| /* |
| ** $Id: lauxlib.h,v 1.24 2000/09/11 20:29:27 roberto Exp roberto $ |
| ** 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" |
| |
| |
| struct luaL_reg { |
| const char *name; |
| lua_CFunction func; |
| }; |
| |
| |
| void luaL_openlib (lua_State *L, const struct luaL_reg *l, int n); |
| void luaL_argerror (lua_State *L, int numarg, const char *extramsg); |
| const char *luaL_check_lstr (lua_State *L, int numArg, size_t *len); |
| const char *luaL_opt_lstr (lua_State *L, int numArg, const char *def, |
| size_t *len); |
| double luaL_check_number (lua_State *L, int numArg); |
| double luaL_opt_number (lua_State *L, int numArg, double def); |
| |
| void luaL_checkstack (lua_State *L, int space, const char *msg); |
| void luaL_checktype (lua_State *L, int narg, const char *tname); |
| |
| void luaL_verror (lua_State *L, const char *fmt, ...); |
| 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 |
| ** ======================================================= |
| */ |
| |
| |
| #define LUAL_BUFFERSIZE BUFSIZ |
| |
| |
| 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)) |
| |
| void luaL_buffinit (lua_State *L, luaL_Buffer *B); |
| char *luaL_prepbuffer (luaL_Buffer *B); |
| void luaL_addlstring (luaL_Buffer *B, const char *s, size_t l); |
| void luaL_addstring (luaL_Buffer *B, const char *s); |
| void luaL_addvalue (luaL_Buffer *B); |
| void luaL_pushresult (luaL_Buffer *B); |
| |
| |
| /* }====================================================== */ |
| |
| |
| #endif |
| |
| |