| 1 | ## compare_shells: zsh
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| 2 | ## our_shell: -
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| 3 |
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| 4 | # Differences from bash:
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| 5 | # - literal syntax alternates key-value
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| 6 | # - (@k) syntax for keys. Although this is sort of like my ${@array} syntax
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| 7 | # for arrays.
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| 8 | # - zsh allows $a[$k], not just ${a[$k]}
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| 9 |
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| 10 |
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| 11 | #### TODO: SETUP should be shared
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| 12 | typeset -A a
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| 13 | a=(aa b foo bar a+1 c)
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| 14 |
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| 15 | #### retrieve key
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| 16 | typeset -A a
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| 17 | a=(aa b foo bar a+1 c)
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| 18 | echo ${a[aa]}
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| 19 | ## stdout: b
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| 20 |
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| 21 | #### set key
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| 22 | typeset -A a
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| 23 | a=(aa b foo bar a+1 c)
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| 24 | a[X]=XX
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| 25 | argv.py "${a[@]}"
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| 26 | # What order is this?
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| 27 | ## stdout: ['bar', 'b', 'c', 'XX']
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| 28 |
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| 29 | #### iterate over keys
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| 30 | typeset -A assoc
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| 31 | assoc=(k1 v1 k2 v2 k3 v3)
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| 32 | for k in "${(@k)assoc}"; do
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| 33 | echo "$k: $assoc[$k]"
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| 34 | done
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| 35 | ## STDOUT:
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| 36 | k1: v1
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| 37 | k2: v2
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| 38 | k3: v3
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| 39 | ## END
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| 40 |
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| 41 | #### iterate over both keys and values
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| 42 | typeset -A assoc
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| 43 | assoc=(k1 v1 k2 v2 k3 v3)
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| 44 | for k v ("${(@kv)assoc}"); do
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| 45 | echo "$k: $v"
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| 46 | done
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| 47 | ## STDOUT:
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| 48 | k1: v1
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| 49 | k2: v2
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| 50 | k3: v3
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| 51 | ## END
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| 52 |
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| 53 | #### get length
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| 54 | typeset -A assoc
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| 55 | assoc=(k1 v1 k2 v2 k3 v3)
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| 56 | echo ${#assoc} ${#assoc[k1]}
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| 57 | ## stdout: 3 2
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| 58 |
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| 59 | #### index by integer does not work
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| 60 | typeset -A assoc
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| 61 | assoc=(k1 v1 k2 v2 k3 v3)
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| 62 | argv.py "${assoc[1]}"
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| 63 | ## stdout: ['']
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