summaryrefslogtreecommitdiff
path: root/regex/tests
blob: 2886449d519e72bcfcdd3faed595ea6757310840 (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
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
# regular expression test set
# Lines are at least three fields, separated by one or more tabs.  "" stands
# for an empty field.  First field is an RE.  Second field is flags.  If
# C flag given, regcomp() is expected to fail, and the third field is the
# error name (minus the leading REG_).
#
# Otherwise it is expected to succeed, and the third field is the string to
# try matching it against.  If there is no fourth field, the match is
# expected to fail.  If there is a fourth field, it is the substring that
# the RE is expected to match.  If there is a fifth field, it is a comma-
# separated list of what the subexpressions should match, with - indicating
# no match for that one.  In both the fourth and fifth fields, a (sub)field
# starting with @ indicates that the (sub)expression is expected to match
# a null string followed by the stuff after the @; this provides a way to
# test where null strings match.  The character `N' in REs and strings
# is newline, `S' is space, `T' is tab, `Z' is NUL.
#
# The full list of flags:
#	-	placeholder, does nothing
#	b	RE is a BRE, not an ERE
#	&	try it as both an ERE and a BRE
#	C	regcomp() error expected, third field is error name
#	i	REG_ICASE
#	m	("mundane") REG_NOSPEC
#	s	REG_NOSUB (not really testable)
#	n	REG_NEWLINE
#	^	REG_NOTBOL
#	$	REG_NOTEOL
#	#	REG_STARTEND (see below)
#	p	REG_PEND
#
# For REG_STARTEND, the start/end offsets are those of the substring
# enclosed in ().

# basics
a		&	a	a
abc		&	abc	abc
abc|de		-	abc	abc
a|b|c		-	abc	a

# parentheses and perversions thereof
a(b)c		-	abc	abc
a\(b\)c		b	abc	abc
a(		C	EPAREN
a(		b	a(	a(
a\(		-	a(	a(
a\(		bC	EPAREN
a\(b		bC	EPAREN
a(b		C	EPAREN
a(b		b	a(b	a(b
# gag me with a right parenthesis -- 1003.2 goofed here (my fault, partly)
a)		-	a)	a)
)		-	)	)
# end gagging (in a just world, those *should* give EPAREN)
a)		b	a)	a)
a\)		bC	EPAREN
\)		bC	EPAREN
a()b		-	ab	ab
a\(\)b		b	ab	ab

# anchoring and REG_NEWLINE
^abc$		&	abc	abc
a^b		-	a^b
a^b		b	a^b	a^b
a$b		-	a$b
a$b		b	a$b	a$b
^		&	abc	@abc
$		&	abc	@
^$		&	""	@
$^		-	""	@
\($\)\(^\)	b	""	@
# stop retching, those are legitimate (although disgusting)
^^		-	""	@
$$		-	""	@
b$		&	abNc
b$		&n	abNc	b
^b$		&	aNbNc
^b$		&n	aNbNc	b
^$		&n	aNNb	@Nb
^$		n	abc
^$		n	abcN	@
$^		n	aNNb	@Nb
\($\)\(^\)	bn	aNNb	@Nb
^^		n^	aNNb	@Nb
$$		n	aNNb	@NN
^a		^	a
a$		$	a
^a		^n	aNb
^b		^n	aNb	b
a$		$n	bNa
b$		$n	bNa	b
a*(^b$)c*	-	b	b
a*\(^b$\)c*	b	b	b

# certain syntax errors and non-errors
|		C	EMPTY
|		b	|	|
*		C	BADRPT
*		b	*	*
+		C	BADRPT
?		C	BADRPT
""		&C	EMPTY
()		-	abc	@abc
\(\)		b	abc	@abc
a||b		C	EMPTY
|ab		C	EMPTY
ab|		C	EMPTY
(|a)b		C	EMPTY
(a|)b		C	EMPTY
(*a)		C	BADRPT
(+a)		C	BADRPT
(?a)		C	BADRPT
({1}a)		C	BADRPT
\(\{1\}a\)	bC	BADRPT
(a|*b)		C	BADRPT
(a|+b)		C	BADRPT
(a|?b)		C	BADRPT
(a|{1}b)	C	BADRPT
^*		C	BADRPT
^*		b	*	*
^+		C	BADRPT
^?		C	BADRPT
^{1}		C	BADRPT
^\{1\}		bC	BADRPT

