lauxlib.h
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上传日期:2019-04-29
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文件大小:3k
- /*
- ** $Id: lauxlib.h,v 1.30 2000/10/30 12:38:50 roberto Exp $
- ** Auxiliary functions for building Lua libraries
- ** See Copyright Notice in lua.h
- */
- #ifndef lauxlib_h
- #define lauxlib_h
- #include <stddef.h>
- #include <stdio.h>
- #include "lua.h"
- #ifndef LUALIB_API
- #define LUALIB_API extern
- #endif
- struct luaL_reg {
- const char *name;
- lua_CFunction func;
- };
- LUALIB_API void luaL_openlib (lua_State *L, const struct luaL_reg *l, int n);
- LUALIB_API void luaL_argerror (lua_State *L, int numarg, const char *extramsg);
- LUALIB_API const char *luaL_check_lstr (lua_State *L, int numArg, size_t *len);
- LUALIB_API const char *luaL_opt_lstr (lua_State *L, int numArg, const char *def, size_t *len);
- LUALIB_API double luaL_check_number (lua_State *L, int numArg);
- LUALIB_API double luaL_opt_number (lua_State *L, int numArg, double def);
- LUALIB_API void luaL_checkstack (lua_State *L, int space, const char *msg);
- LUALIB_API void luaL_checktype (lua_State *L, int narg, int t);
- LUALIB_API void luaL_checkany (lua_State *L, int narg);
- LUALIB_API void luaL_verror (lua_State *L, const char *fmt, ...);
- LUALIB_API int luaL_findstring (const char *name, const char *const list[]);
- /*
- ** ===============================================================
- ** some useful macros
- ** ===============================================================
- */
- #define luaL_arg_check(L, cond,numarg,extramsg) if (!(cond))
- luaL_argerror(L, numarg,extramsg)
- #define luaL_check_string(L,n) (luaL_check_lstr(L, (n), NULL))
- #define luaL_opt_string(L,n,d) (luaL_opt_lstr(L, (n), (d), NULL))
- #define luaL_check_int(L,n) ((int)luaL_check_number(L, n))
- #define luaL_check_long(L,n) ((long)luaL_check_number(L, n))
- #define luaL_opt_int(L,n,d) ((int)luaL_opt_number(L, n,d))
- #define luaL_opt_long(L,n,d) ((long)luaL_opt_number(L, n,d))
- #define luaL_openl(L,a) luaL_openlib(L, a, (sizeof(a)/sizeof(a[0])))
- /*
- ** {======================================================
- ** Generic Buffer manipulation
- ** =======================================================
- */
- #ifndef LUAL_BUFFERSIZE
- #define LUAL_BUFFERSIZE BUFSIZ
- #endif
- typedef struct luaL_Buffer {
- char *p; /* current position in buffer */
- int level;
- lua_State *L;
- char buffer[LUAL_BUFFERSIZE];
- } luaL_Buffer;
- #define luaL_putchar(B,c)
- ((void)((B)->p < &(B)->buffer[LUAL_BUFFERSIZE] || luaL_prepbuffer(B)),
- (*(B)->p++ = (char)(c)))
- #define luaL_addsize(B,n) ((B)->p += (n))
- LUALIB_API void luaL_buffinit (lua_State *L, luaL_Buffer *B);
- LUALIB_API char *luaL_prepbuffer (luaL_Buffer *B);
- LUALIB_API void luaL_addlstring (luaL_Buffer *B, const char *s, size_t l);
- LUALIB_API void luaL_addstring (luaL_Buffer *B, const char *s);
- LUALIB_API void luaL_addvalue (luaL_Buffer *B);
- LUALIB_API void luaL_pushresult (luaL_Buffer *B);
- /* }====================================================== */
- #endif