'''
See COPYRIGHT.md for copyright information.
'''
import regex as re

from arelle.ModelValue import QName
from arelle.PluginManager import pluginClassMethods
from arelle.formula.XPathParser import OperationDef
from arelle.XmlValidate import decimalPattern
from arelle.formula import XPathContext
from datetime import datetime

class ixtFunctionNotAvailable(Exception):
    def __init__(self):
        self.args =  (_("ixt function not available"),)
    def __repr__(self):
        return self.args[0]

def call(
        xc: 'XPathContext.XPathContext',
        p: OperationDef,
        qn: QName,
        args: 'XPathContext.ResultStack',
) -> 'XPathContext.RecursiveContextItem':
    try:
        _ixtFunction = ixtNamespaceFunctions[qn.namespaceURI][qn.localName]
    except KeyError:
        raise XPathContext.FunctionNotAvailable(str(qn))
    if len(args) != 1: raise XPathContext.FunctionNumArgs()
    if len(args[0]) != 1: raise XPathContext.FunctionArgType(0,"xs:string")
    return _ixtFunction(str(args[0][0]))

# class of deferred-compilation patterns
# reduces load time by .5 sec (debug) .15 sec (compiled)
class RePattern:
    def __init__(self, pattern, flags=0):
        self.pattern = pattern
        self.regex = None
        self.flags = flags

    def match(self, target):
        if self.regex is None:
            self.regex = re.compile(self.pattern, self.flags)
        return self.regex.match(target)

    def search(self, target):
        if self.regex is None:
            self.regex = re.compile(self.pattern, self.flags)
        return self.regex.search(target)

dateslashPattern = RePattern(r"^[ \t\n\r]*(\d+)/(\d+)/(\d+)[ \t\n\r]*$")
daymonthslashPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})/([0-9]{1,2})[ \t\n\r]*$")
monthdayslashPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})/([0-9]{1,2})[ \t\n\r]*$")
datedotPattern = RePattern(r"^[ \t\n\r]*(\d+)\.(\d+)\.(\d+)[ \t\n\r]*$")
daymonthPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+([0-9]{1,2})[ \t\n\r]*$")
monthdayPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+([0-9]{1,2})[A-Za-z]*[ \t\n\r]*$")
daymonthyearPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+([0-9]{1,2})[^0-9]+([0-9]{4}|[0-9]{1,2})[ \t\n\r]*$")
monthdayyearPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+([0-9]{1,2})[^0-9]+([0-9]{4}|[0-9]{1,2})[ \t\n\r]*$")

