Downloading data from website - regex

Question

I use the following code for downloading two files in a folder from a website.
I want to download some files that contain "MOD09GA.A2008077.h22v05.005.2008080122814.hdf" and "MOD09GA.A2008077.h23v05.005.2008080122921.hdf" in the page. But I don't know how to select these files. The code below download all the files, but I only need two of them.
Does anyone have any ideas?
URL = 'http://e4ftl01.cr.usgs.gov/MOLT/MOD09GA.005/2008.03.17/';
% Local path on your machine
localPath = 'E:/myfolder/';
% Read html contents and parse file names with ending *.hdf
urlContents = urlread(URL);
ret = regexp(urlContents, '"\S+.hdf.xml"', 'match');
% Loop over all files and download them
for k=1:length(ret)
filename = ret{k}(2:end-1);
filepathOnline = strcat(URL, filename);
filepathLocal = fullfile(localPath, filename);
urlwrite(filepathOnline, filepathLocal);
end

Answer 1

Try the regexp with tokens instead:
localPath = 'E:/myfolder/';
urlContents = 'aaaa "MOD09GA.A2008077.h22v05.005.2008080122814.hdf.xml" and "MOD09GA.A2008077.h23v05.005.2008080122921.hdf.xml" aaaaa';
ret = regexp(urlContents , '"(\S+)(?:\.\d+){2}(\.hdf\.xml)"', 'tokens');
%// Loop over each file name
for k=1:length(ret)
filename = [ret{k}{:}];
filepathLocal = fullfile(localPath, filename)
end