--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/auxiliar.h	Tue Aug 26 18:40:01 2008 -0700
@@ -0,0 +1,48 @@
+#ifndef AUXILIAR_H
+#define AUXILIAR_H
+/*=========================================================================*\
+* Auxiliar routines for class hierarchy manipulation
+* LuaSocket toolkit (but completely independent of other LuaSocket modules)
+*
+* A LuaSocket class is a name associated with Lua metatables. A LuaSocket 
+* group is a name associated with a class. A class can belong to any number 
+* of groups. This module provides the functionality to:
+*
+*   - create new classes 
+*   - add classes to groups 
+*   - set the class of objects
+*   - check if an object belongs to a given class or group
+*   - get the userdata associated to objects
+*   - print objects in a pretty way
+*
+* LuaSocket class names follow the convention <module>{<class>}. Modules
+* can define any number of classes and groups. The module tcp.c, for
+* example, defines the classes tcp{master}, tcp{client} and tcp{server} and
+* the groups tcp{client,server} and tcp{any}. Module functions can then
+* perform type-checking on their arguments by either class or group.
+*
+* LuaSocket metatables define the __index metamethod as being a table. This
+* table has one field for each method supported by the class, and a field
+* "class" with the class name.
+*
+* The mapping from class name to the corresponding metatable and the
+* reverse mapping are done using lauxlib. 
+*
+* RCS ID: $Id: auxiliar.h,v 1.9 2005/10/07 04:40:59 diego Exp $
+\*=========================================================================*/
+
+#include "lua.h"
+#include "lauxlib.h"
+
+int auxiliar_open(lua_State *L);
+void auxiliar_newclass(lua_State *L, const char *classname, luaL_reg *func);
+void auxiliar_add2group(lua_State *L, const char *classname, const char *group);
+void auxiliar_setclass(lua_State *L, const char *classname, int objidx);
+void *auxiliar_checkclass(lua_State *L, const char *classname, int objidx);
+void *auxiliar_checkgroup(lua_State *L, const char *groupname, int objidx);
+void *auxiliar_getclassudata(lua_State *L, const char *groupname, int objidx);
+void *auxiliar_getgroupudata(lua_State *L, const char *groupname, int objidx);
+int auxiliar_checkboolean(lua_State *L, int objidx);
+int auxiliar_tostring(lua_State *L);
+
+#endif /* AUXILIAR_H */