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Add {start,end}with_lower methods to StringRef.

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startswith_lower is ocassionally useful and I think worth adding.
endwith_lower is added for completeness.

Differential Revision: http://llvm-reviews.chandlerc.com/D2041

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193706 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rui Ueyama
2013-10-30 18:32:26 +00:00
parent 3f04b50686
commit f34c3ca304
3 changed files with 53 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
unittests/ADT/StringRefTest.cpp
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@ -61,6 +61,9 @@ TEST(StringRefTest, StringOps) {
EXPECT_EQ( 0, StringRef("AaB").compare_lower("aab"));
EXPECT_EQ( 1, StringRef("AaB").compare_lower("AAA"));
EXPECT_EQ(-1, StringRef("AaB").compare_lower("aaBb"));
EXPECT_EQ(-1, StringRef("AaB").compare_lower("bb"));
EXPECT_EQ( 1, StringRef("aaBb").compare_lower("AaB"));
EXPECT_EQ( 1, StringRef("bb").compare_lower("AaB"));
EXPECT_EQ( 1, StringRef("AaB").compare_lower("aA"));
EXPECT_EQ( 1, StringRef("\xFF").compare_lower("\1"));
@ -254,6 +257,16 @@ TEST(StringRefTest, StartsWith) {
EXPECT_FALSE(Str.startswith("hi"));
}
TEST(StringRefTest, StartsWithLower) {
StringRef Str("heLLo");
EXPECT_TRUE(Str.startswith_lower(""));
EXPECT_TRUE(Str.startswith_lower("he"));
EXPECT_TRUE(Str.startswith_lower("hell"));
EXPECT_TRUE(Str.startswith_lower("HELlo"));
EXPECT_FALSE(Str.startswith_lower("helloworld"));
EXPECT_FALSE(Str.startswith_lower("hi"));
}
TEST(StringRefTest, EndsWith) {
StringRef Str("hello");
EXPECT_TRUE(Str.endswith(""));
@ -263,6 +276,16 @@ TEST(StringRefTest, EndsWith) {
EXPECT_FALSE(Str.endswith("so"));
}
TEST(StringRefTest, EndsWithLower) {
StringRef Str("heLLo");
EXPECT_TRUE(Str.endswith_lower(""));
EXPECT_TRUE(Str.endswith_lower("lo"));
EXPECT_TRUE(Str.endswith_lower("LO"));
EXPECT_TRUE(Str.endswith_lower("ELlo"));
EXPECT_FALSE(Str.endswith_lower("helloworld"));
EXPECT_FALSE(Str.endswith_lower("hi"));
}
TEST(StringRefTest, Find) {
StringRef Str("hello");
EXPECT_EQ(2U, Str.find('l'));