| 1 | ## compare_shells: bash mksh
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| 2 | ## oils_failures_allowed: 3
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| 3 |
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| 4 | #### nounset / set -u with empty array (bug in bash 4.3, fixed in 4.4)
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| 5 |
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| 6 | # http://lists.gnu.org/archive/html/help-bash/2017-09/msg00005.html
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| 7 |
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| 8 | set -o nounset
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| 9 | empty=()
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| 10 | argv.py "${empty[@]}"
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| 11 | echo status=$?
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| 12 | ## STDOUT:
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| 13 | []
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| 14 | status=0
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| 15 | ## END
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| 16 | ## BUG mksh stdout-json: ""
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| 17 | ## BUG mksh status: 1
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| 18 |
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| 19 | #### local array
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| 20 | # mksh support local variables, but not local arrays, oddly.
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| 21 | f() {
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| 22 | local a=(1 '2 3')
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| 23 | argv.py "${a[0]}"
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| 24 | }
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| 25 | f
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| 26 | ## stdout: ['1']
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| 27 | ## status: 0
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| 28 | ## BUG mksh status: 1
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| 29 | ## BUG mksh stdout-json: ""
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| 30 |
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| 31 | #### Command with with word splitting in array
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| 32 | array=('1 2' $(echo '3 4'))
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| 33 | argv.py "${array[@]}"
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| 34 | ## stdout: ['1 2', '3', '4']
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| 35 |
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| 36 | #### space before ( in array initialization
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| 37 | # NOTE: mksh accepts this, but bash doesn't
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| 38 | a= (1 '2 3')
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| 39 | echo $a
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| 40 | ## status: 2
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| 41 | ## OK mksh status: 0
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| 42 | ## OK mksh stdout: 1
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| 43 |
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| 44 | #### array over multiple lines
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| 45 | a=(
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| 46 | 1
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| 47 | '2 3'
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| 48 | )
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| 49 | argv.py "${a[@]}"
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| 50 | ## stdout: ['1', '2 3']
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| 51 | ## status: 0
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| 52 |
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| 53 | #### array with invalid token
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| 54 | a=(
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| 55 | 1
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| 56 | &
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| 57 | '2 3'
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| 58 | )
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| 59 | argv.py "${a[@]}"
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| 60 | ## status: 2
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| 61 | ## OK mksh status: 1
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| 62 |
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| 63 | #### array with empty string
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| 64 | empty=('')
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| 65 | argv.py "${empty[@]}"
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| 66 | ## stdout: ['']
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| 67 |
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| 68 | #### Retrieve index
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| 69 | a=(1 '2 3')
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| 70 | argv.py "${a[1]}"
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| 71 | ## stdout: ['2 3']
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| 72 |
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| 73 | #### Retrieve out of bounds index
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| 74 | a=(1 '2 3')
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| 75 | argv.py "${a[3]}"
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| 76 | ## stdout: ['']
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| 77 |
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| 78 | #### Negative index
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| 79 | a=(1 '2 3')
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| 80 | argv.py "${a[-1]}" "${a[-2]}" "${a[-5]}" # last one out of bounds
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| 81 | ## stdout: ['2 3', '1', '']
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| 82 | ## N-I mksh stdout: ['', '', '']
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| 83 |
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| 84 | #### Negative index and sparse array
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| 85 | a=(0 1 2 3 4)
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| 86 | unset a[1]
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| 87 | unset a[4]
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| 88 | echo "${a[@]}"
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| 89 | echo -1 ${a[-1]}
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| 90 | echo -2 ${a[-2]}
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| 91 | echo -3 ${a[-3]}
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| 92 | echo -4 ${a[-4]}
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| 93 | echo -5 ${a[-5]}
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| 94 |
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| 95 | a[-1]+=0 # append 0 on the end
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| 96 | echo ${a[@]}
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| 97 | (( a[-1] += 42 ))
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| 98 | echo ${a[@]}
