1 /*
2 * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /**
25 * @test
26 * @summary tests RegExp framework (use -Dseed=X to set PRNG seed)
27 * @author Mike McCloskey
28 * @bug 4481568 4482696 4495089 4504687 4527731 4599621 4631553 4619345
29 * 4630911 4672616 4711773 4727935 4750573 4792284 4803197 4757029 4808962
30 * 4872664 4803179 4892980 4900747 4945394 4938995 4979006 4994840 4997476
31 * 5013885 5003322 4988891 5098443 5110268 6173522 4829857 5027748 6376940
32 * 6358731 6178785 6284152 6231989 6497148 6486934 6233084 6504326 6635133
33 * 6350801 6676425 6878475 6919132 6931676 6948903 6990617 7014645 7039066
34 * 7067045 7014640 7189363 8007395 8013252 8013254 8012646 8023647 6559590
35 * 8027645 8035076 8039124 8035975 8074678 6854417 8143854 8147531 7071819
36 * 8151481
37 * @library /lib/testlibrary
38 * @build jdk.testlibrary.*
39 * @run main RegExTest
40 * @key randomness
41 */
42
43 import java.util.function.Function;
44 import java.util.regex.*;
45 import java.util.Random;
46 import java.util.Scanner;
47 import java.io.*;
48 import java.nio.file.*;
49 import java.util.*;
50 import java.nio.CharBuffer;
51 import java.util.function.Predicate;
52 import jdk.testlibrary.RandomFactory;
53
54 /**
55 * This is a test class created to check the operation of
56 * the Pattern and Matcher classes.
57 */
58 public class RegExTest {
59
60 private static Random generator = RandomFactory.getRandom();
61 private static boolean failure = false;
62 private static int failCount = 0;
63 private static String firstFailure = null;
64
65 /**
66 * Main to interpret arguments and run several tests.
67 *
68 */
69 public static void main(String[] args) throws Exception {
70 // Most of the tests are in a file
71 processFile("TestCases.txt");
72 //processFile("PerlCases.txt");
73 processFile("BMPTestCases.txt");
74 processFile("SupplementaryTestCases.txt");
75
76 // These test many randomly generated char patterns
77 bm();
78 slice();
79
80 // These are hard to put into the file
81 escapes();
82 blankInput();
83
84 // Substitition tests on randomly generated sequences
85 globalSubstitute();
86 stringbufferSubstitute();
87 stringbuilderSubstitute();
88
89 substitutionBasher();
90 substitutionBasher2();
91
92 // Canonical Equivalence
93 ceTest();
94
95 // Anchors
96 anchorTest();
97
98 // boolean match calls
99 matchesTest();
100 lookingAtTest();
101
102 // Pattern API
103 patternMatchesTest();
104
105 // Misc
106 lookbehindTest();
107 nullArgumentTest();
108 backRefTest();
109 groupCaptureTest();
110 caretTest();
111 charClassTest();
112 emptyPatternTest();
113 findIntTest();
114 group0Test();
115 longPatternTest();
116 octalTest();
117 ampersandTest();
118 negationTest();
119 splitTest();
120 appendTest();
121 caseFoldingTest();
122 commentsTest();
123 unixLinesTest();
124 replaceFirstTest();
125 gTest();
126 zTest();
127 serializeTest();
128 reluctantRepetitionTest();
129 multilineDollarTest();
130 dollarAtEndTest();
131 caretBetweenTerminatorsTest();
132 // This RFE rejected in Tiger numOccurrencesTest();
133 javaCharClassTest();
134 nonCaptureRepetitionTest();
135 notCapturedGroupCurlyMatchTest();
136 escapedSegmentTest();
137 literalPatternTest();
138 literalReplacementTest();
139 regionTest();
140 toStringTest();
141 negatedCharClassTest();
142 findFromTest();
143 boundsTest();
144 unicodeWordBoundsTest();
145 caretAtEndTest();
146 wordSearchTest();
147 hitEndTest();
148 toMatchResultTest();
149 toMatchResultTest2();
150 surrogatesInClassTest();
151 removeQEQuotingTest();
152 namedGroupCaptureTest();
153 nonBmpClassComplementTest();
154 unicodePropertiesTest();
155 unicodeHexNotationTest();
156 unicodeClassesTest();
157 unicodeCharacterNameTest();
158 horizontalAndVerticalWSTest();
159 linebreakTest();
160 branchTest();
161 groupCurlyNotFoundSuppTest();
162 groupCurlyBackoffTest();
163 patternAsPredicate();
164 invalidFlags();
165 grapheme();
166
167 if (failure) {
168 throw new
169 RuntimeException("RegExTest failed, 1st failure: " +
170 firstFailure);
171 } else {
172 System.err.println("OKAY: All tests passed.");
173 }
174 }
175
176 // Utility functions
177
178 private static String getRandomAlphaString(int length) {
179 StringBuffer buf = new StringBuffer(length);
180 for (int i=0; i<length; i++) {
181 char randChar = (char)(97 + generator.nextInt(26));
182 buf.append(randChar);
183 }
184 return buf.toString();
185 }
186
187 private static void check(Matcher m, String expected) {
188 m.find();
189 if (!m.group().equals(expected))
190 failCount++;
191 }
192
193 private static void check(Matcher m, String result, boolean expected) {
194 m.find();
195 if (m.group().equals(result) != expected)
196 failCount++;
197 }
198
199 private static void check(Pattern p, String s, boolean expected) {
200 if (p.matcher(s).find() != expected)
201 failCount++;
202 }
203
204 private static void check(String p, String s, boolean expected) {
205 Matcher matcher = Pattern.compile(p).matcher(s);
206 if (matcher.find() != expected)
207 failCount++;
208 }
209
210 private static void check(String p, char c, boolean expected) {
211 String propertyPattern = expected ? "\\p" + p : "\\P" + p;
212 Pattern pattern = Pattern.compile(propertyPattern);
213 char[] ca = new char[1]; ca[0] = c;
214 Matcher matcher = pattern.matcher(new String(ca));
215 if (!matcher.find())
216 failCount++;
217 }
218
219 private static void check(String p, int codePoint, boolean expected) {
220 String propertyPattern = expected ? "\\p" + p : "\\P" + p;
221 Pattern pattern = Pattern.compile(propertyPattern);
222 char[] ca = Character.toChars(codePoint);
223 Matcher matcher = pattern.matcher(new String(ca));
224 if (!matcher.find())
225 failCount++;
226 }
227
228 private static void check(String p, int flag, String input, String s,
229 boolean expected)
230 {
231 Pattern pattern = Pattern.compile(p, flag);
232 Matcher matcher = pattern.matcher(input);
233 if (expected)
234 check(matcher, s, expected);
235 else
236 check(pattern, input, false);
237 }
238
239 private static void report(String testName) {
240 int spacesToAdd = 30 - testName.length();
241 StringBuffer paddedNameBuffer = new StringBuffer(testName);
242 for (int i=0; i<spacesToAdd; i++)
243 paddedNameBuffer.append(" ");
244 String paddedName = paddedNameBuffer.toString();
245 System.err.println(paddedName + ": " +
246 (failCount==0 ? "Passed":"Failed("+failCount+")"));
247 if (failCount > 0) {
248 failure = true;
249
250 if (firstFailure == null) {
251 firstFailure = testName;
252 }
253 }
254
255 failCount = 0;
256 }
257
258 /**
259 * Converts ASCII alphabet characters [A-Za-z] in the given 's' to
260 * supplementary characters. This method does NOT fully take care
261 * of the regex syntax.
262 */
263 private static String toSupplementaries(String s) {
264 int length = s.length();
265 StringBuffer sb = new StringBuffer(length * 2);
266
267 for (int i = 0; i < length; ) {
268 char c = s.charAt(i++);
269 if (c == '\\') {
270 sb.append(c);
271 if (i < length) {
272 c = s.charAt(i++);
273 sb.append(c);
274 if (c == 'u') {
275 // assume no syntax error
276 sb.append(s.charAt(i++));
277 sb.append(s.charAt(i++));
278 sb.append(s.charAt(i++));
279 sb.append(s.charAt(i++));
280 }
281 }
282 } else if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) {
283 sb.append('\ud800').append((char)('\udc00'+c));
284 } else {
285 sb.append(c);
286 }
287 }
288 return sb.toString();
289 }
290
291 // Regular expression tests
292
293 // This is for bug 6178785
294 // Test if an expected NPE gets thrown when passing in a null argument
295 private static boolean check(Runnable test) {
296 try {
297 test.run();
298 failCount++;
299 return false;
300 } catch (NullPointerException npe) {
301 return true;
302 }
303 }
304
305 private static void nullArgumentTest() {
306 check(() -> Pattern.compile(null));
307 check(() -> Pattern.matches(null, null));
308 check(() -> Pattern.matches("xyz", null));
309 check(() -> Pattern.quote(null));
310 check(() -> Pattern.compile("xyz").split(null));
311 check(() -> Pattern.compile("xyz").matcher(null));
312
313 final Matcher m = Pattern.compile("xyz").matcher("xyz");
314 m.matches();
315 check(() -> m.appendTail((StringBuffer) null));
316 check(() -> m.appendTail((StringBuilder)null));
317 check(() -> m.replaceAll((String) null));
318 check(() -> m.replaceAll((Function<MatchResult, String>)null));
319 check(() -> m.replaceFirst((String)null));
320 check(() -> m.replaceFirst((Function<MatchResult, String>) null));
321 check(() -> m.appendReplacement((StringBuffer)null, null));
322 check(() -> m.appendReplacement((StringBuilder)null, null));
323 check(() -> m.reset(null));
324 check(() -> Matcher.quoteReplacement(null));
325 //check(() -> m.usePattern(null));
326
327 report("Null Argument");
328 }
329
330 // This is for bug6635133
331 // Test if surrogate pair in Unicode escapes can be handled correctly.
332 private static void surrogatesInClassTest() throws Exception {
333 Pattern pattern = Pattern.compile("[\\ud834\\udd21-\\ud834\\udd24]");
334 Matcher matcher = pattern.matcher("\ud834\udd22");
335 if (!matcher.find())
336 failCount++;
337
338 report("Surrogate pair in Unicode escape");
339 }
340
341 // This is for bug6990617
342 // Test if Pattern.RemoveQEQuoting works correctly if the octal unicode
343 // char encoding is only 2 or 3 digits instead of 4 and the first quoted
344 // char is an octal digit.
345 private static void removeQEQuotingTest() throws Exception {
346 Pattern pattern =
347 Pattern.compile("\\011\\Q1sometext\\E\\011\\Q2sometext\\E");
348 Matcher matcher = pattern.matcher("\t1sometext\t2sometext");
349 if (!matcher.find())
350 failCount++;
351
352 report("Remove Q/E Quoting");
353 }
354
355 // This is for bug 4988891
356 // Test toMatchResult to see that it is a copy of the Matcher
357 // that is not affected by subsequent operations on the original
358 private static void toMatchResultTest() throws Exception {
359 Pattern pattern = Pattern.compile("squid");
360 Matcher matcher = pattern.matcher(
361 "agiantsquidofdestinyasmallsquidoffate");
362 matcher.find();
363 int matcherStart1 = matcher.start();
364 MatchResult mr = matcher.toMatchResult();
365 if (mr == matcher)
366 failCount++;
367 int resultStart1 = mr.start();
368 if (matcherStart1 != resultStart1)
369 failCount++;
370 matcher.find();
371 int matcherStart2 = matcher.start();
372 int resultStart2 = mr.start();
373 if (matcherStart2 == resultStart2)
374 failCount++;
375 if (resultStart1 != resultStart2)
376 failCount++;
377 MatchResult mr2 = matcher.toMatchResult();
378 if (mr == mr2)
379 failCount++;
380 if (mr2.start() != matcherStart2)
381 failCount++;
382 report("toMatchResult is a copy");
383 }
384
385 private static void checkExpectedISE(Runnable test) {
386 try {
387 test.run();
388 failCount++;
389 } catch (IllegalStateException x) {
390 } catch (IndexOutOfBoundsException xx) {
391 failCount++;
392 }
393 }
394
395 private static void checkExpectedIOOE(Runnable test) {
396 try {
397 test.run();
398 failCount++;
399 } catch (IndexOutOfBoundsException x) {}
400 }
401
402 // This is for bug 8074678
403 // Test the result of toMatchResult throws ISE if no match is availble
404 private static void toMatchResultTest2() throws Exception {
405 Matcher matcher = Pattern.compile("nomatch").matcher("hello world");
406 matcher.find();
407 MatchResult mr = matcher.toMatchResult();
408
409 checkExpectedISE(() -> mr.start());
410 checkExpectedISE(() -> mr.start(2));
411 checkExpectedISE(() -> mr.end());
412 checkExpectedISE(() -> mr.end(2));
413 checkExpectedISE(() -> mr.group());
414 checkExpectedISE(() -> mr.group(2));
415
416 matcher = Pattern.compile("(match)").matcher("there is a match");
417 matcher.find();
418 MatchResult mr2 = matcher.toMatchResult();
419 checkExpectedIOOE(() -> mr2.start(2));
420 checkExpectedIOOE(() -> mr2.end(2));
421 checkExpectedIOOE(() -> mr2.group(2));
422
423 report("toMatchResult2 appropriate exceptions");
424 }
425
426 // This is for bug 5013885
427 // Must test a slice to see if it reports hitEnd correctly
428 private static void hitEndTest() throws Exception {
429 // Basic test of Slice node
430 Pattern p = Pattern.compile("^squidattack");
431 Matcher m = p.matcher("squack");
432 m.find();
433 if (m.hitEnd())
434 failCount++;
435 m.reset("squid");
436 m.find();
437 if (!m.hitEnd())
438 failCount++;
439
440 // Test Slice, SliceA and SliceU nodes
441 for (int i=0; i<3; i++) {
442 int flags = 0;
443 if (i==1) flags = Pattern.CASE_INSENSITIVE;
444 if (i==2) flags = Pattern.UNICODE_CASE;
445 p = Pattern.compile("^abc", flags);
446 m = p.matcher("ad");
447 m.find();
448 if (m.hitEnd())
449 failCount++;
450 m.reset("ab");
451 m.find();
452 if (!m.hitEnd())
453 failCount++;
454 }
455
456 // Test Boyer-Moore node
457 p = Pattern.compile("catattack");
458 m = p.matcher("attack");
459 m.find();
460 if (!m.hitEnd())
461 failCount++;
462
463 p = Pattern.compile("catattack");
464 m = p.matcher("attackattackattackcatatta");
465 m.find();
466 if (!m.hitEnd())
467 failCount++;
468 report("hitEnd from a Slice");
469 }
470
471 // This is for bug 4997476
472 // It is weird code submitted by customer demonstrating a regression
473 private static void wordSearchTest() throws Exception {
474 String testString = new String("word1 word2 word3");
475 Pattern p = Pattern.compile("\\b");
476 Matcher m = p.matcher(testString);
477 int position = 0;
478 int start = 0;
479 while (m.find(position)) {
480 start = m.start();
481 if (start == testString.length())
482 break;
483 if (m.find(start+1)) {
484 position = m.start();
485 } else {
486 position = testString.length();
487 }
488 if (testString.substring(start, position).equals(" "))
489 continue;
490 if (!testString.substring(start, position-1).startsWith("word"))
491 failCount++;
492 }
493 report("Customer word search");
494 }
495
496 // This is for bug 4994840
497 private static void caretAtEndTest() throws Exception {
498 // Problem only occurs with multiline patterns
499 // containing a beginning-of-line caret "^" followed
500 // by an expression that also matches the empty string.
501 Pattern pattern = Pattern.compile("^x?", Pattern.MULTILINE);
502 Matcher matcher = pattern.matcher("\r");
503 matcher.find();
504 matcher.find();
505 report("Caret at end");
506 }
507
508 // This test is for 4979006
509 // Check to see if word boundary construct properly handles unicode
510 // non spacing marks
511 private static void unicodeWordBoundsTest() throws Exception {
512 String spaces = " ";
513 String wordChar = "a";
514 String nsm = "\u030a";
515
516 assert (Character.getType('\u030a') == Character.NON_SPACING_MARK);
517
518 Pattern pattern = Pattern.compile("\\b");
519 Matcher matcher = pattern.matcher("");
520 // S=other B=word character N=non spacing mark .=word boundary
521 // SS.BB.SS
522 String input = spaces + wordChar + wordChar + spaces;
523 twoFindIndexes(input, matcher, 2, 4);
524 // SS.BBN.SS
525 input = spaces + wordChar +wordChar + nsm + spaces;
526 twoFindIndexes(input, matcher, 2, 5);
527 // SS.BN.SS
528 input = spaces + wordChar + nsm + spaces;
529 twoFindIndexes(input, matcher, 2, 4);
530 // SS.BNN.SS
531 input = spaces + wordChar + nsm + nsm + spaces;
532 twoFindIndexes(input, matcher, 2, 5);
533 // SSN.BB.SS
534 input = spaces + nsm + wordChar + wordChar + spaces;
535 twoFindIndexes(input, matcher, 3, 5);
536 // SS.BNB.SS
537 input = spaces + wordChar + nsm + wordChar + spaces;
538 twoFindIndexes(input, matcher, 2, 5);
539 // SSNNSS
540 input = spaces + nsm + nsm + spaces;
541 matcher.reset(input);
542 if (matcher.find())
543 failCount++;
544 // SSN.BBN.SS
545 input = spaces + nsm + wordChar + wordChar + nsm + spaces;
546 twoFindIndexes(input, matcher, 3, 6);
547
548 report("Unicode word boundary");
549 }
550
551 private static void twoFindIndexes(String input, Matcher matcher, int a,
552 int b) throws Exception
553 {
554 matcher.reset(input);
555 matcher.find();
556 if (matcher.start() != a)
557 failCount++;
558 matcher.find();
559 if (matcher.start() != b)
560 failCount++;
561 }
562
563 // This test is for 6284152
564 static void check(String regex, String input, String[] expected) {
565 List<String> result = new ArrayList<String>();
566 Pattern p = Pattern.compile(regex);
567 Matcher m = p.matcher(input);
568 while (m.find()) {
569 result.add(m.group());
570 }
571 if (!Arrays.asList(expected).equals(result))
572 failCount++;
573 }
574
575 private static void lookbehindTest() throws Exception {
576 //Positive
577 check("(?<=%.{0,5})foo\\d",
578 "%foo1\n%bar foo2\n%bar foo3\n%blahblah foo4\nfoo5",
579 new String[]{"foo1", "foo2", "foo3"});
580
581 //boundary at end of the lookbehind sub-regex should work consistently
582 //with the boundary just after the lookbehind sub-regex
583 check("(?<=.*\\b)foo", "abcd foo", new String[]{"foo"});
584 check("(?<=.*)\\bfoo", "abcd foo", new String[]{"foo"});
585 check("(?<!abc )\\bfoo", "abc foo", new String[0]);
586 check("(?<!abc \\b)foo", "abc foo", new String[0]);
587
588 //Negative
589 check("(?<!%.{0,5})foo\\d",
590 "%foo1\n%bar foo2\n%bar foo3\n%blahblah foo4\nfoo5",
591 new String[] {"foo4", "foo5"});
592
593 //Positive greedy
594 check("(?<=%b{1,4})foo", "%bbbbfoo", new String[] {"foo"});
595
596 //Positive reluctant
597 check("(?<=%b{1,4}?)foo", "%bbbbfoo", new String[] {"foo"});
598
599 //supplementary
600 check("(?<=%b{1,4})fo\ud800\udc00o", "%bbbbfo\ud800\udc00o",
601 new String[] {"fo\ud800\udc00o"});
602 check("(?<=%b{1,4}?)fo\ud800\udc00o", "%bbbbfo\ud800\udc00o",
603 new String[] {"fo\ud800\udc00o"});
604 check("(?<!%b{1,4})fo\ud800\udc00o", "%afo\ud800\udc00o",
605 new String[] {"fo\ud800\udc00o"});
606 check("(?<!%b{1,4}?)fo\ud800\udc00o", "%afo\ud800\udc00o",
607 new String[] {"fo\ud800\udc00o"});
608 report("Lookbehind");
609 }
610
611 // This test is for 4938995
612 // Check to see if weak region boundaries are transparent to
613 // lookahead and lookbehind constructs
614 private static void boundsTest() throws Exception {
615 String fullMessage = "catdogcat";
616 Pattern pattern = Pattern.compile("(?<=cat)dog(?=cat)");
617 Matcher matcher = pattern.matcher("catdogca");
618 matcher.useTransparentBounds(true);
619 if (matcher.find())
620 failCount++;
621 matcher.reset("atdogcat");
622 if (matcher.find())
623 failCount++;
624 matcher.reset(fullMessage);
625 if (!matcher.find())
626 failCount++;
627 matcher.reset(fullMessage);
628 matcher.region(0,9);
629 if (!matcher.find())
630 failCount++;
631 matcher.reset(fullMessage);
632 matcher.region(0,6);
633 if (!matcher.find())
634 failCount++;
635 matcher.reset(fullMessage);
636 matcher.region(3,6);
637 if (!matcher.find())
638 failCount++;
639 matcher.useTransparentBounds(false);
640 if (matcher.find())
641 failCount++;
642
643 // Negative lookahead/lookbehind
644 pattern = Pattern.compile("(?<!cat)dog(?!cat)");
645 matcher = pattern.matcher("dogcat");
646 matcher.useTransparentBounds(true);
647 matcher.region(0,3);
648 if (matcher.find())
649 failCount++;
650 matcher.reset("catdog");
651 matcher.region(3,6);
652 if (matcher.find())
653 failCount++;
654 matcher.useTransparentBounds(false);
655 matcher.reset("dogcat");
656 matcher.region(0,3);
657 if (!matcher.find())
658 failCount++;
659 matcher.reset("catdog");
660 matcher.region(3,6);
661 if (!matcher.find())
662 failCount++;
663
664 report("Region bounds transparency");
665 }
666
667 // This test is for 4945394
668 private static void findFromTest() throws Exception {
669 String message = "This is 40 $0 message.";
670 Pattern pat = Pattern.compile("\\$0");
671 Matcher match = pat.matcher(message);
672 if (!match.find())
673 failCount++;
674 if (match.find())
675 failCount++;
676 if (match.find())
677 failCount++;
678 report("Check for alternating find");
679 }
680
681 // This test is for 4872664 and 4892980
682 private static void negatedCharClassTest() throws Exception {
683 Pattern pattern = Pattern.compile("[^>]");
684 Matcher matcher = pattern.matcher("\u203A");
685 if (!matcher.matches())
686 failCount++;
687 pattern = Pattern.compile("[^fr]");
688 matcher = pattern.matcher("a");
689 if (!matcher.find())
690 failCount++;
691 matcher.reset("\u203A");
692 if (!matcher.find())
693 failCount++;
694 String s = "for";
695 String result[] = s.split("[^fr]");
696 if (!result[0].equals("f"))
697 failCount++;
698 if (!result[1].equals("r"))
699 failCount++;
700 s = "f\u203Ar";
701 result = s.split("[^fr]");
702 if (!result[0].equals("f"))
703 failCount++;
704 if (!result[1].equals("r"))
705 failCount++;
706
707 // Test adding to bits, subtracting a node, then adding to bits again
708 pattern = Pattern.compile("[^f\u203Ar]");
709 matcher = pattern.matcher("a");
710 if (!matcher.find())
711 failCount++;
712 matcher.reset("f");
713 if (matcher.find())
714 failCount++;
715 matcher.reset("\u203A");
716 if (matcher.find())
717 failCount++;
718 matcher.reset("r");
719 if (matcher.find())
720 failCount++;
721 matcher.reset("\u203B");
722 if (!matcher.find())
723 failCount++;
724
725 // Test subtracting a node, adding to bits, subtracting again
726 pattern = Pattern.compile("[^\u203Ar\u203B]");
727 matcher = pattern.matcher("a");
728 if (!matcher.find())
729 failCount++;
730 matcher.reset("\u203A");
731 if (matcher.find())
732 failCount++;
733 matcher.reset("r");
734 if (matcher.find())
735 failCount++;
736 matcher.reset("\u203B");
737 if (matcher.find())
738 failCount++;
739 matcher.reset("\u203C");
740 if (!matcher.find())
741 failCount++;
742
743 report("Negated Character Class");
744 }
745
746 // This test is for 4628291
747 private static void toStringTest() throws Exception {
748 Pattern pattern = Pattern.compile("b+");
749 if (pattern.toString() != "b+")
750 failCount++;
751 Matcher matcher = pattern.matcher("aaabbbccc");
752 String matcherString = matcher.toString(); // unspecified
753 matcher.find();
754 matcherString = matcher.toString(); // unspecified
755 matcher.region(0,3);
756 matcherString = matcher.toString(); // unspecified
757 matcher.reset();
758 matcherString = matcher.toString(); // unspecified
759 report("toString");
760 }
761
762 // This test is for 4808962
763 private static void literalPatternTest() throws Exception {
764 int flags = Pattern.LITERAL;
765
766 Pattern pattern = Pattern.compile("abc\\t$^", flags);
767 check(pattern, "abc\\t$^", true);
768
769 pattern = Pattern.compile(Pattern.quote("abc\\t$^"));
770 check(pattern, "abc\\t$^", true);
771
772 pattern = Pattern.compile("\\Qa^$bcabc\\E", flags);
773 check(pattern, "\\Qa^$bcabc\\E", true);
774 check(pattern, "a^$bcabc", false);
775
776 pattern = Pattern.compile("\\\\Q\\\\E");
777 check(pattern, "\\Q\\E", true);
778
779 pattern = Pattern.compile("\\Qabc\\Eefg\\\\Q\\\\Ehij");
780 check(pattern, "abcefg\\Q\\Ehij", true);
781
782 pattern = Pattern.compile("\\\\\\Q\\\\E");
783 check(pattern, "\\\\\\\\", true);
784
785 pattern = Pattern.compile(Pattern.quote("\\Qa^$bcabc\\E"));
786 check(pattern, "\\Qa^$bcabc\\E", true);
787 check(pattern, "a^$bcabc", false);
788
789 pattern = Pattern.compile(Pattern.quote("\\Qabc\\Edef"));
790 check(pattern, "\\Qabc\\Edef", true);
791 check(pattern, "abcdef", false);
792
793 pattern = Pattern.compile(Pattern.quote("abc\\Edef"));
794 check(pattern, "abc\\Edef", true);
795 check(pattern, "abcdef", false);
796
797 pattern = Pattern.compile(Pattern.quote("\\E"));
798 check(pattern, "\\E", true);
799
800 pattern = Pattern.compile("((((abc.+?:)", flags);
801 check(pattern, "((((abc.+?:)", true);
802
803 flags |= Pattern.MULTILINE;
804
805 pattern = Pattern.compile("^cat$", flags);
806 check(pattern, "abc^cat$def", true);
807 check(pattern, "cat", false);
808
809 flags |= Pattern.CASE_INSENSITIVE;
810
811 pattern = Pattern.compile("abcdef", flags);
812 check(pattern, "ABCDEF", true);
813 check(pattern, "AbCdEf", true);
814
815 flags |= Pattern.DOTALL;
816
817 pattern = Pattern.compile("a...b", flags);
818 check(pattern, "A...b", true);
819 check(pattern, "Axxxb", false);
820
821 flags |= Pattern.CANON_EQ;
822
823 Pattern p = Pattern.compile("testa\u030a", flags);
824 check(pattern, "testa\u030a", false);
825 check(pattern, "test\u00e5", false);
826
827 // Supplementary character test
828 flags = Pattern.LITERAL;
829
830 pattern = Pattern.compile(toSupplementaries("abc\\t$^"), flags);
831 check(pattern, toSupplementaries("abc\\t$^"), true);
832
833 pattern = Pattern.compile(Pattern.quote(toSupplementaries("abc\\t$^")));
834 check(pattern, toSupplementaries("abc\\t$^"), true);
835
836 pattern = Pattern.compile(toSupplementaries("\\Qa^$bcabc\\E"), flags);
837 check(pattern, toSupplementaries("\\Qa^$bcabc\\E"), true);
838 check(pattern, toSupplementaries("a^$bcabc"), false);
839
840 pattern = Pattern.compile(Pattern.quote(toSupplementaries("\\Qa^$bcabc\\E")));
841 check(pattern, toSupplementaries("\\Qa^$bcabc\\E"), true);
842 check(pattern, toSupplementaries("a^$bcabc"), false);
843
844 pattern = Pattern.compile(Pattern.quote(toSupplementaries("\\Qabc\\Edef")));
845 check(pattern, toSupplementaries("\\Qabc\\Edef"), true);
846 check(pattern, toSupplementaries("abcdef"), false);
847
848 pattern = Pattern.compile(Pattern.quote(toSupplementaries("abc\\Edef")));
849 check(pattern, toSupplementaries("abc\\Edef"), true);
850 check(pattern, toSupplementaries("abcdef"), false);
851
852 pattern = Pattern.compile(toSupplementaries("((((abc.+?:)"), flags);
853 check(pattern, toSupplementaries("((((abc.+?:)"), true);
854
855 flags |= Pattern.MULTILINE;
856
857 pattern = Pattern.compile(toSupplementaries("^cat$"), flags);
858 check(pattern, toSupplementaries("abc^cat$def"), true);
859 check(pattern, toSupplementaries("cat"), false);
860
861 flags |= Pattern.DOTALL;
862
863 // note: this is case-sensitive.
