<sharedby> <user v="__TAG__('iw_contributor2');" /></sharedby>
<sharedby> <user v="__INSERT__($iw_contributor2);" /></sharedby>
# Assuming looping won't workmy $sharedby = "";my $tmp = __VALUE__('iw_contrib1');$sharedby .= "<user v='$tmp'/>" if $tmp;$tmp = __VALUE__('iw_contrib2');$sharedby .= "<user v='$tmp'/>" if $tmp;$tmp = __VALUE__('iw_contrib3');$sharedby .= "<user v='$tmp'/>" if $tmp;...# And this assumes looping WILL workmy $sharedby = "";for(my $i = 1; $i <= 5; $i++) { my $tmp = __VALUE__("iw_contrib$i"); $sharedby .= "<user v='$tmp'/>" if $tmp;}
<sharedby>__INSERT__($sharedby);</sharedby>