# metacharacters, backslashes
a.c		&	abc	abc
a[bc]d		&	abd	abd
a\*c		&	a*c	a*c
a\\b		&	a\b	a\b
a\\\*b		&	a\*b	a\*b
a\bc		&	abc	abc
a\		&C	EESCAPE
a\\bc		&	a\bc	a\bc
\{		bC	BADRPT
a\[b		&	a[b	a[b
a[b		&C	EBRACK
# trailing $ is a peculiar special case for the BRE code
a$		&	a	a
a$		&	a$
a\$		&	a
a\$		&	a$	a$
a\\$		&	a
a\\$		&	a$
a\\$		&	a\$
a\\$		&	a\	a\

# back references, ugh
a\(b\)\2c	bC	ESUBREG
a\(b\1\)c	bC	ESUBREG
a\(b*\)c\1d	b	abbcbbd	abbcbbd	bb
a\(b*\)c\1d	b	abbcbd
a\(b*\)c\1d	b	abbcbbbd
^\(.\)\1	b	abc
a\([bc]\)\1d	b	abcdabbd	abbd	b
a\(\([bc]\)\2\)*d	b	abbccd	abbccd
a\(\([bc]\)\2\)*d	b	abbcbd
# actually, this next one probably ought to fail, but the spec is unclear
a\(\(b\)*\2\)*d		b	abbbd	abbbd
# here is a case that no NFA implementation does right
\(ab*\)[ab]*\1	b	ababaaa	ababaaa	a
# check out normal matching in the presence of back refs
\(a\)\1bcd	b	aabcd	aabcd
\(a\)\1bc*d	b	aabcd	aabcd
\(a\)\1bc*d	b	aabd	aabd
\(a\)\1bc*d	b	aabcccd	aabcccd
\(a\)\1bc*[ce]d	b	aabcccd	aabcccd
^\(a\)\1b\(c\)*cd$	b	aabcccd	aabcccd

# ordinary repetitions
ab*c		&	abc	abc
ab+c		-	abc	abc
ab?c		-	abc	abc
a\(*\)b		b	a*b	a*b
a\(**\)b	b	ab	ab
a\(***\)b	bC	BADRPT
*a		b	*a	*a
**a		b	a	a
***a		bC	BADRPT

# the dreaded bounded repetitions
{		&	{	{
{abc		&	{abc	{abc
{1		C	BADRPT
{1}		C	BADRPT
a{b		&	a{b	a{b
a{1}b		-	ab	ab
a\{1\}b		b	ab	ab
a{1,}b		-	ab	ab
a\{1,\}b	b	ab	ab
a{1,2}b		-	aab	aab
a\{1,2\}b	b	aab	aab
a{1		C	EBRACE
a\{1		bC	EBRACE
a{1a		C	EBRACE
a\{1a		bC	EBRACE
a{1a}		C	BADBR
a\{1a\}		bC	BADBR
a{,2}		-	a{,2}	a{,2}
a\{,2\}		bC	BADBR
a{,}		-	a{,}	a{,}
a\{,\}		bC	BADBR
a{1,x}		C	BADBR
a\{1,x\}	bC	BADBR
a{1,x		C	EBRACE
a\{1,x		bC	EBRACE
a{300}		C	BADBR
a\{300\}	bC	BADBR
a{1,0}		C	BADBR
a\{1,0\}	bC	BADBR
ab{0,0}c	-	abcac	ac
ab\{0,0\}c	b	abcac	ac
ab{0,1}c	-	abcac	abc
ab\{0,1\}c	b	abcac	abc
ab{0,3}c	-	abbcac	abbc
ab\{0,3\}c	b	abbcac	abbc
ab{1,1}c	-	acabc	abc
ab\{1,1\}c	b	acabc	abc
ab{1,3}c	-	acabc	abc
ab\{1,3\}c	b	acabc	abc
ab{2,2}c	-	abcabbc	abbc
ab\{2,2\}c	b	abcabbc	abbc
ab{2,4}c	-	abcabbc	abbc
ab\{2,4\}c	b	abcabbc	abbc
((a{1,10}){1,10}){1,10}	-	a	a	a,a

