/*

** $Id: lstring.h,v 1.49.1.1 2013/04/12 18:48:47 roberto Exp $

** String table (keep all strings handled by Lua)

** See Copyright Notice in lua.h

*/

#ifndef lstring_h

#define lstring_h

#include "lgc.h"

#include "lobject.h"

#include "lstate.h"

#define sizestring(s) (sizeof(union TString)+((s)->len+1)*sizeof(char))

#define sizeudata(u) (sizeof(union Udata)+(u)->len)

#define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \

(sizeof(s)/sizeof(char))-1))

#define luaS_fix(s) l_setbit((s)->tsv.marked, FIXEDBIT)

/*

** test whether a string is a reserved word

*/

#define isreserved(s) ((s)->tsv.tt == LUA_TSHRSTR && (s)->tsv.extra > 0)

/*

** equality for short strings, which are always internalized

*/

#define eqshrstr(a,b) check_exp((a)->tsv.tt == LUA_TSHRSTR, (a) == (b))

LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed);

LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b);

LUAI_FUNC int luaS_eqstr (TString *a, TString *b);

LUAI_FUNC void luaS_resize (lua_State *L, int newsize);

LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, Table *e);

LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l);

LUAI_FUNC TString *luaS_new (lua_State *L, const char *str);

#endif