1	#!/usr/bin/env bash
2
3	### implicit for loop
4	# This is like "for i in $@".
5	func() {
6	for i; do
7	echo $i
8	done
9	}
10	func 1 2 3
11	# stdout-json: "1\n2\n3\n"
12
13	### empty for loop (has "in")
14	set -- 1 2 3
15	for i in ; do
16	echo $i
17	done
18	# stdout-json: ""
19
20	### for loop with invalid identifier
21	# should be compile time error, but runtime error is OK too
22	for - in a b c; do
23	echo hi
24	done
25	# stdout-json: ""
26	# status: 2
27	# OK bash/mksh status: 1
28
29	### Tilde expansion within for loop
30	HOME=/home/bob
31	for name in ~/src ~/git; do
32	echo $name
33	done
34	# stdout-json: "/home/bob/src\n/home/bob/git\n"
35
36	### Brace Expansion within Array
37	for i in -{a,b} {c,d}-; do
38	echo $i
39	done
40	# stdout-json: "-a\n-b\nc-\nd-\n"
41	# N-I dash stdout-json: "-{a,b}\n{c,d}-\n"
42
43	### using loop var outside loop
44	func() {
45	for i in a b c; do
46	echo $i
47	done
48	echo $i
49	}
50	func
51	# status: 0
52	# stdout-json: "a\nb\nc\nc\n"
53
54	### continue
55	for i in a b c; do
56	echo $i
57	if test $i = b; then
58	continue
59	fi
60	echo $i
61	done
62	# status: 0
63	# stdout-json: "a\na\nb\nc\nc\n"
64
65	### break
66	for i in a b c; do
67	echo $i
68	if test $i = b; then
69	break
70	fi
71	done
72	# status: 0
73	# stdout-json: "a\nb\n"
74
75	### continue at top level is error
76	# NOTE: bash and mksh both print warnings, but don't exit with an error.
77	continue
78	echo bad
79	# N-I bash/dash/mksh status: 0
80	# N-I bash/dash/mksh stdout: bad
81	# stdout-json: ""
82	# status: 1
83
84	### break at top level is error
85	break
86	echo bad
87	# N-I bash/dash/mksh status: 0
88	# N-I bash/dash/mksh stdout: bad
89	# stdout-json: ""
90	# status: 1
91
92	### while in while condition
93	# This is a consequence of the grammar
94	while while true; do echo cond; break; done
95	do
96	echo body
97	break
98	done
99	# stdout-json: "cond\nbody\n"
100
101	### while in pipe
102	i=0
103	find tests/ | while read $path; do
104	i=$((i+1))
105	#echo $i
106	done
107	# This Because while loop was in a subshell
108	echo $i
109	# stdout: 0
110
111	### while in pipe with subshell
112	i=0
113	find . -maxdepth 1 -name INSTALL.txt -o -name LICENSE.txt | ( while read path; do
114	i=$((i+1))
115	#echo $i
116	done
117	echo $i )
118	# stdout: 2
119
120	### until loop
121	# This is just the opposite of while? while ! cond?
122	until false; do
123	echo hi
124	break
125	done
126	# stdout: hi