-- file contents chunk by chunk and only the extracted file name is stored
-- within the params table. The callback function will be called subsequently
-- with three arguments:
-- file contents chunk by chunk and only the extracted file name is stored
-- within the params table. The callback function will be called subsequently
-- with three arguments:
-- o String value containing a chunk of the file data
-- o Boolean which indicates wheather the current chunk is the last one (eof)
-- @param src Ltn12 source function
-- o String value containing a chunk of the file data
-- o Boolean which indicates wheather the current chunk is the last one (eof)
-- @param src Ltn12 source function