| 1 | ## compare_shells: bash-4.4
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| 2 | ## oils_failures_allowed: 1
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| 3 |
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| 4 | # Var refs are done with ${!a}
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| 5 | #
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| 6 | # local/declare -n is tested in spec/named-ref.test.sh.
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| 7 | #
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| 8 | # http://stackoverflow.com/questions/16461656/bash-how-to-pass-array-as-an-argument-to-a-function
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| 9 |
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| 10 | #### var ref ${!a}
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| 11 | a=b
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| 12 | b=c
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| 13 | echo ref ${!a} ${a}
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| 14 | ## stdout: ref c b
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| 15 |
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| 16 | #### ${!ref-default}
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| 17 | ref=x
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| 18 | echo x=${!ref-default}
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| 19 |
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| 20 | x=''
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| 21 | echo x=${!ref-default}
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| 22 |
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| 23 | x=foo
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| 24 | echo x=${!ref-default}
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| 25 |
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| 26 | ## STDOUT:
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| 27 | x=default
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| 28 | x=
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| 29 | x=foo
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| 30 | ## END
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| 31 |
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| 32 | #### ${!undef:-}
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| 33 | # bash gives empty string, but I feel like this could be an error
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| 34 | echo undef=${!undef-'default'}
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| 35 | echo undef=${!undef}
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| 36 |
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| 37 | set -u
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| 38 | echo NOUNSET
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| 39 | echo undef=${!undef-'default'}
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| 40 | echo undef=${!undef}
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| 41 |
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| 42 | ## status: 1
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| 43 | ## STDOUT:
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| 44 | undef=default
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| 45 | undef=
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| 46 | NOUNSET
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| 47 | undef=default
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| 48 | ## END
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| 49 |
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| 50 | #### comparison to ${!array[@]} keys (similar SYNTAX)
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| 51 |
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| 52 | declare -a a=(x y)
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| 53 | argv.py "${!a[@]}"
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| 54 | echo a_keys=$?
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| 55 |
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| 56 | argv.py "${!a}" # missing [] is equivalent to ${!a[0]} ?
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| 57 | echo a_nobrackets=$?
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| 58 |
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| 59 | echo ---
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| 60 | declare -A A=([A]=a [B]=b)
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| 61 |
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| 62 | argv.py ${!A[@]}
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| 63 | echo A_keys=$?
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| 64 |
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| 65 | argv.py "${!A}" # missing [] is equivalent to ${!A[0]} ?
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| 66 | echo A_nobrackets=$?
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| 67 |
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| 68 | ## STDOUT:
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| 69 | ['0', '1']
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| 70 | a_keys=0
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| 71 | ['']
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| 72 | a_nobrackets=0
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| 73 | ---
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| 74 | ['A', 'B']
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| 75 | A_keys=0
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| 76 | ['']
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| 77 | A_nobrackets=0
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| 78 | ## END
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| 79 |
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| 80 | #### ${!a[@]-'default'} is illegal
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| 81 |
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| 82 | # bash disallows this when a is an array. We originally made it an error
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| 83 | # because [@] implies it's an array, but we now changed to follow Bash when the
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| 84 | # array has a single element.
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| 85 |
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| 86 | argv.py "${!a[@]-default}"
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| 87 | echo status=$?
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| 88 |
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| 89 | a=(x y z)
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| 90 | argv.py "${!a[@]-default}"
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| 91 | echo status=$?
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| 92 | ## status: 1
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| 93 | ## STDOUT:
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| 94 | ['default']
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| 95 | status=0
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| 96 | ## END
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| 97 | ## BUG bash status: 0
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| 98 | ## BUG bash STDOUT:
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| 99 | ['default']
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| 100 | status=0
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| 101 | status=1
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| 102 | ## END
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| 103 |
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| 104 |
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| 105 | #### var ref to $@ with @
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| 106 | set -- one two
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| 107 | ref='@'
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| 108 | echo ref=${!ref}
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| 109 | ## STDOUT:
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| 110 | ref=one two
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| 111 | ## END
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| 112 |
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| 113 | #### var ref to $1 and $2 with 1 and 2
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| 114 | set -- one two
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| 115 | ref1='1'
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| 116 | echo ref1=${!ref1}
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| 117 | ref2='2'
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| 118 | echo ref2=${!ref2}
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| 119 |
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| 120 | ## STDOUT:
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| 121 | ref1=one
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| 122 | ref2=two
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| 123 | ## END
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| 124 |
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| 125 | #### var ref: 1, @, *
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| 126 | set -- x y
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| 127 | ref=1; argv.py "${!ref}"
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| 128 | ref=@; argv.py "${!ref}"
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| 129 | ref=*; argv.py "${!ref}" # maybe_decay_array bug?