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| 99 |
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| 100 | ## STDOUT:
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| 101 | 0 2 3
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| 102 | -1 3
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| 103 | -2 2
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| 104 | -3
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| 105 | -4 0
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| 106 | -5
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| 107 | 0 2 30
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| 108 | 0 2 72
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| 109 | ## END
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| 110 | ## BUG mksh STDOUT:
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| 111 | 0 2 3
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| 112 | -1
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| 113 | -2
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| 114 | -3
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| 115 | -4
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| 116 | -5
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| 117 | 0 2 3 0
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| 118 | 0 2 3 42
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| 119 | ## END
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| 120 |
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| 121 | #### Negative index and sparse array
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| 122 | a=(0 1)
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| 123 | unset 'a[-1]' # remove last element
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| 124 | a+=(2 3)
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| 125 | echo ${a[0]} $((a[0]))
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| 126 | echo ${a[1]} $((a[1]))
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| 127 | echo ${a[2]} $((a[2]))
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| 128 | echo ${a[3]} $((a[3]))
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| 129 | ## STDOUT:
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| 130 | 0 0
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| 131 | 2 2
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| 132 | 3 3
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| 133 | 0
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| 134 | ## END
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| 135 | ## BUG mksh STDOUT:
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| 136 | 0 0
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| 137 | 1 1
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| 138 | 2 2
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| 139 | 3 3
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| 140 | ## END
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| 141 |
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| 142 | #### Length after unset
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| 143 | a=(0 1 2 3)
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| 144 | unset a[-1]
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| 145 | echo len=${#a[@]}
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| 146 | unset a[-1]
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| 147 | echo len=${#a[@]}
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| 148 | ## STDOUT:
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| 149 | len=3
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| 150 | len=2
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| 151 | ## END
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| 152 | ## BUG mksh STDOUT:
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| 153 | len=4
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| 154 | len=4
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| 155 | ## END
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| 156 |
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| 157 | #### Retrieve index that is a variable
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| 158 | a=(1 '2 3')
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| 159 | i=1
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| 160 | argv.py "${a[$i]}"
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| 161 | ## stdout: ['2 3']
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| 162 |
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| 163 | #### Retrieve index that is a variable without $
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| 164 | a=(1 '2 3')
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| 165 | i=5
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| 166 | argv.py "${a[i-4]}"
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| 167 | ## stdout: ['2 3']
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| 168 |
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| 169 | #### Retrieve index that is a command sub
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| 170 | a=(1 '2 3')
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| 171 | argv.py "${a[$(echo 1)]}"
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| 172 | ## stdout: ['2 3']
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| 173 |
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| 174 | #### Retrieve array indices with ${!a}
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| 175 | a=(1 '2 3')
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| 176 | argv.py "${!a[@]}"
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| 177 | ## stdout: ['0', '1']
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| 178 |
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| 179 | #### Retrieve sparse array indices with ${!a}
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| 180 | a=()
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| 181 | (( a[99]=1 ))
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| 182 | argv.py "${!a[@]}"
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| 183 | ## STDOUT:
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| 184 | ['99']
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| 185 | ## END
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| 186 |
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| 187 | #### ${!a[1]} is named ref in bash
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| 188 | # mksh ignores it
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| 189 | foo=bar
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| 190 | a=('1 2' foo '2 3')
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| 191 | argv.py "${!a[1]}"
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| 192 | ## status: 0
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| 193 | ## stdout: ['bar']
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| 194 | ## N-I mksh stdout: ['a[1]']
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| 195 |
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| 196 | #### ${!a} on array
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| 197 |
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| 198 | # bash gives empty string because it's like a[0]
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| 199 | # mksh gives the name of the variable with !. Very weird.
