Autumn - Syntax highlighter powered by Tree-sitter and Neovim themes.

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Autumn is a syntax highlighter powered by Tree-sitter and Neovim themes.

You can check out how it looks like at https://autumnus.dev/

Features

  • :rocket: Backed by a Rust library
  • :deciduous_tree: 60+ languages
  • :art: 100+ Neovim themes
  • :memo: Formatters: html inline, html linked, terminal
  • :mag: Language auto-detection
10 Likes
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It have even terminal formatter, amazing!

Can it detect if a call is a macro or function call? It would be amazing to style DSL and function call differently.

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Hi @Eiji

I don’t think the Elixir parser does such distinction:

❯ cat example.ex
1 |> then(fn x -> x * 2 end)

❯ autumn dump-tree-sitter example.ex
source (0, 0) - (1, 0)
  binary_operator (0, 0) - (0, 28)
    integer (0, 0) - (0, 1) "1"
    |> (0, 2) - (0, 4) "|>"
    call (0, 5) - (0, 28)
      identifier (0, 5) - (0, 9) "then"
      arguments (0, 9) - (0, 28)
        ( (0, 9) - (0, 10) "("
        anonymous_function (0, 10) - (0, 27)
          fn (0, 10) - (0, 12) "fn"
          stab_clause (0, 13) - (0, 23)
            arguments (0, 13) - (0, 14)
              identifier (0, 13) - (0, 14) "x"
            -> (0, 15) - (0, 17) "->"
            body (0, 18) - (0, 23)
              binary_operator (0, 18) - (0, 23)
                identifier (0, 18) - (0, 19) "x"
                * (0, 20) - (0, 21) "*"
                integer (0, 22) - (0, 23) "2"
          end (0, 24) - (0, 27) "end"
        ) (0, 27) - (0, 28) ")"

So that then (macro call) is highlighted as function.call as defined in the query from nvim-treesitter:

❯ autumn highlight example.ex --formatter html-linked
<pre class="athl"><code class="language-elixir" translate="no" tabindex="0"><span class="line" data-line="1"><span class="number">1</span> <span class="operator">|&gt;</span> <span class="function-call">then</span><span class="punctuation-bracket">(</span><span class="keyword">fn</span> <span class="variable">x</span> <span class="operator">-&gt;</span> <span class="variable">x</span> <span class="operator">*</span> <span class="number">2</span> <span class="keyword">end</span><span class="punctuation-bracket">)</span>
</span></code></pre>
1 Like
4

It is impossible to do with just parser, it would need to be full evaluator, especially that it requires to know about the called module.

3 Likes