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
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
|
# vim:set ft= ts=4 sw=4 et fdm=marker:
use Test::Nginx::Socket::Lua::Stream;
#worker_connections(1014);
#master_on();
#workers(2);
log_level('warn');
repeat_each(2);
plan tests => repeat_each() * (blocks() * 2 + 1);
#no_diff();
#no_long_string();
run_tests();
__DATA__
=== TEST 1: sanity
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello, 1234", "([0-9]+)", "o")
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
}
--- stream_response
1234
=== TEST 2: escaping sequences
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello, 1234", "(\\d+)", "o")
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
}
--- stream_response
1234
=== TEST 3: single capture
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello, 1234", "([0-9]{2})[0-9]+", "o")
if m then
ngx.say(m[0])
ngx.say(m[1])
else
ngx.say("not matched!")
end
}
--- stream_response
1234
12
=== TEST 4: multiple captures
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello, 1234", "([a-z]+).*?([0-9]{2})[0-9]+", "o")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
else
ngx.say("not matched!")
end
}
--- stream_response
hello, 1234
hello
12
=== TEST 5: not matched
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello, 1234", "foo", "o")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
}
--- stream_response
not matched: nil
=== TEST 6: case sensitive by default
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello, 1234", "HELLO", "o")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
}
--- stream_response
not matched: nil
=== TEST 7: case sensitive by default
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello, 1234", "HELLO", "oi")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
}
--- stream_response
hello
=== TEST 8: UTF-8 mode
--- stream_server_config
content_by_lua_block {
local rc, m = pcall(ngx.re.match, "hello章亦春", "HELLO.{2}", "iou")
if not rc then
ngx.say("error: ", m)
return
end
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
}
--- stream_response_like chop
this version of PCRE is not compiled with PCRE_UTF8 support|^hello章亦$
=== TEST 9: multi-line mode (^ at line head)
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello\nworld", "^world", "mo")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
}
--- stream_response
world
=== TEST 10: multi-line mode (. does not match \n)
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello\nworld", ".*", "om")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
}
--- stream_response
hello
=== TEST 11: single-line mode (^ as normal)
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello\nworld", "^world", "so")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
}
--- stream_response
not matched: nil
=== TEST 12: single-line mode (dot all)
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello\nworld", ".*", "os")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
}
--- stream_response
hello
world
=== TEST 13: extended mode (ignore whitespaces)
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello\nworld", [[\w \w]], "xo")
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
}
--- stream_response
he
=== TEST 14: bad pattern
--- stream_server_config
content_by_lua_block {
local m, err = ngx.re.match("hello\\nworld", "(abc", "o")
if m then
ngx.say(m[0])
else
if err then
ngx.say("error: ", err)
else
ngx.say("not matched: ", m)
end
end
}
--- stream_response eval
$Test::Nginx::Util::PcreVersion == 2 ?
"error: pcre2_compile() failed: missing closing parenthesis in \"(abc\"\n"
:
"error: pcre_compile() failed: missing ) in \"(abc\"\n"
--- no_error_log
[error]
=== TEST 15: bad option
--- stream_server_config
content_by_lua_block {
rc, m = pcall(ngx.re.match, "hello\\nworld", ".*", "Ho")
if rc then
if m then
ngx.say(m[0])
else
ngx.say("not matched: ", m)
end
else
ngx.say("error: ", m)
end
}
--- stream_response_like chop
^error: .*?unknown flag "H"
=== TEST 16: extended mode (ignore whitespaces)
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello, world", "(world)|(hello)", "xo")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
else
ngx.say("not matched: ", m)
end
}
--- stream_response
hello
false
hello
=== TEST 17: optional trailing captures
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello, 1234", "([0-9]+)(h?)", "o")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
else
ngx.say("not matched!")
end
}
--- stream_response eval
"1234
1234
"
=== TEST 18: anchored match (failed)
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("hello, 1234", "([0-9]+)", "oa")
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
}
--- stream_response
not matched!
