integer.py 文件源码

def __init__(self):
        super(GenericIntegerLexer, self).__init__()
        self.tokens = (
            'NUMBER',
            'PLUS',
            'MINUS',
            'TIMES',
            'DIVIDE',
            'POWER',
            'LPAREN',
            'RPAREN',
            'SCALAR',
            )
        self.t_NUMBER = r'\d+'
        self.t_PLUS   = r'\+'
        self.t_MINUS  = r'-'
        self.t_TIMES  = r'\*'
        self.t_DIVIDE  = r'/'
        self.t_POWER  = r'\^'
        self.t_LPAREN = r'\('
        self.t_RPAREN = r'\)'
        self.t_ignore = " \t"
        self.lexer = lex.lex(object=self)