| 1 | ## compare_shells: bash-4.4
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| 2 | ## oils_failures_allowed: 2
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| 3 |
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| 4 |
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| 5 | # NOTE:
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| 6 | # -declare -A is required.
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| 7 | #
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| 8 | # Simply doing:
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| 9 | # a=([aa]=b [foo]=bar ['a+1']=c)
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| 10 | # gets utterly bizarre behavior.
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| 11 | #
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| 12 | # Associtative Arrays are COMPLETELY bash-specific. mksh doesn't even come
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| 13 | # close. So I will probably not implement them, or implement something
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| 14 | # slightly different, because the semantics are just weird.
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| 15 |
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| 16 | # http://www.gnu.org/software/bash/manual/html_node/Arrays.html
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| 17 | # TODO: Need a SETUP section.
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| 18 |
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| 19 | #### Literal syntax ([x]=y)
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| 20 | declare -A a
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| 21 | a=([aa]=b [foo]=bar ['a+1']=c)
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| 22 | echo ${a["aa"]}
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| 23 | echo ${a["foo"]}
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| 24 | echo ${a["a+1"]}
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| 25 | ## STDOUT:
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| 26 | b
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| 27 | bar
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| 28 | c
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| 29 | ## END
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| 30 |
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| 31 | #### set associative array to indexed array literal (very surprising bash behavior)
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| 32 | declare -A assoc=([k1]=foo [k2]='spam eggs')
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| 33 | declare -p assoc
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| 34 |
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| 35 | # Bash 5.1 assoc=(key value). Bash 5.0 (including the currently tested 4.4)
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| 36 | # does not implement this.
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| 37 |
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| 38 | assoc=(foo 'spam eggs')
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| 39 | declare -p assoc
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| 40 |
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| 41 | ## STDOUT:
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| 42 | declare -A assoc=(['k1']=foo ['k2']='spam eggs')
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| 43 | declare -A assoc=(['foo']='spam eggs')
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| 44 | ## END
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| 45 | ## N-I bash STDOUT:
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| 46 | declare -A assoc=([k1]="foo" [k2]="spam eggs" )
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| 47 | declare -A assoc=()
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| 48 | ## END
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| 49 |
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| 50 | #### Can initialize assoc array with the "(key value ...)" sequence
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| 51 | declare -A A=(1 2 3)
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| 52 | echo status=$?
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| 53 | declare -p A
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| 54 | ## STDOUT:
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| 55 | status=0
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| 56 | declare -A A=(['1']=2 ['3']='')
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| 57 | ## END
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| 58 |
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| 59 | # bash-4.4 prints warnings to stderr but gives no indication of the problem
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| 60 | ## BUG bash STDOUT:
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| 61 | status=0
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| 62 | declare -A A=()
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| 63 | ## END
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| 64 |
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| 65 | #### create empty assoc array, put, then get
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| 66 | declare -A A # still undefined
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| 67 | argv.py "${A[@]}"
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| 68 | argv.py "${!A[@]}"
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| 69 | A['foo']=bar
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| 70 | echo ${A['foo']}
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| 71 | ## STDOUT:
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| 72 | []
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| 73 | []
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| 74 | bar
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| 75 | ## END
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| 76 |
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| 77 | #### Empty value (doesn't use EmptyWord?)
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| 78 | declare -A A=(["k"]= )
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| 79 | argv.py "${A["k"]}"
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| 80 | ## STDOUT:
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| 81 | ['']
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| 82 | ## END
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| 83 |
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| 84 | #### retrieve keys with !
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| 85 | declare -A a
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| 86 | var='x'
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| 87 | a["$var"]=b
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| 88 | a['foo']=bar
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| 89 | a['a+1']=c
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| 90 | for key in "${!a[@]}"; do
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| 91 | echo $key
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| 92 | done | sort
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| 93 | ## STDOUT:
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| 94 | a+1
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| 95 | foo
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| 96 | x
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| 97 | ## END
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| 98 |
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| 99 | #### retrieve values with ${A[@]}
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| 100 | declare -A A
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| 101 | var='x'
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| 102 | A["$var"]=b
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| 103 | A['foo']=bar
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| 104 | A['a+1']=c
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| 105 | for val in "${A[@]}"; do
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| 106 | echo $val
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| 107 | done | sort
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| 108 | ## STDOUT:
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| 109 | b
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| 110 | bar
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| 111 | c
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| 112 | ## END
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| 113 |
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| 114 | #### coerce to string with ${A[*]}, etc.
