391 lines
11 KiB
C
391 lines
11 KiB
C
/*
|
|
** $Id: lua.h,v 1.175c 2003/03/18 12:31:39 roberto Exp $
|
|
** Lua - An Extensible Extension Language
|
|
** Tecgraf: Computer Graphics Technology Group, PUC-Rio, Brazil
|
|
** http://www.lua.org mailto:info@lua.org
|
|
** See Copyright Notice at the end of this file
|
|
*/
|
|
|
|
|
|
#ifndef lua_h
|
|
#define lua_h
|
|
|
|
#include <stdarg.h>
|
|
#include <stddef.h>
|
|
|
|
|
|
#define LUA_VERSION "Lua 5.0.3"
|
|
#define LUA_COPYRIGHT "Copyright (C) 1994-2006 Tecgraf, PUC-Rio"
|
|
#define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo & W. Celes"
|
|
|
|
|
|
|
|
/* option for multiple returns in `lua_pcall' and `lua_call' */
|
|
#define LUA_MULTRET (-1)
|
|
|
|
|
|
/*
|
|
** pseudo-indices
|
|
*/
|
|
#define LUA_REGISTRYINDEX (-10000)
|
|
#define LUA_GLOBALSINDEX (-10001)
|
|
#define lua_upvalueindex(i) (LUA_GLOBALSINDEX-(i))
|
|
|
|
|
|
/* error codes for `lua_load' and `lua_pcall' */
|
|
#define LUA_ERRRUN 1
|
|
#define LUA_ERRFILE 2
|
|
#define LUA_ERRSYNTAX 3
|
|
#define LUA_ERRMEM 4
|
|
#define LUA_ERRERR 5
|
|
|
|
|
|
typedef struct lua_State lua_State;
|
|
|
|
typedef int (*lua_CFunction) (lua_State *L);
|
|
|
|
|
|
/*
|
|
** functions that read/write blocks when loading/dumping Lua chunks
|
|
*/
|
|
typedef const char * (*lua_Chunkreader) (lua_State *L, void *ud, size_t *sz);
|
|
|
|
typedef int (*lua_Chunkwriter) (lua_State *L, const void* p,
|
|
size_t sz, void* ud);
|
|
|
|
|
|
/*
|
|
** basic types
|
|
*/
|
|
#define LUA_TNONE (-1)
|
|
|
|
#define LUA_TNIL 0
|
|
#define LUA_TBOOLEAN 1
|
|
#define LUA_TLIGHTUSERDATA 2
|
|
#define LUA_TNUMBER 3
|
|
#define LUA_TSTRING 4
|
|
#define LUA_TTABLE 5
|
|
#define LUA_TFUNCTION 6
|
|
#define LUA_TUSERDATA 7
|
|
#define LUA_TTHREAD 8
|
|
|
|
|
|
/* minimum Lua stack available to a C function */
|
|
#define LUA_MINSTACK 20
|
|
|
|
|
|
/*
|
|
** generic extra include file
|
|
*/
|
|
#ifdef LUA_USER_H
|
|
#include LUA_USER_H
|
|
#endif
|
|
|
|
|
|
/* type of numbers in Lua */
|
|
#ifndef LUA_NUMBER
|
|
typedef double lua_Number;
|
|
#else
|
|
typedef LUA_NUMBER lua_Number;
|
|
#endif
|
|
|
|
|
|
/* mark for all API functions */
|
|
#ifndef LUA_API
|
|
#define LUA_API extern
|
|
#endif
|
|
|
|
|
|
/*
|
|
** state manipulation
|
|
*/
|
|
LUA_API lua_State *lua_open (void);
|
|
LUA_API void lua_close (lua_State *L);
|
|
LUA_API lua_State *lua_newthread (lua_State *L);
|
|
|
|
LUA_API lua_CFunction lua_atpanic (lua_State *L, lua_CFunction panicf);
|
|
|
|
|
|
/*
|
|
** basic stack manipulation
|
|
*/
|
|
LUA_API int lua_gettop (lua_State *L);
|
|
LUA_API void lua_settop (lua_State *L, int idx);
|
|
LUA_API void lua_pushvalue (lua_State *L, int idx);
|
|
LUA_API void lua_remove (lua_State *L, int idx);
|
|
LUA_API void lua_insert (lua_State *L, int idx);
|
|
LUA_API void lua_replace (lua_State *L, int idx);