864 pattern = Pattern.compile(toSupplementaries("a...b"), flags);
865 check(pattern, toSupplementaries("a...b"), true);
866 check(pattern, toSupplementaries("axxxb"), false);
867
868 flags |= Pattern.CANON_EQ;
869
870 String t = toSupplementaries("test");
871 p = Pattern.compile(t + "a\u030a", flags);
872 check(pattern, t + "a\u030a", false);
873 check(pattern, t + "\u00e5", false);
874
875 report("Literal pattern");
876 }
877
878 // This test is for 4803179
879 // This test is also for 4808962, replacement parts
880 private static void literalReplacementTest() throws Exception {
881 int flags = Pattern.LITERAL;
882
883 Pattern pattern = Pattern.compile("abc", flags);
884 Matcher matcher = pattern.matcher("zzzabczzz");
885 String replaceTest = "$0";
886 String result = matcher.replaceAll(replaceTest);
887 if (!result.equals("zzzabczzz"))
888 failCount++;
889
890 matcher.reset();
891 String literalReplacement = matcher.quoteReplacement(replaceTest);
892 result = matcher.replaceAll(literalReplacement);
893 if (!result.equals("zzz$0zzz"))
894 failCount++;
895
896 matcher.reset();
897 replaceTest = "\\t$\\$";
898 literalReplacement = matcher.quoteReplacement(replaceTest);
899 result = matcher.replaceAll(literalReplacement);
900 if (!result.equals("zzz\\t$\\$zzz"))
901 failCount++;
902
903 // Supplementary character test
904 pattern = Pattern.compile(toSupplementaries("abc"), flags);
905 matcher = pattern.matcher(toSupplementaries("zzzabczzz"));
906 replaceTest = "$0";
907 result = matcher.replaceAll(replaceTest);
908 if (!result.equals(toSupplementaries("zzzabczzz")))
909 failCount++;
910
911 matcher.reset();
912 literalReplacement = matcher.quoteReplacement(replaceTest);
913 result = matcher.replaceAll(literalReplacement);
914 if (!result.equals(toSupplementaries("zzz$0zzz")))
915 failCount++;
916
917 matcher.reset();
918 replaceTest = "\\t$\\$";
919 literalReplacement = matcher.quoteReplacement(replaceTest);
920 result = matcher.replaceAll(literalReplacement);
921 if (!result.equals(toSupplementaries("zzz\\t$\\$zzz")))
922 failCount++;
923
924 // IAE should be thrown if backslash or '$' is the last character
925 // in replacement string
926 try {
927 "\uac00".replaceAll("\uac00", "$");
928 failCount++;
929 } catch (IllegalArgumentException iie) {
930 } catch (Exception e) {
931 failCount++;
932 }
933 try {
934 "\uac00".replaceAll("\uac00", "\\");
935 failCount++;
936 } catch (IllegalArgumentException iie) {
937 } catch (Exception e) {
938 failCount++;
939 }
940 report("Literal replacement");
941 }
942
943 // This test is for 4757029
944 private static void regionTest() throws Exception {
945 Pattern pattern = Pattern.compile("abc");
946 Matcher matcher = pattern.matcher("abcdefabc");
947
948 matcher.region(0,9);
949 if (!matcher.find())
950 failCount++;
951 if (!matcher.find())
952 failCount++;
953 matcher.region(0,3);
954 if (!matcher.find())
955 failCount++;
956 matcher.region(3,6);
957 if (matcher.find())
958 failCount++;
959 matcher.region(0,2);
960 if (matcher.find())
961 failCount++;
962
963 expectRegionFail(matcher, 1, -1);
964 expectRegionFail(matcher, -1, -1);
965 expectRegionFail(matcher, -1, 1);
966 expectRegionFail(matcher, 5, 3);
967 expectRegionFail(matcher, 5, 12);
968 expectRegionFail(matcher, 12, 12);
969
970 pattern = Pattern.compile("^abc$");
971 matcher = pattern.matcher("zzzabczzz");
972 matcher.region(0,9);
973 if (matcher.find())
974 failCount++;
975 matcher.region(3,6);
976 if (!matcher.find())
977 failCount++;
978 matcher.region(3,6);
979 matcher.useAnchoringBounds(false);
980 if (matcher.find())
981 failCount++;
982
983 // Supplementary character test
984 pattern = Pattern.compile(toSupplementaries("abc"));
985 matcher = pattern.matcher(toSupplementaries("abcdefabc"));
986 matcher.region(0,9*2);
987 if (!matcher.find())
988 failCount++;
989 if (!matcher.find())
990 failCount++;
991 matcher.region(0,3*2);
992 if (!matcher.find())
993 failCount++;
994 matcher.region(1,3*2);
995 if (matcher.find())
996 failCount++;
997 matcher.region(3*2,6*2);
998 if (matcher.find())
999 failCount++;
1000 matcher.region(0,2*2);
1001 if (matcher.find())
1002 failCount++;
1003 matcher.region(0,2*2+1);
1004 if (matcher.find())
1005 failCount++;
1006
1007 expectRegionFail(matcher, 1*2, -1);
1008 expectRegionFail(matcher, -1, -1);
1009 expectRegionFail(matcher, -1, 1*2);
1010 expectRegionFail(matcher, 5*2, 3*2);
1011 expectRegionFail(matcher, 5*2, 12*2);
1012 expectRegionFail(matcher, 12*2, 12*2);
1013
1014 pattern = Pattern.compile(toSupplementaries("^abc$"));
1015 matcher = pattern.matcher(toSupplementaries("zzzabczzz"));
1016 matcher.region(0,9*2);
1017 if (matcher.find())
1018 failCount++;
1019 matcher.region(3*2,6*2);
1020 if (!matcher.find())
1021 failCount++;
1022 matcher.region(3*2+1,6*2);
1023 if (matcher.find())
1024 failCount++;
1025 matcher.region(3*2,6*2-1);
1026 if (matcher.find())
1027 failCount++;
1028 matcher.region(3*2,6*2);
1029 matcher.useAnchoringBounds(false);
1030 if (matcher.find())
1031 failCount++;
1032 report("Regions");
1033 }
1034
1035 private static void expectRegionFail(Matcher matcher, int index1,
1036 int index2)
1037 {
1038 try {
1039 matcher.region(index1, index2);
1040 failCount++;
1041 } catch (IndexOutOfBoundsException ioobe) {
1042 // Correct result
1043 } catch (IllegalStateException ise) {
1044 // Correct result
1045 }
1046 }
1047
1048 // This test is for 4803197
1049 private static void escapedSegmentTest() throws Exception {
1050
1051 Pattern pattern = Pattern.compile("\\Qdir1\\dir2\\E");
1052 check(pattern, "dir1\\dir2", true);
1053
1054 pattern = Pattern.compile("\\Qdir1\\dir2\\\\E");
1055 check(pattern, "dir1\\dir2\\", true);
1056
1057 pattern = Pattern.compile("(\\Qdir1\\dir2\\\\E)");
1058 check(pattern, "dir1\\dir2\\", true);
1059
1060 // Supplementary character test
1061 pattern = Pattern.compile(toSupplementaries("\\Qdir1\\dir2\\E"));
1062 check(pattern, toSupplementaries("dir1\\dir2"), true);
1063
1064 pattern = Pattern.compile(toSupplementaries("\\Qdir1\\dir2")+"\\\\E");
1065 check(pattern, toSupplementaries("dir1\\dir2\\"), true);
1066
1067 pattern = Pattern.compile(toSupplementaries("(\\Qdir1\\dir2")+"\\\\E)");
1068 check(pattern, toSupplementaries("dir1\\dir2\\"), true);
1069
1070 report("Escaped segment");
1071 }
1072
1073 // This test is for 4792284
1074 private static void nonCaptureRepetitionTest() throws Exception {
1075 String input = "abcdefgh;";
1076
1077 String[] patterns = new String[] {
1078 "(?:\\w{4})+;",
1079 "(?:\\w{8})*;",
1080 "(?:\\w{2}){2,4};",
1081 "(?:\\w{4}){2,};", // only matches the
1082 ".*?(?:\\w{5})+;", // specified minimum
1083 ".*?(?:\\w{9})*;", // number of reps - OK
1084 "(?:\\w{4})+?;", // lazy repetition - OK
1085 "(?:\\w{4})++;", // possessive repetition - OK
1086 "(?:\\w{2,}?)+;", // non-deterministic - OK
1087 "(\\w{4})+;", // capturing group - OK
1088 };
1089
1090 for (int i = 0; i < patterns.length; i++) {
1091 // Check find()
1092 check(patterns[i], 0, input, input, true);
1093 // Check matches()
1094 Pattern p = Pattern.compile(patterns[i]);
1095 Matcher m = p.matcher(input);
1096
1097 if (m.matches()) {
1098 if (!m.group(0).equals(input))
1099 failCount++;
1100 } else {
1101 failCount++;
1102 }
1103 }
1104
1105 report("Non capturing repetition");
1106 }
1107
1108 // This test is for 6358731
1109 private static void notCapturedGroupCurlyMatchTest() throws Exception {
1110 Pattern pattern = Pattern.compile("(abc)+|(abcd)+");
1111 Matcher matcher = pattern.matcher("abcd");
1112 if (!matcher.matches() ||
1113 matcher.group(1) != null ||
1114 !matcher.group(2).equals("abcd")) {
1115 failCount++;
1116 }
1117 report("Not captured GroupCurly");
1118 }
1119
1120 // This test is for 4706545
1121 private static void javaCharClassTest() throws Exception {
1122 for (int i=0; i<1000; i++) {
1123 char c = (char)generator.nextInt();
1124 check("{javaLowerCase}", c, Character.isLowerCase(c));
1125 check("{javaUpperCase}", c, Character.isUpperCase(c));
1126 check("{javaUpperCase}+", c, Character.isUpperCase(c));
1127 check("{javaTitleCase}", c, Character.isTitleCase(c));
1128 check("{javaDigit}", c, Character.isDigit(c));
1129 check("{javaDefined}", c, Character.isDefined(c));
1130 check("{javaLetter}", c, Character.isLetter(c));
1131 check("{javaLetterOrDigit}", c, Character.isLetterOrDigit(c));
1132 check("{javaJavaIdentifierStart}", c,
1133 Character.isJavaIdentifierStart(c));
1134 check("{javaJavaIdentifierPart}", c,
1135 Character.isJavaIdentifierPart(c));
1136 check("{javaUnicodeIdentifierStart}", c,
1137 Character.isUnicodeIdentifierStart(c));
1138 check("{javaUnicodeIdentifierPart}", c,
1139 Character.isUnicodeIdentifierPart(c));
1140 check("{javaIdentifierIgnorable}", c,
1141 Character.isIdentifierIgnorable(c));
1142 check("{javaSpaceChar}", c, Character.isSpaceChar(c));
1143 check("{javaWhitespace}", c, Character.isWhitespace(c));
1144 check("{javaISOControl}", c, Character.isISOControl(c));
1145 check("{javaMirrored}", c, Character.isMirrored(c));
1146
1147 }
1148
1149 // Supplementary character test
1150 for (int i=0; i<1000; i++) {
1151 int c = generator.nextInt(Character.MAX_CODE_POINT
1152 - Character.MIN_SUPPLEMENTARY_CODE_POINT)
1153 + Character.MIN_SUPPLEMENTARY_CODE_POINT;
1154 check("{javaLowerCase}", c, Character.isLowerCase(c));
1155 check("{javaUpperCase}", c, Character.isUpperCase(c));
1156 check("{javaUpperCase}+", c, Character.isUpperCase(c));
1157 check("{javaTitleCase}", c, Character.isTitleCase(c));
1158 check("{javaDigit}", c, Character.isDigit(c));
1159 check("{javaDefined}", c, Character.isDefined(c));
1160 check("{javaLetter}", c, Character.isLetter(c));
1161 check("{javaLetterOrDigit}", c, Character.isLetterOrDigit(c));
1162 check("{javaJavaIdentifierStart}", c,
1163 Character.isJavaIdentifierStart(c));
1164 check("{javaJavaIdentifierPart}", c,
1165 Character.isJavaIdentifierPart(c));
1166 check("{javaUnicodeIdentifierStart}", c,
1167 Character.isUnicodeIdentifierStart(c));
1168 check("{javaUnicodeIdentifierPart}", c,
1169 Character.isUnicodeIdentifierPart(c));
1170 check("{javaIdentifierIgnorable}", c,
1171 Character.isIdentifierIgnorable(c));
1172 check("{javaSpaceChar}", c, Character.isSpaceChar(c));
1173 check("{javaWhitespace}", c, Character.isWhitespace(c));
1174 check("{javaISOControl}", c, Character.isISOControl(c));
1175 check("{javaMirrored}", c, Character.isMirrored(c));
1176 }
1177
1178 report("Java character classes");
1179 }
1180
1181 // This test is for 4523620
1182 /*
1183 private static void numOccurrencesTest() throws Exception {
1184 Pattern pattern = Pattern.compile("aaa");
1185
1186 if (pattern.numOccurrences("aaaaaa", false) != 2)
1187 failCount++;
1188 if (pattern.numOccurrences("aaaaaa", true) != 4)
1189 failCount++;
1190
1191 pattern = Pattern.compile("^");
1192 if (pattern.numOccurrences("aaaaaa", false) != 1)
1193 failCount++;
1194 if (pattern.numOccurrences("aaaaaa", true) != 1)
1195 failCount++;
1196
1197 report("Number of Occurrences");
1198 }
1199 */
1200
1201 // This test is for 4776374
1202 private static void caretBetweenTerminatorsTest() throws Exception {
1203 int flags1 = Pattern.DOTALL;
1204 int flags2 = Pattern.DOTALL | Pattern.UNIX_LINES;
1205 int flags3 = Pattern.DOTALL | Pattern.UNIX_LINES | Pattern.MULTILINE;
1206 int flags4 = Pattern.DOTALL | Pattern.MULTILINE;
1207
1208 check("^....", flags1, "test\ntest", "test", true);
1209 check(".....^", flags1, "test\ntest", "test", false);
1210 check(".....^", flags1, "test\n", "test", false);
1211 check("....^", flags1, "test\r\n", "test", false);
1212
1213 check("^....", flags2, "test\ntest", "test", true);
1214 check("....^", flags2, "test\ntest", "test", false);
1215 check(".....^", flags2, "test\n", "test", false);
1216 check("....^", flags2, "test\r\n", "test", false);
1217
1218 check("^....", flags3, "test\ntest", "test", true);
1219 check(".....^", flags3, "test\ntest", "test\n", true);
1220 check(".....^", flags3, "test\u0085test", "test\u0085", false);
1221 check(".....^", flags3, "test\n", "test", false);
1222 check(".....^", flags3, "test\r\n", "test", false);
1223 check("......^", flags3, "test\r\ntest", "test\r\n", true);
1224
1225 check("^....", flags4, "test\ntest", "test", true);
1226 check(".....^", flags3, "test\ntest", "test\n", true);
1227 check(".....^", flags4, "test\u0085test", "test\u0085", true);
1228 check(".....^", flags4, "test\n", "test\n", false);
1229 check(".....^", flags4, "test\r\n", "test\r", false);
1230
1231 // Supplementary character test
1232 String t = toSupplementaries("test");
1233 check("^....", flags1, t+"\n"+t, t, true);
1234 check(".....^", flags1, t+"\n"+t, t, false);
1235 check(".....^", flags1, t+"\n", t, false);
1236 check("....^", flags1, t+"\r\n", t, false);
1237
1238 check("^....", flags2, t+"\n"+t, t, true);
1239 check("....^", flags2, t+"\n"+t, t, false);
1240 check(".....^", flags2, t+"\n", t, false);
1241 check("....^", flags2, t+"\r\n", t, false);
1242
1243 check("^....", flags3, t+"\n"+t, t, true);
1244 check(".....^", flags3, t+"\n"+t, t+"\n", true);
1245 check(".....^", flags3, t+"\u0085"+t, t+"\u0085", false);
1246 check(".....^", flags3, t+"\n", t, false);
1247 check(".....^", flags3, t+"\r\n", t, false);
1248 check("......^", flags3, t+"\r\n"+t, t+"\r\n", true);
1249
1250 check("^....", flags4, t+"\n"+t, t, true);
1251 check(".....^", flags3, t+"\n"+t, t+"\n", true);
1252 check(".....^", flags4, t+"\u0085"+t, t+"\u0085", true);
1253 check(".....^", flags4, t+"\n", t+"\n", false);
1254 check(".....^", flags4, t+"\r\n", t+"\r", false);
1255
1256 report("Caret between terminators");
1257 }
1258
1259 // This test is for 4727935
1260 private static void dollarAtEndTest() throws Exception {
1261 int flags1 = Pattern.DOTALL;
1262 int flags2 = Pattern.DOTALL | Pattern.UNIX_LINES;
1263 int flags3 = Pattern.DOTALL | Pattern.MULTILINE;
1264
1265 check("....$", flags1, "test\n", "test", true);
1266 check("....$", flags1, "test\r\n", "test", true);
1267 check(".....$", flags1, "test\n", "test\n", true);
1268 check(".....$", flags1, "test\u0085", "test\u0085", true);
1269 check("....$", flags1, "test\u0085", "test", true);
1270
1271 check("....$", flags2, "test\n", "test", true);
1272 check(".....$", flags2, "test\n", "test\n", true);
1273 check(".....$", flags2, "test\u0085", "test\u0085", true);
1274 check("....$", flags2, "test\u0085", "est\u0085", true);
1275
1276 check("....$.blah", flags3, "test\nblah", "test\nblah", true);
1277 check(".....$.blah", flags3, "test\n\nblah", "test\n\nblah", true);
1278 check("....$blah", flags3, "test\nblah", "!!!!", false);
1279 check(".....$blah", flags3, "test\nblah", "!!!!", false);
1280
1281 // Supplementary character test
1282 String t = toSupplementaries("test");
1283 String b = toSupplementaries("blah");
1284 check("....$", flags1, t+"\n", t, true);
1285 check("....$", flags1, t+"\r\n", t, true);
1286 check(".....$", flags1, t+"\n", t+"\n", true);
1287 check(".....$", flags1, t+"\u0085", t+"\u0085", true);
1288 check("....$", flags1, t+"\u0085", t, true);
1289
1290 check("....$", flags2, t+"\n", t, true);
1291 check(".....$", flags2, t+"\n", t+"\n", true);
1292 check(".....$", flags2, t+"\u0085", t+"\u0085", true);
1293 check("....$", flags2, t+"\u0085", toSupplementaries("est\u0085"), true);
1294
1295 check("....$."+b, flags3, t+"\n"+b, t+"\n"+b, true);
1296 check(".....$."+b, flags3, t+"\n\n"+b, t+"\n\n"+b, true);
1297 check("....$"+b, flags3, t+"\n"+b, "!!!!", false);
1298 check(".....$"+b, flags3, t+"\n"+b, "!!!!", false);
1299
1300 report("Dollar at End");
1301 }
1302
1303 // This test is for 4711773
1304 private static void multilineDollarTest() throws Exception {
1305 Pattern findCR = Pattern.compile("$", Pattern.MULTILINE);
1306 Matcher matcher = findCR.matcher("first bit\nsecond bit");
1307 matcher.find();
1308 if (matcher.start(0) != 9)
1309 failCount++;
1310 matcher.find();
1311 if (matcher.start(0) != 20)
1312 failCount++;
1313
1314 // Supplementary character test
1315 matcher = findCR.matcher(toSupplementaries("first bit\n second bit")); // double BMP chars
1316 matcher.find();
1317 if (matcher.start(0) != 9*2)
1318 failCount++;
1319 matcher.find();
1320 if (matcher.start(0) != 20*2)
1321 failCount++;
1322
1323 report("Multiline Dollar");
1324 }
1325
1326 private static void reluctantRepetitionTest() throws Exception {
1327 Pattern p = Pattern.compile("1(\\s\\S+?){1,3}?[\\s,]2");
1328 check(p, "1 word word word 2", true);
1329 check(p, "1 wor wo w 2", true);
1330 check(p, "1 word word 2", true);
1331 check(p, "1 word 2", true);
1332 check(p, "1 wo w w 2", true);
1333 check(p, "1 wo w 2", true);
1334 check(p, "1 wor w 2", true);
1335
1336 p = Pattern.compile("([a-z])+?c");
1337 Matcher m = p.matcher("ababcdefdec");
1338 check(m, "ababc");
1339
1340 // Supplementary character test
