Silver Foiling Business Cards

@@ -203,7 +203,8 @@ def headers
  def field(header_or_index, minimum_index = 0)
  # locate the pair
  finder = (header_or_index.is_a?(Integer) || header_or_index.is_a?(Range)) ? :[] : :assoc
- pair = @row[minimum_index..-1].public_send(finder, header_or_index)
+ # Array#[] returns nil, not [], once the offset is past the end
+ pair = (@row[minimum_index..-1] || []).public_send(finder, header_or_index)
 
  # return the field if we have a pair
  if pair.nil?
@@ -572,7 +573,7 @@ def fields(*headers_and_or_indices)
  # row.index('Name', 3) # => nil
  def index(header, minimum_index = 0)
  # find the pair
- index = headers[minimum_index..-1].index(header)
+ index = (headers[minimum_index..-1] || []).index(header)
  # return the index at the right offset, if we found one
  index.nil? ? nil : index + minimum_index
  end

Short Story Fiction Writing Guide Book

@@ -73,6 +73,13 @@ def test_field
  assert_equal(4, @row.field("A", 3))
  assert_equal(nil, @row.field("A", 4))
  assert_equal(nil, @row.field("A", 5))
+
+ # offset past the end of the row
+ assert_nil(@row.field("A", 6))
+ assert_nil(@row.field("A", 100))
+ assert_nil(@row["A", 6])
+ assert_nil(@row.index("A", 6))
+ assert_equal([nil], @row.values_at(["A", 6]))
  end
 
  def test_fetch