xmltok_impl.c

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      case BT_SEMI:
        *nextTokPtr = ptr + MINBPC(enc);
        return XML_TOK_CHAR_REF;
      default:
        *nextTokPtr = ptr;
        return XML_TOK_INVALID;
      }
    }
  }
  return XML_TOK_PARTIAL;
}

/* ptr points to character following "&#" */

static int PTRCALL
PREFIX(scanCharRef)(const ENCODING *enc, const char *ptr,
                    const char *end, const char **nextTokPtr)
{
  if (ptr != end) {
    if (CHAR_MATCHES(enc, ptr, ASCII_x))
      return PREFIX(scanHexCharRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
    switch (BYTE_TYPE(enc, ptr)) {
    case BT_DIGIT:
      break;
    default:
      *nextTokPtr = ptr;
      return XML_TOK_INVALID;
    }
    for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
      switch (BYTE_TYPE(enc, ptr)) {
      case BT_DIGIT:
        break;
      case BT_SEMI:
        *nextTokPtr = ptr + MINBPC(enc);
        return XML_TOK_CHAR_REF;
      default:
        *nextTokPtr = ptr;
        return XML_TOK_INVALID;
      }
    }
  }
  return XML_TOK_PARTIAL;
}

/* ptr points to character following "&" */

static int PTRCALL
PREFIX(scanRef)(const ENCODING *enc, const char *ptr, const char *end,
                const char **nextTokPtr)
{
  if (ptr == end)
    return XML_TOK_PARTIAL;
  switch (BYTE_TYPE(enc, ptr)) {
  CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
  case BT_NUM:
    return PREFIX(scanCharRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
  default:
    *nextTokPtr = ptr;
    return XML_TOK_INVALID;
  }
  while (ptr != end) {
    switch (BYTE_TYPE(enc, ptr)) {
    CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
    case BT_SEMI:
      *nextTokPtr = ptr + MINBPC(enc);
      return XML_TOK_ENTITY_REF;
    default:
      *nextTokPtr = ptr;
      return XML_TOK_INVALID;
    }
  }
  return XML_TOK_PARTIAL;
}

/* ptr points to character following first character of attribute name */

static int PTRCALL
PREFIX(scanAtts)(const ENCODING *enc, const char *ptr, const char *end,
                 const char **nextTokPtr)
{
#ifdef XML_NS
  int hadColon = 0;
#endif
  while (ptr != end) {
    switch (BYTE_TYPE(enc, ptr)) {
    CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
#ifdef XML_NS
    case BT_COLON:
      if (hadColon) {
        *nextTokPtr = ptr;
        return XML_TOK_INVALID;
      }
      hadColon = 1;
      ptr += MINBPC(enc);
      if (ptr == end)
        return XML_TOK_PARTIAL;
      switch (BYTE_TYPE(enc, ptr)) {
      CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      default:
        *nextTokPtr = ptr;
        return XML_TOK_INVALID;
      }
      break;
#endif
    case BT_S: case BT_CR: case BT_LF:
      for (;;) {
        int t;

