Tutorial 3 Nodes

everyday parser LEPL

まんま

>>> from lepl import *
>>> abc = Node('a', 'b', 'c')
>>> abc[1]
'b'
>>> abc[1:]
['b', 'c']
>>> abc[:-1]
['a', 'b']
>>> fb = Node(('foo', 23), ('bar', 'baz'))
>>> fb.foo
[23]
>>> fb.bar
['baz']
>>> fb = Node(('foo', 23), ('bar', 'baz'), 43, 'zap', ('foo', 'again'))
>>> fb[:]
[23, 'baz', 43, 'zap', 'again']
>>> fb.foo
[23, 'again']