1 ## compare_shells: zsh-5.9
2 ## our_shell: -
3
4 # Differences from bash:
5 # - literal syntax alternates key-value
6 # - (@k) syntax for keys. Although this is sort of like my ${@array} syntax
7 # for arrays.
8 # - zsh allows $a[$k], not just ${a[$k]}
9
10
11 #### TODO: SETUP should be shared
12 typeset -A a
13 a=(aa b foo bar a+1 c)
14
15 #### retrieve key
16 typeset -A a
17 a=(aa b foo bar a+1 c)
18 echo ${a[aa]}
19 ## stdout: b
20
21 #### set key
22 typeset -A a
23 a=(aa b foo bar a+1 c)
24 a[X]=XX
25 argv.py "${a[@]}"
26 # What order is this?
27 ## stdout: ['bar', 'b', 'c', 'XX']
28
29 #### iterate over keys
30 typeset -A assoc
31 assoc=(k1 v1 k2 v2 k3 v3)
32 for k in "${(@k)assoc}"; do
33 echo "$k: $assoc[$k]"
34 done
35 ## STDOUT:
36 k1: v1
37 k2: v2
38 k3: v3
39 ## END
40
41 #### iterate over both keys and values
42 typeset -A assoc
43 assoc=(k1 v1 k2 v2 k3 v3)
44 for k v ("${(@kv)assoc}"); do
45 echo "$k: $v"
46 done
47 ## STDOUT:
48 k1: v1
49 k2: v2
50 k3: v3
51 ## END
52
53 #### get length
54 typeset -A assoc
55 assoc=(k1 v1 k2 v2 k3 v3)
56 echo ${#assoc} ${#assoc[k1]}
57 ## stdout: 3 2
58
59 #### index by integer does not work
60 typeset -A assoc
61 assoc=(k1 v1 k2 v2 k3 v3)
62 argv.py "${assoc[1]}"
63 ## stdout: ['']