# multiple repetitions
a**		&C	BADRPT
a++		C	BADRPT
a??		C	BADRPT
a*+		C	BADRPT
a*?		C	BADRPT
a+*		C	BADRPT
a+?		C	BADRPT
a?*		C	BADRPT
a?+		C	BADRPT
a{1}{1}		C	BADRPT
a*{1}		C	BADRPT
a+{1}		C	BADRPT
a?{1}		C	BADRPT
a{1}*		C	BADRPT
a{1}+		C	BADRPT
a{1}?		C	BADRPT
a*{b}		-	a{b}	a{b}
a\{1\}\{1\}	bC	BADRPT
a*\{1\}		bC	BADRPT
a\{1\}*		bC	BADRPT

# brackets, and numerous perversions thereof
a[b]c		&	abc	abc
a[ab]c		&	abc	abc
a[^ab]c		&	adc	adc
a[]b]c		&	a]c	a]c
a[[b]c		&	a[c	a[c
a[-b]c		&	a-c	a-c
a[^]b]c		&	adc	adc
a[^-b]c		&	adc	adc
a[b-]c		&	a-c	a-c
a[b		&C	EBRACK
a[]		&C	EBRACK
a[1-3]c		&	a2c	a2c
a[3-1]c		&C	ERANGE
a[1-3-5]c	&C	ERANGE
a[[.-.]--]c	&	a-c	a-c
a[1-		&C	ERANGE
a[[.		&C	EBRACK
a[[.x		&C	EBRACK
a[[.x.		&C	EBRACK
a[[.x.]		&C	EBRACK
a[[.x.]]	&	ax	ax
a[[.x,.]]	&C	ECOLLATE
a[[.one.]]b	&	a1b	a1b
a[[.notdef.]]b	&C	ECOLLATE
a[[.].]]b	&	a]b	a]b
a[[:notdef:]]c	&C	ECTYPE
a[[:		&C	EBRACK
a[[:alpha	&C	EBRACK
a[[:alpha:]	&C	EBRACK
a[[:alpha,:]	&C	ECTYPE
a[[:]:]]b	&C	ECTYPE
a[[:-:]]b	&C	ECTYPE
a[[:alph:]]	&C	ECTYPE
a[[:alphabet:]]	&C	ECTYPE
[[:alnum:]]+	-	-%@aÄX-	aÄX
[[:alpha:]]+	-	-%@aX0-	aX
[[:blank:]]+	-	aSSTb	SST
[[:cntrl:]]+	-	aNTb	NT
[[:digit:]]+	-	a019b	019
[[:graph:]]+	-	Sa%bS	a%b
[[:lower:]]+	-	AabC	ab
[[:print:]]+	-	NaSbN	aSb
[[:punct:]]+	-	S%-&T	%-&
[[:space:]]+	-	aSNTb	SNT
[[:upper:]]+	-	aBCd	BC
[[:xdigit:]]+	-	p0f3Cq	0f3C
a[[=b=]]c	&	abc	abc
a[[=		&C	EBRACK
a[[=b		&C	EBRACK
a[[=b=		&C	EBRACK
a[[=b=]		&C	EBRACK
a[[=b,=]]	&C	ECOLLATE
a[[=one=]]b	&	a1b	a1b

# complexities
a(((b)))c	-	abc	abc
a(b|(c))d	-	abd	abd
a(b*|c)d	-	abbd	abbd
# just gotta have one DFA-buster, of course
a[ab]{20}	-	aaaaabaaaabaaaabaaaab	aaaaabaaaabaaaabaaaab
# and an inline expansion in case somebody gets tricky
a[ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab]	-	aaaaabaaaabaaaabaaaab	aaaaabaaaabaaaabaaaab
# and in case somebody just slips in an NFA...
a[ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab](wee|week)(knights|night)	-	aaaaabaaaabaaaabaaaabweeknights	aaaaabaaaabaaaabaaaabweeknights
# fish for anomalies as the number of states passes 32
12345678901234567890123456789	-	a12345678901234567890123456789b	12345678901234567890123456789
123456789012345678901234567890	-	a123456789012345678901234567890b	123456789012345678901234567890
1234567890123456789012345678901	-	a1234567890123456789012345678901b	1234567890123456789012345678901
12345678901234567890123456789012	-	a12345678901234567890123456789012b	12345678901234567890123456789012
123456789012345678901234567890123	-	a123456789012345678901234567890123b	123456789012345678901234567890123
# and one really big one, beyond any plausible word width
1234567890123456789012345678901234567890123456789012345678901234567890	-	a1234567890123456789012345678901234567890123456789012345678901234567890b	1234567890123456789012345678901234567890123456789012345678901234567890
# fish for problems as brackets go past 8
[ab][cd][ef][gh][ij][kl][mn]	-	xacegikmoq	acegikm
[ab][cd][ef][gh][ij][kl][mn][op]	-	xacegikmoq	acegikmo
[ab][cd][ef][gh][ij][kl][mn][op][qr]	-	xacegikmoqy	acegikmoq
[ab][cd][ef][gh][ij][kl][mn][op][q]	-	xacegikmoqy	acegikmoq

