1	#
2	# Constructs borrowed from ksh. Hm I didn't realize zsh also implements these!
3	# mksh implements most too.
4
5	#### C-style for loop
6	n=10
7	for ((a=1; a <= n ; a++)) # Double parentheses, and naked 'n'
8	do
9	if test $a = 3; then
10	continue
11	fi
12	if test $a = 6; then
13	break
14	fi
15	echo $a
16	done
17	## status: 0
18	## STDOUT:
19	1
20	2
21	4
22	5
23	## END
24
25	#### For loop with and without semicolon
26	for ((a=1; a <= 3; a++)); do
27	echo $a
28	done
29	for ((a=1; a <= 3; a++)) do
30	echo $a
31	done
32	## status: 0
33	## STDOUT:
34	1
35	2
36	3
37	1
38	2
39	3
40	## END
41
42	#### Accepts { } syntax too
43	for ((a=1; a <= 3; a++)) {
44	echo $a
45	}
46	## STDOUT:
47	1
48	2
49	3
50	## END
51
52	#### Empty init
53	i=1
54	for (( ;i < 4; i++ )); do
55	echo $i
56	done
57	## status: 0
58	## STDOUT:
59	1
60	2
61	3
62	## END
63
64	#### Empty init and cond
65	i=1
66	for (( ; ; i++ )); do
67	if test $i = 4; then
68	break
69	fi
70	echo $i
71	done
72	## status: 0
73	## STDOUT:
74	1
75	2
76	3
77	## END
78
79	#### Infinite loop with ((;;))
80	a=1
81	for (( ; ; )); do
82	if test $a = 4; then
83	break
84	fi
85	echo $((a++))
86	done
87	## status: 0
88	## STDOUT:
89	1
90	2
91	3
92	## END