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| 130 |
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| 131 | ## STDOUT:
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| 132 | ['x']
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| 133 | ['x', 'y']
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| 134 | ['x y']
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| 135 | ## END
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| 136 |
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| 137 | #### var ref to special var BASH_SOURCE
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| 138 | ref='LINENO'
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| 139 | echo lineno=${!ref}
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| 140 | ## STDOUT:
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| 141 | lineno=2
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| 142 | ## END
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| 143 |
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| 144 | #### var ref to $? with '?'
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| 145 | myfunc() {
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| 146 | local ref=$1
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| 147 | echo ${!ref}
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| 148 | }
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| 149 | myfunc FUNCNAME
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| 150 | myfunc '?'
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| 151 | ## STDOUT:
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| 152 | myfunc
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| 153 | 0
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| 154 | ## END
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| 155 |
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| 156 |
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| 157 | #### Var ref, then assignment with ${ := }
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| 158 | z=zz
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| 159 | zz=
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| 160 | echo ${!z:=foo}
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| 161 | echo ${!z:=bar}
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| 162 | ## STDOUT:
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| 163 | foo
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| 164 | foo
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| 165 | ## END
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| 166 |
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| 167 | #### Var ref, then error with ${ ? }
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| 168 | w=ww
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| 169 | ww=
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| 170 | echo ${!w:?'my message'}
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| 171 | echo done
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| 172 | ## status: 1
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| 173 | ## STDOUT:
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| 174 | ## END
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| 175 |
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| 176 | #### Indirect expansion, THEN suffix operators
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| 177 |
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| 178 | check_eq() {
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| 179 | [ "$1" = "$2" ] || { echo "$1 vs $2"; }
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| 180 | }
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| 181 | check_expand() {
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| 182 | val=$(eval "echo \"$1\"")
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| 183 | [ "$val" = "$2" ] || { echo "$1 -> expected $2, got $val"; }
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| 184 | }
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| 185 | check_err() {
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| 186 | e="$1"
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| 187 | msg=$(eval "$e" 2>&1) && echo "bad success: $e"
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| 188 | if test -n "$2"; then
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| 189 | if [[ "$msg" != $2 ]]; then
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| 190 | echo "Expected error: $e"
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| 191 | echo "Got error : $msg"
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| 192 | fi
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| 193 | fi
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| 194 | }
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| 195 | # Nearly everything in manual section 3.5.3 "Shell Parameter Expansion"
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| 196 | # is allowed after a !-indirection.
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| 197 | #
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| 198 | # Not allowed: any further prefix syntax.
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| 199 | x=xx; xx=aaabcc
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| 200 | xd=x
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| 201 | check_err '${!!xd}'
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| 202 | check_err '${!!x*}'
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| 203 | a=(asdf x)
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| 204 | check_err '${!!a[*]}'
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| 205 | check_err '${!#x}'
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| 206 | check_err '${!#a[@]}'
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| 207 | # And an array reference binds tighter in the syntax, so goes first;
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| 208 | # there's no way to spell "indirection, then array reference".
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| 209 | check_expand '${!a[1]}' xx
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| 210 | b=(aoeu a)
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| 211 | check_expand '${!b[1]}' asdf # i.e. like !(b[1]), not (!b)[1]
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| 212 | #
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| 213 | # Allowed: apparently everything else.
