1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include "char-predicates-inl.h"
38 #include "regexp-macro-assembler.h"
39 #include "regexp-macro-assembler-irregexp.h"
40 #include "string-stream.h"
42 #ifdef V8_INTERPRETED_REGEXP
43 #include "interpreter-irregexp.h"
44 #else // V8_INTERPRETED_REGEXP
45 #include "macro-assembler.h"
47 #if V8_TARGET_ARCH_ARM
48 #include "arm/assembler-arm.h"
49 #include "arm/macro-assembler-arm.h"
50 #include "arm/regexp-macro-assembler-arm.h"
52 #if V8_TARGET_ARCH_ARM64
53 #include "arm64/assembler-arm64.h"
54 #include "arm64/macro-assembler-arm64.h"
55 #include "arm64/regexp-macro-assembler-arm64.h"
57 #if V8_TARGET_ARCH_MIPS
58 #include "mips/assembler-mips.h"
59 #include "mips/macro-assembler-mips.h"
60 #include "mips/regexp-macro-assembler-mips.h"
62 #if V8_TARGET_ARCH_X64
63 #include "x64/assembler-x64.h"
64 #include "x64/macro-assembler-x64.h"
65 #include "x64/regexp-macro-assembler-x64.h"
67 #if V8_TARGET_ARCH_IA32
68 #include "ia32/assembler-ia32.h"
69 #include "ia32/macro-assembler-ia32.h"
70 #include "ia32/regexp-macro-assembler-ia32.h"
72 #endif // V8_INTERPRETED_REGEXP
74 using namespace v8::internal;
77 static bool CheckParse(const char* input) {
79 v8::HandleScope scope(CcTest::isolate());
80 Zone zone(CcTest::i_isolate());
81 FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
82 RegExpCompileData result;
83 return v8::internal::RegExpParser::ParseRegExp(
84 &reader, false, &result, &zone);
88 static SmartArrayPointer<const char> Parse(const char* input) {
90 v8::HandleScope scope(CcTest::isolate());
91 Zone zone(CcTest::i_isolate());
92 FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
93 RegExpCompileData result;
94 CHECK(v8::internal::RegExpParser::ParseRegExp(
95 &reader, false, &result, &zone));
96 CHECK(result.tree != NULL);
97 CHECK(result.error.is_null());
98 SmartArrayPointer<const char> output = result.tree->ToString(&zone);
103 static bool CheckSimple(const char* input) {
104 V8::Initialize(NULL);
105 v8::HandleScope scope(CcTest::isolate());
106 Zone zone(CcTest::i_isolate());
107 FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
108 RegExpCompileData result;
109 CHECK(v8::internal::RegExpParser::ParseRegExp(
110 &reader, false, &result, &zone));
111 CHECK(result.tree != NULL);
112 CHECK(result.error.is_null());
113 return result.simple;
122 static MinMaxPair CheckMinMaxMatch(const char* input) {
123 V8::Initialize(NULL);
124 v8::HandleScope scope(CcTest::isolate());
125 Zone zone(CcTest::i_isolate());
126 FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
127 RegExpCompileData result;
128 CHECK(v8::internal::RegExpParser::ParseRegExp(
129 &reader, false, &result, &zone));
130 CHECK(result.tree != NULL);
131 CHECK(result.error.is_null());
132 int min_match = result.tree->min_match();
133 int max_match = result.tree->max_match();
134 MinMaxPair pair = { min_match, max_match };
139 #define CHECK_PARSE_ERROR(input) CHECK(!CheckParse(input))
140 #define CHECK_PARSE_EQ(input, expected) CHECK_EQ(expected, Parse(input).get())
141 #define CHECK_SIMPLE(input, simple) CHECK_EQ(simple, CheckSimple(input));
142 #define CHECK_MIN_MAX(input, min, max) \
143 { MinMaxPair min_max = CheckMinMaxMatch(input); \
144 CHECK_EQ(min, min_max.min_match); \
145 CHECK_EQ(max, min_max.max_match); \
149 V8::Initialize(NULL);
151 CHECK_PARSE_ERROR("?");
153 CHECK_PARSE_EQ("abc", "'abc'");
154 CHECK_PARSE_EQ("", "%");
155 CHECK_PARSE_EQ("abc|def", "(| 'abc' 'def')");
156 CHECK_PARSE_EQ("abc|def|ghi", "(| 'abc' 'def' 'ghi')");
157 CHECK_PARSE_EQ("^xxx$", "(: @^i 'xxx' @$i)");
158 CHECK_PARSE_EQ("ab\\b\\d\\bcd", "(: 'ab' @b [0-9] @b 'cd')");
159 CHECK_PARSE_EQ("\\w|\\d", "(| [0-9 A-Z _ a-z] [0-9])");
160 CHECK_PARSE_EQ("a*", "(# 0 - g 'a')");
161 CHECK_PARSE_EQ("a*?", "(# 0 - n 'a')");
162 CHECK_PARSE_EQ("abc+", "(: 'ab' (# 1 - g 'c'))");
163 CHECK_PARSE_EQ("abc+?", "(: 'ab' (# 1 - n 'c'))");
164 CHECK_PARSE_EQ("xyz?", "(: 'xy' (# 0 1 g 'z'))");
165 CHECK_PARSE_EQ("xyz??", "(: 'xy' (# 0 1 n 'z'))");
166 CHECK_PARSE_EQ("xyz{0,1}", "(: 'xy' (# 0 1 g 'z'))");
167 CHECK_PARSE_EQ("xyz{0,1}?", "(: 'xy' (# 0 1 n 'z'))");
168 CHECK_PARSE_EQ("xyz{93}", "(: 'xy' (# 93 93 g 'z'))");
169 CHECK_PARSE_EQ("xyz{93}?", "(: 'xy' (# 93 93 n 'z'))");
170 CHECK_PARSE_EQ("xyz{1,32}", "(: 'xy' (# 1 32 g 'z'))");
171 CHECK_PARSE_EQ("xyz{1,32}?", "(: 'xy' (# 1 32 n 'z'))");
172 CHECK_PARSE_EQ("xyz{1,}", "(: 'xy' (# 1 - g 'z'))");
173 CHECK_PARSE_EQ("xyz{1,}?", "(: 'xy' (# 1 - n 'z'))");
174 CHECK_PARSE_EQ("a\\fb\\nc\\rd\\te\\vf", "'a\\x0cb\\x0ac\\x0dd\\x09e\\x0bf'");
175 CHECK_PARSE_EQ("a\\nb\\bc", "(: 'a\\x0ab' @b 'c')");
176 CHECK_PARSE_EQ("(?:foo)", "'foo'");
177 CHECK_PARSE_EQ("(?: foo )", "' foo '");
178 CHECK_PARSE_EQ("(foo|bar|baz)", "(^ (| 'foo' 'bar' 'baz'))");
179 CHECK_PARSE_EQ("foo|(bar|baz)|quux", "(| 'foo' (^ (| 'bar' 'baz')) 'quux')");
180 CHECK_PARSE_EQ("foo(?=bar)baz", "(: 'foo' (-> + 'bar') 'baz')");
181 CHECK_PARSE_EQ("foo(?!bar)baz", "(: 'foo' (-> - 'bar') 'baz')");
182 CHECK_PARSE_EQ("()", "(^ %)");
183 CHECK_PARSE_EQ("(?=)", "(-> + %)");
184 CHECK_PARSE_EQ("[]", "^[\\x00-\\uffff]"); // Doesn't compile on windows
185 CHECK_PARSE_EQ("[^]", "[\\x00-\\uffff]"); // \uffff isn't in codepage 1252
186 CHECK_PARSE_EQ("[x]", "[x]");
187 CHECK_PARSE_EQ("[xyz]", "[x y z]");
188 CHECK_PARSE_EQ("[a-zA-Z0-9]", "[a-z A-Z 0-9]");
189 CHECK_PARSE_EQ("[-123]", "[- 1 2 3]");
190 CHECK_PARSE_EQ("[^123]", "^[1 2 3]");
191 CHECK_PARSE_EQ("]", "']'");
192 CHECK_PARSE_EQ("}", "'}'");
193 CHECK_PARSE_EQ("[a-b-c]", "[a-b - c]");
194 CHECK_PARSE_EQ("[\\d]", "[0-9]");
195 CHECK_PARSE_EQ("[x\\dz]", "[x 0-9 z]");
196 CHECK_PARSE_EQ("[\\d-z]", "[0-9 - z]");
197 CHECK_PARSE_EQ("[\\d-\\d]", "[0-9 - 0-9]");
198 CHECK_PARSE_EQ("[z-\\d]", "[z - 0-9]");
199 // Control character outside character class.
200 CHECK_PARSE_EQ("\\cj\\cJ\\ci\\cI\\ck\\cK",
201 "'\\x0a\\x0a\\x09\\x09\\x0b\\x0b'");
202 CHECK_PARSE_EQ("\\c!", "'\\c!'");
203 CHECK_PARSE_EQ("\\c_", "'\\c_'");
204 CHECK_PARSE_EQ("\\c~", "'\\c~'");
205 CHECK_PARSE_EQ("\\c1", "'\\c1'");
206 // Control character inside character class.
