# File lib/prawn/outline.rb, line 147 def insert_section_after(title, &block) @prev = items[title] if @prev @parent = @prev.data.parent nxt = @prev.data.next if block block.arity < 1 ? instance_eval(&block) : block[self] end adjust_relations(nxt) else raise Prawn::Errors::UnknownOutlineTitle, "\n No outline item with title: '#{title}' exists in the outline tree" end end