From 6952f2295a4ba95f75fe10f2ed8c23ed304dd59a Mon Sep 17 00:00:00 2001
From: Mattes D <github@xoft.cz>
Date: Mon, 6 Apr 2015 22:00:54 +0200
Subject: Added cFile:ChangeFileExt() function.

---
 src/OSSupport/File.cpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'src/OSSupport/File.cpp')

diff --git a/src/OSSupport/File.cpp b/src/OSSupport/File.cpp
index 8957dfaef..7ad1b3f81 100644
--- a/src/OSSupport/File.cpp
+++ b/src/OSSupport/File.cpp
@@ -453,6 +453,29 @@ AString cFile::ReadWholeFile(const AString & a_FileName)
 
 
 
+AString cFile::ChangeFileExt(const AString & a_FileName, const AString & a_NewExt)
+{
+	auto res = a_FileName;
+	auto DotPos = res.rfind('.');
+	if (DotPos == AString::npos)
+	{
+		// No extension, just append it:
+		res.push_back('.');
+		res.append(a_NewExt);
+	}
+	else
+	{
+		// Replace existing extension:
+		res.erase(DotPos + 1, AString::npos);
+		res.append(a_NewExt);
+	}
+	return res;
+}
+
+
+
+
+
 int cFile::Printf(const char * a_Fmt, ...)
 {
 	AString buf;
-- 
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