[det]cli_parse_debug_options(+OptionsIn, 
-Options)Parse certain commandline options for debugging and development 
purposes. Options processed are below. Note that the option 
argument is an atom such that these options may be activated as e.g., --debug='http(_)'.
- debug(Topic)
 - Call 
debug(Topic). See debug/1 
and debug/3. 
- spy(Predicate)
 - Place a spy-point on Predicate.
 
- gspy(Predicate)
 - As spy using the graphical debugger. See tspy/1.
 
- interactive(true)
 - Start the Prolog toplevel after main/1 
completes.