forked from redo/BlockLua
361 lines
12 KiB
C
361 lines
12 KiB
C
/*
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** $Id: lua.h,v 1.218.1.5 2008/08/06 13:30:12 roberto Exp $
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** Lua - An Extensible Extension Language
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** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
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** See Copyright Notice at the end of this file
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*/
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#ifndef lua_h
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#define lua_h
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#include <stdarg.h>
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#include <stddef.h>
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#include "luaconf.h"
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#define LUA_VERSION "Lua 5.1"
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#define LUA_RELEASE "Lua 5.1.4"
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#define LUA_VERSION_NUM 501
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#define LUA_COPYRIGHT "Copyright (C) 1994-2008 Lua.org, PUC-Rio"
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#define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo & W. Celes"
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/* mark for precompiled code (`<esc>Lua') */
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#define LUA_SIGNATURE "\033Lua"
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/* option for multiple returns in `lua_pcall' and `lua_call' */
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#define LUA_MULTRET (-1)
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/*
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** pseudo-indices
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*/
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#define LUA_REGISTRYINDEX (-10000)
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#define LUA_ENVIRONINDEX (-10001)
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#define LUA_GLOBALSINDEX (-10002)
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#define lua_upvalueindex(i) (LUA_GLOBALSINDEX - (i))
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/* thread status */
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#define LUA_OK 0
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#define LUA_YIELD 1
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#define LUA_ERRRUN 2
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#define LUA_ERRSYNTAX 3
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#define LUA_ERRMEM 4
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#define LUA_ERRERR 5
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typedef struct lua_State lua_State;
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typedef int (*lua_CFunction)(lua_State* L);
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/*
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** functions that read/write blocks when loading/dumping Lua chunks
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*/
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typedef const char* (*lua_Reader)(lua_State* L, void* ud, size_t* sz);
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typedef int (*lua_Writer)(lua_State* L, const void* p, size_t sz, void* ud);
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/*
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** prototype for memory-allocation functions
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*/
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typedef void* (*lua_Alloc)(void* ud, void* ptr, size_t osize, size_t nsize);
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/*
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** basic types
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*/
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#define LUA_TNONE (-1)
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#define LUA_TNIL 0
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#define LUA_TBOOLEAN 1
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#define LUA_TLIGHTUSERDATA 2
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#define LUA_TNUMBER 3
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#define LUA_TSTRING 4
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#define LUA_TTABLE 5
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#define LUA_TFUNCTION 6
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#define LUA_TUSERDATA 7
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#define LUA_TTHREAD 8
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/* minimum Lua stack available to a C function */
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#define LUA_MINSTACK 20
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/*
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** generic extra include file
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*/
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#if defined(LUA_USER_H)
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#include LUA_USER_H
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#endif
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/* type of numbers in Lua */
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typedef LUA_NUMBER lua_Number;
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/* type for integer functions */
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typedef LUA_INTEGER lua_Integer;
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/*
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** state manipulation
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*/
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LUA_API lua_State*(lua_newstate)(lua_Alloc f, void* ud);
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LUA_API void(lua_close)(lua_State* L);
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LUA_API lua_State*(lua_newthread)(lua_State * L);
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LUA_API lua_CFunction(lua_atpanic)(lua_State* L, lua_CFunction panicf);
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/*
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** basic stack manipulation
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*/
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LUA_API int(lua_gettop)(lua_State* L);
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LUA_API void(lua_settop)(lua_State* L, int idx);
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LUA_API void(lua_pushvalue)(lua_State* L, int idx);
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LUA_API void(lua_remove)(lua_State* L, int idx);
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LUA_API void(lua_insert)(lua_State* L, int idx);
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LUA_API void(lua_replace)(lua_State* L, int idx);
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LUA_API int(lua_checkstack)(lua_State* L, int sz);
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LUA_API void(lua_xmove)(lua_State* from, lua_State* to, int n);
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/*
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** access functions (stack -> C)
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*/
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LUA_API int(lua_isnumber)(lua_State* L, int idx);
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LUA_API int(lua_isstring)(lua_State* L, int idx);
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LUA_API int(lua_iscfunction)(lua_State* L, int idx);
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LUA_API int(lua_isuserdata)(lua_State* L, int idx);
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LUA_API int(lua_type)(lua_State* L, int idx);
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LUA_API const char*(lua_typename)(lua_State * L, int tp);
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LUA_API int(lua_equal)(lua_State* L, int idx1, int idx2);
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LUA_API int(lua_rawequal)(lua_State* L, int idx1, int idx2);