1341 p = Pattern.compile(toSupplementaries("([a-z])+?c"));
1342 m = p.matcher(toSupplementaries("ababcdefdec"));
1343 check(m, toSupplementaries("ababc"));
1344
1345 report("Reluctant Repetition");
1346 }
1347
1348 private static void serializeTest() throws Exception {
1349 String patternStr = "(b)";
1350 String matchStr = "b";
1351 Pattern pattern = Pattern.compile(patternStr);
1352 ByteArrayOutputStream baos = new ByteArrayOutputStream();
1353 ObjectOutputStream oos = new ObjectOutputStream(baos);
1354 oos.writeObject(pattern);
1355 oos.close();
1356 ObjectInputStream ois = new ObjectInputStream(
1357 new ByteArrayInputStream(baos.toByteArray()));
1358 Pattern serializedPattern = (Pattern)ois.readObject();
1359 ois.close();
1360 Matcher matcher = serializedPattern.matcher(matchStr);
1361 if (!matcher.matches())
1362 failCount++;
1363 if (matcher.groupCount() != 1)
1364 failCount++;
1365
1366 report("Serialization");
1367 }
1368
1369 private static void gTest() {
1370 Pattern pattern = Pattern.compile("\\G\\w");
1371 Matcher matcher = pattern.matcher("abc#x#x");
1372 matcher.find();
1373 matcher.find();
1374 matcher.find();
1375 if (matcher.find())
1376 failCount++;
1377
1378 pattern = Pattern.compile("\\GA*");
1379 matcher = pattern.matcher("1A2AA3");
1380 matcher.find();
1381 if (matcher.find())
1382 failCount++;
1383
1384 pattern = Pattern.compile("\\GA*");
1385 matcher = pattern.matcher("1A2AA3");
1386 if (!matcher.find(1))
1387 failCount++;
1388 matcher.find();
1389 if (matcher.find())
1390 failCount++;
1391
1392 report("\\G");
1393 }
1394
1395 private static void zTest() {
1396 Pattern pattern = Pattern.compile("foo\\Z");
1397 // Positives
1398 check(pattern, "foo\u0085", true);
1399 check(pattern, "foo\u2028", true);
1400 check(pattern, "foo\u2029", true);
1401 check(pattern, "foo\n", true);
1402 check(pattern, "foo\r", true);
1403 check(pattern, "foo\r\n", true);
1404 // Negatives
1405 check(pattern, "fooo", false);
1406 check(pattern, "foo\n\r", false);
1407
1408 pattern = Pattern.compile("foo\\Z", Pattern.UNIX_LINES);
1409 // Positives
1410 check(pattern, "foo", true);
1411 check(pattern, "foo\n", true);
1412 // Negatives
1413 check(pattern, "foo\r", false);
1414 check(pattern, "foo\u0085", false);
1415 check(pattern, "foo\u2028", false);
1416 check(pattern, "foo\u2029", false);
1417
1418 report("\\Z");
1419 }
1420
1421 private static void replaceFirstTest() {
1422 Pattern pattern = Pattern.compile("(ab)(c*)");
1423 Matcher matcher = pattern.matcher("abccczzzabcczzzabccc");
1424 if (!matcher.replaceFirst("test").equals("testzzzabcczzzabccc"))
1425 failCount++;
1426
1427 matcher.reset("zzzabccczzzabcczzzabccczzz");
1428 if (!matcher.replaceFirst("test").equals("zzztestzzzabcczzzabccczzz"))
1429 failCount++;
1430
1431 matcher.reset("zzzabccczzzabcczzzabccczzz");
1432 String result = matcher.replaceFirst("$1");
1433 if (!result.equals("zzzabzzzabcczzzabccczzz"))
1434 failCount++;
1435
1436 matcher.reset("zzzabccczzzabcczzzabccczzz");
1437 result = matcher.replaceFirst("$2");
1438 if (!result.equals("zzzccczzzabcczzzabccczzz"))
1439 failCount++;
1440
1441 pattern = Pattern.compile("a*");
1442 matcher = pattern.matcher("aaaaaaaaaa");
1443 if (!matcher.replaceFirst("test").equals("test"))
1444 failCount++;
1445
1446 pattern = Pattern.compile("a+");
1447 matcher = pattern.matcher("zzzaaaaaaaaaa");
1448 if (!matcher.replaceFirst("test").equals("zzztest"))
1449 failCount++;
1450
1451 // Supplementary character test
1452 pattern = Pattern.compile(toSupplementaries("(ab)(c*)"));
1453 matcher = pattern.matcher(toSupplementaries("abccczzzabcczzzabccc"));
1454 if (!matcher.replaceFirst(toSupplementaries("test"))
1455 .equals(toSupplementaries("testzzzabcczzzabccc")))
1456 failCount++;
1457
1458 matcher.reset(toSupplementaries("zzzabccczzzabcczzzabccczzz"));
1459 if (!matcher.replaceFirst(toSupplementaries("test")).
1460 equals(toSupplementaries("zzztestzzzabcczzzabccczzz")))
1461 failCount++;
1462
1463 matcher.reset(toSupplementaries("zzzabccczzzabcczzzabccczzz"));
1464 result = matcher.replaceFirst("$1");
1465 if (!result.equals(toSupplementaries("zzzabzzzabcczzzabccczzz")))
1466 failCount++;
1467
1468 matcher.reset(toSupplementaries("zzzabccczzzabcczzzabccczzz"));
1469 result = matcher.replaceFirst("$2");
1470 if (!result.equals(toSupplementaries("zzzccczzzabcczzzabccczzz")))
1471 failCount++;
1472
1473 pattern = Pattern.compile(toSupplementaries("a*"));
1474 matcher = pattern.matcher(toSupplementaries("aaaaaaaaaa"));
1475 if (!matcher.replaceFirst(toSupplementaries("test")).equals(toSupplementaries("test")))
1476 failCount++;
1477
1478 pattern = Pattern.compile(toSupplementaries("a+"));
1479 matcher = pattern.matcher(toSupplementaries("zzzaaaaaaaaaa"));
1480 if (!matcher.replaceFirst(toSupplementaries("test")).equals(toSupplementaries("zzztest")))
1481 failCount++;
1482
1483 report("Replace First");
1484 }
1485
1486 private static void unixLinesTest() {
1487 Pattern pattern = Pattern.compile(".*");
1488 Matcher matcher = pattern.matcher("aa\u2028blah");
1489 matcher.find();
1490 if (!matcher.group(0).equals("aa"))
1491 failCount++;
1492
1493 pattern = Pattern.compile(".*", Pattern.UNIX_LINES);
1494 matcher = pattern.matcher("aa\u2028blah");
1495 matcher.find();
1496 if (!matcher.group(0).equals("aa\u2028blah"))
1497 failCount++;
1498
1499 pattern = Pattern.compile("[az]$",
1500 Pattern.MULTILINE | Pattern.UNIX_LINES);
1501 matcher = pattern.matcher("aa\u2028zz");
1502 check(matcher, "a\u2028", false);
1503
1504 // Supplementary character test
1505 pattern = Pattern.compile(".*");
1506 matcher = pattern.matcher(toSupplementaries("aa\u2028blah"));
1507 matcher.find();
1508 if (!matcher.group(0).equals(toSupplementaries("aa")))
1509 failCount++;
1510
1511 pattern = Pattern.compile(".*", Pattern.UNIX_LINES);
1512 matcher = pattern.matcher(toSupplementaries("aa\u2028blah"));
1513 matcher.find();
1514 if (!matcher.group(0).equals(toSupplementaries("aa\u2028blah")))
1515 failCount++;
1516
1517 pattern = Pattern.compile(toSupplementaries("[az]$"),
1518 Pattern.MULTILINE | Pattern.UNIX_LINES);
1519 matcher = pattern.matcher(toSupplementaries("aa\u2028zz"));
1520 check(matcher, toSupplementaries("a\u2028"), false);
1521
1522 report("Unix Lines");
1523 }
1524
1525 private static void commentsTest() {
1526 int flags = Pattern.COMMENTS;
1527
1528 Pattern pattern = Pattern.compile("aa \\# aa", flags);
1529 Matcher matcher = pattern.matcher("aa#aa");
1530 if (!matcher.matches())
1531 failCount++;
1532
1533 pattern = Pattern.compile("aa # blah", flags);
1534 matcher = pattern.matcher("aa");
1535 if (!matcher.matches())
1536 failCount++;
1537
1538 pattern = Pattern.compile("aa blah", flags);
1539 matcher = pattern.matcher("aablah");
1540 if (!matcher.matches())
1541 failCount++;
1542
1543 pattern = Pattern.compile("aa # blah blech ", flags);
1544 matcher = pattern.matcher("aa");
1545 if (!matcher.matches())
1546 failCount++;
1547
1548 pattern = Pattern.compile("aa # blah\n ", flags);
1549 matcher = pattern.matcher("aa");
1550 if (!matcher.matches())
1551 failCount++;
1552
1553 pattern = Pattern.compile("aa # blah\nbc # blech", flags);
1554 matcher = pattern.matcher("aabc");
1555 if (!matcher.matches())
1556 failCount++;
1557
1558 pattern = Pattern.compile("aa # blah\nbc# blech", flags);
1559 matcher = pattern.matcher("aabc");
1560 if (!matcher.matches())
1561 failCount++;
1562
1563 pattern = Pattern.compile("aa # blah\nbc\\# blech", flags);
1564 matcher = pattern.matcher("aabc#blech");
1565 if (!matcher.matches())
1566 failCount++;
1567
1568 // Supplementary character test
1569 pattern = Pattern.compile(toSupplementaries("aa \\# aa"), flags);
1570 matcher = pattern.matcher(toSupplementaries("aa#aa"));
1571 if (!matcher.matches())
1572 failCount++;
1573
1574 pattern = Pattern.compile(toSupplementaries("aa # blah"), flags);
1575 matcher = pattern.matcher(toSupplementaries("aa"));
1576 if (!matcher.matches())
1577 failCount++;
1578
1579 pattern = Pattern.compile(toSupplementaries("aa blah"), flags);
1580 matcher = pattern.matcher(toSupplementaries("aablah"));
1581 if (!matcher.matches())
1582 failCount++;
1583
1584 pattern = Pattern.compile(toSupplementaries("aa # blah blech "), flags);
1585 matcher = pattern.matcher(toSupplementaries("aa"));
1586 if (!matcher.matches())
1587 failCount++;
1588
1589 pattern = Pattern.compile(toSupplementaries("aa # blah\n "), flags);
1590 matcher = pattern.matcher(toSupplementaries("aa"));
1591 if (!matcher.matches())
1592 failCount++;
1593
1594 pattern = Pattern.compile(toSupplementaries("aa # blah\nbc # blech"), flags);
1595 matcher = pattern.matcher(toSupplementaries("aabc"));
1596 if (!matcher.matches())
1597 failCount++;
1598
1599 pattern = Pattern.compile(toSupplementaries("aa # blah\nbc# blech"), flags);
1600 matcher = pattern.matcher(toSupplementaries("aabc"));
1601 if (!matcher.matches())
1602 failCount++;
1603
1604 pattern = Pattern.compile(toSupplementaries("aa # blah\nbc\\# blech"), flags);
1605 matcher = pattern.matcher(toSupplementaries("aabc#blech"));
1606 if (!matcher.matches())
1607 failCount++;
1608
1609 report("Comments");
1610 }
1611
1612 private static void caseFoldingTest() { // bug 4504687
1613 int flags = Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE;
1614 Pattern pattern = Pattern.compile("aa", flags);
1615 Matcher matcher = pattern.matcher("ab");
1616 if (matcher.matches())
1617 failCount++;
1618
1619 pattern = Pattern.compile("aA", flags);
1620 matcher = pattern.matcher("ab");
1621 if (matcher.matches())
1622 failCount++;
1623
1624 pattern = Pattern.compile("aa", flags);
1625 matcher = pattern.matcher("aB");
1626 if (matcher.matches())
1627 failCount++;
1628 matcher = pattern.matcher("Ab");
1629 if (matcher.matches())
1630 failCount++;
1631
1632 // ASCII "a"
1633 // Latin-1 Supplement "a" + grave
1634 // Cyrillic "a"
1635 String[] patterns = new String[] {
1636 //single
1637 "a", "\u00e0", "\u0430",
1638 //slice
1639 "ab", "\u00e0\u00e1", "\u0430\u0431",
1640 //class single
1641 "[a]", "[\u00e0]", "[\u0430]",
1642 //class range
1643 "[a-b]", "[\u00e0-\u00e5]", "[\u0430-\u0431]",
1644 //back reference
1645 "(a)\\1", "(\u00e0)\\1", "(\u0430)\\1"
1646 };
1647
1648 String[] texts = new String[] {
1649 "A", "\u00c0", "\u0410",
1650 "AB", "\u00c0\u00c1", "\u0410\u0411",
1651 "A", "\u00c0", "\u0410",
1652 "B", "\u00c2", "\u0411",
1653 "aA", "\u00e0\u00c0", "\u0430\u0410"
1654 };
1655
1656 boolean[] expected = new boolean[] {
1657 true, false, false,
1658 true, false, false,
1659 true, false, false,
1660 true, false, false,
1661 true, false, false
1662 };
1663
1664 flags = Pattern.CASE_INSENSITIVE;
1665 for (int i = 0; i < patterns.length; i++) {
1666 pattern = Pattern.compile(patterns[i], flags);
1667 matcher = pattern.matcher(texts[i]);
1668 if (matcher.matches() != expected[i]) {
1669 System.out.println("<1> Failed at " + i);
1670 failCount++;
1671 }
1672 }
1673
1674 flags = Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE;
1675 for (int i = 0; i < patterns.length; i++) {
1676 pattern = Pattern.compile(patterns[i], flags);
1677 matcher = pattern.matcher(texts[i]);
1678 if (!matcher.matches()) {
1679 System.out.println("<2> Failed at " + i);
1680 failCount++;
1681 }
1682 }
1683 // flag unicode_case alone should do nothing
1684 flags = Pattern.UNICODE_CASE;
1685 for (int i = 0; i < patterns.length; i++) {
1686 pattern = Pattern.compile(patterns[i], flags);
1687 matcher = pattern.matcher(texts[i]);
1688 if (matcher.matches()) {
1689 System.out.println("<3> Failed at " + i);
1690 failCount++;
1691 }
1692 }
1693
1694 // Special cases: i, I, u+0131 and u+0130
1695 flags = Pattern.UNICODE_CASE | Pattern.CASE_INSENSITIVE;
1696 pattern = Pattern.compile("[h-j]+", flags);
1697 if (!pattern.matcher("\u0131\u0130").matches())
1698 failCount++;
1699 report("Case Folding");
1700 }
1701
1702 private static void appendTest() {
1703 Pattern pattern = Pattern.compile("(ab)(cd)");
1704 Matcher matcher = pattern.matcher("abcd");
1705 String result = matcher.replaceAll("$2$1");
1706 if (!result.equals("cdab"))
1707 failCount++;
1708
1709 String s1 = "Swap all: first = 123, second = 456";
1710 String s2 = "Swap one: first = 123, second = 456";
1711 String r = "$3$2$1";
1712 pattern = Pattern.compile("([a-z]+)( *= *)([0-9]+)");
1713 matcher = pattern.matcher(s1);
1714
1715 result = matcher.replaceAll(r);
1716 if (!result.equals("Swap all: 123 = first, 456 = second"))
1717 failCount++;
1718
1719 matcher = pattern.matcher(s2);
1720
1721 if (matcher.find()) {
1722 StringBuffer sb = new StringBuffer();
1723 matcher.appendReplacement(sb, r);
1724 matcher.appendTail(sb);
1725 result = sb.toString();
1726 if (!result.equals("Swap one: 123 = first, second = 456"))
1727 failCount++;
1728 }
1729
1730 // Supplementary character test
1731 pattern = Pattern.compile(toSupplementaries("(ab)(cd)"));
1732 matcher = pattern.matcher(toSupplementaries("abcd"));
1733 result = matcher.replaceAll("$2$1");
1734 if (!result.equals(toSupplementaries("cdab")))
1735 failCount++;
1736
1737 s1 = toSupplementaries("Swap all: first = 123, second = 456");
1738 s2 = toSupplementaries("Swap one: first = 123, second = 456");
1739 r = toSupplementaries("$3$2$1");
1740 pattern = Pattern.compile(toSupplementaries("([a-z]+)( *= *)([0-9]+)"));
1741 matcher = pattern.matcher(s1);
1742
1743 result = matcher.replaceAll(r);
1744 if (!result.equals(toSupplementaries("Swap all: 123 = first, 456 = second")))
1745 failCount++;
1746
1747 matcher = pattern.matcher(s2);
1748
1749 if (matcher.find()) {
1750 StringBuffer sb = new StringBuffer();
1751 matcher.appendReplacement(sb, r);
1752 matcher.appendTail(sb);
1753 result = sb.toString();
1754 if (!result.equals(toSupplementaries("Swap one: 123 = first, second = 456")))
1755 failCount++;
1756 }
1757 report("Append");
1758 }
1759
1760 private static void splitTest() {
1761 Pattern pattern = Pattern.compile(":");
1762 String[] result = pattern.split("foo:and:boo", 2);
1763 if (!result[0].equals("foo"))
1764 failCount++;
1765 if (!result[1].equals("and:boo"))
1766 failCount++;
1767 // Supplementary character test
1768 Pattern patternX = Pattern.compile(toSupplementaries("X"));
1769 result = patternX.split(toSupplementaries("fooXandXboo"), 2);
1770 if (!result[0].equals(toSupplementaries("foo")))
1771 failCount++;
1772 if (!result[1].equals(toSupplementaries("andXboo")))
1773 failCount++;
1774
1775 CharBuffer cb = CharBuffer.allocate(100);
1776 cb.put("foo:and:boo");
1777 cb.flip();
1778 result = pattern.split(cb);
1779 if (!result[0].equals("foo"))
1780 failCount++;
1781 if (!result[1].equals("and"))
1782 failCount++;
1783 if (!result[2].equals("boo"))
1784 failCount++;
1785
1786 // Supplementary character test
1787 CharBuffer cbs = CharBuffer.allocate(100);
1788 cbs.put(toSupplementaries("fooXandXboo"));
1789 cbs.flip();
1790 result = patternX.split(cbs);
1791 if (!result[0].equals(toSupplementaries("foo")))
1792 failCount++;
1793 if (!result[1].equals(toSupplementaries("and")))
1794 failCount++;
1795 if (!result[2].equals(toSupplementaries("boo")))
1796 failCount++;
1797
1798 String source = "0123456789";
1799 for (int limit=-2; limit<3; limit++) {
1800 for (int x=0; x<10; x++) {
1801 result = source.split(Integer.toString(x), limit);
1802 int expectedLength = limit < 1 ? 2 : limit;
1803
1804 if ((limit == 0) && (x == 9)) {
1805 // expected dropping of ""
1806 if (result.length != 1)
1807 failCount++;
1808 if (!result[0].equals("012345678")) {
1809 failCount++;
1810 }
1811 } else {
1812 if (result.length != expectedLength) {
1813 failCount++;
1814 }
1815 if (!result[0].equals(source.substring(0,x))) {
1816 if (limit != 1) {
1817 failCount++;
1818 } else {
1819 if (!result[0].equals(source.substring(0,10))) {
1820 failCount++;
1821 }
1822 }
1823 }
1824 if (expectedLength > 1) { // Check segment 2
1825 if (!result[1].equals(source.substring(x+1,10)))
1826 failCount++;
1827 }
1828 }
1829 }
1830 }
1831 // Check the case for no match found
1832 for (int limit=-2; limit<3; limit++) {
1833 result = source.split("e", limit);
1834 if (result.length != 1)
1835 failCount++;
1836 if (!result[0].equals(source))
1837 failCount++;
1838 }
1839 // Check the case for limit == 0, source = "";
1840 // split() now returns 0-length for empty source "" see #6559590
1841 source = "";
1842 result = source.split("e", 0);
1843 if (result.length != 1)
1844 failCount++;
1845 if (!result[0].equals(source))
1846 failCount++;
1847
1848 // Check both split() and splitAsStraem(), especially for zero-lenth
1849 // input and zero-lenth match cases
1850 String[][] input = new String[][] {
1851 { " ", "Abc Efg Hij" }, // normal non-zero-match
1852 { " ", " Abc Efg Hij" }, // leading empty str for non-zero-match
1853 { " ", "Abc Efg Hij" }, // non-zero-match in the middle
