* synopsis: ``%alpha{text}``
        * description: This function first ASCIIfies the given text, then all \
            non alphabet characters are replaced with whitespaces.

def tmpl_alpha(self, text):
        """
        * synopsis: ``%alpha{text}``
        * description: This function first ASCIIfies the given text, then all \
            non alphabet characters are replaced with whitespaces.
        """
        text = self.tmpl_asciify(text)
        text = re.sub(r'[^a-zA-Z]+', ' ', text)
        return re.sub(r'\s+', ' ', text)