From cf0899f44094e4481a1ac207af9e94239647fb81 Mon Sep 17 00:00:00 2001
From: Timothy Flynn <trflynn89@pm.me>
Date: Sat, 14 Jan 2023 10:17:32 -0500
Subject: [PATCH] AK: Add String::contains

---
 AK/String.cpp | 10 ++++++++++
 AK/String.h   |  4 ++++
 2 files changed, 14 insertions(+)

diff --git a/AK/String.cpp b/AK/String.cpp
index ed0f8d4bb67..88a3c5d4fbd 100644
--- a/AK/String.cpp
+++ b/AK/String.cpp
@@ -339,6 +339,16 @@ ErrorOr<String> String::reverse() const
     return builder.to_string();
 }
 
+bool String::contains(StringView needle, CaseSensitivity case_sensitivity) const
+{
+    return StringUtils::contains(bytes_as_string_view(), needle, case_sensitivity);
+}
+
+bool String::contains(char needle, CaseSensitivity case_sensitivity) const
+{
+    return contains(StringView { &needle, 1 }, case_sensitivity);
+}
+
 bool String::is_short_string() const
 {
     return has_short_string_bit(reinterpret_cast<uintptr_t>(m_data));
diff --git a/AK/String.h b/AK/String.h
index 54b3996e311..ce4de09bde6 100644
--- a/AK/String.h
+++ b/AK/String.h
@@ -12,6 +12,7 @@
 #include <AK/Optional.h>
 #include <AK/RefCounted.h>
 #include <AK/Span.h>
+#include <AK/StringUtils.h>
 #include <AK/StringView.h>
 #include <AK/Traits.h>
 #include <AK/Types.h>
@@ -92,6 +93,9 @@ public:
         return (this->operator==(forward<Ts>(strings)) || ...);
     }
 
+    [[nodiscard]] bool contains(StringView, CaseSensitivity = CaseSensitivity::CaseSensitive) const;
+    [[nodiscard]] bool contains(char, CaseSensitivity = CaseSensitivity::CaseSensitive) const;
+
     [[nodiscard]] u32 hash() const;
 
     template<Arithmetic T>