|
|
LUA_API int lua_checkstack (lua_State *L, int sz);
|
|
|
|
LUA_API void lua_xmove (lua_State *from, lua_State *to, int n);
|
|
|
|
|
|
/*
|
|
** access functions (stack -> C)
|
|
*/
|
|
|
|
LUA_API int lua_isnumber (lua_State *L, int idx);
|
|
LUA_API int lua_isstring (lua_State *L, int idx);
|
|
LUA_API int lua_iscfunction (lua_State *L, int idx);
|
|
LUA_API int lua_isuserdata (lua_State *L, int idx);
|
|
LUA_API int lua_type (lua_State *L, int idx);
|
|
LUA_API const char *lua_typename (lua_State *L, int tp);
|
|
|
|
LUA_API int lua_equal (lua_State *L, int idx1, int idx2);
|
|
LUA_API int lua_rawequal (lua_State *L, int idx1, int idx2);
|
|
LUA_API int lua_lessthan (lua_State *L, int idx1, int idx2);
|
|
|
|
LUA_API lua_Number lua_tonumber (lua_State *L, int idx);
|
|
LUA_API int lua_toboolean (lua_State *L, int idx);
|
|
LUA_API const char *lua_tostring (lua_State *L, int idx);
|
|
LUA_API size_t lua_strlen (lua_State *L, int idx);
|
|
LUA_API lua_CFunction lua_tocfunction (lua_State *L, int idx);
|
|
LUA_API void *lua_touserdata (lua_State *L, int idx);
|
|
LUA_API lua_State *lua_tothread (lua_State *L, int idx);
|
|
LUA_API const void *lua_topointer (lua_State *L, int idx);
|
|
|
|
|
|
/*
|
|
** push functions (C -> stack)
|
|
*/
|
|
LUA_API void lua_pushnil (lua_State *L);
|
|
LUA_API void lua_pushnumber (lua_State *L, lua_Number n);
|
|
LUA_API void lua_pushlstring (lua_State *L, const char *s, size_t l);
|
|
LUA_API void lua_pushstring (lua_State *L, const char *s);
|
|
LUA_API const char *lua_pushvfstring (lua_State *L, const char *fmt,
|
|
va_list argp);
|
|
LUA_API const char *lua_pushfstring (lua_State *L, const char *fmt, ...);
|
|
LUA_API void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n);
|
|
LUA_API void lua_pushboolean (lua_State *L, int b);
|
|
LUA_API void lua_pushlightuserdata (lua_State *L, void *p);
|
|
|
|
|
|
/*
|
|
** get functions (Lua -> stack)
|
|
*/
|
|
LUA_API void lua_gettable (lua_State *L, int idx);
|
|
LUA_API void lua_rawget (lua_State *L, int idx);
|
|
LUA_API void lua_rawgeti (lua_State *L, int idx, int n);
|
|
LUA_API void lua_newtable (lua_State *L);
|
|
LUA_API void *lua_newuserdata (lua_State *L, size_t sz);
|
|
LUA_API int lua_getmetatable (lua_State *L, int objindex);
|
|
LUA_API void lua_getfenv (lua_State *L, int idx);
|
|
|
|
|
|
/*
|
|
** set functions (stack -> Lua)
|
|
*/
|
|
LUA_API void lua_settable (lua_State *L, int idx);
|
|
LUA_API void lua_rawset (lua_State *L, int idx);
|
|
LUA_API void lua_rawseti (lua_State *L, int idx, int n);
|
|
LUA_API int lua_setmetatable (lua_State *L, int objindex);
|
|
LUA_API int lua_setfenv (lua_State *L, int idx);
|
|
|
|
|
|
/*
|
|
** `load' and `call' functions (load and run Lua code)
|
|
*/
|
|
LUA_API void lua_call (lua_State *L, int nargs, int nresults);
|
|