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| 115 | declare -A A
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| 116 | A['X X']=xx
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| 117 | A['Y Y']=yy
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| 118 | argv.py "${A[*]}"
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| 119 | argv.py "${!A[*]}"
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| 120 |
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| 121 | argv.py ${A[@]}
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| 122 | argv.py ${!A[@]}
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| 123 | ## STDOUT:
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| 124 | ['xx yy']
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| 125 | ['X X Y Y']
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| 126 | ['xx', 'yy']
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| 127 | ['X', 'X', 'Y', 'Y']
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| 128 | ## END
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| 129 |
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| 130 | #### ${A[@]/b/B}
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| 131 | # but ${!A[@]/b/B} doesn't work
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| 132 | declare -A A
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| 133 | A['aa']=bbb
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| 134 | A['bb']=ccc
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| 135 | A['cc']=ddd
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| 136 | for val in "${A[@]//b/B}"; do
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| 137 | echo $val
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| 138 | done | sort
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| 139 | ## STDOUT:
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| 140 | BBB
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| 141 | ccc
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| 142 | ddd
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| 143 | ## END
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| 144 |
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| 145 | #### ${A[@]#prefix}
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| 146 | declare -A A
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| 147 | A['aa']=one
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| 148 | A['bb']=two
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| 149 | A['cc']=three
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| 150 | for val in "${A[@]#t}"; do
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| 151 | echo $val
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| 152 | done | sort
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| 153 | ## STDOUT:
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| 154 | hree
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| 155 | one
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| 156 | wo
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| 157 | ## END
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| 158 |
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| 159 | #### ${assoc} is like ${assoc[0]}
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| 160 | declare -A a
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| 161 |
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| 162 | a=([aa]=b [foo]=bar ['a+1']=c)
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| 163 | echo a="${a}"
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| 164 |
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| 165 | a=([0]=zzz)
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| 166 | echo a="${a}"
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| 167 |
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| 168 | a=(['0']=yyy)
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| 169 | echo a="${a}"
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| 170 |
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| 171 | ## STDOUT:
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| 172 | a=
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| 173 | a=zzz
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| 174 | a=yyy
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| 175 | ## END
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| 176 |
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| 177 | #### length ${#a[@]}
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| 178 | declare -A a
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| 179 | a["x"]=1
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| 180 | a["y"]=2
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| 181 | a["z"]=3
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| 182 | echo "${#a[@]}"
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| 183 | ## stdout: 3
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| 184 |
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| 185 | #### lookup with ${a[0]} -- "0" is a string
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| 186 | declare -A a
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| 187 | a["0"]=a
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| 188 | a["1"]=b
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| 189 | a["2"]=c
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| 190 | echo 0 "${a[0]}" 1 "${a[1]}" 2 "${a[2]}"
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| 191 | ## STDOUT:
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| 192 | 0 a 1 b 2 c
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| 193 | ## END
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| 194 |
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| 195 | #### lookup with double quoted strings "mykey"
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| 196 | declare -A a
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| 197 | a["aa"]=b
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| 198 | a["foo"]=bar
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| 199 | a['a+1']=c
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| 200 | echo "${a["aa"]}" "${a["foo"]}" "${a["a+1"]}"
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| 201 | ## STDOUT:
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| 202 | b bar c
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| 203 | ## END
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| 204 |
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| 205 | #### lookup with single quoted string
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| 206 | declare -A a
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| 207 | a["aa"]=b
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| 208 | a["foo"]=bar
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| 209 | a['a+1']=c
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| 210 | echo "${a['a+1']}"
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| 211 | ## stdout: c
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| 212 |
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| 213 | #### lookup with unquoted $key and quoted "$i$i"
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| 214 | declare -A A
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| 215 | A["aa"]=b
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| 216 | A["foo"]=bar
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| 217 |
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| 218 | key=foo
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| 219 | echo ${A[$key]}
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| 220 | i=a
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| 221 | echo ${A["$i$i"]} # note: ${A[$i$i]} doesn't work in OSH
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| 222 | ## STDOUT:
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| 223 | bar
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| 224 | b
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| 225 | ## END
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| 226 |
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| 227 | #### lookup by unquoted string doesn't work in OSH because it's a variable
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| 228 | declare -A a
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| 229 | a["aa"]=b
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| 230 | a["foo"]=bar
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| 231 | a['a+1']=c
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| 232 | echo "${a[a+1]}"
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| 233 | ## stdout-json: ""
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| 234 | ## status: 1
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| 235 | ## BUG bash stdout: c
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| 236 | ## BUG bash status: 0
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| 237 |
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| 238 | #### bash bug: "i+1" and i+1 are the same key
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| 239 |
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| 240 | i=1
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| 241 | array=(5 6 7)
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| 242 | echo array[i]="${array[i]}"
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| 243 | echo array[i+1]="${array[i+1]}"
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| 244 |
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| 245 | # arithmetic does NOT work here in bash. These are unquoted strings!
