| 1 | ## compare_shells: bash zsh mksh ash
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| 2 | ## oils_failures_allowed: 9
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| 3 |
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| 4 | # Note: this file elaborates on spec/ble-idioms.test.sh
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| 5 |
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| 6 | #### Indexed LHS without spaces, and +=
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| 7 | a[1]=x
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| 8 | echo status=$?
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| 9 | argv.py "${a[@]}"
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| 10 |
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| 11 | a[0+2]=y
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| 12 | #a[2|3]=y # zsh doesn't allow this
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| 13 | argv.py "${a[@]}"
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| 14 |
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| 15 | # += does appending
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| 16 | a[0+2]+=z
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| 17 | argv.py "${a[@]}"
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| 18 |
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| 19 | ## STDOUT:
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| 20 | status=0
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| 21 | ['x']
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| 22 | ['x', 'y']
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| 23 | ['x', 'yz']
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| 24 | ## END
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| 25 |
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| 26 | ## N-I ash status: 2
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| 27 | ## N-I ash STDOUT:
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| 28 | status=127
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| 29 | ## END
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| 30 |
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| 31 | #### Indexed LHS with spaces
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| 32 | case $SH in zsh|ash) exit ;; esac
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| 33 |
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| 34 | a[1 * 1]=x
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| 35 | a[ 1 + 2 ]=z
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| 36 | echo status=$?
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| 37 |
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| 38 | argv.py "${a[@]}"
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| 39 | ## STDOUT:
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| 40 | status=0
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| 41 | ['x', 'z']
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| 42 | ## END
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| 43 | ## N-I zsh/ash STDOUT:
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| 44 | ## END
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| 45 |
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| 46 | #### Nested a[i[0]]=0
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| 47 | case $SH in zsh|ash) exit ;; esac
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| 48 |
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| 49 | i=(0 1 2)
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| 50 |
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| 51 | a[i[0]]=0
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| 52 | a[ i[1] ]=1
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| 53 | a[ i[2] ]=2
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| 54 | a[ i[1]+i[2] ]=3
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| 55 |
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| 56 | argv.py "${a[@]}"
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| 57 |
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| 58 | ## STDOUT:
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| 59 | ['0', '1', '2', '3']
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| 60 | ## END
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| 61 | ## N-I zsh/ash STDOUT:
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| 62 | ## END
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| 63 |
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| 64 | #### Multiple LHS array words
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| 65 | case $SH in zsh|ash) exit ;; esac
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| 66 |
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| 67 | a=(0 1 2)
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| 68 | b=(3 4 5)
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| 69 |
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| 70 | #declare -p a b
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| 71 |
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| 72 | HOME=/home/spec-test
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| 73 |
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| 74 | # empty string, and tilde sub
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| 75 | a[0 + 1]= b[2 + 0]=~/src
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| 76 |
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| 77 | typeset -p a b
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| 78 |
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| 79 | echo ---
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| 80 |
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| 81 | # In bash, this bad prefix binding prints an error, but nothing fails
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| 82 | a[0 + 1]='foo' argv.py b[2 + 0]='bar'
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| 83 | echo status=$?
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| 84 |
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| 85 | typeset -p a b
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| 86 |
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| 87 | ## STDOUT:
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| 88 | declare -a a=([0]="0" [1]="" [2]="2")
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| 89 | declare -a b=([0]="3" [1]="4" [2]="/home/spec-test/src")
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| 90 | ---
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| 91 | ['b[2', '+', '0]=bar']
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| 92 | status=0
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| 93 | declare -a a=([0]="0" [1]="" [2]="2")
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| 94 | declare -a b=([0]="3" [1]="4" [2]="/home/spec-test/src")
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| 95 | ## END
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| 96 |
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| 97 | ## OK mksh STDOUT:
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| 98 | set -A a
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| 99 | typeset a[0]=0
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| 100 | typeset a[1]=
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| 101 | typeset a[2]=2
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| 102 | set -A b
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| 103 | typeset b[0]=3
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| 104 | typeset b[1]=4
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| 105 | typeset b[2]=/home/spec-test/src
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| 106 | ---
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| 107 | ['b[2', '+', '0]=bar']
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| 108 | status=0
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| 109 | set -A a
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| 110 | typeset a[0]=0
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| 111 | typeset a[1]=
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| 112 | typeset a[2]=2
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| 113 | set -A b
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| 114 | typeset b[0]=3
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| 115 | typeset b[1]=4
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| 116 | typeset b[2]=/home/spec-test/src
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| 117 | ## END
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| 118 |
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| 119 | ## N-I zsh/ash STDOUT:
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| 120 | ## END
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| 121 |
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| 122 | #### LHS array is protected with shopt -s eval_unsafe_arith, e.g. 'a[$(echo 2)]'
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| 123 | case $SH in zsh|ash) exit ;; esac
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| 124 |
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| 125 | a=(0 1 2)
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| 126 | b=(3 4 5)
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| 127 | typeset -p b
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| 128 |
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| 129 | expr='a[$(echo 2)]'
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| 130 |
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| 131 | echo 'get' "${b[expr]}"
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| 132 |
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| 133 | b[expr]=zzz
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| 134 |
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| 135 | echo 'set' "${b[expr]}"
