refactor(lib): Add path separator helpers to PathUtil

Core/Libraries/Include/Lib/PathUtil.h

@@ -55,6 +55,38 @@ inline bool isAbsolutePath(const char* path)
 	return false;
 }
 
+inline char getNativePathSeparator()
+{
+#ifdef _WIN32
+	return '\\';
+#else
+	return '/';
+#endif
+}
+
+inline Bool isAnyPathSeparator(char c)
+{
+	return c == '/' || c == '\\';
+}
+
+inline const char* getLastPathSeparator(const char* path)
+{
+	return maxPtr(strrchr(path, '/'), strrchr(path, '\\'));
+}
+
+inline const wchar_t* getLastPathSeparator(const wchar_t* path)
+{
+	return maxPtr(wcsrchr(path, L'/'), wcsrchr(path, L'\\'));
+}
+
+// Returns the whole path when it contains no separator
+inline const char* getFileName(const char* path)
+{
+	const char* lastSeparator = getLastPathSeparator(path);
+
+	return lastSeparator ? lastSeparator + 1 : path;
+}
+
 inline const char* getExtension(const char* path)
 {
 	const char* lastDot = strrchr(path, '.');
@@ -64,7 +96,7 @@ inline const char* getExtension(const char* path)
 		return nullptr;
 	}
 
-	const char* lastSeparator = maxPtr(strrchr(path, '/'), strrchr(path, '\\'));
+	const char* lastSeparator = getLastPathSeparator(path);
 
 	// Check if the dot is contained in the filename
 	if (lastSeparator && lastDot < lastSeparator)
@@ -84,7 +116,7 @@ inline const wchar_t* getExtension(const wchar_t* path)
 		return nullptr;
 	}
 
-	const wchar_t* lastSeparator = maxPtr(wcsrchr(path, L'/'), wcsrchr(path, L'\\'));
+	const wchar_t* lastSeparator = getLastPathSeparator(path);
 
 	// Check if the dot is contained in the filename
 	if (lastSeparator && lastDot < lastSeparator)