1	#!/bin/bash
2	#
3	# Tests that explore parsing corner cases.
4
5
6	### Bad env name: hyphen
7	# bash and dash disagree on exit code.
8	export FOO-BAR=foo
9	# status: 2
10	# OK bash/mksh status: 1
11
12	### Bad env name: period
13	export FOO.BAR=foo
14	# status: 2
15	# OK bash/mksh status: 1
16
17	### Bad var sub
18	echo $%
19	# stdout: $%
20
21	### Bad braced var sub -- not allowed
22	echo ${%}
23	# status: 2
24	# OK bash/mksh status: 1
25
26	### Bad var sub caught at parse time
27	if test -f /; then
28	echo ${%}
29	else
30	echo ok
31	fi
32	# status: 2
33	# BUG dash/bash/mksh status: 0
34
35	### Pipe with while
36	seq 3 | while read i
37	do
38	echo ".$i"
39	done
40	# stdout-json: ".1\n.2\n.3\n"
41
42	### Length of length of ARGS!
43	func() { echo ${##}; }; func 0 1 2 3 4 5 6 7 8
44	# stdout: 1
45
46	### Length of length of ARGS! 2 digit
47	func() { echo ${##}; }; func 0 1 2 3 4 5 6 7 8 9
48	# stdout: 2
49
50	### $1 .. $9 are scoped, while $0 is not
51	func() { echo $0 $1 $2 | sed -e 's/.*sh/sh/'; }; func a b
52	# stdout: sh a b
53
54	### Chained && and || -- || has higher precedence?
55	# It looks like expr 2 || expr 3 is evaluated at once.
56	expr 1 && expr 2 || expr 3 && expr 4; echo "result $?"
57	# stdout-json "1\n2\n4\nresult 0\n"
58
59	### Pipeline comments
60	echo abcd | # input
61	# blank line
62	tr a-z A-Z # transform
63	# stdout: ABCD
64
65	### Command block
66	{ which ls; }
67	# stdout: /bin/ls
68
69	### { is its own word, needs a space
70	# dash gives 127; bash gives 2
71	{ls; }
72	# parse time error because of }
73	# status: 2
74	# runtime error
75	# OK mksh status: 1
76	# command not found for dash
77	# OK dash status: 127
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