unescape method

ParamString unescape()

Implementation

ParamString unescape(){
	replace( "&lt;"  , "<"  );
	replace( "&gt;"  , ">"  );
	replace( "&quot;", "\"" );
	replace( "&nbsp;", " "  );
	replace( "&amp;" , "&"  );	// 重要：一番最後に行うこと！
	return this;
}