jisx0301()
Returns a string in a JIS X 0301 format.
Date.new(2001,2,3).jisx0301 #=> "H13.02.03"
static VALUE d_lite_jisx0301(VALUE self) { VALUE s; get_d1(self); s = jisx0301_date(m_real_local_jd(dat), m_real_year(dat)); return strftimev(RSTRING_PTR(s), self, set_tmx); }