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| 200 |
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| 201 | a=(1 '2 3')
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| 202 | argv.py "${!a}"
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| 203 |
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| 204 | ## stdout: ['']
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| 205 | ## status: 0
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| 206 | ## BUG mksh stdout: ['a']
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| 207 | ## BUG mksh status: 0
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| 208 |
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| 209 | #### All elements unquoted
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| 210 | a=(1 '2 3')
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| 211 | argv.py ${a[@]}
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| 212 | ## stdout: ['1', '2', '3']
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| 213 |
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| 214 | #### All elements quoted
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| 215 | a=(1 '2 3')
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| 216 | argv.py "${a[@]}"
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| 217 | ## stdout: ['1', '2 3']
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| 218 |
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| 219 | #### $*
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| 220 | a=(1 '2 3')
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| 221 | argv.py ${a[*]}
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| 222 | ## stdout: ['1', '2', '3']
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| 223 |
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| 224 | #### "$*"
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| 225 | a=(1 '2 3')
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| 226 | argv.py "${a[*]}"
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| 227 | ## stdout: ['1 2 3']
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| 228 |
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| 229 | #### Interpolate array into array
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| 230 | a=(1 '2 3')
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| 231 | a=(0 "${a[@]}" '4 5')
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| 232 | argv.py "${a[@]}"
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| 233 | ## stdout: ['0', '1', '2 3', '4 5']
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| 234 |
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| 235 | #### Exporting array doesn't do anything, not even first element
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| 236 | # bash parses, but doesn't execute.
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| 237 | # mksh gives syntax error -- parses differently with 'export'
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| 238 | # osh no longer parses this statically.
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| 239 |
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| 240 | export PYTHONPATH
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| 241 |
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| 242 | PYTHONPATH=mystr # NOTE: in bash, this doesn't work afterward!
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| 243 | printenv.py PYTHONPATH
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| 244 |
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| 245 | PYTHONPATH=(myarray)
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| 246 | printenv.py PYTHONPATH
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| 247 |
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| 248 | PYTHONPATH=(a b c)
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| 249 | printenv.py PYTHONPATH
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| 250 |
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| 251 | ## status: 0
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| 252 | ## STDOUT:
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| 253 | mystr
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| 254 | None
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| 255 | None
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| 256 | ## END
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| 257 |
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| 258 | #### strict_array prevents exporting array
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| 259 |
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| 260 | shopt -s strict_array
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| 261 |
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| 262 | export PYTHONPATH
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| 263 | PYTHONPATH=(a b c)
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| 264 | printenv.py PYTHONPATH
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| 265 |
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| 266 | ## status: 1
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| 267 | ## STDOUT:
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| 268 | ## END
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| 269 |
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| 270 | ## N-I bash/mksh status: 0
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| 271 | ## N-I bash/mksh STDOUT:
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| 272 | None
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| 273 | ## END
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| 274 |
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| 275 | #### Arrays can't be used as env bindings
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| 276 | # Hm bash it treats it as a string!
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| 277 | A=a B=(b b) printenv.py A B
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| 278 | ## status: 2
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| 279 | ## stdout-json: ""
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| 280 | ## OK bash stdout-json: "a\n(b b)\n"
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| 281 | ## OK bash status: 0
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| 282 | ## OK mksh status: 1
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| 283 |
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| 284 | #### Set element
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| 285 | a=(1 '2 3')
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| 286 | a[0]=9
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| 287 | argv.py "${a[@]}"
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| 288 | ## stdout: ['9', '2 3']
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| 289 |
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| 290 | #### Set element with var ref
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| 291 | a=(1 '2 3')
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| 292 | i=0
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| 293 | a[$i]=9
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| 294 | argv.py "${a[@]}"
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| 295 | ## stdout: ['9', '2 3']
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| 296 |
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| 297 | #### Set element with array ref
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| 298 | # This makes parsing a little more complex. Anything can be inside [],
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| 299 | # including other [].
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| 300 | a=(1 '2 3')
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| 301 | i=(0 1)
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| 302 | a[${i[1]}]=9
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| 303 | argv.py "${a[@]}"
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| 304 | ## stdout: ['1', '9']
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| 305 |
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| 306 | #### Set array item to array
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| 307 | a=(1 2)
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| 308 | a[0]=(3 4)
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| 309 | echo "status=$?"
