/// <summary>
/// Returns the whole pattern of a persian written number
/// </summary>
internal string PersianNumberPattern()
{
string ThreeDB = ThreeDigitBlockPattern();
string BlockAndMult = BlockPlusMultiplier();
string MultPlus3DB =
RegexPatternCreator.CreateGroup("",
RegexPatternCreator.ClosurePlus(
RegexPatternCreator.CreateGroup("",
BlockAndMult, RegexPatternCreator.BetWordWSPlus, "و", RegexPatternCreator.BetWordWSPlus
)
),
RegexPatternCreator.ClosureQuestionMark(
ThreeDB
)
);
string MultPlus =
RegexPatternCreator.CreateGroup("",
BlockAndMult,
RegexPatternCreator.ClosureStar(RegexPatternCreator.CreateGroup("",
RegexPatternCreator.BetWordWSPlus, "و", RegexPatternCreator.BetWordWSPlus, BlockAndMult
)),
RegexPatternCreator.ClosureQuestionMark(RegexPatternCreator.CreateGroup("",
RegexPatternCreator.BetWordWSPlus, "و", RegexPatternCreator.BetWordWSPlus, ThreeDB
))
);
string numberPattern = RegexPatternCreator.CreateGroup("",
RegexPatternCreator.CreateOR(true, MultPlus, ThreeDB)
);
return(@"\b" + RegexPatternCreator.CreateOR(false, numberPattern, "(صفرم)", "(صفر)") + @"\b");
}
/// <summary>
/// Returns regex pattern for 3-digit numbers from ones to ten-and ones. e.g. 117, 308 (NOT 120).
/// </summary>
/// <returns></returns>
private string AllUpToOnesAndTenOnes()
{
string hundsGroup = RegexPatternCreator.ClosureQuestionMark(
RegexPatternCreator.CreateGroup("", HundsPattern(),
RegexPatternCreator.BetWordWSPlus, "و", RegexPatternCreator.BetWordWSPlus
)
);
string tensGroup =
RegexPatternCreator.ClosureQuestionMark(
RegexPatternCreator.CreateGroup("", TensPattern(),
RegexPatternCreator.BetWordWSPlus, "و", RegexPatternCreator.BetWordWSPlus
)
);
string numberPattern =
RegexPatternCreator.CreateGroup("", hundsGroup,
RegexPatternCreator.CreateGroup("", RegexPatternCreator.CreateOR(true,
TenOnesPattern(),
RegexPatternCreator.CreateGroup("", tensGroup, OnesPattern())
))
);
return(@"\b" + numberPattern + OrdinalityPattern() + @"\b");
}
/// <summary>
/// returns the pattern that makes numbers ordinal. i.e. adds "م" and "ام" in the end.
/// </summary>
/// <returns></returns>
private string OrdinalityPattern()
{
string ordinalityPat = RegexPatternCreator.ClosureQuestionMark(
RegexPatternCreator.CreateGroup("",
RegexPatternCreator.InWordWSStar,
RegexPatternCreator.CreateGroup("", RegexPatternCreator.CreateOR(true, "م", "ام"))
)
);
return(ordinalityPat);
}
/// <summary>
/// Returns the complete regex date pattern in Persian.
/// </summary>
/// <returns></returns>
private string PersianDatePattern()
{
string monthYearOptionalLiteral = RegexPatternCreator.CreateGroup("",
RegexPatternCreator.ClosureQuestionMark(RegexPatternCreator.CreateGroup("",
RegexPatternCreator.BetWordWSPlus, "ماه")),
RegexPatternCreator.ClosureQuestionMark(RegexPatternCreator.CreateGroup("",
RegexPatternCreator.BetWordWSPlus, "سال"))
);
string optionalWeekday = RegexPatternCreator.ClosureQuestionMark(RegexPatternCreator.CreateGroup("", WeekdayPattern(), RegexPatternCreator.BetWordWSPlus));
string optionalYear = RegexPatternCreator.ClosureQuestionMark(RegexPatternCreator.CreateGroup("", RegexPatternCreator.BetWordWSPlus, YearPattern()));
string datePattern = RegexPatternCreator.CreateGroup("PersianDate", optionalWeekday, DayNumPattern(), RegexPatternCreator.BetWordWSPlus, MonthNamePattern(), monthYearOptionalLiteral, optionalYear);
return(@"\b" + datePattern + @"\b");
}
/// <summary>
/// Returns the complete regex pattern for an English date.
/// </summary>
/// <returns></returns>
private string EnglishDatePattern()
{
string optionalWeekday =
RegexPatternCreator.ClosureQuestionMark(RegexPatternCreator.CreateGroup("",
WeekdayPattern(),
RegexPatternCreator.ClosureQuestionMark(RegexPatternCreator.BetWordWSPlus),
RegexPatternCreator.ClosureQuestionMark(","),
RegexPatternCreator.BetWordWSPlus
));
string optionalYear =
RegexPatternCreator.ClosureQuestionMark(RegexPatternCreator.CreateGroup("",
RegexPatternCreator.ClosureQuestionMark(RegexPatternCreator.BetWordWSPlus),
RegexPatternCreator.ClosureQuestionMark(","),
RegexPatternCreator.BetWordWSPlus,
YearPattern()));
string datePattern = RegexPatternCreator.CreateGroup("EnglishDate", optionalWeekday, MonthNamePattern(), RegexPatternCreator.BetWordWSPlus, DayNumPattern(), optionalYear);
return(@"\b" + datePattern + @"\b");
}
/// <summary>
/// Returns regex patterns for the multipliers of 100. e.g. سیصد، دویست، نهصد، صد
/// </summary>
/// <returns></returns>
private string HundsPattern()
{
string writtenNum =
RegexPatternCreator.CreateGroup(HUNDSNUM_NAME,
RegexPatternCreator.CreateOR(false, "یک", "دو", "سی", "چهار", "پان", "پون", "پنج", "شش", "شیش", "هفت", "هشت", "نه"));
string hunds =
RegexPatternCreator.CreateGroup(HUNDS_NAME,
RegexPatternCreator.CreateOR(true,
RegexPatternCreator.CreateGroup("",
RegexPatternCreator.ClosureQuestionMark(
RegexPatternCreator.CreateGroup("", writtenNum, RegexPatternCreator.InWordWSStar)
),
"صد"),
"دویست", "سیصد"));
return(hunds);
}
/// <summary>
/// Returns the regex pattern for the day number (in month) in an English date, which can only be digits.
/// </summary>
/// <returns></returns>
private string DayNumPattern()
{
return(RegexPatternCreator.CreateGroup("",
RegexPatternCreator.CreateGroup("DayNum", @"\d\d?"),
RegexPatternCreator.ClosureQuestionMark("th|st|rd|nd")));
}
/// <summary>
/// Returns regex pattern for week-day part of the date pattern
/// </summary>
/// <returns></returns>
public string WeekdayPattern()
{
string weekdayDigits = "[12345۱۲۳۴۵]";
string writtenNum = RegexPatternCreator.CreateGroup("WeekdayNum", RegexPatternCreator.CreateOR(false, "یک", "دو", "سه", "چهار", "پنج", weekdayDigits));
string weekday =
RegexPatternCreator.CreateGroup("Weekday",
RegexPatternCreator.CreateOR(true,
RegexPatternCreator.CreateGroup("",
RegexPatternCreator.ClosureQuestionMark(
RegexPatternCreator.CreateGroup("", writtenNum, RegexPatternCreator.InWordWSStar)
),
"شنبه"),
"جمعه"));
return(weekday);
}
