Issue #310 fixed. Refactored code to use a single method to know if a tag page should be displayed.

kaminari-core/app/views/kaminari/_paginator.html.erb

@@ -11,7 +11,7 @@
     <%= first_page_tag unless current_page.first? %>
     <%= prev_page_tag unless current_page.first? %>
     <% each_page do |page| -%>
-      <% if page.left_outer? || page.right_outer? || page.inside_window? -%>
+      <% if page.display_tag? -%>
         <%= page_tag page %>
       <% elsif !page.was_truncated? -%>
         <%= gap_tag %>

kaminari-core/app/views/kaminari/_paginator.html.haml

@@ -10,7 +10,7 @@
     = first_page_tag unless current_page.first?
     = prev_page_tag unless current_page.first?
     - each_page do |page|
-      - if page.left_outer? || page.right_outer? || page.inside_window?
+      - if page.display_tag?
         = page_tag page
       - elsif !page.was_truncated?
         = gap_tag

kaminari-core/app/views/kaminari/_paginator.html.slim

@@ -11,7 +11,7 @@
     == first_page_tag unless current_page.first?
     == prev_page_tag unless current_page.first?
     - each_page do |page|
-      - if page.left_outer? || page.right_outer? || page.inside_window?
+      - if page.display_tag?
         == page_tag page
       - elsif !page.was_truncated?
         == gap_tag

kaminari-core/lib/kaminari/helpers/paginator.rb

@@ -159,6 +159,11 @@ module Kaminari
           @last.is_a? Gap
         end
 
+        #Should we display the link tag?
+        def display_tag?
+          left_outer? || right_outer? || inside_window? || single_gap?
+        end
+
         def to_i #:nodoc:
           number
         end