Core/String: Add Format static method

include/Nazara/Core/String.hpp

@@ -11,6 +11,7 @@
 #include <Nazara/Core/Endianness.hpp>
 #include <Nazara/Core/SerializationContext.hpp>
 #include <atomic>
+#include <cstdarg>
 #include <iosfwd>
 #include <memory>
 #include <string>
@@ -239,6 +240,8 @@ namespace Nz
 
 			static String Boolean(bool boolean);
 			static int Compare(const String& first, const String& second);
+			static inline String Format(const char* format, ...);
+			static String FormatVA(const char* format, va_list arg);
 			static String Number(float number);
 			static String Number(double number);
 			static String Number(long double number);

include/Nazara/Core/String.inl

@@ -19,6 +19,23 @@ namespace Nz
 	{
 	}
 
+	/*!
+	* \brief Build a string using a format and returns it
+	* \return Formatted string
+	*
+	* \param format String format
+	* \param ... Format arguments
+	*/
+	String String::Format(const char* format, ...)
+	{
+		va_list args;
+		va_start(args, format);
+		String result = FormatVA(format, args);
+		va_end(args);
+
+		return result;
+	}
+
 	/*!
 	* \brief Releases the content to the string
 	*/

src/Nazara/Core/String.cpp

@@ -5079,7 +5079,7 @@ namespace Nz
 	* \return The expected result
 	*
 	* \param first First string to use for comparison
-	* \parma second Second string to use for comparison
+	* \param second Second string to use for comparison
 	*/
 
 	int String::Compare(const String& first, const String& second)
@@ -5093,6 +5093,23 @@ namespace Nz
 		return std::strcmp(first.GetConstBuffer(), second.GetConstBuffer());
 	}
 
+	/*!
+	* \brief Build a string using a format and returns it
+	* \return Formatted string
+	*
+	* \param format String format
+	* \param args Format arguments
+	*/
+	String String::FormatVA(const char* format, va_list args)
+	{
+		std::size_t length = std::vsnprintf(nullptr, 0, format, args);
+
+		auto str = std::make_shared<SharedString>(length);
+		std::vsnprintf(str->string.get(), length + 1, format, args);
+
+		return String(std::move(str));
+	}
+
 	/*!
 	* \brief Converts the number to string
 	* \return String representation of the number