dateUsPattern = RePattern(r"^[ \t\n\r]*(\w+)\s+(\d+),\s+(\d+)[ \t\n\r]*$")
dateEuPattern = RePattern(r"^[ \t\n\r]*(\d+)\s+(\w+)\s+(\d+)[ \t\n\r]*$")
daymonthBgPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(ян|фев|мар|апр|май|маи|юни|юли|авг|сеп|окт|ное|дек|ЯН|ФЕВ|МАР|АПР|МАЙ|МАИ|ЮНИ|ЮЛИ|АВГ|СЕП|ОКТ|НОЕ|ДЕК|Ян|Фев|Мар|Апр|Май|Маи|Юни|Юли|Авг|Сеп|Окт|Ное|Дек)[^0-9]{0,6}[ \t\n\r]*$")
daymonthCsPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(ledna|února|unora|března|brezna|dubna|května|kvetna|června|cervna|července|cervence|srpna|září|zari|října|rijna|listopadu|prosince|led|úno|uno|bře|bre|dub|kvě|kve|čvn|cvn|čvc|cvc|srp|zář|zar|říj|rij|lis|pro|LEDNA|ÚNORA|UNORA|BŘEZNA|BREZNA|DUBNA|KVĚTNA|KVETNA|ČERVNA|CERVNA|ČERVENCE|CERVENCE|SRPNA|ZÁŘÍ|ZARI|ŘÍJNA|RIJNA|LISTOPADU|PROSINCE|LED|ÚNO|UNO|BŘE|BRE|DUB|KVĚ|KVE|ČVN|CVN|ČVC|CVC|SRP|ZÁŘ|ZAR|ŘÍJ|RIJ|LIS|PRO|Ledna|Února|Unora|Března|Brezna|Dubna|Května|Kvetna|Června|Cervna|Července|Cervence|Srpna|Září|Zari|Října|Rijna|Listopadu|Prosince|Led|Úno|Uno|Bře|Bre|Dub|Kvě|Kve|Čvn|Cvn|Čvc|Cvc|Srp|Zář|Zar|Říj|Rij|Lis|Pro)\.?[ \t\n\r]*$")
daymonthCyPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]*[^0-9a-zA-Z]+(ion|chwe|maw|ebr|mai|meh|gor|aws|med|hyd|tach|rhag|ION|CHWE|MAW|EBR|MAI|MEH|GOR|AWS|MED|HYD|TACH|RHAG|Ion|Chwe|Maw|Ebr|Mai|Meh|Gor|Aws|Med|Hyd|Tach|Rhag)[^0-9]{0,7}[ \t\n\r]*$")
daymonthDePattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|jän|jaen|feb|mär|maer|mar|apr|mai|jun|jul|aug|sep|okt|nov|dez|JAN|JÄN|JAEN|FEB|MÄR|MAER|MAR|APR|MAI|JUN|JUL|AUG|SEP|OKT|NOV|DEZ|Jan|Jän|Jaen|Feb|Mär|Maer|Mar|Apr|Mai|Jun|Jul|Aug|Sep|Okt|Nov|Dez)[^0-9]{0,6}[ \t\n\r]*$")
daymonthDkPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|feb|mar|apr|maj|jun|jul|aug|sep|okt|nov|dec)([A-Za-z]*)([.]*)[ \t\n\r]*$", re.IGNORECASE)
daymonthElPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(ιαν|ίαν|φεβ|μάρ|μαρ|απρ|άπρ|αρίλ|άρίλ|αριλ|άριλ|μαΐ|μαι|μάι|μαϊ|μάϊ|ιούν|ίούν|ίουν|ιουν|ιούλ|ίούλ|ίουλ|ίουλ|ιουλ|αύγ|αυγ|σεπ|οκτ|όκτ|νοέ|νοε|δεκ|ΙΑΝ|ΊΑΝ|IΑΝ|ΦΕΒ|ΜΆΡ|ΜΑΡ|ΑΠΡ|ΆΠΡ|AΠΡ|AΡΙΛ|ΆΡΙΛ|ΑΡΙΛ|ΜΑΪ́|ΜΑΙ|ΜΆΙ|ΜΑΪ|ΜΆΪ|ΙΟΎΝ|ΊΟΎΝ|ΊΟΥΝ|IΟΥΝ|ΙΟΥΝ|IΟΥΝ|ΙΟΎΛ|ΊΟΎΛ|ΊΟΥΛ|IΟΎΛ|ΙΟΥΛ|IΟΥΛ|ΑΎΓ|ΑΥΓ|ΣΕΠ|ΟΚΤ|ΌΚΤ|OΚΤ|ΝΟΈ|ΝΟΕ|ΔΕΚ|Ιαν|Ίαν|Iαν|Φεβ|Μάρ|Μαρ|Απρ|Άπρ|Aπρ|Αρίλ|Άρίλ|Aρίλ|Aριλ|Άριλ|Αριλ|Μαΐ|Μαι|Μάι|Μαϊ|Μάϊ|Ιούν|Ίούν|Ίουν|Iούν|Ιουν|Iουν|Ιούλ|Ίούλ|Ίουλ|Iούλ|Ιουλ|Iουλ|Αύγ|Αυγ|Σεπ|Οκτ|Όκτ|Oκτ|Νοέ|Νοε|Δεκ)[^0-9]{0,8}[ \t\n\r]*$")
daymonthEnPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(January|February|March|April|May|June|July|August|September|October|November|December|Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC|JANUARY|FEBRUARY|MARCH|APRIL|MAY|JUNE|JULY|AUGUST|SEPTEMBER|OCTOBER|NOVEMBER|DECEMBER)[ \t\n\r]*$")
monthdayEnPattern = RePattern(r"^[ \t\n\r]*(January|February|March|April|May|June|July|August|September|October|November|December|Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC|JANUARY|FEBRUARY|MARCH|APRIL|MAY|JUNE|JULY|AUGUST|SEPTEMBER|OCTOBER|NOVEMBER|DECEMBER)[^0-9]+([0-9]{1,2})[A-Za-z]{0,2}[ \t\n\r]*$")
daymonthEsPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(ene|feb|mar|abr|may|jun|jul|ago|sep|oct|nov|dic|ENE|FEB|MAR|ABR|MAY|JUN|JUL|AGO|SEP|OCT|NOV|DIC|Ene|Feb|Mar|Abr|May|Jun|Jul|Ago|Sep|Oct|Nov|Dic)[^0-9]{0,7}[ \t\n\r]*$")
daymonthEtPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jaan|veebr|märts|marts|apr|mai|juuni|juuli|aug|sept|okt|nov|dets|JAAN|VEEBR|MÄRTS|MARTS|APR|MAI|JUUNI|JUULI|AUG|SEPT|OKT|NOV|DETS|Jaan|Veebr|Märts|Marts|Apr|Mai|Juuni|Juuli|Aug|Sept|Okt|Nov|Dets)[^0-9]{0,5}[ \t\n\r]*$")
daymonthFiPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]*[^0-9a-zA-Z]+(tam|hel|maa|huh|tou|kes|hei|elo|syy|lok|mar|jou|TAM|HEL|MAA|HUH|TOU|KES|HEI|ELO|SYY|LOK|MAR|JOU|Tam|Hel|Maa|Huh|Tou|Kes|Hei|Elo|Syy|Lok|Mar|Jou)[^0-9]{0,8}[ \t\n\r]*$")
daymonthFrPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(janv|févr|fevr|mars|avr|mai|juin|juil|août|aout|sept|oct|nov|déc|dec|JANV|FÉVR|FEVR|MARS|AVR|MAI|JUIN|JUIL|AOÛT|AOUT|SEPT|OCT|NOV|DÉC|DEC|Janv|Févr|Fevr|Mars|Avr|Mai|Juin|Juil|Août|Aout|Sept|Oct|Nov|Déc|Dec)[^0-9]{0,5}[ \t\n\r]*$")
daymonthHrPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(sij|velj|ožu|ozu|tra|svi|lip|srp|kol|ruj|lis|stu|pro|SIJ|VELJ|OŽU|OZU|TRA|SVI|LIP|SRP|KOL|RUJ|LIS|STU|PRO|Sij|Velj|Ožu|Ozu|Tra|Svi|Lip|Srp|Kol|Ruj|Lis|Stu|Pro)[^0-9]{0,6}[ \t\n\r]*$")
monthdayHuPattern = RePattern(r"^[ \t\n\r]*(jan|feb|márc|marc|ápr|apr|máj|maj|jún|jun|júl|jul|aug|szept|okt|nov|dec|JAN|FEB|MÁRC|MARC|ÁPR|APR|MÁJ|MAJ|JÚN|JUN|JÚL|JUL|AUG|SZEPT|OKT|NOV|DEC|Jan|Feb|Márc|Marc|Ápr|Apr|Máj|Maj|Jún|Jun|Júl|Jul|Aug|Szept|Okt|Nov|Dec)[^0-9]{0,7}[^0-9]+([0-9]{1,2})[ \t\n\r]*$")
daymonthItPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(gen|feb|mar|apr|mag|giu|lug|ago|set|ott|nov|dic|GEN|FEB|MAR|APR|MAG|GIU|LUG|AGO|SET|OTT|NOV|DIC|Gen|Feb|Mar|Apr|Mag|Giu|Lug|Ago|Set|Ott|Nov|Dic)[^0-9]{0,6}[ \t\n\r]*$")
monthdayLtPattern = RePattern(r"^[ \t\n\r]*(sau|vas|kov|bal|geg|bir|lie|rugp|rgp|rugs|rgs|spa|spl|lap|gru|grd|SAU|VAS|KOV|BAL|GEG|BIR|LIE|RUGP|RGP|RUGS|RGS|SPA|SPL|LAP|GRU|GRD|Sau|Vas|Kov|Bal|Geg|Bir|Lie|Rugp|Rgp|Rugs|Rgs|Spa|Spl|Lap|Gru|Grd)[^0-9]{0,6}[^0-9]+([0-9]{1,2})[^0-9]*[ \t\n\r]*$")
daymonthLvPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(janv|febr|marts|apr|maijs|jūn|jun|jūl|jul|aug|sept|okt|nov|dec|JANV|FEBR|MARTS|APR|MAIJS|JŪN|JUN|JŪL|JUL|AUG|SEPT|OKT|NOV|DEC|Janv|Febr|Marts|Apr|Maijs|Jūn|Jun|Jūl|Jul|Aug|Sept|Okt|Nov|Dec)[^0-9]{0,6}[ \t\n\r]*$")
daymonthNlPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|feb|maa|mrt|apr|mei|jun|jul|aug|sep|okt|nov|dec|JAN|FEB|MAA|MRT|APR|MEI|JUN|JUL|AUG|SEP|OKT|NOV|DEC|Jan|Feb|Maa|Mrt|Apr|Mei|Jun|Jul|Aug|Sep|Okt|Nov|Dec)[^0-9]{0,6}[ \t\n\r]*$")
daymonthNoPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|feb|mar|apr|mai|jun|jul|aug|sep|okt|nov|des|JAN|FEB|MAR|APR|MAI|JUN|JUL|AUG|SEP|OKT|NOV|DES|Jan|Feb|Mar|Apr|Mai|Jun|Jul|Aug|Sep|Okt|Nov|Des)[^0-9]{0,6}[ \t\n\r]*$")
daymonthPlPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]*[^0-9a-zA-Z]+(sty|lut|mar|kwi|maj|cze|lip|sie|wrz|paź|paz|lis|gru|STY|LUT|MAR|KWI|MAJ|CZE|LIP|SIE|WRZ|PAŹ|PAZ|LIS|GRU|Sty|Lut|Mar|Kwi|Maj|Cze|Lip|Sie|Wrz|Paź|Paz|Lis|Gru)[^0-9]{0,9}s*$")
daymonthPtPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|fev|mar|abr|mai|jun|jul|ago|set|out|nov|dez|JAN|FEV|MAR|ABR|MAI|JUN|JUL|AGO|SET|OUT|NOV|DEZ|Jan|Fev|Mar|Abr|Mai|Jun|Jul|Ago|Set|Out|Nov|Dez)[^0-9]{0,6}[ \t\n\r]*$")
daymonthRomanPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]*[^XVIxvi]((I?(X|V|I)I{0,3})|(i?(x|v|i)i{0,3}))[ \t\n\r]*$")
daymonthRoPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(ian|feb|mar|apr|mai|iun|iul|aug|sep|oct|noi|nov|dec|IAN|FEB|MAR|APR|MAI|IUN|IUL|AUG|SEP|OCT|NOI|NOV|DEC|Ian|Feb|Mar|Apr|Mai|Iun|Iul|Aug|Sep|Oct|Noi|Nov|Dec)[^0-9]{0,7}[ \t\n\r]*$")
daymonthSkPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|feb|mar|apr|máj|maj|jún|jun|júl|jul|aug|sep|okt|nov|dec|JAN|FEB|MAR|APR|MÁJ|MAJ|JÚN|JUN|JÚL|JUL|AUG|SEP|OKT|NOV|DEC|Jan|Feb|Mar|Apr|Máj|Maj|Jún|Jun|Júl|Jul|Aug|Sep|Okt|Nov|Dec)[^0-9]{0,6}[ \t\n\r]*$")
daymonthSlPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|feb|mar|apr|maj|jun|jul|avg|sep|okt|nov|dec|JAN|FEB|MAR|APR|MAJ|JUN|JUL|AVG|SEP|OKT|NOV|DEC|Jan|Feb|Mar|Apr|Maj|Jun|Jul|Avg|Sep|Okt|Nov|Dec)[^0-9]{0,6}[ \t\n\r]*$")
daymonthyearBgPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(ян|фев|мар|апр|май|маи|юни|юли|авг|сеп|окт|ное|дек|ЯН|ФЕВ|МАР|АПР|МАЙ|МАИ|ЮНИ|ЮЛИ|АВГ|СЕП|ОКТ|НОЕ|ДЕК|Ян|Фев|Мар|Апр|Май|Маи|Юни|Юли|Авг|Сеп|Окт|Ное|Дек)[A-Za-z]*[^0-9]+([0-9]{1,2}|[0-9]{4})[^0-9]*[ \t\n\r]*$")
daymonthyearCsPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(ledna|února|unora|března|brezna|dubna|května|kvetna|června|cervna|července|cervence|srpna|září|zari|října|rijna|listopadu|prosince|led|úno|uno|bře|bre|dub|kvě|kve|čvn|cvn|čvc|cvc|srp|zář|zar|říj|rij|lis|pro|LEDNA|ÚNORA|UNORA|BŘEZNA|BREZNA|DUBNA|KVĚTNA|KVETNA|ČERVNA|CERVNA|ČERVENCE|CERVENCE|SRPNA|ZÁŘÍ|ZARI|ŘÍJNA|RIJNA|LISTOPADU|PROSINCE|LED|ÚNO|UNO|BŘE|BRE|DUB|KVĚ|KVE|ČVN|CVN|ČVC|CVC|SRP|ZÁŘ|ZAR|ŘÍJ|RIJ|LIS|PRO|Ledna|Února|Unora|Března|Brezna|Dubna|Května|Kvetna|Června|Cervna|Července|Cervence|Srpna|Září|Zari|Října|Rijna|Listopadu|Prosince|Led|Úno|Uno|Bře|Bre|Dub|Kvě|Kve|Čvn|Cvn|Čvc|Cvc|Srp|Zář|Zar|Říj|Rij|Lis|Pro)[^0-9a-zA-Z]+[^0-9]*([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearCyPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]*[^0-9a-zA-Z]+(ion|chwe|maw|ebr|mai|meh|gor|aws|med|hyd|tach|rhag|ION|CHWE|MAW|EBR|MAI|MEH|GOR|AWS|MED|HYD|TACH|RHAG|Ion|Chwe|Maw|Ebr|Mai|Meh|Gor|Aws|Med|Hyd|Tach|Rhag)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearDePattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|jän|jaen|feb|mär|maer|mar|apr|mai|jun|jul|aug|sep|okt|nov|dez|JAN|JÄN|JAEN|FEB|MÄR|MAER|MAR|APR|MAI|JUN|JUL|AUG|SEP|OKT|NOV|DEZ|Jan|Jän|Jaen|Feb|Mär|Maer|Mar|Apr|Mai|Jun|Jul|Aug|Sep|Okt|Nov|Dez)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearDkPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|feb|mar|apr|maj|jun|jul|aug|sep|okt|nov|dec)([A-Za-z]*)([.]*)[^0-9]*([0-9]{4}|[0-9]{1,2})[ \t\n\r]*$", re.IGNORECASE)
daymonthyearElPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(ιαν|ίαν|φεβ|μάρ|μαρ|απρ|άπρ|αρίλ|άρίλ|αριλ|άριλ|μαΐ|μαι|μάι|μαϊ|μάϊ|ιούν|ίούν|ίουν|ιουν|ιούλ|ίούλ|ίουλ|ίουλ|ιουλ|αύγ|αυγ|σεπ|οκτ|όκτ|νοέ|νοε|δεκ|ΙΑΝ|ΊΑΝ|IΑΝ|ΦΕΒ|ΜΆΡ|ΜΑΡ|ΑΠΡ|ΆΠΡ|AΠΡ|AΡΙΛ|ΆΡΙΛ|ΑΡΙΛ|ΜΑΪ́|ΜΑΙ|ΜΆΙ|ΜΑΪ|ΜΆΪ|ΙΟΎΝ|ΊΟΎΝ|ΊΟΥΝ|IΟΎΝ|ΙΟΥΝ|IΟΥΝ|ΙΟΎΛ|ΊΟΎΛ|ΊΟΥΛ|IΟΎΛ|ΙΟΥΛ|IΟΥΛ|ΑΎΓ|ΑΥΓ|ΣΕΠ|ΟΚΤ|ΌΚΤ|OΚΤ|ΝΟΈ|ΝΟΕ|ΔΕΚ|Ιαν|Ίαν|Iαν|Φεβ|Μάρ|Μαρ|Απρ|Άπρ|Aπρ|Αρίλ|Άρίλ|Aρίλ|Aριλ|Άριλ|Αριλ|Μαΐ|Μαι|Μάι|Μαϊ|Μάϊ|Ιούν|Ίούν|Ίουν|Iούν|Ιουν|Iουν|Ιούλ|Ίούλ|Ίουλ|Iούλ|Ιουλ|Iουλ|Αύγ|Αυγ|Σεπ|Οκτ|Όκτ|Oκτ|Νοέ|Νοε|Δεκ)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearEnPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(January|February|March|April|May|June|July|August|September|October|November|December|Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC|JANUARY|FEBRUARY|MARCH|APRIL|MAY|JUNE|JULY|AUGUST|SEPTEMBER|OCTOBER|NOVEMBER|DECEMBER)[^0-9]+([0-9]{4}|[0-9]{1,2})[ \t\n\r]*$")
monthdayyearEnPattern = RePattern(r"^[ \t\n\r]*(January|February|March|April|May|June|July|August|September|October|November|December|Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC|JANUARY|FEBRUARY|MARCH|APRIL|MAY|JUNE|JULY|AUGUST|SEPTEMBER|OCTOBER|NOVEMBER|DECEMBER)[^0-9]+([0-9]+)[^0-9]+([0-9]{4}|[0-9]{1,2})[ \t\n\r]*$")
daymonthyearEsPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(ene|feb|mar|abr|may|jun|jul|ago|sep|oct|nov|dic|ENE|FEB|MAR|ABR|MAY|JUN|JUL|AGO|SEP|OCT|NOV|DIC|Ene|Feb|Mar|Abr|May|Jun|Jul|Ago|Sep|Oct|Nov|Dic)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearEtPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jaan|veebr|märts|marts|apr|mai|juuni|juuli|aug|sept|okt|nov|dets|JAAN|VEEBR|MÄRTS|MARTS|APR|MAI|JUUNI|JUULI|AUG|SEPT|OKT|NOV|DETS|Jaan|Veebr|Märts|Marts|Apr|Mai|Juuni|Juuli|Aug|Sept|Okt|Nov|Dets)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearFiPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]*[^0-9a-zA-Z]+(tam|hel|maa|huh|tou|kes|hei|elo|syy|lok|mar|jou|TAM|HEL|MAA|HUH|TOU|KES|HEI|ELO|SYY|LOK|MAR|JOU|Tam|Hel|Maa|Huh|Tou|Kes|Hei|Elo|Syy|Lok|Mar|Jou)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearFrPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(janv|févr|fevr|mars|avr|mai|juin|juil|août|aout|sept|oct|nov|déc|dec|JANV|FÉVR|FEVR|MARS|AVR|MAI|JUIN|JUIL|AOÛT|AOUT|SEPT|OCT|NOV|DÉC|DEC|Janv|Févr|Fevr|Mars|Avr|Mai|Juin|Juil|Août|Aout|Sept|Oct|Nov|Déc|Dec)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearHrPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(sij|velj|ožu|ozu|tra|svi|lip|srp|kol|ruj|lis|stu|pro|SIJ|VELJ|OŽU|OZU|TRA|SVI|LIP|SRP|KOL|RUJ|LIS|STU|PRO|Sij|Velj|Ožu|Ozu|Tra|Svi|Lip|Srp|Kol|Ruj|Lis|Stu|Pro)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
yearmonthdayHuPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2}|[0-9]{4})[^0-9]+(jan|feb|márc|marc|ápr|apr|máj|maj|jún|jun|júl|jul|aug|szept|okt|nov|dec|JAN|FEB|MÁRC|MARC|ÁPR|APR|MÁJ|MAJ|JÚN|JUN|JÚL|JUL|AUG|SZEPT|OKT|NOV|DEC|Jan|Feb|Márc|Marc|Ápr|Apr|Máj|Maj|Jún|Jun|Júl|Jul|Aug|Szept|Okt|Nov|Dec)[^0-9]+([0-9]{1,2})[ \t\n\r]*$")
daymonthyearInPatternTR4 = RePattern(r"^[ \t\n\r]*([0-9]{1,2}|[०-९]{1,2})[^0-9०-९]+(जनवरी|फरवरी|मार्च|अप्रैल|मई|जून|जुलाई|अगस्त|सितंबर|अक्टूबर|नवंबर|दिसंबर)[^0-9०-९]+([0-9]{2}|[0-9]{4}|[०-९]{2}|[०-९]{4})[ \t\n\r]*$")
daymonthyearInPatternTR3 = RePattern(r"^[ \t\n\r]*([0-9]{1,2}|[०-९]{1,2})[^0-9०-९]+(जनवरी|फरवरी|मार्च|अप्रैल|मई|जून|जुलाई|अगस्त|सितंबर|अक्टूबर|नवंबर|दिसंबर|[०-९]{1,2})[^0-9०-९]+([0-9]{2}|[0-9]{4}|[०-९]{2}|[०-९]{4})[ \t\n\r]*$")
daymonthyearInIndPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2}|[०-९]{1,2})[^0-9०-९]+((C\S*ait|चैत्र)|(Vai|वैशाख|बैसाख)|(Jy|ज्येष्ठ)|(dha|ḍha|आषाढ|आषाढ़)|(vana|Śrāvaṇa|श्रावण|सावन)|(Bh\S+dra|Proṣṭhapada|भाद्रपद|भादो)|(in|आश्विन)|(K\S+rti|कार्तिक)|(M\S+rga|Agra|मार्गशीर्ष|अगहन)|(Pau|पौष)|(M\S+gh|माघ)|(Ph\S+lg|फाल्गुन))[^0-9०-९]+([0-9]{2}|[0-9]{4}|[०-९]{2}|[०-९]{4})[ \t\n\r]*$")
daymonthyearItPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(gen|feb|mar|apr|mag|giu|lug|ago|set|ott|nov|dic|GEN|FEB|MAR|APR|MAG|GIU|LUG|AGO|SET|OTT|NOV|DIC|Gen|Feb|Mar|Apr|Mag|Giu|Lug|Ago|Set|Ott|Nov|Dic)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
yearmonthdayLtPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2}|[0-9]{4})[^0-9]*[^0-9a-zA-Z]+(sau|vas|kov|bal|geg|bir|lie|rugp|rgp|rugs|rgs|spa|spl|lap|gru|grd|SAU|VAS|KOV|BAL|GEG|BIR|LIE|RUGP|RGP|RUGS|RGS|SPA|SPL|LAP|GRU|GRD|Sau|Vas|Kov|Bal|Geg|Bir|Lie|Rugp|Rgp|Rugs|Rgs|Spa|Spl|Lap|Gru|Grd)[^0-9]+([0-9]{1,2})[^0-9]*[ \t\n\r]*$")
yeardaymonthLvPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2}|[0-9]{4})[^0-9]+([0-9]{1,2})[^0-9]+(janv|febr|marts|apr|maijs|jūn|jun|jūl|jul|aug|sept|okt|nov|dec|JANV|FEBR|MARTS|APR|MAIJS|JŪN|JUN|JŪL|JUL|AUG|SEPT|OKT|NOV|DEC|Janv|Febr|Marts|Apr|Maijs|Jūn|Jun|Jūl|Jul|Aug|Sept|Okt|Nov|Dec)[^0-9]*[ \t\n\r]*$")
daymonthyearNlPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|feb|maa|mrt|apr|mei|jun|jul|aug|sep|okt|nov|dec|JAN|FEB|MAA|MRT|APR|MEI|JUN|JUL|AUG|SEP|OKT|NOV|DEC|Jan|Feb|Maa|Mrt|Apr|Mei|Jun|Jul|Aug|Sep|Okt|Nov|Dec)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearNoPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|feb|mar|apr|mai|jun|jul|aug|sep|okt|nov|des|JAN|FEB|MAR|APR|MAI|JUN|JUL|AUG|SEP|OKT|NOV|DES|Jan|Feb|Mar|Apr|Mai|Jun|Jul|Aug|Sep|Okt|Nov|Des)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearPlPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]*[^0-9a-zA-Z]+(sty|lut|mar|kwi|maj|cze|lip|sie|wrz|paź|paz|lis|gru|STY|LUT|MAR|KWI|MAJ|CZE|LIP|SIE|WRZ|PAŹ|PAZ|LIS|GRU|Sty|Lut|Mar|Kwi|Maj|Cze|Lip|Sie|Wrz|Paź|Paz|Lis|Gru)[^0-9]+([0-9]{1,2}|[0-9]{4})[^0-9]*[ \t\n\r]*$")
daymonthyearPtPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|fev|mar|abr|mai|jun|jul|ago|set|out|nov|dez|JAN|FEV|MAR|ABR|MAI|JUN|JUL|AGO|SET|OUT|NOV|DEZ|Jan|Fev|Mar|Abr|Mai|Jun|Jul|Ago|Set|Out|Nov|Dez)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearRomanPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]*[^XVIxvi]((I?(X|V|I)I{0,3})|(i?(x|v|i)i{0,3}))[^XVIxvi][^0-9]*([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearRoPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(ian|feb|mar|apr|mai|iun|iul|aug|sep|oct|noi|nov|dec|IAN|FEB|MAR|APR|MAI|IUN|IUL|AUG|SEP|OCT|NOI|NOV|DEC|Ian|Feb|Mar|Apr|Mai|Iun|Iul|Aug|Sep|Oct|Noi|Nov|Dec)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearSkPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|feb|mar|apr|máj|maj|jún|jun|júl|jul|aug|sep|okt|nov|dec|JAN|FEB|MAR|APR|MÁJ|MAJ|JÚN|JUN|JÚL|JUL|AUG|SEP|OKT|NOV|DEC|Jan|Feb|Mar|Apr|Máj|Maj|Jún|Jun|Júl|Jul|Aug|Sep|Okt|Nov|Dec)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
daymonthyearSlPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+(jan|feb|mar|apr|maj|jun|jul|avg|sep|okt|nov|dec|JAN|FEB|MAR|APR|MAJ|JUN|JUL|AVG|SEP|OKT|NOV|DEC|Jan|Feb|Mar|Apr|Maj|Jun|Jul|Avg|Sep|Okt|Nov|Dec)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearBgPattern = RePattern(r"^[ \t\n\r]*(ян|фев|мар|апр|май|маи|юни|юли|авг|сеп|окт|ное|дек|ЯН|ФЕВ|МАР|АПР|МАЙ|МАИ|ЮНИ|ЮЛИ|АВГ|СЕП|ОКТ|НОЕ|ДЕК|Ян|Фев|Мар|Апр|Май|Маи|Юни|Юли|Авг|Сеп|Окт|Ное|Дек)[^0-9]+([0-9]{1,2}|[0-9]{4})[^0-9]*[ \t\n\r]*$")
monthyearCsPattern = RePattern(r"^[ \t\n\r]*(leden|ledna|lednu|únor|unor|února|unora|únoru|unoru|březen|brezen|března|brezna|březnu|breznu|duben|dubna|dubnu|květen|kveten|května|kvetna|květnu|kvetnu|červen|cerven|června|cervna|červnu|cervnu|červenec|cervenec|července|cervence|červenci|cervenci|srpen|srpna|srpnu|září|zari|říjen|rijen|října|rijna|říjnu|rijnu|listopad|listopadu|prosinec|prosince|prosinci|led|úno|uno|bře|bre|dub|kvě|kve|čvn|cvn|čvc|cvc|srp|zář|zar|říj|rij|lis|pro|LEDEN|LEDNA|LEDNU|ÚNOR|UNOR|ÚNORA|UNORA|ÚNORU|UNORU|BŘEZEN|BREZEN|BŘEZNA|BREZNA|BŘEZNU|BREZNU|DUBEN|DUBNA|DUBNU|KVĚTEN|KVETEN|KVĚTNA|KVETNA|KVĚTNU|KVETNU|ČERVEN|CERVEN|ČERVNA|CERVNA|ČERVNU|CERVNU|ČERVENEC|CERVENEC|ČERVENCE|CERVENCE|ČERVENCI|CERVENCI|SRPEN|SRPNA|SRPNU|ZÁŘÍ|ZARI|ŘÍJEN|RIJEN|ŘÍJNA|RIJNA|ŘÍJNU|RIJNU|LISTOPAD|LISTOPADU|PROSINEC|PROSINCE|PROSINCI|LED|ÚNO|UNO|BŘE|BRE|DUB|KVĚ|KVE|ČVN|CVN|ČVC|CVC|SRP|ZÁŘ|ZAR|ŘÍJ|RIJ|LIS|PRO|Leden|Ledna|Lednu|Únor|Unor|Února|Unora|Únoru|Unoru|Březen|Brezen|Března|Brezna|Březnu|Breznu|Duben|Dubna|Dubnu|Květen|Kveten|Května|Kvetna|Květnu|Kvetnu|Červen|Cerven|Června|Cervna|Červnu|Cervnu|Červenec|Cervenec|Července|Cervence|Červenci|Cervenci|Srpen|Srpna|Srpnu|Září|Zari|Říjen|Rijen|Října|Rijna|Říjnu|Rijnu|Listopad|Listopadu|Prosinec|Prosince|Prosinci|Led|Úno|Uno|Bře|Bre|Dub|Kvě|Kve|Čvn|Cvn|Čvc|Cvc|Srp|Zář|Zar|Říj|Rij|Lis|Pro)[^0-9a-zA-Z]+[^0-9]*([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearCyPattern = RePattern(r"^[ \t\n\r]*(ion|chwe|maw|faw|ebr|mai|fai|meh|feh|gor|ngor|aws|med|fed|hyd|tach|dach|nhach|thach|rhag|rag|ION|CHWE|MAW|FAW|EBR|MAI|FAI|MEH|FEH|GOR|NGOR|AWS|MED|FED|HYD|TACH|DACH|NHACH|THACH|RHAG|RAG|Ion|Chwe|Maw|Faw|Ebr|Mai|Fai|Meh|Feh|Gor|Ngor|Aws|Med|Fed|Hyd|Tach|Dach|Nhach|Thach|Rhag|Rag)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearDePattern = RePattern(r"^[ \t\n\r]*(jan|jän|jaen|feb|mär|maer|mar|apr|mai|jun|jul|aug|sep|okt|nov|dez|JAN|JÄN|JAEN|FEB|MÄR|MAER|MAR|APR|MAI|JUN|JUL|AUG|SEP|OKT|NOV|DEZ|Jan|Jän|Jaen|Feb|Mär|Maer|Mar|Apr|Mai|Jun|Jul|Aug|Sep|Okt|Nov|Dez)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearDkPattern = RePattern(r"^[ \t\n\r]*(jan|feb|mar|apr|maj|jun|jul|aug|sep|okt|nov|dec)([A-Za-z]*)([.]*)[^0-9]*([0-9]{4}|[0-9]{1,2})[ \t\n\r]*$", re.IGNORECASE)
monthyearElPattern = RePattern(r"^[ \t\n\r]*(ιαν|ίαν|φεβ|μάρ|μαρ|απρ|άπρ|αρίλ|άρίλ|αριλ|άριλ|μαΐ|μαι|μάι|μαϊ|μάϊ|ιούν|ίούν|ίουν|ιουν|ιούλ|ίούλ|ίουλ|ίουλ|ιουλ|αύγ|αυγ|σεπ|οκτ|όκτ|νοέ|νοε|δεκ|ΙΑΝ|ΊΑΝ|IΑΝ|ΦΕΒ|ΜΆΡ|ΜΑΡ|ΑΠΡ|ΆΠΡ|AΠΡ|AΡΙΛ|ΆΡΙΛ|ΑΡΙΛ|ΜΑΪ́|ΜΑΙ|ΜΆΙ|ΜΑΪ|ΜΆΪ|ΙΟΎΝ|ΊΟΎΝ|ΊΟΥΝ|IΟΎΝ|ΙΟΥΝ|IΟΥΝ|ΙΟΎΛ|ΊΟΎΛ|ΊΟΥΛ|IΟΎΛ|ΙΟΥΛ|IΟΥΛ|ΑΎΓ|ΑΥΓ|ΣΕΠ|ΟΚΤ|ΌΚΤ|OΚΤ|ΝΟΈ|ΝΟΕ|ΔΕΚ|Ιαν|Ίαν|Iαν|Φεβ|Μάρ|Μαρ|Απρ|Άπρ|Aπρ|Αρίλ|Άρίλ|Aρίλ|Aριλ|Άριλ|Αριλ|Μαΐ|Μαι|Μάι|Μαϊ|Μάϊ|Ιούν|Ίούν|Ίουν|Iούν|Ιουν|Iουν|Ιούλ|Ίούλ|Ίουλ|Iούλ|Ιουλ|Iουλ|Αύγ|Αυγ|Σεπ|Οκτ|Όκτ|Oκτ|Νοέ|Νοε|Δεκ)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearEnPattern = RePattern(r"^[ \t\n\r]*(January|February|March|April|May|June|July|August|September|October|November|December|Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC|JANUARY|FEBRUARY|MARCH|APRIL|MAY|JUNE|JULY|AUGUST|SEPTEMBER|OCTOBER|NOVEMBER|DECEMBER)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
yearmonthEnPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2}|[0-9]{4})[^0-9]+(January|February|March|April|May|June|July|August|September|October|November|December|Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC|JANUARY|FEBRUARY|MARCH|APRIL|MAY|JUNE|JULY|AUGUST|SEPTEMBER|OCTOBER|NOVEMBER|DECEMBER)[ \t\n\r]*$")
monthyearEsPattern = RePattern(r"^[ \t\n\r]*(ene|feb|mar|abr|may|jun|jul|ago|sep|oct|nov|dic|ENE|FEB|MAR|ABR|MAY|JUN|JUL|AGO|SEP|OCT|NOV|DIC|Ene|Feb|Mar|Abr|May|Jun|Jul|Ago|Sep|Oct|Nov|Dic)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearEtPattern = RePattern(r"^[ \t\n\r]*(jaan|veebr|märts|marts|apr|mai|juuni|juuli|aug|sept|okt|nov|dets|JAAN|VEEBR|MÄRTS|MARTS|APR|MAI|JUUNI|JUULI|AUG|SEPT|OKT|NOV|DETS|Jaan|Veebr|Märts|Marts|Apr|Mai|Juuni|Juuli|Aug|Sept|Okt|Nov|Dets)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearFiPattern = RePattern(r"^[ \t\n\r]*(tam|hel|maa|huh|tou|kes|hei|elo|syy|lok|mar|jou|TAM|HEL|MAA|HUH|TOU|KES|HEI|ELO|SYY|LOK|MAR|JOU|Tam|Hel|Maa|Huh|Tou|Kes|Hei|Elo|Syy|Lok|Mar|Jou)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearFrPattern = RePattern(r"^[ \t\n\r]*(janv|févr|fevr|mars|avr|mai|juin|juil|août|aout|sept|oct|nov|déc|dec|JANV|FÉVR|FEVR|MARS|AVR|MAI|JUIN|JUIL|AOÛT|AOUT|SEPT|OCT|NOV|DÉC|DEC|Janv|Févr|Fevr|Mars|Avr|Mai|Juin|Juil|Août|Aout|Sept|Oct|Nov|Déc|Dec)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearHrPattern = RePattern(r"^[ \t\n\r]*(sij|velj|ožu|ozu|tra|svi|lip|srp|kol|ruj|lis|stu|pro|SIJ|VELJ|OŽU|OZU|TRA|SVI|LIP|SRP|KOL|RUJ|LIS|STU|PRO|Sij|Velj|Ožu|Ozu|Tra|Svi|Lip|Srp|Kol|Ruj|Lis|Stu|Pro)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
yearmonthHuPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2}|[0-9]{4})[^0-9]+(jan|feb|márc|marc|ápr|apr|máj|maj|jún|jun|júl|jul|aug|szept|okt|nov|dec|JAN|FEB|MÁRC|MARC|ÁPR|APR|MÁJ|MAJ|JÚN|JUN|JÚL|JUL|AUG|SZEPT|OKT|NOV|DEC|Jan|Feb|Márc|Marc|Ápr|Apr|Máj|Maj|Jún|Jun|Júl|Jul|Aug|Szept|Okt|Nov|Dec)[^0-9]{0,7}[ \t\n\r]*$")
monthyearItPattern = RePattern(r"^[ \t\n\r]*(gen|feb|mar|apr|mag|giu|lug|ago|set|ott|nov|dic|GEN|FEB|MAR|APR|MAG|GIU|LUG|AGO|SET|OTT|NOV|DIC|Gen|Feb|Mar|Apr|Mag|Giu|Lug|Ago|Set|Ott|Nov|Dic)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearInPattern = RePattern(r"^[ \t\n\r]*(जनवरी|फरवरी|मार्च|अप्रैल|मई|जून|जुलाई|अगस्त|सितंबर|अक्टूबर|नवंबर|दिसंबर)[^0-9०-९]+([0-9]{2}|[0-9]{4}|[०-९]{2}|[०-९]{4})[ \t\n\r]*$")
yearmonthLtPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2}|[0-9]{4})[^0-9]*[^0-9a-zA-Z]+(sau|vas|kov|bal|geg|bir|lie|rugp|rgp|rugs|rgs|spa|spl|lap|gru|grd|SAU|VAS|KOV|BAL|GEG|BIR|LIE|RUGP|RGP|RUGS|RGS|SPA|SPL|LAP|GRU|GRD|Sau|Vas|Kov|Bal|Geg|Bir|Lie|Rugp|Rgp|Rugs|Rgs|Spa|Spl|Lap|Gru|Grd)[^0-9]*[ \t\n\r]*$")
yearmonthLvPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2}|[0-9]{4})[^0-9]+(janv|febr|marts|apr|maijs|jūn|jun|jūl|jul|aug|sept|okt|nov|dec|JANV|FEBR|MARTS|APR|MAIJS|JŪN|JUN|JŪL|JUL|AUG|SEPT|OKT|NOV|DEC|Janv|Febr|Marts|Apr|Maijs|Jūn|Jun|Jūl|Jul|Aug|Sept|Okt|Nov|Dec)[^0-9]{0,7}[ \t\n\r]*$")
monthyearNlPattern = RePattern(r"^[ \t\n\r]*(jan|feb|maa|mrt|apr|mei|jun|jul|aug|sep|okt|nov|dec|JAN|FEB|MAA|MRT|APR|MEI|JUN|JUL|AUG|SEP|OKT|NOV|DEC|Jan|Feb|Maa|Mrt|Apr|Mei|Jun|Jul|Aug|Sep|Okt|Nov|Dec)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearNoPattern = RePattern(r"^[ \t\n\r]*(jan|feb|mar|apr|mai|jun|jul|aug|sep|okt|nov|des|JAN|FEB|MAR|APR|MAI|JUN|JUL|AUG|SEP|OKT|NOV|DES|Jan|Feb|Mar|Apr|Mai|Jun|Jul|Aug|Sep|Okt|Nov|Des)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearPlPattern = RePattern(r"^[ \t\n\r]*(sty|lut|mar|kwi|maj|cze|lip|sie|wrz|paź|paz|lis|gru|STY|LUT|MAR|KWI|MAJ|CZE|LIP|SIE|WRZ|PAŹ|PAZ|LIS|GRU|Sty|Lut|Mar|Kwi|Maj|Cze|Lip|Sie|Wrz|Paź|Paz|Lis|Gru)[^0-9]+([0-9]{1,2}|[0-9]{4})[^0-9]*[ \t\n\r]*$")
monthyearPtPattern = RePattern(r"^[ \t\n\r]*(jan|fev|mar|abr|mai|jun|jul|ago|set|out|nov|dez|JAN|FEV|MAR|ABR|MAI|JUN|JUL|AGO|SET|OUT|NOV|DEZ|Jan|Fev|Mar|Abr|Mai|Jun|Jul|Ago|Set|Out|Nov|Dez)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearRomanPattern = RePattern(r"^[ \t\n\r]*((I?(X|V|I)I{0,3})|(i?(x|v|i)i{0,3}))[^XVIxvi][^0-9]*([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearRoPattern = RePattern(r"^[ \t\n\r]*(ian|feb|mar|apr|mai|iun|iul|aug|sep|oct|noi|nov|dec|IAN|FEB|MAR|APR|MAI|IUN|IUL|AUG|SEP|OCT|NOI|NOV|DEC|Ian|Feb|Mar|Apr|Mai|Iun|Iul|Aug|Sep|Oct|Noi|Nov|Dec)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearSkPattern = RePattern(r"^[ \t\n\r]*(jan|feb|mar|apr|máj|maj|jún|jun|júl|jul|aug|sep|okt|nov|dec|JAN|FEB|MAR|APR|MÁJ|MAJ|JÚN|JUN|JÚL|JUL|AUG|SEP|OKT|NOV|DEC|Jan|Feb|Mar|Apr|Máj|Maj|Jún|Jun|Júl|Jul|Aug|Sep|Okt|Nov|Dec)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")
monthyearSlPattern = RePattern(r"^[ \t\n\r]*(jan|feb|mar|apr|maj|jun|jul|avg|sep|okt|nov|dec|JAN|FEB|MAR|APR|MAJ|JUN|JUL|AVG|SEP|OKT|NOV|DEC|Jan|Feb|Mar|Apr|Maj|Jun|Jul|Avg|Sep|Okt|Nov|Dec)[^0-9]+([0-9]{1,2}|[0-9]{4})[ \t\n\r]*$")