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| 214 | y=yy; yy=
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| 215 | check_expand '${!y:-foo}' foo
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| 216 | check_expand '${!x:-foo}' aaabcc
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| 217 |
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| 218 | check_expand '${!x:?oops}' aaabcc
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| 219 |
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| 220 | check_expand '${!y:+foo}' ''
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| 221 | check_expand '${!x:+foo}' foo
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| 222 |
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| 223 | check_expand '${!x:2}' abcc
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| 224 | check_expand '${!x:2:2}' ab
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| 225 |
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| 226 | check_expand '${!x#*a}' aabcc
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| 227 | check_expand '${!x%%c*}' aaab
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| 228 | check_expand '${!x/a*b/d}' dcc
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| 229 |
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| 230 | # ^ operator not fully implemented in OSH
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| 231 | #check_expand '${!x^a}' Aaabcc
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| 232 |
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| 233 | p=pp; pp='\$ '
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| 234 | check_expand '${!p@P}' '$ '
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| 235 | echo ok
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| 236 | ## stdout: ok
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| 237 |
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| 238 | #### var ref OF array var -- silent a[0] decay
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| 239 | declare -a a=(ale bean)
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| 240 | echo first=${!a}
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| 241 |
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| 242 | ale=zzz
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| 243 | echo first=${!a}
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| 244 |
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| 245 | ## status: 0
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| 246 | ## STDOUT:
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| 247 | first=
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| 248 | first=zzz
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| 249 | ## END
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| 250 |
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| 251 | #### array ref
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| 252 |
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| 253 | declare -a array=(ale bean)
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| 254 | ref='array[0]'
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| 255 | echo ${!ref}
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| 256 | ## status: 0
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| 257 | ## STDOUT:
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| 258 | ale
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| 259 | ## END
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| 260 |
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| 261 | #### array ref with strict_array
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| 262 | shopt -s strict_array
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| 263 |
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| 264 | declare -a array=(ale bean)
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| 265 | ref='array'
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| 266 | echo ${!ref}
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| 267 | ## status: 1
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| 268 | ## stdout-json: ""
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| 269 | ## N-I bash status: 0
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| 270 | ## N-I bash STDOUT:
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| 271 | ale
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| 272 | ## END
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| 273 |
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| 274 | #### var ref TO array var
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| 275 | shopt -s compat_array
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| 276 |
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| 277 | declare -a array=(ale bean)
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| 278 |
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| 279 | ref='array' # when compat_array is on, this is like array[0]
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| 280 | ref_AT='array[@]'
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| 281 |
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| 282 | echo ${!ref}
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| 283 | echo ${!ref_AT}
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| 284 |
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| 285 | ## STDOUT:
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| 286 | ale
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| 287 | ale bean
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| 288 | ## END
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| 289 |
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| 290 | #### var ref TO array var, with subscripts
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| 291 | f() {
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| 292 | argv.py "${!1}"
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| 293 | }
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| 294 | f 'nonexistent[0]'
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| 295 | array=(x y z)
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| 296 | f 'array[0]'
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| 297 | f 'array[1+1]'
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| 298 | f 'array[@]'
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| 299 | f 'array[*]'
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| 300 | # Also associative arrays.
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| 301 | ## STDOUT:
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| 302 | ['']
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| 303 | ['x']
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| 304 | ['z']
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| 305 | ['x', 'y', 'z']
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| 306 | ['x y z']
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| 307 | ## END
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| 308 |
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| 309 | #### var ref TO assoc array a[key]
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| 310 | shopt -s compat_array
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| 311 |
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| 312 | declare -A assoc=([ale]=bean [corn]=dip)
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| 313 | ref=assoc
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| 314 | #ref_AT='assoc[@]'
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| 315 |
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| 316 | # UNQUOTED doesn't work with Oil's parser
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| 317 | #ref_SUB='assoc[ale]'
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| 318 | ref_SUB='assoc["ale"]'
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| 319 |
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| 320 | ref_SUB_QUOTED='assoc["al"e]'
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| 321 |
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| 322 | ref_SUB_BAD='assoc["bad"]'
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| 323 |
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| 324 | echo ref=${!ref} # compat_array: assoc is equivalent to assoc[0]
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| 325 | #echo ref_AT=${!ref_AT}
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| 326 | echo ref_SUB=${!ref_SUB}
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| 327 | echo ref_SUB_QUOTED=${!ref_SUB_QUOTED}
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| 328 | echo ref_SUB_BAD=${!ref_SUB_BAD}
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| 329 |
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| 330 | ## STDOUT:
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| 331 | ref=
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| 332 | ref_SUB=bean
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| 333 | ref_SUB_QUOTED=bean
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| 334 | ref_SUB_BAD=
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| 335 | ## END
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| 336 |
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| 337 | #### var ref TO array with arbitrary subscripts
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| 338 | shopt -s eval_unsafe_arith compat_array
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| 339 |
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| 340 | f() {
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| 341 | local val=$(echo "${!1}")
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| 342 | if test "$val" = y; then
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| 343 | echo "works: $1"
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| 344 | fi
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| 345 | }
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| 346 | # Warmup: nice plain array reference
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| 347 | a=(x y)
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| 348 | f 'a[1]'
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| 349 | #
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| 350 | # Not allowed:
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| 351 | # no brace expansion
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| 352 | f 'a[{1,0}]' # operand expected
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| 353 | # no process substitution (but see command substitution below!)
