A collection of relative URLs and their corresponding absolute ones
Assme the base URL is <http://www.bucknell.edu/home/dir/level3/file.html>, the following is a list of relative URLs and their corresponding absolute one.
http://www.bucknell.edu/home/dir/level3/file.html
======== http://www.bucknell.edu/home/dir/level3/file.html
http://cnn.com:90//testpages/grading.html
======== http://cnn.com:90//testpages/grading.html
http://cnn.com:80//testpages/grading.html
======== http://cnn.com:80//testpages/grading.html
http://cnn.com/level0/./testpages/../level1/lelve2/../../grading.html
======== http://cnn.com/level0/grading.html
../testpages/level2/../level3/grading.html
======== http://www.bucknell.edu/home/dir/testpages/level3/grading.html
../testpages/level2/../level3/.././grading.html#abc
======== http://www.bucknell.edu/home/dir/testpages/grading.html#abc
../grading.html#abc
======== http://www.bucknell.edu/home/dir/grading.html#abc
grading.html#abc
======== http://www.bucknell.edu/home/dir/level3/grading.html
/grading.html#abc
======== http://www.bucknell.edu/grading.html#abc
../testpages/level1/level2/../level3/grading.html
======== http://www.bucknell.edu/home/dir/testpages/level1/level3/grading.html