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| 1 // Copyright 2006-2007 The RE2 Authors. All Rights Reserved. | |
| 2 // Use of this source code is governed by a BSD-style | |
| 3 // license that can be found in the LICENSE file. | |
| 4 | |
| 5 #include <stdlib.h> | |
| 6 #include <vector> | |
| 7 #include "util/test.h" | |
| 8 #include "re2/prog.h" | |
| 9 #include "re2/regexp.h" | |
| 10 #include "re2/testing/tester.h" | |
| 11 #include "re2/testing/exhaustive_tester.h" | |
| 12 | |
| 13 namespace re2 { | |
| 14 | |
| 15 struct RegexpTest { | |
| 16 const char* regexp; | |
| 17 const char* text; | |
| 18 }; | |
| 19 | |
| 20 RegexpTest simple_tests[] = { | |
| 21 { "a", "a" }, | |
| 22 { "a", "zyzzyva" }, | |
| 23 { "a+", "aa" }, | |
| 24 { "(a+|b)+", "ab" }, | |
| 25 { "ab|cd", "xabcdx" }, | |
| 26 { "h.*od?", "hello\ngoodbye\n" }, | |
| 27 { "h.*o", "hello\ngoodbye\n" }, | |
| 28 { "h.*o", "goodbye\nhello\n" }, | |
| 29 { "h.*o", "hello world" }, | |
| 30 { "h.*o", "othello, world" }, | |
| 31 { "[^\\s\\S]", "aaaaaaa" }, | |
| 32 { "a", "aaaaaaa" }, | |
| 33 { "a*", "aaaaaaa" }, | |
| 34 { "a*", "" }, | |
| 35 { "a*", NULL }, | |
| 36 { "ab|cd", "xabcdx" }, | |
| 37 { "a", "cab" }, | |
| 38 { "a*b", "cab" }, | |
| 39 { "((((((((((((((((((((x))))))))))))))))))))", "x" }, | |
| 40 { "[abcd]", "xxxabcdxxx" }, | |
| 41 { "[^x]", "xxxabcdxxx" }, | |
| 42 { "[abcd]+", "xxxabcdxxx" }, | |
| 43 { "[^x]+", "xxxabcdxxx" }, | |
| 44 { "(fo|foo)", "fo" }, | |
| 45 { "(foo|fo)", "foo" }, | |
| 46 | |
| 47 { "aa", "aA" }, | |
| 48 { "a", "Aa" }, | |
| 49 { "a", "A" }, | |
| 50 { "ABC", "abc" }, | |
| 51 { "abc", "XABCY" }, | |
| 52 { "ABC", "xabcy" }, | |
| 53 | |
| 54 // Make sure ^ and $ work. | |
| 55 // The pathological cases didn't work | |
| 56 // in the original grep code. | |
| 57 { "foo|bar|[A-Z]", "foo" }, | |
| 58 { "^(foo|bar|[A-Z])", "foo" }, | |
| 59 { "(foo|bar|[A-Z])$", "foo\n" }, | |
| 60 { "(foo|bar|[A-Z])$", "foo" }, | |
| 61 { "^(foo|bar|[A-Z])$", "foo\n" }, | |
| 62 { "^(foo|bar|[A-Z])$", "foo" }, | |
| 63 { "^(foo|bar|[A-Z])$", "bar" }, | |
| 64 { "^(foo|bar|[A-Z])$", "X" }, | |
| 65 { "^(foo|bar|[A-Z])$", "XY" }, | |
| 66 { "^(fo|foo)$", "fo" }, | |
| 67 { "^(fo|foo)$", "foo" }, | |
| 68 { "^^(fo|foo)$", "fo" }, | |
| 69 { "^^(fo|foo)$", "foo" }, | |
| 70 { "^$", "" }, | |
| 71 { "^$", "x" }, | |
| 72 { "^^$", "" }, | |
| 73 { "^$$", "" }, | |
| 74 { "^^$", "x" }, | |
| 75 { "^$$", "x" }, | |
| 76 { "^^$$", "" }, | |
| 77 { "^^$$", "x" }, | |
| 78 { "^^^^^^^^$$$$$$$$", "" }, | |
| 79 { "^", "x" }, | |
| 80 { "$", "x" }, | |
| 81 | |
| 82 // Word boundaries. | |
| 83 { "\\bfoo\\b", "nofoo foo that" }, | |
| 84 { "a\\b", "faoa x" }, | |
| 85 { "\\bbar", "bar x" }, | |
| 86 { "\\bbar", "foo\nbar x" }, | |
| 87 { "bar\\b", "foobar" }, | |
| 88 { "bar\\b", "foobar\nxxx" }, | |
