エポック秒→日時変換(「スクリプト実行」用スクリプト)

epoch-to-datetime

/*
 * エポック秒→日時変換
 *
 * 「スクリプト実行」用スクリプト
 * http://books.ivory.ne.jp/execscript/
 */

var lines = data.split("\n"),
    line,
    i,
    datetime,
    year, month, day, hour, min, sec,
    outdata = new Array(),
    lpad = function (val, paddedLength) {
        var str = val + "",
            length = str.length,
            i;
        if (length >= paddedLength) {
            return str;
        }
        for (i = length; i < paddedLength; i++) {
            str = '0' + str;
        }
        return str;
    };

for (i = 0; i < lines.length; i++) {
  line = lines[i];
  if (line === "") {
    continue;
  }
  if (! /^[0-9]+$/.test(line)) {
    outdata.push("format error. [" + line + "]");
    continue;
  }
  datetime = new Date(line * 1000);
  year = datetime.getFullYear();
  month = lpad(datetime.getMonth() + 1, 2);
  day = lpad(datetime.getDate(), 2);
  hour = lpad(datetime.getHours(), 2);
  min = lpad(datetime.getMinutes(), 2);
  sec = lpad(datetime.getSeconds(), 2);
  outdata.push(
    year + "-" + month + "-" + day + " "
    + hour + ":" + min + ':' + sec
  );
}

return outdata.join("\n");