| 1 | /* |
| 2 | ** $Id: lstring.h,v 1.49 2012/02/01 21:57:15 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 |