| 89 { "(foo|bar|[A-Z])\\b", "foo" }, | |
| 90 { "(foo|bar|[A-Z])\\b", "foo\n" }, | |
| 91 { "\\b", "" }, | |
| 92 { "\\b", "x" }, | |
| 93 { "\\b(foo|bar|[A-Z])", "foo" }, | |
| 94 { "\\b(foo|bar|[A-Z])\\b", "X" }, | |
| 95 { "\\b(foo|bar|[A-Z])\\b", "XY" }, | |
| 96 { "\\b(foo|bar|[A-Z])\\b", "bar" }, | |
| 97 { "\\b(foo|bar|[A-Z])\\b", "foo" }, | |
| 98 { "\\b(foo|bar|[A-Z])\\b", "foo\n" }, | |
| 99 { "\\b(foo|bar|[A-Z])\\b", "ffoo bbar N x" }, | |
| 100 { "\\b(fo|foo)\\b", "fo" }, | |
| 101 { "\\b(fo|foo)\\b", "foo" }, | |
| 102 { "\\b\\b", "" }, | |
| 103 { "\\b\\b", "x" }, | |
| 104 { "\\b$", "" }, | |
| 105 { "\\b$", "x" }, | |
| 106 { "\\b$", "y x" }, | |
| 107 { "\\b.$", "x" }, | |
| 108 { "^\\b(fo|foo)\\b", "fo" }, | |
| 109 { "^\\b(fo|foo)\\b", "foo" }, | |
| 110 { "^\\b", "" }, | |
| 111 { "^\\b", "x" }, | |
| 112 { "^\\b\\b", "" }, | |
| 113 { "^\\b\\b", "x" }, | |
| 114 { "^\\b$", "" }, | |
| 115 { "^\\b$", "x" }, | |
| 116 { "^\\b.$", "x" }, | |
| 117 { "^\\b.\\b$", "x" }, | |
| 118 { "^^^^^^^^\\b$$$$$$$", "" }, | |
| 119 { "^^^^^^^^\\b.$$$$$$", "x" }, | |
| 120 { "^^^^^^^^\\b$$$$$$$", "x" }, | |
| 121 | |
| 122 // Non-word boundaries. | |
| 123 { "\\Bfoo\\B", "n foo xfoox that" }, | |
| 124 { "a\\B", "faoa x" }, | |
| 125 { "\\Bbar", "bar x" }, | |
| 126 { "\\Bbar", "foo\nbar x" }, | |
| 127 { "bar\\B", "foobar" }, | |
| 128 { "bar\\B", "foobar\nxxx" }, | |
| 129 { "(foo|bar|[A-Z])\\B", "foox" }, | |
| 130 { "(foo|bar|[A-Z])\\B", "foo\n" }, | |
| 131 { "\\B", "" }, | |
| 132 { "\\B", "x" }, | |
| 133 { "\\B(foo|bar|[A-Z])", "foo" }, | |
| 134 { "\\B(foo|bar|[A-Z])\\B", "xXy" }, | |
| 135 { "\\B(foo|bar|[A-Z])\\B", "XY" }, | |
| 136 { "\\B(foo|bar|[A-Z])\\B", "XYZ" }, | |
| 137 { "\\B(foo|bar|[A-Z])\\B", "abara" }, | |
| 138 { "\\B(foo|bar|[A-Z])\\B", "xfoo_" }, | |
| 139 { "\\B(foo|bar|[A-Z])\\B", "xfoo\n" }, | |
| 140 { "\\B(foo|bar|[A-Z])\\B", "foo bar vNx" }, | |
| 141 { "\\B(fo|foo)\\B", "xfoo" }, | |
| 142 { "\\B(foo|fo)\\B", "xfooo" }, | |
| 143 { "\\B\\B", "" }, | |
| 144 { "\\B\\B", "x" }, | |
| 145 { "\\B$", "" }, | |
| 146 { "\\B$", "x" }, | |
| 147 { "\\B$", "y x" }, | |
| 148 { "\\B.$", "x" }, | |
| 149 { "^\\B(fo|foo)\\B", "fo" }, | |
| 150 { "^\\B(fo|foo)\\B", "foo" }, | |
| 151 { "^\\B", "" }, | |
| 152 { "^\\B", "x" }, | |
| 153 { "^\\B\\B", "" }, | |
| 154 { "^\\B\\B", "x" }, | |
| 155 { "^\\B$", "" }, | |
| 156 { "^\\B$", "x" }, | |
| 157 { "^\\B.$", "x" }, | |
| 158 { "^\\B.\\B$", "x" }, | |
| 159 { "^^^^^^^^\\B$$$$$$$", "" }, | |
| 160 { "^^^^^^^^\\B.$$$$$$", "x" }, | |
| 161 { "^^^^^^^^\\B$$$$$$$", "x" }, | |
| 162 | |
| 163 // PCRE uses only ASCII for \b computation. | |
| 164 // All non-ASCII are *not* word characters. | |
| 165 { "\\bx\\b", "x" }, | |
| 166 { "\\bx\\b", "x>" }, | |
| 167 { "\\bx\\b", "<x" }, | |
| 168 { "\\bx\\b", "<x>" }, | |
