if re.match(hc.answer_header, [[Content-Range: bytes (\d+-\d+)\/\d+]]) then
local cRange = re.find(hc.answer_header, [[Content-Range: bytes (\d+-\d+)\/(\d+)]], 1)
local cLen = re.find(hc.answer_header, [[Content-Range: bytes (\d+-\d+)\/(\d+)]], 2)
if cRange then
local url, ext = re.find(hc.url, [[(.*?)(\.dat)$]], 1), re.find(hc.url, [[(.*?)(\.dat)$]], 2)
local filename = hc.prepare_url(url..', range='..cRange..', clen='..cLen..ext)
filename = hc.cache_path..filename
hc.preform_cache_file_name(filename)
hc.action = 'save'
end
end