[question] future plans

[yyoncho]

After implementing highlights what are your plans for the emacs-tree-sitter?

I am particularly interested in implementing operations over the AST in the spirit of smartparens/paredit.

[ubolonton]

In addition to highlighting, I want to first focus on packaging, so it can be distributed without requiring others to build from source.

After that, I'm thinking about making a new language major mode that relies entirely on tree-sitter (instead of regexes), both as an experimentation, and as a reference for others to start using tree-sitter. My first choice right now would be a replacement for terraform-mode, with code navigation (using tree-sitter to build a project-wide index).

I am particularly interested in implementing operations over the AST in the spirit of smartparens/paredit.

This is a cool idea, but I think trying to make a generic implementation right away is pretty hard. For each non-Lisp language, the types of node that these smart operations should act on would be different, and the set of interesting operations may be different as well. In addition to some core logic, there would be language-specific stuff (which may be made to be declarative, similar to how Atom uses CSS to map nodes to highlighting classes). IMO, experimenting with language-specific structural editing modes first will make it easier to define a generalized core.

[yyoncho]

For each non-Lisp language, the types of node that these smart operations should act on would be different, and the set of interesting operations may be different as well. In addition to some core logic, there would be language-specific stuff (which may be made to be declarative, similar to how Atom uses CSS to map nodes to highlighting classes). IMO, experimenting with language-specific structural editing modes first will make it easier to define a generalized core.

Yes, this is exactly what I am looking for. If you don't mind I would like to put some effort into that. Please let me know whether you want that to be part of this project/repo or in a separate one.

[yyoncho]

After that, I'm thinking about making a new language major mode that relies entirely on tree-sitter (instead of regexes), both as an experimentation, and as a reference for others to start using tree-sitter.

I think that at some point there could be a generic mode which uses tree-sitter for highlighting and language server for semantic highlights.

See emacs-lsp/lsp-mode#999

[ubolonton]

If you don't mind I would like to put some effort into that.

Yeah sure, that would be great!

Please let me know whether you want that to be part of this project/repo or in a separate one.

I think a separate repo is better, as it would have more freedom for experimentation. Just let me know if you need help with the APIs, or have suggestions on adding more core functions.