It's been a minute since some bad date handling code. Wesley inherited this C# blob which exists to generate timestamped filenames.
// filename format = yyyyMMddhhmmss_<bipad>.dat
char c0 = '0';
this.m_FileName =
DateTime.Now.Year.ToString() +
new String(c0, 2-DateTime.Now.Month.ToString().Length) + DateTime.Now.Month.ToString() +
new String(c0, 2-DateTime.Now.Day.ToString().Length) + DateTime.Now.Day.ToString() +
new String(c0, 2-DateTime.Now.Hour.ToString().Length) + DateTime.Now.Hour.ToString() +
new String(c0, 2-DateTime.Now.Minute.ToString().Length) + DateTime.Now.Minute.ToString() +
new String(c0, 2-DateTime.Now.Second.ToString().Length) + DateTime.Now.Second.ToString() +
"_" + new String(c0, 5-publication.Bipad.ToString().Length) + publication.Bipad.ToString() +
".dat";
The new String(c0, n-myString.Length)
pattern is a perfectly cromulent way to pad a string- that is to say, completely wrong, even though it somehow communicates its intent. Even if you refuse to use a built-in pad method, writing a pad method would be good. Of course, there's no need to do any of this, as C# has date formatters that will handle generating the string for you in a single line.
Still, I have to give this credit- I had to stop and ask myself "what the hell is this even doing?" It was only for a second, but I needed to read the code twice.