XML is just ascii text. It has an indented structure, but since white space has no meaning if not in quoted strings, it is just for "pretty printing".

The metadata return looks like ascii text but the question in my mind is how are lines delimited? Carriage Return ("\r"), Line Feed ("\n") Both ("\r\n")? That is what you need to know to do the high level split e.g. A=metadata.split("\r\n"). Then for each member of the array A you can do B=A[i].split("="). B[0] will be the tag, and B[1] will be the value. Put it all in a loop for(i=......) and it should be easy.

Hope that helps