Exemplo n.º 1
0
MRB_API mrb_value
mrb_convert_to_integer(mrb_state *mrb, mrb_value val, int base)
{
  mrb_value tmp;

  if (mrb_nil_p(val)) {
    if (base != 0) goto arg_error;
      mrb_raise(mrb, E_TYPE_ERROR, "can't convert nil into Integer");
  }
  switch (mrb_type(val)) {
    case MRB_TT_FLOAT:
      if (base != 0) goto arg_error;
      if (FIXABLE(mrb_float(val))) {
        break;
      }
      return mrb_flo_to_fixnum(mrb, val);

    case MRB_TT_FIXNUM:
      if (base != 0) goto arg_error;
      return val;

    case MRB_TT_STRING:
    string_conv:
      return mrb_str_to_inum(mrb, val, base, TRUE);

    default:
      break;
  }
  if (base != 0) {
    tmp = mrb_check_string_type(mrb, val);
    if (!mrb_nil_p(tmp)) {
      goto string_conv;
    }
arg_error:
    mrb_raise(mrb, E_ARGUMENT_ERROR, "base specified for non string value");
  }
  tmp = convert_type(mrb, val, "Integer", "to_int", FALSE);
  if (mrb_nil_p(tmp)) {
    return mrb_to_integer(mrb, val, "to_i");
  }
  return tmp;
}
Exemplo n.º 2
0
mrb_value
mrb_str_format(mrb_state *mrb, int argc, const mrb_value *argv, mrb_value fmt)
{
  const char *p, *end;
  char *buf;
  mrb_int blen;
  mrb_int bsiz;
  mrb_value result;
  mrb_int n;
  mrb_int width;
  mrb_int prec;
  int flags = FNONE;
  int nextarg = 1;
  int posarg = 0;
  mrb_value nextvalue;
  mrb_value tmp;
  mrb_value str;
  mrb_value hash = mrb_undef_value();

#define CHECK_FOR_WIDTH(f)                                                  \
  if ((f) & FWIDTH) {                                                       \
    mrb_raise(mrb, E_ARGUMENT_ERROR, "width given twice");         \
  }                                                                         \
  if ((f) & FPREC0) {                                                       \
    mrb_raise(mrb, E_ARGUMENT_ERROR, "width after precision");     \
  }
#define CHECK_FOR_FLAGS(f)                                                  \
  if ((f) & FWIDTH) {                                                       \
    mrb_raise(mrb, E_ARGUMENT_ERROR, "flag after width");          \
  }                                                                         \
  if ((f) & FPREC0) {                                                       \
    mrb_raise(mrb, E_ARGUMENT_ERROR, "flag after precision");      \
  }

  ++argc;
  --argv;
  mrb_string_value(mrb, &fmt);
  p = RSTRING_PTR(fmt);
  end = p + RSTRING_LEN(fmt);
  blen = 0;
  bsiz = 120;
  result = mrb_str_buf_new(mrb, bsiz);
  buf = RSTRING_PTR(result);
  memset(buf, 0, bsiz);

  for (; p < end; p++) {
    const char *t;
    mrb_sym id = 0;

    for (t = p; t < end && *t != '%'; t++) ;
    PUSH(p, t - p);
    if (t >= end)
      goto sprint_exit; /* end of fmt string */

    p = t + 1;    /* skip `%' */

    width = prec = -1;
    nextvalue = mrb_undef_value();

retry:
    switch (*p) {
      default:
        mrb_raisef(mrb, E_ARGUMENT_ERROR, "malformed format string - \\%%S", mrb_str_new(mrb, p, 1));
        break;

      case ' ':
        CHECK_FOR_FLAGS(flags);
        flags |= FSPACE;
        p++;
        goto retry;

      case '#':
        CHECK_FOR_FLAGS(flags);
        flags |= FSHARP;
        p++;
        goto retry;

      case '+':
        CHECK_FOR_FLAGS(flags);
        flags |= FPLUS;
        p++;
        goto retry;

      case '-':
        CHECK_FOR_FLAGS(flags);
        flags |= FMINUS;
        p++;
        goto retry;

      case '0':
        CHECK_FOR_FLAGS(flags);
        flags |= FZERO;
        p++;
        goto retry;

      case '1': case '2': case '3': case '4':
      case '5': case '6': case '7': case '8': case '9':
        n = 0;
        GETNUM(n, width);
        if (*p == '$') {
          if (!mrb_undef_p(nextvalue)) {
            mrb_raisef(mrb, E_ARGUMENT_ERROR, "value given twice - %S$", mrb_fixnum_value(n));
          }
          nextvalue = GETPOSARG(n);
          p++;
          goto retry;
        }
        CHECK_FOR_WIDTH(flags);
        width = n;
        flags |= FWIDTH;
        goto retry;

      case '<':
      case '{': {
        const char *start = p;
        char term = (*p == '<') ? '>' : '}';
        mrb_value symname;

        for (; p < end && *p != term; )
          p++;
        if (id) {
          mrb_raisef(mrb, E_ARGUMENT_ERROR, "name%S after <%S>",
                     mrb_str_new(mrb, start, p - start + 1), mrb_sym2str(mrb, id));
        }
        symname = mrb_str_new(mrb, start + 1, p - start - 1);
        id = mrb_intern_str(mrb, symname);
        nextvalue = GETNAMEARG(mrb_symbol_value(id), start, (int)(p - start + 1));
        if (mrb_undef_p(nextvalue)) {
          mrb_raisef(mrb, E_KEY_ERROR, "key%S not found", mrb_str_new(mrb, start, p - start + 1));
        }
        if (term == '}') goto format_s;
        p++;
        goto retry;
      }

      case '*':
        CHECK_FOR_WIDTH(flags);
        flags |= FWIDTH;
        GETASTER(width);
        if (width < 0) {
          flags |= FMINUS;
          width = -width;
        }
        p++;
        goto retry;

      case '.':
        if (flags & FPREC0) {
          mrb_raise(mrb, E_ARGUMENT_ERROR, "precision given twice");
        }
        flags |= FPREC|FPREC0;

        prec = 0;
        p++;
        if (*p == '*') {
          GETASTER(prec);
          if (prec < 0) {  /* ignore negative precision */
            flags &= ~FPREC;
          }
          p++;
          goto retry;
        }