LUA_API int lua_pcall (lua_State *L, int nargs, int nresults, int errfunc);
|
|
LUA_API int lua_cpcall (lua_State *L, lua_CFunction func, void *ud);
|
|
LUA_API int lua_load (lua_State *L, lua_Chunkreader reader, void *dt,
|
|
const char *chunkname);
|
|
|
|
LUA_API int lua_dump (lua_State *L, lua_Chunkwriter writer, void *data);
|
|
|
|
|
|
/*
|
|
** coroutine functions
|
|
*/
|
|
LUA_API int lua_yield (lua_State *L, int nresults);
|
|
LUA_API int lua_resume (lua_State *L, int narg);
|
|
|
|
/*
|
|
** garbage-collection functions
|
|
*/
|
|
LUA_API int lua_getgcthreshold (lua_State *L);
|
|
LUA_API int lua_getgccount (lua_State *L);
|
|
LUA_API void lua_setgcthreshold (lua_State *L, int newthreshold);
|
|
|
|
/*
|
|
** miscellaneous functions
|
|
*/
|
|
|
|
LUA_API const char *lua_version (void);
|
|
|
|
LUA_API int lua_error (lua_State *L);
|
|
|
|
LUA_API int lua_next (lua_State *L, int idx);
|
|
|
|
LUA_API void lua_concat (lua_State *L, int n);
|
|
|
|
|
|
|
|
/*
|
|
** ===============================================================
|
|
** some useful macros
|
|
** ===============================================================
|
|
*/
|
|
|
|
#define lua_boxpointer(L,u) \
|
|
(*(void **)(lua_newuserdata(L, sizeof(void *))) = (u))
|
|
|
|
#define lua_unboxpointer(L,i) (*(void **)(lua_touserdata(L, i)))
|
|
|
|
#define lua_pop(L,n) lua_settop(L, -(n)-1)
|
|
|
|
#define lua_register(L,n,f) \
|
|
(lua_pushstring(L, n), \
|
|
lua_pushcfunction(L, f), \
|
|
lua_settable(L, LUA_GLOBALSINDEX))
|
|
|
|
#define lua_pushcfunction(L,f) lua_pushcclosure(L, f, 0)
|
|
|
|
#define lua_isfunction(L,n) (lua_type(L,n) == LUA_TFUNCTION)
|
|
#define lua_istable(L,n) (lua_type(L,n) == LUA_TTABLE)
|
|
#define lua_islightuserdata(L,n) (lua_type(L,n) == LUA_TLIGHTUSERDATA)
|
|
#define lua_isnil(L,n) (lua_type(L,n) == LUA_TNIL)
|
|
#define lua_isboolean(L,n) (lua_type(L,n) == LUA_TBOOLEAN)
|
|
#define lua_isnone(L,n) (lua_type(L,n) == LUA_TNONE)
|
|
#define lua_isnoneornil(L, n) (lua_type(L,n) <= 0)
|
|
|
|
#define lua_pushliteral(L, s) \
|
|
lua_pushlstring(L, "" s, (sizeof(s)/sizeof(char))-1)
|
|
|
|
|
|
|
|
/*
|
|
** compatibility macros and functions
|
|
*/
|
|
|
|
|
|
LUA_API int lua_pushupvalues (lua_State *L);
|
|
|
|
#define lua_getregistry(L) lua_pushvalue(L, LUA_REGISTRYINDEX)
|
|
#define lua_setglobal(L,s) \
|
|
(lua_pushstring(L, s), lua_insert(L, -2), lua_settable(L, LUA_GLOBALSINDEX))
|
|
|
|
#define lua_getglobal(L,s) \
|
|
(lua_pushstring(L, s), lua_gettable(L, LUA_GLOBALSINDEX))
|
|
|
|
|
|
/* compatibility with ref system */
|
|
|
|
/* pre-defined references */
|
|
#define LUA_NOREF (-2)
|
|
#define LUA_REFNIL (-1)
|
|
|
|
#define lua_ref(L,lock) ((lock) ? luaL_ref(L, LUA_REGISTRYINDEX) : \
|
|
(lua_pushstring(L, "unlocked references are obsolete"), lua_error(L), 0))
|
|
|
|
