diff options
Diffstat (limited to 'unittests/Support/RegexTest.cpp')
| -rw-r--r-- | unittests/Support/RegexTest.cpp | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/unittests/Support/RegexTest.cpp b/unittests/Support/RegexTest.cpp index 65b66c3eee..38d95955f8 100644 --- a/unittests/Support/RegexTest.cpp +++ b/unittests/Support/RegexTest.cpp @@ -51,7 +51,6 @@ TEST_F(RegexTest, Basics) { EXPECT_EQ(1u, Matches.size()); EXPECT_EQ(String, Matches[0].str()); - std::string NulPattern="X[0-9]+X([a-f])?:([0-9]+)"; String="YX99a:513b"; NulPattern[7] = '\0'; @@ -62,6 +61,28 @@ TEST_F(RegexTest, Basics) { EXPECT_TRUE(r5.match(String)); } +TEST_F(RegexTest, Backreferences) { + Regex r1("([a-z]+)_\\1"); + SmallVector<StringRef, 4> Matches; + EXPECT_TRUE(r1.match("abc_abc", &Matches)); + EXPECT_EQ(2u, Matches.size()); + EXPECT_FALSE(r1.match("abc_ab", &Matches)); + + Regex r2("a([0-9])b\\1c\\1"); + EXPECT_TRUE(r2.match("a4b4c4", &Matches)); + EXPECT_EQ(2u, Matches.size()); + EXPECT_EQ("4", Matches[1].str()); + EXPECT_FALSE(r2.match("a2b2c3")); + + Regex r3("a([0-9])([a-z])b\\1\\2"); + EXPECT_TRUE(r3.match("a6zb6z", &Matches)); + EXPECT_EQ(3u, Matches.size()); + EXPECT_EQ("6", Matches[1].str()); + EXPECT_EQ("z", Matches[2].str()); + EXPECT_FALSE(r3.match("a6zb6y")); + EXPECT_FALSE(r3.match("a6zb7z")); +} + TEST_F(RegexTest, Substitution) { std::string Error; |