[ADT] Introduce StringRef::{starts,ends}_width{,_insensitive}

This patch introduces:

  StringRef::starts_with
  StringRef::starts_with_insensitive
  StringRef::ends_with
  StringRef::ends_with_insensitive

to be more compatible with std::string and std::string_view.

I'm planning to deprecate the existing functions in favor of the new
ones.

Differential Revision: https://reviews.llvm.org/D136030

1 files changed, 21 insertions, 21 deletions

diff --git a/llvm/unittests/ADT/StringRefTest.cpp b/llvm/unittests/ADT/StringRefTest.cpp
index 719f7c6..3827ebe 100644
--- a/llvm/unittests/ADT/StringRefTest.cpp
+++ b/llvm/unittests/ADT/StringRefTest.cpp
@@ -356,20 +356,20 @@ TEST(StringRefTest, Trim) {
 
 TEST(StringRefTest, StartsWith) {
   StringRef Str("hello");
-  EXPECT_TRUE(Str.startswith(""));
-  EXPECT_TRUE(Str.startswith("he"));
-  EXPECT_FALSE(Str.startswith("helloworld"));
-  EXPECT_FALSE(Str.startswith("hi"));
+  EXPECT_TRUE(Str.starts_with(""));
+  EXPECT_TRUE(Str.starts_with("he"));
+  EXPECT_FALSE(Str.starts_with("helloworld"));
+  EXPECT_FALSE(Str.starts_with("hi"));
 }
 
 TEST(StringRefTest, StartsWithInsensitive) {
   StringRef Str("heLLo");
-  EXPECT_TRUE(Str.startswith_insensitive(""));
-  EXPECT_TRUE(Str.startswith_insensitive("he"));
-  EXPECT_TRUE(Str.startswith_insensitive("hell"));
-  EXPECT_TRUE(Str.startswith_insensitive("HELlo"));
-  EXPECT_FALSE(Str.startswith_insensitive("helloworld"));
-  EXPECT_FALSE(Str.startswith_insensitive("hi"));
+  EXPECT_TRUE(Str.starts_with_insensitive(""));
+  EXPECT_TRUE(Str.starts_with_insensitive("he"));
+  EXPECT_TRUE(Str.starts_with_insensitive("hell"));
+  EXPECT_TRUE(Str.starts_with_insensitive("HELlo"));
+  EXPECT_FALSE(Str.starts_with_insensitive("helloworld"));
+  EXPECT_FALSE(Str.starts_with_insensitive("hi"));
 }
 
 TEST(StringRefTest, ConsumeFront) {
@@ -408,21 +408,21 @@ TEST(StringRefTest, ConsumeFrontInsensitive) {
 
 TEST(StringRefTest, EndsWith) {
   StringRef Str("hello");
-  EXPECT_TRUE(Str.endswith(""));
-  EXPECT_TRUE(Str.endswith("lo"));
-  EXPECT_FALSE(Str.endswith("helloworld"));
-  EXPECT_FALSE(Str.endswith("worldhello"));
-  EXPECT_FALSE(Str.endswith("so"));
+  EXPECT_TRUE(Str.ends_with(""));
+  EXPECT_TRUE(Str.ends_with("lo"));
+  EXPECT_FALSE(Str.ends_with("helloworld"));
+  EXPECT_FALSE(Str.ends_with("worldhello"));
+  EXPECT_FALSE(Str.ends_with("so"));
 }
 
 TEST(StringRefTest, EndsWithInsensitive) {
   StringRef Str("heLLo");
-  EXPECT_TRUE(Str.endswith_insensitive(""));
-  EXPECT_TRUE(Str.endswith_insensitive("lo"));
-  EXPECT_TRUE(Str.endswith_insensitive("LO"));
-  EXPECT_TRUE(Str.endswith_insensitive("ELlo"));
-  EXPECT_FALSE(Str.endswith_insensitive("helloworld"));
-  EXPECT_FALSE(Str.endswith_insensitive("hi"));
+  EXPECT_TRUE(Str.ends_with_insensitive(""));
+  EXPECT_TRUE(Str.ends_with_insensitive("lo"));
+  EXPECT_TRUE(Str.ends_with_insensitive("LO"));
+  EXPECT_TRUE(Str.ends_with_insensitive("ELlo"));
+  EXPECT_FALSE(Str.ends_with_insensitive("helloworld"));
+  EXPECT_FALSE(Str.ends_with_insensitive("hi"));
 }
 
 TEST(StringRefTest, ConsumeBack) {