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	[[ --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	choice1='help'
18	choice2='verbose'
19	[[ --verbose == --@($choice1|$choice2) ]] && echo TRUE
20	[[ --oops == --@($choice1|$choice2) ]] || echo FALSE
21	## STDOUT:
22	TRUE
23	FALSE
24	## END
25
26	#### extglob in variable
27	shopt -s extglob
28	g=--@(help|verbose)
29	quoted='--@(help|verbose)'
30	[[ --help == $g ]] && echo TRUE
31	[[ --verbose == $g ]] && echo TRUE
32	[[ -- == $g ]] || echo FALSE
33	[[ --help == $q ]] || echo FALSE
34	[[ -- == $q ]] || echo FALSE
35	## STDOUT:
36	TRUE
37	TRUE
38	FALSE
39	FALSE
40	FALSE
41	## END
42	## N-I mksh STDOUT:
43	FALSE
44	FALSE
45	FALSE
46	## END
47
48	#### nested @()
49	shopt -s extglob
50	pat='--@(help|verbose|no-@(long|short)-option)'
51	[[ --no-long-option == $pat ]] && echo TRUE
52	[[ --no-short-option == $pat ]] && echo TRUE
53	[[ --help == $pat ]] && echo TRUE
54	[[ --oops == $pat ]] || echo FALSE
55	## STDOUT:
56	TRUE
57	TRUE
58	TRUE
59	FALSE
60	## END
61	## BUG mksh STDOUT:
62	FALSE
63	## END
64
65	#### nested @() with quotes and vars
66	shopt -s extglob
67	prefix=no
68	[[ --no-long-option == --@(help|verbose|$prefix-@(long|short)-'option') ]] &&
69	echo TRUE
70	## STDOUT:
71	TRUE
72	## END
73
74	#### ? matches 0 or 1
75	[[ -- == --?(help|verbose) ]] && echo TRUE
76	[[ --oops == --?(help|verbose) ]] || echo FALSE
77	## STDOUT:
78	TRUE
79	FALSE
80	## END
81
82	#### + matches 1 or more
83	[[ --helphelp == --+(help|verbose) ]] && echo TRUE
84	[[ -- == --+(help|verbose) ]] || echo FALSE
85	## STDOUT:
86	TRUE
87	FALSE
88	## END
89
90	#### * matches 0 or more
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	[[ foofoo == *(foo) ]] && echo TRUE
100	[[ foofoo == +(foo) ]] && echo TRUE
101	## STDOUT:
102	TRUE
103	TRUE
104	## END
105
106	#### ! matches none
107	[[ --oops == --!(help|verbose) ]] && echo TRUE
108	[[ --help == --!(help|verbose) ]] || echo FALSE
109	## STDOUT:
110	TRUE
111	FALSE
112	## END
113
114	#### match is anchored
115	[[ foo_ == @(foo) ]] || echo FALSE
116	[[ _foo == @(foo) ]] || echo FALSE
117	[[ foo == @(foo) ]] && echo TRUE
118	## STDOUT:
119	FALSE
120	FALSE
121	TRUE
122	## END
123
124	#### repeated match is anchored
125	[[ foofoo_ == +(foo) ]] || echo FALSE
126	[[ _foofoo == +(foo) ]] || echo FALSE
127	[[ foofoo == +(foo) ]] && echo TRUE
128	## STDOUT:
129	FALSE
130	FALSE
131	TRUE
132	## END
133
134	#### repetition with glob
135	# NOTE that * means two different things here
136	[[ foofoo_foo__foo___ == *(foo*) ]] && echo TRUE
137	[[ Xoofoo_foo__foo___ == *(foo*) ]] || echo FALSE
138	## STDOUT:
139	TRUE
140	FALSE
141	## END
142
143	#### No brace expansion in ==
144	[[ --X{a,b}X == --@(help|X{a,b}X) ]] && echo TRUE
145	[[ --oops == --@(help|X{a,b}X) ]] || echo FALSE
146	## STDOUT:
147	TRUE
148	FALSE
149	## END
150
151	#### adjacent extglob
