Merge pull request #5136 from Meet-Democracy/Legislation-draft-render-markdown-tables

Render markdown tables in legislation draft

lib/admin_legislation_sanitizer.rb

@@ -1,6 +1,6 @@
 class AdminLegislationSanitizer < WYSIWYGSanitizer
   def allowed_tags
-    super + %w[img h1 h4 h5 h6]
+    super + %w[img h1 h4 h5 h6 table thead tbody tr th td]
   end
 
   def allowed_attributes

lib/markdown_converter.rb

@@ -0,0 +1,48 @@
+class MarkdownConverter
+  attr_reader :text, :render_options
+
+  def initialize(text, **render_options)
+    @text = text
+    @render_options = render_options
+  end
+
+  def render
+    return text if text.blank?
+
+    AdminLegislationSanitizer.new.sanitize(Redcarpet::Markdown.new(renderer, extensions).render(text))
+  end
+
+  def render_toc
+    Redcarpet::Markdown.new(toc_renderer).render(text)
+  end
+
+  private
+
+    def renderer
+      Redcarpet::Render::HTML.new(default_render_options.merge(render_options))
+    end
+
+    def toc_renderer
+      Redcarpet::Render::HTML_TOC.new(with_toc_data: true)
+    end
+
+    def default_render_options
+      {
+        filter_html:     false,
+        hard_wrap:       true,
+        link_attributes: { target: "_blank" }
+      }
+    end
+
+    def extensions
+      {
+        autolink:           true,
+        fenced_code_blocks: true,
+        lax_spacing:        true,
+        no_intra_emphasis:  true,
+        strikethrough:      true,
+        superscript:        true,
+        tables:             true
+      }
+    end
+end