207 CHECK_PARSE_EQ("[\\c!]", "[\\ c !]");
208 CHECK_PARSE_EQ("[\\c_]", "[\\x1f]");
209 CHECK_PARSE_EQ("[\\c~]", "[\\ c ~]");
210 CHECK_PARSE_EQ("[\\ca]", "[\\x01]");
211 CHECK_PARSE_EQ("[\\cz]", "[\\x1a]");
212 CHECK_PARSE_EQ("[\\cA]", "[\\x01]");
213 CHECK_PARSE_EQ("[\\cZ]", "[\\x1a]");
214 CHECK_PARSE_EQ("[\\c1]", "[\\x11]");
216 CHECK_PARSE_EQ("[a\\]c]", "[a ] c]");
217 CHECK_PARSE_EQ("\\[\\]\\{\\}\\(\\)\\%\\^\\#\\ ", "'[]{}()%^# '");
218 CHECK_PARSE_EQ("[\\[\\]\\{\\}\\(\\)\\%\\^\\#\\ ]", "[[ ] { } ( ) % ^ # ]");
219 CHECK_PARSE_EQ("\\0", "'\\x00'");
220 CHECK_PARSE_EQ("\\8", "'8'");
221 CHECK_PARSE_EQ("\\9", "'9'");
222 CHECK_PARSE_EQ("\\11", "'\\x09'");
223 CHECK_PARSE_EQ("\\11a", "'\\x09a'");
224 CHECK_PARSE_EQ("\\011", "'\\x09'");
225 CHECK_PARSE_EQ("\\00011", "'\\x0011'");
226 CHECK_PARSE_EQ("\\118", "'\\x098'");
227 CHECK_PARSE_EQ("\\111", "'I'");
228 CHECK_PARSE_EQ("\\1111", "'I1'");
229 CHECK_PARSE_EQ("(x)(x)(x)\\1", "(: (^ 'x') (^ 'x') (^ 'x') (<- 1))");
230 CHECK_PARSE_EQ("(x)(x)(x)\\2", "(: (^ 'x') (^ 'x') (^ 'x') (<- 2))");
231 CHECK_PARSE_EQ("(x)(x)(x)\\3", "(: (^ 'x') (^ 'x') (^ 'x') (<- 3))");
232 CHECK_PARSE_EQ("(x)(x)(x)\\4", "(: (^ 'x') (^ 'x') (^ 'x') '\\x04')");
233 CHECK_PARSE_EQ("(x)(x)(x)\\1*", "(: (^ 'x') (^ 'x') (^ 'x')"
234 " (# 0 - g (<- 1)))");
235 CHECK_PARSE_EQ("(x)(x)(x)\\2*", "(: (^ 'x') (^ 'x') (^ 'x')"
236 " (# 0 - g (<- 2)))");
237 CHECK_PARSE_EQ("(x)(x)(x)\\3*", "(: (^ 'x') (^ 'x') (^ 'x')"
238 " (# 0 - g (<- 3)))");
239 CHECK_PARSE_EQ("(x)(x)(x)\\4*", "(: (^ 'x') (^ 'x') (^ 'x')"
240 " (# 0 - g '\\x04'))");
241 CHECK_PARSE_EQ("(x)(x)(x)(x)(x)(x)(x)(x)(x)(x)\\10",
242 "(: (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x')"
243 " (^ 'x') (^ 'x') (^ 'x') (^ 'x') (<- 10))");
244 CHECK_PARSE_EQ("(x)(x)(x)(x)(x)(x)(x)(x)(x)(x)\\11",
245 "(: (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x')"
246 " (^ 'x') (^ 'x') (^ 'x') (^ 'x') '\\x09')");
247 CHECK_PARSE_EQ("(a)\\1", "(: (^ 'a') (<- 1))");
248 CHECK_PARSE_EQ("(a\\1)", "(^ 'a')");
249 CHECK_PARSE_EQ("(\\1a)", "(^ 'a')");
250 CHECK_PARSE_EQ("(?=a)?a", "'a'");
251 CHECK_PARSE_EQ("(?=a){0,10}a", "'a'");
252 CHECK_PARSE_EQ("(?=a){1,10}a", "(: (-> + 'a') 'a')");
253 CHECK_PARSE_EQ("(?=a){9,10}a", "(: (-> + 'a') 'a')");
254 CHECK_PARSE_EQ("(?!a)?a", "'a'");
255 CHECK_PARSE_EQ("\\1(a)", "(^ 'a')");
256 CHECK_PARSE_EQ("(?!(a))\\1", "(: (-> - (^ 'a')) (<- 1))");
257 CHECK_PARSE_EQ("(?!\\1(a\\1)\\1)\\1", "(: (-> - (: (^ 'a') (<- 1))) (<- 1))");
258 CHECK_PARSE_EQ("[\\0]", "[\\x00]");
259 CHECK_PARSE_EQ("[\\11]", "[\\x09]");
260 CHECK_PARSE_EQ("[\\11a]", "[\\x09 a]");
261 CHECK_PARSE_EQ("[\\011]", "[\\x09]");
262 CHECK_PARSE_EQ("[\\00011]", "[\\x00 1 1]");
263 CHECK_PARSE_EQ("[\\118]", "[\\x09 8]");
264 CHECK_PARSE_EQ("[\\111]", "[I]");
265 CHECK_PARSE_EQ("[\\1111]", "[I 1]");
266 CHECK_PARSE_EQ("\\x34", "'\x34'");
267 CHECK_PARSE_EQ("\\x60", "'\x60'");
268 CHECK_PARSE_EQ("\\x3z", "'x3z'");
269 CHECK_PARSE_EQ("\\c", "'\\c'");
270 CHECK_PARSE_EQ("\\u0034", "'\x34'");
271 CHECK_PARSE_EQ("\\u003z", "'u003z'");
272 CHECK_PARSE_EQ("foo[z]*", "(: 'foo' (# 0 - g [z]))");
274 CHECK_SIMPLE("", false);
275 CHECK_SIMPLE("a", true);
276 CHECK_SIMPLE("a|b", false);
277 CHECK_SIMPLE("a\\n", false);
278 CHECK_SIMPLE("^a", false);
279 CHECK_SIMPLE("a$", false);
280 CHECK_SIMPLE("a\\b!", false);
281 CHECK_SIMPLE("a\\Bb", false);
282 CHECK_SIMPLE("a*", false);
283 CHECK_SIMPLE("a*?", false);
284 CHECK_SIMPLE("a?", false);
285 CHECK_SIMPLE("a??", false);
286 CHECK_SIMPLE("a{0,1}?", false);
287 CHECK_SIMPLE("a{1,1}?", false);
288 CHECK_SIMPLE("a{1,2}?", false);
289 CHECK_SIMPLE("a+?", false);
290 CHECK_SIMPLE("(a)", false);
291 CHECK_SIMPLE("(a)\\1", false);
292 CHECK_SIMPLE("(\\1a)", false);
293 CHECK_SIMPLE("\\1(a)", false);
294 CHECK_SIMPLE("a\\s", false);
295 CHECK_SIMPLE("a\\S", false);
296 CHECK_SIMPLE("a\\d", false);
297 CHECK_SIMPLE("a\\D", false);
298 CHECK_SIMPLE("a\\w", false);
299 CHECK_SIMPLE("a\\W", false);
300 CHECK_SIMPLE("a.", false);
301 CHECK_SIMPLE("a\\q", false);
302 CHECK_SIMPLE("a[a]", false);
303 CHECK_SIMPLE("a[^a]", false);
304 CHECK_SIMPLE("a[a-z]", false);
305 CHECK_SIMPLE("a[\\q]", false);
306 CHECK_SIMPLE("a(?:b)", false);
307 CHECK_SIMPLE("a(?=b)", false);
308 CHECK_SIMPLE("a(?!b)", false);
309 CHECK_SIMPLE("\\x60", false);
310 CHECK_SIMPLE("\\u0060", false);
311 CHECK_SIMPLE("\\cA", false);
312 CHECK_SIMPLE("\\q", false);
313 CHECK_SIMPLE("\\1112", false);
314 CHECK_SIMPLE("\\0", false);
315 CHECK_SIMPLE("(a)\\1", false);
316 CHECK_SIMPLE("(?=a)?a", false);
317 CHECK_SIMPLE("(?!a)?a\\1", false);
318 CHECK_SIMPLE("(?:(?=a))a\\1", false);
320 CHECK_PARSE_EQ("a{}", "'a{}'");
321 CHECK_PARSE_EQ("a{,}", "'a{,}'");
322 CHECK_PARSE_EQ("a{", "'a{'");
323 CHECK_PARSE_EQ("a{z}", "'a{z}'");
324 CHECK_PARSE_EQ("a{1z}", "'a{1z}'");