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| 354 | f 'a[<(echo x)]' # operand expected
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| 355 | # TODO word splitting seems interesting
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| 356 | aa="1 0"
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| 357 | f 'a[$aa]' # 1 0: syntax error in expression (error token is "0")
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| 358 | # no filename globbing
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| 359 | f 'a[b*]' # operand expected
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| 360 | f 'a[1"]' # bad substitution
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| 361 | #
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| 362 | # Allowed: most everything else in section 3.5 "Shell Expansions".
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| 363 | # shell parameter expansion
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| 364 | b=1
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| 365 | f 'a[$b]'
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| 366 | f 'a[${c:-1}]'
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| 367 | # (... and presumably most of the other features there)
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| 368 | # command substitution, yikes!
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| 369 | f 'a[$(echo 1)]'
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| 370 | # arithmetic expansion
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| 371 | f 'a[$(( 3 - 2 ))]'
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| 372 |
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| 373 | # All of these are undocumented and probably shouldn't exist,
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| 374 | # though it's always possible some will turn up in the wild and
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| 375 | # we'll end up implementing them.
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| 376 |
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| 377 | ## STDOUT:
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| 378 | works: a[1]
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| 379 | works: a[$b]
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| 380 | works: a[${c:-1}]
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| 381 | works: a[$(echo 1)]
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| 382 | works: a[$(( 3 - 2 ))]
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| 383 | ## END
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| 384 |
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| 385 | #### Bizarre tilde expansion in array index
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| 386 | a=(x y)
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| 387 | PWD=1
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| 388 | ref='a[~+]'
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| 389 | echo ${!ref}
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| 390 | ## status: 1
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| 391 | ## BUG bash status: 0
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| 392 | ## BUG bash STDOUT:
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| 393 | y
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| 394 | ## END
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| 395 |
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| 396 | #### Indirect expansion TO fancy expansion features bash disallows
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| 397 |
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| 398 | check_indir() {
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| 399 | result="${!1}"
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| 400 | desugared_result=$(eval 'echo "${'"$1"'}"')
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| 401 | [ "$2" = "$desugared_result" ] || { echo "$1 $desugared_result"; }
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| 402 | }
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| 403 | x=y
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| 404 | y=a
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| 405 | a=(x y)
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| 406 | declare -A aa
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| 407 | aa=([k]=r [l]=s)
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| 408 | # malformed array indexing
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| 409 | check_indir "a[0"
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| 410 | check_indir "aa[k"
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| 411 | # double indirection
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| 412 | check_indir "!x" a
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| 413 | check_indir "!a[0]" y
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| 414 | # apparently everything else in the manual under "Shell Parameter Expansion"
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| 415 | check_indir "x:-foo" y
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| 416 | check_indir "x:=foo" y
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| 417 | check_indir "x:?oops" y
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| 418 | check_indir "x:+yy" yy
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| 419 | check_indir "x:0" y
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| 420 | check_indir "x:0:1" y
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| 421 | check_indir "!a@" "a aa"
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| 422 | # (!a[@] is elsewhere)
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| 423 | check_indir "#x" 1
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| 424 | check_indir "x#y"
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| 425 | check_indir "x/y/foo" foo
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| 426 | check_indir "x@Q" "'y'"
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| 427 | echo done
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| 428 | ## status: 1
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| 429 | ## stdout-json: ""
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| 430 | ## OK bash status: 0
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| 431 | ## OK bash stdout: done
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| 432 |
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| 433 | #### Bad var ref
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| 434 | a='bad var name'
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| 435 | echo ref ${!a}
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| 436 | echo status=$?
