/*
** $Id: lstring.h,v 1.61 2015/11/03 15:36:01 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 sizelstring(l) (sizeof(union UTString) + ((l) + 1) * sizeof(char))

#define sizeludata(l) (sizeof(union UUdata) + (l))
#define sizeudata(u) sizeludata((u)->len)

#define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, (sizeof(s) / sizeof(char)) - 1))

/*
** test whether a string is a reserved word
*/
#define isreserved(s) ((s)->tt == LUA_TSHRSTR && (s)->extra > 0)

/*
** equality for short strings, which are always internalized
*/
#define eqshrstr(a, b) check_exp((a)->tt == LUA_TSHRSTR, (a) == (b))

LUAI_FUNC unsigned int luaS_hash(const char* str, size_t l, unsigned int seed);
LUAI_FUNC unsigned int luaS_hashlongstr(TString* ts);
LUAI_FUNC int luaS_eqlngstr(TString* a, TString* b);
LUAI_FUNC void luaS_resize(lua_State* L, int newsize);
LUAI_FUNC void luaS_clearcache(global_State* g);
LUAI_FUNC void luaS_init(lua_State* L);
LUAI_FUNC void luaS_remove(lua_State* L, TString* ts);
LUAI_FUNC Udata* luaS_newudata(lua_State* L, size_t s);
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);
LUAI_FUNC TString* luaS_createlngstrobj(lua_State* L, size_t l);

#endif