325 CHECK_PARSE_EQ("a{12z}", "'a{12z}'");
326 CHECK_PARSE_EQ("a{12,", "'a{12,'");
327 CHECK_PARSE_EQ("a{12,3b", "'a{12,3b'");
328 CHECK_PARSE_EQ("{}", "'{}'");
329 CHECK_PARSE_EQ("{,}", "'{,}'");
330 CHECK_PARSE_EQ("{", "'{'");
331 CHECK_PARSE_EQ("{z}", "'{z}'");
332 CHECK_PARSE_EQ("{1z}", "'{1z}'");
333 CHECK_PARSE_EQ("{12z}", "'{12z}'");
334 CHECK_PARSE_EQ("{12,", "'{12,'");
335 CHECK_PARSE_EQ("{12,3b", "'{12,3b'");
337 CHECK_MIN_MAX("a", 1, 1);
338 CHECK_MIN_MAX("abc", 3, 3);
339 CHECK_MIN_MAX("a[bc]d", 3, 3);
340 CHECK_MIN_MAX("a|bc", 1, 2);
341 CHECK_MIN_MAX("ab|c", 1, 2);
342 CHECK_MIN_MAX("a||bc", 0, 2);
343 CHECK_MIN_MAX("|", 0, 0);
344 CHECK_MIN_MAX("(?:ab)", 2, 2);
345 CHECK_MIN_MAX("(?:ab|cde)", 2, 3);
346 CHECK_MIN_MAX("(?:ab)|cde", 2, 3);
347 CHECK_MIN_MAX("(ab)", 2, 2);
348 CHECK_MIN_MAX("(ab|cde)", 2, 3);
349 CHECK_MIN_MAX("(ab)\\1", 2, 4);
350 CHECK_MIN_MAX("(ab|cde)\\1", 2, 6);
351 CHECK_MIN_MAX("(?:ab)?", 0, 2);
352 CHECK_MIN_MAX("(?:ab)*", 0, RegExpTree::kInfinity);
353 CHECK_MIN_MAX("(?:ab)+", 2, RegExpTree::kInfinity);
354 CHECK_MIN_MAX("a?", 0, 1);
355 CHECK_MIN_MAX("a*", 0, RegExpTree::kInfinity);
356 CHECK_MIN_MAX("a+", 1, RegExpTree::kInfinity);
357 CHECK_MIN_MAX("a??", 0, 1);
358 CHECK_MIN_MAX("a*?", 0, RegExpTree::kInfinity);
359 CHECK_MIN_MAX("a+?", 1, RegExpTree::kInfinity);
360 CHECK_MIN_MAX("(?:a?)?", 0, 1);
361 CHECK_MIN_MAX("(?:a*)?", 0, RegExpTree::kInfinity);
362 CHECK_MIN_MAX("(?:a+)?", 0, RegExpTree::kInfinity);
363 CHECK_MIN_MAX("(?:a?)+", 0, RegExpTree::kInfinity);
364 CHECK_MIN_MAX("(?:a*)+", 0, RegExpTree::kInfinity);
365 CHECK_MIN_MAX("(?:a+)+", 1, RegExpTree::kInfinity);
366 CHECK_MIN_MAX("(?:a?)*", 0, RegExpTree::kInfinity);
367 CHECK_MIN_MAX("(?:a*)*", 0, RegExpTree::kInfinity);
368 CHECK_MIN_MAX("(?:a+)*", 0, RegExpTree::kInfinity);
369 CHECK_MIN_MAX("a{0}", 0, 0);
370 CHECK_MIN_MAX("(?:a+){0}", 0, 0);
371 CHECK_MIN_MAX("(?:a+){0,0}", 0, 0);
372 CHECK_MIN_MAX("a*b", 1, RegExpTree::kInfinity);
373 CHECK_MIN_MAX("a+b", 2, RegExpTree::kInfinity);
374 CHECK_MIN_MAX("a*b|c", 1, RegExpTree::kInfinity);
375 CHECK_MIN_MAX("a+b|c", 1, RegExpTree::kInfinity);
376 CHECK_MIN_MAX("(?:a{5,1000000}){3,1000000}", 15, RegExpTree::kInfinity);
377 CHECK_MIN_MAX("(?:ab){4,7}", 8, 14);
378 CHECK_MIN_MAX("a\\bc", 2, 2);
379 CHECK_MIN_MAX("a\\Bc", 2, 2);
380 CHECK_MIN_MAX("a\\sc", 3, 3);
381 CHECK_MIN_MAX("a\\Sc", 3, 3);
382 CHECK_MIN_MAX("a(?=b)c", 2, 2);
383 CHECK_MIN_MAX("a(?=bbb|bb)c", 2, 2);
384 CHECK_MIN_MAX("a(?!bbb|bb)c", 2, 2);
388 TEST(ParserRegression) {
389 CHECK_PARSE_EQ("[A-Z$-][x]", "(! [A-Z $ -] [x])");
390 CHECK_PARSE_EQ("a{3,4*}", "(: 'a{3,' (# 0 - g '4') '}')");
391 CHECK_PARSE_EQ("{", "'{'");
392 CHECK_PARSE_EQ("a|", "(| 'a' %)");
395 static void ExpectError(const char* input,
396 const char* expected) {
397 V8::Initialize(NULL);
398 v8::HandleScope scope(CcTest::isolate());
399 Zone zone(CcTest::i_isolate());
400 FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
401 RegExpCompileData result;
402 CHECK(!v8::internal::RegExpParser::ParseRegExp(
403 &reader, false, &result, &zone));
404 CHECK(result.tree == NULL);
405 CHECK(!result.error.is_null());
406 SmartArrayPointer<char> str = result.error->ToCString(ALLOW_NULLS);
407 CHECK_EQ(expected, str.get());
412 const char* kEndBackslash = "\\ at end of pattern";
413 ExpectError("\\", kEndBackslash);
414 const char* kUnterminatedGroup = "Unterminated group";
415 ExpectError("(foo", kUnterminatedGroup);
416 const char* kInvalidGroup = "Invalid group";
417 ExpectError("(?", kInvalidGroup);
418 const char* kUnterminatedCharacterClass = "Unterminated character class";
419 ExpectError("[", kUnterminatedCharacterClass);
420 ExpectError("[a-", kUnterminatedCharacterClass);
421 const char* kNothingToRepeat = "Nothing to repeat";
422 ExpectError("*", kNothingToRepeat);
423 ExpectError("?", kNothingToRepeat);
424 ExpectError("+", kNothingToRepeat);
425 ExpectError("{1}", kNothingToRepeat);
426 ExpectError("{1,2}", kNothingToRepeat);
427 ExpectError("{1,}", kNothingToRepeat);
429 // Check that we don't allow more than kMaxCapture captures
430 const int kMaxCaptures = 1 << 16; // Must match RegExpParser::kMaxCaptures.
431 const char* kTooManyCaptures = "Too many captures";
432 HeapStringAllocator allocator;
433 StringStream accumulator(&allocator);
434 for (int i = 0; i <= kMaxCaptures; i++) {
435 accumulator.Add("()");
437 SmartArrayPointer<const char> many_captures(accumulator.ToCString());
438 ExpectError(many_captures.get(), kTooManyCaptures);
442 static bool IsDigit(uc16 c) {
443 return ('0' <= c && c <= '9');
447 static bool NotDigit(uc16 c) {
452 static bool IsWhiteSpaceOrLineTerminator(uc16 c) {
453 // According to ECMA 5.1, 15.10.2.12 the CharacterClassEscape \s includes
454 // WhiteSpace (7.2) and LineTerminator (7.3) values.
