+int pat_charfrom(Tcl_Interp *ip, Tcl_Obj *obj, int *val,
+ const char *opts, const char *what) {
+ *val= enum1_lookup_cached_func(ip,obj,opts,what);
+ if (*val==-1) return TCL_ERROR;
+ return TCL_OK;
+}
+
+int pat_enum(Tcl_Interp *ip, Tcl_Obj *obj, const void **val,
+ const void *opts, size_t sz, const char *what) {
+ *val= enum_lookup_cached_func(ip,obj,opts,sz,what);
+ if (!*val) return TCL_ERROR;
+ return TCL_OK;
+}
+
+int pat_obj(Tcl_Interp *ip, Tcl_Obj *obj, Tcl_Obj **val) {
+ *val= obj;
+ return TCL_OK;
+}
+
+int pat_int(Tcl_Interp *ip, Tcl_Obj *obj, int *val) {
+ return Tcl_GetIntFromObj(ip, obj, val);
+}
+
+int pat_hbv(Tcl_Interp *ip, Tcl_Obj *var, HBytes_Var *agg) {
+ int rc;
+ Tcl_Obj *val;
+
+ Tcl_IncrRefCount(var);
+ agg->var= var;
+
+ val= Tcl_ObjGetVar2(ip,var,0,TCL_LEAVE_ERR_MSG);
+ if (!val) return TCL_ERROR;
+ if (Tcl_IsShared(val)) val= Tcl_DuplicateObj(val);
+ Tcl_IncrRefCount(val);
+ agg->obj= val;