PS
# `VariableDPV.m4'
cct_init

define(`elen_',dimen_); down_
[ { variable(`resistor',A) }; {"svg_tt(A)" at last line.end below}; move right
 { variable(`resistor',N) }; {"svg_tt(N)" at last line.end below}; move right
 { variable(`resistor',uN) }; {"svg_tt(uN)" at last line.end below}; move right
 { variable(`resistor',NN) }; {"svg_tt(uN)" at last line.end below}; move right
 { variable(`resistor',uNN) }; {"svg_tt(uNN)" at last line.end below}
 ]
[
 skp = 0.4
 hskip = linewid*0.5
 cskip = hskip
Orig: Here
 { move right cskip+elen_+hskip
   line invis right_ elen_ "svg_tt(C)"; move right_ hskip
   { move up_ 0.25 }
   line invis right_ elen_ "svg_tt(S)" }
 Loopover_(`char',
  `move down skp ifelse(char,A,*0.5)
   { line invis right_ cskip "svg_tt(char)"
     variable(`capacitor(,C)',char); move right_ hskip
     variable(`capacitor(,C)',char`'C); move right_ hskip
     variable(`capacitor(,C)',char`'S) }',
  A,P,L,N)
 ] with .w at last [].e+(0.4,0)
PE