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| 310 | ## stdout-json: ""
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| 311 | ## status: 2
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| 312 | ## N-I mksh status: 1
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| 313 | ## BUG bash stdout: status=1
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| 314 | ## BUG bash status: 0
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| 315 |
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| 316 | #### Slice of array with [@]
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| 317 | # mksh doesn't support this syntax! It's a bash extension.
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| 318 | a=(1 2 3)
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| 319 | argv.py "${a[@]:1:2}"
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| 320 | ## stdout: ['2', '3']
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| 321 | ## N-I mksh status: 1
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| 322 | ## N-I mksh stdout-json: ""
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| 323 |
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| 324 | #### Negative slice begin
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| 325 | # mksh doesn't support this syntax! It's a bash extension.
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| 326 | # NOTE: for some reason -2) has to be in parens? Ah that's because it
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| 327 | # conflicts with :-! That's silly. You can also add a space.
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| 328 | a=(1 2 3 4 5)
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| 329 | argv.py "${a[@]:(-4)}"
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| 330 | ## stdout: ['2', '3', '4', '5']
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| 331 | ## N-I mksh status: 1
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| 332 | ## N-I mksh stdout-json: ""
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| 333 |
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| 334 | #### Negative slice length
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| 335 | a=(1 2 3 4 5)
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| 336 | argv.py "${a[@]: 1: -3}"
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| 337 | ## status: 1
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| 338 | ## stdout-json: ""
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| 339 |
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| 340 | #### Slice with arithmetic
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| 341 | a=(1 2 3)
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| 342 | i=5
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| 343 | argv.py "${a[@]:i-4:2}"
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| 344 | ## stdout: ['2', '3']
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| 345 | ## N-I mksh status: 1
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| 346 | ## N-I mksh stdout-json: ""
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| 347 |
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| 348 | #### Number of elements
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| 349 | a=(1 '2 3')
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| 350 | echo "${#a[@]}" ${#a[@]} # bug fix: also test without quotes
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| 351 | ## stdout: 2 2
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| 352 |
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| 353 | #### Length of an element
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| 354 | a=(1 '2 3')
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| 355 | echo "${#a[1]}"
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| 356 | ## stdout: 3
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| 357 |
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| 358 | #### Iteration
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| 359 | a=(1 '2 3')
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| 360 | for v in "${a[@]}"; do
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| 361 | echo $v
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| 362 | done
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| 363 | ## stdout-json: "1\n2 3\n"
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| 364 |
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| 365 | #### glob within array yields separate elements
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| 366 | touch _tmp/y.Y _tmp/yy.Y
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| 367 | a=(_tmp/*.Y)
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| 368 | argv.py "${a[@]}"
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| 369 | ## stdout: ['_tmp/y.Y', '_tmp/yy.Y']
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| 370 |
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| 371 | #### declare array and then append
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| 372 | declare -a array
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| 373 | array+=(a)
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| 374 | array+=(b c)
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| 375 | argv.py "${array[@]}"
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| 376 | ## stdout: ['a', 'b', 'c']
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| 377 |
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| 378 | #### Array syntax in wrong place
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| 379 | ls foo=(1 2)
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| 380 | ## status: 1
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| 381 | ## OK bash status: 2
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| 382 |
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| 383 | #### Single array with :-
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| 384 |
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| 385 | # 2024-06 - bash 5.2 and mksh now match, bash 4.4 differed.
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| 386 | # Could change OSH
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| 387 | # zsh agrees with OSH, but it fails most test cases
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| 388 |
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| 389 | single=('')
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| 390 | argv.py ${single[@]:-none} x "${single[@]:-none}"
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| 391 | ## stdout: ['none', 'x', 'none']
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| 392 |
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| 393 | #### Stripping a whole array unquoted
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| 394 | # Problem: it joins it first.
