This program shows a paper's metadata in the form of SIST-02. This requires NAID, the ID for a paper. NAID is included in the URL.
http://ci.nii.ac.jp/naid/[Here is the NAID]
$ ruby cinii_json.rb [NAID]
When the number of command-line argument is not one, the program does nothing.
- implement the function which can get NAID from command-line argument
- fail to get the year of publishing when the date is invalid (e.g. 2013-05-00)