        GETNUM(prec, precision);
        goto retry;

      case '\n':
      case '\0':
        p--;

      case '%':
        if (flags != FNONE) {
          mrb_raise(mrb, E_ARGUMENT_ERROR, "invalid format character - %");
        }
        PUSH("%", 1);
        break;

      case 'c': {
        mrb_value val = GETARG();
        mrb_value tmp;
        unsigned int c;

        tmp = mrb_check_string_type(mrb, val);
        if (!mrb_nil_p(tmp)) {
          if (RSTRING_LEN(tmp) != 1 ) {
            mrb_raise(mrb, E_ARGUMENT_ERROR, "%c requires a character");
          }
          c = RSTRING_PTR(tmp)[0];
          n = 1;
        }
        else {
          c = mrb_fixnum(val);
          n = 1;
        }
        if (n <= 0) {
          mrb_raise(mrb, E_ARGUMENT_ERROR, "invalid character");
        }
        if (!(flags & FWIDTH)) {
          CHECK(n);
          buf[blen] = c;
          blen += n;
        }
        else if ((flags & FMINUS)) {
          CHECK(n);
          buf[blen] = c;
          blen += n;
          FILL(' ', width-1);
        }
        else {
          FILL(' ', width-1);
          CHECK(n);
          buf[blen] = c;
          blen += n;
        }
      }
      break;

      case 's':
      case 'p':
  format_s:
      {
        mrb_value arg = GETARG();
        mrb_int len;
        mrb_int slen;

        if (*p == 'p') arg = mrb_inspect(mrb, arg);
        str = mrb_obj_as_string(mrb, arg);
        len = RSTRING_LEN(str);
        RSTRING_LEN(result) = blen;
        if (flags&(FPREC|FWIDTH)) {
          slen = RSTRING_LEN(str);
          if (slen < 0) {
            mrb_raise(mrb, E_ARGUMENT_ERROR, "invalid mbstring sequence");
          }
          if ((flags&FPREC) && (prec < slen)) {
            char *p = RSTRING_PTR(str) + prec;
            slen = prec;
            len = p - RSTRING_PTR(str);
          }
          /* need to adjust multi-byte string pos */
          if ((flags&FWIDTH) && (width > slen)) {
            width -= (int)slen;
            if (!(flags&FMINUS)) {
              CHECK(width);
              while (width--) {
                buf[blen++] = ' ';
              }
            }
            CHECK(len);
            memcpy(&buf[blen], RSTRING_PTR(str), len);
            blen += len;
            if (flags&FMINUS) {
              CHECK(width);
              while (width--) {
                buf[blen++] = ' ';
              }
            }
            break;
          }
        }
        PUSH(RSTRING_PTR(str), len);
      }
      break;

      case 'd':
      case 'i':
      case 'o':
      case 'x':
      case 'X':
      case 'b':
      case 'B':
      case 'u': {
        mrb_value val = GETARG();
        char fbuf[32], nbuf[64], *s;
        const char *prefix = NULL;
        int sign = 0, dots = 0;
        char sc = 0;
        mrb_int v = 0, org_v = 0;
        int base;
        mrb_int len;

        switch (*p) {
          case 'd':
          case 'i':
          case 'u':
            sign = 1; break;
          case 'o':
          case 'x':
          case 'X':
          case 'b':
          case 'B':
            if (flags&(FPLUS|FSPACE)) sign = 1;
            break;
          default:
            break;
        }
        if (flags & FSHARP) {
          switch (*p) {
            case 'o': prefix = "0"; break;
            case 'x': prefix = "0x"; break;
            case 'X': prefix = "0X"; break;
            case 'b': prefix = "0b"; break;
            case 'B': prefix = "0B"; break;
            default: break;
          }
        }

  bin_retry:
        switch (mrb_type(val)) {
          case MRB_TT_FLOAT:
            if (FIXABLE(mrb_float(val))) {
              val = mrb_fixnum_value((mrb_int)mrb_float(val));
              goto bin_retry;
            }
            val = mrb_flt2big(mrb, mrb_float(val));
            if (mrb_fixnum_p(val)) goto bin_retry;
            break;
          case MRB_TT_STRING:
            val = mrb_str_to_inum(mrb, val, 0, TRUE);
            goto bin_retry;
          case MRB_TT_FIXNUM:
            v = mrb_fixnum(val);
            break;
          default:
            val = mrb_Integer(mrb, val);
            goto bin_retry;
        }

        switch (*p) {
          case 'o':
            base = 8; break;
          case 'x':
          case 'X':
            base = 16; break;
          case 'b':
          case 'B':
            base = 2; break;
          case 'u':
          case 'd':
          case 'i':
          default:
            base = 10; break;
        }

        if (base == 2) {
          org_v = v;
          if ( v < 0 && !sign ) {
            val = mrb_fix2binstr(mrb, mrb_fixnum_value(v), base);
            dots = 1;
          }
          else {
            val = mrb_fix2str(mrb, mrb_fixnum_value(v), base);
          }
          v = mrb_fixnum(mrb_str_to_inum(mrb, val, 10, 0/*Qfalse*/));
        }
        if (sign) {
          char c = *p;
          if (c == 'i') c = 'd'; /* %d and %i are identical */
          if (base == 2) c = 'd';
          if (v < 0) {
            v = -v;
            sc = '-';
            width--;
          }
          else if (flags & FPLUS) {
            sc = '+';
            width--;
          }
          else if (flags & FSPACE) {
            sc = ' ';
            width--;
          }
          snprintf(fbuf, sizeof(fbuf), "%%l%c", c);
          snprintf(nbuf, sizeof(nbuf), fbuf, v);
          s = nbuf;
        }
        else {
          char c = *p;
          if (c == 'X') c = 'x';
          if (base == 2) c = 'd';
          s = nbuf;
          if (v < 0) {
            dots = 1;
          }
          snprintf(fbuf, sizeof(fbuf), "%%l%c", c);
          snprintf(++s, sizeof(nbuf) - 1, fbuf, v);
          if (v < 0) {
            char d;