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| 395 | files=('foo.c' 'sp ace.h' 'bar.c')
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| 396 | argv.py ${files[@]%.c}
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| 397 | ## status: 0
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| 398 | ## stdout: ['foo', 'sp', 'ace.h', 'bar']
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| 399 | ## N-I mksh status: 1
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| 400 | ## N-I mksh stdout-json: ""
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| 401 |
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| 402 | #### Stripping a whole array quoted
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| 403 | files=('foo.c' 'sp ace.h' 'bar.c')
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| 404 | argv.py "${files[@]%.c}"
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| 405 | ## status: 0
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| 406 | ## stdout: ['foo', 'sp ace.h', 'bar']
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| 407 | ## N-I mksh status: 1
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| 408 | ## N-I mksh stdout-json: ""
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| 409 |
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| 410 | #### Multiple subscripts not allowed
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| 411 | # NOTE: bash 4.3 had a bug where it ignored the bad subscript, but now it is
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| 412 | # fixed.
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| 413 | a=('123' '456')
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| 414 | argv.py "${a[0]}" "${a[0][0]}"
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| 415 | ## stdout-json: ""
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| 416 | ## status: 2
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| 417 | ## OK bash/mksh status: 1
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| 418 |
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| 419 | #### Length op, index op, then transform op is not allowed
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| 420 | a=('123' '456')
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| 421 | echo "${#a[0]}" "${#a[0]/1/xxx}"
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| 422 | ## stdout-json: ""
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| 423 | ## status: 2
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| 424 | ## OK bash/mksh status: 1
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| 425 |
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| 426 | #### ${mystr[@]} and ${mystr[*]} are no-ops
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| 427 | s='abc'
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| 428 | echo ${s[@]}
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| 429 | echo ${s[*]}
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| 430 | ## STDOUT:
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| 431 | abc
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| 432 | abc
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| 433 | ## END
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| 434 |
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| 435 | #### ${mystr[@]} and ${mystr[*]} disallowed with strict_array
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| 436 |
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| 437 | $SH -c 'shopt -s strict_array; s="abc"; echo ${s[@]}'
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| 438 | echo status=$?
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| 439 |
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| 440 | $SH -c 'shopt -s strict_array; s="abc"; echo ${s[*]}'
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| 441 | echo status=$?
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| 442 |
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| 443 | ## status: 0
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| 444 | ## STDOUT:
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| 445 | status=1
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| 446 | status=1
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| 447 | ## END
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| 448 | ## N-I bash/mksh STDOUT:
|
| 449 | abc
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| 450 | status=0
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| 451 | abc
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| 452 | status=0
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| 453 | ## END
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| 454 |
|
| 455 | #### Create a "user" array out of the argv array
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| 456 | set -- 'a b' 'c'
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| 457 | array1=('x y' 'z')
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| 458 | array2=("$@")
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| 459 | argv.py "${array1[@]}" "${array2[@]}"
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| 460 | ## stdout: ['x y', 'z', 'a b', 'c']
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| 461 |
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| 462 | #### Tilde expansion within array
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| 463 | HOME=/home/bob
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| 464 | a=(~/src ~/git)
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| 465 | echo "${a[@]}"
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| 466 | ## stdout: /home/bob/src /home/bob/git
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| 467 |
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| 468 | #### Brace Expansion within Array
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| 469 | a=(-{a,b} {c,d}-)
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| 470 | echo "${a[@]}"
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| 471 | ## stdout: -a -b c- d-
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| 472 |
|
| 473 | #### array default
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| 474 | default=('1 2' '3')
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| 475 | argv.py "${undef[@]:-${default[@]}}"
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| 476 | ## stdout: ['1 2', '3']
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| 477 |
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| 478 | #### Singleton Array Copy and Assign. OSH can't index strings with ints
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| 479 | a=( '12 3' )
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| 480 | b=( "${a[@]}" )
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| 481 | c="${a[@]}" # This decays it to a string
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| 482 | d=${a[*]} # This decays it to a string
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| 483 | echo ${#a[0]} ${#b[0]}
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| 484 | echo ${#a[@]} ${#b[@]}
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| 485 |
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| 486 | # osh is intentionally stricter, and these fail.
