Introduce Regex::isLiteralERE function.
This will be used to implement an optimisation for literal entries
in special case lists.
Differential Revision: http://llvm-reviews.chandlerc.com/D1278
llvm-svn: 187731
diff --git a/llvm/unittests/Support/RegexTest.cpp b/llvm/unittests/Support/RegexTest.cpp
index 3577d10..02869b3 100644
--- a/llvm/unittests/Support/RegexTest.cpp
+++ b/llvm/unittests/Support/RegexTest.cpp
@@ -112,4 +112,19 @@
EXPECT_EQ(Error, "invalid backreference string '100'");
}
+TEST_F(RegexTest, IsLiteralERE) {
+ EXPECT_TRUE(Regex::isLiteralERE("abc"));
+ EXPECT_FALSE(Regex::isLiteralERE("a(bc)"));
+ EXPECT_FALSE(Regex::isLiteralERE("^abc"));
+ EXPECT_FALSE(Regex::isLiteralERE("abc$"));
+ EXPECT_FALSE(Regex::isLiteralERE("a|bc"));
+ EXPECT_FALSE(Regex::isLiteralERE("abc*"));
+ EXPECT_FALSE(Regex::isLiteralERE("abc+"));
+ EXPECT_FALSE(Regex::isLiteralERE("abc?"));
+ EXPECT_FALSE(Regex::isLiteralERE("abc."));
+ EXPECT_FALSE(Regex::isLiteralERE("a[bc]"));
+ EXPECT_FALSE(Regex::isLiteralERE("abc\\1"));
+ EXPECT_FALSE(Regex::isLiteralERE("abc{1,2}"));
+}
+
}