# TR1-only patterns, only allow space separators, no all-CAPS month name, only 2 or 4 digit years
dateLongUkTR1Pattern = RePattern(r"^[ \t\n\r]*(\d|\d{2,2}) (January|February|March|April|May|June|July|August|September|October|November|December) (\d{2,2}|\d{4,4})[ \t\n\r]*$")
dateShortUkTR1Pattern = RePattern(r"^[ \t\n\r]*(\d|\d{2,2}) (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) (\d{2,2}|\d{4,4})[ \t\n\r]*$")
dateLongUsTR1Pattern = RePattern(r"^[ \t\n\r]*(January|February|March|April|May|June|July|August|September|October|November|December) (\d|\d{2,2}), (\d{2,2}|\d{4,4})[ \t\n\r]*$")
dateShortUsTR1Pattern = RePattern(r"^[ \t\n\r]*(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) (\d|\d{2,2}), (\d{2,2}|\d{4,4})[ \t\n\r]*$")
daymonthLongEnTR1Pattern = RePattern(r"^[ \t\n\r]*(\d|\d{2,2}) (January|February|March|April|May|June|July|August|September|October|November|December)[ \t\n\r]*$")
daymonthShortEnTR1Pattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})\s+(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[ \t\n\r]*$")
monthdayLongEnTR1Pattern = RePattern(r"^[ \t\n\r]*(January|February|March|April|May|June|July|August|September|October|November|December) (\d|\d{2,2})[ \t\n\r]*$")
monthdayShortEnTR1Pattern = RePattern(r"^[ \t\n\r]*(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s+([0-9]{1,2})[A-Za-z]{0,2}[ \t\n\r]*$")
monthyearShortEnTR1Pattern = RePattern(r"^[ \t\n\r]*(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s+([0-9]{2}|[0-9]{4})[ \t\n\r]*$")
monthyearLongEnTR1Pattern = RePattern(r"^[ \t\n\r]*(January|February|March|April|May|June|July|August|September|October|November|December)\s+([0-9]{2}|[0-9]{4})[ \t\n\r]*$")
yearmonthShortEnTR1Pattern = RePattern(r"^[ \t\n\r]*([0-9]{2}|[0-9]{4})\s+(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[ \t\n\r]*$")
yearmonthLongEnTR1Pattern = RePattern(r"^[ \t\n\r]*([0-9]{2}|[0-9]{4})\s+(January|February|March|April|May|June|July|August|September|October|November|December)[ \t\n\r]*$")