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| 246 | declare -A assoc
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| 247 | assoc[i]=$i
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| 248 | assoc[i+1]=$i+1
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| 249 |
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| 250 | assoc["i"]=string
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| 251 | assoc["i+1"]=string+1
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| 252 |
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| 253 | echo assoc[i]="${assoc[i]}"
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| 254 | echo assoc[i+1]="${assoc[i+1]}"
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| 255 |
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| 256 | echo assoc[i]="${assoc["i"]}"
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| 257 | echo assoc[i+1]="${assoc["i+1"]}"
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| 258 |
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| 259 | ## status: 1
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| 260 | ## STDOUT:
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| 261 | array[i]=6
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| 262 | array[i+1]=7
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| 263 | ## END
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| 264 | ## BUG bash status: 0
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| 265 | ## BUG bash STDOUT:
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| 266 | array[i]=6
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| 267 | array[i+1]=7
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| 268 | assoc[i]=string
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| 269 | assoc[i+1]=string+1
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| 270 | assoc[i]=string
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| 271 | assoc[i+1]=string+1
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| 272 | ## END
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| 273 |
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| 274 | #### Array stored in associative array gets converted to string (without strict_array)
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| 275 |
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| 276 | array=('1 2' 3)
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| 277 | declare -A d
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| 278 | d['key']="${array[@]}"
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| 279 | argv.py "${d['key']}"
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| 280 | ## stdout: ['1 2 3']
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| 281 |
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| 282 | #### Indexed array as key of associative array coerces to string (without shopt -s strict_array)
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| 283 |
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| 284 | declare -a array=(1 2 3)
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| 285 | declare -A assoc
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| 286 | assoc[42]=43
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| 287 | assoc["${array[@]}"]=foo
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| 288 |
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| 289 | echo "${assoc["${array[@]}"]}"
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| 290 | for entry in "${!assoc[@]}"; do
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| 291 | echo $entry
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| 292 | done | sort
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| 293 |
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| 294 | ## STDOUT:
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| 295 | foo
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| 296 | 1 2 3
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| 297 | 42
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| 298 | ## END
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| 299 |
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| 300 | #### Append to associative array value A['x']+='suffix'
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| 301 | declare -A A
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| 302 | A['x']='foo'
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| 303 | A['x']+='bar'
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| 304 | A['x']+='bar'
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| 305 | argv.py "${A["x"]}"
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| 306 | ## STDOUT:
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| 307 | ['foobarbar']
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| 308 | ## END
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| 309 |
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| 310 | #### Slice of associative array doesn't make sense in bash
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| 311 | declare -A a
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| 312 | a[xx]=1
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| 313 | a[yy]=2
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| 314 | a[zz]=3
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| 315 | a[aa]=4
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| 316 | a[bb]=5
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| 317 | #argv.py ${a["xx"]}
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| 318 | argv.py ${a[@]: 0: 3}
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| 319 | argv.py ${a[@]: 1: 3}
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| 320 | argv.py ${a[@]: 2: 3}
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| 321 | argv.py ${a[@]: 3: 3}
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| 322 | argv.py ${a[@]: 4: 3}
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| 323 | argv.py ${a[@]: 5: 3}
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| 324 | ## stdout-json: ""
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| 325 | ## status: 1
