lex.c   [plain text]

/* C code produced by gperf version 2.7.2 */
/* Command-line: gperf -p -j1 -i 1 -g -o -t -N rb_reserved_word -k'1,3,$' ./keywords  */
struct kwtable {char *name; int id[2]; enum lex_state state;};

#define TOTAL_KEYWORDS 40
#define MIN_WORD_LENGTH 2
#define MAX_WORD_LENGTH 8
#define MIN_HASH_VALUE 6
#define MAX_HASH_VALUE 55
/* maximum key range = 50, duplicates = 0 */

#ifdef __GNUC__
__inline
#else
#ifdef __cplusplus
inline
#endif
#endif
static unsigned int
hash (str, len)
     register const char *str;
     register unsigned int len;
{
  static unsigned char asso_values[] =
    {
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 11, 56, 56, 36, 56,  1, 37,
      31,  1, 56, 56, 56, 56, 29, 56,  1, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56,  1, 56, 32,  1,  2,
       1,  1,  4, 23, 56, 17, 56, 20,  9,  2,
       9, 26, 14, 56,  5,  1,  1, 16, 56, 21,
      20,  9, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
      56, 56, 56, 56, 56, 56
    };
  register int hval = len;

  switch (hval)
    {
      default:
      case 3:
        hval += asso_values[(unsigned char)str[2]];
      case 2:
      case 1:
        hval += asso_values[(unsigned char)str[0]];
        break;
    }
  return hval + asso_values[(unsigned char)str[len - 1]];
}

#ifdef __GNUC__
__inline
#endif
struct kwtable *
rb_reserved_word (str, len)
     register const char *str;
     register unsigned int len;
{
  static struct kwtable wordlist[] =
    {
      {""}, {""}, {""}, {""}, {""}, {""},
      {"end", {kEND, kEND}, EXPR_END},
      {"else", {kELSE, kELSE}, EXPR_BEG},
      {"case", {kCASE, kCASE}, EXPR_BEG},
      {"ensure", {kENSURE, kENSURE}, EXPR_BEG},
      {"module", {kMODULE, kMODULE}, EXPR_BEG},
      {"elsif", {kELSIF, kELSIF}, EXPR_BEG},
      {"def", {kDEF, kDEF}, EXPR_FNAME},
      {"rescue", {kRESCUE, kRESCUE_MOD}, EXPR_MID},
      {"not", {kNOT, kNOT}, EXPR_BEG},
      {"then", {kTHEN, kTHEN}, EXPR_BEG},
      {"yield", {kYIELD, kYIELD}, EXPR_ARG},
      {"for", {kFOR, kFOR}, EXPR_BEG},
      {"self", {kSELF, kSELF}, EXPR_END},
      {"false", {kFALSE, kFALSE}, EXPR_END},
      {"retry", {kRETRY, kRETRY}, EXPR_END},
      {"return", {kRETURN, kRETURN}, EXPR_MID},
      {"true", {kTRUE, kTRUE}, EXPR_END},
      {"if", {kIF, kIF_MOD}, EXPR_BEG},
      {"defined?", {kDEFINED, kDEFINED}, EXPR_ARG},
      {"super", {kSUPER, kSUPER}, EXPR_ARG},
      {"undef", {kUNDEF, kUNDEF}, EXPR_FNAME},
      {"break", {kBREAK, kBREAK}, EXPR_MID},
      {"in", {kIN, kIN}, EXPR_BEG},
      {"do", {kDO, kDO}, EXPR_BEG},
      {"nil", {kNIL, kNIL}, EXPR_END},
      {"until", {kUNTIL, kUNTIL_MOD}, EXPR_BEG},
      {"unless", {kUNLESS, kUNLESS_MOD}, EXPR_BEG},
      {"or", {kOR, kOR}, EXPR_BEG},
      {"next", {kNEXT, kNEXT}, EXPR_MID},
      {"when", {kWHEN, kWHEN}, EXPR_BEG},
      {"redo", {kREDO, kREDO}, EXPR_END},
      {"and", {kAND, kAND}, EXPR_BEG},
      {"begin", {kBEGIN, kBEGIN}, EXPR_BEG},
      {"__LINE__", {k__LINE__, k__LINE__}, EXPR_END},
      {"class", {kCLASS, kCLASS}, EXPR_CLASS},
      {"__FILE__", {k__FILE__, k__FILE__}, EXPR_END},
      {"END", {klEND, klEND}, EXPR_END},
      {"BEGIN", {klBEGIN, klBEGIN}, EXPR_END},
      {"while", {kWHILE, kWHILE_MOD}, EXPR_BEG},
      {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
      {""},
      {"alias", {kALIAS, kALIAS}, EXPR_FNAME}
    };

  if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
    {
      register int key = hash (str, len);

      if (key <= MAX_HASH_VALUE && key >= 0)
        {
          register const char *s = wordlist[key].name;

          if (*str == *s && !strcmp (str + 1, s + 1))
            return &wordlist[key];
        }
    }
  return 0;
}