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| 136 | typeset -p b
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| 137 |
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| 138 | ## STDOUT:
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| 139 | declare -a b=([0]="3" [1]="4" [2]="5")
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| 140 | get 5
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| 141 | set zzz
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| 142 | declare -a b=([0]="3" [1]="4" [2]="zzz")
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| 143 | ## END
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| 144 |
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| 145 | ## OK mksh STDOUT:
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| 146 | set -A b
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| 147 | typeset b[0]=3
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| 148 | typeset b[1]=4
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| 149 | typeset b[2]=5
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| 150 | get 5
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| 151 | set zzz
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| 152 | set -A b
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| 153 | typeset b[0]=3
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| 154 | typeset b[1]=4
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| 155 | typeset b[2]=zzz
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| 156 | ## END
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| 157 |
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| 158 | ## N-I zsh/ash STDOUT:
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| 159 | ## END
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| 160 |
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| 161 | #### file named a[ is not executed
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| 162 | case $SH in zsh|ash) exit ;; esac
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| 163 |
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| 164 | PATH=".:$PATH"
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| 165 |
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| 166 | for name in 'a[' 'a[5'; do
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| 167 | echo "echo hi from $name: \$# args: \$@" > "$name"
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| 168 | chmod +x "$name"
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| 169 | done
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| 170 |
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| 171 | # this does not executed a[5
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| 172 | a[5 + 1]=
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| 173 | a[5 / 1]=y
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| 174 | echo len=${#a[@]}
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| 175 |
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| 176 | # Not detected as assignment because there's a non-arith character
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| 177 | # bash and mksh both give a syntax error
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| 178 | a[5 # 1]=
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| 179 |
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| 180 | ## status: 1
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| 181 | ## STDOUT:
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| 182 | len=2
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| 183 | ## END
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| 184 |
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| 185 | ## N-I zsh/ash status: 0
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| 186 | ## N-I zsh/ash STDOUT:
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| 187 | ## END
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| 188 |
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| 189 | #### More fragments like a[ a[5 a[5 + a[5 + 3]
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| 190 |
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| 191 | for name in 'a[' 'a[5'; do
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| 192 | echo "echo hi from $name: \$# args: \$@" > "$name"
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| 193 | chmod +x "$name"
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| 194 | done
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| 195 |
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| 196 | # syntax error in bash
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| 197 | $SH -c 'a['
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| 198 | echo "a[ status=$?"
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| 199 |
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| 200 | $SH -c 'a[5'
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| 201 | echo "a[5 status=$?"
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| 202 |
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| 203 | # 1 arg +
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| 204 | $SH -c 'a[5 +'
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| 205 | echo "a[5 + status=$?"
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| 206 |
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| 207 | # 2 args
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| 208 | $SH -c 'a[5 + 3]'
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| 209 | echo "a[5 + 3] status=$?"
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| 210 |
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| 211 | $SH -c 'a[5 + 3]='
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| 212 | echo "a[5 + 3]= status=$?"
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| 213 |
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| 214 | $SH -c 'a[5 + 3]+'
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| 215 | echo "a[5 + 3]+ status=$?"
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| 216 |
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| 217 | $SH -c 'a[5 + 3]+='
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| 218 | echo "a[5 + 3]+= status=$?"
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| 219 |
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| 220 | # mksh doesn't issue extra parse errors
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| 221 | # and it doesn't turn a[5 + 3] and a[5 + 3]+ into commands!
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| 222 |
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| 223 | ## STDOUT:
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| 224 | a[ status=127
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| 225 | a[5 status=127
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| 226 | a[5 + status=127
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| 227 | a[5 + 3] status=127
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| 228 | a[5 + 3]= status=0
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| 229 | a[5 + 3]+ status=127
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| 230 | a[5 + 3]+= status=0
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| 231 | ## END
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| 232 |
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| 233 | ## BUG bash STDOUT:
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| 234 | a[ status=2
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| 235 | a[5 status=2
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| 236 | a[5 + status=2
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| 237 | a[5 + 3] status=127
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| 238 | a[5 + 3]= status=0
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| 239 | a[5 + 3]+ status=127
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| 240 | a[5 + 3]+= status=0
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| 241 | ## END
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| 242 |
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| 243 | # in zsh, everything becomes "bad pattern"
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| 244 |
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| 245 | ## BUG-2 zsh STDOUT:
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| 246 | a[ status=1
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| 247 | a[5 status=1
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| 248 | a[5 + status=1
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| 249 | a[5 + 3] status=1
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| 250 | a[5 + 3]= status=1
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| 251 | a[5 + 3]+ status=1
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| 252 | a[5 + 3]+= status=1
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| 253 | ## END
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| 254 |
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| 255 | # ash behavior is consistent
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| 256 |
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| 257 | ## N-I ash STDOUT:
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| 258 | a[ status=127
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| 259 | a[5 status=127
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| 260 | a[5 + status=127
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| 261 | a[5 + 3] status=127
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| 262 | a[5 + 3]= status=127
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| 263 | a[5 + 3]+ status=127
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| 264 | a[5 + 3]+= status=127
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| 265 | ## END
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| 266 |
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| 267 | #### Are quotes allowed?