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| 326 | ## BUG bash STDOUT:
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| 327 | ['2', '1', '5']
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| 328 | ['2', '1', '5']
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| 329 | ['1', '5', '4']
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| 330 | ['5', '4', '3']
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| 331 | ['4', '3']
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| 332 | ['3']
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| 333 | ## END
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| 334 | ## BUG bash status: 0
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| 335 |
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| 336 | #### bash variable can have an associative array part and a string part
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| 337 |
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| 338 | # and $assoc is equivalent to ${assoc[0]}, just like regular arrays
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| 339 | declare -A assoc
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| 340 | assoc[1]=1
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| 341 | assoc[2]=2
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| 342 | echo ${assoc[1]} ${assoc[2]} ${assoc}
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| 343 | assoc[0]=zero
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| 344 | echo ${assoc[1]} ${assoc[2]} ${assoc}
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| 345 | assoc=string
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| 346 | echo ${assoc[1]} ${assoc[2]} ${assoc}
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| 347 | ## STDOUT:
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| 348 | 1 2
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| 349 | 1 2 zero
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| 350 | 1 2 string
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| 351 | ## END
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| 352 | ## N-I osh status: 1
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| 353 | ## N-I osh STDOUT:
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| 354 | 1 2
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| 355 | 1 2 zero
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| 356 | ## END
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| 357 |
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| 358 | #### Associative array expressions inside (( )) with keys that look like numbers
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| 359 | declare -A assoc
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| 360 | assoc[0]=42
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| 361 | (( var = ${assoc[0]} ))
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| 362 | echo $var
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| 363 | (( var = assoc[0] ))
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| 364 | echo $var
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| 365 | ## STDOUT:
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| 366 | 42
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| 367 | 42
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| 368 | ## END
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| 369 |
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| 370 | #### (( A[5] += 42 ))
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| 371 | declare -A A
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| 372 | (( A[5] = 10 ))
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| 373 | (( A[5] += 6 ))
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| 374 | echo ${A[5]}
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| 375 | ## STDOUT:
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| 376 | 16
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| 377 | ## END
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| 378 |
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| 379 | #### (( A[5] += 42 )) with empty cell
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| 380 | shopt -u strict_arith # default zero cell
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| 381 | declare -A A
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| 382 | (( A[5] += 6 ))
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| 383 | echo ${A[5]}
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| 384 | ## STDOUT:
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| 385 | 6
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| 386 | ## END
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| 387 |
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| 388 | #### setting key to itself (from bash-bug mailing list)
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| 389 | declare -A foo
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| 390 | foo=(["key"]="value1")
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| 391 | echo ${foo["key"]}
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| 392 | foo=(["key"]="${foo["key"]} value2")
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| 393 | echo ${foo["key"]}
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| 394 | ## STDOUT:
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| 395 | value1
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| 396 | value1 value2
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| 397 | ## END
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| 398 | ## BUG bash STDOUT:
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| 399 | value1
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| 400 | value2
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| 401 | ## END
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| 402 |
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| 403 | #### readonly associative array can't be modified
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| 404 | declare -Ar A
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| 405 | A['x']=1
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| 406 | echo status=$?
