internal static bool TryParseExact(String s, String format, DateTimeFormatInfo dtfi, DateTimeStyles style, out DateTime result) {
result = DateTime.MinValue;
DateTimeResult resultData = new DateTimeResult(); // The buffer to store the parsing result.
resultData.Init();
if (TryParseExact(s, format, dtfi, style, ref resultData)) {
result = resultData.parsedDate;
return true;
}
return false;
}
internal static DateTime ParseExact(String s, String format, DateTimeFormatInfo dtfi, DateTimeStyles style) {
DateTimeResult result = new DateTimeResult(); // The buffer to store the parsing result.
result.Init();
if (TryParseExact(s, format, dtfi, style, ref result)) {
return result.parsedDate;
}
else {
throw GetDateTimeParseException(ref result);
}
}
internal static DateTime ParseExact(String s, String format, DateTimeFormatInfo dtfi, DateTimeStyles style, out TimeSpan offset) {
DateTimeResult result = new DateTimeResult(); // The buffer to store the parsing result.
offset = TimeSpan.Zero;
result.Init();
result.flags |= ParseFlags.CaptureOffset;
if (TryParseExact(s, format, dtfi, style, ref result)) {
offset = result.timeZoneOffset;
return result.parsedDate;
}
else {
throw GetDateTimeParseException(ref result);
}
}
internal static bool TryParseExact(String s, String format, DateTimeFormatInfo dtfi, DateTimeStyles style, out DateTime result, out TimeSpan offset) {
result = DateTime.MinValue;
offset = TimeSpan.Zero;
DateTimeResult resultData = new DateTimeResult(); // The buffer to store the parsing result.
resultData.Init();
resultData.flags |= ParseFlags.CaptureOffset;
if (TryParseExact(s, format, dtfi, style, ref resultData)) {
result = resultData.parsedDate;
offset = resultData.timeZoneOffset;
return true;
}
return false;
}
internal static bool TryParseExact(String s, String format, IFormatProvider provider, DateTimeStyles style, out DateTime result)
{
DateTimeFormatInfo dtfi = provider == null ? DateTimeFormatInfo.CurrentInfo : DateTimeFormatInfo.GetInstance(provider);
result = DateTime.MinValue;
DateTimeResult resultData = new DateTimeResult(); // The buffer to store the parsing result.
resultData.Init();
if (TryParseExact(s, format, dtfi, style, ref resultData))
{
result = resultData.parsedDate;
return true;
}
return false;
}
internal static DateTime ParseExact(String s, String format, IFormatProvider provider, DateTimeStyles style)
{
DateTimeFormatInfo dtfi = provider == null ? DateTimeFormatInfo.CurrentInfo : DateTimeFormatInfo.GetInstance(provider);
DateTimeResult result = new DateTimeResult(); // The buffer to store the parsing result.
result.Init();
if (TryParseExact(s, format, dtfi, style, ref result))
{
return result.parsedDate;
}
else
{
throw GetDateTimeParseException(ref result);
}
}
internal static bool TryParse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles, out DateTime result, out TimeSpan offset) {
result = DateTime.MinValue;
offset = TimeSpan.Zero;
DateTimeResult parseResult = new DateTimeResult(); // The buffer to store the parsing result.
parseResult.Init();
parseResult.flags |= ParseFlags.CaptureOffset;
if (TryParse(s, dtfi, styles, ref parseResult)) {
result = parseResult.parsedDate;
offset = parseResult.timeZoneOffset;
return true;
}
return false;
}
internal static bool TryParseExactMultiple(String s, String[] formats,
DateTimeFormatInfo dtfi, DateTimeStyles style, ref DateTimeResult result) {
if (s == null) {
result.SetFailure(ParseFailureKind.ArgumentNull, "ArgumentNull_String", null, "s");
return false;
}
if (formats == null) {
result.SetFailure(ParseFailureKind.ArgumentNull, "ArgumentNull_String", null, "formats");
return false;
}
if (s.Length == 0) {
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
if (formats.Length == 0) {
result.SetFailure(ParseFailureKind.Format, "Format_BadFormatSpecifier", null);
return false;
}
Contract.Assert(dtfi != null, "dtfi == null");
//
// Do a loop through the provided formats and see if we can parse succesfully in
// one of the formats.
//
for (int i = 0; i < formats.Length; i++) {
if (formats[i] == null || formats[i].Length == 0) {
result.SetFailure(ParseFailureKind.Format, "Format_BadFormatSpecifier", null);
return false;
}
// Create a new result each time to ensure the runs are independent. Carry through
// flags from the caller and return the result.
