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7c673cae FG |
1 | /* |
2 | ** $Id: lstring.h,v 1.61 2015/11/03 15:36:01 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 sizelstring(l) (sizeof(union UTString) + ((l) + 1) * sizeof(char)) | |
16 | ||
17 | #define sizeludata(l) (sizeof(union UUdata) + (l)) | |
18 | #define sizeudata(u) sizeludata((u)->len) | |
19 | ||
20 | #define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \ | |
21 | (sizeof(s)/sizeof(char))-1)) | |
22 | ||
23 | ||
24 | /* | |
25 | ** test whether a string is a reserved word | |
26 | */ | |
27 | #define isreserved(s) ((s)->tt == LUA_TSHRSTR && (s)->extra > 0) | |
28 | ||
29 | ||
30 | /* | |
31 | ** equality for short strings, which are always internalized | |
32 | */ | |
33 | #define eqshrstr(a,b) check_exp((a)->tt == LUA_TSHRSTR, (a) == (b)) | |
34 | ||
35 | ||
36 | LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed); | |
37 | LUAI_FUNC unsigned int luaS_hashlongstr (TString *ts); | |
38 | LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b); | |
39 | LUAI_FUNC void luaS_resize (lua_State *L, int newsize); | |
40 | LUAI_FUNC void luaS_clearcache (global_State *g); | |
41 | LUAI_FUNC void luaS_init (lua_State *L); | |
42 | LUAI_FUNC void luaS_remove (lua_State *L, TString *ts); | |
43 | LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s); | |
44 | LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l); | |
45 | LUAI_FUNC TString *luaS_new (lua_State *L, const char *str); | |
46 | LUAI_FUNC TString *luaS_createlngstrobj (lua_State *L, size_t l); | |
47 | ||
48 | ||
49 | #endif |