1	#### not, and, or
2
3	var a = not true
4	echo $a
5	var b = true and false
6	echo $b
7	var c = true or false
8	echo $c
9
10	## STDOUT:
11	false
12	false
13	true
14	## END
15
16
17	#### and-or chains for typed data
18
19	python2 -c 'print(None or "s")'
20	python2 -c 'print(None and "s")'
21
22	python2 -c 'print("x" or "y")'
23	python2 -c 'print("x" and "y")'
24
25	python2 -c 'print("" or "y")'
26	python2 -c 'print("" and "y")'
27
28	python2 -c 'print(42 or 0)'
29	python2 -c 'print(42 and 0)'
30
31	python2 -c 'print(0 or 42)'
32	python2 -c 'print(0 and 42)'
33
34	python2 -c 'print(0.0 or 0.5)'
35	python2 -c 'print(0.0 and 0.5)'
36
37	python2 -c 'print(["a"] or [])'
38	python2 -c 'print(["a"] and [])'
39
40	python2 -c 'print({"d": 1} or {})'
41	python2 -c 'print({"d": 1} and {})'
42
43	python2 -c 'print(0 or 0.0 or False or [] or {} or "OR")'
44	python2 -c 'print(1 and 1.0 and True and [5] and {"d":1} and "AND")'
45
46	echo ---
47
48	json write (null or "s")
49	json write (null and "s")
50
51	echo $["x" or "y"]
52	echo $["x" and "y"]
53
54	echo $["" or "y"]
55	echo $["" and "y"]
56
57	echo $[42 or 0]
58	echo $[42 and 0]
59
60	echo $[0 or 42]
61	echo $[0 and 42]
62
63	echo $[0.0 or 0.5]
64	echo $[0.0 and 0.5]
65
66	json write --pretty=false (["a"] or [])
67	json write --pretty=false (["a"] and [])
68
69	json write --pretty=false ({"d": 1} or {})
70	json write --pretty=false ({"d": 1} and {})
71
72	echo $[0 or 0.0 or false or [] or {} or "OR"]
73	echo $[1 and 1.0 and true and [5] and {"d":1} and "AND"]
74
75	declare -a array=(1 2 3)
76	json write --pretty=false (array or 'yy')
77
78	declare -A assoc=([k]=v)
79	json write --pretty=false (assoc or 'zz')
80
81	## STDOUT:
82	s
83	None
84	x
85	y
86	y
87
88	42
89	0
90	42
91	0
92	0.5
93	0.0
94	['a']
95	[]
96	{'d': 1}
97	{}
98	OR
99	AND
100	---
101	"s"
102	null
103	x
104	y
105	y
106
107	42
108	0
109	42
110	0
111	0.5
112	0.0
113	["a"]
114	[]
115	{"d":1}
116	{}
117	OR
118	AND
119	["1","2","3"]
120	{"k":"v"}
121	## END
122
123	#### x if b else y
124	var b = true
125	var i = 42
126	var t = i+1 if b else i-1
127	echo $t
128	var f = i+1 if false else i-1
129	echo $f
130	## STDOUT:
131	43
132	41
133	## END
134