| /* |
| ** $Id: lua.h,v 1.69 2000/09/14 14:09:31 roberto Exp roberto $ |
| ** Lua - An Extensible Extension Language |
| ** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil |
| ** e-mail: lua@tecgraf.puc-rio.br |
| ** www: http://www.tecgraf.puc-rio.br/lua/ |
| ** See Copyright Notice at the end of this file |
| */ |
| |
| |
| #ifndef lua_h |
| #define lua_h |
| |
| |
| /* definition of `size_t' */ |
| #include <stddef.h> |
| |
| |
| #define LUA_VERSION "Lua 4.0 (beta)" |
| #define LUA_COPYRIGHT "Copyright (C) 1994-2000 TeCGraf, PUC-Rio" |
| #define LUA_AUTHORS "W. Celes, R. Ierusalimschy & L. H. de Figueiredo" |
| |
| |
| #define LUA_ERRORMESSAGE "_ERRORMESSAGE" |
| |
| |
| #define LUA_NOREF (-2) |
| #define LUA_REFNIL (-1) |
| |
| #define LUA_ANYTAG (-1) |
| #define LUA_NOTAG (-2) |
| |
| #define LUA_MULTRET (-1) |
| |
| |
| #define LUA_MINSTACK 20 |
| |
| |
| /* error codes for lua_do* */ |
| #define LUA_ERRRUN 1 |
| #define LUA_ERRFILE 2 |
| #define LUA_ERRSYNTAX 3 |
| #define LUA_ERRMEM 4 |
| |
| |
| typedef struct lua_State lua_State; |
| |
| typedef int (*lua_CFunction) (lua_State *L); |
| |
| |
| /* |
| ** state manipulation |
| */ |
| lua_State *lua_open (int stacksize); |
| void lua_close (lua_State *L); |
| |
| |
| /* |
| ** basic stack manipulation |
| */ |
| int lua_gettop (lua_State *L); |
| void lua_settop (lua_State *L, int index); |
| void lua_pushvalue (lua_State *L, int index); |
| void lua_remove (lua_State *L, int index); |
| void lua_insert (lua_State *L, int index); |
| int lua_stackspace (lua_State *L); |
| |
| |
| /* |
| ** access functions (stack -> C) |
| */ |
| |
| const char *lua_type (lua_State *L, int index); |
| int lua_isnumber (lua_State *L, int index); |
| int lua_iscfunction (lua_State *L, int index); |
| int lua_tag (lua_State *L, int index); |
| |
| int lua_equal (lua_State *L, int index1, int index2); |
| int lua_lessthan (lua_State *L, int index1, int index2); |
| |
| double lua_tonumber (lua_State *L, int index); |
| const char *lua_tostring (lua_State *L, int index); |
| size_t lua_strlen (lua_State *L, int index); |
| lua_CFunction lua_tocfunction (lua_State *L, int index); |
| void *lua_touserdata (lua_State *L, int index); |
| const void *lua_topointer (lua_State *L, int index); |
| |
| |
| /* |
| ** push functions (C -> stack) |
| */ |
| void lua_pushnil (lua_State *L); |
| void lua_pushnumber (lua_State *L, double n); |
| void lua_pushlstring (lua_State *L, const char *s, size_t len); |
| void lua_pushstring (lua_State *L, const char *s); |
| void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n); |
| void lua_pushusertag (lua_State *L, void *u, int tag); |
| |
| |
| /* |
| ** get functions (Lua -> stack) |
| */ |
| void lua_getglobal (lua_State *L, const char *name); |
| void lua_gettable (lua_State *L, int index); |
| void lua_rawget (lua_State *L, int index); |
| void lua_rawgeti (lua_State *L, int index, int n); |
| void lua_getglobals (lua_State *L); |
| void lua_gettagmethod (lua_State *L, int tag, const char *event); |
| |
| int lua_getref (lua_State *L, int ref); |
| |
| void lua_newtable (lua_State *L); |
| |
| |
| /* |
| ** set functions (stack -> Lua) |
| */ |
| void lua_setglobal (lua_State *L, const char *name); |
| void lua_settable (lua_State *L, int index); |
| void lua_rawset (lua_State *L, int index); |
| void lua_rawseti (lua_State *L, int index, int n); |
| void lua_setglobals (lua_State *L); |
| void lua_settagmethod (lua_State *L, int tag, const char *event); |
| int lua_ref (lua_State *L, int lock); |
| |
| |
| /* |
| ** "do" functions (run Lua code) |
| */ |
