Hi all, is there a way to attach tcl debugger to the xschem, I managed to attach c debugger to the c part, but I realized that the c part is only a small part of the code and the majority of the code is on the tcl part

Tcl in xschem is used for user interface and for providing a command language. All the hard work is done in C. That said, starting xschem with negative debug level will activate some debug messages from tcl (xschem -d -3) , using positive debug level (xschem -d 3) will print messages from C code. However debug messages in tcl are not very much used. I don't know what is the approach for having a debugger operation on a scripting language.