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| 487 | echo ${#c[0]} ${#d[0]}
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| 488 | echo ${#c[@]} ${#d[@]}
|
| 489 |
|
| 490 | ## status: 1
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| 491 | ## STDOUT:
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| 492 | 4 4
|
| 493 | 1 1
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| 494 | ## END
|
| 495 | ## OK bash/mksh status: 0
|
| 496 | ## OK bash/mksh STDOUT:
|
| 497 | 4 4
|
| 498 | 1 1
|
| 499 | 4 4
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| 500 | 1 1
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| 501 | ## END
|
| 502 |
|
| 503 | #### declare -a / local -a is empty array
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| 504 | declare -a myarray
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| 505 | argv.py "${myarray[@]}"
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| 506 | myarray+=('x')
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| 507 | argv.py "${myarray[@]}"
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| 508 |
|
| 509 | f() {
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| 510 | local -a myarray
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| 511 | argv.py "${myarray[@]}"
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| 512 | myarray+=('x')
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| 513 | argv.py "${myarray[@]}"
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| 514 | }
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| 515 | f
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| 516 | ## STDOUT:
|
| 517 | []
|
| 518 | ['x']
|
| 519 | []
|
| 520 | ['x']
|
| 521 | ## END
|
| 522 |
|
| 523 | #### Create sparse array
|
| 524 | a=()
|
| 525 | (( a[99]=1 )) # osh doesn't parse index assignment outside arithmetic yet
|
| 526 | echo len=${#a[@]}
|
| 527 | argv.py "${a[@]}"
|
| 528 | echo "unset=${a[33]}"
|
| 529 | echo len-of-unset=${#a[33]}
|
| 530 | ## STDOUT:
|
| 531 | len=1
|
| 532 | ['1']
|
| 533 | unset=
|
| 534 | len-of-unset=0
|
| 535 | ## END
|
| 536 |
|
| 537 | #### Create sparse array implicitly
|
| 538 | (( a[99]=1 ))
|
| 539 | echo len=${#a[@]}
|
| 540 | argv.py "${a[@]}"
|
| 541 | echo "unset=${a[33]}"
|
| 542 | echo len-of-unset=${#a[33]}
|
| 543 | ## STDOUT:
|
| 544 | len=1
|
| 545 | ['1']
|
| 546 | unset=
|
| 547 | len-of-unset=0
|
| 548 | ## END
|
| 549 |
|
| 550 | #### Append sparse arrays
|
| 551 | a=()
|
| 552 | (( a[99]=1 ))
|
| 553 | b=()
|
| 554 | (( b[33]=2 ))
|
| 555 | (( b[66]=3 ))
|
| 556 | a+=( "${b[@]}" )
|
| 557 | argv.py "${a[@]}"
|
| 558 | argv.py "${a[99]}" "${a[100]}" "${a[101]}"
|
| 559 | ## STDOUT:
|
| 560 | ['1', '2', '3']
|
| 561 | ['1', '2', '3']
|
| 562 | ## END
|
| 563 |
|
| 564 | #### Slice of sparse array with [@]
|
| 565 | # mksh doesn't support this syntax! It's a bash extension.
