XXX: Why o Why!

• $elt->first_child( 'title')

• $elt->first_child( 'p[@class="title"]')

• $elt->first_child( 'p[text()= "Definitions"]'

• $elt->first_child( 'p[@class="title" and @level < 2]')

• $section->first_child( 'title[text()="Definitions" and @level=2]')

• ...

• It started simple, but eventually grew out of control

• No one ever complained about it.