455 return v8::internal::WhiteSpaceOrLineTerminator::Is(c);
459 static bool NotWhiteSpaceNorLineTermiantor(uc16 c) {
460 return !IsWhiteSpaceOrLineTerminator(c);
464 static bool NotWord(uc16 c) {
465 return !IsRegExpWord(c);
469 static void TestCharacterClassEscapes(uc16 c, bool (pred)(uc16 c)) {
470 Zone zone(CcTest::i_isolate());
471 ZoneList<CharacterRange>* ranges =
472 new(&zone) ZoneList<CharacterRange>(2, &zone);
473 CharacterRange::AddClassEscape(c, ranges, &zone);
474 for (unsigned i = 0; i < (1 << 16); i++) {
475 bool in_class = false;
476 for (int j = 0; !in_class && j < ranges->length(); j++) {
477 CharacterRange& range = ranges->at(j);
478 in_class = (range.from() <= i && i <= range.to());
480 CHECK_EQ(pred(i), in_class);
485 TEST(CharacterClassEscapes) {
486 v8::internal::V8::Initialize(NULL);
487 TestCharacterClassEscapes('.', IsRegExpNewline);
488 TestCharacterClassEscapes('d', IsDigit);
489 TestCharacterClassEscapes('D', NotDigit);
490 TestCharacterClassEscapes('s', IsWhiteSpaceOrLineTerminator);
491 TestCharacterClassEscapes('S', NotWhiteSpaceNorLineTermiantor);
492 TestCharacterClassEscapes('w', IsRegExpWord);
493 TestCharacterClassEscapes('W', NotWord);
497 static RegExpNode* Compile(const char* input,
501 V8::Initialize(NULL);
502 Isolate* isolate = CcTest::i_isolate();
503 FlatStringReader reader(isolate, CStrVector(input));
504 RegExpCompileData compile_data;
505 if (!v8::internal::RegExpParser::ParseRegExp(&reader, multiline,
506 &compile_data, zone))
508 Handle<String> pattern = isolate->factory()->
509 NewStringFromUtf8(CStrVector(input)).ToHandleChecked();
510 Handle<String> sample_subject =
511 isolate->factory()->NewStringFromUtf8(CStrVector("")).ToHandleChecked();
512 RegExpEngine::Compile(&compile_data,
520 return compile_data.node;
524 static void Execute(const char* input,
527 bool dot_output = false) {
528 v8::HandleScope scope(CcTest::isolate());
529 Zone zone(CcTest::i_isolate());
530 RegExpNode* node = Compile(input, multiline, is_ascii, &zone);
534 RegExpEngine::DotPrint(input, node, false);
544 static const int kNoKey;
545 static int NoValue() { return 0; }
546 static inline int Compare(int a, int b) {
557 const int TestConfig::kNoKey = 0;
560 static unsigned PseudoRandom(int i, int j) {
561 return ~(~((i * 781) ^ (j * 329)));
565 TEST(SplayTreeSimple) {
566 v8::internal::V8::Initialize(NULL);
567 static const unsigned kLimit = 1000;
568 Zone zone(CcTest::i_isolate());
569 ZoneSplayTree<TestConfig> tree(&zone);
571 for (unsigned i = 0; i < kLimit; i++) seen[i] = false;
572 #define CHECK_MAPS_EQUAL() do { \
573 for (unsigned k = 0; k < kLimit; k++) \
574 CHECK_EQ(seen[k], tree.Find(k, &loc)); \
576 for (int i = 0; i < 50; i++) {
577 for (int j = 0; j < 50; j++) {
578 unsigned next = PseudoRandom(i, j) % kLimit;
580 // We've already seen this one. Check the value and remove
582 ZoneSplayTree<TestConfig>::Locator loc;
583 CHECK(tree.Find(next, &loc));
584 CHECK_EQ(next, loc.key());
585 CHECK_EQ(3 * next, loc.value());
590 // Check that it wasn't there already and then add it.
591 ZoneSplayTree<TestConfig>::Locator loc;
592 CHECK(!tree.Find(next, &loc));
593 CHECK(tree.Insert(next, &loc));
594 CHECK_EQ(next, loc.key());
595 loc.set_value(3 * next);
599 int val = PseudoRandom(j, i) % kLimit;
601 ZoneSplayTree<TestConfig>::Locator loc;
602 CHECK(tree.FindGreatestLessThan(val, &loc));
603 CHECK_EQ(loc.key(), val);
606 val = PseudoRandom(i + j, i - j) % kLimit;
608 ZoneSplayTree<TestConfig>::Locator loc;
609 CHECK(tree.FindLeastGreaterThan(val, &loc));
610 CHECK_EQ(loc.key(), val);
618 TEST(DispatchTableConstruction) {
619 v8::internal::V8::Initialize(NULL);
620 // Initialize test data.
621 static const int kLimit = 1000;
622 static const int kRangeCount = 8;
623 static const int kRangeSize = 16;
624 uc16 ranges[kRangeCount][2 * kRangeSize];
625 for (int i = 0; i < kRangeCount; i++) {
626 Vector<uc16> range(ranges[i], 2 * kRangeSize);
627 for (int j = 0; j < 2 * kRangeSize; j++) {
628 range[j] = PseudoRandom(i + 25, j + 87) % kLimit;
631 for (int j = 1; j < 2 * kRangeSize; j++) {
632 CHECK(range[j-1] <= range[j]);
635 // Enter test data into dispatch table.
636 Zone zone(CcTest::i_isolate());
637 DispatchTable table(&zone);
638 for (int i = 0; i < kRangeCount; i++) {
639 uc16* range = ranges[i];
640 for (int j = 0; j < 2 * kRangeSize; j += 2)
641 table.AddRange(CharacterRange(range[j], range[j + 1]), i, &zone);
643 // Check that the table looks as we would expect
644 for (int p = 0; p < kLimit; p++) {
645 OutSet* outs = table.Get(p);
646 for (int j = 0; j < kRangeCount; j++) {
647 uc16* range = ranges[j];
649 for (int k = 0; !is_on && (k < 2 * kRangeSize); k += 2)
650 is_on = (range[k] <= p && p <= range[k + 1]);
651 CHECK_EQ(is_on, outs->Get(j));
657 // Test of debug-only syntax.
660 TEST(ParsePossessiveRepetition) {
661 bool old_flag_value = FLAG_regexp_possessive_quantifier;
663 // Enable possessive quantifier syntax.
664 FLAG_regexp_possessive_quantifier = true;
666 CHECK_PARSE_EQ("a*+", "(# 0 - p 'a')");
667 CHECK_PARSE_EQ("a++", "(# 1 - p 'a')");
668 CHECK_PARSE_EQ("a?+", "(# 0 1 p 'a')");
669 CHECK_PARSE_EQ("a{10,20}+", "(# 10 20 p 'a')");
670 CHECK_PARSE_EQ("za{10,20}+b", "(: 'z' (# 10 20 p 'a') 'b')");
672 // Disable possessive quantifier syntax.
673 FLAG_regexp_possessive_quantifier = false;
675 CHECK_PARSE_ERROR("a*+");
676 CHECK_PARSE_ERROR("a++");
677 CHECK_PARSE_ERROR("a?+");
678 CHECK_PARSE_ERROR("a{10,20}+");
679 CHECK_PARSE_ERROR("a{10,20}+b");
681 FLAG_regexp_possessive_quantifier = old_flag_value;
686 // Tests of interpreter.
689 #ifndef V8_INTERPRETED_REGEXP
691 #if V8_TARGET_ARCH_IA32
692 typedef RegExpMacroAssemblerIA32 ArchRegExpMacroAssembler;
693 #elif V8_TARGET_ARCH_X64
694 typedef RegExpMacroAssemblerX64 ArchRegExpMacroAssembler;
695 #elif V8_TARGET_ARCH_ARM
696 typedef RegExpMacroAssemblerARM ArchRegExpMacroAssembler;
697 #elif V8_TARGET_ARCH_ARM64
698 typedef RegExpMacroAssemblerARM64 ArchRegExpMacroAssembler;
699 #elif V8_TARGET_ARCH_MIPS
700 typedef RegExpMacroAssemblerMIPS ArchRegExpMacroAssembler;
703 class ContextInitializer {
706 : scope_(CcTest::isolate()),
707 env_(v8::Context::New(CcTest::isolate())) {
710 ~ContextInitializer() {
714 v8::HandleScope scope_;
715 v8::Handle<v8::Context> env_;
719 static ArchRegExpMacroAssembler::Result Execute(Code* code,
722 const byte* input_start,
723 const byte* input_end,
725 return NativeRegExpMacroAssembler::Execute(
733 CcTest::i_isolate());
737 TEST(MacroAssemblerNativeSuccess) {
738 v8::V8::Initialize();
739 ContextInitializer initializer;
740 Isolate* isolate = CcTest::i_isolate();
741 Factory* factory = isolate->factory();
744 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 4, &zone);
748 Handle<String> source = factory->NewStringFromStaticAscii("");
749 Handle<Object> code_object = m.GetCode(source);
750 Handle<Code> code = Handle<Code>::cast(code_object);
752 int captures[4] = {42, 37, 87, 117};
753 Handle<String> input = factory->NewStringFromStaticAscii("foofoo");
754 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
755 const byte* start_adr =
756 reinterpret_cast<const byte*>(seq_input->GetCharsAddress());
758 NativeRegExpMacroAssembler::Result result =
763 start_adr + seq_input->length(),
766 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
767 CHECK_EQ(-1, captures[0]);
768 CHECK_EQ(-1, captures[1]);
769 CHECK_EQ(-1, captures[2]);
770 CHECK_EQ(-1, captures[3]);
774 TEST(MacroAssemblerNativeSimple) {
775 v8::V8::Initialize();
776 ContextInitializer initializer;
777 Isolate* isolate = CcTest::i_isolate();