|
| 566 | (( a[33]=1 ))
|
| 567 | (( a[66]=2 ))
|
| 568 | (( a[99]=2 ))
|
| 569 | argv.py "${a[@]:15:2}"
|
| 570 | ## stdout: ['1', '2']
|
| 571 | ## N-I mksh status: 1
|
| 572 | ## N-I mksh stdout-json: ""
|
| 573 |
|
| 574 | #### Using an array itself as the index on LHS
|
| 575 | shopt -u strict_arith
|
| 576 | a[a]=42
|
| 577 | a[a]=99
|
| 578 | argv.py "${a[@]}" "${a[0]}" "${a[42]}" "${a[99]}"
|
| 579 |
|
| 580 | ## status: 0
|
| 581 | ## STDOUT:
|
| 582 | ['42', '99', '42', '99', '']
|
| 583 | ## END
|
| 584 |
|
| 585 | #### Using an array itself as the index on RHS
|
| 586 | shopt -u strict_arith
|
| 587 | a=(1 2 3)
|
| 588 | (( x = a[a] ))
|
| 589 | echo $x
|
| 590 | ## status: 0
|
| 591 | ## STDOUT:
|
| 592 | 2
|
| 593 | ## END
|
| 594 |
|
| 595 | #### a[$x$y] on LHS and RHS
|
| 596 | x=1
|
| 597 | y=2
|
| 598 | a[$x$y]=foo
|
| 599 |
|
| 600 | # not allowed by OSH parsing
|
| 601 | #echo ${a[$x$y]}
|
| 602 |
|
| 603 | echo ${a[12]}
|
| 604 | echo ${#a[@]}
|
| 605 |
|
| 606 | ## STDOUT:
|
| 607 | foo
|
| 608 | 1
|
| 609 | ## END
|
| 610 |
|
| 611 |
|
| 612 | #### Dynamic parsing of LHS a[$code]=value
|
| 613 |
|
| 614 | declare -a array
|
| 615 | array[x=1]='one'
|
| 616 |
|
| 617 | code='y=2'
|
| 618 | #code='1+2' # doesn't work either
|
| 619 | array[$code]='two'
|
| 620 |
|
| 621 | argv.py "${array[@]}"
|
| 622 | echo x=$x
|
| 623 | echo y=$y
|
| 624 |
|
| 625 | ## STDOUT:
|
| 626 | ['one', 'two']
|
| 627 | x=1
|
| 628 | y=2
|
| 629 | ## END
|
| 630 | ## N-I dash stdout-json: ""
|
| 631 | ## N-I dash status: 2
|
| 632 |
|
| 633 | #### Dynamic parsing of RHS ${a[$code]}
|
| 634 | declare -a array
|
| 635 | array=(zero one two three)
|
| 636 |
|
| 637 | echo ${array[1+2]}
|
| 638 |
|
| 639 | code='1+2'
|
| 640 | echo ${array[$code]}
|
| 641 |
|
| 642 | ## STDOUT:
|
| 643 | three
|
| 644 | three
|
| 645 | ## END
|
| 646 |
|
| 647 | # it still dynamically parses
|
| 648 |
|
| 649 | ## OK zsh STDOUT:
|
| 650 | two
|
| 651 | two
|
| 652 | ## END
|
| 653 |
|
| 654 |
|
| 655 | #### Is element set? test -v a[i]
|
| 656 |
|
| 657 | # note: modern versions of zsh implement this
|
| 658 |
|
| 659 | array=(1 2 3 '')
|
| 660 |
|
| 661 | test -v 'array[1]'
|
| 662 | echo set=$?
|
| 663 |
|
| 664 | test -v 'array[3]'
|
| 665 | echo empty=$?
|
| 666 |
|
| 667 | test -v 'array[4]'
|
| 668 | echo unset=$?
|
| 669 |
|
| 670 | ## STDOUT:
|
| 671 | set=0
|
| 672 | empty=0
|
| 673 | unset=1
|
| 674 | ## END
|
| 675 |
|
| 676 | ## N-I mksh STDOUT:
|
| 677 | set=2
|
| 678 | empty=2
|
| 679 | unset=2
|
| 680 | ## END
|
| 681 |
|
| 682 |
|
| 683 | #### [[ -v a[i] ]]
|
| 684 |
|
| 685 | # note: modern versions of zsh implement this
|
| 686 |
|
| 687 | array=(1 2 3)
|
| 688 | [[ -v array[1] ]]
|
| 689 | echo status=$?
