From https://once.com/writebook

app/helpers/pages_helper.rb

@@ -0,0 +1,14 @@
+module PagesHelper
+  def word_count(content)
+    return if content.blank?
+    pluralize number_with_delimiter(content.split.size), "word"
+  end
+
+  def page_title(leaf, book)
+    [ leaf.title, book.title, book.author ].reject(&:blank?).to_sentence(two_words_connector: " · ", words_connector: " · ", last_word_connector: " · ")
+  end
+
+  def sanitize_content(content)
+    sanitize content, scrubber: HtmlScrubber.new
+  end
+end