1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
oIFS=$IFS
set -- ''
unset v
recho ${v= ''}
recho $v
unset v
recho ${v=''}
recho $v
unset v
recho ${v= $*}
recho $v
unset v
recho ${v=$*}
recho $v
unset v
recho ${v='' }
recho $v
unset v
recho ${v= '' }
recho $v
unset v
recho ${v=$* }
recho $v
unset v
recho ${v= $* }
recho $v
unset IFS
unset v
recho ${v= ''}
recho $v
unset v
recho ${v=''}
recho $v
unset v
recho ${v= $*}
recho $v
unset v
recho ${v=$*}
recho $v
unset v
recho ${v='' }
recho $v
unset v
recho ${v= '' }
recho $v
unset v
recho ${v=$* }
recho $v
unset v
recho ${v= $* }
recho $v
unset -v v
IFS=$oIFS
# This shouldn't output anything
set -- '' ''
unset -v v
recho ${v=$*}
unset -v v
recho ${v= $*}
unset -v v
recho ${v=$* }
unset -v v
recho ${v= $* }
unset -v v IFS
recho ${v=$*}
unset -v v
recho ${v= $*}
unset -v v
recho ${v= $* }
unset -v v
recho ${v= $*}
|
