--- reg
+++ reg
@@ -141 +141 @@
-for my $str( q{[{"k":"v"},{"v":"k"}] }, q{{"ro":["sham","bo"],"t":{"i":{"c":{"t":{"o":"c"}}}}}}){
+for my $str( q{[1,[2,[3],[]]]}, q{["double extra comma",,]} , ){