From 05f641a5a9155855f922743148b3094d1ba6f21c Mon Sep 17 00:00:00 2001
From: MinusGix <MinusGix@gmail.com>
Date: Thu, 12 Sep 2019 06:13:07 -0500
Subject: [PATCH] StringView: Add starts_with method

---
 AK/StringView.cpp | 13 +++++++++++++
 AK/StringView.h   |  2 ++
 2 files changed, 15 insertions(+)

diff --git a/AK/StringView.cpp b/AK/StringView.cpp
index ae4d857c12a..798fd50e3c4 100644
--- a/AK/StringView.cpp
+++ b/AK/StringView.cpp
@@ -40,6 +40,19 @@ Vector<StringView> StringView::split_view(const char separator) const
     return v;
 }
 
+bool StringView::starts_with(const StringView& str) const
+{
+    if (str.is_empty())
+        return true;
+    if (is_empty())
+        return false;
+    if (str.length() > length())
+        return false;
+    if (characters_without_null_termination() == str.characters_without_null_termination())
+        return true;
+    return !memcmp(characters_without_null_termination(), str.characters_without_null_termination(), str.length());
+}
+
 StringView StringView::substring_view(int start, int length) const
 {
     if (!length)
diff --git a/AK/StringView.h b/AK/StringView.h
index 350f5fcd3d4..181e26607f5 100644
--- a/AK/StringView.h
+++ b/AK/StringView.h
@@ -41,6 +41,8 @@ public:
 
     unsigned hash() const;
 
+    bool starts_with(const StringView&) const;
+
     StringView substring_view(int start, int length) const;
     Vector<StringView> split_view(char) const;