A method for transforming data includes creating an array and initializing a value in each array element of the array. The method also includes storing data in the array from data components in a source file by, for each data component in the source file, detecting a beginning of the data component and determining whether an array element corresponding to the detected data component is included in the array. If an array element corresponding to a particular data component is included in the array, a value of the corresponding array element is set based on data in the detected data component. If an array element corresponding to that data component is not included in the array, the detected data component is discarded. Additionally, the method includes writing at least a portion of the data stored in the array to a target file.