1 /* $NetBSD: lstring.h,v 1.10 2023/04/16 20:46:17 nikita Exp $ */ 2 3 /* 4 ** Id: lstring.h 5 ** String table (keep all strings handled by Lua) 6 ** See Copyright Notice in lua.h 7 */ 8 9 #ifndef lstring_h 10 #define lstring_h 11 12 #include "lgc.h" 13 #include "lobject.h" 14 #include "lstate.h" 15 16 17 /* 18 ** Memory-allocation error message must be preallocated (it cannot 19 ** be created after memory is exhausted) 20 */ 21 #define MEMERRMSG "not enough memory" 22 23 24 /* 25 ** Size of a TString: Size of the header plus space for the string 26 ** itself (including final '\0'). 27 */ 28 #define sizelstring(l) (offsetof(TString, contents) + ((l) + 1) * sizeof(char)) 29 30 #define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \ 31 (sizeof(s)/sizeof(char))-1)) 32 33 34 /* 35 ** test whether a string is a reserved word 36 */ 37 #define isreserved(s) ((s)->tt == LUA_VSHRSTR && (s)->extra > 0) 38 39 40 /* 41 ** equality for short strings, which are always internalized 42 */ 43 #define eqshrstr(a,b) check_exp((a)->tt == LUA_VSHRSTR, (a) == (b)) 44 45 46 LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed); 47 LUAI_FUNC unsigned int luaS_hashlongstr (TString *ts); 48 LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b); 49 LUAI_FUNC void luaS_resize (lua_State *L, int newsize); 50 LUAI_FUNC void luaS_clearcache (global_State *g); 51 LUAI_FUNC void luaS_init (lua_State *L); 52 LUAI_FUNC void luaS_remove (lua_State *L, TString *ts); 53 LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, int nuvalue); 54 LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l); 55 LUAI_FUNC TString *luaS_new (lua_State *L, const char *str); 56 LUAI_FUNC TString *luaS_createlngstrobj (lua_State *L, size_t l); 57 58 59 #endif 60