            s = remove_sign_bits(s, base);
            switch (base) {
              case 16: d = 'f'; break;
              case 8:  d = '7'; break;
              case 2:  d = '1'; break;
              default: d = 0; break;
            }

            if (d && *s != d) {
              *--s = d;
            }
          }
        }
        {
          size_t size;
          size = strlen(s);
          /* PARANOID: assert(size <= MRB_INT_MAX) */
          len = (mrb_int)size;
        }

        if (dots) {
          prec -= 2;
          width -= 2;
        }

        if (*p == 'X') {
          char *pp = s;
          int c;
          while ((c = (int)(unsigned char)*pp) != 0) {
            *pp = toupper(c);
            pp++;
          }
        }

        if (prefix && !prefix[1]) { /* octal */
          if (dots) {
            prefix = NULL;
          }
          else if (len == 1 && *s == '0') {
            len = 0;
            if (flags & FPREC) prec--;
          }
          else if ((flags & FPREC) && (prec > len)) {
            prefix = NULL;
          }
        }
        else if (len == 1 && *s == '0') {
          prefix = NULL;
        }

        if (prefix) {
          size_t size;
          size = strlen(prefix);
          /* PARANOID: assert(size <= MRB_INT_MAX).
           *  this check is absolutely paranoid. */
          width -= (mrb_int)size;
        }

        if ((flags & (FZERO|FMINUS|FPREC)) == FZERO) {
          prec = width;
          width = 0;
        }
        else {
          if (prec < len) {
            if (!prefix && prec == 0 && len == 1 && *s == '0') len = 0;
            prec = len;
          }
          width -= prec;
        }

        if (!(flags&FMINUS)) {
          CHECK(width);
          while (width-- > 0) {
            buf[blen++] = ' ';
          }
        }

        if (sc) PUSH(&sc, 1);

        if (prefix) {
          int plen = (int)strlen(prefix);
          PUSH(prefix, plen);
        }
        CHECK(prec - len);
        if (dots) PUSH("..", 2);

        if (v < 0 || (base == 2 && org_v < 0)) {
          char c = sign_bits(base, p);
          while (len < prec--) {
            buf[blen++] = c;
          }
        }
        else if ((flags & (FMINUS|FPREC)) != FMINUS) {
          char c = '0';
          while (len < prec--) {
            buf[blen++] = c;
          }
        }

        PUSH(s, len);
        CHECK(width);
        while (width-- > 0) {
          buf[blen++] = ' ';
        }
      }
      break;

      case 'f':
      case 'g':
      case 'G':
      case 'e':
      case 'E':
      case 'a':
      case 'A': {
        mrb_value val = GETARG();
        double fval;
        int i, need = 6;
        char fbuf[32];

        fval = mrb_float(mrb_Float(mrb, val));
        if (isnan(fval) || isinf(fval)) {
          const char *expr;
          const int elen = 3;

          if (isnan(fval)) {
            expr = "NaN";
          }
          else {
            expr = "Inf";
          }
          need = elen;
          if ((!isnan(fval) && fval < 0.0) || (flags & FPLUS))
            need++;
          if ((flags & FWIDTH) && need < width)
            need = width;

          CHECK(need + 1);
          n = snprintf(&buf[blen], need + 1, "%*s", need, "");
          if (flags & FMINUS) {
            if (!isnan(fval) && fval < 0.0)
              buf[blen++] = '-';
            else if (flags & FPLUS)
              buf[blen++] = '+';
            else if (flags & FSPACE)
              blen++;
            memcpy(&buf[blen], expr, elen);
          }
          else {
            if (!isnan(fval) && fval < 0.0)
              buf[blen + need - elen - 1] = '-';
            else if (flags & FPLUS)
              buf[blen + need - elen - 1] = '+';
            else if ((flags & FSPACE) && need > width)
              blen++;
            memcpy(&buf[blen + need - elen], expr, elen);
          }
          blen += strlen(&buf[blen]);
          break;
        }

        fmt_setup(fbuf, sizeof(fbuf), *p, flags, width, prec);
        need = 0;
        if (*p != 'e' && *p != 'E') {
          i = INT_MIN;
          frexp(fval, &i);
          if (i > 0)
            need = BIT_DIGITS(i);
        }
        need += (flags&FPREC) ? prec : 6;
        if ((flags&FWIDTH) && need < width)
          need = width;
        need += 20;

        CHECK(need);
        n = snprintf(&buf[blen], need, fbuf, fval);
        blen += n;
      }
      break;
    }
    flags = FNONE;
  }

  sprint_exit:
#if 0
  /* XXX - We cannot validate the number of arguments if (digit)$ style used.
   */
  if (posarg >= 0 && nextarg < argc) {
    const char *mesg = "too many arguments for format string";
    if (mrb_test(ruby_debug)) mrb_raise(mrb, E_ARGUMENT_ERROR, mesg);
    if (mrb_test(ruby_verbose)) mrb_warn("%s", mesg);
  }
#endif
  mrb_str_resize(mrb, result, blen);

  return result;
}
Exemplo n.º 3
0
static mrb_irep*
read_irep_record_1(mrb_state *mrb, const uint8_t *bin, size_t *len, uint8_t flags)
{
  int i;
  const uint8_t *src = bin;
  ptrdiff_t diff;
  uint16_t tt, pool_data_len, snl;
  int plen;
  int ai = mrb_gc_arena_save(mrb);
  mrb_irep *irep = mrb_add_irep(mrb);

