private void GetSinglePartSuggestions(DatePartParser part,
List <Suggestion> newSuggestions,
DateTime currentDate)
{
// Check Possible Day (Of Month)
if ((part.DateType & (DateTypeFlags.PossibleDayOfMonth | DateTypeFlags.DefiniteDayOfMonth)) > 0)
{
// Possible or definite day of month
var suggestedDate = currentDate.SetDayOfMonth(part.DayOfMonthValue);
var probability = part.DayOfMonthProbability;
if (currentDate != suggestedDate)
{
var s
= new Suggestion
(
"",
suggestedDate.ToShortDateString(),
"",
probability,
suggestedDate
);
newSuggestions.Add(s);
}
}
// Check Day of Week
if ((part.DateType & DateTypeFlags.DefiniteDayOfWeek) > 0)
{
// Definite day of week
// Next Day
var suggestedDate = currentDate.NextDayOfWeek(part.DayOfWeekValue);
var probability = 70;
if (currentDate != suggestedDate)
{
var s
= new Suggestion
(
"",
suggestedDate.ToShortDateString(),
"",
probability,
suggestedDate
);
newSuggestions.Add(s);
}
// Previous Day
suggestedDate = currentDate.PreviousDayOfWeek(part.DayOfWeekValue);
probability = 40;
if (currentDate != suggestedDate)
{
var s
= new Suggestion
(
"",
suggestedDate.ToShortDateString(),
"",
probability,
suggestedDate
);
newSuggestions.Add(s);
}
}
// Check Possible Month
if ((part.DateType & (DateTypeFlags.PossibleMonth | DateTypeFlags.DefinitieMonth)) > 0)
{
// Possible or definite month
var suggestedDate = currentDate.SetMonth(part.MonthValue);
var probability = part.MonthProbability;
if (currentDate != suggestedDate)
{
var s
= new Suggestion
(
"",
suggestedDate.ToShortDateString(),
"",
probability,
suggestedDate
);
newSuggestions.Add(s);
}
}
// Check Possible Year
if ((part.DateType & (DateTypeFlags.PossibleYear | DateTypeFlags.DefiniteYear)) > 0)
{
// Possible or definite year
var suggestedDate = currentDate.SetYear(part.YearValue);
var probability = part.YearProbability;
if (currentDate != suggestedDate)
{
var s
= new Suggestion
(
"",
suggestedDate.ToShortDateString(),
"",
probability,
suggestedDate
);
newSuggestions.Add(s);
}
}
}
public IEnumerable <Suggestion> GetFirstSuggestion(string searchText, object currentValue)
{
var currentDate = currentValue is DateTime ? (DateTime)currentValue : DateTime.Now;
var newSuggestions = new List <Suggestion>();
// Only attempt to work out a relative time if the search string start with + or -
if (searchText.Length < 2)
{
return(newSuggestions);
}
var firstCharacter = searchText[0];
if (firstCharacter != '-' && firstCharacter != '+')
{
return(newSuggestions);
}
// Find the parts in the time.
var hours = 0;
var minutes = 0;
var matchFound = false;
int val;
var relativeTimeText = searchText.ToLower().Trim(firstCharacter);
// Recognise parts with format like nnh nnm where nn is a number
var matches = dmyRegex.Matches(relativeTimeText);
foreach (Match m in matches)
{
if (int.TryParse(m.Groups[1].Value, out val) &&
val != 0)
{
switch (m.Groups[2].Value)
{
case "h":
hours = val;
break;
case "m":
minutes = val;
break;
}
matchFound = true;
}
}
if (!matchFound)
{
// Try a non specific match (assume minutes)
var m = simpleRegex.Match(relativeTimeText);
if (int.TryParse(m.Groups[0].Value, out val) &&
val != 0)
{
minutes = val;
matchFound = true;
}
}
if (matchFound)
{
if (firstCharacter == '-')
{
hours = -hours;
minutes = -minutes;
}
var suggestedTime
= ((DateTime)currentValue)
.AddHours(hours)
.AddMinutes(minutes);
var s
= new Suggestion
(
"",
suggestedTime.ToShortTimeString(),
"",
100,
suggestedTime
);
newSuggestions.Add(s);
}
return(newSuggestions);
}
private void GetTwoPartSuggestions(DatePartParser firstPart,
DatePartParser secondPart,
List <Suggestion> newSuggestions,
DateTime currentDate)
{
// Check Possible Day (Of Month) and Month
if ((firstPart.DateType & (DateTypeFlags.PossibleDayOfMonth | DateTypeFlags.DefiniteDayOfMonth)) > 0 &&
(secondPart.DateType & (DateTypeFlags.PossibleMonth | DateTypeFlags.DefinitieMonth)) > 0)
{
var suggestedDate = currentDate.SetDayOfMonth(firstPart.DayOfMonthValue).SetMonth(secondPart.MonthValue);
var probability = (firstPart.DayOfMonthProbability + secondPart.MonthProbability) / 2;
if (currentDate != suggestedDate)
{
var s
= new Suggestion
(
"",
suggestedDate.ToShortDateString(),
"",
probability,
suggestedDate
);
newSuggestions.Add(s);
}
}
// Check Possible Month and Day of Month
if ((secondPart.DateType & (DateTypeFlags.PossibleDayOfMonth | DateTypeFlags.DefiniteDayOfMonth)) > 0 &&
(firstPart.DateType & (DateTypeFlags.PossibleMonth | DateTypeFlags.DefinitieMonth)) > 0)
{
var suggestedDate = currentDate.SetDayOfMonth(secondPart.DayOfMonthValue).SetMonth(firstPart.MonthValue);
var probability = (secondPart.DayOfMonthProbability + firstPart.MonthProbability) / 2;
if (currentDate != suggestedDate)
{
var s
= new Suggestion
(
"",
suggestedDate.ToShortDateString(),
"",
probability,
suggestedDate
);
newSuggestions.Add(s);
}
}
// Check Day of Week and Day (Of Month)
if ((firstPart.DateType & DateTypeFlags.DefiniteDayOfWeek) > 0 &&
(secondPart.DateType & (DateTypeFlags.PossibleDayOfMonth | DateTypeFlags.DefiniteDayOfMonth)) > 0)
{
var suggestedDate = currentDate.NextDate(firstPart.DayOfWeekValue, secondPart.DayOfMonthValue);
var probability = 70;
if (currentDate != suggestedDate)
{
var s
= new Suggestion
(
"",
suggestedDate.ToShortDateString(),
"",
probability,
suggestedDate
);
newSuggestions.Add(s);
}
suggestedDate = currentDate.PreviousDate(firstPart.DayOfWeekValue, secondPart.DayOfMonthValue);
probability = 60;
if (currentDate != suggestedDate)
{
var s
= new Suggestion
(
"",
suggestedDate.ToShortDateString(),
"",
probability,
suggestedDate
);
newSuggestions.Add(s);
}
}
// Check Possible Month and year
if ((firstPart.DateType & (DateTypeFlags.PossibleMonth | DateTypeFlags.DefinitieMonth)) > 0 &&
(secondPart.DateType & (DateTypeFlags.PossibleYear | DateTypeFlags.DefiniteYear)) > 0)
{
var suggestedDate = currentDate.SetMonth(firstPart.MonthValue).SetYear(secondPart.YearValue);
var probability = (firstPart.MonthProbability + secondPart.YearProbability) / 2;
if (currentDate != suggestedDate)
{
var s
= new Suggestion
(
"",
suggestedDate.ToShortDateString(),
"",
probability,
suggestedDate
);
newSuggestions.Add(s);
}
}
}
