'[ \t]*\#'

def t_PPHASH(self, t):

    if self.line_pattern.match(t.lexer.lexdata, pos=t.lexer.lexpos):
        t.lexer.begin('ppline')
        self.pp_line = self.pp_filename = None
    elif self.pragma_pattern.match(t.lexer.lexdata, pos=t.lexer.lexpos):
        t.lexer.begin('pppragma')
    else:
        t.type = 'PPHASH'
        return t
