Tracing

The tracing methods (functions) associated with a system handle are:

(wsh-trace name)  
(trace (self <system-handle>) trace-string)
(end-trace (self <system-handle>))

The function (wsh-trace name) switch ON/OFF the trace facility for the system handle identified by name.^3.6 When trace in ON, calling (trace sh trace-string) send the value of trace-string to the window associated with the system handle sh. By default, this window is the standard output. An end-of-line character is added to the trace-string when sending it to the window.

(*** Later: How to define a Window. 
     See file $VULCAN/system-handles/initial-setup.scm ***)