erayearmonthjpPattern = RePattern(r"^[\s ]*(明治|明|大正|大|昭和|昭|平成|平|令和|令)[\s ]*([0-9０-９]{1,2}|元)[\s ]*(年)[\s ]*([0-9０-９]{1,2})[\s ]*(月)[\s ]*$")
erayearmonthdayjpPattern = RePattern(r"^[\s ]*(明治|明|大正|大|昭和|昭|平成|平|令和|令)[\s ]*([0-9０-９]{1,2}|元)[\s ]*(年)[\s ]*([0-9０-９]{1,2})[\s ]*(月)[\s ]*([0-9０-９]{1,2})[\s ]*(日)[\s ]*$")
yearmonthcjkPattern = RePattern(r"^[\s ]*([0-9０-９]{1,2}|[0-9０-９]{4})[\s ]*(年)[\s ]*([0-9０-９]{1,2})[\s ]*(月)[\s ]*$")
yearmonthdaycjkPattern = RePattern(r"^[\s ]*([0-9０-９]{1,2}|[0-9０-９]{4})[\s ]*(年)[\s ]*([0-9０-９]{1,2})[\s ]*(月)[\s ]*([0-9０-９]{1,2})[\s ]*(日)[\s ]*$")

monthyearPattern = RePattern(r"^[ \t\n\r]*([0-9]{1,2})[^0-9]+([0-9]{4}|[0-9]{1,2})[ \t\n\r]*$")
yearmonthPattern = RePattern(r"^[ \t\n\r]*([0-9]{4}|[0-9]{1,2})[^0-9]+([0-9]{1,2})[^0-9]*$")
yearmonthdayPattern = RePattern(r"^[ \t\n\r]*([0-9]{4}|[0-9]{1,2})[^0-9]+([0-9]{1,2})[^0-9]+([0-9]{1,2})[^0-9]*$")

