##
open file.xml ;
for //book
echo (title)
edition (edition)
by (authors/author/firstname | authors/author/lastname)
'(' isbn (isbn) ')' ;
##
##
($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,