152	[[ --help == @(--|++)@(help|verbose) ]] && echo TRUE
153	[[ ++verbose == @(--|++)@(help|verbose) ]] && echo TRUE
154	## STDOUT:
155	TRUE
156	TRUE
157	## END
158
159	#### nested extglob
160	[[ --help == --@(help|verbose=@(1|2)) ]] && echo TRUE
161	[[ --verbose=1 == --@(help|verbose=@(1|2)) ]] && echo TRUE
162	[[ --verbose=2 == --@(help|verbose=@(1|2)) ]] && echo TRUE
163	[[ --verbose == --@(help|verbose=@(1|2)) ]] || echo FALSE
164	## STDOUT:
165	TRUE
166	TRUE
167	TRUE
168	FALSE
169	## END
170
171	#### extglob empty string
172	shopt -s extglob
173	[[ '' == @(foo|bar) ]] || echo FALSE
174	[[ '' == @(foo||bar) ]] && echo TRUE
175	## STDOUT:
176	FALSE
177	TRUE
178	## END
179
180	#### extglob empty pattern
181	shopt -s extglob
182	[[ '' == @() ]] && echo TRUE
183	[[ '' == @(||) ]] && echo TRUE
184	[[ X == @() ]] || echo FALSE
185	[[ '|' == @(||) ]] || echo FALSE
186	## STDOUT:
187	TRUE
188	TRUE
189	FALSE
190	FALSE
191	## END
192
193	#### case with extglob
194	shopt -s extglob
195	for word in --help --verbose --unmatched -- -zxzx -; do
196	case $word in
197	--@(help|verbose) )
198	echo A
199	continue
200	;;
201	( --?(b|c) )
202	echo B
203	continue
204	;;
205	( -+(x|z) )
206	echo C
207	continue
208	;;
209	( -*(x|z) )
210	echo D
211	continue
212	;;
213	*)
214	echo U
215	continue
216	;;
217	esac
218	done
219	## STDOUT:
220	A
221	A
222	U
223	B
224	C
225	D
226	## END
227
228	#### Without shopt -s extglob
229	empty=''
230	str='x'
231	[[ $empty == !($str) ]] && echo TRUE # test glob match
232	[[ $str == !($str) ]] || echo FALSE
233	## STDOUT:
234	TRUE
235	FALSE
236	## END
237
238	#### Turning extglob on changes the meaning of [[ !(str) ]] in bash
239	empty=''
240	str='x'
241	[[ !($empty) ]] && echo TRUE # test if $empty is empty
242	[[ !($str) ]] || echo FALSE # test if $str is empty
243	shopt -s extglob # mksh doesn't have this
244	[[ !($empty) ]] && echo TRUE # negated glob
245	[[ !($str) ]] && echo TRUE # negated glob
246	## STDOUT:
247	TRUE
248	FALSE
249	TRUE
250	TRUE
251	## END
252	## OK osh/mksh STDOUT:
253	TRUE
254	TRUE
255	TRUE
256	## END
257
258	#### With extglob on, !($str) on the left or right of == has different meanings
259	shopt -s extglob
260	empty=''
261	str='x'
262	[[ 1 == !($str) ]] && echo TRUE # glob match
263	[[ !($str) == 1 ]] || echo FALSE # test if empty
264	# NOTE: There cannot be a space between ! and (?
265	## STDOUT:
266	TRUE
267	FALSE
268	## END
269
270	#### extglob inside arg word
271	shopt -s extglob
272	[[ foo == @(foo|bar) ]] && echo TRUE
273	[[ foo == ${unset:-@(foo|bar)} ]] && echo TRUE
274	[[ fo == ${unset:-@(foo|bar)} ]] || echo FALSE
275	## STDOUT:
276	TRUE
277	TRUE
278	FALSE
279	## END
280	## BUG mksh STDOUT:
281	TRUE
282	FALSE
283	## END
284
285	#### extglob is not detected in regex!
286	shopt -s extglob
287	[[ foo =~ ^@(foo|bar)$ ]] || echo FALSE
288	## STDOUT:
289	FALSE
290	## END
291	## N-I mksh stdout-json: ""
292	## N-I mksh status: 1