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| 437 |
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| 438 | ## STDOUT:
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| 439 | status=1
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| 440 | ## END
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| 441 | ## OK osh stdout-json: ""
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| 442 | ## OK osh status: 1
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| 443 |
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| 444 | #### Bad var ref 2
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| 445 | b='/' # really bad
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| 446 | echo ref ${!b}
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| 447 | echo status=$?
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| 448 | ## STDOUT:
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| 449 | status=1
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| 450 | ## END
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| 451 | ## OK osh stdout-json: ""
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| 452 | ## OK osh status: 1
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| 453 |
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| 454 | #### ${!OPTIND} (used by bash completion
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| 455 | set -- a b c
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| 456 | echo ${!OPTIND}
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| 457 | f() {
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| 458 | local OPTIND=1
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| 459 | echo ${!OPTIND}
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| 460 | local OPTIND=2
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| 461 | echo ${!OPTIND}
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| 462 | }
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| 463 | f x y z
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| 464 | ## STDOUT:
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| 465 | a
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| 466 | x
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| 467 | y
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| 468 | ## END
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| 469 |
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| 470 | #### var ref doesn't need cycle detection
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| 471 | x=y
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| 472 | y=x
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| 473 | echo cycle=${!x}
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| 474 |
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| 475 | typeset -n a=b
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| 476 | typeset -n b=a
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| 477 | echo cycle=${a}
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| 478 | ## status: 1
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| 479 | ## STDOUT:
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| 480 | cycle=x
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| 481 | ## END
|
| 482 | ## OK bash status: 0
|
| 483 | ## OK bash STDOUT:
|
| 484 | cycle=x
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| 485 | cycle=
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| 486 | ## END
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| 487 |
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| 488 | #### Var Ref Code Injection $(tee PWNED)
|
| 489 |
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| 490 | typeset -a a
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| 491 | a=(42)
