Unescaping of net names on Spice reader -> writer/reader should be self-compatible.

testdata/algo/nreader5.cir

@@ -0,0 +1,23 @@
+* written by unit test
+
+* cell SUBCKT
+* pin 
+* pin A
+* pin V42
+* pin Z
+* pin gnd
+* pin gnd
+.SUBCKT SUBCKT \$1 A V42\x28\x25\x29 Z gnd gnd$1
+* device instance $1 r0 *1 0,0 HVPMOS
+XD_$1 V42\x28\x25\x29 \$3 Z \$1 HVPMOS PARAMS: L=0.2 W=1 AS=0.18 AD=0.18
++ PS=2.16 PD=2.16
+* device instance $2 r0 *1 0,0 HVPMOS
+XD_$2 V42\x28\x25\x29 A \$3 \$1 HVPMOS PARAMS: L=0.2 W=1 AS=0.18 AD=0.18
++ PS=2.16 PD=2.16
+* device instance $3 r0 *1 0,0 HVNMOS
+XD_$3 gnd \$3 gnd gnd$1 HVNMOS PARAMS: L=1.13 W=2.12 PS=6 PD=6 AS=0 AD=0
+* device instance $4 r0 *1 0,0 HVNMOS
+XD_$4 gnd \$3 Z gnd$1 HVNMOS PARAMS: L=0.4 W=0.4 PS=1.16 PD=1.16 AS=0.19 AD=0.19
+* device instance $5 r0 *1 0,0 HVNMOS
+XD_$5 gnd A \$3 gnd$1 HVNMOS PARAMS: L=0.4 W=0.4 PS=1.76 PD=1.76 AS=0.19 AD=0.19
+.ENDS SUBCKT

testdata/algo/nwriter12_au.txt

@@ -9,7 +9,7 @@
 * pin gnd
 .SUBCKT SUBCKT 1 2 4 5 6 7
 * net 2 A
-* net 4 V42
+* net 4 V42(%)
 * net 5 Z
 * net 6 gnd
 * net 7 gnd

testdata/algo/nwriter12b_au.txt

@@ -7,11 +7,13 @@
 * pin Z
 * pin gnd
 * pin gnd
-.SUBCKT SUBCKT \$1 A V42 Z gnd gnd$1
+.SUBCKT SUBCKT \$1 A V42\x28\x25\x29 Z gnd gnd$1
 * device instance $1 r0 *1 0,0 HVPMOS
-XD_$1 V42 \$3 Z \$1 HVPMOS PARAMS: L=0.2 W=1 AS=0.18 AD=0.18 PS=2.16 PD=2.16
+XD_$1 V42\x28\x25\x29 \$3 Z \$1 HVPMOS PARAMS: L=0.2 W=1 AS=0.18 AD=0.18
++ PS=2.16 PD=2.16
 * device instance $2 r0 *1 0,0 HVPMOS
-XD_$2 V42 A \$3 \$1 HVPMOS PARAMS: L=0.2 W=1 AS=0.18 AD=0.18 PS=2.16 PD=2.16
+XD_$2 V42\x28\x25\x29 A \$3 \$1 HVPMOS PARAMS: L=0.2 W=1 AS=0.18 AD=0.18
++ PS=2.16 PD=2.16
 * device instance $3 r0 *1 0,0 HVNMOS
 XD_$3 gnd \$3 gnd gnd$1 HVNMOS PARAMS: L=1.13 W=2.12 PS=6 PD=6 AS=0 AD=0
 * device instance $4 r0 *1 0,0 HVNMOS

testdata/algo/same_net_names.l2n

@@ -28,7 +28,7 @@ X(SUBCKT
  )
  N(3
  )
- N(4 I(V42)
+ N(4 I('V42(%)')
  )
  N(5 I(Z)
  )