| 169 { "\\bx\\b", "ax" }, | |
| 170 { "\\bx\\b", "xb" }, | |
| 171 { "\\bx\\b", "axb" }, | |
| 172 { "\\bx\\b", "«x" }, | |
| 173 { "\\bx\\b", "x»" }, | |
| 174 { "\\bx\\b", "«x»" }, | |
| 175 { "\\bx\\b", "axb" }, | |
| 176 { "\\bx\\b", "áxβ" }, | |
| 177 { "\\Bx\\B", "axb" }, | |
| 178 { "\\Bx\\B", "áxβ" }, | |
| 179 | |
| 180 // Weird boundary cases. | |
| 181 { "^$^$", "" }, | |
| 182 { "^$^", "" }, | |
| 183 { "$^$", "" }, | |
| 184 | |
| 185 { "^$^$", "x" }, | |
| 186 { "^$^", "x" }, | |
| 187 { "$^$", "x" }, | |
| 188 | |
| 189 { "^$^$", "x\ny" }, | |
| 190 { "^$^", "x\ny" }, | |
| 191 { "$^$", "x\ny" }, | |
| 192 | |
| 193 { "^$^$", "x\n\ny" }, | |
| 194 { "^$^", "x\n\ny" }, | |
| 195 { "$^$", "x\n\ny" }, | |
| 196 | |
| 197 { "^(foo\\$)$", "foo$bar" }, | |
| 198 { "(foo\\$)", "foo$bar" }, | |
| 199 { "^...$", "abc" }, | |
| 200 | |
| 201 // UTF-8 | |
| 202 { "^\xe6\x9c\xac$", "\xe6\x9c\xac" }, | |
| 203 { "^...$", "\xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e" }, | |
| 204 { "^...$", ".\xe6\x9c\xac." }, | |
| 205 | |
| 206 { "^\\C\\C\\C$", "\xe6\x9c\xac" }, | |
| 207 { "^\\C$", "\xe6\x9c\xac" }, | |
| 208 { "^\\C\\C\\C$", "\xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e" }, | |
| 209 | |
| 210 // Latin1 | |
| 211 { "^...$", "\xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e" }, | |
| 212 { "^.........$", "\xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e" }, | |
| 213 { "^...$", ".\xe6\x9c\xac." }, | |
| 214 { "^.....$", ".\xe6\x9c\xac." }, | |
| 215 | |
| 216 // Perl v Posix | |
| 217 { "\\B(fo|foo)\\B", "xfooo" }, | |
| 218 { "(fo|foo)", "foo" }, | |
| 219 | |
| 220 // Octal escapes. | |
| 221 { "\\141", "a" }, | |
| 222 { "\\060", "0" }, | |
| 223 { "\\0600", "00" }, | |
| 224 { "\\608", "08" }, | |
| 225 { "\\01", "\01" }, | |
| 226 { "\\018", "\01" "8" }, | |
| 227 | |
| 228 // Hexadecimal escapes | |
| 229 { "\\x{61}", "a" }, | |
| 230 { "\\x61", "a" }, | |
| 231 { "\\x{00000061}", "a" }, | |
| 232 | |
| 233 // Unicode scripts. | |
| 234 { "\\p{Greek}+", "aαβb" }, | |
| 235 { "\\P{Greek}+", "aαβb" }, | |
| 236 { "\\p{^Greek}+", "aαβb" }, | |
| 237 { "\\P{^Greek}+", "aαβb" }, | |
| 238 | |
| 239 // Unicode properties. Nd is decimal number. N is any number. | |
| 240 { "[^0-9]+", "abc123" }, | |
| 241 { "\\p{Nd}+", "abc123²³¼½¾₀₉" }, | |
| 242 { "\\p{^Nd}+", "abc123²³¼½¾₀₉" }, | |
| 243 { "\\P{Nd}+", "abc123²³¼½¾₀₉" }, | |
| 244 { "\\P{^Nd}+", "abc123²³¼½¾₀₉" }, | |
| 245 { "\\pN+", "abc123²³¼½¾₀₉" }, | |
| 246 { "\\p{N}+", "abc123²³¼½¾₀₉" }, | |
| 247 { "\\p{^N}+", "abc123²³¼½¾₀₉" }, | |
| 248 | |
| 249 { "\\p{Any}+", "abc123" }, | |
| 250 | |
| 251 // Character classes & case folding. | |
| 252 { "(?i)[@-A]+", "@AaB" }, // matches @Aa but not B | |
| 253 { "(?i)[A-Z]+", "aAzZ" }, | |
| 254 { "(?i)[^\\\\]+", "Aa\\" }, // \\ is between A-Z and a-z - | |
