// TODO: Put strings into the resources.
//
public static string GCollection <T>(this FormatStringUtilitiesHandle <ICollection <T> > hnd, int maxCountOfOutputItems, IFormatProvider formatProvider, Func <int, T, IFormatProvider, string> itemFormatter)
{
maxCountOfOutputItems
.Arg(nameof(maxCountOfOutputItems))
.EnsureNotLessThanZero();
//
if (hnd.Object == null)
{
return(FormatStringUtilities.GetNullValueText(formatProvider: formatProvider));
}
else
{
if (itemFormatter == null)
{
itemFormatter = (locIndex, locItem, locFormatProvider) => locItem.FmtStr().G(formatProvider: formatProvider);
}
using (var acquiredBuffer = EonStringBuilderUtilities.AcquireBuffer()) {
var outputBuilder = acquiredBuffer.StringBuilder;
//
var collectionSize = hnd.Object.Count;
outputBuilder.Append($"Коллекция (размер {collectionSize.ToString("d", formatProvider)}):");
if (maxCountOfOutputItems > 0)
{
var itemCounter = 0;
foreach (var item in hnd.Object)
{
checked { itemCounter++; }
outputBuilder.Append(Environment.NewLine);
outputBuilder.Append('\x0009');
outputBuilder.Append(itemCounter.ToString("d", formatProvider));
outputBuilder.Append(")");
outputBuilder
.Append(
value:
itemFormatter(arg1: itemCounter - 1, arg2: item, arg3: formatProvider)
.FmtStr()
.G(formatProvider: formatProvider)
.FmtStr()
.GNLI2());
if (itemCounter == maxCountOfOutputItems)
{
break;
}
}
}
if (collectionSize > maxCountOfOutputItems)
{
outputBuilder.Append(Environment.NewLine);
outputBuilder.Append('\x0009');
outputBuilder.Append('…');
}
//
return(outputBuilder.ToString());
}
}
}
public static string Short(this FormatStringUtilitiesHandle <MetadataPathName> hnd, IFormatProvider formatProvider = default)
{
if (hnd.Object is null)
{
return(FormatStringUtilities.GetNullValueText(formatProvider: formatProvider));
}
else
{
return(hnd.Object.ToString(formatSpecifier: FormatStringUtilities.ShortFormatSpecifier, formatProvider: formatProvider));
}
}
// TODO: Put strings into the resources.
//
public static ArgumentUtilitiesHandle <T> EnsureIsNull <T>(this ArgumentUtilitiesHandle <T> hnd)
where T : class
{
if (!(hnd.Value is null))
{
var exceptionMessage = (hnd.IsProp ? $"Invalid value of property '{hnd.Name}'.{Environment.NewLine}" : string.Empty) + $"Expected value '{FormatStringUtilities.GetNullValueText(formatProvider: null)}'.";
throw
hnd.ExceptionFactory?.Invoke(message: exceptionMessage)
?? new ArgumentOutOfRangeException(message: exceptionMessage, paramName: hnd.Name);
}
public static IFormattable ToFormattableString <T>(this T?value)
where T : struct
=> value.HasValue ? new Globalization.FormattableString("{0}", value) : new Globalization.FormattableString(format : FormatStringUtilities.GetNullValueText(), args : null);
public static IFormattable ToFormattableString <T>(this T value)
where T : class
=> value is null ? new Globalization.FormattableString(format : FormatStringUtilities.GetNullValueText(), args : null) : new Globalization.FormattableString("{0}", value);
public static IFormattable ToFormattableString <T>(this T?value, bool propagateNull)
where T : struct
=> !value.HasValue ? (propagateNull ? null : new Globalization.FormattableString(format : FormatStringUtilities.GetNullValueText(), args : null)) : new Globalization.FormattableString("{0}", value);
public static IFormattable ToFormattableString(this object value)
=> Equals(objA: value, objB: null) ? new Globalization.FormattableString(format: FormatStringUtilities.GetNullValueText(), args: null) : new Globalization.FormattableString("{0}", value);
public static string DateTimeZoneIso8601(this FormatStringUtilitiesHandle <DateTime?> hnd)
=> hnd.Object.HasValue ? hnd.Object.Value.ToString(format: "yyyy-MM-ddTHHmmsszzz", provider: CultureInfo.InvariantCulture).Replace(":", string.Empty) : FormatStringUtilities.GetNullValueText(formatProvider: null);
public static string RoundTrip(this FormatStringUtilitiesHandle <DateTime?> obj, IFormatProvider formatProvider)
=>
obj.Object.HasValue
? obj.Object.Value.ToString(format: "o", provider: formatProvider)
: FormatStringUtilities.GetNullValueText(formatProvider: formatProvider);
public static string GShort(this FormatStringUtilitiesHandle <DateTime?> obj, IFormatProvider formatProvider)
=>
obj.Object.HasValue
? $"{obj.Object.Value.ToString(format: "g", provider: formatProvider)} ({obj.Object.Value.ToString(format: "zzz", provider: formatProvider)})"
: FormatStringUtilities.GetNullValueText(formatProvider: formatProvider);
public static string RoundTrip(this FormatStringUtilitiesHandle <DateTimeOffset?> obj) => obj.Object.HasValue ? obj.Object.Value.ToString(format: "o", formatProvider: null) : FormatStringUtilities.GetNullValueText(formatProvider: null);