hash.h File Reference

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Functions
unsigned int	lhash_val_of_name_sys (syskind_t skind, LCID lcid, LPCSTR lpStr)

Function Documentation

lhash_val_of_name_sys()

unsigned int lhash_val_of_name_sys	(	syskind_t	skind,
		LCID	lcid,
		LPCSTR	lpStr
	)

Definition at line 510 of file hash.c.

{
  ULONG nOffset, nMask = skind == SYS_MAC ? 1 : 0;
  ULONG nHiWord, nLoWord = 0x0deadbee;
  const unsigned char *str = (const unsigned char *)lpStr, *pnLookup = NULL;
 
  if (!str)
    return 0;
 
  switch (PRIMARYLANGID(LANGIDFROMLCID(lcid)))
  {
  default:
    fprintf(stderr, "Unknown lcid %x, treating as latin-based, please report\n", lcid);
    /* .. Fall Through .. */
  case LANG_AFRIKAANS:  case LANG_ALBANIAN:   case LANG_ARMENIAN:
  case LANG_ASSAMESE:   case LANG_AZERI:      case LANG_BASQUE:
  case LANG_BELARUSIAN: case LANG_BENGALI:    case LANG_BULGARIAN:
  case LANG_CATALAN:    case LANG_DANISH:     case LANG_DIVEHI:
  case LANG_DUTCH:      case LANG_ENGLISH:    case LANG_ESTONIAN:
  case LANG_FAEROESE:   case LANG_FINNISH:    case LANG_FRENCH:
  case LANG_GALICIAN:   case LANG_GEORGIAN:   case LANG_GERMAN:
  case LANG_GUJARATI:   case LANG_HINDI:      case LANG_INDONESIAN:
  case LANG_ITALIAN:    case LANG_KANNADA:    case LANG_KASHMIRI:
  case LANG_KAZAK:      case LANG_KONKANI:    case LANG_KYRGYZ:
  case LANG_LATVIAN:    case LANG_LITHUANIAN: case LANG_MACEDONIAN:
  case LANG_MALAY:      case LANG_MALAYALAM:  case LANG_MANIPURI:
  case LANG_MARATHI:    case LANG_MONGOLIAN:  case LANG_NEPALI:
  case LANG_ORIYA:      case LANG_PORTUGUESE: case LANG_PUNJABI:
  case LANG_ROMANIAN:   case LANG_SANSKRIT:   case LANG_SERBIAN:
  case LANG_SINDHI:     case LANG_SLOVENIAN:  case LANG_SWAHILI:
  case LANG_SWEDISH:    case LANG_SYRIAC:     case LANG_TAMIL:
  case LANG_TATAR:      case LANG_TELUGU:     case LANG_THAI:
  case LANG_UKRAINIAN:  case LANG_URDU:       case LANG_UZBEK:
  case LANG_VIETNAMESE: case LANG_MALTESE:    case LANG_IRISH:
  case LANG_SAMI:       case LANG_UPPER_SORBIAN: case LANG_TSWANA:
  case LANG_XHOSA:      case LANG_ZULU:       case LANG_WELSH:
  case LANG_BRETON:     case LANG_NEUTRAL:
/* some languages not in all windows versions or ReactOS */
#ifdef LANG_GAELIC
  case LANG_GAELIC:
#endif
#ifdef LANG_TAJIK
  case LANG_TAJIK:
#endif
#ifdef LANG_ROMANSH
  case LANG_ROMANSH:
#endif
#ifdef LANG_SUTU
  case LANG_SUTU:
#endif
#ifdef LANG_TSONGA
  case LANG_TSONGA:
#endif
#ifdef LANG_VENDA
  case LANG_VENDA:
#endif
#ifdef LANG_ESPERANTO
  case LANG_ESPERANTO:
#endif
#ifdef LANG_WALON
  case LANG_WALON:
#endif
#ifdef LANG_CORNISH
  case LANG_CORNISH:
#endif
    nOffset = 16;
    pnLookup = Lookup_16;
    break;
  case LANG_CZECH:  case LANG_HUNGARIAN:  case LANG_POLISH:
  case LANG_SLOVAK: case LANG_SPANISH:
    nOffset = 32;
    pnLookup = Lookup_32;
    break;
  case LANG_HEBREW:
    nOffset = 48;
    pnLookup = Lookup_48;
    break;
  case LANG_JAPANESE:
    nOffset = 64;
    pnLookup = Lookup_64;
    break;
  case LANG_KOREAN:
    nOffset = 80;
    pnLookup = Lookup_80;
    break;
  case LANG_CHINESE:
    nOffset = 112;
    pnLookup = Lookup_112;
    break;
  case LANG_GREEK:
    nOffset = 128;
    pnLookup = Lookup_128;
    break;
  case LANG_ICELANDIC:
    nOffset = 144;
    pnLookup = Lookup_144;
    break;
  case LANG_TURKISH:
    nOffset = 160;
    pnLookup = Lookup_160;
    break;
  case LANG_NORWEGIAN:
    if (SUBLANGID(LANGIDFROMLCID(lcid)) == SUBLANG_NORWEGIAN_NYNORSK)
    {
      nOffset = 176;
      pnLookup = Lookup_176;
    }
    else
    {
      nOffset = 16;
      pnLookup = Lookup_16;
    }
    break;
  case LANG_ARABIC:
  case LANG_FARSI:
    nOffset = 208;
    pnLookup = Lookup_208;
    break;
  case LANG_RUSSIAN:
    nOffset = 224;
    pnLookup = Lookup_224;
    break;
  }
 
  nHiWord = (nOffset | nMask) << 16;
 
  while (*str)
  {
    nLoWord = 37 * nLoWord + pnLookup[*str > 0x7f && nMask ? *str + 0x80 : *str];
    str++;
  }
  /* Constrain to a prime modulo and sizeof(WORD) */
  nLoWord = (nLoWord % 65599) & 0xffff;
 
  return nHiWord | nLoWord;
}

Referenced by ctl2_encode_name().