|
| 690 |
|
| 691 | [[ -v array[4] ]]
|
| 692 | echo status=$?
|
| 693 |
|
| 694 | ## STDOUT:
|
| 695 | status=0
|
| 696 | status=1
|
| 697 | ## END
|
| 698 |
|
| 699 | ## N-I mksh status: 1
|
| 700 | ## N-I mksh STDOUT:
|
| 701 | ## END
|
| 702 |
|
| 703 |
|
| 704 | #### test -v a[i] with arith expressions
|
| 705 |
|
| 706 | array=(1 2 3 '')
|
| 707 |
|
| 708 | test -v 'array[1+1]'
|
| 709 | echo status=$?
|
| 710 |
|
| 711 | test -v 'array[4+1]'
|
| 712 | echo status=$?
|
| 713 |
|
| 714 | echo
|
| 715 | echo dbracket
|
| 716 |
|
| 717 | [[ -v array[1+1] ]]
|
| 718 | echo status=$?
|
| 719 |
|
| 720 | [[ -v array[4+1] ]]
|
| 721 | echo status=$?
|
| 722 |
|
| 723 | ## STDOUT:
|
| 724 | status=0
|
| 725 | status=1
|
| 726 |
|
| 727 | dbracket
|
| 728 | status=0
|
| 729 | status=1
|
| 730 | ## END
|
| 731 |
|
| 732 | ## N-I mksh status: 1
|
| 733 | ## N-I mksh STDOUT:
|
| 734 | status=2
|
| 735 | status=2
|
| 736 |
|
| 737 | dbracket
|
| 738 | ## END
|
| 739 |
|
| 740 |
|
| 741 | #### More arith expressions in [[ -v array[expr]] ]]
|
| 742 |
|
| 743 | typeset -a array
|
| 744 | array=('' nonempty)
|
| 745 |
|
| 746 | # This feels inconsistent with the rest of bash?
|
| 747 | zero=0
|
| 748 |
|
| 749 | [[ -v array[zero+0] ]]
|
| 750 | echo zero=$?
|
| 751 |
|
| 752 | [[ -v array[zero+1] ]]
|
| 753 | echo one=$?
|
| 754 |
|
| 755 | [[ -v array[zero+2] ]]
|
| 756 | echo two=$?
|
| 757 |
|
| 758 | echo ---
|
| 759 |
|
| 760 | i='0+0'
|
| 761 | [[ -v array[i] ]]
|
| 762 | echo zero=$?
|
| 763 |
|
| 764 | i='0+1'
|
| 765 | [[ -v array[i] ]]
|
| 766 | echo one=$?
|
| 767 |
|
| 768 | i='0+2'
|
| 769 | [[ -v array[i] ]]
|
| 770 | echo two=$?
|
| 771 |
|
| 772 | echo ---
|
| 773 |
|
| 774 | i='0+0'
|
| 775 | [[ -v array[$i] ]]
|
| 776 | echo zero=$?
|
| 777 |
|
| 778 | i='0+1'
|
| 779 | [[ -v array[$i] ]]
|
| 780 | echo one=$?
|
| 781 |
|
| 782 | i='0+2'
|
| 783 | [[ -v array[$i] ]]
|
| 784 | echo two=$?
|
| 785 |
|
| 786 |
|
| 787 | ## STDOUT:
|
| 788 | zero=0
|
| 789 | one=0
|
| 790 | two=1
|
| 791 | ---
|
| 792 | zero=0
|
| 793 | one=0
|
| 794 | two=1
|
| 795 | ---
|
| 796 | zero=0
|
| 797 | one=0
|
| 798 | two=1
|
| 799 | ## END
|
| 800 |
|
| 801 | ## N-I mksh status: 1
|
| 802 | ## N-I mksh STDOUT:
|
| 803 | ## END
|