1/* $NetBSD: lstring.h,v 1.10 2023/04/16 20:46:17 nikita Exp $ */ 2 3/* 4** Id: lstring.h 5** String table (keep all strings handled by Lua) 6** See Copyright Notice in lua.h 7*/ 8 9#ifndef lstring_h 10#define lstring_h 11 12#include "lgc.h" 13#include "lobject.h" 14#include "lstate.h" 15 16 17/* 18** Memory-allocation error message must be preallocated (it cannot 19** be created after memory is exhausted) 20*/ 21#define MEMERRMSG "not enough memory" 22 23 24/* 25** Size of a TString: Size of the header plus space for the string 26** itself (including final '\0'). 27*/ 28#define sizelstring(l) (offsetof(TString, contents) + ((l) + 1) * sizeof(char)) 29 30#define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \ 31 (sizeof(s)/sizeof(char))-1)) 32 33 34/* 35** test whether a string is a reserved word 36*/ 37#define isreserved(s) ((s)->tt == LUA_VSHRSTR && (s)->extra > 0) 38 39 40/* 41** equality for short strings, which are always internalized 42*/ 43#define eqshrstr(a,b) check_exp((a)->tt == LUA_VSHRSTR, (a) == (b)) 44 45 46LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed); 47LUAI_FUNC unsigned int luaS_hashlongstr (TString *ts); 48LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b); 49LUAI_FUNC void luaS_resize (lua_State *L, int newsize); 50LUAI_FUNC void luaS_clearcache (global_State *g); 51LUAI_FUNC void luaS_init (lua_State *L); 52LUAI_FUNC void luaS_remove (lua_State *L, TString *ts); 53LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, int nuvalue); 54LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l); 55LUAI_FUNC TString *luaS_new (lua_State *L, const char *str); 56LUAI_FUNC TString *luaS_createlngstrobj (lua_State *L, size_t l); 57 58 59#endif 60