class Canon::Diff::DiffClassifier

def formatting_only_diff?(diff_node)
  # Only apply formatting detection to actual text content differences
  # If the nodes are not text nodes (e.g., element nodes), don't apply formatting detection
  node1 = diff_node.node1
  node2 = diff_node.node2
  # Check if both nodes are text nodes
  # If not, this is not a formatting-only difference
  return false unless text_node?(node1) && text_node?(node2)
  text1 = extract_text_content(diff_node.node1)
  text2 = extract_text_content(diff_node.node2)
  # For text_content dimension, use normalized text comparison
  # This handles cases like "" vs "   " (both normalize to "")
  if diff_node.dimension == :text_content
    normalized_equivalent?(text1, text2)
  else
    FormattingDetector.formatting_only?(text1, text2)
  end
end