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