From 154871834b60a6979bf945610e2032d8b606479e Mon Sep 17 00:00:00 2001
From: Hendiadyoin1 <leon.a@serenityos.org>
Date: Sat, 18 Jun 2022 18:35:36 +0200
Subject: [PATCH] AK: Add a helper to get the last split-group

---
 AK/String.h     | 2 ++
 AK/StringView.h | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/AK/String.h b/AK/String.h
index e245e5ffd41..29682bc5efa 100644
--- a/AK/String.h
+++ b/AK/String.h
@@ -159,6 +159,8 @@ public:
     using SearchDirection = StringUtils::SearchDirection;
     [[nodiscard]] Optional<size_t> find_any_of(StringView needles, SearchDirection direction) const { return StringUtils::find_any_of(*this, needles, direction); }
 
+    [[nodiscard]] StringView find_last_split_view(char separator) const { return view().find_last_split_view(separator); }
+
     [[nodiscard]] String substring(size_t start, size_t length) const;
     [[nodiscard]] String substring(size_t start) const;
     [[nodiscard]] StringView substring_view(size_t start, size_t length) const;
diff --git a/AK/StringView.h b/AK/StringView.h
index 457fefbf634..17f0623f8c8 100644
--- a/AK/StringView.h
+++ b/AK/StringView.h
@@ -127,6 +127,14 @@ public:
 
     [[nodiscard]] Vector<StringView> split_view_if(Function<bool(char)> const& predicate, bool keep_empty = false) const;
 
+    [[nodiscard]] StringView find_last_split_view(char separator) const
+    {
+        auto begin = find_last(separator);
+        if (!begin.has_value())
+            return *this;
+        return substring_view(begin.release_value() + 1);
+    }
+
     template<VoidFunction<StringView> Callback>
     void for_each_split_view(char separator, bool keep_empty, Callback callback) const
     {