// undefined.
	if !st.Mode().IsRegular() {
		file.Close()
		return nil, errIsNotRegular
	}

	if st.Size() < offset+length {
		// Expected size cannot be satisfied for
		// requested offset and length
		file.Close()
		return nil, errFileCorrupt
	}

	if offset > 0 {
		if _, err = file.Seek(offset, io.SeekStart); err != nil {
			file.Close()

      if (elementsToRemove.contains(removeFrom.next())) {
        removeFrom.remove();
        result = true;
      }
    }
    return result;
  }

  /**
   * Removes every element that satisfies the provided predicate from the iterator. The iterator
   * will be left exhausted: its {@code hasNext()} method will return {@code false}.
   *
   * @param removeFrom the iterator to (potentially) remove elements from

            encodeSet = FRAGMENT_ENCODE_SET,
            alreadyEncoded = true,
            unicodeAllowed = true,
          )
      }

    /**
     * Re-encodes the components of this URL so that it satisfies (obsolete) RFC 2396, which is
     * particularly strict for certain components.
     */
    internal fun reencodeForUri() =
      apply {
        host = host?.replace(Regex("[\"<>^`{|}]"), "")