From e22c17340fee7ba50f60bd4174c2c544e47f364d Mon Sep 17 00:00:00 2001
From: Kawe Mazidjatari <48657826+Mauler125@users.noreply.github.com>
Date: Fri, 24 Jun 2022 12:12:30 +0200
Subject: [PATCH] Add 'UTF8CharLength(..)' to utility.cpp
---
r5dev/public/include/utility.h | 1 +
r5dev/public/utility.cpp | 17 +++++++++++++++++
2 files changed, 18 insertions(+)
diff --git a/r5dev/public/include/utility.h b/r5dev/public/include/utility.h
index 6ba952db..2e9c1559 100644
--- a/r5dev/public/include/utility.h
+++ b/r5dev/public/include/utility.h
@@ -32,6 +32,7 @@ string Base64Decode(const string& svInput);
string UTF8Encode(const wstring& wsvInput);
string UTF8Decode(const string& svInput);
+size_t UTF8CharLength(const uint8_t cInput);
bool StringIsDigit(const string& svInput);
bool CompareStringAlphabetically(const string& svA, const string& svB);
diff --git a/r5dev/public/utility.cpp b/r5dev/public/utility.cpp
index 955fa100..b8b8037b 100644
--- a/r5dev/public/utility.cpp
+++ b/r5dev/public/utility.cpp
@@ -485,6 +485,23 @@ string UTF8Decode(const string& svInput)
return "";
}
+///////////////////////////////////////////////////////////////////////////////
+// For obtaining UTF8 character length.
+size_t UTF8CharLength(const uint8_t cInput)
+{
+ if ((cInput & 0xFE) == 0xFC)
+ return 6;
+ if ((cInput & 0xFC) == 0xF8)
+ return 5;
+ if ((cInput & 0xF8) == 0xF0)
+ return 4;
+ else if ((cInput & 0xF0) == 0xE0)
+ return 3;
+ else if ((cInput & 0xE0) == 0xC0)
+ return 2;
+ return 1;
+}
+
///////////////////////////////////////////////////////////////////////////////
// For checking if a string is a number.
bool StringIsDigit(const string& svInput)