1	#!/usr/bin/env bash
2	#
3	# Differences from bash:
4	# - literal syntax alternates key-value
5	# - (@k) syntax for keys. Although this is sort of like my ${@array} syntax
6	# for arrays.
7	# - zsh allows $a[$k], not just ${a[$k]}
8
9
10	#### TODO: SETUP should be shared
11	typeset -A a
12	a=(aa b foo bar a+1 c)
13
14	#### retrieve key
15	typeset -A a
16	a=(aa b foo bar a+1 c)
17	echo ${a[aa]}
18	## stdout: b
19
20	#### set key
21	typeset -A a
22	a=(aa b foo bar a+1 c)
23	a[X]=XX
24	argv.py "${a[@]}"
25	# What order is this?
26	## stdout: ['bar', 'b', 'c', 'XX']
27
28	#### iterate over keys
29	typeset -A assoc
30	assoc=(k1 v1 k2 v2 k3 v3)
31	for k in "${(@k)assoc}"; do
32	echo "$k: $assoc[$k]"
33	done
34	## stdout-json: "k1: v1\nk2: v2\nk3: v3\n"
35
36	#### iterate over both keys and values
37	typeset -A assoc
38	assoc=(k1 v1 k2 v2 k3 v3)
39	for k v ("${(@kv)assoc}"); do
40	echo "$k: $v"
41	done
42	## stdout-json: "k1: v1\nk2: v2\nk3: v3\n"
43
44	#### get length
45	typeset -A assoc
46	assoc=(k1 v1 k2 v2 k3 v3)
47	echo ${#assoc} ${#assoc[k1]}
48	## stdout: 3 2
49
50	#### index by integer does not work
51	typeset -A assoc
52	assoc=(k1 v1 k2 v2 k3 v3)
53	argv.py "${assoc[1]}"
54	## stdout: ['']