HEEX formatter adds a line break in generated html?

Chat & Discussions Discussions
, , , ,
4

Sure, here is what the html looks like in both cases:

$ elixir heexformat.exs
next_line: "<a href=\"/i\">\n  next line\n</a>,\n" <<<<< notice \n just before the closing </a> and ","
same_line: "<a href=\"/i\">\n  same line</a>,\n"

, where heexformat.exs is

Mix.install(
  [
    {:jason, "~> 1.4"},
    {:phoenix, "~> 1.6"},
    {:phoenix_live_view, "~> 0.18.3"}
  ],
  config: [
    phoenix: [json_library: Jason]
  ]
)

defmodule HeexFormatTest do
  use Phoenix.HTML
  import Phoenix.Component, only: [sigil_H: 2]

  def to_text(h) do
    h
    |> Phoenix.HTML.Safe.to_iodata()
    |> List.to_string()
  end

  def generate_html_next_line() do
    assigns = %{}

    ~H"""
    <%= link to: "/i", method: :get do %>
      <%= "next line" %>
    <% end %>,
    """
  end

  def generate_html_same_line() do
    assigns = %{}

    ~H"""
    <%= link to: "/i", method: :get do %>
      <%= "same line" %><% end %>,
    """
  end
end

HeexFormatTest.generate_html_next_line() |> HeexFormatTest.to_text() |> IO.inspect(label: :next_line)
HeexFormatTest.generate_html_same_line() |> HeexFormatTest.to_text() |> IO.inspect(label: :same_line)