        ptr += MINBPC(enc);
        if (ptr == end)
          return XML_TOK_PARTIAL;
        t = BYTE_TYPE(enc, ptr);
        if (t == BT_EQUALS)
          break;
        switch (t) {
        case BT_S:
        case BT_LF:
        case BT_CR:
          break;
        default:
          *nextTokPtr = ptr;
          return XML_TOK_INVALID;
        }
      }
    /* fall through */
    case BT_EQUALS:
      {
        int open;
#ifdef XML_NS
        hadColon = 0;
#endif
        for (;;) {
          ptr += MINBPC(enc);
          if (ptr == end)
            return XML_TOK_PARTIAL;
          open = BYTE_TYPE(enc, ptr);
          if (open == BT_QUOT || open == BT_APOS)
            break;
          switch (open) {
          case BT_S:
          case BT_LF:
          case BT_CR:
            break;
          default:
            *nextTokPtr = ptr;
            return XML_TOK_INVALID;
          }
        }
        ptr += MINBPC(enc);
        /* in attribute value */
        for (;;) {
          int t;
          if (ptr == end)
            return XML_TOK_PARTIAL;
          t = BYTE_TYPE(enc, ptr);
          if (t == open)
            break;
          switch (t) {
          INVALID_CASES(ptr, nextTokPtr)
          case BT_AMP:
            {
              int tok = PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, &ptr);
              if (tok <= 0) {
                if (tok == XML_TOK_INVALID)
                  *nextTokPtr = ptr;
                return tok;
              }
              break;
            }
          case BT_LT:
            *nextTokPtr = ptr;
            return XML_TOK_INVALID;
          default:
            ptr += MINBPC(enc);
            break;
          }
        }
        ptr += MINBPC(enc);
        if (ptr == end)
          return XML_TOK_PARTIAL;
        switch (BYTE_TYPE(enc, ptr)) {
        case BT_S:
        case BT_CR:
        case BT_LF:
          break;
        case BT_SOL:
          goto sol;
        case BT_GT:
          goto gt;
        default:
          *nextTokPtr = ptr;
          return XML_TOK_INVALID;
        }
        /* ptr points to closing quote */
        for (;;) {
          ptr += MINBPC(enc);
          if (ptr == end)
            return XML_TOK_PARTIAL;
          switch (BYTE_TYPE(enc, ptr)) {
          CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
          case BT_S: case BT_CR: case BT_LF:
            continue;
          case BT_GT:
          gt:
            *nextTokPtr = ptr + MINBPC(enc);
            return XML_TOK_START_TAG_WITH_ATTS;
          case BT_SOL:
          sol:
            ptr += MINBPC(enc);
            if (ptr == end)
              return XML_TOK_PARTIAL;
            if (!CHAR_MATCHES(enc, ptr, ASCII_GT)) {
              *nextTokPtr = ptr;
              return XML_TOK_INVALID;
            }
            *nextTokPtr = ptr + MINBPC(enc);
            return XML_TOK_EMPTY_ELEMENT_WITH_ATTS;
          default:
            *nextTokPtr = ptr;
            return XML_TOK_INVALID;
          }
          break;
        }
        break;
      }
    default:
      *nextTokPtr = ptr;
      return XML_TOK_INVALID;
    }
  }
  return XML_TOK_PARTIAL;
}

/* ptr points to character following "<" */

static int PTRCALL
PREFIX(scanLt)(const ENCODING *enc, const char *ptr, const char *end,
               const char **nextTokPtr)
{
#ifdef XML_NS
  int hadColon;
#endif
  if (ptr == end)
    return XML_TOK_PARTIAL;
  switch (BYTE_TYPE(enc, ptr)) {
  CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
  case BT_EXCL:
    if ((ptr += MINBPC(enc)) == end)
      return XML_TOK_PARTIAL;
    switch (BYTE_TYPE(enc, ptr)) {
    case BT_MINUS:
      return PREFIX(scanComment)(enc, ptr + MINBPC(enc), end, nextTokPtr);
    case BT_LSQB:
      return PREFIX(scanCdataSection)(enc, ptr + MINBPC(enc),
                                      end, nextTokPtr);
    }
    *nextTokPtr = ptr;
    return XML_TOK_INVALID;
  case BT_QUEST:
    return PREFIX(scanPi)(enc, ptr + MINBPC(enc), end, nextTokPtr);
  case BT_SOL:
    return PREFIX(scanEndTag)(enc, ptr + MINBPC(enc), end, nextTokPtr);
  default:
    *nextTokPtr = ptr;
    return XML_TOK_INVALID;
  }
#ifdef XML_NS
  hadColon = 0;
#endif
  /* we have a start-tag */
  while (ptr != end) {
    switch (BYTE_TYPE(enc, ptr)) {
    CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
#ifdef XML_NS
    case BT_COLON:
      if (hadColon) {
        *nextTokPtr = ptr;
        return XML_TOK_INVALID;
      }
      hadColon = 1;
      ptr += MINBPC(enc);
      if (ptr == end)
        return XML_TOK_PARTIAL;
      switch (BYTE_TYPE(enc, ptr)) {
      CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      default:
        *nextTokPtr = ptr;
        return XML_TOK_INVALID;
      }
      break;
#endif
    case BT_S: case BT_CR: case BT_LF:
      {
        ptr += MINBPC(enc);
        while (ptr != end) {
          switch (BYTE_TYPE(enc, ptr)) {
          CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
          case BT_GT:
            goto gt;
          case BT_SOL:
            goto sol;
          case BT_S: case BT_CR: case BT_LF:
            ptr += MINBPC(enc);
            continue;
          default:
            *nextTokPtr = ptr;
            return XML_TOK_INVALID;
          }
          return PREFIX(scanAtts)(enc, ptr, end, nextTokPtr);
        }
        return XML_TOK_PARTIAL;
      }
    case BT_GT:
    gt:
      *nextTokPtr = ptr + MINBPC(enc);
      return XML_TOK_START_TAG_NO_ATTS;
    case BT_SOL:
    sol:
      ptr += MINBPC(enc);
      if (ptr == end)
        return XML_TOK_PARTIAL;
      if (!CHAR_MATCHES(enc, ptr, ASCII_GT)) {
        *nextTokPtr = ptr;
        return XML_TOK_INVALID;
      }
      *nextTokPtr = ptr + MINBPC(enc);
      return XML_TOK_EMPTY_ELEMENT_NO_ATTS;
    default:
      *nextTokPtr = ptr;
      return XML_TOK_INVALID;
    }
  }
  return XML_TOK_PARTIAL;
}