  /* skip record size */
  src += sizeof(uint32_t);

  /* number of local variable */
  irep->nlocals = bin_to_uint16(src);
  src += sizeof(uint16_t);

  /* number of register variable */
  irep->nregs = bin_to_uint16(src);
  src += sizeof(uint16_t);

  /* number of child irep */
  irep->rlen = (size_t)bin_to_uint16(src);
  src += sizeof(uint16_t);

  /* Binary Data Section */
  /* ISEQ BLOCK */
  irep->ilen = (uint16_t)bin_to_uint32(src);
  src += sizeof(uint32_t);
  src += skip_padding(src);

  if (irep->ilen > 0) {
    if (SIZE_ERROR_MUL(irep->ilen, sizeof(mrb_code))) {
      return NULL;
    }
    if ((flags & FLAG_SRC_MALLOC) == 0 &&
        (flags & FLAG_BYTEORDER_NATIVE)) {
      irep->iseq = (mrb_code*)src;
      src += sizeof(mrb_code) * irep->ilen;
      irep->flags |= MRB_ISEQ_NO_FREE;
    }
    else {
      size_t data_len = sizeof(mrb_code) * irep->ilen;
      irep->iseq = (mrb_code *)mrb_malloc(mrb, data_len);
      memcpy(irep->iseq, src, data_len);
      src += data_len;
    }
  }

  /* POOL BLOCK */
  plen = bin_to_uint32(src); /* number of pool */
  src += sizeof(uint32_t);
  if (plen > 0) {
    if (SIZE_ERROR_MUL(plen, sizeof(mrb_value))) {
      return NULL;
    }
    irep->pool = (mrb_value*)mrb_malloc(mrb, sizeof(mrb_value) * plen);

    for (i = 0; i < plen; i++) {
      mrb_value s;

      tt = *src++; /* pool TT */
      pool_data_len = bin_to_uint16(src); /* pool data length */
      src += sizeof(uint16_t);
      if (flags & FLAG_SRC_MALLOC) {
        s = mrb_str_new(mrb, (char *)src, pool_data_len);
      }
      else {
        s = mrb_str_new_static(mrb, (char *)src, pool_data_len);
      }
      src += pool_data_len;
      switch (tt) { /* pool data */
      case IREP_TT_FIXNUM: {
        mrb_value num = mrb_str_to_inum(mrb, s, 10, FALSE);
#ifdef MRB_WITHOUT_FLOAT
        irep->pool[i] = num;
#else
        irep->pool[i] = mrb_float_p(num)? mrb_float_pool(mrb, mrb_float(num)) : num;
#endif
        }
        break;

#ifndef MRB_WITHOUT_FLOAT
      case IREP_TT_FLOAT:
        irep->pool[i] = mrb_float_pool(mrb, mrb_str_to_dbl(mrb, s, FALSE));
        break;
#endif

      case IREP_TT_STRING:
        irep->pool[i] = mrb_str_pool(mrb, s);
        break;

      default:
        /* should not happen */
        irep->pool[i] = mrb_nil_value();
        break;
      }
      irep->plen++;
      mrb_gc_arena_restore(mrb, ai);
    }
  }

  /* SYMS BLOCK */
  irep->slen = (uint16_t)bin_to_uint32(src);  /* syms length */
  src += sizeof(uint32_t);
  if (irep->slen > 0) {
    if (SIZE_ERROR_MUL(irep->slen, sizeof(mrb_sym))) {
      return NULL;
    }
    irep->syms = (mrb_sym *)mrb_malloc(mrb, sizeof(mrb_sym) * irep->slen);

    for (i = 0; i < irep->slen; i++) {
      snl = bin_to_uint16(src);               /* symbol name length */
      src += sizeof(uint16_t);

      if (snl == MRB_DUMP_NULL_SYM_LEN) {
        irep->syms[i] = 0;
        continue;
      }

      if (flags & FLAG_SRC_MALLOC) {
        irep->syms[i] = mrb_intern(mrb, (char *)src, snl);
      }
      else {
        irep->syms[i] = mrb_intern_static(mrb, (char *)src, snl);
      }
      src += snl + 1;

      mrb_gc_arena_restore(mrb, ai);
    }
  }

  irep->reps = (mrb_irep**)mrb_malloc(mrb, sizeof(mrb_irep*)*irep->rlen);

  diff = src - bin;
  mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
  *len = (size_t)diff;

  return irep;
}
Exemplo n.º 4
0
mrb_value
mrb_str_format(mrb_state *mrb, mrb_int argc, const mrb_value *argv, mrb_value fmt)
{
  const char *p, *end;
  char *buf;
  mrb_int blen;
  mrb_int bsiz;
  mrb_value result;
  mrb_int n;
  mrb_int width;
  mrb_int prec;
  int nextarg = 1;
  int posarg = 0;
  mrb_value nextvalue;
  mrb_value str;
  mrb_value hash = mrb_undef_value();

#define CHECK_FOR_WIDTH(f)                                                  \
  if ((f) & FWIDTH) {                                                       \
    mrb_raise(mrb, E_ARGUMENT_ERROR, "width given twice");         \
  }                                                                         \
  if ((f) & FPREC0) {                                                       \
    mrb_raise(mrb, E_ARGUMENT_ERROR, "width after precision");     \
  }
#define CHECK_FOR_FLAGS(f)                                                  \
  if ((f) & FWIDTH) {                                                       \
    mrb_raise(mrb, E_ARGUMENT_ERROR, "flag after width");          \
  }                                                                         \
  if ((f) & FPREC0) {                                                       \
    mrb_raise(mrb, E_ARGUMENT_ERROR, "flag after precision");      \
  }

