lib/rspreadsheet/xml_tied.rb in rspreadsheet-0.2.10 vs lib/rspreadsheet/xml_tied.rb in rspreadsheet-0.2.11

@@ -94,10 +94,11 @@
   end
   # vrátí item na souřadnici aindex
   def subitem(aindex)
     aindex = aindex.to_i
     if aindex.to_i<=0
-      nil # TODO> maybe optionally raise 'Item index should be greater then 0'
+      raise 'Item index should be greater then 0' if Rspreadsheet.raise_on_negative_coordinates
+      nil 
     else 
       @itemcache[aindex] ||= prepare_subitem(aindex)
     end
   end