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| 407 | ## OK osh status: 1
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| 408 | ## OK osh stdout-json: ""
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| 409 | ## STDOUT:
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| 410 | status=1
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| 411 | ## END
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| 412 |
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| 413 | #### associative array and brace expansion
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| 414 | declare -A A=([k1]=v [k2]=-{a,b}-)
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| 415 | echo ${A["k1"]}
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| 416 | echo ${A["k2"]}
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| 417 | ## STDOUT:
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| 418 | v
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| 419 | -{a,b}-
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| 420 | ## END
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| 421 |
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| 422 | #### declare -A A=() allowed
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| 423 | set -o nounset
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| 424 | shopt -s strict_arith || true
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| 425 |
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| 426 | declare -A ASSOC=()
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| 427 | echo len=${#ASSOC[@]}
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| 428 |
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| 429 | # Check that it really can be used like an associative array
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| 430 | ASSOC['k']='32'
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| 431 | echo len=${#ASSOC[@]}
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| 432 |
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| 433 | # bash allows a variable to be an associative array AND unset, while OSH
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| 434 | # doesn't
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| 435 | set +o nounset
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| 436 | declare -A u
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| 437 | echo unset len=${#u[@]}
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| 438 | ## STDOUT:
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| 439 | len=0
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| 440 | len=1
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| 441 | unset len=0
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| 442 | ## END
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| 443 |
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| 444 | #### unset -v and assoc array
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| 445 | shopt -s eval_unsafe_arith || true
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| 446 |
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| 447 | show-len() {
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| 448 | echo len=${#assoc[@]}
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| 449 | }
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| 450 |
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| 451 | declare -A assoc=(['K']=val)
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| 452 | show-len
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| 453 |
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| 454 | unset -v 'assoc["K"]'
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| 455 | show-len
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| 456 |
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| 457 | declare -A assoc=(['K']=val)
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| 458 | show-len
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| 459 | key=K
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| 460 | unset -v 'assoc[$key]'
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| 461 | show-len
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| 462 |
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| 463 | declare -A assoc=(['K']=val)
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| 464 | show-len
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| 465 | unset -v 'assoc[$(echo K)]'
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| 466 | show-len
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| 467 |
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| 468 | # ${prefix} doesn't work here, even though it does in arithmetic
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| 469 | #declare -A assoc=(['K']=val)
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| 470 | #show-len
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| 471 | #prefix=as
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| 472 | #unset -v '${prefix}soc[$key]'
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| 473 | #show-len
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| 474 |
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| 475 | ## STDOUT:
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| 476 | len=1
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| 477 | len=0
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| 478 | len=1
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| 479 | len=0
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| 480 | len=1
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| 481 | len=0
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| 482 | ## END
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| 483 |
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| 484 | #### nameref and assoc array
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| 485 | show-values() {
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| 486 | echo values: ${A[@]}
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| 487 | }
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| 488 |
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| 489 | declare -A A=(['K']=val)
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| 490 | show-values
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| 491 |
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| 492 | declare -n ref='A["K"]'
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| 493 | echo before $ref
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| 494 | ref='val2'
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| 495 | echo after $ref
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| 496 | show-values
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| 497 |
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| 498 | echo ---
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| 499 |
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| 500 | key=K
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| 501 | declare -n ref='A[$key]'
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| 502 | echo before $ref
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| 503 | ref='val3'
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| 504 | echo after $ref
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| 505 | show-values
