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