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LUA_API int(lua_lessthan)(lua_State* L, int idx1, int idx2);
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LUA_API lua_Number(lua_tonumber)(lua_State* L, int idx);
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LUA_API lua_Integer(lua_tointeger)(lua_State* L, int idx);
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LUA_API int(lua_toboolean)(lua_State* L, int idx);
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LUA_API const char*(lua_tolstring)(lua_State * L, int idx, size_t* len);
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LUA_API size_t(lua_objlen)(lua_State* L, int idx);
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LUA_API lua_CFunction(lua_tocfunction)(lua_State* L, int idx);
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LUA_API void*(lua_touserdata)(lua_State * L, int idx);
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LUA_API lua_State*(lua_tothread)(lua_State * L, int idx);
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LUA_API const void*(lua_topointer)(lua_State * L, int idx);
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/*
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** push functions (C -> stack)
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*/
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LUA_API void(lua_pushnil)(lua_State* L);
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LUA_API void(lua_pushnumber)(lua_State* L, lua_Number n);
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LUA_API void(lua_pushinteger)(lua_State* L, lua_Integer n);
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LUA_API void(lua_pushlstring)(lua_State* L, const char* s, size_t l);
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LUA_API void(lua_pushstring)(lua_State* L, const char* s);
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LUA_API const char*(lua_pushvfstring)(lua_State * L, const char* fmt, va_list argp);
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LUA_API const char*(lua_pushfstring)(lua_State * L, const char* fmt, ...);
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LUA_API void(lua_pushcclosure)(lua_State* L, lua_CFunction fn, int n);
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LUA_API void(lua_pushboolean)(lua_State* L, int b);
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LUA_API void(lua_pushlightuserdata)(lua_State* L, void* p);
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LUA_API int(lua_pushthread)(lua_State* L);
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/*
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** get functions (Lua -> stack)
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*/
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LUA_API void(lua_gettable)(lua_State* L, int idx);
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LUA_API void(lua_getfield)(lua_State* L, int idx, const char* k);
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LUA_API void(lua_rawget)(lua_State* L, int idx);
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LUA_API void(lua_rawgeti)(lua_State* L, int idx, int n);
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LUA_API void(lua_createtable)(lua_State* L, int narr, int nrec);
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LUA_API void*(lua_newuserdata)(lua_State * L, size_t sz);
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LUA_API int(lua_getmetatable)(lua_State* L, int objindex);
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LUA_API void(lua_getfenv)(lua_State* L, int idx);
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/*
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** set functions (stack -> Lua)
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*/
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LUA_API void(lua_settable)(lua_State* L, int idx);
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LUA_API void(lua_setfield)(lua_State* L, int idx, const char* k);
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LUA_API void(lua_rawset)(lua_State* L, int idx);
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LUA_API void(lua_rawseti)(lua_State* L, int idx, int n);
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LUA_API int(lua_setmetatable)(lua_State* L, int objindex);
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LUA_API int(lua_setfenv)(lua_State* L, int idx);
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/*
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** `load' and `call' functions (load and run Lua code)
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*/
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LUA_API void(lua_call)(lua_State* L, int nargs, int nresults);
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LUA_API int(lua_pcall)(lua_State* L, int nargs, int nresults, int errfunc);
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LUA_API int(lua_cpcall)(lua_State* L, lua_CFunction func, void* ud);
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LUA_API int(lua_load)(lua_State* L, lua_Reader reader, void* dt, const char* chunkname);
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LUA_API int(lua_dump)(lua_State* L, lua_Writer writer, void* data);
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/*
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** coroutine functions
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*/
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LUA_API int(lua_yield)(lua_State* L, int nresults);
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LUA_API int(lua_resume)(lua_State* L, int narg);
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LUA_API int(lua_status)(lua_State* L);
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/*
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** garbage-collection function and options
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*/
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#define LUA_GCSTOP 0
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#define LUA_GCRESTART 1
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#define LUA_GCCOLLECT 2
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#define LUA_GCCOUNT 3
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#define LUA_GCCOUNTB 4
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#define LUA_GCSTEP 5
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#define LUA_GCSETPAUSE 6
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#define LUA_GCSETSTEPMUL 7
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#define LUA_GCISRUNNING 9
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LUA_API int(lua_gc)(lua_State* L, int what, int data);
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/*
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** miscellaneous functions
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*/
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LUA_API int(lua_error)(lua_State* L);
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LUA_API int(lua_next)(lua_State* L, int idx);
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LUA_API void(lua_concat)(lua_State* L, int n);
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LUA_API lua_Alloc(lua_getallocf)(lua_State* L, void** ud);
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LUA_API void lua_setallocf(lua_State* L, lua_Alloc f, void* ud);
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/*
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** ===============================================================
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** some useful macros
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** ===============================================================
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*/
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#define lua_pop(L, n) lua_settop(L, -(n) - 1)
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#define lua_newtable(L) lua_createtable(L, 0, 0)
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#define lua_register(L, n, f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))
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#define lua_pushcfunction(L, f) lua_pushcclosure(L, (f), 0)
