mirror of
https://github.com/lua/lua.git
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197 lines
6.9 KiB
C
197 lines
6.9 KiB
C
/*
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** $Id: lua.h,v 1.21 1998/06/06 21:05:52 roberto Exp roberto $
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** Lua - An Extensible Extension Language
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** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
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** e-mail: lua@tecgraf.puc-rio.br
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** www: http://www.tecgraf.puc-rio.br/lua/
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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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#define LUA_VERSION "Lua 3.1"
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#define LUA_COPYRIGHT "Copyright (C) 1994-1998 TeCGraf"
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#define LUA_AUTHORS "W. Celes, R. Ierusalimschy & L. H. de Figueiredo"
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#define LUA_NOOBJECT 0
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#define LUA_ANYTAG (-1)
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typedef void (*lua_CFunction) (void);
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typedef unsigned int lua_Object;
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typedef struct lua_State lua_State;
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extern lua_State *lua_state;
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void lua_open (void);
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void lua_close (void);
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lua_State *lua_setstate (lua_State *st);
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lua_Object lua_settagmethod (int tag, char *event); /* In: new method */
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lua_Object lua_gettagmethod (int tag, char *event);
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lua_Object lua_seterrormethod (void); /* In: new method */
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int lua_newtag (void);
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int lua_copytagmethods (int tagto, int tagfrom);
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void lua_settag (int tag); /* In: object */
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void lua_error (char *s);
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int lua_dofile (char *filename); /* Out: returns */
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int lua_dostring (char *string); /* Out: returns */
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int lua_dobuffer (char *buff, int size, char *name);
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/* Out: returns */
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int lua_callfunction (lua_Object f);
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/* In: parameters; Out: returns */
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void lua_beginblock (void);
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void lua_endblock (void);
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lua_Object lua_lua2C (int number);
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#define lua_getparam(_) lua_lua2C(_)
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#define lua_getresult(_) lua_lua2C(_)
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int lua_isnil (lua_Object object);
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int lua_istable (lua_Object object);
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int lua_isuserdata (lua_Object object);
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int lua_iscfunction (lua_Object object);
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int lua_isnumber (lua_Object object);
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int lua_isstring (lua_Object object);
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int lua_isfunction (lua_Object object);
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double lua_getnumber (lua_Object object);
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char *lua_getstring (lua_Object object);
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long lua_strlen (lua_Object object);
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lua_CFunction lua_getcfunction (lua_Object object);
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void *lua_getuserdata (lua_Object object);
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void lua_pushnil (void);
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void lua_pushnumber (double n);
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void lua_pushlstring (char *s, long len);
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void lua_pushstring (char *s);
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void lua_pushcclosure (lua_CFunction fn, int n);
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void lua_pushusertag (void *u, int tag);
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void lua_pushobject (lua_Object object);
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lua_Object lua_pop (void);
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lua_Object lua_getglobal (char *name);
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lua_Object lua_rawgetglobal (char *name);
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void lua_setglobal (char *name); /* In: value */
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void lua_rawsetglobal (char *name); /* In: value */
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void lua_settable (void); /* In: table, index, value */
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void lua_rawsettable (void); /* In: table, index, value */
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lua_Object lua_gettable (void); /* In: table, index */
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lua_Object lua_rawgettable (void); /* In: table, index */
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int lua_tag (lua_Object object);
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int lua_ref (int lock); /* In: value */
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lua_Object lua_getref (int ref);
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void lua_unref (int ref);
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lua_Object lua_createtable (void);
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long lua_collectgarbage (long limit);
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/* =============================================================== */
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/* some useful macros/derived functions */
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int (lua_call) (char *name);
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#define lua_call(name) lua_callfunction(lua_getglobal(name))
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void (lua_pushref) (int ref);
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#define lua_pushref(ref) lua_pushobject(lua_getref(ref))
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int (lua_refobject) (lua_Object o, int l);
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#define lua_refobject(o,l) (lua_pushobject(o), lua_ref(l))
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void (lua_register) (char *n, lua_CFunction f);
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#define lua_register(n,f) (lua_pushcfunction(f), lua_setglobal(n))
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void (lua_pushuserdata) (void *u);
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#define lua_pushuserdata(u) lua_pushusertag(u, 0)
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void (lua_pushcfunction) (lua_CFunction f);
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#define lua_pushcfunction(f) lua_pushcclosure(f, 0)
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int (lua_clonetag) (int t);
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#define lua_clonetag(t) lua_copytagmethods(lua_newtag(), (t))
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/* ==========================================================================
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** for compatibility with old versions. Avoid using these macros/functions
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** If your program does need any of these, define LUA_COMPAT2_5
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*/
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#ifdef LUA_COMPAT2_5
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lua_Object lua_setfallback (char *event, lua_CFunction fallback);
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#define lua_storeglobal lua_setglobal
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#define lua_type lua_tag
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#define lua_lockobject(o) lua_refobject(o,1)
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#define lua_lock() lua_ref(1)
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#define lua_getlocked lua_getref
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#define lua_pushlocked lua_pushref
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#define lua_unlock lua_unref
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#define lua_pushliteral(o) lua_pushstring(o)
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#define lua_getindexed(o,n) (lua_pushobject(o), lua_pushnumber(n), lua_gettable())
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#define lua_getfield(o,f) (lua_pushobject(o), lua_pushstring(f), lua_gettable())
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#define lua_copystring(o) (strdup(lua_getstring(o)))
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#define lua_getsubscript lua_gettable
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#define lua_storesubscript lua_settable
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#endif
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#endif
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/******************************************************************************
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* Copyright (c) 1994-1998 TeCGraf, PUC-Rio. All rights reserved.
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*
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* Permission is hereby granted, without written agreement and without license
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* or royalty fees, to use, copy, modify, and distribute this software and its
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* documentation for any purpose, including commercial applications, 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 appear in all
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* copies or substantial portions of this software.
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*
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* - The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software in a
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* product, an acknowledgment in the product documentation would be greatly
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* appreciated (but it is not required).
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*
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* - Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* The authors specifically disclaim any warranties, including, but not limited
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* to, the implied warranties of merchantability and fitness for a particular
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* purpose. The software provided hereunder is on an "as is" basis, and the
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* authors have no obligation to provide maintenance, support, updates,
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* enhancements, or modifications. In no event shall TeCGraf, PUC-Rio, or the
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* authors be held liable to any party for direct, indirect, special,
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* incidental, or consequential damages arising out of the use of this software
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* and its documentation.
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*
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* The Lua language and this implementation have been entirely designed and
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* written by Waldemar Celes Filho, Roberto Ierusalimschy and
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* Luiz Henrique de Figueiredo at TeCGraf, PUC-Rio.
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* This implementation contains no third-party code.
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******************************************************************************/
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