internal static string strftime(CodeContext /*!*/ context, string format, DateTime dt, int?microseconds)
{
bool postProc;
List <FormatInfo> formatInfoList = PythonFormatToCLIFormat(format, false, out postProc, out _);
StringBuilder res = new StringBuilder();
var lc_info = PythonLocale.GetLocaleInfo(context);
foreach (FormatInfo formatInfo in formatInfoList)
{
switch (formatInfo.Type)
{
case FormatInfoType.UserText: res.Append(formatInfo.Text); break;
case FormatInfoType.SimpleFormat: res.Append(dt.ToString(formatInfo.Text, lc_info.Time.DateTimeFormat)); break;
case FormatInfoType.CustomFormat:
// custom format strings need to be at least 2 characters long
string custom_field_format = formatInfo.Text.Length == 1 ? "%" + formatInfo.Text : formatInfo.Text;
res.Append(dt.ToString(custom_field_format, lc_info.Time.DateTimeFormat));
break;
}
}
if (postProc)
{
res = res.Replace("%f", microseconds != null ? string.Format("{0:D6}", microseconds) : "");
res = res.Replace("%j", dt.DayOfYear.ToString("D03")); // day of the year (001 - 366)
// figure out first day of the year...
DateTime first = new DateTime(dt.Year, 1, 1);
int weekOneSunday = (7 - (int)first.DayOfWeek) % 7;
int dayOffset = (8 - (int)first.DayOfWeek) % 7;
// week of year (sunday first day, 0-53), all days before Sunday are 0
res = res.Replace("%U", (((dt.DayOfYear + 6 - weekOneSunday) / 7)).ToString());
// week number of year (monday first day, 0-53), all days before Monday are 0
res = res.Replace("%W", (((dt.DayOfYear + 6 - dayOffset) / 7)).ToString());
res = res.Replace("%w", ((int)dt.DayOfWeek).ToString());
}
return(res.ToString());
}
public static void PerformModuleReload(PythonContext /*!*/ context, PythonDictionary /*!*/ dict)
{
// we depend on locale, it needs to be initialized
PythonLocale.EnsureLocaleInitialized(context);
}
public static object strptime(CodeContext /*!*/ context, string @string, string format)
{
bool postProc;
FoundDateComponents foundDateComp;
List <FormatInfo> formatInfo = PythonFormatToCLIFormat(format, true, out postProc, out foundDateComp);
DateTime res;
if (postProc)
{
int doyIndex = FindFormat(formatInfo, "\\%j");
int dowMIndex = FindFormat(formatInfo, "\\%W");
int dowSIndex = FindFormat(formatInfo, "\\%U");
if (doyIndex != -1 && dowMIndex == -1 && dowSIndex == -1)
{
res = new DateTime(1900, 1, 1);
res = res.AddDays(Int32.Parse(@string));
}
else if (dowMIndex != -1 && doyIndex == -1 && dowSIndex == -1)
{
res = new DateTime(1900, 1, 1);
res = res.AddDays(Int32.Parse(@string) * 7);
}
else if (dowSIndex != -1 && doyIndex == -1 && dowMIndex == -1)
{
res = new DateTime(1900, 1, 1);
res = res.AddDays(Int32.Parse(@string) * 7);
}
else
{
throw PythonOps.ValueError("cannot parse %j, %W, or %U w/ other values");
}
}
else
{
string[] formats = new string[formatInfo.Count];
for (int i = 0; i < formatInfo.Count; i++)
{
switch (formatInfo[i].Type)
{
case FormatInfoType.UserText: formats[i] = "'" + formatInfo[i].Text + "'"; break;
case FormatInfoType.SimpleFormat: formats[i] = formatInfo[i].Text; break;
case FormatInfoType.CustomFormat:
// include % if we only have one specifier to mark that it's a custom
// specifier
if (formatInfo.Count == 1 && formatInfo[i].Text.Length == 1)
{
formats[i] = "%" + formatInfo[i].Text;
}
else
{
formats[i] = formatInfo[i].Text;
}
break;
}
}
try {
if (!StringUtils.TryParseDateTimeExact(@string,
String.Join("", formats),
PythonLocale.GetLocaleInfo(context).Time.DateTimeFormat,
DateTimeStyles.AllowWhiteSpaces | DateTimeStyles.NoCurrentDateDefault,
out res))
{
// If TryParseExact fails, fall back to DateTime.Parse which does a better job in some cases...
