1 /* 2 ** $Id: lstring.h,v 1.49.1.1 2013/04/12 18:48:47 roberto Exp $ 3 ** String table (keep all strings handled by Lua) 4 ** See Copyright Notice in lua.h 5 */ 6 7 #ifndef lstring_h 8 #define lstring_h 9 10 #include "lgc.h" 11 #include "lobject.h" 12 #include "lstate.h" 13 14 15 #define sizestring(s) (sizeof(union TString)+((s)->len+1)*sizeof(char)) 16 17 #define sizeudata(u) (sizeof(union Udata)+(u)->len) 18 19 #define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \ 20 (sizeof(s)/sizeof(char))-1)) 21 22 #define luaS_fix(s) l_setbit((s)->tsv.marked, FIXEDBIT) 23 24 25 /* 26 ** test whether a string is a reserved word 27 */ 28 #define isreserved(s) ((s)->tsv.tt == LUA_TSHRSTR && (s)->tsv.extra > 0) 29 30 31 /* 32 ** equality for short strings, which are always internalized 33 */ 34 #define eqshrstr(a,b) check_exp((a)->tsv.tt == LUA_TSHRSTR, (a) == (b)) 35 36 37 LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed); 38 LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b); 39 LUAI_FUNC int luaS_eqstr (TString *a, TString *b); 40 LUAI_FUNC void luaS_resize (lua_State *L, int newsize); 41 LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, Table *e); 42 LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l); 43 LUAI_FUNC TString *luaS_new (lua_State *L, const char *str); 44 45 46 #endif 47