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| 492 |
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| 493 | x='a[$(echo 0 | tee PWNED)]'
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| 494 |
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| 495 | echo ${!x}
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| 496 |
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| 497 | if test -f PWNED; then
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| 498 | echo PWNED
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| 499 | cat PWNED
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| 500 | else
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| 501 | echo NOPE
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| 502 | fi
|
| 503 |
|
| 504 | ## status: 1
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| 505 | ## STDOUT:
|
| 506 | ## END
|
| 507 |
|
| 508 | ## BUG bash status: 0
|
| 509 | ## BUG bash STDOUT:
|
| 510 | 42
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| 511 | PWNED
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| 512 | 0
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| 513 | ## END
|
| 514 |
|
| 515 | #### ${!array_ref:-set} and ${!array_ref:=assign}
|
| 516 |
|
| 517 | ref='a[@]'
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| 518 | a=('' '' '')
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| 519 |
|
| 520 | echo "==== check ===="
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| 521 |
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| 522 | argv.py "${!ref:-set}"
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| 523 | argv.py "${a[@]:-set}"
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| 524 |
|
| 525 | echo "==== assign ===="
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| 526 |
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| 527 | argv.py "${!ref:=assign}"
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| 528 | argv.py "${!ref}"
|
| 529 | a=('' '' '') # revert the state in case it is modified
|
| 530 |
|
| 531 | argv.py "${a[@]:=assign}"
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| 532 | argv.py "${a[@]}"
|
| 533 |
|
| 534 | ## STDOUT:
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| 535 | ==== check ====
|
| 536 | ['', '', '']
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| 537 | ['', '', '']
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| 538 | ==== assign ====
|
| 539 | ['', '', '']
|
| 540 | ['', '', '']
|
| 541 | ['', '', '']
|
| 542 | ['', '', '']
|
| 543 | ## END
|
| 544 |
|
| 545 | #### Array indirect expansion with suffix operators
|
| 546 |
|
| 547 | declare -A ref=(['dummy']=v1)
|
| 548 | function test-suffixes {
|
| 549 | echo "==== $1 ===="
|
| 550 | ref['dummy']=$1
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| 551 | argv.py "${!ref[@]:2}"
|
| 552 | argv.py "${!ref[@]:1:2}"
|
| 553 | argv.py "${!ref[@]:-empty}"
|
| 554 | argv.py "${!ref[@]:+set}"
|
| 555 | argv.py "${!ref[@]:=assign}"
|
| 556 | }
|
| 557 |
|
| 558 | v1=value
|
| 559 | test-suffixes v1
|
| 560 | echo "v1=$v1"
|
| 561 |
|
| 562 | v2=
|
| 563 | test-suffixes v2
|
| 564 | echo "v2=$v2"
|
| 565 |
|
| 566 | a1=()
|
| 567 | test-suffixes a1
|
| 568 | argv.py "${a1[@]}"
|
| 569 |
|
| 570 | a2=(element)
|
| 571 | test-suffixes 'a2[0]'
|
| 572 | argv.py "${a2[@]}"
|
| 573 |
|
| 574 | a3=(1 2 3)
|
| 575 | test-suffixes 'a3[@]'
|
| 576 | argv.py "${a3[@]}"
|
| 577 |
|
| 578 | ## STDOUT:
|
| 579 | ==== v1 ====
|
| 580 | ['lue']
|
| 581 | ['al']
|
| 582 | ['value']
|
| 583 | ['set']
|
| 584 | ['value']
|
| 585 | v1=value
|
| 586 | ==== v2 ====
|
| 587 | ['']
|
| 588 | ['']
|
| 589 | ['empty']
|
| 590 | ['']
|
| 591 | ['assign']
|
| 592 | v2=assign
|
| 593 | ==== a1 ====
|
| 594 | ['']
|
