1*22ce4affSfengbojiang /* BEGIN CSTYLED */
2*22ce4affSfengbojiang /*
3*22ce4affSfengbojiang ** $Id: lstring.h,v 1.49.1.1 2013/04/12 18:48:47 roberto Exp $
4*22ce4affSfengbojiang ** String table (keep all strings handled by Lua)
5*22ce4affSfengbojiang ** See Copyright Notice in lua.h
6*22ce4affSfengbojiang */
7*22ce4affSfengbojiang 
8*22ce4affSfengbojiang #ifndef lstring_h
9*22ce4affSfengbojiang #define lstring_h
10*22ce4affSfengbojiang 
11*22ce4affSfengbojiang #include "lgc.h"
12*22ce4affSfengbojiang #include "lobject.h"
13*22ce4affSfengbojiang #include "lstate.h"
14*22ce4affSfengbojiang 
15*22ce4affSfengbojiang 
16*22ce4affSfengbojiang #define sizestring(s)	(sizeof(union TString)+((s)->len+1)*sizeof(char))
17*22ce4affSfengbojiang 
18*22ce4affSfengbojiang #define sizeudata(u)	(sizeof(union Udata)+(u)->len)
19*22ce4affSfengbojiang 
20*22ce4affSfengbojiang #define luaS_newliteral(L, s)	(luaS_newlstr(L, "" s, \
21*22ce4affSfengbojiang                                  (sizeof(s)/sizeof(char))-1))
22*22ce4affSfengbojiang 
23*22ce4affSfengbojiang #define luaS_fix(s)	l_setbit((s)->tsv.marked, FIXEDBIT)
24*22ce4affSfengbojiang 
25*22ce4affSfengbojiang 
26*22ce4affSfengbojiang /*
27*22ce4affSfengbojiang ** test whether a string is a reserved word
28*22ce4affSfengbojiang */
29*22ce4affSfengbojiang #define isreserved(s)	((s)->tsv.tt == LUA_TSHRSTR && (s)->tsv.extra > 0)
30*22ce4affSfengbojiang 
31*22ce4affSfengbojiang 
32*22ce4affSfengbojiang /*
33*22ce4affSfengbojiang ** equality for short strings, which are always internalized
34*22ce4affSfengbojiang */
35*22ce4affSfengbojiang #define eqshrstr(a,b)	check_exp((a)->tsv.tt == LUA_TSHRSTR, (a) == (b))
36*22ce4affSfengbojiang 
37*22ce4affSfengbojiang 
38*22ce4affSfengbojiang LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed);
39*22ce4affSfengbojiang LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b);
40*22ce4affSfengbojiang LUAI_FUNC int luaS_eqstr (TString *a, TString *b);
41*22ce4affSfengbojiang LUAI_FUNC void luaS_resize (lua_State *L, int newsize);
42*22ce4affSfengbojiang LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, Table *e);
43*22ce4affSfengbojiang LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l);
44*22ce4affSfengbojiang LUAI_FUNC TString *luaS_new (lua_State *L, const char *str);
45*22ce4affSfengbojiang 
46*22ce4affSfengbojiang 
47*22ce4affSfengbojiang #endif
48*22ce4affSfengbojiang /* END CSTYLED */
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