DateTimeResult innerResult = new DateTimeResult(); // The buffer to store the parsing result.
innerResult.Init();
innerResult.flags = result.flags;
if (TryParseExact(s, formats[i], dtfi, style, ref innerResult)) {
result.parsedDate = innerResult.parsedDate;
result.timeZoneOffset = innerResult.timeZoneOffset;
return (true);
}
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return (false);
}
internal static bool TryParse(String s, IFormatProvider provider, DateTimeStyles styles, out DateTime result)
{
DateTimeFormatInfo dtfi = provider == null ? DateTimeFormatInfo.CurrentInfo : DateTimeFormatInfo.GetInstance(provider);
result = DateTime.MinValue;
DateTimeResult parseResult = new DateTimeResult(); // The buffer to store the parsing result.
parseResult.Init();
if (TryParse(s, dtfi, styles, ref parseResult))
{
result = parseResult.parsedDate;
return true;
}
return false;
}
internal static DateTime Parse(String s, IFormatProvider provider, DateTimeStyles styles, out TimeSpan offset)
{
DateTimeFormatInfo dtfi = provider == null ? DateTimeFormatInfo.CurrentInfo : DateTimeFormatInfo.GetInstance(provider);
DateTimeResult result = new DateTimeResult(); // The buffer to store the parsing result.
result.Init();
result.flags |= ParseFlags.CaptureOffset;
if (TryParse(s, dtfi, styles, ref result))
{
offset = result.timeZoneOffset;
return result.parsedDate;
}
else
{
throw GetDateTimeParseException(ref result);
}
}
internal static bool TryParseExactMultiple(String s, String[] formats,
IFormatProvider provider, DateTimeStyles style, out DateTime result, out TimeSpan offset)
{
DateTimeFormatInfo dtfi = provider == null ? DateTimeFormatInfo.CurrentInfo : DateTimeFormatInfo.GetInstance(provider);
result = DateTime.MinValue;
offset = TimeSpan.Zero;
DateTimeResult resultData = new DateTimeResult(); // The buffer to store the parsing result.
resultData.Init();
resultData.flags |= ParseFlags.CaptureOffset;
if (TryParseExactMultiple(s, formats, dtfi, style, ref resultData))
{
result = resultData.parsedDate;
offset = resultData.timeZoneOffset;
return true;
}
return false;
}
internal static bool TryParseExactMultiple(string s, string[] formats, DateTimeFormatInfo dtfi, DateTimeStyles style, out DateTime result, out TimeSpan offset)
{
result = DateTime.MinValue;
offset = TimeSpan.Zero;
DateTimeResult result2 = new DateTimeResult();
result2.Init();
result2.flags |= ParseFlags.CaptureOffset;
if (TryParseExactMultiple(s, formats, dtfi, style, ref result2))
{
result = result2.parsedDate;
offset = result2.timeZoneOffset;
return true;
}
return false;
}
internal static bool TryParseExactMultiple(string s, string[] formats, DateTimeFormatInfo dtfi, DateTimeStyles style, ref DateTimeResult result)
{
if (s == null)
{
result.SetFailure(ParseFailureKind.ArgumentNull, "ArgumentNull_String", null, "s");
return false;
}
if (formats == null)
{
result.SetFailure(ParseFailureKind.ArgumentNull, "ArgumentNull_String", null, "formats");
return false;
}
if (s.Length == 0)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
if (formats.Length == 0)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadFormatSpecifier", null);
return false;
}
for (int i = 0; i < formats.Length; i++)
{
if ((formats[i] == null) || (formats[i].Length == 0))
{
result.SetFailure(ParseFailureKind.Format, "Format_BadFormatSpecifier", null);
return false;
}
DateTimeResult result2 = new DateTimeResult();
result2.Init();
result2.flags = result.flags;
if (TryParseExact(s, formats[i], dtfi, style, ref result2))
{
result.parsedDate = result2.parsedDate;
result.timeZoneOffset = result2.timeZoneOffset;
return true;
}
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
internal static bool TryParseExactMultiple(string s, string[] formats, DateTimeFormatInfo dtfi, DateTimeStyles style, out DateTime result)
{
result = DateTime.MinValue;
DateTimeResult result2 = new DateTimeResult();
result2.Init();
if (TryParseExactMultiple(s, formats, dtfi, style, ref result2))
{
result = result2.parsedDate;
return true;
}
return false;
}
internal static DateTime ParseExactMultiple(string s, string[] formats, DateTimeFormatInfo dtfi, DateTimeStyles style, out TimeSpan offset)
{
DateTimeResult result = new DateTimeResult();
offset = TimeSpan.Zero;
result.Init();
result.flags |= ParseFlags.CaptureOffset;
if (!TryParseExactMultiple(s, formats, dtfi, style, ref result))
{
throw GetDateTimeParseException(ref result);
}
offset = result.timeZoneOffset;
return result.parsedDate;
}
internal static DateTime ParseExactMultiple(string s, string[] formats, DateTimeFormatInfo dtfi, DateTimeStyles style)
{
DateTimeResult result = new DateTimeResult();
result.Init();
if (!TryParseExactMultiple(s, formats, dtfi, style, ref result))
{
throw GetDateTimeParseException(ref result);
}
return result.parsedDate;
}