# subtleties of matching
abc		&	xabcy	abc
a\(b\)?c\1d	b	acd
aBc		i	Abc	Abc
a[Bc]*d		i	abBCcd	abBCcd
0[[:upper:]]1	&i	0a1	0a1
0[[:lower:]]1	&i	0A1	0A1
a[^b]c		&i	abc
a[^b]c		&i	aBc
a[^b]c		&i	adc	adc
[a]b[c]		-	abc	abc
[a]b[a]		-	aba	aba
[abc]b[abc]	-	abc	abc
[abc]b[abd]	-	abd	abd
a(b?c)+d	-	accd	accd
(wee|week)(knights|night)	-	weeknights	weeknights
(we|wee|week|frob)(knights|night|day)	-	weeknights	weeknights
a[bc]d		-	xyzaaabcaababdacd	abd
a[ab]c		-	aaabc	abc
abc		s	abc	abc
a*		&	b	@b

# Let's have some fun -- try to match a C comment.
# first the obvious, which looks okay at first glance...
/\*.*\*/	-	/*x*/	/*x*/
# but...
/\*.*\*/	-	/*x*/y/*z*/	/*x*/y/*z*/
# okay, we must not match */ inside; try to do that...
/\*([^*]|\*[^/])*\*/	-	/*x*/	/*x*/
/\*([^*]|\*[^/])*\*/	-	/*x*/y/*z*/	/*x*/
# but...
/\*([^*]|\*[^/])*\*/	-	/*x**/y/*z*/	/*x**/y/*z*/
# and a still fancier version, which does it right (I think)...
/\*([^*]|\*+[^*/])*\*+/	-	/*x*/	/*x*/
/\*([^*]|\*+[^*/])*\*+/	-	/*x*/y/*z*/	/*x*/
/\*([^*]|\*+[^*/])*\*+/	-	/*x**/y/*z*/	/*x**/
/\*([^*]|\*+[^*/])*\*+/	-	/*x****/y/*z*/	/*x****/
/\*([^*]|\*+[^*/])*\*+/	-	/*x**x*/y/*z*/	/*x**x*/
/\*([^*]|\*+[^*/])*\*+/	-	/*x***x/y/*z*/	/*x***x/y/*z*/

# subexpressions
a(b)(c)d	-	abcd	abcd	b,c
a(((b)))c	-	abc	abc	b,b,b
a(b|(c))d	-	abd	abd	b,-
a(b*|c|e)d	-	abbd	abbd	bb
a(b*|c|e)d	-	acd	acd	c
a(b*|c|e)d	-	ad	ad	@d
a(b?)c		-	abc	abc	b
a(b?)c		-	ac	ac	@c
a(b+)c		-	abc	abc	b
a(b+)c		-	abbbc	abbbc	bbb
a(b*)c		-	ac	ac	@c
(a|ab)(bc([de]+)f|cde)	-	abcdef	abcdef	a,bcdef,de
# the regression tester only asks for 9 subexpressions
a(b)(c)(d)(e)(f)(g)(h)(i)(j)k	-	abcdefghijk	abcdefghijk	b,c,d,e,f,g,h,i,j
a(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)l	-	abcdefghijkl	abcdefghijkl	b,c,d,e,f,g,h,i,j,k
a([bc]?)c	-	abc	abc	b
a([bc]?)c	-	ac	ac	@c
a([bc]+)c	-	abc	abc	b
a([bc]+)c	-	abcc	abcc	bc
a([bc]+)bc	-	abcbc	abcbc	bc
a(bb+|b)b	-	abb	abb	b
a(bbb+|bb+|b)b	-	abb	abb	b
a(bbb+|bb+|b)b	-	abbb	abbb	bb
a(bbb+|bb+|b)bb	-	abbb	abbb	b
(.*).*		-	abcdef	abcdef	abcdef
(a*)*		-	bc	@b	@b

