1	# Test extended glob matching with [[, case, etc.
2
3	#### @ matches exactly one
4	shopt -s extglob # needed for Oil, not bash
5	[[ --verbose == --@(help|verbose) ]] && echo TRUE
6	[[ --oops == --@(help|verbose) ]] || echo FALSE
7	## STDOUT:
8	TRUE
9	FALSE
10	## END
11
12	#### @() with variable arms
13	shopt -s extglob # needed for Oil, not bash
14	choice1='help'
15	choice2='verbose'
16	[[ --verbose == --@($choice1|$choice2) ]] && echo TRUE
17	[[ --oops == --@($choice1|$choice2) ]] || echo FALSE
18	## STDOUT:
19	TRUE
20	FALSE
21	## END
22
23	#### extglob in variable
24	shopt -s extglob
25	g=--@(help|verbose) # this syntax requires extglob in bash!!
26	quoted='--@(help|verbose)'
27	[[ --help == $g ]] && echo TRUE
28	[[ --verbose == $g ]] && echo TRUE
29	[[ -- == $g ]] || echo FALSE
30	[[ --help == $q ]] || echo FALSE
31	[[ -- == $q ]] || echo FALSE
32	## STDOUT:
33	TRUE
34	TRUE
35	FALSE
36	FALSE
37	FALSE
38	## END
39	## N-I mksh STDOUT:
40	FALSE
41	FALSE
42	FALSE
43	## END
44
45	#### nested @()
46	shopt -s extglob
47	pat='--@(help|verbose|no-@(long|short)-option)'
48	[[ --no-long-option == $pat ]] && echo TRUE
49	[[ --no-short-option == $pat ]] && echo TRUE
50	[[ --help == $pat ]] && echo TRUE
51	[[ --oops == $pat ]] || echo FALSE
52	## STDOUT:
53	TRUE
54	TRUE
55	TRUE
56	FALSE
57	## END
58	## BUG mksh STDOUT:
59	FALSE
60	## END
61
62	#### nested @() with quotes and vars
63	shopt -s extglob
64	prefix=no
65	[[ --no-long-option == --@(help|verbose|$prefix-@(long|short)-'option') ]] &&
66	echo TRUE
67	## STDOUT:
68	TRUE
69	## END
70
71	#### ? matches 0 or 1
72	shopt -s extglob # needed for Oil, not bash
73	[[ -- == --?(help|verbose) ]] && echo TRUE
74	[[ --oops == --?(help|verbose) ]] || echo FALSE
75	## STDOUT:
76	TRUE
77	FALSE
78	## END
79
80	#### + matches 1 or more
81	shopt -s extglob # needed for Oil, not bash
82	[[ --helphelp == --+(help|verbose) ]] && echo TRUE
83	[[ -- == --+(help|verbose) ]] || echo FALSE
84	## STDOUT:
85	TRUE
86	FALSE
87	## END
88
89	#### * matches 0 or more
90	shopt -s extglob # needed for Oil, not bash
91	[[ -- == --*(help|verbose) ]] && echo TRUE
92	[[ --oops == --*(help|verbose) ]] || echo FALSE
93	## STDOUT:
94	TRUE
95	FALSE
96	## END
97
98	#### simple repetition with *(foo) and +(Foo)
99	shopt -s extglob # needed for Oil, not bash
100	[[ foofoo == *(foo) ]] && echo TRUE
101	[[ foofoo == +(foo) ]] && echo TRUE
102	## STDOUT:
103	TRUE
104	TRUE
105	## END
106
107	#### ! matches none
108	shopt -s extglob # needed for Oil, not bash
109	[[ --oops == --!(help|verbose) ]] && echo TRUE
110	[[ --help == --!(help|verbose) ]] || echo FALSE
111	## STDOUT:
112	TRUE
113	FALSE
114	## END
115
116	#### match is anchored
117	shopt -s extglob # needed for Oil, not bash
118	[[ foo_ == @(foo) ]] || echo FALSE
119	[[ _foo == @(foo) ]] || echo FALSE
120	[[ foo == @(foo) ]] && echo TRUE
121	## STDOUT:
122	FALSE
123	FALSE
124	TRUE
125	## END
126
127	#### repeated match is anchored
128	shopt -s extglob # needed for Oil, not bash
129	[[ foofoo_ == +(foo) ]] || echo FALSE
130	[[ _foofoo == +(foo) ]] || echo FALSE
131	[[ foofoo == +(foo) ]] && echo TRUE
132	## STDOUT:
133	FALSE
134	FALSE
135	TRUE
136	## END
137
138	#### repetition with glob
139	shopt -s extglob # needed for Oil, not bash
140
141	# NOTE that * means two different things here
142	[[ foofoo_foo__foo___ == *(foo*) ]] && echo TRUE
143	[[ Xoofoo_foo__foo___ == *(foo*) ]] || echo FALSE
144	## STDOUT:
145	TRUE
146	FALSE
147	## END
148
149	#### No brace expansion in ==
150	shopt -s extglob # needed for Oil, not bash
151
152	[[ --X{a,b}X == --@(help|X{a,b}X) ]] && echo TRUE
153	[[ --oops == --@(help|X{a,b}X) ]] || echo FALSE
154	## STDOUT:
155	TRUE
156	FALSE
157	## END
158
159	#### adjacent extglob