#define lua_unref(L,ref) luaL_unref(L, LUA_REGISTRYINDEX, (ref))
|
|
|
|
#define lua_getref(L,ref) lua_rawgeti(L, LUA_REGISTRYINDEX, ref)
|
|
|
|
|
|
|
|
/*
|
|
** {======================================================================
|
|
** useful definitions for Lua kernel and libraries
|
|
** =======================================================================
|
|
*/
|
|
|
|
/* formats for Lua numbers */
|
|
#ifndef LUA_NUMBER_SCAN
|
|
#define LUA_NUMBER_SCAN "%lf"
|
|
#endif
|
|
|
|
#ifndef LUA_NUMBER_FMT
|
|
#define LUA_NUMBER_FMT "%.14g"
|
|
#endif
|
|
|
|
/* }====================================================================== */
|
|
|
|
|
|
/*
|
|
** {======================================================================
|
|
** Debug API
|
|
** =======================================================================
|
|
*/
|
|
|
|
|
|
/*
|
|
** Event codes
|
|
*/
|
|
#define LUA_HOOKCALL 0
|
|
#define LUA_HOOKRET 1
|
|
#define LUA_HOOKLINE 2
|
|
#define LUA_HOOKCOUNT 3
|
|
#define LUA_HOOKTAILRET 4
|
|
|
|
|
|
/*
|
|
** Event masks
|
|
*/
|
|
#define LUA_MASKCALL (1 << LUA_HOOKCALL)
|
|
#define LUA_MASKRET (1 << LUA_HOOKRET)
|
|
#define LUA_MASKLINE (1 << LUA_HOOKLINE)
|
|
#define LUA_MASKCOUNT (1 << LUA_HOOKCOUNT)
|
|
|
|
typedef struct lua_Debug lua_Debug; /* activation record */
|
|
|
|
typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
|
|
|
|
|
|
LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar);
|
|
LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);
|
|
LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n);
|
|
LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n);
|
|
LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n);
|
|
LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n);
|
|
|
|
LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count);
|
|
LUA_API lua_Hook lua_gethook (lua_State *L);
|
|
LUA_API int lua_gethookmask (lua_State *L);
|
|
LUA_API int lua_gethookcount (lua_State *L);
|
|
|
|
|
|
#define LUA_IDSIZE 60
|
|
|
|
struct lua_Debug {
|
|
int event;
|
|
const char *name; /* (n) */
|
|
const char *namewhat; /* (n) `global', `local', `field', `method' */
|
|
const char *what; /* (S) `Lua', `C', `main', `tail' */
|
|
const char *source; /* (S) */
|
|
int currentline; /* (l) */
|
|
int nups; /* (u) number of upvalues */
|
|
int linedefined; /* (S) */
|
|
char short_src[LUA_IDSIZE]; /* (S) */
|
|
/* private part */
|
|
int i_ci; /* active function */
|
|
};
|
|
|
|
/* }====================================================================== */
|
|
|
|
|
|
/******************************************************************************
|
|
* Copyright (C) 1994-2006 Tecgraf, PUC-Rio. All rights reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
******************************************************************************/
|
|
|
|
|
|
#endif
|