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| 268 |
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| 269 | # double quotes allowed in bash
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| 270 | a["1"]=2
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| 271 | echo status=$? len=${#a[@]}
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| 272 |
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| 273 | a['2']=3
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| 274 | echo status=$? len=${#a[@]}
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| 275 |
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| 276 | # allowed in bash
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| 277 | a[2 + "3"]=5
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| 278 | echo status=$? len=${#a[@]}
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| 279 |
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| 280 | a[3 + '4']=5
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| 281 | echo status=$? len=${#a[@]}
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| 282 |
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| 283 | ## status: 1
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| 284 | ## STDOUT:
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| 285 | ## END
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| 286 |
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| 287 | ## OK ash status: 2
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| 288 |
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| 289 | # syntax errors are not fatal in bash
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| 290 |
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| 291 | ## BUG bash status: 0
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| 292 | ## BUG bash STDOUT:
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| 293 | status=0 len=1
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| 294 | status=1 len=1
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| 295 | status=0 len=2
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| 296 | status=1 len=2
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| 297 | ## END
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| 298 |
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| 299 | #### Tricky parsing - a[ a[0]=1 ]=X a[ a[0]+=1 ]+=X
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| 300 | case $SH in zsh|mksh|ash) exit ;; esac
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| 301 |
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| 302 | # the nested [] means we can't use regular language lookahead?
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| 303 |
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| 304 | echo assign=$(( z[0] = 42 ))
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| 305 |
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| 306 | a[a[0]=1]=X
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| 307 | declare -p a
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| 308 |
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| 309 | a[ a[2]=3 ]=Y
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| 310 | declare -p a
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| 311 |
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| 312 | echo ---
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| 313 |
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| 314 | a[ a[0]+=1 ]+=X
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| 315 | declare -p a
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| 316 |
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| 317 | ## STDOUT:
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| 318 | assign=42
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| 319 | declare -a a=([0]="1" [1]="X")
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| 320 | declare -a a=([0]="1" [1]="X" [2]="3" [3]="Y")
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| 321 | ---
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| 322 | declare -a a=([0]="2" [1]="X" [2]="3X" [3]="Y")
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| 323 | ## END
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| 324 |
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| 325 | ## N-I zsh/mksh/ash STDOUT:
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| 326 | ## END
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| 327 |
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| 328 | #### argv.py a[1 + 2]=
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| 329 | case $SH in zsh|ash) exit ;; esac
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| 330 |
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| 331 | # This tests that the worse parser doesn't unconditinoally treat a[ as special
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| 332 |
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| 333 | a[1 + 2]= argv.py a[1 + 2]=
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| 334 | echo status=$?
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| 335 |
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| 336 | a[1 + 2]+= argv.py a[1 + 2]+=
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| 337 | echo status=$?
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| 338 |
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| 339 | argv.py a[3 + 4]=
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| 340 |
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| 341 | argv.py a[3 + 4]+=
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| 342 |
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| 343 | ## STDOUT:
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| 344 | ['a[1', '+', '2]=']
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| 345 | status=0
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| 346 | ['a[1', '+', '2]+=']
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| 347 | status=0
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| 348 | ['a[3', '+', '4]=']
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| 349 | ['a[3', '+', '4]+=']
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| 350 | ## END
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| 351 |
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| 352 | ## N-I zsh/ash STDOUT:
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| 353 | ## END
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| 354 |
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| 355 | #### declare builtin doesn't allow spaces
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| 356 | case $SH in zsh|mksh|ash) exit ;; esac
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| 357 |
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| 358 | # OSH doesn't allow this
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| 359 | declare a[a[0]=1]=X
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| 360 | declare -p a
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| 361 |
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| 362 | # neither bash nor OSH allow this
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| 363 | declare a[ a[2]=3 ]=Y
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| 364 | declare -p a
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| 365 |
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| 366 | ## STDOUT:
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| 367 | declare -a a=([0]="1" [1]="X")
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| 368 | declare -a a=([0]="1" [1]="X" [2]="3")
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| 369 | ## END
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| 370 |
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| 371 | ## OK osh status: 1
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| 372 | ## OK osh STDOUT:
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| 373 | ## END
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| 374 |
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| 375 | ## N-I zsh/mksh/ash STDOUT:
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| 376 | ## END
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