res = DateTime.Parse(@string, PythonLocale.GetLocaleInfo(context).Time.DateTimeFormat);
}
} catch (FormatException e) {
throw PythonOps.ValueError(e.Message + Environment.NewLine + "data=" + @string + ", fmt=" + format + ", to: " + String.Join("", formats));
}
}
if ((foundDateComp & FoundDateComponents.Year) == 0)
{
res = new DateTime(1900, res.Month, res.Day, res.Hour, res.Minute, res.Second, res.Millisecond, res.Kind);
}
return(GetDateTimeTuple(res));
}
public static object strptime(CodeContext /*!*/ context, string @string)
{
return(DateTime.Parse(@string, PythonLocale.GetLocaleInfo(context).Time.DateTimeFormat));
}
// returns object array containing 2 elements: DateTime and DayOfWeek
internal static object[] _strptime(CodeContext /*!*/ context, string @string, string format)
{
bool postProc;
FoundDateComponents foundDateComp;
List <FormatInfo> formatInfo = PythonFormatToCLIFormat(format, true, out postProc, out foundDateComp);
DateTime res;
if (postProc)
{
int doyIndex = FindFormat(formatInfo, "\\%j");
int dowMIndex = FindFormat(formatInfo, "\\%W");
int dowSIndex = FindFormat(formatInfo, "\\%U");
if (doyIndex != -1 && dowMIndex == -1 && dowSIndex == -1)
{
res = new DateTime(1900, 1, 1);
res = res.AddDays(int.Parse(@string));
}
else if (dowMIndex != -1 && doyIndex == -1 && dowSIndex == -1)
{
res = new DateTime(1900, 1, 1);
res = res.AddDays(int.Parse(@string) * 7);
}
else if (dowSIndex != -1 && doyIndex == -1 && dowMIndex == -1)
{
res = new DateTime(1900, 1, 1);
res = res.AddDays(int.Parse(@string) * 7);
}
else
{
throw PythonOps.ValueError("cannot parse %j, %W, or %U w/ other values");
}
}
else
{
var fIdx = -1;
string[] formatParts = new string[formatInfo.Count];
for (int i = 0; i < formatInfo.Count; i++)
{
switch (formatInfo[i].Type)
{
case FormatInfoType.UserText: formatParts[i] = "'" + formatInfo[i].Text + "'"; break;
case FormatInfoType.SimpleFormat: formatParts[i] = formatInfo[i].Text; break;
case FormatInfoType.CustomFormat:
if (formatInfo[i].Text == "f")
{
fIdx = i;
}
// include % if we only have one specifier to mark that it's a custom
// specifier
if (formatInfo.Count == 1 && formatInfo[i].Text.Length == 1)
{
formatParts[i] = "%" + formatInfo[i].Text;
}
else
{
formatParts[i] = formatInfo[i].Text;
}
break;
}
}
var formats =
fIdx == -1 ? new [] { string.Join("", formatParts) } : ExpandMicrosecondFormat(fIdx, formatParts);
try {
if (!StringUtils.TryParseDateTimeExact(@string,
formats,
PythonLocale.GetLocaleInfo(context).Time.DateTimeFormat,
DateTimeStyles.AllowWhiteSpaces | DateTimeStyles.NoCurrentDateDefault,
out res))
{
throw PythonOps.ValueError("time data does not match format" + Environment.NewLine +
"data=" + @string + ", fmt=" + format + ", to: " + formats[0]);
}
} catch (FormatException e) {
throw PythonOps.ValueError(e.Message + Environment.NewLine +
"data=" + @string + ", fmt=" + format + ", to: " + formats[0]);
}
}
DayOfWeek?dayOfWeek = null;
if ((foundDateComp & FoundDateComponents.DayOfWeek) != 0)
{
dayOfWeek = res.DayOfWeek;
}
if ((foundDateComp & FoundDateComponents.Year) == 0)
{
res = new DateTime(1900, res.Month, res.Day, res.Hour, res.Minute, res.Second, res.Millisecond, res.Kind);
}
return(new object[] { res, dayOfWeek });
}
