# comment with ALERT

''' multiline
    comment
    ###
    '''

// alert check, no word delimiter check at start of word, bug 397719
#TODO

a = 100_000
b = 856_264.65
c = 0x420_F52

def func(x):
    """ EXTENDED API docs """
    if x == 42:
        func()
        c1 = {}
        c2 = {
            2.4,
            0x42,
            }
        a1 = []
        a2 = [
            "a", 032, (
                )]
    else:
        print("""multi
            line
            string""")
        print("single \
                continued line ")
        print('single line')
    if y := x:
        anext(a)
    return float(len(a2))


def test_f_literals():
    f'xy'
    f'x{bar}y'
    f'x{bar["baz"]}y'
    f'x{bar["baz"]}y\n'

    f'x{bar["baz"]!r}y\n'
    f'x{bar["baz"]:.2}y\n'

    f'{{x{bar["baz"]:.2}}}} }} {{ {x!a}'

a = "Escapes in String \U12345678 \xAB \""
a = u'''\'''
'''
a = u'''\''''
a = b'\u1234a\xffé\12k\n\g\
s\
\"\ '
a = rb'\u1234aé\n\g\
'
a = b""""""
a = b"""\""""
a = 'a' \
    u'\x12'
a = b"t\e's\t"
a = rb"t\e's\t"
a = r"\\" \
rb'\\' \
rf"""\\""" \
ur'''\\'''

"Escapes in Doc/Comment String \u1234 \xAb \"\\"
''' Doc/Comment String \N{123} \''''
""" Doc/Comment String \17 \x1f \n \" \\"""

# Decimal, Hex, Binary, Octal
a = 1_2_34L
b = 0_0_00_0
c = 0xA_3f_43D
d = 0b0_0_1_01
e = 0o71_2_34
# Float
d = 1.1E+3
e = 1.E+3
f = .1E+3
g = 1E+3
h = 1.1
i = 1.
j = .1
k =  1
l = 1_0.e+3_22 + .2_1e2 + 11_1.
# Complex
m = 1.1E+3j
n = 1.E+3j
o = .1E+3j
p = 1E+3j
q = 1.1j
r = 1.j
s = .1j
t =  1j
u = 1_0.e+3_22j + .2_1e2j + 11_1.j

# Invalid numbers
aaa.123
aaa123
.0x123

# match and case keywords
foo(
    # no keyword
    match if xx else yyy
)
match = 3
match.foo()
match command.split():
    case ["quit"]:
        print("Goodbye!")

match(command.split())
match(command.split()):
    case ["quit"]:
        print("Goodbye!")

def func1():
    yield 1
    yield  from [func(), 1, 2, "3"]
    # invalid, "from" no longer part of "yield from"
    yield, from 1

async def func2():
    await asyncio.sleep(1)

assert cond, \
    "bla bla"

"\\\\\\\\\\ENSURE THAT THIS AND THE FOLLOWING LINES ARE AT THE END OF THE FILE\\\\\\\\\\ \
"
a = 'otherwise the next line will be
stuck on the Error attribute'
br"Strings delimited by single quotes (' or ")
can NOT be defined across multiple lines
unless escaped with \
"