  ++argc;
  --argv;
  mrb_to_str(mrb, fmt);
  p = RSTRING_PTR(fmt);
  end = p + RSTRING_LEN(fmt);
  blen = 0;
  bsiz = 120;
  result = mrb_str_new_capa(mrb, bsiz);
  buf = RSTRING_PTR(result);
  memset(buf, 0, bsiz);

  for (; p < end; p++) {
    const char *t;
    mrb_sym id = 0;
    int flags = FNONE;

    for (t = p; t < end && *t != '%'; t++) ;
    if (t + 1 == end) ++t;
    PUSH(p, t - p);
    if (t >= end)
      goto sprint_exit; /* end of fmt string */

    p = t + 1;    /* skip '%' */

    width = prec = -1;
    nextvalue = mrb_undef_value();

retry:
    switch (*p) {
      default:
        mrb_raisef(mrb, E_ARGUMENT_ERROR, "malformed format string - \\%%S", mrb_str_new(mrb, p, 1));
        break;

      case ' ':
        CHECK_FOR_FLAGS(flags);
        flags |= FSPACE;
        p++;
        goto retry;

      case '#':
        CHECK_FOR_FLAGS(flags);
        flags |= FSHARP;
        p++;
        goto retry;

      case '+':
        CHECK_FOR_FLAGS(flags);
        flags |= FPLUS;
        p++;
        goto retry;

      case '-':
        CHECK_FOR_FLAGS(flags);
        flags |= FMINUS;
        p++;
        goto retry;

      case '0':
        CHECK_FOR_FLAGS(flags);
        flags |= FZERO;
        p++;
        goto retry;

      case '1': case '2': case '3': case '4':
      case '5': case '6': case '7': case '8': case '9':
        n = 0;
        GETNUM(n, width);
        if (*p == '$') {
          if (!mrb_undef_p(nextvalue)) {
            mrb_raisef(mrb, E_ARGUMENT_ERROR, "value given twice - %S$", mrb_fixnum_value(n));
          }
          nextvalue = GETPOSARG(n);
          p++;
          goto retry;
        }
        CHECK_FOR_WIDTH(flags);
        width = n;
        flags |= FWIDTH;
        goto retry;

      case '<':
      case '{': {
        const char *start = p;
        char term = (*p == '<') ? '>' : '}';
        mrb_value symname;

        for (; p < end && *p != term; )
          p++;
        if (id) {
          mrb_raisef(mrb, E_ARGUMENT_ERROR, "name%S after <%S>",
                     mrb_str_new(mrb, start, p - start + 1), mrb_sym2str(mrb, id));
        }
        symname = mrb_str_new(mrb, start + 1, p - start - 1);
        id = mrb_intern_str(mrb, symname);
        nextvalue = GETNAMEARG(mrb_symbol_value(id), start, (mrb_int)(p - start + 1));
        if (mrb_undef_p(nextvalue)) {
          mrb_raisef(mrb, E_KEY_ERROR, "key%S not found", mrb_str_new(mrb, start, p - start + 1));
        }
        if (term == '}') goto format_s;
        p++;
        goto retry;
      }

      case '*':
        CHECK_FOR_WIDTH(flags);
        flags |= FWIDTH;
        GETASTER(width);
        if (width < 0) {
          flags |= FMINUS;
          width = -width;
        }
        p++;
        goto retry;

      case '.':
        if (flags & FPREC0) {
          mrb_raise(mrb, E_ARGUMENT_ERROR, "precision given twice");
        }
        flags |= FPREC|FPREC0;

        prec = 0;
        p++;
        if (*p == '*') {
          GETASTER(prec);
          if (prec < 0) {  /* ignore negative precision */
            flags &= ~FPREC;
          }
          p++;
          goto retry;
        }

        GETNUM(prec, precision);
        goto retry;

      case '\n':
      case '\0':
        p--;
        /* fallthrough */
      case '%':
        if (flags != FNONE) {
          mrb_raise(mrb, E_ARGUMENT_ERROR, "invalid format character - %");
        }
        PUSH("%", 1);
        break;

      case 'c': {
        mrb_value val = GETARG();
        mrb_value tmp;
        char *c;

        tmp = mrb_check_string_type(mrb, val);
        if (!mrb_nil_p(tmp)) {
          if (RSTRING_LEN(tmp) != 1) {
            mrb_raise(mrb, E_ARGUMENT_ERROR, "%c requires a character");
          }
        }
        else if (mrb_fixnum_p(val)) {
          mrb_int n = mrb_fixnum(val);

          if (n < 0x80) {
            char buf[1];

            buf[0] = (char)n;
            tmp = mrb_str_new(mrb, buf, 1);
          }
          else {
            tmp = mrb_funcall(mrb, val, "chr", 0);
            mrb_check_type(mrb, tmp, MRB_TT_STRING);
          }
        }
        else {
          mrb_raise(mrb, E_ARGUMENT_ERROR, "invalid character");
        }
        c = RSTRING_PTR(tmp);
        n = RSTRING_LEN(tmp);
        if (!(flags & FWIDTH)) {
          PUSH(c, n);
        }
        else if ((flags & FMINUS)) {
          PUSH(c, n);
          if (width>0) FILL(' ', width-1);
        }
        else {
          if (width>0) FILL(' ', width-1);
          PUSH(c, n);
        }
      }
      break;

      case 's':
      case 'p':
  format_s:
      {
        mrb_value arg = GETARG();
        mrb_int len;
        mrb_int slen;