1854 { "(?=\\p{Lu})", "AbcEfgHij" }, // no leading empty str for zero-match
1855 { "(?=\\p{Lu})", "AbcEfg" },
1856 { "(?=\\p{Lu})", "Abc" },
1857 { " ", "" }, // zero-length input
1858 { ".*", "" },
1859
1860 // some tests from PatternStreamTest.java
1861 { "4", "awgqwefg1fefw4vssv1vvv1" },
1862 { "\u00a3a", "afbfq\u00a3abgwgb\u00a3awngnwggw\u00a3a\u00a3ahjrnhneerh" },
1863 { "1", "awgqwefg1fefw4vssv1vvv1" },
1864 { "1", "a\u4ebafg1fefw\u4eba4\u9f9cvssv\u9f9c1v\u672c\u672cvv" },
1865 { "\u56da", "1\u56da23\u56da456\u56da7890" },
1866 { "\u56da", "1\u56da23\u9f9c\u672c\u672c\u56da456\u56da\u9f9c\u672c7890" },
1867 { "\u56da", "" },
1868 { "[ \t,:.]","This is,testing: with\tdifferent separators." }, //multiple septs
1869 { "o", "boo:and:foo" },
1870 { "o", "booooo:and:fooooo" },
1871 { "o", "fooooo:" },
1872 };
1873
1874 String[][] expected = new String[][] {
1875 { "Abc", "Efg", "Hij" },
1876 { "", "Abc", "Efg", "Hij" },
1877 { "Abc", "", "Efg", "Hij" },
1878 { "Abc", "Efg", "Hij" },
1879 { "Abc", "Efg" },
1880 { "Abc" },
1881 { "" },
1882 { "" },
1883
1884 { "awgqwefg1fefw", "vssv1vvv1" },
1885 { "afbfq", "bgwgb", "wngnwggw", "", "hjrnhneerh" },
1886 { "awgqwefg", "fefw4vssv", "vvv" },
1887 { "a\u4ebafg", "fefw\u4eba4\u9f9cvssv\u9f9c", "v\u672c\u672cvv" },
1888 { "1", "23", "456", "7890" },
1889 { "1", "23\u9f9c\u672c\u672c", "456", "\u9f9c\u672c7890" },
1890 { "" },
1891 { "This", "is", "testing", "", "with", "different", "separators" },
1892 { "b", "", ":and:f" },
1893 { "b", "", "", "", "", ":and:f" },
1894 { "f", "", "", "", "", ":" },
1895 };
1896 for (int i = 0; i < input.length; i++) {
1897 pattern = Pattern.compile(input[i][0]);
1898 if (!Arrays.equals(pattern.split(input[i][1]), expected[i])) {
1899 failCount++;
1900 }
1901 if (input[i][1].length() > 0 && // splitAsStream() return empty resulting
1902 // array for zero-length input for now
1903 !Arrays.equals(pattern.splitAsStream(input[i][1]).toArray(),
1904 expected[i])) {
1905 failCount++;
1906 }
1907 }
1908 report("Split");
1909 }
1910
1911 private static void negationTest() {
1912 Pattern pattern = Pattern.compile("[\\[@^]+");
1913 Matcher matcher = pattern.matcher("@@@@[[[[^^^^");
1914 if (!matcher.find())
1915 failCount++;
1916 if (!matcher.group(0).equals("@@@@[[[[^^^^"))
1917 failCount++;
1918 pattern = Pattern.compile("[@\\[^]+");
1919 matcher = pattern.matcher("@@@@[[[[^^^^");
1920 if (!matcher.find())
1921 failCount++;
1922 if (!matcher.group(0).equals("@@@@[[[[^^^^"))
1923 failCount++;
1924 pattern = Pattern.compile("[@\\[^@]+");
1925 matcher = pattern.matcher("@@@@[[[[^^^^");
1926 if (!matcher.find())
1927 failCount++;
1928 if (!matcher.group(0).equals("@@@@[[[[^^^^"))
1929 failCount++;
1930
1931 pattern = Pattern.compile("\\)");
1932 matcher = pattern.matcher("xxx)xxx");
1933 if (!matcher.find())
1934 failCount++;
1935
1936 report("Negation");
1937 }
1938
1939 private static void ampersandTest() {
1940 Pattern pattern = Pattern.compile("[&@]+");
1941 check(pattern, "@@@@&&&&", true);
1942
1943 pattern = Pattern.compile("[@&]+");
1944 check(pattern, "@@@@&&&&", true);
1945
1946 pattern = Pattern.compile("[@\\&]+");
1947 check(pattern, "@@@@&&&&", true);
1948
1949 report("Ampersand");
1950 }
1951
1952 private static void octalTest() throws Exception {
1953 Pattern pattern = Pattern.compile("\\u0007");
1954 Matcher matcher = pattern.matcher("\u0007");
1955 if (!matcher.matches())
1956 failCount++;
1957 pattern = Pattern.compile("\\07");
1958 matcher = pattern.matcher("\u0007");
1959 if (!matcher.matches())
1960 failCount++;
1961 pattern = Pattern.compile("\\007");
1962 matcher = pattern.matcher("\u0007");
1963 if (!matcher.matches())
1964 failCount++;
1965 pattern = Pattern.compile("\\0007");
1966 matcher = pattern.matcher("\u0007");
1967 if (!matcher.matches())
1968 failCount++;
1969 pattern = Pattern.compile("\\040");
1970 matcher = pattern.matcher("\u0020");
1971 if (!matcher.matches())
1972 failCount++;
1973 pattern = Pattern.compile("\\0403");
1974 matcher = pattern.matcher("\u00203");
1975 if (!matcher.matches())
1976 failCount++;
1977 pattern = Pattern.compile("\\0103");
1978 matcher = pattern.matcher("\u0043");
1979 if (!matcher.matches())
1980 failCount++;
1981
1982 report("Octal");
1983 }
1984
1985 private static void longPatternTest() throws Exception {
1986 try {
1987 Pattern pattern = Pattern.compile(
1988 "a 32-character-long pattern xxxx");
1989 pattern = Pattern.compile("a 33-character-long pattern xxxxx");
1990 pattern = Pattern.compile("a thirty four character long regex");
1991 StringBuffer patternToBe = new StringBuffer(101);
1992 for (int i=0; i<100; i++)
1993 patternToBe.append((char)(97 + i%26));
1994 pattern = Pattern.compile(patternToBe.toString());
1995 } catch (PatternSyntaxException e) {
1996 failCount++;
1997 }
1998
1999 // Supplementary character test
2000 try {
2001 Pattern pattern = Pattern.compile(
2002 toSupplementaries("a 32-character-long pattern xxxx"));
2003 pattern = Pattern.compile(toSupplementaries("a 33-character-long pattern xxxxx"));
2004 pattern = Pattern.compile(toSupplementaries("a thirty four character long regex"));
2005 StringBuffer patternToBe = new StringBuffer(101*2);
2006 for (int i=0; i<100; i++)
2007 patternToBe.append(Character.toChars(Character.MIN_SUPPLEMENTARY_CODE_POINT
2008 + 97 + i%26));
2009 pattern = Pattern.compile(patternToBe.toString());
2010 } catch (PatternSyntaxException e) {
2011 failCount++;
2012 }
2013 report("LongPattern");
2014 }
2015
2016 private static void group0Test() throws Exception {
2017 Pattern pattern = Pattern.compile("(tes)ting");
2018 Matcher matcher = pattern.matcher("testing");
2019 check(matcher, "testing");
2020
2021 matcher.reset("testing");
2022 if (matcher.lookingAt()) {
2023 if (!matcher.group(0).equals("testing"))
2024 failCount++;
2025 } else {
2026 failCount++;
2027 }
2028
2029 matcher.reset("testing");
2030 if (matcher.matches()) {
2031 if (!matcher.group(0).equals("testing"))
2032 failCount++;
2033 } else {
2034 failCount++;
2035 }
2036
2037 pattern = Pattern.compile("(tes)ting");
2038 matcher = pattern.matcher("testing");
2039 if (matcher.lookingAt()) {
2040 if (!matcher.group(0).equals("testing"))
2041 failCount++;
2042 } else {
2043 failCount++;
2044 }
2045
2046 pattern = Pattern.compile("^(tes)ting");
2047 matcher = pattern.matcher("testing");
2048 if (matcher.matches()) {
2049 if (!matcher.group(0).equals("testing"))
2050 failCount++;
2051 } else {
2052 failCount++;
2053 }
2054
2055 // Supplementary character test
2056 pattern = Pattern.compile(toSupplementaries("(tes)ting"));
2057 matcher = pattern.matcher(toSupplementaries("testing"));
2058 check(matcher, toSupplementaries("testing"));
2059
2060 matcher.reset(toSupplementaries("testing"));
2061 if (matcher.lookingAt()) {
2062 if (!matcher.group(0).equals(toSupplementaries("testing")))
2063 failCount++;
2064 } else {
2065 failCount++;
2066 }
2067
2068 matcher.reset(toSupplementaries("testing"));
2069 if (matcher.matches()) {
2070 if (!matcher.group(0).equals(toSupplementaries("testing")))
2071 failCount++;
2072 } else {
2073 failCount++;
2074 }
2075
2076 pattern = Pattern.compile(toSupplementaries("(tes)ting"));
2077 matcher = pattern.matcher(toSupplementaries("testing"));
2078 if (matcher.lookingAt()) {
2079 if (!matcher.group(0).equals(toSupplementaries("testing")))
2080 failCount++;
2081 } else {
2082 failCount++;
2083 }
2084
2085 pattern = Pattern.compile(toSupplementaries("^(tes)ting"));
2086 matcher = pattern.matcher(toSupplementaries("testing"));
2087 if (matcher.matches()) {
2088 if (!matcher.group(0).equals(toSupplementaries("testing")))
2089 failCount++;
2090 } else {
2091 failCount++;
2092 }
2093
2094 report("Group0");
2095 }
2096
2097 private static void findIntTest() throws Exception {
2098 Pattern p = Pattern.compile("blah");
2099 Matcher m = p.matcher("zzzzblahzzzzzblah");
2100 boolean result = m.find(2);
2101 if (!result)
2102 failCount++;
2103
2104 p = Pattern.compile("$");
2105 m = p.matcher("1234567890");
2106 result = m.find(10);
2107 if (!result)
2108 failCount++;
2109 try {
2110 result = m.find(11);
2111 failCount++;
2112 } catch (IndexOutOfBoundsException e) {
2113 // correct result
2114 }
2115
2116 // Supplementary character test
2117 p = Pattern.compile(toSupplementaries("blah"));
2118 m = p.matcher(toSupplementaries("zzzzblahzzzzzblah"));
2119 result = m.find(2);
2120 if (!result)
2121 failCount++;
2122
2123 report("FindInt");
2124 }
2125
2126 private static void emptyPatternTest() throws Exception {
2127 Pattern p = Pattern.compile("");
2128 Matcher m = p.matcher("foo");
2129
2130 // Should find empty pattern at beginning of input
2131 boolean result = m.find();
2132 if (result != true)
2133 failCount++;
2134 if (m.start() != 0)
2135 failCount++;
2136
2137 // Should not match entire input if input is not empty
2138 m.reset();
2139 result = m.matches();
2140 if (result == true)
2141 failCount++;
2142
2143 try {
2144 m.start(0);
2145 failCount++;
2146 } catch (IllegalStateException e) {
2147 // Correct result
2148 }
2149
2150 // Should match entire input if input is empty
2151 m.reset("");
2152 result = m.matches();
2153 if (result != true)
2154 failCount++;
2155
2156 result = Pattern.matches("", "");
2157 if (result != true)
2158 failCount++;
2159
2160 result = Pattern.matches("", "foo");
2161 if (result == true)
2162 failCount++;
2163 report("EmptyPattern");
2164 }
2165
2166 private static void charClassTest() throws Exception {
2167 Pattern pattern = Pattern.compile("blah[ab]]blech");
2168 check(pattern, "blahb]blech", true);
2169
2170 pattern = Pattern.compile("[abc[def]]");
2171 check(pattern, "b", true);
2172
2173 // Supplementary character tests
2174 pattern = Pattern.compile(toSupplementaries("blah[ab]]blech"));
2175 check(pattern, toSupplementaries("blahb]blech"), true);
2176
2177 pattern = Pattern.compile(toSupplementaries("[abc[def]]"));
2178 check(pattern, toSupplementaries("b"), true);
2179
2180 try {
2181 // u00ff when UNICODE_CASE
2182 pattern = Pattern.compile("[ab\u00ffcd]",
2183 Pattern.CASE_INSENSITIVE|
2184 Pattern.UNICODE_CASE);
2185 check(pattern, "ab\u00ffcd", true);
2186 check(pattern, "Ab\u0178Cd", true);
2187
2188 // u00b5 when UNICODE_CASE
2189 pattern = Pattern.compile("[ab\u00b5cd]",
2190 Pattern.CASE_INSENSITIVE|
2191 Pattern.UNICODE_CASE);
2192 check(pattern, "ab\u00b5cd", true);
2193 check(pattern, "Ab\u039cCd", true);
2194 } catch (Exception e) { failCount++; }
2195
2196 /* Special cases
2197 (1)LatinSmallLetterLongS u+017f
2198 (2)LatinSmallLetterDotlessI u+0131
2199 (3)LatineCapitalLetterIWithDotAbove u+0130
2200 (4)KelvinSign u+212a
2201 (5)AngstromSign u+212b
2202 */
2203 int flags = Pattern.UNICODE_CASE | Pattern.CASE_INSENSITIVE;
2204 pattern = Pattern.compile("[sik\u00c5]+", flags);
2205 if (!pattern.matcher("\u017f\u0130\u0131\u212a\u212b").matches())
2206 failCount++;
2207
2208 report("CharClass");
2209 }
2210
2211 private static void caretTest() throws Exception {
2212 Pattern pattern = Pattern.compile("\\w*");
2213 Matcher matcher = pattern.matcher("a#bc#def##g");
2214 check(matcher, "a");
2215 check(matcher, "");
2216 check(matcher, "bc");
2217 check(matcher, "");
2218 check(matcher, "def");
2219 check(matcher, "");
2220 check(matcher, "");
2221 check(matcher, "g");
2222 check(matcher, "");
2223 if (matcher.find())
2224 failCount++;
2225
2226 pattern = Pattern.compile("^\\w*");
2227 matcher = pattern.matcher("a#bc#def##g");
2228 check(matcher, "a");
2229 if (matcher.find())
2230 failCount++;
2231
2232 pattern = Pattern.compile("\\w");
2233 matcher = pattern.matcher("abc##x");
2234 check(matcher, "a");
2235 check(matcher, "b");
2236 check(matcher, "c");
2237 check(matcher, "x");
2238 if (matcher.find())
2239 failCount++;
2240
2241 pattern = Pattern.compile("^\\w");
2242 matcher = pattern.matcher("abc##x");
2243 check(matcher, "a");
2244 if (matcher.find())
2245 failCount++;
2246
2247 pattern = Pattern.compile("\\A\\p{Alpha}{3}");
2248 matcher = pattern.matcher("abcdef-ghi\njklmno");
2249 check(matcher, "abc");
2250 if (matcher.find())
2251 failCount++;
2252
2253 pattern = Pattern.compile("^\\p{Alpha}{3}", Pattern.MULTILINE);
2254 matcher = pattern.matcher("abcdef-ghi\njklmno");
2255 check(matcher, "abc");
2256 check(matcher, "jkl");
2257 if (matcher.find())
2258 failCount++;
2259
2260 pattern = Pattern.compile("^", Pattern.MULTILINE);
2261 matcher = pattern.matcher("this is some text");
2262 String result = matcher.replaceAll("X");
2263 if (!result.equals("Xthis is some text"))
2264 failCount++;
2265
2266 pattern = Pattern.compile("^");
2267 matcher = pattern.matcher("this is some text");
2268 result = matcher.replaceAll("X");
2269 if (!result.equals("Xthis is some text"))
2270 failCount++;
2271
2272 pattern = Pattern.compile("^", Pattern.MULTILINE | Pattern.UNIX_LINES);
2273 matcher = pattern.matcher("this is some text\n");
2274 result = matcher.replaceAll("X");
2275 if (!result.equals("Xthis is some text\n"))
2276 failCount++;
2277
2278 report("Caret");
2279 }
2280
2281 private static void groupCaptureTest() throws Exception {
2282 // Independent group
2283 Pattern pattern = Pattern.compile("x+(?>y+)z+");
2284 Matcher matcher = pattern.matcher("xxxyyyzzz");
2285 matcher.find();
2286 try {
2287 String blah = matcher.group(1);
2288 failCount++;
2289 } catch (IndexOutOfBoundsException ioobe) {
2290 // Good result
2291 }
2292 // Pure group
2293 pattern = Pattern.compile("x+(?:y+)z+");
2294 matcher = pattern.matcher("xxxyyyzzz");
2295 matcher.find();
2296 try {
2297 String blah = matcher.group(1);
2298 failCount++;
2299 } catch (IndexOutOfBoundsException ioobe) {
2300 // Good result
2301 }
2302
2303 // Supplementary character tests
2304 // Independent group
2305 pattern = Pattern.compile(toSupplementaries("x+(?>y+)z+"));
2306 matcher = pattern.matcher(toSupplementaries("xxxyyyzzz"));
2307 matcher.find();
2308 try {
2309 String blah = matcher.group(1);
2310 failCount++;
2311 } catch (IndexOutOfBoundsException ioobe) {
2312 // Good result
2313 }
2314 // Pure group
2315 pattern = Pattern.compile(toSupplementaries("x+(?:y+)z+"));
2316 matcher = pattern.matcher(toSupplementaries("xxxyyyzzz"));
2317 matcher.find();
2318 try {
2319 String blah = matcher.group(1);
2320 failCount++;
2321 } catch (IndexOutOfBoundsException ioobe) {
2322 // Good result
2323 }
2324
2325 report("GroupCapture");
2326 }
2327
2328 private static void backRefTest() throws Exception {
2329 Pattern pattern = Pattern.compile("(a*)bc\\1");
2330 check(pattern, "zzzaabcazzz", true);
2331
2332 pattern = Pattern.compile("(a*)bc\\1");
2333 check(pattern, "zzzaabcaazzz", true);
2334
2335 pattern = Pattern.compile("(abc)(def)\\1");
2336 check(pattern, "abcdefabc", true);
2337
2338 pattern = Pattern.compile("(abc)(def)\\3");
2339 check(pattern, "abcdefabc", false);
2340
2341 try {
2342 for (int i = 1; i < 10; i++) {
2343 // Make sure backref 1-9 are always accepted
2344 pattern = Pattern.compile("abcdef\\" + i);
2345 // and fail to match if the target group does not exit
2346 check(pattern, "abcdef", false);
2347 }
2348 } catch(PatternSyntaxException e) {
2349 failCount++;
2350 }
2351
2352 pattern = Pattern.compile("(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)\\11");
2353 check(pattern, "abcdefghija", false);
2354 check(pattern, "abcdefghija1", true);
2355
2356 pattern = Pattern.compile("(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\\11");
2357 check(pattern, "abcdefghijkk", true);
2358
2359 pattern = Pattern.compile("(a)bcdefghij\\11");
2360 check(pattern, "abcdefghija1", true);
2361
2362 // Supplementary character tests
2363 pattern = Pattern.compile(toSupplementaries("(a*)bc\\1"));
2364 check(pattern, toSupplementaries("zzzaabcazzz"), true);
2365
2366 pattern = Pattern.compile(toSupplementaries("(a*)bc\\1"));
2367 check(pattern, toSupplementaries("zzzaabcaazzz"), true);
2368
2369 pattern = Pattern.compile(toSupplementaries("(abc)(def)\\1"));
2370 check(pattern, toSupplementaries("abcdefabc"), true);
2371
2372 pattern = Pattern.compile(toSupplementaries("(abc)(def)\\3"));
2373 check(pattern, toSupplementaries("abcdefabc"), false);
2374
2375 pattern = Pattern.compile(toSupplementaries("(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)\\11"));
2376 check(pattern, toSupplementaries("abcdefghija"), false);
2377 check(pattern, toSupplementaries("abcdefghija1"), true);
2378
2379 pattern = Pattern.compile(toSupplementaries("(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\\11"));
2380 check(pattern, toSupplementaries("abcdefghijkk"), true);
2381
2382 report("BackRef");
2383 }
2384
2385 /**
2386 * Unicode Technical Report #18, section 2.6 End of Line
2387 * There is no empty line to be matched in the sequence \u000D\u000A
2388 * but there is an empty line in the sequence \u000A\u000D.
