text: """Special pages such as the recent changes page."""
  from .actions import page_missing
  from .database import Page
  from .database import RevisionedPage
  from .utils import generate_template
  from .utils import Pagination
  from .utils import Response
  
  
  def page_index(request):
      """Index of all pages."""
      letters = {}
      for page in Page.query.order_by(Page.name):
          letters.setdefault(page.name.capitalize()[0], []).append(page)
      return Response(
          generate_template("page_index.html", letters=sorted(letters.items()))
      )
  
  
  def recent_changes(request):
      """Display the recent changes."""
      page = max(1, request.args.get("page", type=int))
      query = RevisionedPage.query.order_by(RevisionedPage.revision_id.desc())
      return Response(
          generate_template(
              "recent_changes.html",
              pagination=Pagination(query, 20, page, "Special:Recent_Changes"),
          )
      )
  
  
  def page_not_found(request, page_name):
      """
      Displays an error message if a user tried to access
      a not existing special page.
      """
      return page_missing(request, page_name, True)
  
  
  pages = {"Index": page_index, "Recent_Changes": recent_changes}
  