        if (*p == 'p') arg = mrb_inspect(mrb, arg);
        str = mrb_obj_as_string(mrb, arg);
        len = RSTRING_LEN(str);
        if (RSTRING(result)->flags & MRB_STR_EMBED) {
          mrb_int tmp_n = len;
          RSTRING(result)->flags &= ~MRB_STR_EMBED_LEN_MASK;
          RSTRING(result)->flags |= tmp_n << MRB_STR_EMBED_LEN_SHIFT;
        }
        else {
          RSTRING(result)->as.heap.len = blen;
        }
        if (flags&(FPREC|FWIDTH)) {
          slen = RSTRING_LEN(str);
          if (slen < 0) {
            mrb_raise(mrb, E_ARGUMENT_ERROR, "invalid mbstring sequence");
          }
          if ((flags&FPREC) && (prec < slen)) {
            char *p = RSTRING_PTR(str) + prec;
            slen = prec;
            len = (mrb_int)(p - RSTRING_PTR(str));
          }
          /* need to adjust multi-byte string pos */
          if ((flags&FWIDTH) && (width > slen)) {
            width -= (int)slen;
            if (!(flags&FMINUS)) {
              FILL(' ', width);
            }
            PUSH(RSTRING_PTR(str), len);
            if (flags&FMINUS) {
              FILL(' ', width);
            }
            break;
          }
        }
        PUSH(RSTRING_PTR(str), len);
      }
      break;

      case 'd':
      case 'i':
      case 'o':
      case 'x':
      case 'X':
      case 'b':
      case 'B':
      case 'u': {
        mrb_value val = GETARG();
        char nbuf[68], *s;
        const char *prefix = NULL;
        int sign = 0, dots = 0;
        char sc = 0;
        mrb_int v = 0;
        int base;
        mrb_int len;

        if (flags & FSHARP) {
          switch (*p) {
            case 'o': prefix = "0"; break;
            case 'x': prefix = "0x"; break;
            case 'X': prefix = "0X"; break;
            case 'b': prefix = "0b"; break;
            case 'B': prefix = "0B"; break;
            default: break;
          }
        }

  bin_retry:
        switch (mrb_type(val)) {
#ifndef MRB_WITHOUT_FLOAT
          case MRB_TT_FLOAT:
            val = mrb_flo_to_fixnum(mrb, val);
            if (mrb_fixnum_p(val)) goto bin_retry;
            break;
#endif
          case MRB_TT_STRING:
            val = mrb_str_to_inum(mrb, val, 0, TRUE);
            goto bin_retry;
          case MRB_TT_FIXNUM:
            v = mrb_fixnum(val);
            break;
          default:
            val = mrb_Integer(mrb, val);
            goto bin_retry;
        }

        switch (*p) {
          case 'o':
            base = 8; break;
          case 'x':
          case 'X':
            base = 16; break;
          case 'b':
          case 'B':
            base = 2; break;
          case 'u':
          case 'd':
          case 'i':
            sign = 1;
          default:
            base = 10; break;
        }

        if (sign) {
          if (v >= 0) {
            if (flags & FPLUS) {
              sc = '+';
              width--;
            }
            else if (flags & FSPACE) {
              sc = ' ';
              width--;
            }
          }
          else {
            sc = '-';
            width--;
          }
          mrb_assert(base == 10);
          snprintf(nbuf, sizeof(nbuf), "%" MRB_PRId, v);
          s = nbuf;
          if (v < 0) s++;       /* skip minus sign */
        }
        else {
          s = nbuf;
          if (v < 0) {
            dots = 1;
          }
          switch (base) {
          case 2:
            if (v < 0) {
              val = mrb_fix2binstr(mrb, mrb_fixnum_value(v), base);
            }
            else {
              val = mrb_fixnum_to_str(mrb, mrb_fixnum_value(v), base);
            }
            strncpy(++s, RSTRING_PTR(val), sizeof(nbuf)-1);
            break;
          case 8:
            snprintf(++s, sizeof(nbuf)-1, "%" MRB_PRIo, v);
            break;
          case 16:
            snprintf(++s, sizeof(nbuf)-1, "%" MRB_PRIx, v);
            break;
          }
          if (v < 0) {
            char d;

            s = remove_sign_bits(s, base);
            switch (base) {
              case 16: d = 'f'; break;
              case 8:  d = '7'; break;
              case 2:  d = '1'; break;
              default: d = 0; break;
            }

            if (d && *s != d) {
              *--s = d;
            }
          }
        }
        {
          size_t size;
          size = strlen(s);
          /* PARANOID: assert(size <= MRB_INT_MAX) */
          len = (mrb_int)size;
        }

        if (*p == 'X') {
          char *pp = s;
          int c;
          while ((c = (int)(unsigned char)*pp) != 0) {
            *pp = toupper(c);
            pp++;
          }
        }

        if (prefix && !prefix[1]) { /* octal */
          if (dots) {
            prefix = NULL;
          }
          else if (len == 1 && *s == '0') {
            len = 0;
            if (flags & FPREC) prec--;
          }
          else if ((flags & FPREC) && (prec > len)) {
            prefix = NULL;
          }
        }
        else if (len == 1 && *s == '0') {
          prefix = NULL;
        }

        if (prefix) {
          size_t size;
          size = strlen(prefix);
          /* PARANOID: assert(size <= MRB_INT_MAX).
           *  this check is absolutely paranoid. */
          width -= (mrb_int)size;
        }

        if ((flags & (FZERO|FMINUS|FPREC)) == FZERO) {
          prec = width;
          width = 0;
        }
        else {
          if (prec < len) {
            if (!prefix && prec == 0 && len == 1 && *s == '0') len = 0;
            prec = len;
          }
          width -= prec;
        }

        if (!(flags&FMINUS) && width > 0) {
          FILL(' ', width);
          width = 0;
        }

        if (sc) PUSH(&sc, 1);

        if (prefix) {
          int plen = (int)strlen(prefix);
          PUSH(prefix, plen);
        }
        if (dots) {
          prec -= 2;
          width -= 2;
          PUSH("..", 2);
        }

        if (prec > len) {
          CHECK(prec - len);
          if ((flags & (FMINUS|FPREC)) != FMINUS) {
            char c = '0';
            FILL(c, prec - len);
          } else if (v < 0) {
            char c = sign_bits(base, p);
            FILL(c, prec - len);
          }
        }
        PUSH(s, len);
        if (width > 0) {
          FILL(' ', width);
        }
      }
      break;

