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386 lines
11 KiB
386 lines
11 KiB
//========= Copyright Valve Corporation, All rights reserved. ============// |
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/* |
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** $Id: lua.h,v 1.218 2006/06/02 15:34:00 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 5.1.1" |
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#define LUA_VERSION_NUM 501 |
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#define LUA_COPYRIGHT "Copyright (C) 1994-2006 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; 0 is OK */ |
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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, |
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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, |
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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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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) \ |
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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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/* |
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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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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) 1994-2006 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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