module/lua/lstring.h

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