# setup
sep = ","
no_sep = None

# positives
"""
	itemA
	itemB
	itemC
""".split()

"a,b,c,d".split(",")
"a,b,c,d".split(None)
"a,b,c,d".split(",", 1)
"a,b,c,d".split(None, 1)
"a,b,c,d".split(sep=",")
"a,b,c,d".split(sep=None)
"a,b,c,d".split(sep=",", maxsplit=1)
"a,b,c,d".split(sep=None, maxsplit=1)
"a,b,c,d".split(maxsplit=1, sep=",")
"a,b,c,d".split(maxsplit=1, sep=None)
"a,b,c,d".split(",", maxsplit=1)
"a,b,c,d".split(None, maxsplit=1)
"a,b,c,d".split(maxsplit=1)
"a,b,c,d".split(maxsplit=1.0)
"a,b,c,d".split(maxsplit=1)
"a,b,c,d".split(maxsplit=0)
"VERB AUX PRON ADP DET".split(" ")
'   1   2   3   '.split()
'1<>2<>3<4'.split('<>')

" a*a a*a a ".split("*", -1)  # [' a', 'a a', 'a a ']
"".split()  # []
""" 	
""".split()  # []
"   	".split()  # []
"/abc/".split() # ['/abc/']
("a,b,c"
# comment
.split()
)  # ['a,b,c']
("a,b,c"
# comment1
.split(",")
) # ['a', 'b', 'c']
("a,"
# comment
"b,"
"c"
.split(",")
) # ['a', 'b', 'c']

"hello "\
	"world".split()
# ['hello', 'world']

# prefixes and isc
u"a b".split()  # ['a', 'b']
r"a \n b".split()  # ['a', '\\n', 'b']
("a " "b").split()  # ['a', 'b']
"a " "b".split()  # ['a', 'b']
u"a " "b".split()  # ['a', 'b']
"a " u"b".split()  # ['a', 'b']
u"a " r"\n".split()  # ['a', '\\n']
r"\n " u"\n".split()  # ['\\n']
r"\n " "\n".split()  # ['\\n']
"a " r"\n".split()  # ['a', '\\n']

"a,b,c".split(',', maxsplit=0) # ['a,b,c']
"a,b,c".split(',', maxsplit=-1)  # ['a', 'b', 'c']
"a,b,c".split(',', maxsplit=-2)  # ['a', 'b', 'c']
"a,b,c".split(',', maxsplit=-0)  # ['a,b,c']

# negatives

# invalid values should not cause panic 
"a,b,c,d".split(maxsplit="hello")
"a,b,c,d".split(maxsplit=-"hello")

# variable names not implemented
"a,b,c,d".split(sep)
"a,b,c,d".split(no_sep)
for n in range(3):
	"a,b,c,d".split(",", maxsplit=n)

# f-strings not yet implemented
world = "world"
_ = f"{world}_hello_world".split("_")

hello = "hello_world"
_ = f"{hello}_world".split("_")

# split on bytes not yet implemented, much less frequent
b"TesT.WwW.ExamplE.CoM".split(b".")

# str.splitlines not yet implemented
"hello\nworld".splitlines()
"hello\nworld".splitlines(keepends=True)
"hello\nworld".splitlines(keepends=False)