!set arrows=!record 0 of expldir
!set src=rankdir=LR;\
node [style = filled];\
$arrows
!set cnt=!recordcnt expldir
!for j=1 to $cnt
!set l=!record $j of expldir
!set src=$src\
$(l[1])
!if _1 isin $(l[1]) or _2 isin $(l[1])
!set label=!replace internal _1 by in $(l[1])
!set label=!replace internal _2 by in $label
!set complement=label="$label";
!endif
!if $(l[2])!=$empty
!set complement=$(complement)tooltip="$(l[2..-2])"
!endif
!if $(l[-1])!=$empty
!set complement=$(complement)URL="$(l[-1])" target="wims_internal"
!endif
!if $complement!=$empty
!set src=$src[$complement]
!endif
!set src=digraph{$src}
!set graphviz_output=svg
!set swout1
=!exec graphviz
$src !!set swout1=!item 1 of $swout1
!set swoutcnt=!linecnt $swout1
!for l=7 to $swoutcnt
!set gs=!line $l of $swout1
!if __plain isin __$gs
!break
!endif
!set swout=!append line $gs to $swout
$swout