Here in first step, Algorithm reads

Here in first step, Algorithm reads the URL from the source files (Pure XML, Code based XML, HTML
embedded XML and RSS XML) line by line and fetch(s) the URL(s). The fetched URL will be tested with
destination file for redundancy based on sequential search. If the fetched URL is not present in destination file, then
it will be appended otherwise it will not be appended. This process will be continued until the last URL in the source
file. Finally the unique XML URLs of each category is obtained.