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| 506 |
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| 507 | ## STDOUT:
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| 508 | values: val
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| 509 | before val
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| 510 | after val2
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| 511 | values: val2
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| 512 | ---
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| 513 | before val2
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| 514 | after val3
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| 515 | values: val3
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| 516 | ## END
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| 517 |
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| 518 | #### ${!ref} and assoc array
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| 519 |
|
| 520 | show-values() {
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| 521 | echo values: ${A[@]}
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| 522 | }
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| 523 |
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| 524 | declare -A A=(['K']=val)
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| 525 | show-values
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| 526 |
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| 527 | declare ref='A["K"]'
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| 528 | echo ref ${!ref}
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| 529 |
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| 530 | key=K
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| 531 | declare ref='A[$key]'
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| 532 | echo ref ${!ref}
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| 533 |
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| 534 | ## STDOUT:
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| 535 | values: val
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| 536 | ref val
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| 537 | ref val
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| 538 | ## END
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| 539 |
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| 540 | #### printf -v and assoc array
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| 541 |
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| 542 | show-values() {
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| 543 | echo values: ${assoc[@]}
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| 544 | }
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| 545 |
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| 546 | declare -A assoc=(['K']=val)
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| 547 | show-values
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| 548 |
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| 549 | printf -v 'assoc["K"]' '/%s/' val2
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| 550 | show-values
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| 551 |
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| 552 | key=K
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| 553 | printf -v 'assoc[$key]' '/%s/' val3
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| 554 | show-values
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| 555 |
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| 556 | # Somehow bash doesn't allow this
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| 557 | #prefix=as
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| 558 | #printf -v '${prefix}soc[$key]' '/%s/' val4
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| 559 | #show-values
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| 560 |
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| 561 | ## STDOUT:
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| 562 | values: val
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| 563 | values: /val2/
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| 564 | values: /val3/
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| 565 | ## END
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| 566 |
|
| 567 | #### bash bug: (( A["$key"] = 1 )) doesn't work
|
| 568 | key='\'
|
| 569 | declare -A A
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| 570 | #A["$key"]=1
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| 571 |
|
| 572 | # Works in both
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| 573 | #A["$key"]=42
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| 574 |
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| 575 | # Works in bash only
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| 576 | #(( A[\$key] = 42 ))
|
| 577 |
|
| 578 | (( A["$key"] = 42 ))
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| 579 |
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| 580 | argv.py "${!A[@]}"
|
| 581 | argv.py "${A[@]}"
|
| 582 | ## STDOUT:
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| 583 | ['\\']
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| 584 | ['42']
|
| 585 | ## END
|
| 586 | ## BUG bash STDOUT:
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| 587 | []
|
| 588 | []
|
| 589 | ## END
|
| 590 |
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| 591 |
|
| 592 | #### Implicit increment of keys
|
| 593 | declare -a arr=( [30]=a b [40]=x y)
|
| 594 | argv.py "${!arr[@]}"
|
| 595 | argv.py "${arr[@]}"
|
| 596 |
|
| 597 | ## STDOUT:
|
| 598 | ['30', '31', '40', '41']
|
| 599 | ['a', 'b', 'x', 'y']
|
| 600 | ## END
|
| 601 |
|
| 602 | #### test -v assoc[key]
|
| 603 |
|
| 604 | typeset -A assoc
|
| 605 | assoc=([empty]='' [k]=v)
|
| 606 |
|
| 607 | echo 'no quotes'
|
| 608 |
|
| 609 | test -v assoc[empty]
|
| 610 | echo empty=$?
|
| 611 |
|
| 612 | test -v assoc[k]
|
| 613 | echo k=$?
|
| 614 |
|
| 615 | test -v assoc[nonexistent]
|
| 616 | echo nonexistent=$?
|
| 617 |
|
| 618 | echo
|
| 619 |
|
| 620 | # Now with quotes
|
| 621 | echo 'quotes'
|
| 622 |
|
| 623 | test -v assoc["empty"]
|
| 624 | echo empty=$?
|
| 625 |
|
| 626 | test -v assoc['k']
|
| 627 | echo k=$?
|
| 628 |
|
| 629 | test -v assoc['nonexistent']
|
| 630 | echo nonexistent=$?
|
| 631 |
|
| 632 | ## STDOUT:
|
| 633 | no quotes
|
| 634 | empty=0
|
| 635 | k=0
|
| 636 | nonexistent=1
|
| 637 |
|
| 638 | quotes
|
| 639 | empty=0
|
| 640 | k=0
|
| 641 | nonexistent=1
|
| 642 | ## END
|
| 643 |
|
| 644 | #### test -v with dynamic parsing
|
| 645 |
|
| 646 | typeset -A assoc
|
| 647 | assoc=([empty]='' [k]=v)
|
| 648 |
|
| 649 | key=empty
|
| 650 | test -v 'assoc[$key]'
|
| 651 | echo empty=$?
|
| 652 |
|
| 653 | key=k
|
| 654 | test -v 'assoc[$key]'
|
| 655 | echo k=$?
|
| 656 |
|
| 657 | key=nonexistent
|
| 658 | test -v 'assoc[$key]'
|
| 659 | echo nonexistent=$?
|
| 660 |
|
| 661 | ## STDOUT:
|
| 662 | empty=0
|
| 663 | k=0
|
| 664 | nonexistent=1
|
| 665 | ## END
|
| 666 |
|
| 667 | #### [[ -v assoc[key] ]]
|
| 668 |
|
| 669 | typeset -A assoc
|
| 670 | assoc=([empty]='' [k]=v)
|
| 671 |
|
| 672 | echo 'no quotes'
|
| 673 |
|
| 674 | [[ -v assoc[empty] ]]
|
| 675 | echo empty=$?
|
| 676 |
|
| 677 | [[ -v assoc[k] ]]
|
| 678 | echo k=$?
|
| 679 |
|
| 680 | [[ -v assoc[nonexistent] ]]
|
| 681 | echo nonexistent=$?