160	shopt -s extglob # needed for Oil, not bash
161
162	[[ --help == @(--|++)@(help|verbose) ]] && echo TRUE
163	[[ ++verbose == @(--|++)@(help|verbose) ]] && echo TRUE
164	## STDOUT:
165	TRUE
166	TRUE
167	## END
168
169	#### nested extglob
170	shopt -s extglob # needed for Oil, not bash
171
172	[[ --help == --@(help|verbose=@(1|2)) ]] && echo TRUE
173	[[ --verbose=1 == --@(help|verbose=@(1|2)) ]] && echo TRUE
174	[[ --verbose=2 == --@(help|verbose=@(1|2)) ]] && echo TRUE
175	[[ --verbose == --@(help|verbose=@(1|2)) ]] || echo FALSE
176	## STDOUT:
177	TRUE
178	TRUE
179	TRUE
180	FALSE
181	## END
182
183	#### extglob empty string
184	shopt -s extglob
185	[[ '' == @(foo|bar) ]] || echo FALSE
186	[[ '' == @(foo||bar) ]] && echo TRUE
187	## STDOUT:
188	FALSE
189	TRUE
190	## END
191
192	#### extglob empty pattern
193	shopt -s extglob
194	[[ '' == @() ]] && echo TRUE
195	[[ '' == @(||) ]] && echo TRUE
196	[[ X == @() ]] || echo FALSE
197	[[ '|' == @(||) ]] || echo FALSE
198	## STDOUT:
199	TRUE
200	TRUE
201	FALSE
202	FALSE
203	## END
204
205	#### case with extglob
206	shopt -s extglob
207	for word in --help --verbose --unmatched -- -zxzx -; do
208	case $word in
209	--@(help|verbose) )
210	echo A
211	continue
212	;;
213	( --?(b|c) )
214	echo B
215	continue
216	;;
217	( -+(x|z) )
218	echo C
219	continue
220	;;
221	( -*(x|z) )
222	echo D
223	continue
224	;;
225	*)
226	echo U
227	continue
228	;;
229	esac
230	done
231	## STDOUT:
232	A
233	A
234	U
235	B
236	C
237	D
238	## END
239
240	#### [[ $x == !($str) ]]
241	shopt -s extglob
242	empty=''
243	str='x'
244	[[ $empty == !($str) ]] && echo TRUE # test glob match
245	[[ $str == !($str) ]] || echo FALSE
246	## STDOUT:
247	TRUE
248	FALSE
249	## END
250
251	#### Turning extglob on changes the meaning of [[ !(str) ]] in bash
252	empty=''
253	str='x'
254	[[ !($empty) ]] && echo TRUE # test if $empty is empty
255	[[ !($str) ]] || echo FALSE # test if $str is empty
256	shopt -s extglob # mksh doesn't have this
257	[[ !($empty) ]] && echo TRUE # negated glob
258	[[ !($str) ]] && echo TRUE # negated glob
259	## STDOUT:
260	TRUE
261	FALSE
262	TRUE
263	TRUE
264	## END
265	## OK osh/mksh STDOUT:
266	TRUE
267	TRUE
268	TRUE
269	## END
270
271	#### With extglob on, !($str) on the left or right of == has different meanings
272	shopt -s extglob
273	empty=''
274	str='x'
275	[[ 1 == !($str) ]] && echo TRUE # glob match
276	[[ !($str) == 1 ]] || echo FALSE # test if empty
277	# NOTE: There cannot be a space between ! and (?
278	## STDOUT:
279	TRUE
280	FALSE
281	## END
282
283	#### extglob inside arg word
284	shopt -s extglob
285	[[ foo == @(foo|bar) ]] && echo TRUE
286	[[ foo == ${unset:-@(foo|bar)} ]] && echo TRUE
287	[[ fo == ${unset:-@(foo|bar)} ]] || echo FALSE
288	## STDOUT:
289	TRUE
290	TRUE
291	FALSE
292	## END
293	## BUG mksh STDOUT:
294	TRUE
295	FALSE
296	## END
297
298	#### extglob is not detected in regex!
299	shopt -s extglob
300	[[ foo =~ ^@(foo|bar)$ ]] || echo FALSE
301	## STDOUT:
302	FALSE
303	## END
304	## N-I mksh stdout-json: ""
305	## N-I mksh status: 1
306
307
308	#### regular glob of single unicode char
309	shopt -s extglob
310	[[ __a__ == __?__ ]]
311	echo $?
312	[[ __μ__ == __?__ ]]
313	echo $?
314	## STDOUT:
315	0
316	0
317	## END
318	## BUG mksh STDOUT:
319	0
320	1
321	## END
322
323	#### extended glob of single unicode char
324	shopt -s extglob
325	[[ __a__ == @(__?__) ]]
326	echo $?
327	[[ __μ__ == @(__?__) ]]
328	echo $?
329	## STDOUT:
330	0
331	0
332	## END
333	## BUG mksh STDOUT:
334	0
335	1
336	## END
337
338	#### Extended glob in ${x//pat/replace}
339	# not supported in OSH due to GlobToERE() strategy for positional info
340
341	shopt -s extglob
342	x=foo.py
343	echo ${x//@(?.py)/Z}
344	## STDOUT:
345	foZ
346	## END