1	# Test a[1]
2
3	#### precedence of 1:3 vs comparison
4
5	# This test exposed nondeterminism in CPython itself! Gah. Is this because of
6	# the hashing?
7	# Python xrange objects probably shouldn't even be comparable!
8	#
9	# = 1:3 < 1:4
10	# >>> xrange(1,3) < xrange(1,4)
11	# False
12	# >>> xrange(1,3) < xrange(1,4)
13	# True
14
15	= 1:3
16
17	## STDOUT:
18	(xrange) xrange(1, 3)
19	## END
20
21	#### precedence of 1:3 vs bitwise operator
22	= 3:3|4
23	## STDOUT:
24	(xrange) xrange(3, 7)
25	## END
26
27	#### subscript and slice :| 1 2 3 4 |
28	var myarray = :|1 2 3 4|
29	= myarray[1]
30	= myarray[1:3]
31
32	echo 'implicit'
33	= myarray[:2]
34	= myarray[2:]
35
36	echo 'out of bounds'
37	= myarray[:5]
38	= myarray[-5:]
39
40	# Stride not supported
41	#= myarray[1:4:2]
42
43	# Now try omitting smoe
44	#= myarray[1:4:2]
45	## STDOUT:
46	(Str) '2'
47	(List) ['2', '3']
48	implicit
49	(List) ['1', '2']
50	(List) ['3', '4']
51	out of bounds
52	(List) ['1', '2', '3', '4']
53	(List) ['1', '2', '3', '4']
54	## END
55
56	#### subscript and slice of List
57	var mylist = [1,2,3,4]
58	= mylist[1]
59	= mylist[1:3]
60
61	echo 'implicit'
62	= mylist[:2]
63	= mylist[2:]
64	## STDOUT:
65	(Int) 2
66	(List) [2, 3]
67	implicit
68	(List) [1, 2]
69	(List) [3, 4]
70	## END
71
72	#### expressions and negative indices
73	var myarray = %(1 2 3 4 5)
74	= myarray[-1]
75	= myarray[-4:-2]
76
77	echo 'implicit'
78	= myarray[:-2]
79	= myarray[-2:]
80	## STDOUT:
81	(Str) '5'
82	(List) ['2', '3']
83	implicit
84	(List) ['1', '2', '3']
85	(List) ['4', '5']
86	## END
87
88	#### Index with expression
89	var mydict = {['5']: 3}
90	var val = mydict["$[2+3]"]
91	echo $val
92	## STDOUT:
93	3
94	## END
95
96	#### Copy wtih a[:]
97	var a = [1,2,3]
98	var b = a[:]
99	= b
100	## STDOUT:
101	(List) [1, 2, 3]
102	## END
103
104	#### Slices with Multiple Dimensions (for QTT)
105
106	qtt pretty :mytable <<< '''
107	name age:Int
108	alice 42
109	bob 31
110	carol 20
111	'''
112
113	# Cut off the first two rows
114	var t1 = mytable[2:, :]
115	= t1
116
117	var t2 = mytable[:2, 3:4]
118	= t2
119
120	var t3 = mytable[:2, %(name age)]
121	= t3
122
123	## STDOUT:
124	(Str) 'TODO: Table Slicing'
125	(Str) 'TODO: Table Slicing'
126	## END
127
128	#### Index a list with a range, not a slice. TODO: Figure out semantics
129	shopt -s oil:all
130	var mylist = [1,2,3,4,5]
131	var r = 1:3
132	var myslice = mylist[r]
133	## status: 3
134	## STDOUT:
135	TODO
136	## END
137
138	#### List(0:3) should copy the list?
139	shopt -s oil:all
140	var mylist = List(0:3)
141	write @mylist
142	## STDOUT:
143	0
144	1
145	2
146	## END