2389 */
2390 private static void anchorTest() throws Exception {
2391 Pattern p = Pattern.compile("^.*$", Pattern.MULTILINE);
2392 Matcher m = p.matcher("blah1\r\nblah2");
2393 m.find();
2394 m.find();
2395 if (!m.group().equals("blah2"))
2396 failCount++;
2397
2398 m.reset("blah1\n\rblah2");
2399 m.find();
2400 m.find();
2401 m.find();
2402 if (!m.group().equals("blah2"))
2403 failCount++;
2404
2405 // Test behavior of $ with \r\n at end of input
2406 p = Pattern.compile(".+$");
2407 m = p.matcher("blah1\r\n");
2408 if (!m.find())
2409 failCount++;
2410 if (!m.group().equals("blah1"))
2411 failCount++;
2412 if (m.find())
2413 failCount++;
2414
2415 // Test behavior of $ with \r\n at end of input in multiline
2416 p = Pattern.compile(".+$", Pattern.MULTILINE);
2417 m = p.matcher("blah1\r\n");
2418 if (!m.find())
2419 failCount++;
2420 if (m.find())
2421 failCount++;
2422
2423 // Test for $ recognition of \u0085 for bug 4527731
2424 p = Pattern.compile(".+$", Pattern.MULTILINE);
2425 m = p.matcher("blah1\u0085");
2426 if (!m.find())
2427 failCount++;
2428
2429 // Supplementary character test
2430 p = Pattern.compile("^.*$", Pattern.MULTILINE);
2431 m = p.matcher(toSupplementaries("blah1\r\nblah2"));
2432 m.find();
2433 m.find();
2434 if (!m.group().equals(toSupplementaries("blah2")))
2435 failCount++;
2436
2437 m.reset(toSupplementaries("blah1\n\rblah2"));
2438 m.find();
2439 m.find();
2440 m.find();
2441 if (!m.group().equals(toSupplementaries("blah2")))
2442 failCount++;
2443
2444 // Test behavior of $ with \r\n at end of input
2445 p = Pattern.compile(".+$");
2446 m = p.matcher(toSupplementaries("blah1\r\n"));
2447 if (!m.find())
2448 failCount++;
2449 if (!m.group().equals(toSupplementaries("blah1")))
2450 failCount++;
2451 if (m.find())
2452 failCount++;
2453
2454 // Test behavior of $ with \r\n at end of input in multiline
2455 p = Pattern.compile(".+$", Pattern.MULTILINE);
2456 m = p.matcher(toSupplementaries("blah1\r\n"));
2457 if (!m.find())
2458 failCount++;
2459 if (m.find())
2460 failCount++;
2461
2462 // Test for $ recognition of \u0085 for bug 4527731
2463 p = Pattern.compile(".+$", Pattern.MULTILINE);
2464 m = p.matcher(toSupplementaries("blah1\u0085"));
2465 if (!m.find())
2466 failCount++;
2467
2468 report("Anchors");
2469 }
2470
2471 /**
2472 * A basic sanity test of Matcher.lookingAt().
2473 */
2474 private static void lookingAtTest() throws Exception {
2475 Pattern p = Pattern.compile("(ab)(c*)");
2476 Matcher m = p.matcher("abccczzzabcczzzabccc");
2477
2478 if (!m.lookingAt())
2479 failCount++;
2480
2481 if (!m.group().equals(m.group(0)))
2482 failCount++;
2483
2484 m = p.matcher("zzzabccczzzabcczzzabccczzz");
2485 if (m.lookingAt())
2486 failCount++;
2487
2488 // Supplementary character test
2489 p = Pattern.compile(toSupplementaries("(ab)(c*)"));
2490 m = p.matcher(toSupplementaries("abccczzzabcczzzabccc"));
2491
2492 if (!m.lookingAt())
2493 failCount++;
2494
2495 if (!m.group().equals(m.group(0)))
2496 failCount++;
2497
2498 m = p.matcher(toSupplementaries("zzzabccczzzabcczzzabccczzz"));
2499 if (m.lookingAt())
2500 failCount++;
2501
2502 report("Looking At");
2503 }
2504
2505 /**
2506 * A basic sanity test of Matcher.matches().
2507 */
2508 private static void matchesTest() throws Exception {
2509 // matches()
2510 Pattern p = Pattern.compile("ulb(c*)");
2511 Matcher m = p.matcher("ulbcccccc");
2512 if (!m.matches())
2513 failCount++;
2514
2515 // find() but not matches()
2516 m.reset("zzzulbcccccc");
2517 if (m.matches())
2518 failCount++;
2519
2520 // lookingAt() but not matches()
2521 m.reset("ulbccccccdef");
2522 if (m.matches())
2523 failCount++;
2524
2525 // matches()
2526 p = Pattern.compile("a|ad");
2527 m = p.matcher("ad");
2528 if (!m.matches())
2529 failCount++;
2530
2531 // Supplementary character test
2532 // matches()
2533 p = Pattern.compile(toSupplementaries("ulb(c*)"));
2534 m = p.matcher(toSupplementaries("ulbcccccc"));
2535 if (!m.matches())
2536 failCount++;
2537
2538 // find() but not matches()
2539 m.reset(toSupplementaries("zzzulbcccccc"));
2540 if (m.matches())
2541 failCount++;
2542
2543 // lookingAt() but not matches()
2544 m.reset(toSupplementaries("ulbccccccdef"));
2545 if (m.matches())
2546 failCount++;
2547
2548 // matches()
2549 p = Pattern.compile(toSupplementaries("a|ad"));
2550 m = p.matcher(toSupplementaries("ad"));
2551 if (!m.matches())
2552 failCount++;
2553
2554 report("Matches");
2555 }
2556
2557 /**
2558 * A basic sanity test of Pattern.matches().
2559 */
2560 private static void patternMatchesTest() throws Exception {
2561 // matches()
2562 if (!Pattern.matches(toSupplementaries("ulb(c*)"),
2563 toSupplementaries("ulbcccccc")))
2564 failCount++;
2565
2566 // find() but not matches()
2567 if (Pattern.matches(toSupplementaries("ulb(c*)"),
2568 toSupplementaries("zzzulbcccccc")))
2569 failCount++;
2570
2571 // lookingAt() but not matches()
2572 if (Pattern.matches(toSupplementaries("ulb(c*)"),
2573 toSupplementaries("ulbccccccdef")))
2574 failCount++;
2575
2576 // Supplementary character test
2577 // matches()
2578 if (!Pattern.matches(toSupplementaries("ulb(c*)"),
2579 toSupplementaries("ulbcccccc")))
2580 failCount++;
2581
2582 // find() but not matches()
2583 if (Pattern.matches(toSupplementaries("ulb(c*)"),
2584 toSupplementaries("zzzulbcccccc")))
2585 failCount++;
2586
2587 // lookingAt() but not matches()
2588 if (Pattern.matches(toSupplementaries("ulb(c*)"),
2589 toSupplementaries("ulbccccccdef")))
2590 failCount++;
2591
2592 report("Pattern Matches");
2593 }
2594
2595 /**
2596 * Canonical equivalence testing. Tests the ability of the engine
2597 * to match sequences that are not explicitly specified in the
2598 * pattern when they are considered equivalent by the Unicode Standard.
2599 */
2600 private static void ceTest() throws Exception {
2601 // Decomposed char outside char classes
2602 Pattern p = Pattern.compile("testa\u030a", Pattern.CANON_EQ);
2603 Matcher m = p.matcher("test\u00e5");
2604 if (!m.matches())
2605 failCount++;
2606
2607 m.reset("testa\u030a");
2608 if (!m.matches())
2609 failCount++;
2610
2611 // Composed char outside char classes
2612 p = Pattern.compile("test\u00e5", Pattern.CANON_EQ);
2613 m = p.matcher("test\u00e5");
2614 if (!m.matches())
2615 failCount++;
2616
2617 m.reset("testa\u030a");
2618 if (!m.find())
2619 failCount++;
2620
2621 // Decomposed char inside a char class
2622 p = Pattern.compile("test[abca\u030a]", Pattern.CANON_EQ);
2623 m = p.matcher("test\u00e5");
2624 if (!m.find())
2625 failCount++;
2626
2627 m.reset("testa\u030a");
2628 if (!m.find())
2629 failCount++;
2630
2631 // Composed char inside a char class
2632 p = Pattern.compile("test[abc\u00e5def\u00e0]", Pattern.CANON_EQ);
2633 m = p.matcher("test\u00e5");
2634 if (!m.find())
2635 failCount++;
2636
2637 m.reset("testa\u0300");
2638 if (!m.find())
2639 failCount++;
2640
2641 m.reset("testa\u030a");
2642 if (!m.find())
2643 failCount++;
2644
2645 // Marks that cannot legally change order and be equivalent
2646 p = Pattern.compile("testa\u0308\u0300", Pattern.CANON_EQ);
2647 check(p, "testa\u0308\u0300", true);
2648 check(p, "testa\u0300\u0308", false);
2649
2650 // Marks that can legally change order and be equivalent
2651 p = Pattern.compile("testa\u0308\u0323", Pattern.CANON_EQ);
2652 check(p, "testa\u0308\u0323", true);
2653 check(p, "testa\u0323\u0308", true);
2654
2655 // Test all equivalences of the sequence a\u0308\u0323\u0300
2656 p = Pattern.compile("testa\u0308\u0323\u0300", Pattern.CANON_EQ);
2657 check(p, "testa\u0308\u0323\u0300", true);
2658 check(p, "testa\u0323\u0308\u0300", true);
2659 check(p, "testa\u0308\u0300\u0323", true);
2660 check(p, "test\u00e4\u0323\u0300", true);
2661 check(p, "test\u00e4\u0300\u0323", true);
2662
2663 /*
2664 * The following canonical equivalence tests don't work. Bug id: 4916384.
2665 *
2666 // Decomposed hangul (jamos)
2667 p = Pattern.compile("\u1100\u1161", Pattern.CANON_EQ);
2668 m = p.matcher("\u1100\u1161");
2669 if (!m.matches())
2670 failCount++;
2671
2672 m.reset("\uac00");
2673 if (!m.matches())
2674 failCount++;
2675
2676 // Composed hangul
2677 p = Pattern.compile("\uac00", Pattern.CANON_EQ);
2678 m = p.matcher("\u1100\u1161");
2679 if (!m.matches())
2680 failCount++;
2681
2682 m.reset("\uac00");
2683 if (!m.matches())
2684 failCount++;
2685
2686 // Decomposed supplementary outside char classes
2687 p = Pattern.compile("test\ud834\uddbc\ud834\udd6f", Pattern.CANON_EQ);
2688 m = p.matcher("test\ud834\uddc0");
2689 if (!m.matches())
2690 failCount++;
2691
2692 m.reset("test\ud834\uddbc\ud834\udd6f");
2693 if (!m.matches())
2694 failCount++;
2695
2696 // Composed supplementary outside char classes
2697 p = Pattern.compile("test\ud834\uddc0", Pattern.CANON_EQ);
2698 m.reset("test\ud834\uddbc\ud834\udd6f");
2699 if (!m.matches())
2700 failCount++;
2701
2702 m = p.matcher("test\ud834\uddc0");
2703 if (!m.matches())
2704 failCount++;
2705
2706 */
2707
2708 report("Canonical Equivalence");
2709 }
2710
2711 /**
2712 * A basic sanity test of Matcher.replaceAll().
2713 */
2714 private static void globalSubstitute() throws Exception {
2715 // Global substitution with a literal
2716 Pattern p = Pattern.compile("(ab)(c*)");
2717 Matcher m = p.matcher("abccczzzabcczzzabccc");
2718 if (!m.replaceAll("test").equals("testzzztestzzztest"))
2719 failCount++;
2720
2721 m.reset("zzzabccczzzabcczzzabccczzz");
2722 if (!m.replaceAll("test").equals("zzztestzzztestzzztestzzz"))
2723 failCount++;
2724
2725 // Global substitution with groups
2726 m.reset("zzzabccczzzabcczzzabccczzz");
2727 String result = m.replaceAll("$1");
2728 if (!result.equals("zzzabzzzabzzzabzzz"))
2729 failCount++;
2730
2731 // Supplementary character test
2732 // Global substitution with a literal
2733 p = Pattern.compile(toSupplementaries("(ab)(c*)"));
2734 m = p.matcher(toSupplementaries("abccczzzabcczzzabccc"));
2735 if (!m.replaceAll(toSupplementaries("test")).
2736 equals(toSupplementaries("testzzztestzzztest")))
2737 failCount++;
2738
2739 m.reset(toSupplementaries("zzzabccczzzabcczzzabccczzz"));
2740 if (!m.replaceAll(toSupplementaries("test")).
2741 equals(toSupplementaries("zzztestzzztestzzztestzzz")))
2742 failCount++;
2743
2744 // Global substitution with groups
2745 m.reset(toSupplementaries("zzzabccczzzabcczzzabccczzz"));
2746 result = m.replaceAll("$1");
2747 if (!result.equals(toSupplementaries("zzzabzzzabzzzabzzz")))
2748 failCount++;
2749
2750 report("Global Substitution");
2751 }
2752
2753 /**
2754 * Tests the usage of Matcher.appendReplacement() with literal
2755 * and group substitutions.
2756 */
2757 private static void stringbufferSubstitute() throws Exception {
2758 // SB substitution with literal
2759 String blah = "zzzblahzzz";
2760 Pattern p = Pattern.compile("blah");
2761 Matcher m = p.matcher(blah);
2762 StringBuffer result = new StringBuffer();
2763 try {
2764 m.appendReplacement(result, "blech");
2765 failCount++;
2766 } catch (IllegalStateException e) {
2767 }
2768 m.find();
2769 m.appendReplacement(result, "blech");
2770 if (!result.toString().equals("zzzblech"))
2771 failCount++;
2772
2773 m.appendTail(result);
2774 if (!result.toString().equals("zzzblechzzz"))
2775 failCount++;
2776
2777 // SB substitution with groups
2778 blah = "zzzabcdzzz";
2779 p = Pattern.compile("(ab)(cd)*");
2780 m = p.matcher(blah);
2781 result = new StringBuffer();
2782 try {
2783 m.appendReplacement(result, "$1");
2784 failCount++;
2785 } catch (IllegalStateException e) {
2786 }
2787 m.find();
2788 m.appendReplacement(result, "$1");
2789 if (!result.toString().equals("zzzab"))
2790 failCount++;
2791
2792 m.appendTail(result);
2793 if (!result.toString().equals("zzzabzzz"))
2794 failCount++;
2795
2796 // SB substitution with 3 groups
2797 blah = "zzzabcdcdefzzz";
2798 p = Pattern.compile("(ab)(cd)*(ef)");
2799 m = p.matcher(blah);
2800 result = new StringBuffer();
2801 try {
2802 m.appendReplacement(result, "$1w$2w$3");
2803 failCount++;
2804 } catch (IllegalStateException e) {
2805 }
2806 m.find();
2807 m.appendReplacement(result, "$1w$2w$3");
2808 if (!result.toString().equals("zzzabwcdwef"))
2809 failCount++;
2810
2811 m.appendTail(result);
2812 if (!result.toString().equals("zzzabwcdwefzzz"))
2813 failCount++;
2814
2815 // SB substitution with groups and three matches
2816 // skipping middle match
2817 blah = "zzzabcdzzzabcddzzzabcdzzz";
2818 p = Pattern.compile("(ab)(cd*)");
2819 m = p.matcher(blah);
2820 result = new StringBuffer();
2821 try {
2822 m.appendReplacement(result, "$1");
2823 failCount++;
2824 } catch (IllegalStateException e) {
2825 }
2826 m.find();
2827 m.appendReplacement(result, "$1");
2828 if (!result.toString().equals("zzzab"))
2829 failCount++;
2830
2831 m.find();
2832 m.find();
2833 m.appendReplacement(result, "$2");
2834 if (!result.toString().equals("zzzabzzzabcddzzzcd"))
2835 failCount++;
2836
2837 m.appendTail(result);
2838 if (!result.toString().equals("zzzabzzzabcddzzzcdzzz"))
2839 failCount++;
2840
2841 // Check to make sure escaped $ is ignored
2842 blah = "zzzabcdcdefzzz";
2843 p = Pattern.compile("(ab)(cd)*(ef)");
2844 m = p.matcher(blah);
2845 result = new StringBuffer();
2846 m.find();
2847 m.appendReplacement(result, "$1w\\$2w$3");
2848 if (!result.toString().equals("zzzabw$2wef"))
2849 failCount++;
2850
2851 m.appendTail(result);
2852 if (!result.toString().equals("zzzabw$2wefzzz"))
2853 failCount++;
2854
2855 // Check to make sure a reference to nonexistent group causes error
2856 blah = "zzzabcdcdefzzz";
2857 p = Pattern.compile("(ab)(cd)*(ef)");
2858 m = p.matcher(blah);
2859 result = new StringBuffer();
2860 m.find();
2861 try {
2862 m.appendReplacement(result, "$1w$5w$3");
2863 failCount++;
2864 } catch (IndexOutOfBoundsException ioobe) {
2865 // Correct result
2866 }
2867
2868 // Check double digit group references
2869 blah = "zzz123456789101112zzz";
2870 p = Pattern.compile("(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)");
2871 m = p.matcher(blah);
2872 result = new StringBuffer();
2873 m.find();
2874 m.appendReplacement(result, "$1w$11w$3");
2875 if (!result.toString().equals("zzz1w11w3"))
2876 failCount++;
2877
2878 // Check to make sure it backs off $15 to $1 if only three groups
2879 blah = "zzzabcdcdefzzz";
2880 p = Pattern.compile("(ab)(cd)*(ef)");
2881 m = p.matcher(blah);
2882 result = new StringBuffer();
2883 m.find();
2884 m.appendReplacement(result, "$1w$15w$3");
2885 if (!result.toString().equals("zzzabwab5wef"))
2886 failCount++;
2887
2888
2889 // Supplementary character test
2890 // SB substitution with literal
2891 blah = toSupplementaries("zzzblahzzz");
2892 p = Pattern.compile(toSupplementaries("blah"));
2893 m = p.matcher(blah);
2894 result = new StringBuffer();
2895 try {
2896 m.appendReplacement(result, toSupplementaries("blech"));
2897 failCount++;
2898 } catch (IllegalStateException e) {
2899 }
2900 m.find();
2901 m.appendReplacement(result, toSupplementaries("blech"));
2902 if (!result.toString().equals(toSupplementaries("zzzblech")))
2903 failCount++;
2904
2905 m.appendTail(result);
2906 if (!result.toString().equals(toSupplementaries("zzzblechzzz")))
2907 failCount++;
2908
2909 // SB substitution with groups
2910 blah = toSupplementaries("zzzabcdzzz");
2911 p = Pattern.compile(toSupplementaries("(ab)(cd)*"));
2912 m = p.matcher(blah);
2913 result = new StringBuffer();
2914 try {
2915 m.appendReplacement(result, "$1");
2916 failCount++;
2917 } catch (IllegalStateException e) {
2918 }
2919 m.find();
2920 m.appendReplacement(result, "$1");
2921 if (!result.toString().equals(toSupplementaries("zzzab")))
2922 failCount++;
2923
2924 m.appendTail(result);
2925 if (!result.toString().equals(toSupplementaries("zzzabzzz")))
2926 failCount++;
2927
2928 // SB substitution with 3 groups
2929 blah = toSupplementaries("zzzabcdcdefzzz");
2930 p = Pattern.compile(toSupplementaries("(ab)(cd)*(ef)"));
2931 m = p.matcher(blah);
2932 result = new StringBuffer();
2933 try {
2934 m.appendReplacement(result, toSupplementaries("$1w$2w$3"));
2935 failCount++;
2936 } catch (IllegalStateException e) {
2937 }
2938 m.find();
2939 m.appendReplacement(result, toSupplementaries("$1w$2w$3"));
2940 if (!result.toString().equals(toSupplementaries("zzzabwcdwef")))
2941 failCount++;
2942
2943 m.appendTail(result);
2944 if (!result.toString().equals(toSupplementaries("zzzabwcdwefzzz")))
2945 failCount++;
2946
2947 // SB substitution with groups and three matches
2948 // skipping middle match
2949 blah = toSupplementaries("zzzabcdzzzabcddzzzabcdzzz");
2950 p = Pattern.compile(toSupplementaries("(ab)(cd*)"));
2951 m = p.matcher(blah);
2952 result = new StringBuffer();
2953 try {
2954 m.appendReplacement(result, "$1");
2955 failCount++;
2956 } catch (IllegalStateException e) {
2957 }
2958 m.find();
2959 m.appendReplacement(result, "$1");
2960 if (!result.toString().equals(toSupplementaries("zzzab")))
2961 failCount++;
2962
2963 m.find();
2964 m.find();
2965 m.appendReplacement(result, "$2");
2966 if (!result.toString().equals(toSupplementaries("zzzabzzzabcddzzzcd")))
2967 failCount++;
2968
2969 m.appendTail(result);
2970 if (!result.toString().equals(toSupplementaries("zzzabzzzabcddzzzcdzzz")))
2971 failCount++;
2972
2973 // Check to make sure escaped $ is ignored
2974 blah = toSupplementaries("zzzabcdcdefzzz");
2975 p = Pattern.compile(toSupplementaries("(ab)(cd)*(ef)"));
2976 m = p.matcher(blah);
2977 result = new StringBuffer();
2978 m.find();
2979 m.appendReplacement(result, toSupplementaries("$1w\\$2w$3"));
2980 if (!result.toString().equals(toSupplementaries("zzzabw$2wef")))
2981 failCount++;
2982
2983 m.appendTail(result);
2984 if (!result.toString().equals(toSupplementaries("zzzabw$2wefzzz")))
2985 failCount++;
2986
2987 // Check to make sure a reference to nonexistent group causes error
2988 blah = toSupplementaries("zzzabcdcdefzzz");
2989 p = Pattern.compile(toSupplementaries("(ab)(cd)*(ef)"));
2990 m = p.matcher(blah);
2991 result = new StringBuffer();
2992 m.find();
2993 try {
2994 m.appendReplacement(result, toSupplementaries("$1w$5w$3"));
2995 failCount++;
2996 } catch (IndexOutOfBoundsException ioobe) {
2997 // Correct result
2998 }
2999
3000 // Check double digit group references
3001 blah = toSupplementaries("zzz123456789101112zzz");
3002 p = Pattern.compile("(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)");
3003 m = p.matcher(blah);
3004 result = new StringBuffer();
3005 m.find();
3006 m.appendReplacement(result, toSupplementaries("$1w$11w$3"));
3007 if (!result.toString().equals(toSupplementaries("zzz1w11w3")))
3008 failCount++;
3009
3010 // Check to make sure it backs off $15 to $1 if only three groups
3011 blah = toSupplementaries("zzzabcdcdefzzz");
3012 p = Pattern.compile(toSupplementaries("(ab)(cd)*(ef)"));
3013 m = p.matcher(blah);
3014 result = new StringBuffer();
3015 m.find();
3016 m.appendReplacement(result, toSupplementaries("$1w$15w$3"));
3017 if (!result.toString().equals(toSupplementaries("zzzabwab5wef")))
3018 failCount++;
3019
3020 // Check nothing has been appended into the output buffer if
3021 // the replacement string triggers IllegalArgumentException.
