Strings - Character mapping, conversion to upper/lowercase

src/Strings.cc

@@ -1447,6 +1447,33 @@ T_String T_String::trim( ) const noexcept
 
 /*----------------------------------------------------------------------------*/
 
+T_String T_String::mapped( T_Character::F_Map f ) const noexcept
+{
+	T_StringIterator it{ *this };
+	T_StringBuilder sb;
+	while ( !it.atEnd( ) ) {
+		sb << f( it );
+		it.next( );
+	}
+	return std::move( sb );
+}
+
+T_String T_String::toUpper( ) const noexcept
+{
+	return mapped( [](auto c){
+			return c.toUpper( );
+		} );
+}
+
+T_String T_String::toLower( ) const noexcept
+{
+	return mapped( [](auto c){
+			return c.toLower( );
+		} );
+}
+
+/*----------------------------------------------------------------------------*/
+
 int32_t T_String::compare( T_String const& other ) const
 {
 	if ( this == &other || data_ == other.data_ ) {