external/mit/lua/dist/src/lstring.h

   1 /*      $NetBSD: lstring.h,v 1.4 2015/10/08 13:21:00 mbalmer Exp $      */
   2
   3 /*
   4 ** Id: lstring.h,v 1.59 2015/03/25 13:42:19 roberto Exp
   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 #define sizelstring(l)  (sizeof(union UTString) + ((l) + 1) * sizeof(char))
  18
  19 #define sizeludata(l)   (sizeof(union UUdata) + (l))
  20 #define sizeudata(u)    sizeludata((u)->len)
  21
  22 #define luaS_newliteral(L, s)   (luaS_newlstr(L, "" s, \
  23                                  (sizeof(s)/sizeof(char))-1))
  24
  25
  26 /*
  27 ** test whether a string is a reserved word
  28 */
  29 #define isreserved(s)   ((s)->tt == LUA_TSHRSTR && (s)->extra > 0)
  30
  31
  32 /*
  33 ** equality for short strings, which are always internalized
  34 */
  35 #define eqshrstr(a,b)   check_exp((a)->tt == LUA_TSHRSTR, (a) == (b))
  36
  37
  38 LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed);
  39 LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b);
  40 LUAI_FUNC void luaS_resize (lua_State *L, int newsize);
  41 LUAI_FUNC void luaS_clearcache (global_State *g);
  42 LUAI_FUNC void luaS_init (lua_State *L);
  43 LUAI_FUNC void luaS_remove (lua_State *L, TString *ts);
  44 LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s);
  45 LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l);
  46 LUAI_FUNC TString *luaS_new (lua_State *L, const char *str);
  47
  48
  49 #endif