elixir-lang / tree-sitter-iex Goto Github PK

It would be great to integrate this grammar for GitHub highlighting. Note that this grammar is not likely to be used in files, but it would be useful for highlighting Markdown snippets, like this:

We first compute square of the numbers:

```iex
iex> list = Enum.map([1, 2, 3], fn x -> x * x end)
[1, 4, 9]
```

And that's how we would sum them up:

```iex
iex> Enum.sum(list)
14
```

@patrickt please let us know if you're open to integrating more specific grammars like this one.

We can host playground on GH pages and have CI updating the parser file. When we get to a nice setup we can do the same on tree-sitter-elixir.

Large IEx results may be formatted into multiple lines, for example:

iex> quote do
...>   Enum.map(x, &(&1 + 1))
...> end
{{:., [], [{:__aliases__, [alias: false], [:Enum]}, :map]}, [],
 [
   {:x, [if_undefined: :apply], Elixir},
   {:&, [], [{:+, [context: Elixir, import: Kernel], [{:&, [], [1]}, 1]}]}
 ]}

================================================================================
Multiline results
================================================================================

iex> quote do
...>   Enum.map(x, &(&1 + 1))
...> end
{{:., [], [{:__aliases__, [alias: false], [:Enum]}, :map]}, [],
 [
   {:x, [if_undefined: :apply], Elixir},
   {:&, [], [{:+, [context: Elixir, import: Kernel], [{:&, [], [1]}, 1]}]}
 ]}

--------------------------------------------------------------------------------

(source
  (evaluation_block
    (prompt_line
      (prompt)
      (expression))
    (prompt_line
      (prompt)
      (expression))
    (prompt_line
      (prompt)
      (expression))
    (result)))

I'm pretty sure we will need to write a C scanner for this 🙈

• I am using neovim and nvim-treesitter
• I followed the advanced setup for installing a non-maintained parser

Appears installed:

Treesitter lua conf:

local parser_config = require "nvim-treesitter.parsers".get_parser_configs()
parser_config.iex = {
  install_info = {
    url = "~/projects/tree-sitter-iex", -- local path or git repo
    -- url = "[email protected]:elixir-lang/tree-sitter-iex.git", -- local path or git repo
    files = {"src/parser.c"}
  },
--  filetype = "zu", -- if filetype does not agrees with parser name
--  used_by = {"bar", "baz"} -- additional filetypes that use this parser
}

I think the problem has to do with the filetype, once we sort this I would be happy to add some extra docs into the readme about how to install/use this.