*
     * @param reader the Reader from which to read the text to be normalized
     * @return a TextNormalizeContext containing the normalized text
     */
    public static TextNormalizeContext normalizeText(final Reader reader) {
        return new TextNormalizeContext(reader);
    }

    private static boolean isLastSpaceChar(final StringBuilder buf) {
        if (buf.length() == 0) {
            return false;
        }