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//========= Copyright Valve Corporation, All rights reserved. ============//
/*
** $Id: lua.h,v 1.218 2006/06/02 15:34:00 roberto Exp $** Lua - An Extensible Extension Language** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
** See Copyright Notice at the end of this file*/
#ifndef lua_h
#define lua_h
#include <stdarg.h>
#include <stddef.h>
#include "luaconf.h"
#define LUA_VERSION "Lua 5.1"
#define LUA_RELEASE "Lua 5.1.1"
#define LUA_VERSION_NUM 501
#define LUA_COPYRIGHT "Copyright (C) 1994-2006 Lua.org, PUC-Rio"
#define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo & W. Celes"
/* mark for precompiled code (`<esc>Lua') */#define LUA_SIGNATURE "\033Lua"
/* option for multiple returns in `lua_pcall' and `lua_call' */#define LUA_MULTRET (-1)
/*
** pseudo-indices*/#define LUA_REGISTRYINDEX (-10000)
#define LUA_ENVIRONINDEX (-10001)
#define LUA_GLOBALSINDEX (-10002)
#define lua_upvalueindex(i) (LUA_GLOBALSINDEX-(i))
/* thread status; 0 is OK */#define LUA_YIELD 1
#define LUA_ERRRUN 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_Reader) (lua_State *L, void *ud, size_t *sz);
typedef int (*lua_Writer) (lua_State *L, const void* p, size_t sz, void* ud);
/*
** prototype for memory-allocation functions*/typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
/*
** 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*/#if defined(LUA_USER_H)
#include LUA_USER_H
#endif
/* type of numbers in Lua */typedef LUA_NUMBER lua_Number;
/* type for integer functions */typedef LUA_INTEGER lua_Integer;
/*
** state manipulation*/LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud);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 lua_Integer (lua_tointeger) (lua_State *L, int idx);LUA_API int (lua_toboolean) (lua_State *L, int idx);LUA_API const char *(lua_tolstring) (lua_State *L, int idx, size_t *len);LUA_API size_t (lua_objlen) (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_pushinteger) (lua_State *L, lua_Integer 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);LUA_API int (lua_pushthread) (lua_State *L);
/*
** get functions (Lua -> stack)*/LUA_API void (lua_gettable) (lua_State *L, int idx);LUA_API void (lua_getfield) (lua_State *L, int idx, const char *k);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_createtable) (lua_State *L, int narr, int nrec);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_setfield) (lua_State *L, int idx, const char *k);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_Reader reader, void *dt, const char *chunkname);
LUA_API int (lua_dump) (lua_State *L, lua_Writer 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);LUA_API int (lua_status) (lua_State *L);
/*
** garbage-collection function and options*/
#define LUA_GCSTOP 0
#define LUA_GCRESTART 1
#define LUA_GCCOLLECT 2
#define LUA_GCCOUNT 3
#define LUA_GCCOUNTB 4
#define LUA_GCSTEP 5
#define LUA_GCSETPAUSE 6
#define LUA_GCSETSTEPMUL 7
LUA_API int (lua_gc) (lua_State *L, int what, int data);
/*
** miscellaneous functions*/
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);
LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
/*
** ===============================================================** some useful macros** ===============================================================*/
#define lua_pop(L,n) lua_settop(L, -(n)-1)
#define lua_newtable(L) lua_createtable(L, 0, 0)
#define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))
#define lua_pushcfunction(L,f) lua_pushcclosure(L, (f), 0)
#define lua_strlen(L,i) lua_objlen(L, (i))
#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_isthread(L,n) (lua_type(L, (n)) == LUA_TTHREAD)
#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)
#define lua_setglobal(L,s) lua_setfield(L, LUA_GLOBALSINDEX, (s))
#define lua_getglobal(L,s) lua_getfield(L, LUA_GLOBALSINDEX, (s))
#define lua_tostring(L,i) lua_tolstring(L, (i), NULL)
/*
** compatibility macros and functions*/
#define lua_open() luaL_newstate()
#define lua_getregistry(L) lua_pushvalue(L, LUA_REGISTRYINDEX)
#define lua_getgccount(L) lua_gc(L, LUA_GCCOUNT, 0)
#define lua_Chunkreader lua_Reader
#define lua_Chunkwriter lua_Writer
/*
** {======================================================================** 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 */
/* Functions to be called by the debuger in specific events */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);
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) */ int lastlinedefined; /* (S) */ char short_src[LUA_IDSIZE]; /* (S) */ /* private part */ int i_ci; /* active function */};
/* }====================================================================== */
/******************************************************************************
* Copyright (C) 1994-2006 Lua.org, 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
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