Ignore whitespace as well as comment syntax ``//`` and ``/* ... */``

def ignorespace(self):
        '''
        Ignore whitespace as well as comment syntax ``//`` and ``/* ... */``
        '''

        while True:

            self.ignore(whitespace)

            if self.nextstr('//'):
                self.noms(until='\n')
                continue

            if self.nextstr('/*'):
                self.expect('*/')
                continue

            break