static int PTRCALL
PREFIX(contentTok)(const ENCODING *enc, const char *ptr, const char *end,
                   const char **nextTokPtr)
{
  if (ptr == end)
    return XML_TOK_NONE;
  if (MINBPC(enc) > 1) {
    size_t n = end - ptr;
    if (n & (MINBPC(enc) - 1)) {
      n &= ~(MINBPC(enc) - 1);
      if (n == 0)
        return XML_TOK_PARTIAL;
      end = ptr + n;
    }
  }
  switch (BYTE_TYPE(enc, ptr)) {
  case BT_LT:
    return PREFIX(scanLt)(enc, ptr + MINBPC(enc), end, nextTokPtr);
  case BT_AMP:
    return PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
  case BT_CR:
    ptr += MINBPC(enc);
    if (ptr == end)
      return XML_TOK_TRAILING_CR;
    if (BYTE_TYPE(enc, ptr) == BT_LF)
      ptr += MINBPC(enc);
    *nextTokPtr = ptr;
    return XML_TOK_DATA_NEWLINE;
  case BT_LF:
    *nextTokPtr = ptr + MINBPC(enc);
    return XML_TOK_DATA_NEWLINE;
  case BT_RSQB:
    ptr += MINBPC(enc);
    if (ptr == end)
      return XML_TOK_TRAILING_RSQB;
    if (!CHAR_MATCHES(enc, ptr, ASCII_RSQB))
      break;
    ptr += MINBPC(enc);
    if (ptr == end)
      return XML_TOK_TRAILING_RSQB;
    if (!CHAR_MATCHES(enc, ptr, ASCII_GT)) {
      ptr -= MINBPC(enc);
      break;
    }
    *nextTokPtr = ptr;
    return XML_TOK_INVALID;
  INVALID_CASES(ptr, nextTokPtr)
  default:
    ptr += MINBPC(enc);
    break;
  }
  while (ptr != end) {
    switch (BYTE_TYPE(enc, ptr)) {
#define LEAD_CASE(n) \
    case BT_LEAD ## n: \
      if (end - ptr < n || IS_INVALID_CHAR(enc, ptr, n)) { \
        *nextTokPtr = ptr; \
        return XML_TOK_DATA_CHARS; \
      } \
      ptr += n; \
      break;
    LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
#undef LEAD_CASE
    case BT_RSQB:
      if (ptr + MINBPC(enc) != end) {
         if (!CHAR_MATCHES(enc, ptr + MINBPC(enc), ASCII_RSQB)) {
           ptr += MINBPC(enc);
           break;
         }
         if (ptr + 2*MINBPC(enc) != end) {
           if (!CHAR_MATCHES(enc, ptr + 2*MINBPC(enc), ASCII_GT)) {
             ptr += MINBPC(enc);
             break;
           }
           *nextTokPtr = ptr + 2*MINBPC(enc);
           return XML_TOK_INVALID;
         }
      }
      /* fall through */
    case BT_AMP:
    case BT_LT:
    case BT_NONXML:
    case BT_MALFORM:
    case BT_TRAIL:
    case BT_CR:
    case BT_LF:
      *nextTokPtr = ptr;
      return XML_TOK_DATA_CHARS;
    default:
      ptr += MINBPC(enc);
      break;
    }
  }
  *nextTokPtr = ptr;
  return XML_TOK_DATA_CHARS;
}

/* ptr points to character following "%" */

static int PTRCALL
PREFIX(scanPercent)(const ENCODING *enc, const char *ptr, const char *end,
                    const char **nextTokPtr)
{
  if (ptr == end)
    return XML_TOK_PARTIAL;
  switch (BYTE_TYPE(enc, ptr)) {
  CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
  case BT_S: case BT_LF: case BT_CR: case BT_PERCNT:
    *nextTokPtr = ptr;
    return XML_TOK_PERCENT;