本文整理汇总了Python中lib2to3.pytree.NodePattern方法的典型用法代码示例。如果您正苦于以下问题：Python pytree.NodePattern方法的具体用法？Python pytree.NodePattern怎么用？Python pytree.NodePattern使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类lib2to3.pytree的用法示例。
在下文中一共展示了pytree.NodePattern方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_basic_patterns
# 需要导入模块: from lib2to3 import pytree [as 别名]
# 或者: from lib2to3.pytree import NodePattern [as 别名]
def test_basic_patterns(self):
# Build a tree
l1 = pytree.Leaf(100, "foo")
l2 = pytree.Leaf(100, "bar")
l3 = pytree.Leaf(100, "foo")
n1 = pytree.Node(1000, [l1, l2])
n2 = pytree.Node(1000, [l3])
root = pytree.Node(1000, [n1, n2])
# Build a pattern matching a leaf
pl = pytree.LeafPattern(100, "foo", name="pl")
r = {}
self.assertFalse(pl.match(root, results=r))
self.assertEqual(r, {})
self.assertFalse(pl.match(n1, results=r))
self.assertEqual(r, {})
self.assertFalse(pl.match(n2, results=r))
self.assertEqual(r, {})
self.assertTrue(pl.match(l1, results=r))
self.assertEqual(r, {"pl": l1})
r = {}
self.assertFalse(pl.match(l2, results=r))
self.assertEqual(r, {})
# Build a pattern matching a node
pn = pytree.NodePattern(1000, [pl], name="pn")
self.assertFalse(pn.match(root, results=r))
self.assertEqual(r, {})
self.assertFalse(pn.match(n1, results=r))
self.assertEqual(r, {})
self.assertTrue(pn.match(n2, results=r))
self.assertEqual(r, {"pn": n2, "pl": l3})
r = {}
self.assertFalse(pn.match(l1, results=r))
self.assertEqual(r, {})
self.assertFalse(pn.match(l2, results=r))
self.assertEqual(r, {}) 示例2: test_wildcard
# 需要导入模块: from lib2to3 import pytree [as 别名]
# 或者: from lib2to3.pytree import NodePattern [as 别名]
def test_wildcard(self):
# Build a tree for testing
l1 = pytree.Leaf(100, "foo")
l2 = pytree.Leaf(100, "bar")
l3 = pytree.Leaf(100, "foo")
n1 = pytree.Node(1000, [l1, l2])
n2 = pytree.Node(1000, [l3])
root = pytree.Node(1000, [n1, n2])
# Build a pattern
pl = pytree.LeafPattern(100, "foo", name="pl")
pn = pytree.NodePattern(1000, [pl], name="pn")
pw = pytree.WildcardPattern([[pn], [pl, pl]], name="pw")
r = {}
self.assertFalse(pw.match_seq([root], r))
self.assertEqual(r, {})
self.assertFalse(pw.match_seq([n1], r))
self.assertEqual(r, {})
self.assertTrue(pw.match_seq([n2], r))
# These are easier to debug
self.assertEqual(sorted(r.keys()), ["pl", "pn", "pw"])
self.assertEqual(r["pl"], l1)
self.assertEqual(r["pn"], n2)
self.assertEqual(r["pw"], [n2])
# But this is equivalent
self.assertEqual(r, {"pl": l1, "pn": n2, "pw": [n2]})
r = {}
self.assertTrue(pw.match_seq([l1, l3], r))
self.assertEqual(r, {"pl": l3, "pw": [l1, l3]})
self.assertIs(r["pl"], l3)
r = {} 示例3: test_generate_matches
# 需要导入模块: from lib2to3 import pytree [as 别名]
# 或者: from lib2to3.pytree import NodePattern [as 别名]
def test_generate_matches(self):
la = pytree.Leaf(1, "a")
lb = pytree.Leaf(1, "b")
lc = pytree.Leaf(1, "c")
ld = pytree.Leaf(1, "d")
le = pytree.Leaf(1, "e")
lf = pytree.Leaf(1, "f")
leaves = [la, lb, lc, ld, le, lf]
root = pytree.Node(1000, leaves)
pa = pytree.LeafPattern(1, "a", "pa")
pb = pytree.LeafPattern(1, "b", "pb")
pc = pytree.LeafPattern(1, "c", "pc")
pd = pytree.LeafPattern(1, "d", "pd")
pe = pytree.LeafPattern(1, "e", "pe")
pf = pytree.LeafPattern(1, "f", "pf")
pw = pytree.WildcardPattern([[pa, pb, pc], [pd, pe],
[pa, pb], [pc, pd], [pe, pf]],
min=1, max=4, name="pw")
self.assertEqual([x[0] for x in pw.generate_matches(leaves)],
[3, 5, 2, 4, 6])
pr = pytree.NodePattern(type=1000, content=[pw], name="pr")
matches = list(pytree.generate_matches([pr], [root]))
self.assertEqual(len(matches), 1)
c, r = matches[0]
self.assertEqual(c, 1)
self.assertEqual(str(r["pr"]), "abcdef")
self.assertEqual(r["pw"], [la, lb, lc, ld, le, lf])
for c in "abcdef":
self.assertEqual(r["p" + c], pytree.Leaf(1, c)) 示例4: test_has_key_example
# 需要导入模块: from lib2to3 import pytree [as 别名]
# 或者: from lib2to3.pytree import NodePattern [as 别名]
def test_has_key_example(self):
pattern = pytree.NodePattern(331,
(pytree.LeafPattern(7),
pytree.WildcardPattern(name="args"),
pytree.LeafPattern(8)))
l1 = pytree.Leaf(7, "(")
l2 = pytree.Leaf(3, "x")
l3 = pytree.Leaf(8, ")")
node = pytree.Node(331, [l1, l2, l3])
r = {}
self.assertTrue(pattern.match(node, r))
self.assertEqual(r["args"], [l2]) 示例5: test_wildcard
# 需要导入模块: from lib2to3 import pytree [as 别名]
# 或者: from lib2to3.pytree import NodePattern [as 别名]
def test_wildcard(self):
# Build a tree for testing
l1 = pytree.Leaf(100, "foo")
l2 = pytree.Leaf(100, "bar")
l3 = pytree.Leaf(100, "foo")
n1 = pytree.Node(1000, [l1, l2])
n2 = pytree.Node(1000, [l3])
root = pytree.Node(1000, [n1, n2])
# Build a pattern
pl = pytree.LeafPattern(100, "foo", name="pl")
pn = pytree.NodePattern(1000, [pl], name="pn")
pw = pytree.WildcardPattern([[pn], [pl, pl]], name="pw")
r = {}
self.assertFalse(pw.match_seq([root], r))
self.assertEqual(r, {})
self.assertFalse(pw.match_seq([n1], r))
self.assertEqual(r, {})
self.assertTrue(pw.match_seq([n2], r))
# These are easier to debug
self.assertEqual(sorted(r.keys()), ["pl", "pn", "pw"])
self.assertEqual(r["pl"], l1)
self.assertEqual(r["pn"], n2)
self.assertEqual(r["pw"], [n2])
# But this is equivalent
self.assertEqual(r, {"pl": l1, "pn": n2, "pw": [n2]})
r = {}
self.assertTrue(pw.match_seq([l1, l3], r))
self.assertEqual(r, {"pl": l3, "pw": [l1, l3]})
self.assertTrue(r["pl"] is l3)
r = {}