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