778 Factory* factory = isolate->factory();
781 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 4, &zone);
783 Label fail, backtrack;
784 m.PushBacktrack(&fail);
785 m.CheckNotAtStart(NULL);
786 m.LoadCurrentCharacter(2, NULL);
787 m.CheckNotCharacter('o', NULL);
788 m.LoadCurrentCharacter(1, NULL, false);
789 m.CheckNotCharacter('o', NULL);
790 m.LoadCurrentCharacter(0, NULL, false);
791 m.CheckNotCharacter('f', NULL);
792 m.WriteCurrentPositionToRegister(0, 0);
793 m.WriteCurrentPositionToRegister(1, 3);
794 m.AdvanceCurrentPosition(3);
795 m.PushBacktrack(&backtrack);
802 Handle<String> source = factory->NewStringFromStaticAscii("^foo");
803 Handle<Object> code_object = m.GetCode(source);
804 Handle<Code> code = Handle<Code>::cast(code_object);
806 int captures[4] = {42, 37, 87, 117};
807 Handle<String> input = factory->NewStringFromStaticAscii("foofoo");
808 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
809 Address start_adr = seq_input->GetCharsAddress();
811 NativeRegExpMacroAssembler::Result result =
816 start_adr + input->length(),
819 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
820 CHECK_EQ(0, captures[0]);
821 CHECK_EQ(3, captures[1]);
822 CHECK_EQ(-1, captures[2]);
823 CHECK_EQ(-1, captures[3]);
825 input = factory->NewStringFromStaticAscii("barbarbar");
826 seq_input = Handle<SeqOneByteString>::cast(input);
827 start_adr = seq_input->GetCharsAddress();
829 result = Execute(*code,
833 start_adr + input->length(),
836 CHECK_EQ(NativeRegExpMacroAssembler::FAILURE, result);
840 TEST(MacroAssemblerNativeSimpleUC16) {
841 v8::V8::Initialize();
842 ContextInitializer initializer;
843 Isolate* isolate = CcTest::i_isolate();
844 Factory* factory = isolate->factory();
847 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::UC16, 4, &zone);
849 Label fail, backtrack;
850 m.PushBacktrack(&fail);
851 m.CheckNotAtStart(NULL);
852 m.LoadCurrentCharacter(2, NULL);
853 m.CheckNotCharacter('o', NULL);
854 m.LoadCurrentCharacter(1, NULL, false);
855 m.CheckNotCharacter('o', NULL);
856 m.LoadCurrentCharacter(0, NULL, false);
857 m.CheckNotCharacter('f', NULL);
858 m.WriteCurrentPositionToRegister(0, 0);
859 m.WriteCurrentPositionToRegister(1, 3);
860 m.AdvanceCurrentPosition(3);
861 m.PushBacktrack(&backtrack);
868 Handle<String> source = factory->NewStringFromStaticAscii("^foo");
869 Handle<Object> code_object = m.GetCode(source);
870 Handle<Code> code = Handle<Code>::cast(code_object);
872 int captures[4] = {42, 37, 87, 117};
873 const uc16 input_data[6] = {'f', 'o', 'o', 'f', 'o',
874 static_cast<uc16>(0x2603)};
875 Handle<String> input = factory->NewStringFromTwoByte(
876 Vector<const uc16>(input_data, 6)).ToHandleChecked();
877 Handle<SeqTwoByteString> seq_input = Handle<SeqTwoByteString>::cast(input);
878 Address start_adr = seq_input->GetCharsAddress();
880 NativeRegExpMacroAssembler::Result result =
885 start_adr + input->length(),
888 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
889 CHECK_EQ(0, captures[0]);
890 CHECK_EQ(3, captures[1]);
891 CHECK_EQ(-1, captures[2]);
892 CHECK_EQ(-1, captures[3]);
894 const uc16 input_data2[9] = {'b', 'a', 'r', 'b', 'a', 'r', 'b', 'a',
895 static_cast<uc16>(0x2603)};
896 input = factory->NewStringFromTwoByte(
897 Vector<const uc16>(input_data2, 9)).ToHandleChecked();
898 seq_input = Handle<SeqTwoByteString>::cast(input);
899 start_adr = seq_input->GetCharsAddress();
901 result = Execute(*code,
905 start_adr + input->length() * 2,
908 CHECK_EQ(NativeRegExpMacroAssembler::FAILURE, result);
912 TEST(MacroAssemblerNativeBacktrack) {
913 v8::V8::Initialize();
914 ContextInitializer initializer;
915 Isolate* isolate = CcTest::i_isolate();
916 Factory* factory = isolate->factory();
919 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 0, &zone);
923 m.LoadCurrentCharacter(10, &fail);
926 m.PushBacktrack(&backtrack);
927 m.LoadCurrentCharacter(10, NULL);
932 Handle<String> source = factory->NewStringFromStaticAscii("..........");
933 Handle<Object> code_object = m.GetCode(source);
934 Handle<Code> code = Handle<Code>::cast(code_object);
936 Handle<String> input = factory->NewStringFromStaticAscii("foofoo");
937 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
938 Address start_adr = seq_input->GetCharsAddress();
940 NativeRegExpMacroAssembler::Result result =
945 start_adr + input->length(),
948 CHECK_EQ(NativeRegExpMacroAssembler::FAILURE, result);
952 TEST(MacroAssemblerNativeBackReferenceASCII) {
953 v8::V8::Initialize();
954 ContextInitializer initializer;
955 Isolate* isolate = CcTest::i_isolate();
956 Factory* factory = isolate->factory();
959 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 4, &zone);
961 m.WriteCurrentPositionToRegister(0, 0);
962 m.AdvanceCurrentPosition(2);
963 m.WriteCurrentPositionToRegister(1, 0);
965 m.CheckNotBackReference(0, &nomatch);
968 m.AdvanceCurrentPosition(2);
970 m.CheckNotBackReference(0, &missing_match);
971 m.WriteCurrentPositionToRegister(2, 0);
973 m.Bind(&missing_match);
976 Handle<String> source = factory->NewStringFromStaticAscii("^(..)..\1");
977 Handle<Object> code_object = m.GetCode(source);
978 Handle<Code> code = Handle<Code>::cast(code_object);
980 Handle<String> input = factory->NewStringFromStaticAscii("fooofo");
981 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
982 Address start_adr = seq_input->GetCharsAddress();
985 NativeRegExpMacroAssembler::Result result =
990 start_adr + input->length(),
993 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
994 CHECK_EQ(0, output[0]);
995 CHECK_EQ(2, output[1]);
996 CHECK_EQ(6, output[2]);
997 CHECK_EQ(-1, output[3]);
1001 TEST(MacroAssemblerNativeBackReferenceUC16) {
1002 v8::V8::Initialize();
1003 ContextInitializer initializer;
1004 Isolate* isolate = CcTest::i_isolate();
1005 Factory* factory = isolate->factory();
1008 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::UC16, 4, &zone);
1010 m.WriteCurrentPositionToRegister(0, 0);
1011 m.AdvanceCurrentPosition(2);
1012 m.WriteCurrentPositionToRegister(1, 0);
1014 m.CheckNotBackReference(0, &nomatch);
1017 m.AdvanceCurrentPosition(2);
1018 Label missing_match;
1019 m.CheckNotBackReference(0, &missing_match);
1020 m.WriteCurrentPositionToRegister(2, 0);
1022 m.Bind(&missing_match);
1025 Handle<String> source = factory->NewStringFromStaticAscii("^(..)..\1");
1026 Handle<Object> code_object = m.GetCode(source);
1027 Handle<Code> code = Handle<Code>::cast(code_object);
1029 const uc16 input_data[6] = {'f', 0x2028, 'o', 'o', 'f', 0x2028};
1030 Handle<String> input = factory->NewStringFromTwoByte(
1031 Vector<const uc16>(input_data, 6)).ToHandleChecked();
1032 Handle<SeqTwoByteString> seq_input = Handle<SeqTwoByteString>::cast(input);
1033 Address start_adr = seq_input->GetCharsAddress();
1036 NativeRegExpMacroAssembler::Result result =
1041 start_adr + input->length() * 2,
1044 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1045 CHECK_EQ(0, output[0]);
1046 CHECK_EQ(2, output[1]);
1047 CHECK_EQ(6, output[2]);
1048 CHECK_EQ(-1, output[3]);
1053 TEST(MacroAssemblernativeAtStart) {
1054 v8::V8::Initialize();
1055 ContextInitializer initializer;
1056 Isolate* isolate = CcTest::i_isolate();
1057 Factory* factory = isolate->factory();
1060 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 0, &zone);
1062 Label not_at_start, newline, fail;
1063 m.CheckNotAtStart(¬_at_start);
1064 // Check that prevchar = '\n' and current = 'f'.
1065 m.CheckCharacter('\n', &newline);
1069 m.LoadCurrentCharacter(0, &fail);
1070 m.CheckNotCharacter('f', &fail);
1073 m.Bind(¬_at_start);
1074 // Check that prevchar = 'o' and current = 'b'.