| 255 // splits the ranges in an interesting way. | |
| 256 | |
| 257 // would like to use, but PCRE mishandles in full-match, non-greedy mode | |
| 258 // { "(?i)[\\\\]+", "Aa" }, | |
| 259 | |
| 260 { "(?i)[acegikmoqsuwy]+", "acegikmoqsuwyACEGIKMOQSUWY" }, | |
| 261 | |
| 262 // Character classes & case folding. | |
| 263 { "[@-A]+", "@AaB" }, | |
| 264 { "[A-Z]+", "aAzZ" }, | |
| 265 { "[^\\\\]+", "Aa\\" }, | |
| 266 { "[acegikmoqsuwy]+", "acegikmoqsuwyACEGIKMOQSUWY" }, | |
| 267 | |
| 268 // Anchoring. (^abc in aabcdef was a former bug) | |
| 269 // The tester checks for a match in the text and | |
| 270 // subpieces of the text with a byte removed on either side. | |
| 271 { "^abc", "abcdef" }, | |
| 272 { "^abc", "aabcdef" }, | |
| 273 { "^[ay]*[bx]+c", "abcdef" }, | |
| 274 { "^[ay]*[bx]+c", "aabcdef" }, | |
| 275 { "def$", "abcdef" }, | |
| 276 { "def$", "abcdeff" }, | |
| 277 { "d[ex][fy]$", "abcdef" }, | |
| 278 { "d[ex][fy]$", "abcdeff" }, | |
| 279 { "[dz][ex][fy]$", "abcdef" }, | |
| 280 { "[dz][ex][fy]$", "abcdeff" }, | |
| 281 { "(?m)^abc", "abcdef" }, | |
| 282 { "(?m)^abc", "aabcdef" }, | |
| 283 { "(?m)^[ay]*[bx]+c", "abcdef" }, | |
| 284 { "(?m)^[ay]*[bx]+c", "aabcdef" }, | |
| 285 { "(?m)def$", "abcdef" }, | |
| 286 { "(?m)def$", "abcdeff" }, | |
| 287 { "(?m)d[ex][fy]$", "abcdef" }, | |
| 288 { "(?m)d[ex][fy]$", "abcdeff" }, | |
| 289 { "(?m)[dz][ex][fy]$", "abcdef" }, | |
| 290 { "(?m)[dz][ex][fy]$", "abcdeff" }, | |
| 291 { "^", "a" }, | |
| 292 { "^^", "a" }, | |
| 293 | |
| 294 // Context. | |
| 295 // The tester checks for a match in the text and | |
| 296 // subpieces of the text with a byte removed on either side. | |
| 297 { "a", "a" }, | |
| 298 { "ab*", "a" }, | |
| 299 { "a\\C*", "a" }, | |
| 300 | |
| 301 // Former bugs. | |
| 302 { "a\\C*|ba\\C", "baba" }, | |
| 303 }; | |
| 304 | |
| 305 TEST(Regexp, SearchTests) { | |
| 306 int failures = 0; | |
| 307 for (int i = 0; i < arraysize(simple_tests); i++) { | |
| 308 const RegexpTest& t = simple_tests[i]; | |
| 309 if (!TestRegexpOnText(t.regexp, t.text)) | |
| 310 failures++; | |
| 311 | |
| 312 #ifdef LOGGING | |
| 313 // Build a dummy ExhaustiveTest call that will trigger just | |
| 314 // this one test, so that we log the test case. | |
| 315 vector<string> atom, alpha, ops; | |
| 316 atom.push_back(StringPiece(t.regexp).as_string()); | |
| 317 alpha.push_back(StringPiece(t.text).as_string()); | |
| 318 ExhaustiveTest(1, 0, atom, ops, 1, alpha, "", ""); | |
| 319 #endif | |
| 320 | |
| 321 } | |
| 322 EXPECT_EQ(failures, 0); | |
| 323 } | |
| 324 | |
| 325 } // namespace re2 | |
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Chromium Code Reviews
Issue 1544433002:
Replace RE2 import with a dependency (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master