blob: 4fe1dfaa19304099a3532cafc27129d99cd82083 (
plain)
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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
|
# 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/>.
#
: ${HOME:=/}
# works right
echo ab$(echo mnop)yz
# works right
echo ab$(echo mnop
)yz
#
# works right
echo $(echo ab
)
# works right
echo $(
)
echo $()
echo ab$()cd
echo ab$( )cd
echo $(case a in (a) echo sh_352.26ax; esac )
echo $(case a in (a) echo sh_352.26ay; esac)
echo $((echo sh_352.25a);(echo sh_352.25b))
echo $(echo sh_352.27 ')' ")" \)
# ) comment
)
echo $(
echo abc # a comment with )
)
echo $(
cat <<eof
here doc with )
eof
)
echo $(
echo ')'
)
unset x
x=$(cat <<"EOF"
bad' syntax
EOF
)
echo "$x"
unset x
echo $(for f in \); do echo a; done )
echo $(case a in a) echo sh_352.26a; esac )
echo $(case a in a) echo sh_352.26a; esac)
echo $(case a in
(a) echo sh_352.26
;;
esac
)
echo $(case a in
a) echo sh_352.26
;;
esac
)
echo $(case a in
a) echo sh_352.26
;;
esac
)
echo $(( 4<(2+3) ? 1 : 32))
echo $(cat << end
sh_352.28 )
end
)
echo $(cat <<- end
sh_352.28 )
end
)
k=$(case x in x) echo k;; esac)
echo $k
x=$(
case $(ls) in
example) echo foobix;;
esac
)
echo $( echo ab\
cd)
echo `echo ab
cd`
echo `echo ab #xyz
cd`
echo "$(echo abcde)
"
recho "$(echo abcde)
"
echo $(echo abcde)\
foo
recho $(echo abcde)\
foo
recho "wx$(echo abcde)yz"
recho "$(echo abcde)"
echo $(cat <<eof
'
eof
)
echo after 1
echo $(cat <<\eof
'
eof
)
echo after 2
echo "$(cat <<\eof
'
eof
)"
echo after 3
echo "$(cat <<\eof
`
eof
)"
echo after 4
echo $(
cat << ')'
hello
)
)
echo after 5
echo $(cat <<'eof'
'
eof
)
echo after 6
echo $(
case x in x) echo x;; esac
)
echo $(
case x in x) echo x;; esac # followed by a comment
)
echo $(
case x in (x) echo x;; esac
)
echo $(
echo 'quoted )'
)
echo $(
echo comment # with )
)
echo $(
cat <<\eof
here-doc with )
eof
)
echo $(
cat <<\eof
here-doc with \()
eof
)
echo $(
cat <<\)
here-doc terminated with a parenthesis
)
)
echo $(
cat <<\eof
' # or a single back- or doublequote
eof
)
echo $(
echo line terminated with a backslash # \
)
${THIS_SH} ./comsub-posix1.sub
${THIS_SH} ./comsub-posix2.sub
${THIS_SH} ./comsub-posix3.sub
# produced a parse error through bash-4.0-beta2
: $(echo foo)"
"
# produced a parse error through bash-4.1
unset x
x=$(
echo yes
# a comment with " ' \
)
echo $x
unset x
# fixed after bash-4.0 released
: $(case a in a) echo ;; # comment
esac)
# fixed after bash-4.3 released
testing=$(
echo test | while read line; do
case $line in
test) echo saw test ;;
*) echo other ;;
esac
done
)
# recommended to be parsed as a nested comsub instead of arithsub
echo $(( echo ab cde ) )
|