=== TEST 19: anchored match (succeeded)
--- stream_server_config
content_by_lua_block {
m = ngx.re.match("1234, hello", "([0-9]+)", "ao")
if m then
ngx.say(m[0])
else
ngx.say("not matched!")
end
}
--- stream_response
1234
=== TEST 20: match with ctx but no pos
--- stream_server_config
content_by_lua_block {
local ctx = {}
m = ngx.re.match("1234, hello", "([0-9]+)", "o", ctx)
if m then
ngx.say(m[0])
ngx.say(ctx.pos)
else
ngx.say("not matched!")
ngx.say(ctx.pos)
end
}
--- stream_response
1234
5
=== TEST 21: match with ctx and a pos
--- stream_server_config
content_by_lua_block {
local ctx = { pos = 3 }
m = ngx.re.match("1234, hello", "([0-9]+)", "o", ctx)
if m then
ngx.say(m[0])
ngx.say(ctx.pos)
else
ngx.say("not matched!")
ngx.say(ctx.pos)
end
}
--- stream_response
34
5
=== TEST 22: match (look-behind assertion)
--- stream_server_config
content_by_lua_block {
local ctx = {}
local m = ngx.re.match("{foobarbaz}", "(?<=foo)bar|(?<=bar)baz", "o", ctx)
ngx.say(m and m[0])
m = ngx.re.match("{foobarbaz}", "(?<=foo)bar|(?<=bar)baz", "o", ctx)
ngx.say(m and m[0])
}
--- stream_response
bar
baz
=== TEST 23: match (with regex cache)
--- stream_server_config
content_by_lua_block {
local m = ngx.re.match("hello, 1234", "([A-Z]+)", "io")
ngx.say(m and m[0])
m = ngx.re.match("1234, okay", "([A-Z]+)", "io")
ngx.say(m and m[0])
m = ngx.re.match("hello, 1234", "([A-Z]+)", "o")
ngx.say(m and m[0])
}
--- stream_response
hello
okay
nil
=== TEST 24: match (with regex cache and ctx)
--- stream_server_config
content_by_lua_block {
local ctx = {}
local m = ngx.re.match("hello, 1234", "([A-Z]+)", "io", ctx)
ngx.say(m and m[0])
ngx.say(ctx.pos)
m = ngx.re.match("1234, okay", "([A-Z]+)", "io", ctx)
ngx.say(m and m[0])
ngx.say(ctx.pos)
ctx.pos = 1
m = ngx.re.match("hi, 1234", "([A-Z]+)", "o", ctx)
ngx.say(m and m[0])
ngx.say(ctx.pos)
}
--- stream_response
hello
6
okay
11
nil
1
=== TEST 25: exceeding regex cache max entries
--- stream_config
lua_regex_cache_max_entries 2;
--- stream_server_config
content_by_lua_block {
local m = ngx.re.match("hello, 1234", "([0-9]+)", "o")
ngx.say(m and m[0])
m = ngx.re.match("howdy, 567", "([0-9]+)", "oi")
ngx.say(m and m[0])
m = ngx.re.match("hiya, 98", "([0-9]+)", "ox")
ngx.say(m and m[0])
}
--- stream_response
1234
567
98
=== TEST 26: disable regex cache completely
--- stream_config
lua_regex_cache_max_entries 0;
--- stream_server_config
content_by_lua_block {
local m = ngx.re.match("hello, 1234", "([0-9]+)", "o")
ngx.say(m and m[0])
m = ngx.re.match("howdy, 567", "([0-9]+)", "oi")
ngx.say(m and m[0])
m = ngx.re.match("hiya, 98", "([0-9]+)", "ox")
ngx.say(m and m[0])
}
--- stream_response
1234
567
98
=== TEST 27: named subpatterns w/ extraction
--- stream_server_config
content_by_lua_block {
local m = ngx.re.match("hello, 1234", "(?<first>[a-z]+), [0-9]+", "o")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m.first)
ngx.say(m.second)
else
ngx.say("not matched!")
end
}
--- stream_response
hello, 1234
hello
hello
nil
=== TEST 28: duplicate named subpatterns w/ extraction
--- stream_server_config
content_by_lua_block {
local m = ngx.re.match("hello, 1234", "(?<first>[a-z]+), (?<first>[0-9]+)", "Do")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
ngx.say(table.concat(m.first,"-"))
else
ngx.say("not matched!")
end
}
--- stream_response
hello, 1234
hello
1234
hello-1234
=== TEST 29: named captures are empty strings
--- stream_server_config
content_by_lua_block {
local m = ngx.re.match("1234", "(?<first>[a-z]*)([0-9]+)", "o")
if m then
ngx.say(m[0])
ngx.say(m.first)
ngx.say(m[1])
ngx.say(m[2])
else
ngx.say("not matched!")
end
}
--- stream_response
1234
1234
=== TEST 30: named captures are nil
--- stream_server_config
content_by_lua_block {
local m = ngx.re.match("hello, world", "(world)|(hello)|(?<named>howdy)", "o")
if m then
ngx.say(m[0])
ngx.say(m[1])
ngx.say(m[2])
ngx.say(m[3])
ngx.say(m["named"])
else
ngx.say("not matched!")
end
}
--- stream_response
hello
false
hello
false
false
|
