154 lines
6.1 KiB
C
154 lines
6.1 KiB
C
/*
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** $Id: lauxlib.h,v 1.88.1.1 2007/12/27 13:02:25 roberto Exp $
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** Auxiliary functions for building Lua libraries
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** See Copyright Notice in lua.h
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*/
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#ifndef lauxlib_h
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#define lauxlib_h
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#include <stddef.h>
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#include <stdio.h>
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#include "lua.h"
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/* extra error code for `luaL_load' */
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#define LUA_ERRFILE (LUA_ERRERR + 1)
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typedef struct luaL_Reg {
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const char *name;
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lua_CFunction func;
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} luaL_Reg;
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LUALIB_API void(luaL_openlib)(lua_State *L, const char *libname,
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const luaL_Reg *l, int nup);
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LUALIB_API void(luaL_register)(lua_State *L, const char *libname,
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const luaL_Reg *l);
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LUALIB_API int(luaL_getmetafield)(lua_State *L, int obj, const char *e);
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LUALIB_API int(luaL_callmeta)(lua_State *L, int obj, const char *e);
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LUALIB_API int(luaL_typerror)(lua_State *L, int narg, const char *tname);
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LUALIB_API int(luaL_argerror)(lua_State *L, int numarg, const char *extramsg);
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LUALIB_API const char *(luaL_checklstring)(lua_State * L, int numArg,
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size_t *l);
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LUALIB_API const char *(luaL_optlstring)(lua_State * L, int numArg,
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const char *def, size_t *l);
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LUALIB_API lua_Number(luaL_checknumber)(lua_State *L, int numArg);
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LUALIB_API lua_Number(luaL_optnumber)(lua_State *L, int nArg, lua_Number def);
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LUALIB_API lua_Integer(luaL_checkinteger)(lua_State *L, int numArg);
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LUALIB_API lua_Integer(luaL_optinteger)(lua_State *L, int nArg,
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lua_Integer def);
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LUALIB_API void(luaL_checkstack)(lua_State *L, int sz, const char *msg);
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LUALIB_API void(luaL_checktype)(lua_State *L, int narg, int t);
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LUALIB_API void(luaL_checkany)(lua_State *L, int narg);
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LUALIB_API int(luaL_newmetatable)(lua_State *L, const char *tname);
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LUALIB_API void *(luaL_checkudata)(lua_State * L, int ud, const char *tname);
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LUALIB_API void(luaL_where)(lua_State *L, int lvl);
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LUALIB_API int(luaL_error)(lua_State *L, const char *fmt, ...);
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LUALIB_API int(luaL_checkoption)(lua_State *L, int narg, const char *def,
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const char *const lst[]);
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/* pre-defined references */
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#define LUA_NOREF (-2)
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#define LUA_REFNIL (-1)
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LUALIB_API int(luaL_ref)(lua_State *L, int t);
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LUALIB_API void(luaL_unref)(lua_State *L, int t, int ref);
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LUALIB_API int(luaL_loadfile)(lua_State *L, const char *filename);
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LUALIB_API int(luaL_loadbuffer)(lua_State *L, const char *buff, size_t sz,
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const char *name);
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LUALIB_API int(luaL_loadstring)(lua_State *L, const char *s);
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LUALIB_API lua_State *(luaL_newstate)(void);
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LUALIB_API const char *(luaL_gsub)(lua_State * L, const char *s, const char *p,
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const char *r);
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LUALIB_API const char *(luaL_findtable)(lua_State * L, int idx,
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const char *fname, int szhint);
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/* From Lua 5.2. */
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LUALIB_API int luaL_fileresult(lua_State *L, int stat, const char *fname);
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LUALIB_API int luaL_execresult(lua_State *L, int stat);
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LUALIB_API int(luaL_loadfilex)(lua_State *L, const char *filename,
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const char *mode);
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LUALIB_API int(luaL_loadbufferx)(lua_State *L, const char *buff, size_t sz,
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const char *name, const char *mode);
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LUALIB_API void luaL_traceback(lua_State *L, lua_State *L1, const char *msg,
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int level);
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LUALIB_API void(luaL_setfuncs)(lua_State *L, const luaL_Reg *l, int nup);
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LUALIB_API void(luaL_pushmodule)(lua_State *L, const char *modname,
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int sizehint);
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LUALIB_API void *(luaL_testudata)(lua_State * L, int ud, const char *tname);
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LUALIB_API void(luaL_setmetatable)(lua_State *L, const char *tname);
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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 luaL_argcheck(L, cond, numarg, extramsg) \
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((void)((cond) || luaL_argerror(L, (numarg), (extramsg))))
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#define luaL_checkstring(L, n) (luaL_checklstring(L, (n), NULL))
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#define luaL_optstring(L, n, d) (luaL_optlstring(L, (n), (d), NULL))
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#define luaL_checkint(L, n) ((int)luaL_checkinteger(L, (n)))
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#define luaL_optint(L, n, d) ((int)luaL_optinteger(L, (n), (d)))
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#define luaL_checklong(L, n) ((long)luaL_checkinteger(L, (n)))
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#define luaL_optlong(L, n, d) ((long)luaL_optinteger(L, (n), (d)))
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#define luaL_typename(L, i) lua_typename(L, lua_type(L, (i)))
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#define luaL_dofile(L, fn) \
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(luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0))
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#define luaL_dostring(L, s) \
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(luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0))
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#define luaL_getmetatable(L, n) (lua_getfield(L, LUA_REGISTRYINDEX, (n)))
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#define luaL_opt(L, f, n, d) (lua_isnoneornil(L, (n)) ? (d) : f(L, (n)))
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/* From Lua 5.2. */
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#define luaL_newlibtable(L, l) \
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lua_createtable(L, 0, sizeof(l) / sizeof((l)[0]) - 1)
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#define luaL_newlib(L, l) (luaL_newlibtable(L, l), luaL_setfuncs(L, l, 0))
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/*
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** {======================================================
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** Generic Buffer manipulation
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** =======================================================
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*/
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typedef struct luaL_Buffer {
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char *p; /* current position in buffer */
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int lvl; /* number of strings in the stack (level) */
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lua_State *L;
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char buffer[LUAL_BUFFERSIZE];
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} luaL_Buffer;
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#define luaL_addchar(B, c) \
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((void)((B)->p < ((B)->buffer + LUAL_BUFFERSIZE) || luaL_prepbuffer(B)), \
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(*(B)->p++ = (char)(c)))
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/* compatibility only */
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#define luaL_putchar(B, c) luaL_addchar(B, c)
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#define luaL_addsize(B, n) ((B)->p += (n))
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LUALIB_API void(luaL_buffinit)(lua_State *L, luaL_Buffer *B);
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LUALIB_API char *(luaL_prepbuffer)(luaL_Buffer * B);
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LUALIB_API void(luaL_addlstring)(luaL_Buffer *B, const char *s, size_t l);
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LUALIB_API void(luaL_addstring)(luaL_Buffer *B, const char *s);
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LUALIB_API void(luaL_addvalue)(luaL_Buffer *B);
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LUALIB_API void(luaL_pushresult)(luaL_Buffer *B);
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/* }====================================================== */
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#endif
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