| int lua_call (lua_State *L, int nargs, int nresults); |
| void lua_rawcall (lua_State *L, int nargs, int nresults); |
| int lua_dofile (lua_State *L, const char *filename); |
| int lua_dostring (lua_State *L, const char *str); |
| int lua_dobuffer (lua_State *L, const char *buff, size_t size, |
| const char *name); |
| |
| |
| /* |
| ** miscellaneous functions |
| */ |
| int lua_newtag (lua_State *L); |
| int lua_copytagmethods (lua_State *L, int tagto, int tagfrom); |
| void lua_settag (lua_State *L, int tag); |
| |
| void lua_error (lua_State *L, const char *s); |
| |
| void lua_unref (lua_State *L, int ref); |
| |
| long lua_collectgarbage (lua_State *L, long limit); |
| |
| int lua_next (lua_State *L, int index); |
| int lua_getn (lua_State *L, int index); |
| |
| void lua_concat (lua_State *L, int n); |
| |
| |
| /* |
| ** =============================================================== |
| ** some useful macros |
| ** =============================================================== |
| */ |
| |
| #define lua_pop(L,n) lua_settop(L, -(n)-1) |
| |
| #define lua_register(L,n,f) (lua_pushcfunction(L, f), lua_setglobal(L, n)) |
| #define lua_pushuserdata(L,u) lua_pushusertag(L, u, 0) |
| #define lua_pushcfunction(L,f) lua_pushcclosure(L, f, 0) |
| #define lua_clonetag(L,t) lua_copytagmethods(L, lua_newtag(L), (t)) |
| |
| #define lua_isfunction(L,n) (*lua_type(L,n) == 'f') |
| #define lua_isstring(L,n) (lua_tostring(L,n) != 0) |
| #define lua_istable(L,n) (*lua_type(L,n) == 't') |
| #define lua_isuserdata(L,n) (*lua_type(L,n) == 'u') |
| #define lua_isnil(L,n) (lua_type(L,n)[2] == 'l') |
| #define lua_isnull(L,n) (*lua_type(L,n) == 'N') |
| |
| #endif |
| |
| |
| |
| /****************************************************************************** |
| * Copyright (C) 1994-2000 TeCGraf, PUC-Rio. All rights reserved. |
| * |
| * Permission is hereby granted, without written agreement and without license |
| * or royalty fees, to use, copy, modify, and distribute this software and its |
| * documentation for any purpose, including commercial applications, subject to |
| * the following conditions: |
| * |
| * - The above copyright notice and this permission notice shall appear in all |
| * copies or substantial portions of this software. |
| * |
| * - The origin of this software must not be misrepresented; you must not |
| * claim that you wrote the original software. If you use this software in a |
| * product, an acknowledgment in the product documentation would be greatly |
| * appreciated (but it is not required). |
| * |
| * - Altered source versions must be plainly marked as such, and must not be |
| * misrepresented as being the original software. |
| * |
| * The authors specifically disclaim any warranties, including, but not limited |
| * to, the implied warranties of merchantability and fitness for a particular |
| * purpose. The software provided hereunder is on an "as is" basis, and the |
| * authors have no obligation to provide maintenance, support, updates, |
| * enhancements, or modifications. In no event shall TeCGraf, PUC-Rio, or the |
| * authors be held liable to any party for direct, indirect, special, |
| * incidental, or consequential damages arising out of the use of this software |
| * and its documentation. |
| * |
| * The Lua language and this implementation have been entirely designed and |
| * written by Waldemar Celes Filho, Roberto Ierusalimschy and |
| * Luiz Henrique de Figueiredo at TeCGraf, PUC-Rio. |
| * |
| * This implementation contains no third-party code. |
| ******************************************************************************/ |
