use generator to get xml documents within file instead of regex
use generator to get xml documents within file instead of regex

funginstitute/patentprocessor,nikken1/patentprocessor,yngcan/patentprocessor,nikken1/patentprocessor,yngcan/patentprocessor,funginstitute/patentprocessor,yngcan/patentprocessor,funginstitute/patentprocessor,nikken1/patentprocessor