3022 p = Pattern.compile("(abc)");
3023 m = p.matcher("abcd");
3024 result = new StringBuffer();
3025 m.find();
3026 try {
3027 m.appendReplacement(result, ("xyz$g"));
3028 failCount++;
3029 } catch (IllegalArgumentException iae) {
3030 if (result.length() != 0)
3031 failCount++;
3032 }
3033
3034 report("SB Substitution");
3035 }
3036
3037 /**
3038 * Tests the usage of Matcher.appendReplacement() with literal
3039 * and group substitutions.
3040 */
3041 private static void stringbuilderSubstitute() throws Exception {
3042 // SB substitution with literal
3043 String blah = "zzzblahzzz";
3044 Pattern p = Pattern.compile("blah");
3045 Matcher m = p.matcher(blah);
3046 StringBuilder result = new StringBuilder();
3047 try {
3048 m.appendReplacement(result, "blech");
3049 failCount++;
3050 } catch (IllegalStateException e) {
3051 }
3052 m.find();
3053 m.appendReplacement(result, "blech");
3054 if (!result.toString().equals("zzzblech"))
3055 failCount++;
3056
3057 m.appendTail(result);
3058 if (!result.toString().equals("zzzblechzzz"))
3059 failCount++;
3060
3061 // SB substitution with groups
3062 blah = "zzzabcdzzz";
3063 p = Pattern.compile("(ab)(cd)*");
3064 m = p.matcher(blah);
3065 result = new StringBuilder();
3066 try {
3067 m.appendReplacement(result, "$1");
3068 failCount++;
3069 } catch (IllegalStateException e) {
3070 }
3071 m.find();
3072 m.appendReplacement(result, "$1");
3073 if (!result.toString().equals("zzzab"))
3074 failCount++;
3075
3076 m.appendTail(result);
3077 if (!result.toString().equals("zzzabzzz"))
3078 failCount++;
3079
3080 // SB substitution with 3 groups
3081 blah = "zzzabcdcdefzzz";
3082 p = Pattern.compile("(ab)(cd)*(ef)");
3083 m = p.matcher(blah);
3084 result = new StringBuilder();
3085 try {
3086 m.appendReplacement(result, "$1w$2w$3");
3087 failCount++;
3088 } catch (IllegalStateException e) {
3089 }
3090 m.find();
3091 m.appendReplacement(result, "$1w$2w$3");
3092 if (!result.toString().equals("zzzabwcdwef"))
3093 failCount++;
3094
3095 m.appendTail(result);
3096 if (!result.toString().equals("zzzabwcdwefzzz"))
3097 failCount++;
3098
3099 // SB substitution with groups and three matches
3100 // skipping middle match
3101 blah = "zzzabcdzzzabcddzzzabcdzzz";
3102 p = Pattern.compile("(ab)(cd*)");
3103 m = p.matcher(blah);
3104 result = new StringBuilder();
3105 try {
3106 m.appendReplacement(result, "$1");
3107 failCount++;
3108 } catch (IllegalStateException e) {
3109 }
3110 m.find();
3111 m.appendReplacement(result, "$1");
3112 if (!result.toString().equals("zzzab"))
3113 failCount++;
3114
3115 m.find();
3116 m.find();
3117 m.appendReplacement(result, "$2");
3118 if (!result.toString().equals("zzzabzzzabcddzzzcd"))
3119 failCount++;
3120
3121 m.appendTail(result);
3122 if (!result.toString().equals("zzzabzzzabcddzzzcdzzz"))
3123 failCount++;
3124
3125 // Check to make sure escaped $ is ignored
3126 blah = "zzzabcdcdefzzz";
3127 p = Pattern.compile("(ab)(cd)*(ef)");
3128 m = p.matcher(blah);
3129 result = new StringBuilder();
3130 m.find();
3131 m.appendReplacement(result, "$1w\\$2w$3");
3132 if (!result.toString().equals("zzzabw$2wef"))
3133 failCount++;
3134
3135 m.appendTail(result);
3136 if (!result.toString().equals("zzzabw$2wefzzz"))
3137 failCount++;
3138
3139 // Check to make sure a reference to nonexistent group causes error
3140 blah = "zzzabcdcdefzzz";
3141 p = Pattern.compile("(ab)(cd)*(ef)");
3142 m = p.matcher(blah);
3143 result = new StringBuilder();
3144 m.find();
3145 try {
3146 m.appendReplacement(result, "$1w$5w$3");
3147 failCount++;
3148 } catch (IndexOutOfBoundsException ioobe) {
3149 // Correct result
3150 }
3151
3152 // Check double digit group references
3153 blah = "zzz123456789101112zzz";
3154 p = Pattern.compile("(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)");
3155 m = p.matcher(blah);
3156 result = new StringBuilder();
3157 m.find();
3158 m.appendReplacement(result, "$1w$11w$3");
3159 if (!result.toString().equals("zzz1w11w3"))
3160 failCount++;
3161
3162 // Check to make sure it backs off $15 to $1 if only three groups
3163 blah = "zzzabcdcdefzzz";
3164 p = Pattern.compile("(ab)(cd)*(ef)");
3165 m = p.matcher(blah);
3166 result = new StringBuilder();
3167 m.find();
3168 m.appendReplacement(result, "$1w$15w$3");
3169 if (!result.toString().equals("zzzabwab5wef"))
3170 failCount++;
3171
3172
3173 // Supplementary character test
3174 // SB substitution with literal
3175 blah = toSupplementaries("zzzblahzzz");
3176 p = Pattern.compile(toSupplementaries("blah"));
3177 m = p.matcher(blah);
3178 result = new StringBuilder();
3179 try {
3180 m.appendReplacement(result, toSupplementaries("blech"));
3181 failCount++;
3182 } catch (IllegalStateException e) {
3183 }
3184 m.find();
3185 m.appendReplacement(result, toSupplementaries("blech"));
3186 if (!result.toString().equals(toSupplementaries("zzzblech")))
3187 failCount++;
3188 m.appendTail(result);
3189 if (!result.toString().equals(toSupplementaries("zzzblechzzz")))
3190 failCount++;
3191
3192 // SB substitution with groups
3193 blah = toSupplementaries("zzzabcdzzz");
3194 p = Pattern.compile(toSupplementaries("(ab)(cd)*"));
3195 m = p.matcher(blah);
3196 result = new StringBuilder();
3197 try {
3198 m.appendReplacement(result, "$1");
3199 failCount++;
3200 } catch (IllegalStateException e) {
3201 }
3202 m.find();
3203 m.appendReplacement(result, "$1");
3204 if (!result.toString().equals(toSupplementaries("zzzab")))
3205 failCount++;
3206
3207 m.appendTail(result);
3208 if (!result.toString().equals(toSupplementaries("zzzabzzz")))
3209 failCount++;
3210
3211 // SB substitution with 3 groups
3212 blah = toSupplementaries("zzzabcdcdefzzz");
3213 p = Pattern.compile(toSupplementaries("(ab)(cd)*(ef)"));
3214 m = p.matcher(blah);
3215 result = new StringBuilder();
3216 try {
3217 m.appendReplacement(result, toSupplementaries("$1w$2w$3"));
3218 failCount++;
3219 } catch (IllegalStateException e) {
3220 }
3221 m.find();
3222 m.appendReplacement(result, toSupplementaries("$1w$2w$3"));
3223 if (!result.toString().equals(toSupplementaries("zzzabwcdwef")))
3224 failCount++;
3225
3226 m.appendTail(result);
3227 if (!result.toString().equals(toSupplementaries("zzzabwcdwefzzz")))
3228 failCount++;
3229
3230 // SB substitution with groups and three matches
3231 // skipping middle match
3232 blah = toSupplementaries("zzzabcdzzzabcddzzzabcdzzz");
3233 p = Pattern.compile(toSupplementaries("(ab)(cd*)"));
3234 m = p.matcher(blah);
3235 result = new StringBuilder();
3236 try {
3237 m.appendReplacement(result, "$1");
3238 failCount++;
3239 } catch (IllegalStateException e) {
3240 }
3241 m.find();
3242 m.appendReplacement(result, "$1");
3243 if (!result.toString().equals(toSupplementaries("zzzab")))
3244 failCount++;
3245
3246 m.find();
3247 m.find();
3248 m.appendReplacement(result, "$2");
3249 if (!result.toString().equals(toSupplementaries("zzzabzzzabcddzzzcd")))
3250 failCount++;
3251
3252 m.appendTail(result);
3253 if (!result.toString().equals(toSupplementaries("zzzabzzzabcddzzzcdzzz")))
3254 failCount++;
3255
3256 // Check to make sure escaped $ is ignored
3257 blah = toSupplementaries("zzzabcdcdefzzz");
3258 p = Pattern.compile(toSupplementaries("(ab)(cd)*(ef)"));
3259 m = p.matcher(blah);
3260 result = new StringBuilder();
3261 m.find();
3262 m.appendReplacement(result, toSupplementaries("$1w\\$2w$3"));
3263 if (!result.toString().equals(toSupplementaries("zzzabw$2wef")))
3264 failCount++;
3265
3266 m.appendTail(result);
3267 if (!result.toString().equals(toSupplementaries("zzzabw$2wefzzz")))
3268 failCount++;
3269
3270 // Check to make sure a reference to nonexistent group causes error
3271 blah = toSupplementaries("zzzabcdcdefzzz");
3272 p = Pattern.compile(toSupplementaries("(ab)(cd)*(ef)"));
3273 m = p.matcher(blah);
3274 result = new StringBuilder();
3275 m.find();
3276 try {
3277 m.appendReplacement(result, toSupplementaries("$1w$5w$3"));
3278 failCount++;
3279 } catch (IndexOutOfBoundsException ioobe) {
3280 // Correct result
3281 }
3282 // Check double digit group references
3283 blah = toSupplementaries("zzz123456789101112zzz");
3284 p = Pattern.compile("(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)");
3285 m = p.matcher(blah);
3286 result = new StringBuilder();
3287 m.find();
3288 m.appendReplacement(result, toSupplementaries("$1w$11w$3"));
3289 if (!result.toString().equals(toSupplementaries("zzz1w11w3")))
3290 failCount++;
3291
3292 // Check to make sure it backs off $15 to $1 if only three groups
3293 blah = toSupplementaries("zzzabcdcdefzzz");
3294 p = Pattern.compile(toSupplementaries("(ab)(cd)*(ef)"));
3295 m = p.matcher(blah);
3296 result = new StringBuilder();
3297 m.find();
3298 m.appendReplacement(result, toSupplementaries("$1w$15w$3"));
3299 if (!result.toString().equals(toSupplementaries("zzzabwab5wef")))
3300 failCount++;
3301 // Check nothing has been appended into the output buffer if
3302 // the replacement string triggers IllegalArgumentException.
3303 p = Pattern.compile("(abc)");
3304 m = p.matcher("abcd");
3305 result = new StringBuilder();
3306 m.find();
3307 try {
3308 m.appendReplacement(result, ("xyz$g"));
3309 failCount++;
3310 } catch (IllegalArgumentException iae) {
3311 if (result.length() != 0)
3312 failCount++;
3313 }
3314 report("SB Substitution 2");
3315 }
3316
3317 /*
3318 * 5 groups of characters are created to make a substitution string.
3319 * A base string will be created including random lead chars, the
3320 * substitution string, and random trailing chars.
3321 * A pattern containing the 5 groups is searched for and replaced with:
3322 * random group + random string + random group.
3323 * The results are checked for correctness.
3324 */
3325 private static void substitutionBasher() {
3326 for (int runs = 0; runs<1000; runs++) {
3327 // Create a base string to work in
3328 int leadingChars = generator.nextInt(10);
3329 StringBuffer baseBuffer = new StringBuffer(100);
3330 String leadingString = getRandomAlphaString(leadingChars);
3331 baseBuffer.append(leadingString);
3332
3333 // Create 5 groups of random number of random chars
3334 // Create the string to substitute
3335 // Create the pattern string to search for
3336 StringBuffer bufferToSub = new StringBuffer(25);
3337 StringBuffer bufferToPat = new StringBuffer(50);
3338 String[] groups = new String[5];
3339 for(int i=0; i<5; i++) {
3340 int aGroupSize = generator.nextInt(5)+1;
3341 groups[i] = getRandomAlphaString(aGroupSize);
3342 bufferToSub.append(groups[i]);
3343 bufferToPat.append('(');
3344 bufferToPat.append(groups[i]);
3345 bufferToPat.append(')');
3346 }
3347 String stringToSub = bufferToSub.toString();
3348 String pattern = bufferToPat.toString();
3349
3350 // Place sub string into working string at random index
3351 baseBuffer.append(stringToSub);
3352
3353 // Append random chars to end
3354 int trailingChars = generator.nextInt(10);
3355 String trailingString = getRandomAlphaString(trailingChars);
3356 baseBuffer.append(trailingString);
3357 String baseString = baseBuffer.toString();
3358
3359 // Create test pattern and matcher
3360 Pattern p = Pattern.compile(pattern);
3361 Matcher m = p.matcher(baseString);
3362
3363 // Reject candidate if pattern happens to start early
3364 m.find();
3365 if (m.start() < leadingChars)
3366 continue;
3367
3368 // Reject candidate if more than one match
3369 if (m.find())
3370 continue;
3371
3372 // Construct a replacement string with :
3373 // random group + random string + random group
3374 StringBuffer bufferToRep = new StringBuffer();
3375 int groupIndex1 = generator.nextInt(5);
3376 bufferToRep.append("$" + (groupIndex1 + 1));
3377 String randomMidString = getRandomAlphaString(5);
3378 bufferToRep.append(randomMidString);
3379 int groupIndex2 = generator.nextInt(5);
3380 bufferToRep.append("$" + (groupIndex2 + 1));
3381 String replacement = bufferToRep.toString();
3382
3383 // Do the replacement
3384 String result = m.replaceAll(replacement);
3385
3386 // Construct expected result
3387 StringBuffer bufferToRes = new StringBuffer();
3388 bufferToRes.append(leadingString);
3389 bufferToRes.append(groups[groupIndex1]);
3390 bufferToRes.append(randomMidString);
3391 bufferToRes.append(groups[groupIndex2]);
3392 bufferToRes.append(trailingString);
3393 String expectedResult = bufferToRes.toString();
3394
3395 // Check results
3396 if (!result.equals(expectedResult))
3397 failCount++;
3398 }
3399
3400 report("Substitution Basher");
3401 }
3402
3403 /*
3404 * 5 groups of characters are created to make a substitution string.
3405 * A base string will be created including random lead chars, the
3406 * substitution string, and random trailing chars.
3407 * A pattern containing the 5 groups is searched for and replaced with:
3408 * random group + random string + random group.
3409 * The results are checked for correctness.
3410 */
3411 private static void substitutionBasher2() {
3412 for (int runs = 0; runs<1000; runs++) {
3413 // Create a base string to work in
3414 int leadingChars = generator.nextInt(10);
3415 StringBuilder baseBuffer = new StringBuilder(100);
3416 String leadingString = getRandomAlphaString(leadingChars);
3417 baseBuffer.append(leadingString);
3418
3419 // Create 5 groups of random number of random chars
3420 // Create the string to substitute
3421 // Create the pattern string to search for
3422 StringBuilder bufferToSub = new StringBuilder(25);
3423 StringBuilder bufferToPat = new StringBuilder(50);
3424 String[] groups = new String[5];
3425 for(int i=0; i<5; i++) {
3426 int aGroupSize = generator.nextInt(5)+1;
3427 groups[i] = getRandomAlphaString(aGroupSize);
3428 bufferToSub.append(groups[i]);
3429 bufferToPat.append('(');
3430 bufferToPat.append(groups[i]);
3431 bufferToPat.append(')');
3432 }
3433 String stringToSub = bufferToSub.toString();
3434 String pattern = bufferToPat.toString();
3435
3436 // Place sub string into working string at random index
3437 baseBuffer.append(stringToSub);
3438
3439 // Append random chars to end
3440 int trailingChars = generator.nextInt(10);
3441 String trailingString = getRandomAlphaString(trailingChars);
3442 baseBuffer.append(trailingString);
3443 String baseString = baseBuffer.toString();
3444
3445 // Create test pattern and matcher
3446 Pattern p = Pattern.compile(pattern);
3447 Matcher m = p.matcher(baseString);
3448
3449 // Reject candidate if pattern happens to start early
3450 m.find();
3451 if (m.start() < leadingChars)
3452 continue;
3453
3454 // Reject candidate if more than one match
3455 if (m.find())
3456 continue;
3457
3458 // Construct a replacement string with :
3459 // random group + random string + random group
3460 StringBuilder bufferToRep = new StringBuilder();
3461 int groupIndex1 = generator.nextInt(5);
3462 bufferToRep.append("$" + (groupIndex1 + 1));
3463 String randomMidString = getRandomAlphaString(5);
3464 bufferToRep.append(randomMidString);
3465 int groupIndex2 = generator.nextInt(5);
3466 bufferToRep.append("$" + (groupIndex2 + 1));
3467 String replacement = bufferToRep.toString();
3468
3469 // Do the replacement
3470 String result = m.replaceAll(replacement);
3471
3472 // Construct expected result
3473 StringBuilder bufferToRes = new StringBuilder();
3474 bufferToRes.append(leadingString);
3475 bufferToRes.append(groups[groupIndex1]);
3476 bufferToRes.append(randomMidString);
3477 bufferToRes.append(groups[groupIndex2]);
3478 bufferToRes.append(trailingString);
3479 String expectedResult = bufferToRes.toString();
3480
3481 // Check results
3482 if (!result.equals(expectedResult)) {
3483 failCount++;
3484 }
3485 }
3486
3487 report("Substitution Basher 2");
3488 }
3489
3490 /**
3491 * Checks the handling of some escape sequences that the Pattern
3492 * class should process instead of the java compiler. These are
3493 * not in the file because the escapes should be be processed
3494 * by the Pattern class when the regex is compiled.
3495 */
3496 private static void escapes() throws Exception {
3497 Pattern p = Pattern.compile("\\043");
3498 Matcher m = p.matcher("#");
3499 if (!m.find())
3500 failCount++;
3501
3502 p = Pattern.compile("\\x23");
3503 m = p.matcher("#");
3504 if (!m.find())
3505 failCount++;
3506
3507 p = Pattern.compile("\\u0023");
3508 m = p.matcher("#");
3509 if (!m.find())
3510 failCount++;
3511
3512 report("Escape sequences");
3513 }
3514
3515 /**
3516 * Checks the handling of blank input situations. These
3517 * tests are incompatible with my test file format.
3518 */
3519 private static void blankInput() throws Exception {
3520 Pattern p = Pattern.compile("abc", Pattern.CASE_INSENSITIVE);
3521 Matcher m = p.matcher("");
3522 if (m.find())
3523 failCount++;
3524
3525 p = Pattern.compile("a*", Pattern.CASE_INSENSITIVE);
3526 m = p.matcher("");
3527 if (!m.find())
3528 failCount++;
3529
3530 p = Pattern.compile("abc");
3531 m = p.matcher("");
3532 if (m.find())
3533 failCount++;
3534
3535 p = Pattern.compile("a*");
3536 m = p.matcher("");
3537 if (!m.find())
3538 failCount++;
3539
3540 report("Blank input");
3541 }
3542
3543 /**
3544 * Tests the Boyer-Moore pattern matching of a character sequence
3545 * on randomly generated patterns.
3546 */
3547 private static void bm() throws Exception {
3548 doBnM('a');
3549 report("Boyer Moore (ASCII)");
3550
3551 doBnM(Character.MIN_SUPPLEMENTARY_CODE_POINT - 10);
3552 report("Boyer Moore (Supplementary)");
3553 }
3554
3555 private static void doBnM(int baseCharacter) throws Exception {
3556 int achar=0;
3557
3558 for (int i=0; i<100; i++) {
3559 // Create a short pattern to search for
3560 int patternLength = generator.nextInt(7) + 4;
3561 StringBuffer patternBuffer = new StringBuffer(patternLength);
3562 String pattern;
3563 retry: for (;;) {
3564 for (int x=0; x<patternLength; x++) {
3565 int ch = baseCharacter + generator.nextInt(26);
3566 if (Character.isSupplementaryCodePoint(ch)) {
3567 patternBuffer.append(Character.toChars(ch));
3568 } else {
3569 patternBuffer.append((char)ch);
3570 }
3571 }
3572 pattern = patternBuffer.toString();
3573
3574 // Avoid patterns that start and end with the same substring
3575 // See JDK-6854417
3576 for (int x=1; x < pattern.length(); x++) {
3577 if (pattern.startsWith(pattern.substring(x)))
3578 continue retry;
3579 }
3580 break;
3581 }
3582 Pattern p = Pattern.compile(pattern);
3583
3584 // Create a buffer with random ASCII chars that does
3585 // not match the sample
3586 String toSearch = null;
3587 StringBuffer s = null;
3588 Matcher m = p.matcher("");
3589 do {
3590 s = new StringBuffer(100);
3591 for (int x=0; x<100; x++) {
3592 int ch = baseCharacter + generator.nextInt(26);
3593 if (Character.isSupplementaryCodePoint(ch)) {
3594 s.append(Character.toChars(ch));
3595 } else {
3596 s.append((char)ch);
3597 }
3598 }
3599 toSearch = s.toString();
3600 m.reset(toSearch);
3601 } while (m.find());
3602
3603 // Insert the pattern at a random spot
3604 int insertIndex = generator.nextInt(99);
3605 if (Character.isLowSurrogate(s.charAt(insertIndex)))
3606 insertIndex++;
3607 s = s.insert(insertIndex, pattern);
3608 toSearch = s.toString();
3609
3610 // Make sure that the pattern is found
3611 m.reset(toSearch);
3612 if (!m.find())
3613 failCount++;
3614
3615 // Make sure that the match text is the pattern
3616 if (!m.group().equals(pattern))
3617 failCount++;
3618
3619 // Make sure match occured at insertion point
3620 if (m.start() != insertIndex)
3621 failCount++;
3622 }
3623 }
3624
3625 /**
3626 * Tests the matching of slices on randomly generated patterns.
3627 * The Boyer-Moore optimization is not done on these patterns
3628 * because it uses unicode case folding.
