public static string ToStringISO8601(
this DateTimeUtcAndLocal @this,
UtcAndLocalTemplate template = DefaultUtcAndLocalTemplate,
ISO8601Template dateTemplate = DefaultISO8601Template,
ISO8601Format format = DefaultISO8601Format)
{
var utcString = template != UtcAndLocalTemplate.Local ? @this.Utc.ToStringISO8601(dateTemplate, format) : null;
var localString = template != UtcAndLocalTemplate.Utc ? @this.Local.ToStringISO8601(dateTemplate, format) : null;
string twoDatesFormatString;
switch (format)
{
case ISO8601Format.Pretty:
twoDatesFormatString = "{0} / {1}";
break;
case ISO8601Format.Formal:
twoDatesFormatString = "{0} {1}";
break;
case ISO8601Format.FileSystemPathFriendly:
twoDatesFormatString = "{0}--{1}";
break;
default:
throw new ArgumentException("Illegal ISO8601Format");
}
switch (template)
{
case UtcAndLocalTemplate.Utc:
return(utcString);
case UtcAndLocalTemplate.Local:
return(localString);
case UtcAndLocalTemplate.UtcAndLocal:
return(string.Format(twoDatesFormatString, utcString, localString));
case UtcAndLocalTemplate.LocalAndUtc:
return(string.Format(twoDatesFormatString, localString, utcString));
default:
throw new ArgumentException("Illegal UtcAndLocalTemplate");
}
}
public static string ToStringISO8601(this DateTime @this, ISO8601Template template = DefaultISO8601Template, ISO8601Format format = DefaultISO8601Format)
{
var suffix = @this.Kind == DateTimeKind.Utc ? "Z" : "";
var dateFormatString = "yyyy-MM-dd";
var timeFormatString = format != ISO8601Format.FileSystemPathFriendly ? "HH\\:mm\\:ss" : "HH\\_mm\\_ss";
var dateTimeSeparator = format == ISO8601Format.Pretty ? ' ' : 'T';
switch (template)
{
case ISO8601Template.DateOnly:
return(@this.ToString(dateFormatString + suffix));
case ISO8601Template.TimeOnly:
return(@this.ToString(timeFormatString + suffix));
case ISO8601Template.DateTime:
return(@this.ToString(string.Format("{0}{1}{2}{3}", dateFormatString, dateTimeSeparator, timeFormatString, suffix)));
default:
throw new ArgumentException("Illegal ISO8601Template");
}
}