lstring.h 1.4 KB

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  1. /*
  2. ** $Id: lstring.h,v 1.61 2015/11/03 15:36:01 roberto Exp $
  3. ** String table (keep all strings handled by Lua)
  4. ** See Copyright Notice in lua.h
  5. */
  6. #ifndef lstring_h
  7. #define lstring_h
  8. #include "lgc.h"
  9. #include "lobject.h"
  10. #include "lstate.h"
  11. #define sizelstring(l) (sizeof(union UTString) + ((l) + 1) * sizeof(char))
  12. #define sizeludata(l) (sizeof(union UUdata) + (l))
  13. #define sizeudata(u) sizeludata((u)->len)
  14. #define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \
  15. (sizeof(s)/sizeof(char))-1))
  16. /*
  17. ** test whether a string is a reserved word
  18. */
  19. #define isreserved(s) ((s)->tt == LUA_TSHRSTR && (s)->extra > 0)
  20. /*
  21. ** equality for short strings, which are always internalized
  22. */
  23. #define eqshrstr(a,b) check_exp((a)->tt == LUA_TSHRSTR, (a) == (b))
  24. LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed);
  25. LUAI_FUNC unsigned int luaS_hashlongstr (TString *ts);
  26. LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b);
  27. LUAI_FUNC void luaS_resize (lua_State *L, int newsize);
  28. LUAI_FUNC void luaS_clearcache (global_State *g);
  29. LUAI_FUNC void luaS_init (lua_State *L);
  30. LUAI_FUNC void luaS_remove (lua_State *L, TString *ts);
  31. LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s);
  32. LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l);
  33. LUAI_FUNC TString *luaS_new (lua_State *L, const char *str);
  34. LUAI_FUNC TString *luaS_createlngstrobj (lua_State *L, size_t l);
  35. #endif