3629 */
3630 private static void slice() throws Exception {
3631 doSlice(Character.MAX_VALUE);
3632 report("Slice");
3633
3634 doSlice(Character.MAX_CODE_POINT);
3635 report("Slice (Supplementary)");
3636 }
3637
3638 private static void doSlice(int maxCharacter) throws Exception {
3639 Random generator = new Random();
3640 int achar=0;
3641
3642 for (int i=0; i<100; i++) {
3643 // Create a short pattern to search for
3644 int patternLength = generator.nextInt(7) + 4;
3645 StringBuffer patternBuffer = new StringBuffer(patternLength);
3646 for (int x=0; x<patternLength; x++) {
3647 int randomChar = 0;
3648 while (!Character.isLetterOrDigit(randomChar))
3649 randomChar = generator.nextInt(maxCharacter);
3650 if (Character.isSupplementaryCodePoint(randomChar)) {
3651 patternBuffer.append(Character.toChars(randomChar));
3652 } else {
3653 patternBuffer.append((char) randomChar);
3654 }
3655 }
3656 String pattern = patternBuffer.toString();
3657 Pattern p = Pattern.compile(pattern, Pattern.UNICODE_CASE);
3658
3659 // Create a buffer with random chars that does not match the sample
3660 String toSearch = null;
3661 StringBuffer s = null;
3662 Matcher m = p.matcher("");
3663 do {
3664 s = new StringBuffer(100);
3665 for (int x=0; x<100; x++) {
3666 int randomChar = 0;
3667 while (!Character.isLetterOrDigit(randomChar))
3668 randomChar = generator.nextInt(maxCharacter);
3669 if (Character.isSupplementaryCodePoint(randomChar)) {
3670 s.append(Character.toChars(randomChar));
3671 } else {
3672 s.append((char) randomChar);
3673 }
3674 }
3675 toSearch = s.toString();
3676 m.reset(toSearch);
3677 } while (m.find());
3678
3679 // Insert the pattern at a random spot
3680 int insertIndex = generator.nextInt(99);
3681 if (Character.isLowSurrogate(s.charAt(insertIndex)))
3682 insertIndex++;
3683 s = s.insert(insertIndex, pattern);
3684 toSearch = s.toString();
3685
3686 // Make sure that the pattern is found
3687 m.reset(toSearch);
3688 if (!m.find())
3689 failCount++;
3690
3691 // Make sure that the match text is the pattern
3692 if (!m.group().equals(pattern))
3693 failCount++;
3694
3695 // Make sure match occured at insertion point
3696 if (m.start() != insertIndex)
3697 failCount++;
3698 }
3699 }
3700
3701 private static void explainFailure(String pattern, String data,
3702 String expected, String actual) {
3703 System.err.println("----------------------------------------");
3704 System.err.println("Pattern = "+pattern);
3705 System.err.println("Data = "+data);
3706 System.err.println("Expected = " + expected);
3707 System.err.println("Actual = " + actual);
3708 }
3709
3710 private static void explainFailure(String pattern, String data,
3711 Throwable t) {
3712 System.err.println("----------------------------------------");
3713 System.err.println("Pattern = "+pattern);
3714 System.err.println("Data = "+data);
3715 t.printStackTrace(System.err);
3716 }
3717
3718 // Testing examples from a file
3719
3720 /**
3721 * Goes through the file "TestCases.txt" and creates many patterns
3722 * described in the file, matching the patterns against input lines in
3723 * the file, and comparing the results against the correct results
3724 * also found in the file. The file format is described in comments
3725 * at the head of the file.
3726 */
3727 private static void processFile(String fileName) throws Exception {
3728 File testCases = new File(System.getProperty("test.src", "."),
3729 fileName);
3730 FileInputStream in = new FileInputStream(testCases);
3731 BufferedReader r = new BufferedReader(new InputStreamReader(in));
3732
3733 // Process next test case.
3734 String aLine;
3735 while((aLine = r.readLine()) != null) {
3736 // Read a line for pattern
3737 String patternString = grabLine(r);
3738 Pattern p = null;
3739 try {
3740 p = compileTestPattern(patternString);
3741 } catch (PatternSyntaxException e) {
3742 String dataString = grabLine(r);
3743 String expectedResult = grabLine(r);
3744 if (expectedResult.startsWith("error"))
3745 continue;
3746 explainFailure(patternString, dataString, e);
3747 failCount++;
3748 continue;
3749 }
3750
3751 // Read a line for input string
3752 String dataString = grabLine(r);
3753 Matcher m = p.matcher(dataString);
3754 StringBuffer result = new StringBuffer();
3755
3756 // Check for IllegalStateExceptions before a match
3757 failCount += preMatchInvariants(m);
3758
3759 boolean found = m.find();
3760
3761 if (found)
3762 failCount += postTrueMatchInvariants(m);
3763 else
3764 failCount += postFalseMatchInvariants(m);
3765
3766 if (found) {
3767 result.append("true ");
3768 result.append(m.group(0) + " ");
3769 } else {
3770 result.append("false ");
3771 }
3772
3773 result.append(m.groupCount());
3774
3775 if (found) {
3776 for (int i=1; i<m.groupCount()+1; i++)
3777 if (m.group(i) != null)
3778 result.append(" " +m.group(i));
3779 }
3780
3781 // Read a line for the expected result
3782 String expectedResult = grabLine(r);
3783
3784 if (!result.toString().equals(expectedResult)) {
3785 explainFailure(patternString, dataString, expectedResult, result.toString());
3786 failCount++;
3787 }
3788 }
3789
3790 report(fileName);
3791 }
3792
3793 private static int preMatchInvariants(Matcher m) {
3794 int failCount = 0;
3795 try {
3796 m.start();
3797 failCount++;
3798 } catch (IllegalStateException ise) {}
3799 try {
3800 m.end();
3801 failCount++;
3802 } catch (IllegalStateException ise) {}
3803 try {
3804 m.group();
3805 failCount++;
3806 } catch (IllegalStateException ise) {}
3807 return failCount;
3808 }
3809
3810 private static int postFalseMatchInvariants(Matcher m) {
3811 int failCount = 0;
3812 try {
3813 m.group();
3814 failCount++;
3815 } catch (IllegalStateException ise) {}
3816 try {
3817 m.start();
3818 failCount++;
3819 } catch (IllegalStateException ise) {}
3820 try {
3821 m.end();
3822 failCount++;
3823 } catch (IllegalStateException ise) {}
3824 return failCount;
3825 }
3826
3827 private static int postTrueMatchInvariants(Matcher m) {
3828 int failCount = 0;
3829 //assert(m.start() = m.start(0);
3830 if (m.start() != m.start(0))
3831 failCount++;
3832 //assert(m.end() = m.end(0);
3833 if (m.start() != m.start(0))
3834 failCount++;
3835 //assert(m.group() = m.group(0);
3836 if (!m.group().equals(m.group(0)))
3837 failCount++;
3838 try {
3839 m.group(50);
3840 failCount++;
3841 } catch (IndexOutOfBoundsException ise) {}
3842
3843 return failCount;
3844 }
3845
3846 private static Pattern compileTestPattern(String patternString) {
3847 if (!patternString.startsWith("'")) {
3848 return Pattern.compile(patternString);
3849 }
3850
3851 int break1 = patternString.lastIndexOf("'");
3852 String flagString = patternString.substring(
3853 break1+1, patternString.length());
3854 patternString = patternString.substring(1, break1);
3855
3856 if (flagString.equals("i"))
3857 return Pattern.compile(patternString, Pattern.CASE_INSENSITIVE);
3858
3859 if (flagString.equals("m"))
3860 return Pattern.compile(patternString, Pattern.MULTILINE);
3861
3862 return Pattern.compile(patternString);
3863 }
3864
3865 /**
3866 * Reads a line from the input file. Keeps reading lines until a non
3867 * empty non comment line is read. If the line contains a \n then
3868 * these two characters are replaced by a newline char. If a \\uxxxx
3869 * sequence is read then the sequence is replaced by the unicode char.
3870 */
3871 private static String grabLine(BufferedReader r) throws Exception {
3872 int index = 0;
3873 String line = r.readLine();
3874 while (line.startsWith("//") || line.length() < 1)
3875 line = r.readLine();
3876 while ((index = line.indexOf("\\n")) != -1) {
3877 StringBuffer temp = new StringBuffer(line);
3878 temp.replace(index, index+2, "\n");
3879 line = temp.toString();
3880 }
3881 while ((index = line.indexOf("\\u")) != -1) {
3882 StringBuffer temp = new StringBuffer(line);
3883 String value = temp.substring(index+2, index+6);
3884 char aChar = (char)Integer.parseInt(value, 16);
3885 String unicodeChar = "" + aChar;
3886 temp.replace(index, index+6, unicodeChar);
3887 line = temp.toString();
3888 }
3889
3890 return line;
3891 }
3892
3893 private static void check(Pattern p, String s, String g, String expected) {
3894 Matcher m = p.matcher(s);
3895 m.find();
3896 if (!m.group(g).equals(expected) ||
3897 s.charAt(m.start(g)) != expected.charAt(0) ||
3898 s.charAt(m.end(g) - 1) != expected.charAt(expected.length() - 1))
3899 failCount++;
3900 }
3901
3902 private static void checkReplaceFirst(String p, String s, String r, String expected)
3903 {
3904 if (!expected.equals(Pattern.compile(p)
3905 .matcher(s)
3906 .replaceFirst(r)))
3907 failCount++;
3908 }
3909
3910 private static void checkReplaceAll(String p, String s, String r, String expected)
3911 {
3912 if (!expected.equals(Pattern.compile(p)
3913 .matcher(s)
3914 .replaceAll(r)))
3915 failCount++;
3916 }
3917
3918 private static void checkExpectedFail(String p) {
3919 try {
3920 Pattern.compile(p);
3921 } catch (PatternSyntaxException pse) {
3922 //pse.printStackTrace();
3923 return;
3924 }
3925 failCount++;
3926 }
3927
3928 private static void checkExpectedIAE(Matcher m, String g) {
3929 m.find();
3930 try {
3931 m.group(g);
3932 } catch (IllegalArgumentException x) {
3933 //iae.printStackTrace();
3934 try {
3935 m.start(g);
3936 } catch (IllegalArgumentException xx) {
3937 try {
3938 m.start(g);
3939 } catch (IllegalArgumentException xxx) {
3940 return;
3941 }
3942 }
3943 }
3944 failCount++;
3945 }
3946
3947 private static void checkExpectedNPE(Matcher m) {
3948 m.find();
3949 try {
3950 m.group(null);
3951 } catch (NullPointerException x) {
3952 try {
3953 m.start(null);
3954 } catch (NullPointerException xx) {
3955 try {
3956 m.end(null);
3957 } catch (NullPointerException xxx) {
3958 return;
3959 }
3960 }
3961 }
3962 failCount++;
3963 }
3964
3965 private static void namedGroupCaptureTest() throws Exception {
3966 check(Pattern.compile("x+(?<gname>y+)z+"),
3967 "xxxyyyzzz",
3968 "gname",
3969 "yyy");
3970
3971 check(Pattern.compile("x+(?<gname8>y+)z+"),
3972 "xxxyyyzzz",
3973 "gname8",
3974 "yyy");
3975
3976 //backref
3977 Pattern pattern = Pattern.compile("(a*)bc\\1");
3978 check(pattern, "zzzaabcazzz", true); // found "abca"
3979
3980 check(Pattern.compile("(?<gname>a*)bc\\k<gname>"),
3981 "zzzaabcaazzz", true);
3982
3983 check(Pattern.compile("(?<gname>abc)(def)\\k<gname>"),
3984 "abcdefabc", true);
3985
3986 check(Pattern.compile("(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(?<gname>k)\\k<gname>"),
3987 "abcdefghijkk", true);
3988
3989 // Supplementary character tests
3990 check(Pattern.compile("(?<gname>" + toSupplementaries("a*)bc") + "\\k<gname>"),
3991 toSupplementaries("zzzaabcazzz"), true);
3992
3993 check(Pattern.compile("(?<gname>" + toSupplementaries("a*)bc") + "\\k<gname>"),
3994 toSupplementaries("zzzaabcaazzz"), true);
3995
3996 check(Pattern.compile("(?<gname>" + toSupplementaries("abc)(def)") + "\\k<gname>"),
3997 toSupplementaries("abcdefabc"), true);
3998
3999 check(Pattern.compile(toSupplementaries("(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)") +
4000 "(?<gname>" +
4001 toSupplementaries("k)") + "\\k<gname>"),
4002 toSupplementaries("abcdefghijkk"), true);
4003
4004 check(Pattern.compile("x+(?<gname>y+)z+\\k<gname>"),
4005 "xxxyyyzzzyyy",
4006 "gname",
4007 "yyy");
4008
4009 //replaceFirst/All
4010 checkReplaceFirst("(?<gn>ab)(c*)",
4011 "abccczzzabcczzzabccc",
4012 "${gn}",
4013 "abzzzabcczzzabccc");
4014
4015 checkReplaceAll("(?<gn>ab)(c*)",
4016 "abccczzzabcczzzabccc",
4017 "${gn}",
4018 "abzzzabzzzab");
4019
4020
4021 checkReplaceFirst("(?<gn>ab)(c*)",
4022 "zzzabccczzzabcczzzabccczzz",
4023 "${gn}",
4024 "zzzabzzzabcczzzabccczzz");
4025
4026 checkReplaceAll("(?<gn>ab)(c*)",
4027 "zzzabccczzzabcczzzabccczzz",
4028 "${gn}",
4029 "zzzabzzzabzzzabzzz");
4030
4031 checkReplaceFirst("(?<gn1>ab)(?<gn2>c*)",
4032 "zzzabccczzzabcczzzabccczzz",
4033 "${gn2}",
4034 "zzzccczzzabcczzzabccczzz");
4035
4036 checkReplaceAll("(?<gn1>ab)(?<gn2>c*)",
4037 "zzzabccczzzabcczzzabccczzz",
4038 "${gn2}",
4039 "zzzccczzzcczzzccczzz");
4040
4041 //toSupplementaries("(ab)(c*)"));
4042 checkReplaceFirst("(?<gn1>" + toSupplementaries("ab") +
4043 ")(?<gn2>" + toSupplementaries("c") + "*)",
4044 toSupplementaries("abccczzzabcczzzabccc"),
4045 "${gn1}",
4046 toSupplementaries("abzzzabcczzzabccc"));
4047
4048
4049 checkReplaceAll("(?<gn1>" + toSupplementaries("ab") +
4050 ")(?<gn2>" + toSupplementaries("c") + "*)",
4051 toSupplementaries("abccczzzabcczzzabccc"),
4052 "${gn1}",
4053 toSupplementaries("abzzzabzzzab"));
4054
4055 checkReplaceFirst("(?<gn1>" + toSupplementaries("ab") +
4056 ")(?<gn2>" + toSupplementaries("c") + "*)",
4057 toSupplementaries("abccczzzabcczzzabccc"),
4058 "${gn2}",
4059 toSupplementaries("ccczzzabcczzzabccc"));
4060
4061
4062 checkReplaceAll("(?<gn1>" + toSupplementaries("ab") +
4063 ")(?<gn2>" + toSupplementaries("c") + "*)",
4064 toSupplementaries("abccczzzabcczzzabccc"),
4065 "${gn2}",
4066 toSupplementaries("ccczzzcczzzccc"));
4067
4068 checkReplaceFirst("(?<dog>Dog)AndCat",
4069 "zzzDogAndCatzzzDogAndCatzzz",
4070 "${dog}",
4071 "zzzDogzzzDogAndCatzzz");
4072
4073
4074 checkReplaceAll("(?<dog>Dog)AndCat",
4075 "zzzDogAndCatzzzDogAndCatzzz",
4076 "${dog}",
4077 "zzzDogzzzDogzzz");
4078
4079 // backref in Matcher & String
4080 if (!"abcdefghij".replaceFirst("cd(?<gn>ef)gh", "${gn}").equals("abefij") ||
4081 !"abbbcbdbefgh".replaceAll("(?<gn>[a-e])b", "${gn}").equals("abcdefgh"))
4082 failCount++;
4083
4084 // negative
4085 checkExpectedFail("(?<groupnamehasnoascii.in>abc)(def)");
4086 checkExpectedFail("(?<groupnamehasnoascii_in>abc)(def)");
4087 checkExpectedFail("(?<6groupnamestartswithdigit>abc)(def)");
4088 checkExpectedFail("(?<gname>abc)(def)\\k<gnameX>");
4089 checkExpectedFail("(?<gname>abc)(?<gname>def)\\k<gnameX>");
4090 checkExpectedIAE(Pattern.compile("(?<gname>abc)(def)").matcher("abcdef"),
4091 "gnameX");
4092 checkExpectedNPE(Pattern.compile("(?<gname>abc)(def)").matcher("abcdef"));
4093 report("NamedGroupCapture");
4094 }
4095
4096 // This is for bug 6919132
4097 private static void nonBmpClassComplementTest() throws Exception {
4098 Pattern p = Pattern.compile("\\P{Lu}");
4099 Matcher m = p.matcher(new String(new int[] {0x1d400}, 0, 1));
4100
4101 if (m.find() && m.start() == 1)
4102 failCount++;
4103
4104 // from a unicode category
4105 p = Pattern.compile("\\P{Lu}");
4106 m = p.matcher(new String(new int[] {0x1d400}, 0, 1));
4107 if (m.find())
4108 failCount++;
4109 if (!m.hitEnd())
4110 failCount++;
4111
4112 // block
4113 p = Pattern.compile("\\P{InMathematicalAlphanumericSymbols}");
4114 m = p.matcher(new String(new int[] {0x1d400}, 0, 1));
4115 if (m.find() && m.start() == 1)
4116 failCount++;
4117
4118 p = Pattern.compile("\\P{sc=GRANTHA}");
4119 m = p.matcher(new String(new int[] {0x11350}, 0, 1));
4120 if (m.find() && m.start() == 1)
4121 failCount++;
4122
4123 report("NonBmpClassComplement");
4124 }
4125
4126 private static void unicodePropertiesTest() throws Exception {
4127 // different forms
4128 if (!Pattern.compile("\\p{IsLu}").matcher("A").matches() ||
4129 !Pattern.compile("\\p{Lu}").matcher("A").matches() ||
4130 !Pattern.compile("\\p{gc=Lu}").matcher("A").matches() ||
4131 !Pattern.compile("\\p{general_category=Lu}").matcher("A").matches() ||
4132 !Pattern.compile("\\p{IsLatin}").matcher("B").matches() ||
4133 !Pattern.compile("\\p{sc=Latin}").matcher("B").matches() ||
4134 !Pattern.compile("\\p{script=Latin}").matcher("B").matches() ||
4135 !Pattern.compile("\\p{InBasicLatin}").matcher("c").matches() ||
4136 !Pattern.compile("\\p{blk=BasicLatin}").matcher("c").matches() ||
4137 !Pattern.compile("\\p{block=BasicLatin}").matcher("c").matches())
4138 failCount++;
4139
4140 Matcher common = Pattern.compile("\\p{script=Common}").matcher("");
4141 Matcher unknown = Pattern.compile("\\p{IsUnknown}").matcher("");
4142 Matcher lastSM = common;
4143 Character.UnicodeScript lastScript = Character.UnicodeScript.of(0);
4144
4145 Matcher latin = Pattern.compile("\\p{block=basic_latin}").matcher("");
4146 Matcher greek = Pattern.compile("\\p{InGreek}").matcher("");
4147 Matcher lastBM = latin;
4148 Character.UnicodeBlock lastBlock = Character.UnicodeBlock.of(0);
4149
4150 for (int cp = 1; cp < Character.MAX_CODE_POINT; cp++) {
4151 if (cp >= 0x30000 && (cp & 0x70) == 0){
4152 continue; // only pick couple code points, they are the same
4153 }
4154
4155 // Unicode Script
4156 Character.UnicodeScript script = Character.UnicodeScript.of(cp);
4157 Matcher m;
4158 String str = new String(Character.toChars(cp));
4159 if (script == lastScript) {
4160 m = lastSM;
4161 m.reset(str);
4162 } else {
4163 m = Pattern.compile("\\p{Is" + script.name() + "}").matcher(str);
4164 }
4165 if (!m.matches()) {
4166 failCount++;
4167 }
4168 Matcher other = (script == Character.UnicodeScript.COMMON)? unknown : common;
4169 other.reset(str);
4170 if (other.matches()) {
4171 failCount++;
4172 }
4173 lastSM = m;
4174 lastScript = script;
4175
4176 // Unicode Block
4177 Character.UnicodeBlock block = Character.UnicodeBlock.of(cp);
4178 if (block == null) {
4179 //System.out.printf("Not a Block: cp=%x%n", cp);
4180 continue;
4181 }
4182 if (block == lastBlock) {
4183 m = lastBM;
4184 m.reset(str);
4185 } else {
4186 m = Pattern.compile("\\p{block=" + block.toString() + "}").matcher(str);
4187 }
4188 if (!m.matches()) {
4189 failCount++;
4190 }
4191 other = (block == Character.UnicodeBlock.BASIC_LATIN)? greek : latin;
4192 other.reset(str);
4193 if (other.matches()) {
4194 failCount++;
4195 }
4196 lastBM = m;
4197 lastBlock = block;
4198 }
4199 report("unicodeProperties");
4200 }
4201
4202 private static void unicodeHexNotationTest() throws Exception {
4203
4204 // negative
4205 checkExpectedFail("\\x{-23}");
4206 checkExpectedFail("\\x{110000}");
4207 checkExpectedFail("\\x{}");
4208 checkExpectedFail("\\x{AB[ef]");
4209
4210 // codepoint
4211 check("^\\x{1033c}$", "\uD800\uDF3C", true);
4212 check("^\\xF0\\x90\\x8C\\xBC$", "\uD800\uDF3C", false);
4213 check("^\\x{D800}\\x{DF3c}+$", "\uD800\uDF3C", false);
4214 check("^\\xF0\\x90\\x8C\\xBC$", "\uD800\uDF3C", false);
4215
4216 // in class
4217 check("^[\\x{D800}\\x{DF3c}]+$", "\uD800\uDF3C", false);
4218 check("^[\\xF0\\x90\\x8C\\xBC]+$", "\uD800\uDF3C", false);
4219 check("^[\\x{D800}\\x{DF3C}]+$", "\uD800\uDF3C", false);
4220 check("^[\\x{DF3C}\\x{D800}]+$", "\uD800\uDF3C", false);
4221 check("^[\\x{D800}\\x{DF3C}]+$", "\uDF3C\uD800", true);
4222 check("^[\\x{DF3C}\\x{D800}]+$", "\uDF3C\uD800", true);
4223
4224 for (int cp = 0; cp <= 0x10FFFF; cp++) {
4225 String s = "A" + new String(Character.toChars(cp)) + "B";
4226 String hexUTF16 = (cp <= 0xFFFF)? String.format("\\u%04x", cp)
4227 : String.format("\\u%04x\\u%04x",
4228 (int) Character.toChars(cp)[0],
4229 (int) Character.toChars(cp)[1]);
4230 String hexCodePoint = "\\x{" + Integer.toHexString(cp) + "}";
4231 if (!Pattern.matches("A" + hexUTF16 + "B", s))
4232 failCount++;