1076 m.CheckCharacter('o', &prevo);
1079 m.LoadCurrentCharacter(0, &fail);
1080 m.CheckNotCharacter('b', &fail);
1083 Handle<String> source = factory->NewStringFromStaticAscii("(^f|ob)");
1084 Handle<Object> code_object = m.GetCode(source);
1085 Handle<Code> code = Handle<Code>::cast(code_object);
1087 Handle<String> input = factory->NewStringFromStaticAscii("foobar");
1088 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1089 Address start_adr = seq_input->GetCharsAddress();
1091 NativeRegExpMacroAssembler::Result result =
1096 start_adr + input->length(),
1099 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1101 result = Execute(*code,
1105 start_adr + input->length(),
1108 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1112 TEST(MacroAssemblerNativeBackRefNoCase) {
1113 v8::V8::Initialize();
1114 ContextInitializer initializer;
1115 Isolate* isolate = CcTest::i_isolate();
1116 Factory* factory = isolate->factory();
1119 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 4, &zone);
1123 m.WriteCurrentPositionToRegister(0, 0);
1124 m.WriteCurrentPositionToRegister(2, 0);
1125 m.AdvanceCurrentPosition(3);
1126 m.WriteCurrentPositionToRegister(3, 0);
1127 m.CheckNotBackReferenceIgnoreCase(2, &fail); // Match "AbC".
1128 m.CheckNotBackReferenceIgnoreCase(2, &fail); // Match "ABC".
1129 Label expected_fail;
1130 m.CheckNotBackReferenceIgnoreCase(2, &expected_fail);
1134 m.Bind(&expected_fail);
1135 m.AdvanceCurrentPosition(3); // Skip "xYz"
1136 m.CheckNotBackReferenceIgnoreCase(2, &succ);
1140 m.WriteCurrentPositionToRegister(1, 0);
1143 Handle<String> source =
1144 factory->NewStringFromStaticAscii("^(abc)\1\1(?!\1)...(?!\1)");
1145 Handle<Object> code_object = m.GetCode(source);
1146 Handle<Code> code = Handle<Code>::cast(code_object);
1148 Handle<String> input =
1149 factory->NewStringFromStaticAscii("aBcAbCABCxYzab");
1150 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1151 Address start_adr = seq_input->GetCharsAddress();
1154 NativeRegExpMacroAssembler::Result result =
1159 start_adr + input->length(),
1162 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1163 CHECK_EQ(0, output[0]);
1164 CHECK_EQ(12, output[1]);
1165 CHECK_EQ(0, output[2]);
1166 CHECK_EQ(3, output[3]);
1171 TEST(MacroAssemblerNativeRegisters) {
1172 v8::V8::Initialize();
1173 ContextInitializer initializer;
1174 Isolate* isolate = CcTest::i_isolate();
1175 Factory* factory = isolate->factory();
1178 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 6, &zone);
1180 uc16 foo_chars[3] = {'f', 'o', 'o'};
1181 Vector<const uc16> foo(foo_chars, 3);
1183 enum registers { out1, out2, out3, out4, out5, out6, sp, loop_cnt };
1186 m.WriteCurrentPositionToRegister(out1, 0); // Output: [0]
1187 m.PushRegister(out1, RegExpMacroAssembler::kNoStackLimitCheck);
1188 m.PushBacktrack(&backtrack);
1189 m.WriteStackPointerToRegister(sp);
1190 // Fill stack and registers
1191 m.AdvanceCurrentPosition(2);
1192 m.WriteCurrentPositionToRegister(out1, 0);
1193 m.PushRegister(out1, RegExpMacroAssembler::kNoStackLimitCheck);
1194 m.PushBacktrack(&fail);
1195 // Drop backtrack stack frames.
1196 m.ReadStackPointerFromRegister(sp);
1197 // And take the first backtrack (to &backtrack)
1200 m.PushCurrentPosition();
1201 m.AdvanceCurrentPosition(2);
1202 m.PopCurrentPosition();
1205 m.PopRegister(out1);
1206 m.ReadCurrentPositionFromRegister(out1);
1207 m.AdvanceCurrentPosition(3);
1208 m.WriteCurrentPositionToRegister(out2, 0); // [0,3]
1211 m.SetRegister(loop_cnt, 0); // loop counter
1213 m.AdvanceRegister(loop_cnt, 1);
1214 m.AdvanceCurrentPosition(1);
1215 m.IfRegisterLT(loop_cnt, 3, &loop);
1216 m.WriteCurrentPositionToRegister(out3, 0); // [0,3,6]
1219 m.SetRegister(loop_cnt, 2); // loop counter
1221 m.AdvanceRegister(loop_cnt, -1);
1222 m.AdvanceCurrentPosition(1);
1223 m.IfRegisterGE(loop_cnt, 0, &loop2);
1224 m.WriteCurrentPositionToRegister(out4, 0); // [0,3,6,9]
1228 m.PushRegister(out4, RegExpMacroAssembler::kNoStackLimitCheck);
1229 m.PushRegister(out4, RegExpMacroAssembler::kNoStackLimitCheck);
1230 m.ReadCurrentPositionFromRegister(out3);
1232 m.AdvanceCurrentPosition(1);
1233 m.CheckGreedyLoop(&exit_loop3);
1235 m.Bind(&exit_loop3);
1236 m.PopCurrentPosition();
1237 m.WriteCurrentPositionToRegister(out5, 0); // [0,3,6,9,9,-1]
1244 Handle<String> source =
1245 factory->NewStringFromStaticAscii("<loop test>");
1246 Handle<Object> code_object = m.GetCode(source);
1247 Handle<Code> code = Handle<Code>::cast(code_object);
1249 // String long enough for test (content doesn't matter).
1250 Handle<String> input =
1251 factory->NewStringFromStaticAscii("foofoofoofoofoo");
1252 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1253 Address start_adr = seq_input->GetCharsAddress();
1256 NativeRegExpMacroAssembler::Result result =
1261 start_adr + input->length(),
1264 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1265 CHECK_EQ(0, output[0]);
1266 CHECK_EQ(3, output[1]);
1267 CHECK_EQ(6, output[2]);
1268 CHECK_EQ(9, output[3]);
1269 CHECK_EQ(9, output[4]);
1270 CHECK_EQ(-1, output[5]);
1274 TEST(MacroAssemblerStackOverflow) {
1275 v8::V8::Initialize();
1276 ContextInitializer initializer;
1277 Isolate* isolate = CcTest::i_isolate();
1278 Factory* factory = isolate->factory();
1281 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 0, &zone);
1285 m.PushBacktrack(&loop);
1288 Handle<String> source =
1289 factory->NewStringFromStaticAscii("<stack overflow test>");
1290 Handle<Object> code_object = m.GetCode(source);
1291 Handle<Code> code = Handle<Code>::cast(code_object);
1293 // String long enough for test (content doesn't matter).
1294 Handle<String> input =
1295 factory->NewStringFromStaticAscii("dummy");
1296 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1297 Address start_adr = seq_input->GetCharsAddress();
1299 NativeRegExpMacroAssembler::Result result =
1304 start_adr + input->length(),
1307 CHECK_EQ(NativeRegExpMacroAssembler::EXCEPTION, result);
1308 CHECK(isolate->has_pending_exception());
1309 isolate->clear_pending_exception();
1313 TEST(MacroAssemblerNativeLotsOfRegisters) {
1314 v8::V8::Initialize();
1315 ContextInitializer initializer;
1316 Isolate* isolate = CcTest::i_isolate();
1317 Factory* factory = isolate->factory();
1320 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 2, &zone);
1322 // At least 2048, to ensure the allocated space for registers
1323 // span one full page.
1324 const int large_number = 8000;
1325 m.WriteCurrentPositionToRegister(large_number, 42);
1326 m.WriteCurrentPositionToRegister(0, 0);
1327 m.WriteCurrentPositionToRegister(1, 1);
1329 m.CheckNotBackReference(0, &done); // Performs a system-stack push.
1331 m.PushRegister(large_number, RegExpMacroAssembler::kNoStackLimitCheck);
1335 Handle<String> source =
1336 factory->NewStringFromStaticAscii("<huge register space test>");
1337 Handle<Object> code_object = m.GetCode(source);
1338 Handle<Code> code = Handle<Code>::cast(code_object);
1340 // String long enough for test (content doesn't matter).
