Just playing. Gives `gettext` its own HTML tags.

gettext_erb_html.rb

# Just playing (based on https://twitter.com/tenderlove/status/1175527260671107072)

require 'nokogiri'
require 'erb'
require 'gettext'

class ErbHtml
  include GetText # I have no dea how to use this gem :shrug:
  
  # Based on their example: https://github.com/ruby-gettext/gettext/blob/2fae9e520a578df4d5716712fd8b78953f4076f3/lib/gettext.rb#L184
  LOCALIZATION = {
    apples:  ["Apple",  "%{num} Apples"],
    bananas: ["Banana", "%{num} Bananas"],
    kiwis:   ["Kiwi",   "%{num} Kiwis"],
  }

  def initialize(template)
    @erb = ERB.new(template, trim_mode: '-<>')
  end

  def render(bnd)
    doc = Nokogiri::HTML.fragment @erb.result bnd
    doc.css('n_').each do |element|
      num = element.inner_text.to_i
      key = element['key'].intern
      str = n_(LOCALIZATION.fetch(key), num) % { num: num }
      element.replace str
    end
    doc.to_html
  end
end

fruits = {apples: 3, bananas: 1, kiwis: 13}
ErbHtml.new(<<~HTML).render(binding)
<ul>
  <% fruits.each do |fruit, quantity| -%>
    <li>
      <n_ key="<%= fruit %>">
        <%= quantity %>
      </n_>
    </li>
  <% end %>
</ul>
HTML
# => "<ul>\n" +
#    "      <li>\n" +
#    "      3 Apples\n" +
#    "    </li>\n" +
#    "      <li>\n" +
#    "      Banana\n" +
#    "    </li>\n" +
#    "      <li>\n" +
#    "      13 Kiwis\n" +
#    "    </li>\n" +
#    "  \n" +
#    "</ul>\n"