# do we get the right subexpression when it is used more than once?
a(b|c)*d	-	ad	ad	-
a(b|c)*d	-	abcd	abcd	c
a(b|c)+d	-	abd	abd	b
a(b|c)+d	-	abcd	abcd	c
a(b|c?)+d	-	ad	ad	@d
a(b|c?)+d	-	abcd	abcd	@d
a(b|c){0,0}d	-	ad	ad	-
a(b|c){0,1}d	-	ad	ad	-
a(b|c){0,1}d	-	abd	abd	b
a(b|c){0,2}d	-	ad	ad	-
a(b|c){0,2}d	-	abcd	abcd	c
a(b|c){0,}d	-	ad	ad	-
a(b|c){0,}d	-	abcd	abcd	c
a(b|c){1,1}d	-	abd	abd	b
a(b|c){1,1}d	-	acd	acd	c
a(b|c){1,2}d	-	abd	abd	b
a(b|c){1,2}d	-	abcd	abcd	c
a(b|c){1,}d	-	abd	abd	b
a(b|c){1,}d	-	abcd	abcd	c
a(b|c){2,2}d	-	acbd	acbd	b
a(b|c){2,2}d	-	abcd	abcd	c
a(b|c){2,4}d	-	abcd	abcd	c
a(b|c){2,4}d	-	abcbd	abcbd	b
a(b|c){2,4}d	-	abcbcd	abcbcd	c
a(b|c){2,}d	-	abcd	abcd	c
a(b|c){2,}d	-	abcbd	abcbd	b
a(b+|((c)*))+d	-	abd	abd	@d,@d,-
a(b+|((c)*))+d	-	abcd	abcd	@d,@d,-

# check out the STARTEND option
[abc]		&#	a(b)c	b
[abc]		&#	a(d)c
[abc]		&#	a(bc)d	b
[abc]		&#	a(dc)d	c
.		&#	a()c
b.*c		&#	b(bc)c	bc
b.*		&#	b(bc)c	bc
.*c		&#	b(bc)c	bc

# plain strings, with the NOSPEC flag
abc		m	abc	abc
abc		m	xabcy	abc
abc		m	xyz
a*b		m	aba*b	a*b
a*b		m	ab
""		mC	EMPTY

# cases involving NULs
aZb		&	a	a
aZb		&p	a
aZb		&p#	(aZb)	aZb
aZ*b		&p#	(ab)	ab
a.b		&#	(aZb)	aZb
a.*		&#	(aZb)c	aZb

# word boundaries (ick)
[[:<:]]a	&	a	a
[[:<:]]a	&	ba
[[:<:]]a	&	-a	a
a[[:>:]]	&	a	a
a[[:>:]]	&	ab
a[[:>:]]	&	a-	a
[[:<:]]a.c[[:>:]]	&	axcd-dayc-dazce-abc	abc
[[:<:]]a.c[[:>:]]	&	axcd-dayc-dazce-abc-q	abc
[[:<:]]a.c[[:>:]]	&	axc-dayc-dazce-abc	axc
[[:<:]]b.c[[:>:]]	&	a_bxc-byc_d-bzc-q	bzc
[[:<:]].x..[[:>:]]	&	y_xa_-_xb_y-_xc_-axdc	_xc_
[[:<:]]a_b[[:>:]]	&	x_a_b

# past problems, and suspected problems
(A[1])|(A[2])|(A[3])|(A[4])|(A[5])|(A[6])|(A[7])|(A[8])|(A[9])|(A[A])	-	A1	A1
abcdefghijklmnop	i	abcdefghijklmnop	abcdefghijklmnop
abcdefghijklmnopqrstuv	i	abcdefghijklmnopqrstuv	abcdefghijklmnopqrstuv
(ALAK)|(ALT[AB])|(CC[123]1)|(CM[123]1)|(GAMC)|(LC[23][EO ])|(SEM[1234])|(SL[ES][12])|(SLWW)|(SLF )|(SLDT)|(VWH[12])|(WH[34][EW])|(WP1[ESN])	-	CC11	CC11
CC[13]1|a{21}[23][EO][123][Es][12]a{15}aa[34][EW]aaaaaaa[X]a	-	CC11	CC11
Char \([a-z0-9_]*\)\[.*	b	Char xyz[k	Char xyz[k	xyz
a?b	-	ab	ab
-\{0,1\}[0-9]*$	b	-5	-5