From 2e77718f07865fb6bfc7b3cd149fa63325fe87b7 Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Sat, 23 Dec 2023 18:43:52 +0200
Subject: [PATCH] BAN: Implement find() for StringView

---
 BAN/BAN/StringView.cpp       | 16 ++++++++++++++++
 BAN/include/BAN/StringView.h |  6 +++++-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/BAN/BAN/StringView.cpp b/BAN/BAN/StringView.cpp
index 3998455d..1aaf0701 100644
--- a/BAN/BAN/StringView.cpp
+++ b/BAN/BAN/StringView.cpp
@@ -145,6 +145,22 @@ namespace BAN
 		return m_data[0];
 	}
 
+	BAN::Optional<StringView::size_type> StringView::find(char ch) const
+	{
+		for (size_type i = 0; i < m_size; i++)
+			if (m_data[i] == ch)
+				return i;
+		return {};
+	}
+
+	BAN::Optional<StringView::size_type> StringView::find(bool(*comp)(char)) const
+	{
+		for (size_type i = 0; i < m_size; i++)
+			if (comp(m_data[i]))
+				return i;
+		return {};
+	}
+
 	bool StringView::contains(char ch) const
 	{
 		for (size_type i = 0; i < m_size; i++)
diff --git a/BAN/include/BAN/StringView.h b/BAN/include/BAN/StringView.h
index d7d275f7..d7c6080a 100644
--- a/BAN/include/BAN/StringView.h
+++ b/BAN/include/BAN/StringView.h
@@ -1,8 +1,9 @@
 #pragma once
 
-#include <BAN/ForwardList.h>
 #include <BAN/Formatter.h>
+#include <BAN/ForwardList.h>
 #include <BAN/Iterators.h>
+#include <BAN/Optional.h>
 
 namespace BAN
 {
@@ -35,6 +36,9 @@ namespace BAN
 		char back() const;
 		char front() const;
 
+		BAN::Optional<size_type> find(char) const;
+		BAN::Optional<size_type> find(bool(*comp)(char)) const;
+
 		bool contains(char) const;
 		size_type count(char) const;