Index: generic/nsf.tcl
===================================================================
diff -u -rca94e89f9a531dd4c58e22f1b87c0b941689799a -r353fe0c41d46ad9d3475bd4b8ea16aea6aae0419
--- generic/nsf.tcl	(.../nsf.tcl)	(revision ca94e89f9a531dd4c58e22f1b87c0b941689799a)
+++ generic/nsf.tcl	(.../nsf.tcl)	(revision 353fe0c41d46ad9d3475bd4b8ea16aea6aae0419)
@@ -38,11 +38,13 @@
   }
 
   #
-  # ::nsf::mixin
+  # ::nsf::mixin 
   #
   # provide a similar interface as for ::nsf::method, ::nsf::alias, ...
   #
 
+  set ::nsf::parametersyntax(::nsf::mixin) "object ?-per-object? classes"
+
   proc ::nsf::mixin {object args} {
     if {[lindex $args 0] eq "-per-object"} {
       set rel "object-mixin"
@@ -70,7 +72,7 @@
       set {::proc ::nsf::__exithandler {} $value}
       get {::info body ::nsf::__exithandler}
       unset {proc ::nsf::__exithandler args {;}}
-      default {error "syntax: ::nsf::exithandler set|get|unset ?arg?"}
+      default {error "syntax: ::nsf::exithandler $::nsf::parametersyntax(::nsf::exithandler)"}
     }
   }
   # initialize exit handler
@@ -103,4 +105,8 @@
   # if HOME is not set, and ~ is resolved, Tcl chokes on that
   if {![info exists ::env(HOME)]} {set ::env(HOME) /root}
 
+  set ::nsf::parametersyntax(::nsf::xotclnext) "?--noArgs? ?arg ...?"
+  set ::nsf::parametersyntax(::nsf::__unset_unknown_args) ""
+  set ::nsf::parametersyntax(::nsf::exithandler) "?get?|?set cmds?|?unset?"
+
 }