int ast_pnodesearch(searchASTExpr *tree, replyFunc reply, void *sender, wallFunc wall, NodeDisplayFunc display, HeaderFunc header, void *headerarg, int limit);
+void regpnodedisp(const char *name, NodeDisplayFunc handler);
+void unregpnodedisp(const char *name, NodeDisplayFunc handler);
+
extern NodeDisplayFunc defaultpnodefn;
extern searchCmd *reg_nodesearch;