本文整理汇总了Python中pypeg2.compose函数的典型用法代码示例。如果您正苦于以下问题：Python compose函数的具体用法？Python compose怎么用？Python compose使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了compose函数的15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: compose
def compose(self, p, **x):
"""Produce the equivalent simple language as matched.
Might have different whitespace and be otherwise formatted
in a normalized fashion.
"""
return "{0} = {1}".format(compose(self[0]), compose(self[1]))示例2: test_expression
def test_expression(string):
expression = expressions.parse(string)
switched = expression.accept(Switcher())
assert_equal(compose(expression)
.replace('and', '%OLDAND%')
.replace('or', 'and')
.replace('%OLDAND%', 'or'),
compose(switched))示例3: test_if_tx1yx2y
def test_if_tx1yx2y(self):
"""Test parsing if statement if (x > y) {...} else {...}."""
expected = "if (x > y)\n"
expected += "{\n"
expected += " x = 1;\n"
expected += " y = x * 3;\n"
expected += "}\n"
expected += "else\n"
expected += "{\n"
expected += " x = 2;\n"
expected += " y = 3 * x;\n"
expected += "}"
ast = parse(expected, p.If)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual(expected, c)
self.assertEqual(
If(
GreaterThan(Variable('x'), Variable('y')),
Sequence(
Assign('x', Number(1)),
Assign('y', Multiply(Variable('x'), Number(3)))),
Sequence(
Assign('x', Number(2)),
Assign('y', Multiply(Number(3), Variable('x'))))),
e)示例4: test_not_x
def test_not_x(self):
"""Test parsing logical negation expression !x."""
ast = parse("!x", p.Expression)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual("!x", c)
self.assertEqual(Not(Variable('x')), e)示例5: test_multiplication_15x
def test_multiplication_15x(self):
"""Test parsing multiplication expression 1.5 * x."""
ast = parse("1.5 * x", p.Expression)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual("1.5 * x", c)
self.assertEqual(Multiply(Number(1.5), Variable('x')), e)示例6: test_division_xy
def test_division_xy(self):
"""Test parsing division expression x / y."""
ast = parse("x / y", p.Expression)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual("x / y", c)
self.assertEqual(Divide(Variable('x'), Variable('y')), e)示例7: test_or_nxy
def test_or_nxy(self):
"""Test parsing logical or expression !x || y."""
ast = parse("!x || y", p.Expression)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual("!x || y", c)
self.assertEqual(Or(Not(Variable('x')), Variable('y')), e)示例8: test_assign_nxt
def test_assign_nxt(self):
"""Test parsing assignment statement."""
ast = parse("x = !true;", p.Assign)
c = compose(ast, indent=" ", autoblank=False)
s = ast.to_simple()
self.assertEqual("x = !true;", c)
self.assertEqual(Assign('x', Not(Boolean(True))), s)示例9: test_lessthan_2m1m
def test_lessthan_2m1m(self):
"""Test parsing less than expression -2 - -1."""
ast = parse("-2 < -1", p.Expression)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual("-2 < -1", c)
self.assertEqual(LessThan(Number(-2), Number(-1)), e)示例10: test_or_xf
def test_or_xf(self):
"""Test parsing logical or expression x || false."""
ast = parse("x || false", p.Expression)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual("x || false", c)
self.assertEqual(Or(Variable('x'), Boolean(False)), e)示例11: test_subtraction_xy
def test_subtraction_xy(self):
"""Test parsing subtraction expression x - y."""
ast = parse("x - y", p.Expression)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual("x - y", c)
self.assertEqual(Subtract(Variable('x'), Variable('y')), e)示例12: test_greaterthan_x25
def test_greaterthan_x25(self):
"""Test parsing greater than expression x > 2.5."""
ast = parse("x > 2.5", p.Expression)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual("x > 2.5", c)
self.assertEqual(GreaterThan(Variable('x'), Number(2.5)), e)示例13: test_subtraction_15x
def test_subtraction_15x(self):
"""Test parsing subtraction expression 1.5 - x."""
ast = parse("1.5 - x", p.Expression)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual("1.5 - x", c)
self.assertEqual(Subtract(Number(1.5), Variable('x')), e)示例14: test_subtraction_2m1m
def test_subtraction_2m1m(self):
"""Test parsing subtraction expression -2 - -1."""
ast = parse("-2 - -1", p.Expression)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual("-2 - -1", c)
self.assertEqual(Subtract(Number(-2), Number(-1)), e)示例15: test_multiplication_xy
def test_multiplication_xy(self):
"""Test parsing multiplication expression x * y."""
ast = parse("x * y", p.Expression)
c = compose(ast, indent=" ", autoblank=False)
e = ast.to_simple()
self.assertEqual("x * y", c)
self.assertEqual(Multiply(Variable('x'), Variable('y')), e)