+/* from scriptinv.c */
+
+typedef struct { /* semi-opaque - read only, and then only where commented */
+ Tcl_Interp *ip; /* valid, non-0 and useable if set */
+ Tcl_Obj *obj; /* non-0 iff set (but only test for 0/non-0) */
+ int llength;
+} ScriptToInvoke;
+
+void scriptinv_init(ScriptToInvoke *si);
+int scriptinv_set(ScriptToInvoke *si, Tcl_Interp *ip, Tcl_Obj *newscript);
+void scriptinv_cancel(ScriptToInvoke *si); /* then don't invoke */
+ /* no separate free function - just cancel */
+
+void scriptinv_invoke(ScriptToInvoke *si, int argc, Tcl_Obj **argv);
+
+/* from idtable.c */
+
+typedef struct {
+ const char *const prefix;
+ int n;
+ void **a;
+} IdDataTable;
+
+extern Tcl_ObjType tabledataid_nearlytype;
+int tabledataid_parse(Tcl_Interp *ip, Tcl_Obj *o, IdDataTable *tab);
+