     # of pages for that series.
     for filename, file of files
       if not file.series? then continue
-      
+
       if not file['series-index']?
         console.warn "File #{filename} of series #{file.series}
           is missing the `series-index` metadata. Defaulting to 1"

#
# # Series
#
# 




      # into the index. If it doesn't exist, we just assign the index
      # manually.
      #
      # This is done to ensure page order for the series, rather than pushing
      # then all and then sorting them after.
      if series[index]? then series.splice index, 0, file
      else series[index] = file