#ifndef MRB_WITHOUT_FLOAT
      case 'f':
      case 'g':
      case 'G':
      case 'e':
      case 'E':
      case 'a':
      case 'A': {
        mrb_value val = GETARG();
        double fval;
        mrb_int i;
        mrb_int need = 6;
        char fbuf[32];
        int frexp_result;

        fval = mrb_float(mrb_Float(mrb, val));
        if (!isfinite(fval)) {
          const char *expr;
          const mrb_int elen = 3;
          char sign = '\0';

          if (isnan(fval)) {
            expr = "NaN";
          }
          else {
            expr = "Inf";
          }
          need = elen;
          if (!isnan(fval) && fval < 0.0)
            sign = '-';
          else if (flags & (FPLUS|FSPACE))
            sign = (flags & FPLUS) ? '+' : ' ';
          if (sign)
            ++need;
          if ((flags & FWIDTH) && need < width)
            need = width;

          if (need < 0) {
            mrb_raise(mrb, E_ARGUMENT_ERROR, "width too big");
          }
          FILL(' ', need);
          if (flags & FMINUS) {
            if (sign)
              buf[blen - need--] = sign;
            memcpy(&buf[blen - need], expr, elen);
          }
          else {
            if (sign)
              buf[blen - elen - 1] = sign;
            memcpy(&buf[blen - elen], expr, elen);
          }
          break;
        }

        fmt_setup(fbuf, sizeof(fbuf), *p, flags, width, prec);
        need = 0;
        if (*p != 'e' && *p != 'E') {
          i = INT_MIN;
          frexp(fval, &frexp_result);
          i = (mrb_int)frexp_result;
          if (i > 0)
            need = BIT_DIGITS(i);
        }
        if (need > MRB_INT_MAX - ((flags&FPREC) ? prec : 6)) {
        too_big_width:
          mrb_raise(mrb, E_ARGUMENT_ERROR,
                    (width > prec ? "width too big" : "prec too big"));
        }
        need += (flags&FPREC) ? prec : 6;
        if ((flags&FWIDTH) && need < width)
          need = width;
        if (need > MRB_INT_MAX - 20) {
          goto too_big_width;
        }
        need += 20;

        CHECK(need);
        n = snprintf(&buf[blen], need, fbuf, fval);
        if (n < 0 || n >= need) {
          mrb_raise(mrb, E_RUNTIME_ERROR, "formatting error");
        }
        blen += n;
      }
      break;
#endif
    }
    flags = FNONE;
  }

  sprint_exit:
#if 0
  /* XXX - We cannot validate the number of arguments if (digit)$ style used.
   */
  if (posarg >= 0 && nextarg < argc) {
    const char *mesg = "too many arguments for format string";
    if (mrb_test(ruby_debug)) mrb_raise(mrb, E_ARGUMENT_ERROR, mesg);
    if (mrb_test(ruby_verbose)) mrb_warn(mrb, "%S", mrb_str_new_cstr(mrb, mesg));
  }
#endif
  mrb_str_resize(mrb, result, blen);

  return result;
}
Exemplo n.º 5
0
Arquivo: load.c Projeto: kano4/mruby
static int
read_rite_irep_record(mrb_state *mrb, const uint8_t *bin, uint32_t *len)
{
  int ret;
  size_t i;
  const uint8_t *src = bin;
  uint16_t tt, pool_data_len, snl;
  size_t plen;
  int ai = mrb_gc_arena_save(mrb);
  mrb_irep *irep = mrb_add_irep(mrb);

  // skip record size
  src += sizeof(uint32_t);

  // number of local variable
  irep->nlocals = bin_to_uint16(src);
  src += sizeof(uint16_t);

  // number of register variable
  irep->nregs = bin_to_uint16(src);         
  src += sizeof(uint16_t);

  // Binary Data Section
  // ISEQ BLOCK
  irep->ilen = bin_to_uint32(src);
  src += sizeof(uint32_t);
  if (irep->ilen > 0) {
    irep->iseq = (mrb_code *)mrb_malloc(mrb, sizeof(mrb_code) * irep->ilen);
    if (irep->iseq == NULL) {
      ret = MRB_DUMP_GENERAL_FAILURE;
      goto error_exit;
    }
    for (i = 0; i < irep->ilen; i++) {
      irep->iseq[i] = bin_to_uint32(src);     //iseq
      src += sizeof(uint32_t);
    }
  }

  //POOL BLOCK
  plen = bin_to_uint32(src); /* number of pool */
  src += sizeof(uint32_t);
  if (plen > 0) {
    irep->pool = (mrb_value *)mrb_malloc(mrb, sizeof(mrb_value) * plen);
    if (irep->pool == NULL) {
      ret = MRB_DUMP_GENERAL_FAILURE;
      goto error_exit;
    }

    for (i = 0; i < plen; i++) {
      mrb_value s;
      tt = *src++; //pool TT
      pool_data_len = bin_to_uint16(src); //pool data length
      src += sizeof(uint16_t);
      s = mrb_str_new(mrb, (char *)src, pool_data_len);
      src += pool_data_len;
      switch (tt) { //pool data
      case MRB_TT_FIXNUM:
        irep->pool[i] = mrb_str_to_inum(mrb, s, 10, FALSE);
        break;

      case MRB_TT_FLOAT:
        irep->pool[i] = mrb_float_value(mrb_str_to_dbl(mrb, s, FALSE));
        break;

      case MRB_TT_STRING:
        irep->pool[i] = s;
        break;

      default:
        irep->pool[i] = mrb_nil_value();
        break;
      }
      irep->plen++;
      mrb_gc_arena_restore(mrb, ai);
    }
  }

