1	# Test a[1]
2
3	#### ranges have higher precedence than comparison (disabled)
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	#### ranges have lower precedence than bitwise operators
22	= 3:3|4
23	## STDOUT:
24	(xrange) xrange(3, 7)
25	## END
26
27	#### subscript and range of array
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	# Stride not supported
37	#= myarray[1:4:2]
38
39	# Now try omitting smoe
40	#= myarray[1:4:2]
41	## STDOUT:
42	(Str) '2'
43	(List) ['2', '3']
44	implicit
45	(List) ['1', '2']
46	(List) ['3', '4']
47	## END
48
49	#### subscript and range of list
50	var mylist = [1,2,3,4]
51	= mylist[1]
52	= mylist[1:3]
53
54	echo 'implicit'
55	= mylist[:2]
56	= mylist[2:]
57	## STDOUT:
58	(Int) 2
59	(List) [2, 3]
60	implicit
61	(List) [1, 2]
62	(List) [3, 4]
63	## END
64
65	#### expressions and negative indices
66	var myarray = @(1 2 3 4 5)
67	= myarray[-1]
68	= myarray[-4:-2]
69
70	echo 'implicit'
71	= myarray[:-2]
72	= myarray[-2:]
73	## STDOUT:
74	(Str) '5'
75	(List) ['2', '3']
76	implicit
77	(List) ['1', '2', '3']
78	(List) ['4', '5']
79	## END
80
81	#### Range loop
82	for (i in 1:3) {
83	echo "i = $i"
84	}
85	var lower = -3
86	var upper = 2
87	for (i in lower:upper) {
88	echo $i
89	}
90	## STDOUT:
91	i = 1
92	i = 2
93	-3
94	-2
95	-1
96	0
97	1
98	## END
99
100	#### Explicit range with step
101	for (i in range(1, 7, 2)) {
102	echo $i
103	}
104	## STDOUT:
105	1
106	3
107	5
108	## END
109
110	#### Explicit slice with step
111	shopt -s oil:all
112	var mylist = [0,1,2,3,4,5,6,7,8]
113	var x = mylist[slice(1, 7, 2)]
114	write @x
115	## STDOUT:
116	1
117	3
118	5
119	## END
120
121	#### Index with a Tuple
122	var mydict = @{[2,3]: 'foo'}
123	var val = mydict[(2, 3)]
124	echo $val
125	# TODO: This should work!
126	setvar val = mydict[2, 3]
127	echo $val
128	## STDOUT:
129	foo
130	foo
131	## END
132
133	#### Index with expression
134	var mydict = @{[5]: 3}
135	var val = mydict[2+3]
136	echo $val
137	## STDOUT:
138	3
139	## END
140
141	#### Copy wtih a[:]
142	var a = [1,2,3]
143	var b = a[:]
144	= b
145	## STDOUT:
146	(List) [1, 2, 3]
147	## END
148
149	#### Slices with Multiple Dimensions (with Table/data frame)
150
151	# This parses, but it isn't hashable. We need a type with operator overloading
152	# to handle this, which we don't have.
153	#
154	# Data frames could be:
155	#
156	# df[3:5, :] rows 3 to 5, all cols
157	#
158	# df[3:5, @(name age)] rows 3 to 5, two cols
159
160	#var b = d[3,1:]
161
162	# TODO: We don't have col=value syntax
163	var t = Table()
164
165	# Cut off the first two rows
166	var t1 = t[2:, :]
167	= t1
168
169	var t2 = t[:2, 3:4]
170	= t2
171
172	## STDOUT:
173	(Str) 'TODO: Table Slicing'
174	(Str) 'TODO: Table Slicing'
175	## END
176
177	#### Slice with Range
178	shopt -s oil:all
179	var mylist = [1,2,3,4,5]
180	var r = 1:3
181	var myslice = mylist[r]
182	write @myslice
183	## STDOUT:
184	a
185	## END
186
187	#### Range with list constructor
188	shopt -s oil:all
189	var mylist = List(0:3)
190	write @mylist
191	## STDOUT:
192	0
193	1
194	2
195	## END