examples:
   process_string(":/mud/MudOS-doc/efuns/strings/process_string.html|arg1|arg2|arg3...|argn);
   this would produce a call_other of the form:
      file->func(arg1,arg2,arg3...,argn);
 
The file name is options (Otherwise it's assumed to be in this_object())
As well as all the arguments.