| 1 | ## oils_failures_allowed: 1
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| 2 |
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| 3 | # Test a[1]
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| 4 |
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| 5 | #### precedence of 1:3 vs comparison
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| 6 |
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| 7 | # This test exposed nondeterminism in CPython itself! Gah. Is this because of
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| 8 | # the hashing?
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| 9 | # Python xrange objects probably shouldn't even be comparable!
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| 10 | #
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| 11 | # = 1..3 < 1..4
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| 12 | # >>> xrange(1,3) < xrange(1,4)
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| 13 | # False
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| 14 | # >>> xrange(1,3) < xrange(1,4)
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| 15 | # True
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| 16 |
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| 17 | = 1..3
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| 18 |
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| 19 | ## STDOUT:
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| 20 | (Range) 1 .. 3
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| 21 | ## END
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| 22 |
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| 23 | #### precedence of 1:3 vs bitwise operator
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| 24 | = 3..3|4
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| 25 | ## STDOUT:
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| 26 | (Range) 3 .. 7
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| 27 | ## END
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| 28 |
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| 29 | #### subscript and slice :| 1 2 3 4 |
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| 30 | var myarray = :|1 2 3 4|
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| 31 | pp line (myarray[1])
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| 32 | pp line (myarray[1:3])
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| 33 |
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| 34 | echo 'implicit'
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| 35 | pp line (myarray[:2])
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| 36 | pp line (myarray[2:])
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| 37 |
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| 38 | echo 'out of bounds'
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| 39 | pp line (myarray[:5])
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| 40 | pp line (myarray[-5:])
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| 41 |
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| 42 | # Stride not supported
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| 43 | #= myarray[1:4:2]
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| 44 |
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| 45 | # Now try omitting some
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| 46 | #= myarray[1:4:2]
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| 47 | ## STDOUT:
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| 48 | (Str) "2"
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| 49 | (List) ["2","3"]
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| 50 | implicit
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| 51 | (List) ["1","2"]
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| 52 | (List) ["3","4"]
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| 53 | out of bounds
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| 54 | (List) ["1","2","3","4"]
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| 55 | (List) ["1","2","3","4"]
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| 56 | ## END
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| 57 |
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| 58 | #### slice subscripts are adjusted like Python
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| 59 |
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| 60 | show-py() {
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| 61 | python3 -c '
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| 62 | import json, sys; a = [1, 2, 3, 4, 5]; print(json.dumps(eval(sys.argv[1])))' $1
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| 63 | }
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| 64 |
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| 65 | show-ysh() {
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| 66 | eval "var a = [1, 2, 3, 4, 5]; json write ($1, space=0)"
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| 67 | }
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| 68 |
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| 69 | compare() {
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| 70 | local expr=$1
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| 71 | show-py "$1" | sed 's/ //g'
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| 72 | show-ysh "$1"
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| 73 | echo
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| 74 | }
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| 75 |
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| 76 | compare 'a[1:3]'
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| 77 | compare 'a[1:100]' # big number
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| 78 | compare 'a[100:1]' # inverted
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| 79 | compare 'a[1:-1]'
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| 80 | compare 'a[-3:-1]'
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| 81 | compare 'a[-100:-1]' # very negative
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| 82 | compare 'a[-1:-100]' # inverted
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| 83 | compare 'a[4:5]'
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| 84 |
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| 85 | ## STDOUT:
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| 86 | [2,3]
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| 87 | [2,3]
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| 88 |
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| 89 | [2,3,4,5]
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| 90 | [2,3,4,5]
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| 91 |
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| 92 | []
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| 93 | []
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| 94 |
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| 95 | [2,3,4]
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| 96 | [2,3,4]
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| 97 |
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| 98 | [3,4]
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| 99 | [3,4]
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| 100 |
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| 101 | [1,2,3,4]
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| 102 | [1,2,3,4]
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| 103 |
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| 104 | []
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| 105 | []
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| 106 |
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| 107 | [5]
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| 108 | [5]
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| 109 |
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| 110 | ## END
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| 111 |
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| 112 |
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| 113 | #### subscript and slice of List
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| 114 | var mylist = [1,2,3,4]
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| 115 | pp line (mylist[1])
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| 116 | pp line (mylist[1:3])
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| 117 |
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| 118 | echo 'implicit'
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| 119 | pp line (mylist[:2])
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| 120 | pp line (mylist[2:])
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| 121 | ## STDOUT:
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| 122 | (Int) 2
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| 123 | (List) [2,3]
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| 124 | implicit
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| 125 | (List) [1,2]
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| 126 | (List) [3,4]
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| 127 | ## END
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| 128 |
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| 129 | #### expressions and negative indices
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| 130 | var myarray = :|1 2 3 4 5|
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| 131 | pp line (myarray[-1])
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| 132 | pp line (myarray[-4:-2])
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| 133 |
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| 134 | echo 'implicit'
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| 135 | pp line (myarray[:-2])
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| 136 | pp line (myarray[-2:])
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| 137 | ## STDOUT:
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| 138 | (Str) "5"
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| 139 | (List) ["2","3"]
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| 140 | implicit
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| 141 | (List) ["1","2","3"]
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| 142 | (List) ["4","5"]
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| 143 | ## END
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| 144 |
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| 145 | #### Index with expression
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| 146 | var mydict = {['5']: 3}
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| 147 | var val = mydict["$[2+3]"]
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| 148 | echo $val
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| 149 | ## STDOUT:
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| 150 | 3
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| 151 | ## END
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| 152 |
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| 153 | #### Copy with a[:]
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| 154 | var a = [1,2,3]
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| 155 | var b = a[:]
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| 156 | pp line (b)
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| 157 | ## STDOUT:
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| 158 | (List) [1,2,3]
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| 159 | ## END
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| 160 |
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| 161 | #### Iterate over range
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| 162 | for i in (1..5) {
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| 163 | echo $[i]
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| 164 | }
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| 165 | for i, n in (1..4) {
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| 166 | echo "$[i], $[n]"
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| 167 | }
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| 168 | ## STDOUT:
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| 169 | 1
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| 170 | 2
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| 171 | 3
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| 172 | 4
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| 173 | 0, 1
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| 174 | 1, 2
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| 175 | 2, 3
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| 176 | ## END
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| 177 |
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| 178 | #### Loops over bogus ranges terminate
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| 179 | # Regression test for bug found during dev. Loops over backwards ranges should
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| 180 | # terminate immediately.
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| 181 | for i in (5..1) {
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| 182 | echo $[i]
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| 183 | }
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| 184 | ## STDOUT:
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| 185 | ## END
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| 186 |
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| 187 | #### Slices with Multiple Dimensions (for TSV8?)
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| 188 |
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| 189 | qtt pretty :mytable <<< '''
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| 190 | name age:Int
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| 191 | alice 42
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| 192 | bob 31
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| 193 | carol 20
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| 194 | '''
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| 195 |
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| 196 | # Cut off the first two rows
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| 197 | var t1 = mytable[2:, :]
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| 198 | = t1
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| 199 |
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| 200 | var t2 = mytable[:2, 3:4]
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| 201 | = t2
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| 202 |
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| 203 | var t3 = mytable[:2, %(name age)]
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| 204 | = t3
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| 205 |
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| 206 | ## STDOUT:
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| 207 | (Str) 'TODO: Table Slicing'
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| 208 | (Str) 'TODO: Table Slicing'
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| 209 | ## END
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