Iterate over a breadcrumb with Jade to include 'current' page and disabled states after the current page.

gistfile1.txt

//- The breacrumb text and links
-var menu = { 'item 1': '#', 'item 2': '#', 'item 3': '#', 'item 4' : '#', 'item 5':  '#'}

//- Allow us to override this within a child template
block vars
    -var selected = 'item 1' //- default
    -var enabled = true //- Use links until changed to disabled, then use divs

ol.breadcrumb
  each val, key in menu
    li.breadcrumb-item
      if selected === key
          -var enabled = false
          div.breadcrumb-inner.breadcrumb-current
              span.breadcrumb-text #{key}
      else
          if enabled === false
              div.breadcrumb-inner
                  span.breadcrumb-text #{key}
          else 
              a.breadcrumb-inner.breadcrumb-link(href=val, title=key)
                  span.breadcrumb-text #{key}