zeroDashPattern = RePattern(r"^[ \t\n\r]*([-]|\u002D|\u002D|\u058A|\u05BE|\u2010|\u2011|\u2012|\u2013|\u2014|\u2015|\uFE58|\uFE63|\uFF0D)[ \t\n\r]*$")
numDotDecimalPattern = RePattern(r"^[ \t\n\r]*[0-9]{1,3}([, \xA0]?[0-9]{3})*(\.[0-9]+)?[ \t\n\r]*$")
numDotDecimalTR4Pattern = RePattern(r"^[ \t\n\r]*[, \xA00-9]*(\.[ \xA00-9]+)?[ \t\n\r]*$")
numDotDecimalAposPattern = RePattern(r"^[ \t\n\r]*[,'`´’′ \u00a00-9]*(\.[ \u00a00-9]+)?[ \t\n\r]*$")
numDotDecimalInPattern = RePattern(r"^(([0-9]{1,2}[, \xA0])?([0-9]{2}[, \xA0])*[0-9]{3})([.][0-9]+)?$|^([0-9]+)([.][0-9]+)?$")
numCommaDecimalPattern = RePattern(r"^[ \t\n\r]*[0-9]{1,3}([. \xA0]?[0-9]{3})*(,[0-9]+)?[ \t\n\r]*$")
numCommaDecimalTR4Pattern = RePattern(r"^[ \t\n\r]*[\. \xA00-9]*(,[ \xA00-9]+)?[ \t\n\r]*$")
numCommaDecimalAposPattern = RePattern(r"^[ \t\n\r]*[\.'`´’′ \u00a00-9]*(,[ \u00a00-9]+)?[ \t\n\r]*$")
numUnitDecimalPattern = RePattern(r"^([0]|([1-9][0-9]{0,2}([.,\uFF0C\uFF0E]?[0-9]{3})*))[^0-9,.\uFF0C\uFF0E]+([0-9]{1,2})[^0-9,.\uFF0C\uFF0E]*$")
numUnitDecimalInPattern = RePattern(r"^(([0-9]{1,2}[, \xA0])?([0-9]{2}[, \xA0])*[0-9]{3})([^0-9]+)([0-9]{1,2})([^0-9]*)$|^([0-9]+)([^0-9]+)([0-9]{1,2})([^0-9]*)$")
numUnitDecimalTR4Pattern = RePattern(r"^([0-9０-９\.,，]+)([^0-9０-９\.,，][^0-9０-９]*)([0-9０-９]{1,2})[^0-9０-９]*$")
numUnitDecimalAposPattern = RePattern(r"^([0-9０-９\.,，'`´’′＇]+)([^0-9０-９\.,，'`´’′＇][^0-9０-９]*)([0-9０-９]{1,2})[^0-9０-９]*$")
numCommaPattern = RePattern(r"^[ \t\n\r]*[0-9]+(,[0-9]+)?[ \t\n\r]*$")
numCommaDotPattern = RePattern(r"^[ \t\n\r]*[0-9]{1,3}(,[0-9]{3,3})*([.][0-9]+)?[ \t\n\r]*$")
numDashPattern = RePattern(r"^[ \t\n\r]*-[ \t\n\r]*$")
numDotCommaPattern = RePattern(r"^[ \t\n\r]*[0-9]{1,3}([.][0-9]{3,3})*(,[0-9]+)?[ \t\n\r]*$")
numSpaceDotPattern = RePattern(r"^[ \t\n\r]*[0-9]{1,3}([ \xA0][0-9]{3,3})*([.][0-9]+)?[ \t\n\r]*$")
numSpaceCommaPattern = RePattern(r"^[ \t\n\r]*[0-9]{1,3}([ \xA0][0-9]{3,3})*(,[0-9]+)?[ \t\n\r]*$")

numCanonicalizationPattern = RePattern(r"^[ \t\n\r]*0*([1-9][0-9]*)?(([.]0*)[ \t\n\r]*$|([.][0-9]*[1-9])0*[ \t\n\r]*$|[ \t\n\r]*$)")

monthnumber = {# english
               "january":1, "february":2, "march":3, "april":4, "may":5, "june":6,
               "july":7, "august":8, "september":9, "october":10, "november":11, "december":12,
               "jan":1, "feb":2, "mar":3, "apr":4, "may":5, "jun":6,
               "jul":7, "aug":8, "sep":9, "oct":10, "nov":11, "dec":12,
               # bulgarian
               "ян":1, "фев":2, "мар":3, "апр":4, "май":5, "маи":5, "юни":6,
               "юли":7, "авг":8, "сеп":9, "окт":10, "ное":11, "дек":12,
               # danish
               "jan":1, "feb":2, "mar": 3, "apr":4, "maj":5, "jun":6,
               "jul":7, "aug":8, "sep":9, "okt":10, "nov":11, "dec":12,
               # de: german
               "jan":1, "jän":1, "jaen":1, "feb":2, "mär":3, "maer":3, "mar":3,"apr":4,
               "mai":5, "jun":6, "jul":7, "aug":8, "sep":9, "okt":10, "nov":11, "dez":12,
               # el: greek
               "ιαν":1, "ίαν":1, "iαν":1, "φεβ":2, "μάρ":3, "μαρ":3,
               "απρ":4, "άπρ":4, "απρ":4, "aπρ":4, "αρίλ":4, "άρίλ":4, "αριλ":4, "άριλ":4, "άριλ":4, "αριλ":4, "aρίλ":4, "aριλ":4,
               "μαΐ":5, "μαι":5, "μάι":5, "μαϊ":5, "μάϊ":5, "ΜΑΪ́".lower():5, # ΜΑΪ́ has combining diacritical marks not on lower case pattern
               "ιούν":6, "ίούν":6, "ίουν":6, "ιουν":6, "ιουν":6, "ιουν":6, "iούν":6, "iουν":6,
               "ιούλ":7, "ίούλ":7, "ίουλ":7, "ίουλ":7, "ιουλ":7, "iούλ":7, "iουλ":7,
               "αύγ":8, "αυγ":8,
               "σεπ":9, "οκτ":10, "όκτ":10, "oκτ":10, "νοέ":11, "νοε":11, "δεκ":12,
               # es: spanish (differences)
               "ene":1, "abr":4, "ago":8, "dic":12,
               # et: estonian (differences)
               "jaan":1, "veebr":2, "märts":3, "marts":3, "mai":5, "juuni":6, "juuli":7, "sept":9, "okt":10, "dets":12,
               # fr: french (differences)
               "janv":1, "févr":2, "fevr":2, "mars":3, "avr":4, "mai":5, "juin":6, "juil":7, "août":8, "aout":8, "déc":12,
               # hu: hungary (differences)
               "márc":3, "marc":3, "ápr":4, "máj":5, "maj":5, "jún":6, "jun":6, "júl":7, "jul":7, "szept":9, "okt":10,
               # it: italy (differences)
               "gen":1, "mag":5, "giu":6, "lug":7, "ago":8, "set":9, "ott":10, "dic":12,
               # lv: latvian (differences)
               "janv":1, "febr":2, "marts":3, "maijs":5, "jūn":6, "jūl":7, "okt":10,
               # nl: dutch (differences)
               "maa":3, "mrt":3, "mei":5,
               # no: norway
               "mai":5, "des":12,
               # pt: portugese (differences)
               "fev":2, "ago":8, "set":9, "out":10, "dez":12,
               # ro: romanian (differences)
               "ian":1, "iun":6, "iul":7, "noi":11,
               # sk: skovak (differences)
               "máj":5, "maj":5, "jún":6, "júl":7,
               # sl: sloveniabn
               "avg":8,
               }

monthnumbercs = {"ledna":1, "leden":1, "lednu":1, "února":2, "unora":2, "únoru":2, "unoru":2, "únor":2, "unor":2,
                 "března":3, "brezna":3, "březen":3, "brezen":3, "březnu":3, "breznu":3, "dubna":4, "duben":4, "dubnu":4,
                 "května":5, "kvetna":5, "květen":5, "kveten":5, "květnu":5, "kvetnu":5,
                "června":6, "cervna":6, "červnu":6, "cervnu":6, "července":7, "cervence":7,
                "červen":6, "cerven":6, "červenec":7, "cervenec":7, "červenci":7, "cervenci":7,
                "srpna":8, "srpen":8, "srpnu":8, "září":9, "zari":9,
                "října":10, "rijna":10, "říjnu":10, "rijnu":10, "říjen":10, "rijen":10, "listopadu":11, "listopad":11,
                "prosince":12, "prosinec":12, "prosinci":12,
                "led":1, "úno":2, "uno":2, "bře":3, "bre":3, "dub":4, "kvě":5, "kve":5,
                "čvn":6, "cvn":6, "čvc":7, "cvc":7, "srp":8, "zář":9, "zar":9,
                "říj":10, "rij":10, "lis":11, "pro":12
                }

monthnumbercy = {"ion":1, "chwe":2, "maw":3, "faw":3, "ebr":4, "mai":5, "fai":5, "meh":6, "feh":6, "gor":7, "ngor":7, "aws":8, "med":9, "fed":9, "hyd":10, "tach":11, "dach":11, "nhach":11, "thach":11, "rhag":12, "rag":12}

monthnumberfi = {"tam":1, "hel":2, "maa":3, "huh":4, "tou":5, "kes":6, "hei":7, "elo":8, "syy":9, "lok":10, "mar":11, "jou":12}

monthnumberhr = {"sij":1, "velj":2, "ožu":3, "ozu":3, "tra":4, "svi":5, "lip":6, "srp":7, "kol":8, "ruj":9, "lis":10, "stu":11, "pro":12}

monthnumberlt = {"sau":1, "vas":2, "kov":3, "bal":4, "geg":5, "bir":6, "lie":7, "rugp":8, "rgp":8, "rugs":9, "rgs":9, "spa":10, "spl":10, "lap":11, "gru":12, "grd":12}

monthnumberpl = {"sty":1, "lut":2, "mar":3, "kwi":4, "maj":5, "cze":6, "lip":7, "sie":8, "wrz":9, "paź":10, "paz":10, "lis":11, "gru":12}

monthnumberroman = {"i":1, "ii":2, "iii":3, "iv":4, "v":5, "vi":6, "vii":7, "viii":8, "ix":9, "x":10, "xi":11, "xii":12}

maxDayInMo = {"01": "31", "02": "29", "03": "31", "04": "30", "05": "31", "06": "30",
              "07": "31", "08": "31", "09": "30", "10": "31", "11": "30", "12":"31",
              1: "31", 2: "29", 3: "31", 4: "30", 5: "31", 6: "30",
              7: "31", 8: "31", 9: "30", 10: "31", 11: "30", 12:"31"}
gLastMoDay = [31,28,31,30,31,30,31,31,30,31,30,31]

gregorianHindiMonthNumber = {
                "\u091C\u0928\u0935\u0930\u0940": "01",
                "\u092B\u0930\u0935\u0930\u0940": "02",
                "\u092E\u093E\u0930\u094D\u091A": "03",
                "\u0905\u092A\u094D\u0930\u0948\u0932": "04",
                "\u092E\u0908": "05",
                "\u091C\u0942\u0928": "06",
                "\u091C\u0941\u0932\u093E\u0908": "07",
                "\u0905\u0917\u0938\u094D\u0924": "08",
                "\u0938\u093F\u0924\u0902\u092C\u0930": "09",
                "\u0905\u0915\u094D\u0924\u0942\u092C\u0930": "10",
                "\u0928\u0935\u092E\u094D\u092C\u0930": "11",
                "\u0926\u093F\u0938\u092E\u094D\u092C\u0930": "12"
                }

