index_actor.scrub {multi|<actor|>|</actor>|</actor>}
index_temp_6.scrub {multi|<actor role="||">|">}
index_temp_2.modify {set|0} 
index_loop{(each "index_temp_3" in 'index_actor')|end} 
index_temp_4.modify {substring(type=element)|'index_temp_6' 'index_temp_2' 1} 
index_temp_4.modify {addstart(not "")|(role=} 
index_temp_4.modify {addend(~ "role=")|)} 
index_temp_5.modify {addend|'index_temp_3''index_temp_4'##} 
index_temp_2.modify {calculate(format=F0)|1 +} 
end_loop 
index_actor.modify {set|'index_temp_5'} 
index_actor.modify {replace|##|\|}