4233 if (!Pattern.matches("A[" + hexUTF16 + "]B", s))
4234 failCount++;
4235 if (!Pattern.matches("A" + hexCodePoint + "B", s))
4236 failCount++;
4237 if (!Pattern.matches("A[" + hexCodePoint + "]B", s))
4238 failCount++;
4239 }
4240 report("unicodeHexNotation");
4241 }
4242
4243 private static void unicodeClassesTest() throws Exception {
4244
4245 Matcher lower = Pattern.compile("\\p{Lower}").matcher("");
4246 Matcher upper = Pattern.compile("\\p{Upper}").matcher("");
4247 Matcher ASCII = Pattern.compile("\\p{ASCII}").matcher("");
4248 Matcher alpha = Pattern.compile("\\p{Alpha}").matcher("");
4249 Matcher digit = Pattern.compile("\\p{Digit}").matcher("");
4250 Matcher alnum = Pattern.compile("\\p{Alnum}").matcher("");
4251 Matcher punct = Pattern.compile("\\p{Punct}").matcher("");
4252 Matcher graph = Pattern.compile("\\p{Graph}").matcher("");
4253 Matcher print = Pattern.compile("\\p{Print}").matcher("");
4254 Matcher blank = Pattern.compile("\\p{Blank}").matcher("");
4255 Matcher cntrl = Pattern.compile("\\p{Cntrl}").matcher("");
4256 Matcher xdigit = Pattern.compile("\\p{XDigit}").matcher("");
4257 Matcher space = Pattern.compile("\\p{Space}").matcher("");
4258 Matcher bound = Pattern.compile("\\b").matcher("");
4259 Matcher word = Pattern.compile("\\w++").matcher("");
4260 // UNICODE_CHARACTER_CLASS
4261 Matcher lowerU = Pattern.compile("\\p{Lower}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4262 Matcher upperU = Pattern.compile("\\p{Upper}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4263 Matcher ASCIIU = Pattern.compile("\\p{ASCII}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4264 Matcher alphaU = Pattern.compile("\\p{Alpha}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4265 Matcher digitU = Pattern.compile("\\p{Digit}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4266 Matcher alnumU = Pattern.compile("\\p{Alnum}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4267 Matcher punctU = Pattern.compile("\\p{Punct}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4268 Matcher graphU = Pattern.compile("\\p{Graph}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4269 Matcher printU = Pattern.compile("\\p{Print}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4270 Matcher blankU = Pattern.compile("\\p{Blank}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4271 Matcher cntrlU = Pattern.compile("\\p{Cntrl}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4272 Matcher xdigitU = Pattern.compile("\\p{XDigit}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4273 Matcher spaceU = Pattern.compile("\\p{Space}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4274 Matcher boundU = Pattern.compile("\\b", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4275 Matcher wordU = Pattern.compile("\\w", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4276 // embedded flag (?U)
4277 Matcher lowerEU = Pattern.compile("(?U)\\p{Lower}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4278 Matcher graphEU = Pattern.compile("(?U)\\p{Graph}", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4279 Matcher wordEU = Pattern.compile("(?U)\\w", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4280
4281 Matcher bwb = Pattern.compile("\\b\\w\\b").matcher("");
4282 Matcher bwbU = Pattern.compile("\\b\\w++\\b", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4283 Matcher bwbEU = Pattern.compile("(?U)\\b\\w++\\b", Pattern.UNICODE_CHARACTER_CLASS).matcher("");
4284 // properties
4285 Matcher lowerP = Pattern.compile("\\p{IsLowerCase}").matcher("");
4286 Matcher upperP = Pattern.compile("\\p{IsUpperCase}").matcher("");
4287 Matcher titleP = Pattern.compile("\\p{IsTitleCase}").matcher("");
4288 Matcher letterP = Pattern.compile("\\p{IsLetter}").matcher("");
4289 Matcher alphaP = Pattern.compile("\\p{IsAlphabetic}").matcher("");
4290 Matcher ideogP = Pattern.compile("\\p{IsIdeographic}").matcher("");
4291 Matcher cntrlP = Pattern.compile("\\p{IsControl}").matcher("");
4292 Matcher spaceP = Pattern.compile("\\p{IsWhiteSpace}").matcher("");
4293 Matcher definedP = Pattern.compile("\\p{IsAssigned}").matcher("");
4294 Matcher nonCCPP = Pattern.compile("\\p{IsNoncharacterCodePoint}").matcher("");
4295 Matcher joinCrtl = Pattern.compile("\\p{IsJoinControl}").matcher("");
4296
4297 // javaMethod
4298 Matcher lowerJ = Pattern.compile("\\p{javaLowerCase}").matcher("");
4299 Matcher upperJ = Pattern.compile("\\p{javaUpperCase}").matcher("");
4300 Matcher alphaJ = Pattern.compile("\\p{javaAlphabetic}").matcher("");
4301 Matcher ideogJ = Pattern.compile("\\p{javaIdeographic}").matcher("");
4302
4303 for (int cp = 1; cp < 0x30000; cp++) {
4304 String str = new String(Character.toChars(cp));
4305 int type = Character.getType(cp);
4306 if (// lower
4307 POSIX_ASCII.isLower(cp) != lower.reset(str).matches() ||
4308 Character.isLowerCase(cp) != lowerU.reset(str).matches() ||
4309 Character.isLowerCase(cp) != lowerP.reset(str).matches() ||
4310 Character.isLowerCase(cp) != lowerEU.reset(str).matches()||
4311 Character.isLowerCase(cp) != lowerJ.reset(str).matches()||
4312 // upper
4313 POSIX_ASCII.isUpper(cp) != upper.reset(str).matches() ||
4314 POSIX_Unicode.isUpper(cp) != upperU.reset(str).matches() ||
4315 Character.isUpperCase(cp) != upperP.reset(str).matches() ||
4316 Character.isUpperCase(cp) != upperJ.reset(str).matches() ||
4317 // alpha
4318 POSIX_ASCII.isAlpha(cp) != alpha.reset(str).matches() ||
4319 POSIX_Unicode.isAlpha(cp) != alphaU.reset(str).matches() ||
4320 Character.isAlphabetic(cp)!= alphaP.reset(str).matches() ||
4321 Character.isAlphabetic(cp)!= alphaJ.reset(str).matches() ||
4322 // digit
4323 POSIX_ASCII.isDigit(cp) != digit.reset(str).matches() ||
4324 Character.isDigit(cp) != digitU.reset(str).matches() ||
4325 // alnum
4326 POSIX_ASCII.isAlnum(cp) != alnum.reset(str).matches() ||
4327 POSIX_Unicode.isAlnum(cp) != alnumU.reset(str).matches() ||
4328 // punct
4329 POSIX_ASCII.isPunct(cp) != punct.reset(str).matches() ||
4330 POSIX_Unicode.isPunct(cp) != punctU.reset(str).matches() ||
4331 // graph
4332 POSIX_ASCII.isGraph(cp) != graph.reset(str).matches() ||
4333 POSIX_Unicode.isGraph(cp) != graphU.reset(str).matches() ||
4334 POSIX_Unicode.isGraph(cp) != graphEU.reset(str).matches()||
4335 // blank
4336 POSIX_ASCII.isType(cp, POSIX_ASCII.BLANK)
4337 != blank.reset(str).matches() ||
4338 POSIX_Unicode.isBlank(cp) != blankU.reset(str).matches() ||
4339 // print
4340 POSIX_ASCII.isPrint(cp) != print.reset(str).matches() ||
4341 POSIX_Unicode.isPrint(cp) != printU.reset(str).matches() ||
4342 // cntrl
4343 POSIX_ASCII.isCntrl(cp) != cntrl.reset(str).matches() ||
4344 POSIX_Unicode.isCntrl(cp) != cntrlU.reset(str).matches() ||
4345 (Character.CONTROL == type) != cntrlP.reset(str).matches() ||
4346 // hexdigit
4347 POSIX_ASCII.isHexDigit(cp) != xdigit.reset(str).matches() ||
4348 POSIX_Unicode.isHexDigit(cp) != xdigitU.reset(str).matches() ||
4349 // space
4350 POSIX_ASCII.isSpace(cp) != space.reset(str).matches() ||
4351 POSIX_Unicode.isSpace(cp) != spaceU.reset(str).matches() ||
4352 POSIX_Unicode.isSpace(cp) != spaceP.reset(str).matches() ||
4353 // word
4354 POSIX_ASCII.isWord(cp) != word.reset(str).matches() ||
4355 POSIX_Unicode.isWord(cp) != wordU.reset(str).matches() ||
4356 POSIX_Unicode.isWord(cp) != wordEU.reset(str).matches()||
4357 // bwordb
4358 POSIX_ASCII.isWord(cp) != bwb.reset(str).matches() ||
4359 POSIX_Unicode.isWord(cp) != bwbU.reset(str).matches() ||
4360 // properties
4361 Character.isTitleCase(cp) != titleP.reset(str).matches() ||
4362 Character.isLetter(cp) != letterP.reset(str).matches()||
4363 Character.isIdeographic(cp) != ideogP.reset(str).matches() ||
4364 Character.isIdeographic(cp) != ideogJ.reset(str).matches() ||
4365 (Character.UNASSIGNED == type) == definedP.reset(str).matches() ||
4366 POSIX_Unicode.isNoncharacterCodePoint(cp) != nonCCPP.reset(str).matches() ||
4367 POSIX_Unicode.isJoinControl(cp) != joinCrtl.reset(str).matches())
4368 failCount++;
4369 }
4370
4371 // bounds/word align
4372 twoFindIndexes(" \u0180sherman\u0400 ", bound, 1, 10);
4373 if (!bwbU.reset("\u0180sherman\u0400").matches())
4374 failCount++;
4375 twoFindIndexes(" \u0180sh\u0345erman\u0400 ", bound, 1, 11);
4376 if (!bwbU.reset("\u0180sh\u0345erman\u0400").matches())
4377 failCount++;
4378 twoFindIndexes(" \u0724\u0739\u0724 ", bound, 1, 4);
4379 if (!bwbU.reset("\u0724\u0739\u0724").matches())
4380 failCount++;
4381 if (!bwbEU.reset("\u0724\u0739\u0724").matches())
4382 failCount++;
4383 report("unicodePredefinedClasses");
4384 }
4385
4386 private static void unicodeCharacterNameTest() throws Exception {
4387
4388 for (int cp = 0; cp < Character.MAX_CODE_POINT; cp++) {
4389 if (!Character.isValidCodePoint(cp) ||
4390 Character.getType(cp) == Character.UNASSIGNED)
4391 continue;
4392 String str = new String(Character.toChars(cp));
4393 // single
4394 String p = "\\N{" + Character.getName(cp) + "}";
4395 if (!Pattern.compile(p).matcher(str).matches()) {
4396 failCount++;
4397 }
4398 // class[c]
4399 p = "[\\N{" + Character.getName(cp) + "}]";
4400 if (!Pattern.compile(p).matcher(str).matches()) {
4401 failCount++;
4402 }
4403 }
4404
4405 // range
4406 for (int i = 0; i < 10; i++) {
4407 int start = generator.nextInt(20);
4408 int end = start + generator.nextInt(200);
4409 String p = "[\\N{" + Character.getName(start) + "}-\\N{" + Character.getName(end) + "}]";
4410 String str;
4411 for (int cp = start; cp < end; cp++) {
4412 str = new String(Character.toChars(cp));
4413 if (!Pattern.compile(p).matcher(str).matches()) {
4414 failCount++;
4415 }
4416 }
4417 str = new String(Character.toChars(end + 10));
4418 if (Pattern.compile(p).matcher(str).matches()) {
4419 failCount++;
4420 }
4421 }
4422
4423 // slice
4424 for (int i = 0; i < 10; i++) {
4425 int n = generator.nextInt(256);
4426 int[] buf = new int[n];
4427 StringBuffer sb = new StringBuffer(1024);
4428 for (int j = 0; j < n; j++) {
4429 int cp = generator.nextInt(1000);
4430 if (!Character.isValidCodePoint(cp) ||
4431 Character.getType(cp) == Character.UNASSIGNED)
4432 cp = 0x4e00; // just use 4e00
4433 sb.append("\\N{" + Character.getName(cp) + "}");
4434 buf[j] = cp;
4435 }
4436 String p = sb.toString();
4437 String str = new String(buf, 0, buf.length);
4438 if (!Pattern.compile(p).matcher(str).matches()) {
4439 failCount++;
4440 }
4441 }
4442 report("unicodeCharacterName");
4443 }
4444
4445 private static void horizontalAndVerticalWSTest() throws Exception {
4446 String hws = new String (new char[] {
4447 0x09, 0x20, 0xa0, 0x1680, 0x180e,
4448 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005,
4449 0x2006, 0x2007, 0x2008, 0x2009, 0x200a,
4450 0x202f, 0x205f, 0x3000 });
4451 String vws = new String (new char[] {
4452 0x0a, 0x0b, 0x0c, 0x0d, 0x85, 0x2028, 0x2029 });
4453 if (!Pattern.compile("\\h+").matcher(hws).matches() ||
4454 !Pattern.compile("[\\h]+").matcher(hws).matches())
4455 failCount++;
4456 if (Pattern.compile("\\H").matcher(hws).find() ||
4457 Pattern.compile("[\\H]").matcher(hws).find())
4458 failCount++;
4459 if (!Pattern.compile("\\v+").matcher(vws).matches() ||
4460 !Pattern.compile("[\\v]+").matcher(vws).matches())
4461 failCount++;
4462 if (Pattern.compile("\\V").matcher(vws).find() ||
4463 Pattern.compile("[\\V]").matcher(vws).find())
4464 failCount++;
4465 String prefix = "abcd";
4466 String suffix = "efgh";
4467 String ng = "A";
4468 for (int i = 0; i < hws.length(); i++) {
4469 String c = String.valueOf(hws.charAt(i));
4470 Matcher m = Pattern.compile("\\h").matcher(prefix + c + suffix);
4471 if (!m.find() || !c.equals(m.group()))
4472 failCount++;
4473 m = Pattern.compile("[\\h]").matcher(prefix + c + suffix);
4474 if (!m.find() || !c.equals(m.group()))
4475 failCount++;
4476
4477 m = Pattern.compile("\\H").matcher(hws.substring(0, i) + ng + hws.substring(i));
4478 if (!m.find() || !ng.equals(m.group()))
4479 failCount++;
4480 m = Pattern.compile("[\\H]").matcher(hws.substring(0, i) + ng + hws.substring(i));
4481 if (!m.find() || !ng.equals(m.group()))
4482 failCount++;
4483 }
4484 for (int i = 0; i < vws.length(); i++) {
4485 String c = String.valueOf(vws.charAt(i));
4486 Matcher m = Pattern.compile("\\v").matcher(prefix + c + suffix);
4487 if (!m.find() || !c.equals(m.group()))
4488 failCount++;
4489 m = Pattern.compile("[\\v]").matcher(prefix + c + suffix);
4490 if (!m.find() || !c.equals(m.group()))
4491 failCount++;
4492
4493 m = Pattern.compile("\\V").matcher(vws.substring(0, i) + ng + vws.substring(i));
4494 if (!m.find() || !ng.equals(m.group()))
4495 failCount++;
4496 m = Pattern.compile("[\\V]").matcher(vws.substring(0, i) + ng + vws.substring(i));
4497 if (!m.find() || !ng.equals(m.group()))
4498 failCount++;
4499 }
4500 // \v in range is interpreted as 0x0B. This is the undocumented behavior
4501 if (!Pattern.compile("[\\v-\\v]").matcher(String.valueOf((char)0x0B)).matches())
4502 failCount++;
4503 report("horizontalAndVerticalWSTest");
4504 }
4505
4506 private static void linebreakTest() throws Exception {
4507 String linebreaks = new String (new char[] {
4508 0x0A, 0x0B, 0x0C, 0x0D, 0x85, 0x2028, 0x2029 });
4509 String crnl = "\r\n";
4510 if (!Pattern.compile("\\R+").matcher(linebreaks).matches() ||
4511 !Pattern.compile("\\R").matcher(crnl).matches() ||
4512 Pattern.compile("\\R\\R").matcher(crnl).matches())
4513 failCount++;
4514 report("linebreakTest");
4515 }
4516
4517 // #7189363
4518 private static void branchTest() throws Exception {
4519 if (!Pattern.compile("(a)?bc|d").matcher("d").find() || // greedy
4520 !Pattern.compile("(a)+bc|d").matcher("d").find() ||
4521 !Pattern.compile("(a)*bc|d").matcher("d").find() ||
4522 !Pattern.compile("(a)??bc|d").matcher("d").find() || // reluctant
4523 !Pattern.compile("(a)+?bc|d").matcher("d").find() ||
4524 !Pattern.compile("(a)*?bc|d").matcher("d").find() ||
4525 !Pattern.compile("(a)?+bc|d").matcher("d").find() || // possessive
4526 !Pattern.compile("(a)++bc|d").matcher("d").find() ||
4527 !Pattern.compile("(a)*+bc|d").matcher("d").find() ||
4528 !Pattern.compile("(a)?bc|d").matcher("d").matches() || // greedy
4529 !Pattern.compile("(a)+bc|d").matcher("d").matches() ||
4530 !Pattern.compile("(a)*bc|d").matcher("d").matches() ||
4531 !Pattern.compile("(a)??bc|d").matcher("d").matches() || // reluctant
4532 !Pattern.compile("(a)+?bc|d").matcher("d").matches() ||
4533 !Pattern.compile("(a)*?bc|d").matcher("d").matches() ||
4534 !Pattern.compile("(a)?+bc|d").matcher("d").matches() || // possessive
4535 !Pattern.compile("(a)++bc|d").matcher("d").matches() ||
4536 !Pattern.compile("(a)*+bc|d").matcher("d").matches() ||
4537 !Pattern.compile("(a)?bc|de").matcher("de").find() || // others
4538 !Pattern.compile("(a)??bc|de").matcher("de").find() ||
4539 !Pattern.compile("(a)?bc|de").matcher("de").matches() ||
4540 !Pattern.compile("(a)??bc|de").matcher("de").matches())
4541 failCount++;
4542 report("branchTest");
4543 }
4544
4545 // This test is for 8007395
4546 private static void groupCurlyNotFoundSuppTest() throws Exception {
4547 String input = "test this as \ud83d\ude0d";
4548 for (String pStr : new String[] { "test(.)+(@[a-zA-Z.]+)",
4549 "test(.)*(@[a-zA-Z.]+)",
4550 "test([^B])+(@[a-zA-Z.]+)",
4551 "test([^B])*(@[a-zA-Z.]+)",
4552 "test(\\P{IsControl})+(@[a-zA-Z.]+)",
4553 "test(\\P{IsControl})*(@[a-zA-Z.]+)",
4554 }) {
4555 Matcher m = Pattern.compile(pStr, Pattern.CASE_INSENSITIVE)
4556 .matcher(input);
4557 try {
4558 if (m.find()) {
4559 failCount++;
4560 }
4561 } catch (Exception x) {
4562 failCount++;
4563 }
4564 }
4565 report("GroupCurly NotFoundSupp");
4566 }
4567
4568 // This test is for 8023647
4569 private static void groupCurlyBackoffTest() throws Exception {
4570 if (!"abc1c".matches("(\\w)+1\\1") ||
4571 "abc11".matches("(\\w)+1\\1")) {
4572 failCount++;
4573 }
4574 report("GroupCurly backoff");
4575 }
4576
4577 // This test is for 8012646
4578 private static void patternAsPredicate() throws Exception {
4579 Predicate<String> p = Pattern.compile("[a-z]+").asPredicate();
4580
4581 if (p.test("")) {
4582 failCount++;
4583 }
4584 if (!p.test("word")) {
4585 failCount++;
4586 }
4587 if (p.test("1234")) {
4588 failCount++;
4589 }
4590 report("Pattern.asPredicate");
4591 }
4592
4593 // This test is for 8035975
4594 private static void invalidFlags() throws Exception {
4595 for (int flag = 1; flag != 0; flag <<= 1) {
4596 switch (flag) {
4597 case Pattern.CASE_INSENSITIVE:
4598 case Pattern.MULTILINE:
4599 case Pattern.DOTALL:
4600 case Pattern.UNICODE_CASE:
4601 case Pattern.CANON_EQ:
4602 case Pattern.UNIX_LINES:
4603 case Pattern.LITERAL:
4604 case Pattern.UNICODE_CHARACTER_CLASS:
4605 case Pattern.COMMENTS:
4606 // valid flag, continue
4607 break;
4608 default:
4609 try {
4610 Pattern.compile(".", flag);
4611 failCount++;
4612 } catch (IllegalArgumentException expected) {
4613 }
4614 }
4615 }
4616 report("Invalid compile flags");
4617 }
4618
4619 private static void grapheme() throws Exception {
4620 Files.lines(Paths.get(System.getProperty("test.src", "."),
4621 "GraphemeBreakTest.txt"))
4622 .filter( ln -> ln.length() != 0 && !ln.startsWith("#") )
4623 .forEach( ln -> {
4624 ln = ln.replaceAll("\\s+|\\([a-zA-Z]+\\)|\\[[a-zA-Z]]+\\]|#.*", "");
4625 // System.out.println(str);
4626 String[] strs = ln.split("\u00f7|\u00d7");
4627 StringBuilder src = new StringBuilder();
4628 ArrayList<String> graphemes = new ArrayList<>();
4629 StringBuilder buf = new StringBuilder();
4630 int offBk = 0;
4631 for (String str : strs) {
4632 if (str.length() == 0) // first empty str
4633 continue;
4634 int cp = Integer.parseInt(str, 16);
4635 src.appendCodePoint(cp);
4636 buf.appendCodePoint(cp);
4637 offBk += (str.length() + 1);
4638 if (ln.charAt(offBk) == '\u00f7') { // DIV
4639 graphemes.add(buf.toString());
4640 buf = new StringBuilder();
4641 }
4642 }
4643 Pattern p = Pattern.compile("\\X");
4644 Matcher m = p.matcher(src.toString());
4645 Scanner s = new Scanner(src.toString()).useDelimiter("\\b{g}");
4646 for (String g : graphemes) {
4647 // System.out.printf(" grapheme:=[%s]%n", g);
4648 // (1) test \\X directly
4649 if (!m.find() || !m.group().equals(g)) {
4650 System.out.println("Failed \\X [" + ln + "] : " + g);
4651 failCount++;
4652 }
4653 // (2) test \\b{g} + \\X via Scanner
4654 boolean hasNext = s.hasNext(p);
4655 // if (!s.hasNext() || !s.next().equals(next)) {
4656 if (!s.hasNext(p) || !s.next(p).equals(g)) {
4657 System.out.println("Failed b{g} [" + ln + "] : " + g);
4658 failCount++;
4659 }
4660 }
4661 });
4662 // some sanity checks
4663 if (!Pattern.compile("\\X{10}").matcher("abcdefghij").matches() ||
4664 !Pattern.compile("\\b{g}(?:\\X\\b{g}){5}\\b{g}").matcher("abcde").matches() ||
4665 !Pattern.compile("(?:\\X\\b{g}){2}").matcher("\ud800\udc00\ud801\udc02").matches())
4666 failCount++;
4667 // make sure "\b{n}" still works
4668 if (!Pattern.compile("\\b{1}hello\\b{1} \\b{1}world\\b{1}").matcher("hello world").matches())
4669 failCount++;
4670 report("Unicode extended grapheme cluster");
4671 }
4672 }