sakaMonthNumber = {
                "Chaitra":1, "\u091A\u0948\u0924\u094D\u0930":1,
                "Vaisakha":2, "Vaishakh":2, "Vai\u015B\u0101kha":2, "\u0935\u0948\u0936\u093E\u0916":2, "\u092C\u0948\u0938\u093E\u0916":2,
                "Jyaishta":3, "Jyaishtha":3, "Jyaistha":3, "Jye\u1E63\u1E6Dha":3, "\u091C\u094D\u092F\u0947\u0937\u094D\u0920":3,
                "Asadha":4, "Ashadha":4, "\u0100\u1E63\u0101\u1E0Dha":4, "\u0906\u0937\u093E\u0922":4, "\u0906\u0937\u093E\u0922\u093C":4,
                "Sravana":5, "Shravana":5, "\u015Ar\u0101va\u1E47a":5, "\u0936\u094D\u0930\u093E\u0935\u0923":5, "\u0938\u093E\u0935\u0928":5,
                "Bhadra":6, "Bhadrapad":6, "Bh\u0101drapada":6, "Bh\u0101dra":6, "Pro\u1E63\u1E6Dhapada":6, "\u092D\u093E\u0926\u094D\u0930\u092A\u0926":6, "\u092D\u093E\u0926\u094B":6,
                "Aswina":7, "Ashwin":7, "Asvina":7, "\u0100\u015Bvina":7, "\u0906\u0936\u094D\u0935\u093F\u0928":7,
                "Kartiak":8, "Kartik":8, "Kartika":8, "K\u0101rtika":8, "\u0915\u093E\u0930\u094D\u0924\u093F\u0915":8,
                "Agrahayana":9,"Agrah\u0101ya\u1E47a":9,"Margashirsha":9, "M\u0101rga\u015B\u012Br\u1E63a":9, "\u092E\u093E\u0930\u094D\u0917\u0936\u0940\u0930\u094D\u0937":9, "\u0905\u0917\u0939\u0928":9,
                "Pausa":10, "Pausha":10, "Pau\u1E63a":10, "\u092A\u094C\u0937":10,
                "Magha":11, "Magh":11, "M\u0101gha":11, "\u092E\u093E\u0918":11,
                "Phalguna":12, "Phalgun":12, "Ph\u0101lguna":12, "\u092B\u093E\u0932\u094D\u0917\u0941\u0928":12,
                }
sakaMonthPattern = RePattern(r"(C\S*ait|\u091A\u0948\u0924\u094D\u0930)|"
                              r"(Vai|\u0935\u0948\u0936\u093E\u0916|\u092C\u0948\u0938\u093E\u0916)|"
                              r"(Jy|\u091C\u094D\u092F\u0947\u0937\u094D\u0920)|"
                              r"(dha|\u1E0Dha|\u0906\u0937\u093E\u0922|\u0906\u0937\u093E\u0922\u093C)|"
                              r"(vana|\u015Ar\u0101va\u1E47a|\u0936\u094D\u0930\u093E\u0935\u0923|\u0938\u093E\u0935\u0928)|"
                              r"(Bh\S+dra|Pro\u1E63\u1E6Dhapada|\u092D\u093E\u0926\u094D\u0930\u092A\u0926|\u092D\u093E\u0926\u094B)|"
                              r"(in|\u0906\u0936\u094D\u0935\u093F\u0928)|"
                              r"(K\S+rti|\u0915\u093E\u0930\u094D\u0924\u093F\u0915)|"
                              r"(M\S+rga|Agra|\u092E\u093E\u0930\u094D\u0917\u0936\u0940\u0930\u094D\u0937|\u0905\u0917\u0939\u0928)|"
                              r"(Pau|\u092A\u094C\u0937)|"
                              r"(M\S+gh|\u092E\u093E\u0918)|"
                              r"(Ph\S+lg|\u092B\u093E\u0932\u094D\u0917\u0941\u0928)")
sakaMonthLength = (30,31,31,31,31,31,30,30,30,30,30,30) # Chaitra has 31 days in Gregorian leap year
sakaMonthOffset = ((3,22,0),(4,21,0),(5,22,0),(6,22,0),(7,23,0),(8,23,0),(9,23,0),(10,23,0),(11,22,0),(12,22,0),(1,21,1),(2,20,1))

# common helper functions
def checkDate(y,m,d):
    try:
        datetime(int(y), int(m), int(d))
        return True
    except (ValueError):
        return False

def z2(arg):   # zero pad to 2 digits
    if arg is not None and len(arg) == 1:
        return '0' + arg
    return arg

def yr4(arg):   # zero pad to 4 digits
    if arg is not None:
        if len(arg) == 1:
            return '200' + arg
        elif len(arg) == 2:
            return '20' + arg
    return arg

def yrin(arg, _mo, _day):   # zero pad to 4 digits
    if arg is not None and len(arg) == 2:
        if arg > '21' or (arg == '21' and _mo >= 10 and _day >= 11):
            return '19' + arg
        else:
            return '20' + arg
    return arg

devanagariDigitsTrTable = dict((0x966 + i, ord("0") + i) for i in range(10))
def devanagariDigitsToNormal(devanagariDigits):
    return devanagariDigits.translate(devanagariDigitsTrTable)

jpDigitsTrTable = dict((0xFF10 + i, ord("0") + i) for i in range(10))
def jpDigitsToNormal(jpDigits):
    return jpDigits.translate(jpDigitsTrTable)

def sakaToGregorian(sYr, sMo, sDay): # replacement of plug-in sakaCalendar.py which is LGPL-v3 licensed
    gYr = sYr + 78  # offset from Saka to Gregorian year
    sStartsInLeapYr = gYr % 4 == 0 and (not gYr % 100 == 0 or gYr % 400 == 0) # Saka yr starts in leap yr
    if gYr < 0:
        raise ValueError(_("Saka calendar year not supported: {0} {1} {2} "), sYr, sMo, sDay)
    if  sMo < 1 or sMo > 12:
        raise ValueError(_("Saka calendar month error: {0} {1} {2} "), sYr, sMo, sDay)
    sMoLength = sakaMonthLength[sMo - 1]
    if sStartsInLeapYr and sMo == 1:
        sMoLength += 1 # Chaitra has 1 extra day when starting in gregorian leap years
    if sDay < 1 or sDay > sMoLength:
        raise ValueError(_("Saka calendar day error: {0} {1} {2} "), sYr, sMo, sDay)
    gMo, gDayOffset, gYrOffset = sakaMonthOffset[sMo - 1] # offset Saka to Gregorian by Saka month
    if sStartsInLeapYr and sMo == 1:
        gDayOffset -= 1 # Chaitra starts 1 day earlier when starting in Gregorian leap years
    gYr += gYrOffset # later Saka months offset into next Gregorian year
    gMoLength = gLastMoDay[gMo - 1] # month length (days in month)
    if gMo == 2 and gYr % 4 == 0 and (not gYr % 100 == 0 or gYr % 400 == 0): # does Phalguna (Feb) end in a Gregorian leap year?
        gMoLength += 1 # Phalguna (Feb) is in a Gregorian leap year (Feb has 29 days)
    gDay = gDayOffset + sDay - 1
    if gDay > gMoLength: # overflow from Gregorial month of start of Saka month to next Gregorian month
        gDay -= gMoLength
        gMo += 1
        if gMo == 13:  # overflow from Gregorian year of start of Saka year to following Gregorian year
            gMo = 1
            gYr += 1
    return (gYr, gMo, gDay)

# see: http://www.i18nguy.com/l10n/emperor-date.html
eraStart = {'令和': 2018,
            '令': 2018,
            '\u5E73\u6210': 1988,
            '\u5E73': 1988,
            '\u660E\u6CBB': 1867,
            '\u660E': 1867,
            '\u5927\u6B63': 1911,
            '\u5927': 1911,
            '\u662D\u548C': 1925,
            '\u662D': 1925
            }

def eraYear(era,yr):
    return eraStart[era] + (1 if yr == '元' else int(yr))

def canonicalNumber(n):
    m = numCanonicalizationPattern.match(n)
    if m:
        return (m.group(1) or "0") + (m.group(4) or "")
    return m

# transforms

def booleanfalse(arg):
    return 'false'

def booleantrue(arg):
    return 'true'

def dateslashus(arg):
    m = dateslashPattern.match(arg)
    if m and m.lastindex == 3:
        return "{0}-{1}-{2}".format(yr4(m.group(3)), z2(m.group(1)), z2(m.group(2)))
    raise XPathContext.FunctionArgType(0,"xs:date")

def dateslasheu(arg):
    m = dateslashPattern.match(arg)
    if m and m.lastindex == 3:
        return "{0}-{1}-{2}".format(yr4(m.group(3)), z2(m.group(2)), z2(m.group(1)))
    raise XPathContext.FunctionArgType(0,"xs:date")

def datedotus(arg):
    m = datedotPattern.match(arg)
    if m and m.lastindex == 3:
        return "{0}-{1}-{2}".format(yr4(m.group(3)), z2(m.group(1)), z2(m.group(2)))
    raise XPathContext.FunctionArgType(0,"xs:date")

def datedoteu(arg):
    m = datedotPattern.match(arg)
    if m and m.lastindex == 3:
        return "{0}-{1}-{2}".format(yr4(m.group(3)), z2(m.group(2)), z2(m.group(1)))
    raise XPathContext.FunctionArgType(0,"xs:date")

def datelongusTR1(arg):
    return datedaymonthyear(arg, dateLongUsTR1Pattern, dy=2, mo=1, yr=3)

def dateshortusTR1(arg):
    return datedaymonthyear(arg, dateShortUsTR1Pattern, dy=2, mo=1, yr=3)

def datelongukTR1(arg):
    return datedaymonthyear(arg, dateLongUkTR1Pattern)

def dateshortukTR1(arg):
    return datedaymonthyear(arg, dateShortUkTR1Pattern)

def datelongeu(arg):
    return datedaymonthyear(arg, dateEuPattern)

def datedaymonthTR2(arg):
    m = daymonthPattern.match(arg)
    if m and m.lastindex == 2:
        mo = z2(m.group(2))
        day = z2(m.group(1))
        if "01" <= day <= maxDayInMo.get(mo, "00"):
            return "--{0}-{1}".format(mo, day)
    raise XPathContext.FunctionArgType(0,"xs:gMonthDay")

def datemonthday(arg):
    m = monthdayPattern.match(arg)
    if m and m.lastindex == 2:
        mo = z2(m.group(1))
        day = z2(m.group(2))
        if "01" <= day <= maxDayInMo.get(mo, "00"):
            return "--{0}-{1}".format(mo, day)
    raise XPathContext.FunctionArgType(0,"xs:gMonthDay")

def datedaymonthSlashTR1(arg):
    m = daymonthslashPattern.match(arg)
    if m and m.lastindex == 2:
        mo = z2(m.group(2))
        day = z2(m.group(1))
        return "--{0}-{1}".format(mo, day)
    raise XPathContext.FunctionArgType(0,"xs:gMonthDay")

def datemonthdaySlashTR1(arg):
    m = monthdayslashPattern.match(arg)
    if m and m.lastindex == 2:
        mo = z2(m.group(1))
        day = z2(m.group(2))
        return "--{0}-{1}".format(mo, day)
    raise XPathContext.FunctionArgType(0,"xs:gMonthDay")

def datedaymonth(arg, pattern, moTbl=monthnumber, dy=1, mo=2, lastindex=2):
    m = pattern.match(arg)
    try:
        if m and m.lastindex == lastindex:
            _day = z2(m.group(dy))
            _mo = m.group(mo)
            _mo = moTbl[_mo.lower()] if moTbl else int(_mo)
            if "01" <= _day <= maxDayInMo.get(_mo, "00"):
                return "--{0:02}-{1}".format(_mo, _day)
    except KeyError:
        pass
    raise XPathContext.FunctionArgType(0,"xs:gMonthDay")

def datedaymonthbg(arg):
    return datedaymonth(arg, daymonthBgPattern)

def datedaymonthcs(arg):
    return datedaymonth(arg, daymonthCsPattern, monthnumbercs)

def datedaymonthcy(arg):
    return datedaymonth(arg, daymonthCyPattern, monthnumbercy)

def datedaymonthde(arg):
    return datedaymonth(arg, daymonthDePattern)

def datedaymonthdk(arg):
    m = daymonthDkPattern.match(arg)
    if m and m.lastindex == 4:
        day = z2(m.group(1))
        mon3 = m.group(2).lower()
        monEnd = m.group(3)
        monPer = m.group(4)
        if (mon3 in monthnumber):
            mo = monthnumber[mon3]
            if (((not monEnd and not monPer) or
                 (not monEnd and monPer) or
                 (monEnd and not monPer)) and
                "01" <= day <= maxDayInMo.get(mo, "00")):
                return "--{0:02}-{1}".format(mo, day)
    raise XPathContext.FunctionArgType(0,"xs:gMonthDay")

def datedaymonthel(arg):
    return datedaymonth(arg, daymonthElPattern)

def datedaymonthen(arg):
    return datedaymonth(arg, daymonthEnPattern)

def datedaymonthShortEnTR1(arg):
    return datedaymonth(arg, daymonthShortEnTR1Pattern, dy=1, mo=2)

def datedaymonthLongEnTR1(arg):
    return datedaymonth(arg, daymonthLongEnTR1Pattern, dy=1, mo=2)

def datemonthdayen(arg):
    return datedaymonth(arg, monthdayEnPattern, dy=2, mo=1)

def datemonthdayLongEnTR1(arg):
    return datedaymonth(arg, monthdayLongEnTR1Pattern, dy=2, mo=1)

def datemonthdayShortEnTR1(arg):
    return datedaymonth(arg, monthdayShortEnTR1Pattern, dy=2, mo=1)

def datedaymonthes(arg):
    return datedaymonth(arg, daymonthEsPattern)

def datedaymonthet(arg):
    return datedaymonth(arg, daymonthEtPattern)

def datedaymonthfi(arg):
    return datedaymonth(arg, daymonthFiPattern, monthnumberfi)

def datedaymonthfr(arg):
    return datedaymonth(arg, daymonthFrPattern)

def datedaymonthhr(arg):
    return datedaymonth(arg, daymonthHrPattern, monthnumberhr)

def datemonthdayhu(arg):
    return datedaymonth(arg, monthdayHuPattern, dy=2, mo=1)

def datedaymonthit(arg):
    return datedaymonth(arg, daymonthItPattern)

def datemonthdaylt(arg):
    return datedaymonth(arg, monthdayLtPattern, monthnumberlt, dy=2, mo=1)

def datedaymonthlv(arg):
    return datedaymonth(arg, daymonthLvPattern)

def datedaymonthnl(arg):
    return datedaymonth(arg, daymonthNlPattern)

