protected virtual string FormatGroupVersionPart(ApiVersion apiVersion, string format, IFormatProvider formatProvider)
{
Arg.NotNull(apiVersion, nameof(apiVersion));
Arg.NotNullOrEmpty(format, nameof(format));
Arg.NotNull(formatProvider, nameof(formatProvider));
Contract.Ensures(!IsNullOrEmpty(Contract.Result <string>()));
if (apiVersion.GroupVersion == null)
{
return(Empty);
}
var groupVersion = apiVersion.GroupVersion.Value;
switch (format[0])
{
case 'G':
// G, GG
var text = new StringBuilder(groupVersion.ToString(GroupVersionFormat, formatProvider));
// GG
if (format.Length == 2)
{
AppendStatus(text, apiVersion.Status);
}
return(text.ToString());
case 'M':
var month = Calendar.GetMonth(groupVersion);
switch (format.Length)
{
case 1: // M
return(month.ToString(formatProvider));
case 2: // MM
return(month.ToString("00", formatProvider));
case 3: // MMM
return(DateTimeFormat.GetAbbreviatedMonthName(month));
}
// MMMM*
return(DateTimeFormat.GetMonthName(month));
case 'd':
switch (format.Length)
{
case 1: // d
return(Calendar.GetDayOfMonth(groupVersion).ToString(formatProvider));
case 2: // dd
return(Calendar.GetDayOfMonth(groupVersion).ToString("00", formatProvider));
case 3: // ddd
return(DateTimeFormat.GetAbbreviatedDayName(Calendar.GetDayOfWeek(groupVersion)));
}
// dddd*
return(DateTimeFormat.GetDayName(Calendar.GetDayOfWeek(groupVersion)));
case 'y':
var year = Calendar.GetYear(groupVersion);
switch (format.Length)
{
case 1: // y
return((year % 100).ToString(formatProvider));
case 2: // yy
return((year % 100).ToString("00", formatProvider));
case 3: // yyy
return(year.ToString("000", formatProvider));
}
// yyyy*
return(year.ToString(formatProvider));
}
return(groupVersion.ToString(format, formatProvider));
}