1341 Handle<String> input =
1342 factory->NewStringFromStaticAscii("sample text");
1343 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1344 Address start_adr = seq_input->GetCharsAddress();
1347 NativeRegExpMacroAssembler::Result result =
1352 start_adr + input->length(),
1355 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1356 CHECK_EQ(0, captures[0]);
1357 CHECK_EQ(42, captures[1]);
1359 isolate->clear_pending_exception();
1362 #else // V8_INTERPRETED_REGEXP
1364 TEST(MacroAssembler) {
1365 V8::Initialize(NULL);
1367 Zone zone(CcTest::i_isolate());
1368 RegExpMacroAssemblerIrregexp m(Vector<byte>(codes, 1024), &zone);
1370 Label start, fail, backtrack;
1372 m.SetRegister(4, 42);
1373 m.PushRegister(4, RegExpMacroAssembler::kNoStackLimitCheck);
1374 m.AdvanceRegister(4, 42);
1378 m.PushBacktrack(&fail);
1379 m.CheckNotAtStart(NULL);
1380 m.LoadCurrentCharacter(0, NULL);
1381 m.CheckNotCharacter('f', NULL);
1382 m.LoadCurrentCharacter(1, NULL);
1383 m.CheckNotCharacter('o', NULL);
1384 m.LoadCurrentCharacter(2, NULL);
1385 m.CheckNotCharacter('o', NULL);
1386 m.WriteCurrentPositionToRegister(0, 0);
1387 m.WriteCurrentPositionToRegister(1, 3);
1388 m.WriteCurrentPositionToRegister(2, 1);
1389 m.WriteCurrentPositionToRegister(3, 2);
1390 m.AdvanceCurrentPosition(3);
1391 m.PushBacktrack(&backtrack);
1394 m.ClearRegisters(2, 3);
1400 Isolate* isolate = CcTest::i_isolate();
1401 Factory* factory = isolate->factory();
1402 HandleScope scope(isolate);
1404 Handle<String> source = factory->NewStringFromStaticAscii("^f(o)o");
1405 Handle<ByteArray> array = Handle<ByteArray>::cast(m.GetCode(source));
1408 const uc16 str1[] = {'f', 'o', 'o', 'b', 'a', 'r'};
1409 Handle<String> f1_16 = factory->NewStringFromTwoByte(
1410 Vector<const uc16>(str1, 6)).ToHandleChecked();
1412 CHECK(IrregexpInterpreter::Match(isolate, array, f1_16, captures, 0));
1413 CHECK_EQ(0, captures[0]);
1414 CHECK_EQ(3, captures[1]);
1415 CHECK_EQ(1, captures[2]);
1416 CHECK_EQ(2, captures[3]);
1417 CHECK_EQ(84, captures[4]);
1419 const uc16 str2[] = {'b', 'a', 'r', 'f', 'o', 'o'};
1420 Handle<String> f2_16 = factory->NewStringFromTwoByte(
1421 Vector<const uc16>(str2, 6)).ToHandleChecked();
1423 CHECK(!IrregexpInterpreter::Match(isolate, array, f2_16, captures, 0));
1424 CHECK_EQ(42, captures[0]);
1427 #endif // V8_INTERPRETED_REGEXP
1430 TEST(AddInverseToTable) {
1431 v8::internal::V8::Initialize(NULL);
1432 static const int kLimit = 1000;
1433 static const int kRangeCount = 16;
1434 for (int t = 0; t < 10; t++) {
1435 Zone zone(CcTest::i_isolate());
1436 ZoneList<CharacterRange>* ranges =
1437 new(&zone) ZoneList<CharacterRange>(kRangeCount, &zone);
1438 for (int i = 0; i < kRangeCount; i++) {
1439 int from = PseudoRandom(t + 87, i + 25) % kLimit;
1440 int to = from + (PseudoRandom(i + 87, t + 25) % (kLimit / 20));
1441 if (to > kLimit) to = kLimit;
1442 ranges->Add(CharacterRange(from, to), &zone);
1444 DispatchTable table(&zone);
1445 DispatchTableConstructor cons(&table, false, &zone);
1446 cons.set_choice_index(0);
1447 cons.AddInverse(ranges);
1448 for (int i = 0; i < kLimit; i++) {
1450 for (int j = 0; !is_on && j < kRangeCount; j++)
1451 is_on = ranges->at(j).Contains(i);
1452 OutSet* set = table.Get(i);
1453 CHECK_EQ(is_on, set->Get(0) == false);
1456 Zone zone(CcTest::i_isolate());
1457 ZoneList<CharacterRange>* ranges =
1458 new(&zone) ZoneList<CharacterRange>(1, &zone);
1459 ranges->Add(CharacterRange(0xFFF0, 0xFFFE), &zone);
1460 DispatchTable table(&zone);
1461 DispatchTableConstructor cons(&table, false, &zone);
1462 cons.set_choice_index(0);
1463 cons.AddInverse(ranges);
1464 CHECK(!table.Get(0xFFFE)->Get(0));
1465 CHECK(table.Get(0xFFFF)->Get(0));
1469 static uc32 canonicalize(uc32 c) {
1470 unibrow::uchar canon[unibrow::Ecma262Canonicalize::kMaxWidth];
1471 int count = unibrow::Ecma262Canonicalize::Convert(c, '\0', canon, NULL);
1481 TEST(LatinCanonicalize) {
1482 unibrow::Mapping<unibrow::Ecma262UnCanonicalize> un_canonicalize;
1483 for (char lower = 'a'; lower <= 'z'; lower++) {
1484 char upper = lower + ('A' - 'a');
1485 CHECK_EQ(canonicalize(lower), canonicalize(upper));
1486 unibrow::uchar uncanon[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1487 int length = un_canonicalize.get(lower, '\0', uncanon);
1488 CHECK_EQ(2, length);
1489 CHECK_EQ(upper, uncanon[0]);
1490 CHECK_EQ(lower, uncanon[1]);
1492 for (uc32 c = 128; c < (1 << 21); c++)
1493 CHECK_GE(canonicalize(c), 128);
1494 unibrow::Mapping<unibrow::ToUppercase> to_upper;
1495 // Canonicalization is only defined for the Basic Multilingual Plane.
1496 for (uc32 c = 0; c < (1 << 16); c++) {
1497 unibrow::uchar upper[unibrow::ToUppercase::kMaxWidth];
1498 int length = to_upper.get(c, '\0', upper);
1504 if (length > 1 || (c >= 128 && u < 128))
1506 CHECK_EQ(u, canonicalize(c));
1511 static uc32 CanonRangeEnd(uc32 c) {
1512 unibrow::uchar canon[unibrow::CanonicalizationRange::kMaxWidth];
1513 int count = unibrow::CanonicalizationRange::Convert(c, '\0', canon, NULL);
1523 TEST(RangeCanonicalization) {
1524 // Check that we arrive at the same result when using the basic
1525 // range canonicalization primitives as when using immediate
1526 // canonicalization.
1527 unibrow::Mapping<unibrow::Ecma262UnCanonicalize> un_canonicalize;
1528 int block_start = 0;
1529 while (block_start <= 0xFFFF) {
1530 uc32 block_end = CanonRangeEnd(block_start);
1531 unsigned block_length = block_end - block_start + 1;
1532 if (block_length > 1) {
1533 unibrow::uchar first[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1534 int first_length = un_canonicalize.get(block_start, '\0', first);
1535 for (unsigned i = 1; i < block_length; i++) {
1536 unibrow::uchar succ[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1537 int succ_length = un_canonicalize.get(block_start + i, '\0', succ);
1538 CHECK_EQ(first_length, succ_length);
1539 for (int j = 0; j < succ_length; j++) {
1540 int calc = first[j] + i;
1541 int found = succ[j];
1542 CHECK_EQ(calc, found);
1546 block_start = block_start + block_length;
1551 TEST(UncanonicalizeEquivalence) {
1552 unibrow::Mapping<unibrow::Ecma262UnCanonicalize> un_canonicalize;
1553 unibrow::uchar chars[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1554 for (int i = 0; i < (1 << 16); i++) {
1555 int length = un_canonicalize.get(i, '\0', chars);
1556 for (int j = 0; j < length; j++) {
1557 unibrow::uchar chars2[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1558 int length2 = un_canonicalize.get(chars[j], '\0', chars2);
1559 CHECK_EQ(length, length2);
1560 for (int k = 0; k < length; k++)
1561 CHECK_EQ(static_cast<int>(chars[k]), static_cast<int>(chars2[k]));
1567 static void TestRangeCaseIndependence(CharacterRange input,
1568 Vector<CharacterRange> expected) {
1569 Zone zone(CcTest::i_isolate());
1570 int count = expected.length();
1571 ZoneList<CharacterRange>* list =
1572 new(&zone) ZoneList<CharacterRange>(count, &zone);
1573 input.AddCaseEquivalents(list, false, &zone);
1574 CHECK_EQ(count, list->length());
1575 for (int i = 0; i < list->length(); i++) {
1576 CHECK_EQ(expected[i].from(), list->at(i).from());
1577 CHECK_EQ(expected[i].to(), list->at(i).to());
1582 static void TestSimpleRangeCaseIndependence(CharacterRange input,
1583 CharacterRange expected) {
1584 EmbeddedVector<CharacterRange, 1> vector;
1585 vector[0] = expected;
1586 TestRangeCaseIndependence(input, vector);
1590 TEST(CharacterRangeCaseIndependence) {
1591 v8::internal::V8::Initialize(NULL);
1592 TestSimpleRangeCaseIndependence(CharacterRange::Singleton('a'),
1593 CharacterRange::Singleton('A'));
1594 TestSimpleRangeCaseIndependence(CharacterRange::Singleton('z'),
1595 CharacterRange::Singleton('Z'));
1596 TestSimpleRangeCaseIndependence(CharacterRange('a', 'z'),
1597 CharacterRange('A', 'Z'));
1598 TestSimpleRangeCaseIndependence(CharacterRange('c', 'f'),
1599 CharacterRange('C', 'F'));
1600 TestSimpleRangeCaseIndependence(CharacterRange('a', 'b'),
1601 CharacterRange('A', 'B'));
1602 TestSimpleRangeCaseIndependence(CharacterRange('y', 'z'),
1603 CharacterRange('Y', 'Z'));
1604 TestSimpleRangeCaseIndependence(CharacterRange('a' - 1, 'z' + 1),
1605 CharacterRange('A', 'Z'));
1606 TestSimpleRangeCaseIndependence(CharacterRange('A', 'Z'),
1607 CharacterRange('a', 'z'));
1608 TestSimpleRangeCaseIndependence(CharacterRange('C', 'F'),
1609 CharacterRange('c', 'f'));
1610 TestSimpleRangeCaseIndependence(CharacterRange('A' - 1, 'Z' + 1),
1611 CharacterRange('a', 'z'));
1612 // Here we need to add [l-z] to complete the case independence of
1613 // [A-Za-z] but we expect [a-z] to be added since we always add a
1614 // whole block at a time.