def datedaymonthno(arg):
    return datedaymonth(arg, daymonthNoPattern)

def datedaymonthpl(arg):
    return datedaymonth(arg, daymonthPlPattern, monthnumberpl)

def datedaymonthpt(arg):
    return datedaymonth(arg, daymonthPtPattern)

def datedaymonthroman(arg):
    return datedaymonth(arg, daymonthRomanPattern, monthnumberroman)

def datedaymonthro(arg):
    return datedaymonth(arg, daymonthRoPattern)

def datedaymonthsk(arg):
    return datedaymonth(arg, daymonthSkPattern)

def datedaymonthsl(arg):
    return datedaymonth(arg, daymonthSlPattern)

def datedaymonthyearTR2(arg):
    return datedaymonthyear(arg, daymonthyearPattern, None, dy=1, mo=2, yr=3)

def datedaymonthyearTR4(arg):
    return datedaymonthyear(arg.translate(devanagariDigitsTrTable), daymonthyearPattern, None, dy=1, mo=2, yr=3)

def datemonthdayyear(arg):
    return datedaymonthyear(arg, monthdayyearPattern, None, dy=2, mo=1, yr=3)

def datemonthyearTR3(arg):
    m = monthyearPattern.match(arg) # "(M)M*(Y)Y(YY)", with non-numeric separator,
    if m and m.lastindex == 2:
        _mo = z2(m.group(1))
        if "01" <= _mo <= "12":
            return "{0}-{1:2}".format(yr4(m.group(2)), _mo)
    raise XPathContext.FunctionArgType(0,"xs:gYearMonth")

def datemonthyearTR4(arg):
    m = monthyearPattern.match(arg.translate(devanagariDigitsTrTable)) # "(M)M*(Y)Y(YY)", with non-numeric separator,
    if m and m.lastindex == 2:
        _mo = z2(m.group(1))
        if "01" <= _mo <= "12":
            return "{0}-{1:2}".format(yr4(m.group(2)), _mo)
    raise XPathContext.FunctionArgType(0,"xs:gYearMonth")

def dateyearmonth(arg):
    m = yearmonthPattern.match(arg) # "(Y)Y(YY)*(M)M", with non-numeric separator,
    if m and m.lastindex == 2:
        _mo = z2(m.group(2))
        if "01" <= _mo <= "12":
            return "{0}-{1:2}".format(yr4(m.group(1)), _mo)
    raise XPathContext.FunctionArgType(0,"xs:gYearMonth")

def dateyearmonthTR4(arg):
    return dateyearmonth(arg.translate(jpDigitsTrTable))

def datemonthyear(arg, pattern, moTbl=monthnumber, mo=1, yr=2, lastindex=2):
    m = pattern.match(arg)
    try:
        if m and m.lastindex == lastindex:
            return "{0}-{1:02}".format(yr4(m.group(yr)), moTbl[m.group(mo).lower()])
    except KeyError:
        pass
    raise XPathContext.FunctionArgType(0,"xs:gYearMonth")

def datemonthyearbg(arg):
    return datemonthyear(arg, monthyearBgPattern)

def datemonthyearcs(arg):
    return datemonthyear(arg, monthyearCsPattern, monthnumbercs)

def datemonthyearcy(arg):
    return datemonthyear(arg, monthyearCyPattern, monthnumbercy)

def datemonthyearde(arg):
    return datemonthyear(arg, monthyearDePattern)


def datemonthyeardk(arg):
    m = monthyearDkPattern.match(arg)
    if m and m.lastindex == 4:
        mon3 = m.group(1).lower()
        monEnd = m.group(2)
        monPer = m.group(3)
        if mon3 in monthnumber and ((not monEnd and not monPer) or
                                    (not monEnd and monPer) or
                                    (monEnd and not monPer)):
            return "{0}-{1:02}".format(yr4(m.group(4)), monthnumber[mon3])
    raise XPathContext.FunctionArgType(0,"xs:gYearMonth")

def datemonthyearel(arg):
    return datemonthyear(arg, monthyearElPattern)

def datemonthyearen(arg):
    return datemonthyear(arg, monthyearEnPattern, mo=1, yr=2)

def datemonthyearShortEnTR1(arg):
    return datemonthyear(arg, monthyearShortEnTR1Pattern, mo=1, yr=2)

def datemonthyearLongEnTR1(arg):
    return datemonthyear(arg, monthyearLongEnTR1Pattern, mo=1, yr=2)

def datemonthyeares(arg):
    return datemonthyear(arg, monthyearEsPattern)

def dateyearmonthen(arg):
    return datemonthyear(arg, yearmonthEnPattern, mo=2, yr=1)

def datemonthyearet(arg):
    return datemonthyear(arg, monthyearEtPattern)

def datemonthyearfi(arg):
    return datemonthyear(arg, monthyearFiPattern, monthnumberfi)

def datemonthyearfr(arg):
    return datemonthyear(arg, monthyearFrPattern)

def datemonthyearhr(arg):
    return datemonthyear(arg, monthyearHrPattern, monthnumberhr)

def datemonthyearin(arg):
    m = monthyearInPattern.match(arg)
    try:
        return "{0}-{1}".format(yr4(devanagariDigitsToNormal(m.group(2))),
                                   gregorianHindiMonthNumber[m.group(1)])
    except (AttributeError, IndexError, KeyError):
        pass
    raise XPathContext.FunctionArgType(0,"xs:gYearMonth")

def datemonthyearit(arg):
    return datemonthyear(arg, monthyearItPattern)

def datemonthyearnl(arg):
    return datemonthyear(arg, monthyearNlPattern)

def datemonthyearno(arg):
    return datemonthyear(arg, monthyearNoPattern)

def datemonthyearpl(arg):
    return datemonthyear(arg, monthyearPlPattern, monthnumberpl)

def datemonthyearpt(arg):
    return datemonthyear(arg, monthyearPtPattern)

def datemonthyearroman(arg):
    return datemonthyear(arg, monthyearRomanPattern, monthnumberroman, mo=1, yr=6, lastindex=6)

def datemonthyearro(arg):
    return datemonthyear(arg, monthyearRoPattern)

def datemonthyearsk(arg):
    return datemonthyear(arg, monthyearSkPattern)

def datemonthyearsl(arg):
    return datemonthyear(arg, monthyearSlPattern)

def dateyearmonthhu(arg):
    return datemonthyear(arg, yearmonthHuPattern, mo=2, yr=1)

def dateyearmonthlt(arg):
    return datemonthyear(arg, yearmonthLtPattern, monthnumberlt, mo=2, yr=1)

def dateyearmonthlv(arg):
    return datemonthyear(arg, yearmonthLvPattern, mo=2, yr=1)

def dateyearmonthShortEnTR1(arg):
    return datemonthyear(arg, yearmonthShortEnTR1Pattern, mo=2, yr=1)

def dateyearmonthLongEnTR1(arg):
    return datemonthyear(arg, yearmonthLongEnTR1Pattern, mo=2, yr=1)

def datedaymonthyear(arg, pattern, moTbl=monthnumber, dy=1, mo=2, yr=3, lastindex=3):
    m = pattern.match(arg)
    try:
        if m and m.lastindex == lastindex:
            _yr = yr4(m.group(yr))
            _day = z2(m.group(dy))
            _mo = m.group(mo)
            _mo = moTbl[_mo.lower()] if moTbl else int(_mo)
            if checkDate(_yr, _mo, _day):
                return "{0}-{1:02}-{2}".format(_yr, _mo, _day)
    except KeyError:
        pass
    raise XPathContext.FunctionArgType(0,"xs:date")

def datedaymonthyearbg(arg):
    return datedaymonthyear(arg, daymonthyearBgPattern)

def datedaymonthyearcs(arg):
    return datedaymonthyear(arg, daymonthyearCsPattern, monthnumbercs)

def datedaymonthyearcy(arg):
    return datedaymonthyear(arg, daymonthyearCyPattern, monthnumbercy)

def datedaymonthyearde(arg):
    return datedaymonthyear(arg, daymonthyearDePattern)

def datedaymonthyeardk(arg):
    m = daymonthyearDkPattern.match(arg)
    if m and m.lastindex == 5:
        _yr = yr4(m.group(5))
        _day = z2(m.group(1))
        _mon3 = m.group(2).lower()
        _monEnd = m.group(3)
        _monPer = m.group(4)
        if _mon3 in monthnumber and ((not _monEnd and not _monPer) or
                                     (not _monEnd and _monPer) or
                                     (_monEnd and not _monPer)):
            _mo = monthnumber[_mon3]
            if checkDate(_yr, _mo, _day):
                return "{0}-{1:02}-{2}".format(_yr, _mo, _day)
    raise XPathContext.FunctionArgType(0,"xs:date")

def datedaymonthyearel(arg):
    return datedaymonthyear(arg, daymonthyearElPattern)

def datedaymonthyearen(arg):
    return datedaymonthyear(arg, daymonthyearEnPattern)

def datemonthdayyearen(arg):
    return datedaymonthyear(arg, monthdayyearEnPattern, dy=2, mo=1, yr=3)

def datedaymonthyeares(arg):
    return datedaymonthyear(arg, daymonthyearEsPattern)

def datedaymonthyearet(arg):
    return datedaymonthyear(arg, daymonthyearEtPattern)

def datedaymonthyearfi(arg):
    return datedaymonthyear(arg, daymonthyearFiPattern, monthnumberfi)

def datedaymonthyearfr(arg):
    return datedaymonthyear(arg, daymonthyearFrPattern)

def datedaymonthyearhr(arg):
    return datedaymonthyear(arg, daymonthyearHrPattern, monthnumberhr)

def dateyearmonthdayhu(arg):
    return datedaymonthyear(arg, yearmonthdayHuPattern, dy=3, mo=2, yr=1)

def datedaymonthyearin(arg, daymonthyearInPattern):
    m = daymonthyearInPattern.match(arg)
    try:
        _yr = yr4(devanagariDigitsToNormal(m.group(3)))
        _mo = gregorianHindiMonthNumber.get(m.group(2), devanagariDigitsToNormal(m.group(2)))
        _day = z2(devanagariDigitsToNormal(m.group(1)))
        if checkDate(_yr, _mo, _day):
            return "{0}-{1}-{2}".format(_yr, _mo, _day)
    except (AttributeError, IndexError, KeyError):
        pass
    raise XPathContext.FunctionArgType(0,"xs:date")

def datedaymonthyearinTR3(arg):
    return datedaymonthyearin(arg, daymonthyearInPatternTR3)

def datedaymonthyearinTR4(arg):
    return datedaymonthyearin(arg, daymonthyearInPatternTR4)

def datedaymonthyearit(arg):
    return datedaymonthyear(arg, daymonthyearItPattern)

def dateyeardaymonthlv(arg):
    return datedaymonthyear(arg, yeardaymonthLvPattern, dy=2, mo=3, yr=1)

def dateyearmonthdaylt(arg):
    return datedaymonthyear(arg, yearmonthdayLtPattern, monthnumberlt, dy=3, mo=2, yr=1)

def datedaymonthyearnl(arg):
    return datedaymonthyear(arg, daymonthyearNlPattern)

def datedaymonthyearno(arg):
    return datedaymonthyear(arg, daymonthyearNoPattern)

def datedaymonthyearpl(arg):
    return datedaymonthyear(arg, daymonthyearPlPattern, monthnumberpl)

def datedaymonthyearpt(arg):
    return datedaymonthyear(arg, daymonthyearPtPattern)

def datedaymonthyearroman(arg):
    return datedaymonthyear(arg, daymonthyearRomanPattern, monthnumberroman, dy=1, mo=2, yr=7, lastindex=7)

def datedaymonthyearro(arg):
    return datedaymonthyear(arg, daymonthyearRoPattern)

def datedaymonthyearsk(arg):
    return datedaymonthyear(arg, daymonthyearSkPattern)

def datedaymonthyearsl(arg):
    return datedaymonthyear(arg, daymonthyearSlPattern)

def calindaymonthyear(arg):
    m = daymonthyearInIndPattern.match(arg)
    try:
        # Transformation registry 3 requires use of pattern comparisons instead of exact transliterations
        #_mo = int(sakaMonthNumber[m.group(2)])
        # pattern approach
        _mo = sakaMonthPattern.search(m.group(2)).lastindex
        _day = int(devanagariDigitsToNormal(m.group(1)))
        _yr = int(devanagariDigitsToNormal(yrin(m.group(15), _mo, _day)))
        #sakaDate = [_yr, _mo, _day]
        #for pluginMethod in pluginClassMethods("SakaCalendar.ToGregorian"):  # LGPLv3 plugin (moved to examples/plugin)
        #    gregorianDate = pluginMethod(sakaDate)
        #    return "{0}-{1:02}-{2:02}".format(gregorianDate[0], gregorianDate[1], gregorianDate[2])
        #raise NotImplementedError (_("ixt:calindaymonthyear requires plugin sakaCalendar.py, please install plugin.  "))
        gregorianDate = sakaToGregorian(_yr, _mo, _day) # native implementation for Arelle
        return "{0}-{1:02}-{2:02}".format(gregorianDate[0], gregorianDate[1], gregorianDate[2])
    except (AttributeError, IndexError, KeyError, ValueError):
        pass
    raise XPathContext.FunctionArgType(0,"xs:date")

