Support for inline LiveView templates

[egze]

What is the right place to add support for inline templates?

Here is an example:

defmodule AppWeb.ThermostatLive do
  use Phoenix.LiveView

  def render(assigns) do
    ~L"""
    <div class="widget">
      Current temperature: <string><%= @temperature %></strong>
    </div>
    """
  end

  def mount(_params, %{"current_user_id" => user_id}, socket) do
    temperature = Thermostat.get_user_reading(user_id)
    {:ok, assign(socket, :temperature, temperature)}
  end
end

Ideally I would like the part inside the sigil to be highlighted as eex html template.

[josevalim]

This is certainly the repo but I am not quite sure how to implement it. Perhaps look at how other languages do something similar. I think Ruby for example does <<-SQL and so on. A PR is welcome!

[egze]

Cool, I'll look into it. Thanks

[ankopainting]

This might help :)
https://github.com/drnic/ruby-tmbundle/blob/686d46d86deefafaa4077346f829ad335216ec94/Syntaxes/Ruby.plist#L1770-L1816

[ericsongray]

Did you figure it out? VS Code is the only editor I know of that currently does it.

[egze]

I started and made this https://gist.github.com/egze/07721af578b18d349f0e8571f115d6aa

But it is buggy. Doesn't highlight properly stuff like <p><%= @something %></p>, so a mix of html and elixir code. After some trial and error - I gave up. The development process of making a Syntax highlighter in TextMate is insanely wonky, with not a lot of documentation.

Maybe there is a good tool where you can load existing syntax rules and then see the effect, as you make changes? I found https://eeyo.io/iro/ but also couldn't figure out how to import existing Elixir rules. If this is even possible.

[ericsongray]

I prefer Sublime over VS code and Atom but I agree extending syntax highlighting is a real pain. I think @josevalim and @ankopainting had the right idea but I don't have the know how to implement it. Thanks for your effort.