  //SYMS BLOCK
  irep->slen = bin_to_uint32(src);  //syms length
  src += sizeof(uint32_t);
  if (irep->slen > 0) {
    irep->syms = (mrb_sym *)mrb_malloc(mrb, sizeof(mrb_sym) * irep->slen);
    if (irep->syms == NULL) {
      ret = MRB_DUMP_GENERAL_FAILURE;
      goto error_exit;
    }

    for (i = 0; i < irep->slen; i++) {
      snl = bin_to_uint16(src);               //symbol name length
      src += sizeof(uint16_t);

      if (snl == MRB_DUMP_NULL_SYM_LEN) {
        irep->syms[i] = 0;
        continue;
      }

      irep->syms[i] = mrb_intern2(mrb, (char *)src, snl);
      src += snl + 1;

      mrb_gc_arena_restore(mrb, ai);
    }
  }
  *len = src - bin;

  ret = MRB_DUMP_OK;
error_exit:
  return ret;
}
Exemplo n.º 6
0
static mrb_value
mrb_str_oct(mrb_state *mrb, mrb_value self)
{
  return mrb_str_to_inum(mrb, self, 8, FALSE);
}
Exemplo n.º 7
0
static mrb_value
mrb_str_hex(mrb_state *mrb, mrb_value self)
{
  return mrb_str_to_inum(mrb, self, 16, FALSE);
}
Exemplo n.º 8
0
Arquivo: load.c Projeto: Ancurio/mruby
static mrb_irep*
read_irep_record_1(mrb_state *mrb, const uint8_t *bin, size_t *len, mrb_bool alloc)
{
  size_t i;
  const uint8_t *src = bin;
  ptrdiff_t diff;
  uint16_t tt, pool_data_len, snl;
  size_t plen;
  int ai = mrb_gc_arena_save(mrb);
  mrb_irep *irep = mrb_add_irep(mrb);

  /* skip record size */
  src += sizeof(uint32_t);

  /* number of local variable */
  irep->nlocals = bin_to_uint16(src);
  src += sizeof(uint16_t);

  /* number of register variable */
  irep->nregs = bin_to_uint16(src);
  src += sizeof(uint16_t);

  /* number of child irep */
  irep->rlen = (size_t)bin_to_uint16(src);
  src += sizeof(uint16_t);

  /* Binary Data Section */
  /* ISEQ BLOCK */
  irep->ilen = (size_t)bin_to_uint32(src);
  src += sizeof(uint32_t);
  if (irep->ilen > 0) {
    if (SIZE_ERROR_MUL(sizeof(mrb_code), irep->ilen)) {
      return NULL;
    }
    irep->iseq = (mrb_code *)mrb_malloc(mrb, sizeof(mrb_code) * irep->ilen);
    for (i = 0; i < irep->ilen; i++) {
      irep->iseq[i] = (size_t)bin_to_uint32(src);     /* iseq */
      src += sizeof(uint32_t);
    }
  }

  /* POOL BLOCK */
  plen = (size_t)bin_to_uint32(src); /* number of pool */
  src += sizeof(uint32_t);
  if (plen > 0) {
    if (SIZE_ERROR_MUL(sizeof(mrb_value), plen)) {
      return NULL;
    }
    irep->pool = (mrb_value*)mrb_malloc(mrb, sizeof(mrb_value) * plen);

    for (i = 0; i < plen; i++) {
      mrb_value s;

      tt = *src++; /* pool TT */
      pool_data_len = bin_to_uint16(src); /* pool data length */
      src += sizeof(uint16_t);
      if (alloc) {
        s = mrb_str_new(mrb, (char *)src, pool_data_len);
      }
      else {
        s = mrb_str_new_static(mrb, (char *)src, pool_data_len);
      }
      src += pool_data_len;
      switch (tt) { /* pool data */
      case IREP_TT_FIXNUM:
        irep->pool[i] = mrb_str_to_inum(mrb, s, 10, FALSE);
        break;

      case IREP_TT_FLOAT:
        irep->pool[i] = mrb_float_pool(mrb, mrb_str_to_dbl(mrb, s, FALSE));
        break;

      case IREP_TT_STRING:
        irep->pool[i] = mrb_str_pool(mrb, s);
        break;

      default:
        /* should not happen */
        irep->pool[i] = mrb_nil_value();
        break;
      }
      irep->plen++;
      mrb_gc_arena_restore(mrb, ai);
    }
  }

  /* SYMS BLOCK */
  irep->slen = (size_t)bin_to_uint32(src);  /* syms length */
  src += sizeof(uint32_t);
  if (irep->slen > 0) {
    if (SIZE_ERROR_MUL(sizeof(mrb_sym), irep->slen)) {
      return NULL;
    }
    irep->syms = (mrb_sym *)mrb_malloc(mrb, sizeof(mrb_sym) * irep->slen);

    for (i = 0; i < irep->slen; i++) {
      snl = bin_to_uint16(src);               /* symbol name length */
      src += sizeof(uint16_t);

      if (snl == MRB_DUMP_NULL_SYM_LEN) {
        irep->syms[i] = 0;
        continue;
      }

      if (alloc) {
        irep->syms[i] = mrb_intern(mrb, (char *)src, snl);
      }
      else {
        irep->syms[i] = mrb_intern_static(mrb, (char *)src, snl);
      }
      src += snl + 1;

      mrb_gc_arena_restore(mrb, ai);
    }
  }

  irep->reps = (mrb_irep**)mrb_malloc(mrb, sizeof(mrb_irep*)*irep->rlen);

  diff = src - bin;
  mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
  *len = (size_t)diff;

  return irep;
}