| 595 | ['']
|
| 596 | ['empty']
|
| 597 | ['']
|
| 598 | ['assign']
|
| 599 | ['assign']
|
| 600 | ==== a2[0] ====
|
| 601 | ['ement']
|
| 602 | ['le']
|
| 603 | ['element']
|
| 604 | ['set']
|
| 605 | ['element']
|
| 606 | ['element']
|
| 607 | ==== a3[@] ====
|
| 608 | ['3']
|
| 609 | ['2', '3']
|
| 610 | ['1', '2', '3']
|
| 611 | ['set']
|
| 612 | ['1', '2', '3']
|
| 613 | ['1', '2', '3']
|
| 614 | ## END
|
| 615 |
|
| 616 | #### Array indirect expansion with replacements
|
| 617 |
|
| 618 | declare -A ref=(['dummy']=v1)
|
| 619 | function test-rep {
|
| 620 | echo "==== $1 ===="
|
| 621 | ref['dummy']=$1
|
| 622 | argv.py "${!ref[@]#?}"
|
| 623 | argv.py "${!ref[@]%?}"
|
| 624 | argv.py "${!ref[@]//[a-f]}"
|
| 625 | argv.py "${!ref[@]//[a-f]/x}"
|
| 626 | }
|
| 627 |
|
| 628 | v1=value
|
| 629 | test-rep v1
|
| 630 |
|
| 631 | v2=
|
| 632 | test-rep v2
|
| 633 |
|
| 634 | a1=()
|
| 635 | test-rep a1
|
| 636 |
|
| 637 | a2=(element)
|
| 638 | test-rep 'a2[0]'
|
| 639 |
|
| 640 | a3=(1 2 3)
|
| 641 | test-rep 'a3[@]'
|
| 642 |
|
| 643 | ## STDOUT:
|
| 644 | ==== v1 ====
|
| 645 | ['alue']
|
| 646 | ['valu']
|
| 647 | ['vlu']
|
| 648 | ['vxlux']
|
| 649 | ==== v2 ====
|
| 650 | ['']
|
| 651 | ['']
|
| 652 | ['']
|
| 653 | ['']
|
| 654 | ==== a1 ====
|
| 655 | ['']
|
| 656 | ['']
|
| 657 | ['']
|
| 658 | ['']
|
| 659 | ==== a2[0] ====
|
| 660 | ['lement']
|
| 661 | ['elemen']
|
| 662 | ['lmnt']
|
| 663 | ['xlxmxnt']
|
| 664 | ==== a3[@] ====
|
| 665 | ['', '', '']
|
| 666 | ['', '', '']
|
| 667 | ['1', '2', '3']
|
| 668 | ['1', '2', '3']
|
| 669 | ## END
|
| 670 |
|
| 671 | ## BUG bash STDOUT:
|
| 672 | ==== v1 ====
|
| 673 | ['alue']
|
| 674 | ['valu']
|
| 675 | ['vlu']
|
| 676 | ['vxlux']
|
| 677 | ==== v2 ====
|
| 678 | ['']
|
| 679 | ['']
|
| 680 | ['']
|
| 681 | ['']
|
| 682 | ==== a1 ====
|
| 683 | ['']
|
| 684 | ['']
|
| 685 | ['']
|
| 686 | ['']
|
| 687 | ==== a2[0] ====
|
| 688 | ['lement']
|
| 689 | ['elemen']
|
| 690 | ['lmnt']
|
| 691 | ['xlxmxnt']
|
| 692 | ==== a3[@] ====
|
| 693 | []
|
| 694 | []
|
| 695 | ['1', '2', '3']
|
| 696 | ['1', '2', '3']
|
| 697 | ## END
|
| 698 |
|
| 699 | #### Array indirect expansion with @? conversion
|
| 700 |
|
| 701 | declare -A ref=(['dummy']=v1)
|
| 702 | function test-op0 {
|
| 703 | echo "==== $1 ===="
|
| 704 | ref['dummy']=$1
|
| 705 | argv.py "${!ref[@]@Q}"
|
| 706 | argv.py "${!ref[@]@P}"
|
| 707 | argv.py "${!ref[@]@a}"
|
| 708 | }
|
| 709 |
|
| 710 | v1=value
|
| 711 | test-op0 v1
|
| 712 |
|
| 713 | v2=
|
| 714 | test-op0 v2
|
| 715 |
|
| 716 | a1=()
|
| 717 | test-op0 a1
|
| 718 |
|
| 719 | a2=(element)
|
| 720 | test-op0 'a2[0]'
|
| 721 |
|
| 722 | a3=(1 2 3)
|
| 723 | test-op0 'a3[@]'
|
| 724 |
|
| 725 | ## STDOUT:
|
| 726 | ==== v1 ====
|
| 727 | ['value']
|
| 728 | ['value']
|
| 729 | ['']
|
| 730 | ==== v2 ====
|
| 731 | ["''"]
|
| 732 | ['']
|
| 733 | ['']
|
| 734 | ==== a1 ====
|
| 735 | ['']
|
| 736 | ['']
|
| 737 | ['a']
|
| 738 | ==== a2[0] ====
|
| 739 | ['element']
|
| 740 | ['element']
|
| 741 | ['a']
|
| 742 | ==== a3[@] ====
|
| 743 | ['1', '2', '3']
|
| 744 | ['1', '2', '3']
|
| 745 | ['a', 'a', 'a']
|
| 746 | ## END
|
| 747 |
|
| 748 | # Bash 4.4 has a bug in the section "==== a3[@] ====". Bash 5 correctly
|
| 749 | # outputs the following:
|
| 750 | #
|
| 751 | # ["'1'", "'2'", "'3'"]
|
| 752 | # ['1', '2', '3']
|
| 753 | # ['a', 'a', 'a']
|
| 754 |
|
| 755 | ## BUG bash STDOUT:
|
| 756 | ==== v1 ====
|
| 757 | ["'value'"]
|
| 758 | ['value']
|
| 759 | ['']
|
| 760 | ==== v2 ====
|
| 761 | ["''"]
|
| 762 | ['']
|
| 763 | ['']
|
| 764 | ==== a1 ====
|
| 765 | ['']
|
| 766 | ['']
|
| 767 | ['a']
|
| 768 | ==== a2[0] ====
|
| 769 | ["'element'"]
|
| 770 | ['element']
|
| 771 | ['a']
|
| 772 | ==== a3[@] ====
|
| 773 | []
|
| 774 | []
|
| 775 | []
|
| 776 | ## END
|