From b93c9af97c290125667ec0c402d913bdcb387f67 Mon Sep 17 00:00:00 2001
From: Stefan Frederik <stefan.schippers@gmail.com>
Date: Mon, 10 Oct 2022 17:45:56 +0200
Subject: [PATCH] flatten.awk: allow to specify additional custom devices node
 number with metacomments inserted in the netlist, like *.nodes[W] = 2, or *.
 nodes["W"]=2

---
 src/flatten.awk | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/flatten.awk b/src/flatten.awk
index 72bd326c..af34f48e 100755
--- a/src/flatten.awk
+++ b/src/flatten.awk
@@ -46,6 +46,16 @@ BEGIN{
 }
 {
  if( ($0 !~/^\.include/) && ($0 !~/^\.INCLUDE/) ) $0=toupper($0)
+ # allow to specify *.nodes[W]=2 or *.nodes["W"] = 2 in the netlist for additional
+ # custom devices nodes specification.
+ if($0 ~/^[ \t]*\*\.[ \t]*NODES\["?[^]["]"?\][ \t]*=[ \t]*.*/) {
+   n_nodes = $0
+   sub(/^.*=[ \t]*/, "", n_nodes)
+   n_initial = $0
+   sub(/"?\].*/, "", n_initial)
+   sub(/^.*\["?/, "", n_initial)
+   nodes[n_initial] = n_nodes
+ }
  if($0 ~ /^\**\.SUBCKT/ && first_subckt) {
    topcell=$2
    sub(/^\*\*/,"",$0)