1615 TestSimpleRangeCaseIndependence(CharacterRange('A', 'k'),
1616 CharacterRange('a', 'z'));
1620 static bool InClass(uc16 c, ZoneList<CharacterRange>* ranges) {
1623 for (int i = 0; i < ranges->length(); i++) {
1624 CharacterRange range = ranges->at(i);
1625 if (range.from() <= c && c <= range.to())
1632 TEST(CharClassDifference) {
1633 v8::internal::V8::Initialize(NULL);
1634 Zone zone(CcTest::i_isolate());
1635 ZoneList<CharacterRange>* base =
1636 new(&zone) ZoneList<CharacterRange>(1, &zone);
1637 base->Add(CharacterRange::Everything(), &zone);
1638 Vector<const int> overlay = CharacterRange::GetWordBounds();
1639 ZoneList<CharacterRange>* included = NULL;
1640 ZoneList<CharacterRange>* excluded = NULL;
1641 CharacterRange::Split(base, overlay, &included, &excluded, &zone);
1642 for (int i = 0; i < (1 << 16); i++) {
1643 bool in_base = InClass(i, base);
1645 bool in_overlay = false;
1646 for (int j = 0; !in_overlay && j < overlay.length(); j += 2) {
1647 if (overlay[j] <= i && i < overlay[j+1])
1650 CHECK_EQ(in_overlay, InClass(i, included));
1651 CHECK_EQ(!in_overlay, InClass(i, excluded));
1653 CHECK(!InClass(i, included));
1654 CHECK(!InClass(i, excluded));
1660 TEST(CanonicalizeCharacterSets) {
1661 v8::internal::V8::Initialize(NULL);
1662 Zone zone(CcTest::i_isolate());
1663 ZoneList<CharacterRange>* list =
1664 new(&zone) ZoneList<CharacterRange>(4, &zone);
1665 CharacterSet set(list);
1667 list->Add(CharacterRange(10, 20), &zone);
1668 list->Add(CharacterRange(30, 40), &zone);
1669 list->Add(CharacterRange(50, 60), &zone);
1671 ASSERT_EQ(3, list->length());
1672 ASSERT_EQ(10, list->at(0).from());
1673 ASSERT_EQ(20, list->at(0).to());
1674 ASSERT_EQ(30, list->at(1).from());
1675 ASSERT_EQ(40, list->at(1).to());
1676 ASSERT_EQ(50, list->at(2).from());
1677 ASSERT_EQ(60, list->at(2).to());
1680 list->Add(CharacterRange(10, 20), &zone);
1681 list->Add(CharacterRange(50, 60), &zone);
1682 list->Add(CharacterRange(30, 40), &zone);
1684 ASSERT_EQ(3, list->length());
1685 ASSERT_EQ(10, list->at(0).from());
1686 ASSERT_EQ(20, list->at(0).to());
1687 ASSERT_EQ(30, list->at(1).from());
1688 ASSERT_EQ(40, list->at(1).to());
1689 ASSERT_EQ(50, list->at(2).from());
1690 ASSERT_EQ(60, list->at(2).to());
1693 list->Add(CharacterRange(30, 40), &zone);
1694 list->Add(CharacterRange(10, 20), &zone);
1695 list->Add(CharacterRange(25, 25), &zone);
1696 list->Add(CharacterRange(100, 100), &zone);
1697 list->Add(CharacterRange(1, 1), &zone);
1699 ASSERT_EQ(5, list->length());
1700 ASSERT_EQ(1, list->at(0).from());
1701 ASSERT_EQ(1, list->at(0).to());
1702 ASSERT_EQ(10, list->at(1).from());
1703 ASSERT_EQ(20, list->at(1).to());
1704 ASSERT_EQ(25, list->at(2).from());
1705 ASSERT_EQ(25, list->at(2).to());
1706 ASSERT_EQ(30, list->at(3).from());
1707 ASSERT_EQ(40, list->at(3).to());
1708 ASSERT_EQ(100, list->at(4).from());
1709 ASSERT_EQ(100, list->at(4).to());
1712 list->Add(CharacterRange(10, 19), &zone);
1713 list->Add(CharacterRange(21, 30), &zone);
1714 list->Add(CharacterRange(20, 20), &zone);
1716 ASSERT_EQ(1, list->length());
1717 ASSERT_EQ(10, list->at(0).from());
1718 ASSERT_EQ(30, list->at(0).to());
1722 TEST(CharacterRangeMerge) {
1723 v8::internal::V8::Initialize(NULL);
1724 Zone zone(CcTest::i_isolate());
1725 ZoneList<CharacterRange> l1(4, &zone);
1726 ZoneList<CharacterRange> l2(4, &zone);
1727 // Create all combinations of intersections of ranges, both singletons and
1732 // The five kinds of singleton intersections:
1734 // Y - outside before
1735 // Y - outside touching start
1737 // Y - outside touching end
1738 // Y - outside after
1740 for (int i = 0; i < 5; i++) {
1741 l1.Add(CharacterRange::Singleton(offset + 2), &zone);
1742 l2.Add(CharacterRange::Singleton(offset + i), &zone);
1746 // The seven kinds of singleton/non-singleton intersections:
1748 // Y - outside before
1749 // Y - outside touching start
1750 // Y - inside touching start
1751 // Y - entirely inside
1752 // Y - inside touching end
1753 // Y - outside touching end
1754 // Y - disjoint after
1756 for (int i = 0; i < 7; i++) {
1757 l1.Add(CharacterRange::Range(offset + 2, offset + 4), &zone);
1758 l2.Add(CharacterRange::Singleton(offset + i), &zone);
1762 // The eleven kinds of non-singleton intersections:
1765 // YYYY - outside before.
1766 // YYYY - outside touching start.
1767 // YYYY - overlapping start
1768 // YYYY - inside touching start
1769 // YYYY - entirely inside
1770 // YYYY - inside touching end
1771 // YYYY - overlapping end
1772 // YYYY - outside touching end
1773 // YYYY - outside after
1774 // YYYYYYYY - identical
1775 // YYYYYYYYYYYY - containing entirely.
1777 for (int i = 0; i < 9; i++) {
1778 l1.Add(CharacterRange::Range(offset + 6, offset + 15), &zone); // Length 8.
1779 l2.Add(CharacterRange::Range(offset + 2 * i, offset + 2 * i + 3), &zone);
1782 l1.Add(CharacterRange::Range(offset + 6, offset + 15), &zone);
1783 l2.Add(CharacterRange::Range(offset + 6, offset + 15), &zone);
1785 l1.Add(CharacterRange::Range(offset + 6, offset + 15), &zone);
1786 l2.Add(CharacterRange::Range(offset + 4, offset + 17), &zone);
1789 // Different kinds of multi-range overlap:
1790 // XXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXX
1791 // YYYY Y YYYY Y YYYY Y YYYY Y YYYY Y YYYY Y
1793 l1.Add(CharacterRange::Range(offset, offset + 21), &zone);
1794 l1.Add(CharacterRange::Range(offset + 31, offset + 52), &zone);
1795 for (int i = 0; i < 6; i++) {
1796 l2.Add(CharacterRange::Range(offset + 2, offset + 5), &zone);
1797 l2.Add(CharacterRange::Singleton(offset + 8), &zone);
1801 ASSERT(CharacterRange::IsCanonical(&l1));
1802 ASSERT(CharacterRange::IsCanonical(&l2));
1804 ZoneList<CharacterRange> first_only(4, &zone);
1805 ZoneList<CharacterRange> second_only(4, &zone);
1806 ZoneList<CharacterRange> both(4, &zone);
1811 V8::Initialize(NULL);
1812 Execute("\\b\\w+\\b", false, true, true);