try {
    val peek = peek()
    for (i in 0 until codePointLimit) {
      if (peek.exhausted()) {
        break
      }
      val codePoint = peek.readUtf8CodePoint()
      if (Character.isISOControl(codePoint) && !Character.isWhitespace(codePoint)) {
        return false
      }
    }
    return true
  } catch (_: EOFException) {
    return false // Truncated UTF-8 sequence.
  }

                }
                c[ci++] = ' ';
                i = src[srcIndex + si] & 0xFF;
                toHexChars(i, c, ci, 2);
                ci += 2;
                if (i < 0 || Character.isISOControl((char) i)) {
                    d[si % 16] = '.';
                } else {
                    d[si % 16] = (char) i;
                }
            } while (++si % 16 != 0);
            c[ci++] = ' ';

            int symbolSize = 0;
            int c;
            final Set<String> termCache = new HashSet<>(1000);
            try {
                while ((c = reader.read()) != -1) {
                    if (Character.isISOControl(c) || isSpaceChar(c)) {
                        if (duplicateTermRemoved) {
                            if (alphanumSize > 0) {

            int pos = escaped.indexOf(escapedHighlightPre);
            while (pos >= 0) {
                final int c = escaped.codePointAt(pos);
                if (Character.isISOControl(c) || highlightTerminalCharSet.contains(c)) {
                    break;
                }
                pos--;
            }

            value = escaped.substring(pos + 1);
        } else {