|
| 682 |
|
| 683 | echo
|
| 684 |
|
| 685 | # Now with quotes
|
| 686 | echo 'quotes'
|
| 687 |
|
| 688 | [[ -v assoc["empty"] ]]
|
| 689 | echo empty=$?
|
| 690 |
|
| 691 | [[ -v assoc['k'] ]]
|
| 692 | echo k=$?
|
| 693 |
|
| 694 | [[ -v assoc['nonexistent'] ]]
|
| 695 | echo nonexistent=$?
|
| 696 |
|
| 697 | echo
|
| 698 |
|
| 699 | echo 'vars'
|
| 700 |
|
| 701 | key=empty
|
| 702 | [[ -v assoc[$key] ]]
|
| 703 | echo empty=$?
|
| 704 |
|
| 705 | key=k
|
| 706 | [[ -v assoc[$key] ]]
|
| 707 | echo k=$?
|
| 708 |
|
| 709 | key=nonexistent
|
| 710 | [[ -v assoc[$key] ]]
|
| 711 | echo nonexistent=$?
|
| 712 |
|
| 713 | ## STDOUT:
|
| 714 | no quotes
|
| 715 | empty=0
|
| 716 | k=0
|
| 717 | nonexistent=1
|
| 718 |
|
| 719 | quotes
|
| 720 | empty=0
|
| 721 | k=0
|
| 722 | nonexistent=1
|
| 723 |
|
| 724 | vars
|
| 725 | empty=0
|
| 726 | k=0
|
| 727 | nonexistent=1
|
| 728 | ## END
|
| 729 |
|
| 730 | ## N-I mksh status: 1
|
| 731 | ## N-I mksh STDOUT:
|
| 732 | ## END
|
| 733 |
|
| 734 | #### [[ -v assoc[key] ]] syntax errors
|
| 735 |
|
| 736 | typeset -A assoc
|
| 737 | assoc=([empty]='' [k]=v)
|
| 738 |
|
| 739 | [[ -v assoc[empty] ]]
|
| 740 | echo empty=$?
|
| 741 |
|
| 742 | [[ -v assoc[k] ]]
|
| 743 | echo k=$?
|
| 744 |
|
| 745 | [[ -v assoc[k]z ]]
|
| 746 | echo typo=$?
|
| 747 |
|
| 748 | ## STDOUT:
|
| 749 | empty=0
|
| 750 | k=0
|
| 751 | typo=1
|
| 752 | ## END
|
| 753 |
|
| 754 |
|
| 755 | #### BashAssoc a+=()
|
| 756 |
|
| 757 | declare -A a=([apple]=red [orange]=orange)
|
| 758 | a+=([lemon]=yellow [banana]=yellow)
|
| 759 | echo "apple is ${a['apple']}"
|
| 760 | echo "orange is ${a['orange']}"
|
| 761 | echo "lemon is ${a['lemon']}"
|
| 762 | echo "banana is ${a['banana']}"
|
| 763 |
|
| 764 | ## STDOUT:
|
| 765 | apple is red
|
| 766 | orange is orange
|
| 767 | lemon is yellow
|
| 768 | banana is yellow
|
| 769 | ## END
|
| 770 |
|
| 771 |
|
| 772 | #### BashAssoc ${a[@]@Q}
|
| 773 |
|
| 774 | declare -A a=()
|
| 775 | a['symbol1']=\'\'
|
| 776 | a['symbol2']='"'
|
| 777 | a['symbol3']='()<>&|'
|
| 778 | a['symbol4']='[]*?'
|
| 779 | echo "[${a[@]@Q}]"
|
| 780 | echo "[${a[*]@Q}]"
|
| 781 |
|
| 782 | ## STDOUT:
|
| 783 | [$'\'\'' '"' '()<>&|' '[]*?']
|
| 784 | [$'\'\'' '"' '()<>&|' '[]*?']
|
| 785 | ## END
|
| 786 |
|
| 787 | ## OK bash STDOUT:
|
| 788 | ['[]*?' ''\'''\''' '"' '()<>&|']
|
| 789 | ['[]*?' ''\'''\''' '"' '()<>&|']
|
| 790 | ## END
|