public static bool TryMatchYesterday(ArgumentToken token, DateTime currentDate, string[] inputTokens, int startIdx, out TokenMatchResult result)
{
//Yesterday
if (inputTokens[startIdx].Equals("yesterday", StringComparison.CurrentCultureIgnoreCase))
{
DateTime output = currentDate.Subtract(new TimeSpan(1, 0, 0, 0));
result = new TokenMatchResult(token, inputTokens[startIdx], inputTokens[startIdx], MatchOutcome.Full, inputTokens[startIdx].Length, 1);
result.SetArgValue(token, output);
return(true);
}
result = TokenMatchResult.None;
return(false);
}
public void TestTryGetValueByString()
{
ArgumentToken <int> token = new ArgumentToken <int> .Builder().Name("arg").Parser(int.TryParse).Build();
TokenMatchResult result = new TokenMatchResult(token, "123", "123", MatchOutcome.Full, 3, 1);
result.SetArgValue(token, 123);
int argValue;
bool hasValue = result.TryGetArgValue("arg", out argValue);
Assert.True(hasValue);
Assert.Equal(123, argValue);
}
public static bool TryMatchExplicitDate(ArgumentToken token, string[] inputTokens, int startIdx, out TokenMatchResult result)
{
DateTime output;
//Explicit date
if (DateTime.TryParse(inputTokens[startIdx], out output))
{
result = new TokenMatchResult(token, inputTokens[startIdx], inputTokens[startIdx], MatchOutcome.Full, inputTokens[startIdx].Length, 1);
result.SetArgValue(token, output);
return(true);
}
result = TokenMatchResult.None;
return(false);
}
public static bool TryMatchLastDayOfWeek(ArgumentToken token, DateTime currentDate, string[] inputTokens, int startIdx, out TokenMatchResult result)
{
//last <day-of-week>
if (inputTokens.Length > startIdx + 1)
{
DayOfWeek dayOfWeek;
if (DateParser.TryParseDayOfWeek(inputTokens[startIdx + 1], out dayOfWeek))
{
DateTime output = DateUtil.GetRelativeDateDayOfWeek(currentDate, dayOfWeek);
string matchText = TokenUtils.GetMatchText(inputTokens, startIdx, 2);
result = new TokenMatchResult(token, matchText, matchText, MatchOutcome.Full, matchText.Length, 2);
result.SetArgValue(token, output);
return(true);
}
}
result = TokenMatchResult.None;
return(false);
}
public static bool TryMatchLastDayOfMonth(ArgumentToken token, DateTime currentDate, string[] inputTokens, int startIdx, out TokenMatchResult result)
{
//last <month> <day-of-month>
if (inputTokens.Length > startIdx + 2)
{
int month;
int day;
if (DateParser.TryParseMonth(inputTokens[startIdx + 1], out month) &&
DateParser.TryParseDayOfMonth(inputTokens[startIdx + 2], currentDate.Year - 1, month, out day))
{
DateTime output = new DateTime(currentDate.Year - 1, month, day);
string matchText = TokenUtils.GetMatchText(inputTokens, startIdx, 3);
result = new TokenMatchResult(token, matchText, matchText, MatchOutcome.Full, matchText.Length, 3);
result.SetArgValue(token, output);
return(true);
}
}
result = TokenMatchResult.None;
return(false);
}
public static bool TryMatchRelativeDate(ArgumentToken token, DateTime currentDate, string[] inputTokens, int startIdx, out TokenMatchResult result)
{
//<number> <time-unit> ago
if (inputTokens.Length > startIdx + 2 &&
inputTokens[startIdx + 2].Equals("ago", StringComparison.CurrentCultureIgnoreCase))
{
int number;
TimeUnit unit;
if (int.TryParse(inputTokens[startIdx], out number) &&
DateParser.TryParseTimeUnit(inputTokens[startIdx + 1], out unit))
{
DateTime output = DateUtil.GetRelativeDate(currentDate, -number, unit);
string matchText = TokenUtils.GetMatchText(inputTokens, startIdx, 3);
result = new TokenMatchResult(token, matchText, matchText, MatchOutcome.Full, matchText.Length, 3);
result.SetArgValue(token, output);
return(true);
}
}
result = TokenMatchResult.None;
return(false);
}