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#define lua_strlen(L, i) lua_objlen(L, (i))
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#define lua_isfunction(L, n) (lua_type(L, (n)) == LUA_TFUNCTION)
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#define lua_istable(L, n) (lua_type(L, (n)) == LUA_TTABLE)
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#define lua_islightuserdata(L, n) (lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
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#define lua_isnil(L, n) (lua_type(L, (n)) == LUA_TNIL)
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#define lua_isboolean(L, n) (lua_type(L, (n)) == LUA_TBOOLEAN)
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#define lua_isthread(L, n) (lua_type(L, (n)) == LUA_TTHREAD)
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#define lua_isnone(L, n) (lua_type(L, (n)) == LUA_TNONE)
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#define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0)
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#define lua_pushliteral(L, s) lua_pushlstring(L, "" s, (sizeof(s) / sizeof(char)) - 1)
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#define lua_setglobal(L, s) lua_setfield(L, LUA_GLOBALSINDEX, (s))
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#define lua_getglobal(L, s) lua_getfield(L, LUA_GLOBALSINDEX, (s))
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#define lua_tostring(L, i) lua_tolstring(L, (i), NULL)
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/*
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** compatibility macros and functions
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*/
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#define lua_open() luaL_newstate()
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#define lua_getregistry(L) lua_pushvalue(L, LUA_REGISTRYINDEX)
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#define lua_getgccount(L) lua_gc(L, LUA_GCCOUNT, 0)
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#define lua_Chunkreader lua_Reader
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#define lua_Chunkwriter lua_Writer
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/* hack */
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LUA_API void lua_setlevel(lua_State* from, lua_State* to);
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/*
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** {======================================================================
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** Debug API
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** =======================================================================
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*/
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/*
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** Event codes
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*/
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#define LUA_HOOKCALL 0
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#define LUA_HOOKRET 1
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#define LUA_HOOKLINE 2
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#define LUA_HOOKCOUNT 3
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#define LUA_HOOKTAILRET 4
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/*
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** Event masks
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*/
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#define LUA_MASKCALL (1 << LUA_HOOKCALL)
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#define LUA_MASKRET (1 << LUA_HOOKRET)
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#define LUA_MASKLINE (1 << LUA_HOOKLINE)
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#define LUA_MASKCOUNT (1 << LUA_HOOKCOUNT)
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typedef struct lua_Debug lua_Debug; /* activation record */
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/* Functions to be called by the debuger in specific events */
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typedef void (*lua_Hook)(lua_State* L, lua_Debug* ar);
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LUA_API int lua_getstack(lua_State* L, int level, lua_Debug* ar);
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LUA_API int lua_getinfo(lua_State* L, const char* what, lua_Debug* ar);
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LUA_API const char* lua_getlocal(lua_State* L, const lua_Debug* ar, int n);
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LUA_API const char* lua_setlocal(lua_State* L, const lua_Debug* ar, int n);
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LUA_API const char* lua_getupvalue(lua_State* L, int funcindex, int n);
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LUA_API const char* lua_setupvalue(lua_State* L, int funcindex, int n);
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LUA_API int lua_sethook(lua_State* L, lua_Hook func, int mask, int count);
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LUA_API lua_Hook lua_gethook(lua_State* L);
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LUA_API int lua_gethookmask(lua_State* L);
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LUA_API int lua_gethookcount(lua_State* L);
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/* From Lua 5.2. */
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LUA_API void* lua_upvalueid(lua_State* L, int idx, int n);
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LUA_API void lua_upvaluejoin(lua_State* L, int idx1, int n1, int idx2, int n2);
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LUA_API int lua_loadx(lua_State* L, lua_Reader reader, void* dt, const char* chunkname, const char* mode);
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LUA_API const lua_Number* lua_version(lua_State* L);
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LUA_API void lua_copy(lua_State* L, int fromidx, int toidx);
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LUA_API lua_Number lua_tonumberx(lua_State* L, int idx, int* isnum);
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LUA_API lua_Integer lua_tointegerx(lua_State* L, int idx, int* isnum);
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/* From Lua 5.3. */
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LUA_API int lua_isyieldable(lua_State* L);
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struct lua_Debug {
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int event;
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const char* name; /* (n) */
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const char* namewhat; /* (n) `global', `local', `field', `method' */
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const char* what; /* (S) `Lua', `C', `main', `tail' */
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const char* source; /* (S) */
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int currentline; /* (l) */
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int nups; /* (u) number of upvalues */
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int linedefined; /* (S) */
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int lastlinedefined; /* (S) */
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char short_src[LUA_IDSIZE]; /* (S) */
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/* private part */
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int i_ci; /* active function */
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};
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/* }====================================================================== */
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/******************************************************************************
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* Copyright (C) 1994-2008 Lua.org, PUC-Rio. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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******************************************************************************/
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#endif
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