapa/prism.el (more complex).

There is also the package prism.el.

The best advice I can offer is to carefully and repeatedly study the Elisp manual section on font-lock, and to model on the source code of a similar project. The most I've done with it is in https://github.com/alphapapa/prism.el

There is one for emacs. Could be good inspo if someone wanted to make a VSCode version.

https://github.com/alphapapa/prism.el

You might be interested in https://github.com/alphapapa/prism.el