def dateerayearmonthdayjp(arg):
    m = erayearmonthdayjpPattern.match(jpDigitsToNormal(arg))
    if m and m.lastindex == 7:
        _yr = eraYear(m.group(1), m.group(2))
        _mo = z2(m.group(4))
        _day = z2(m.group(6))
        if checkDate(_yr, _mo, _day):
            return "{0}-{1}-{2}".format(_yr, _mo, _day)
    raise XPathContext.FunctionArgType(0,"xs:date")

def dateyearmonthday(arg):
    m = yearmonthdayPattern.match(arg.translate(jpDigitsTrTable)) # (Y)Y(YY)*MM*DD with kangu full-width numerals
    if m and m.lastindex == 3:
        _yr = yr4(m.group(1))
        _mo = z2(m.group(2))
        _day = z2(m.group(3))
        if checkDate(_yr, _mo, _day):
            return "{0}-{1}-{2}".format(_yr, _mo, _day)
    raise XPathContext.FunctionArgType(0,"xs:date")

def dateerayearmonthjp(arg):
    m = erayearmonthjpPattern.match(jpDigitsToNormal(arg))
    if m and m.lastindex == 5:
        _yr = eraYear(m.group(1), m.group(2))
        _mo = z2(m.group(4))
        if "01" <= _mo <= "12":
            return "{0}-{1}".format(_yr, _mo)
    raise XPathContext.FunctionArgType(0,"xs:gYearMonth")

def dateyearmonthdaycjk(arg):
    m = yearmonthdaycjkPattern.match(jpDigitsToNormal(arg))
    if m and m.lastindex == 6:
        _yr = yr4(m.group(1))
        _mo = z2(m.group(3))
        _day = z2(m.group(5))
        if checkDate(_yr, _mo, _day):
            return "{0}-{1}-{2}".format(_yr, _mo, _day)
    raise XPathContext.FunctionArgType(0,"xs:date")

def dateyearmonthcjk(arg):
    m = yearmonthcjkPattern.match(jpDigitsToNormal(arg))
    if m and m.lastindex == 4:
        _mo =  z2(m.group(3))
        if "01" <= _mo <= "12":
            return "{0}-{1}".format(yr4(m.group(1)), _mo)
    raise XPathContext.FunctionArgType(0,"xs:date")

def nocontent(arg):
    return ''

def numcommadecimal(arg):
    if numCommaDecimalPattern.match(arg):
        return arg.replace('.', '').replace(',', '.').replace(' ', '').replace('\u00A0', '')
    raise XPathContext.FunctionArgType(0,"ixt:nonNegativeDecimalType")

def numcommadecimalTR4(arg):
    if numCommaDecimalTR4Pattern.match(arg):
        result = arg.replace('.', '').replace(',', '.').replace(' ', '').replace('\u00A0', '')
        if decimalPattern.match(result):
            return canonicalNumber(result)
    raise XPathContext.FunctionArgType(0,"ixt:nonNegativeDecimalType")

def numcommadecimalApos(arg):
    if numCommaDecimalAposPattern.match(arg):
        result = arg.replace('.', '').replace('\'', '').replace('`', '').replace('´', '').replace('’', '').replace('′', '').replace(',', '.').replace(' ', '').replace('\u00A0', '')
        if decimalPattern.match(result):
            return canonicalNumber(result)
    raise XPathContext.FunctionArgType(0,"ixt:nonNegativeDecimalType")

def numcommadot(arg):
    if numCommaDotPattern.match(arg):
        return arg.replace(',', '')
    raise XPathContext.FunctionArgType(0,"ixt:numcommadot")

def numdash(arg):
    if numDashPattern.match(arg):
        return arg.replace('-','0')
    raise XPathContext.FunctionArgType(0,"ixt:numdash")

def numspacedot(arg):
    if numSpaceDotPattern.match(arg):
        return arg.replace(' ', '').replace('\u00A0', '')
    raise XPathContext.FunctionArgType(0,"ixt:numspacedot")

def numcomma(arg):
    if numCommaPattern.match(arg):
        return arg.replace(',', '.')
    raise XPathContext.FunctionArgType(0,"ixt:numcomma")

def numdotcomma(arg):
    if numDotCommaPattern.match(arg):
        return arg.replace('.', '').replace(',', '.')
    raise XPathContext.FunctionArgType(0,"ixt:numdotcomma")

def numspacecomma(arg):
    if numSpaceCommaPattern.match(arg):
        return arg.replace(' ', '').replace('\u00A0', '').replace(',', '.')
    raise XPathContext.FunctionArgType(0,"ixt:numspacecomma")

def zerodash(arg):
    if zeroDashPattern.match(arg):
        return '0'
    raise XPathContext.FunctionArgType(0,"ixt:zerodashType")

def fixedzero(arg):
    return '0'

def numdotdecimal(arg):
    if numDotDecimalPattern.match(arg):
        return arg.replace(',', '').replace(' ', '').replace('\u00A0', '')
    raise XPathContext.FunctionArgType(0,"ixt:numdotdecimalType")

def numdotdecimalTR4(arg):
    if numDotDecimalTR4Pattern.match(arg):
        result = arg.replace(',', '').replace(' ', '').replace('\u00A0', '')
        if decimalPattern.match(result):
            return canonicalNumber(result)
    raise XPathContext.FunctionArgType(0,"ixt:numdotdecimalType")

def numdotdecimalApos(arg):
    if numDotDecimalAposPattern.match(arg):
        result = arg.replace(',', '').replace('\'', '').replace('`', '').replace('´', '').replace('’', '').replace('′', '').replace(' ', '').replace('\u00A0', '')
        if decimalPattern.match(result):
            return canonicalNumber(result)
    raise XPathContext.FunctionArgType(0,"ixt:numdotdecimalType")

def numdotdecimalin(arg):
    m = numDotDecimalInPattern.match(arg)
    if m:
        m2 = [g for g in m.groups() if g is not None]
        if m2[-1].startswith("."):
            fract = m2[-1]
        else:
            fract = ""
        return m2[0].replace(',','').replace(' ','').replace('\xa0','') + fract
    raise XPathContext.FunctionArgType(1,"ixt:numdotdecimalinType")

def numdotdecimalinTR4(arg):
    return canonicalNumber(numdotdecimalin(arg))

def numunitdecimal(arg):
    # remove comma (normal), full-width comma, and stops (periods)
    m = numUnitDecimalPattern.match(jpDigitsToNormal(arg))
    if m and m.lastindex > 1:
        return m.group(1).replace('.','').replace(',','').replace('\uFF0C','').replace('\uFF0E','') + '.' + z2(m.group(m.lastindex))
    raise XPathContext.FunctionArgType(1,"ixt:nonNegativeDecimalType")

def numunitdecimalTR4(arg):
    # remove comma (normal), full-width comma, and stops (periods)
    m = numUnitDecimalTR4Pattern.match(jpDigitsToNormal(arg))
    if m and m.lastindex > 1:
        majorValue = m.group(1).replace('.','').replace(',','').replace('\uFF0C','').replace('\uFF0E','')
        fractValue = z2(m.group(m.lastindex))
        if len(majorValue) > 0 and len(fractValue) > 0:
            return canonicalNumber(majorValue + '.' + fractValue)
    raise XPathContext.FunctionArgType(1,"ixt:nonNegativeDecimalType")

def numunitdecimalApos(arg):
    # remove comma (normal), full-width comma, and stops (periods)
    m = numUnitDecimalAposPattern.match(jpDigitsToNormal(arg))
    if m and m.lastindex > 1:
        majorValue = m.group(1).replace('.','').replace(',','').replace('\'', '').replace('`', '').replace('´', '').replace('’', '').replace('′', '').replace('＇', '').replace('\uFF0C','').replace('\uFF0E','')
        fractValue = z2(m.group(m.lastindex))
        if len(majorValue) > 0 and len(fractValue) > 0:
            return canonicalNumber(majorValue + '.' + fractValue)
    raise XPathContext.FunctionArgType(1,"ixt:nonNegativeDecimalType")

def numunitdecimalin(arg):
    m = numUnitDecimalInPattern.match(arg)
    if m:
        m2 = [g for g in m.groups() if g is not None]
        return m2[0].replace(',','').replace(' ','').replace('\xa0','') + '.' + z2(m2[-2])
    raise XPathContext.FunctionArgType(1,"ixt:numunitdecimalinType")

tr1Functions = {
    # 2010-04-20 functions
    'dateslashus': dateslashus,
    'dateslasheu': dateslasheu,
    'datedotus': datedotus,
    'datedoteu': datedoteu,
    'datelongus': datelongusTR1,
    'dateshortus': dateshortusTR1,
    'datelonguk': datelongukTR1,
    'dateshortuk': dateshortukTR1,
    'numcommadot': numcommadot,
    'numdash': numdash,
    'numspacedot': numspacedot,
    'numdotcomma': numdotcomma,
    'numcomma': numcomma,
    'numspacecomma': numspacecomma,
    'datelongdaymonthuk': datedaymonthLongEnTR1,
    'dateshortdaymonthuk': datedaymonthShortEnTR1,
    'datelongmonthdayus': datemonthdayLongEnTR1,
    'dateshortmonthdayus': datemonthdayShortEnTR1,
    'dateslashdaymontheu': datedaymonthSlashTR1,
    'dateslashmonthdayus': datemonthdaySlashTR1,
    'datelongyearmonth': dateyearmonthLongEnTR1,
    'dateshortyearmonth': dateyearmonthShortEnTR1,
    'datelongmonthyear': datemonthyearLongEnTR1,
    'dateshortmonthyear': datemonthyearShortEnTR1
}

tr2Functions = {

    # 2011-07-31 functions
    'booleanfalse': booleanfalse,
    'booleantrue': booleantrue,
    'datedaymonth': datedaymonthTR2,
    'datedaymonthen': datedaymonthen,
    'datedaymonthyear': datedaymonthyearTR2,
    'datedaymonthyearen': datedaymonthyearen,
    'dateerayearmonthdayjp': dateerayearmonthdayjp,
    'dateerayearmonthjp': dateerayearmonthjp,
    'datemonthday': datemonthday,
    'datemonthdayen': datemonthdayen,
    'datemonthdayyear': datemonthdayyear,
    'datemonthdayyearen': datemonthdayyearen,
    'datemonthyearen': datemonthyearen,
    'dateyearmonthdaycjk': dateyearmonthdaycjk,
    'dateyearmonthen': dateyearmonthen,
    'dateyearmonthcjk': dateyearmonthcjk,
    'nocontent': nocontent,
    'numcommadecimal': numcommadecimal,
    'zerodash': zerodash,
    'numdotdecimal': numdotdecimal,
    'numunitdecimal': numunitdecimal
}

    # transformation registry v-3 functions
tr3Functions = tr2Functions.copy() # tr3 starts with tr2 and adds more functions
tr3Functions.update ({
    # same as v2: 'booleanfalse': booleanfalse,
    # same as v2: 'booleantrue': booleantrue,
    'calindaymonthyear': calindaymonthyear, # TBD: calindaymonthyear,
    #'calinmonthyear': nocontent, # TBD: calinmonthyear,
    # same as v2: 'datedaymonth': datedaymonthTR2,
    'datedaymonthdk': datedaymonthdk,
    # same as v2: 'datedaymonthen': datedaymonthen,
    # same as v2: 'datedaymonthyear': datedaymonthyearTR2,
    'datedaymonthyeardk': datedaymonthyeardk,
    # same as v2: 'datedaymonthyearen': datedaymonthyearen,
    'datedaymonthyearin': datedaymonthyearinTR3,
    # same as v2: 'dateerayearmonthdayjp': dateerayearmonthdayjp,
    # same as v2: 'dateerayearmonthjp': dateerayearmonthjp,
    # same as v2: 'datemonthday': datemonthday,
    # same as v2: 'datemonthdayen': datemonthdayen,
    # same as v2: 'datemonthdayyear': datemonthdayyear,
    # same as v2: 'datemonthdayyearen': datemonthdayyearen,
    'datemonthyear': datemonthyearTR3,
    'datemonthyeardk': datemonthyeardk,
    # same as v2: 'datemonthyearen': datemonthyearen,
    'datemonthyearin': datemonthyearin,
    # same as v2: 'dateyearmonthcjk': dateyearmonthcjk,
    'dateyearmonthday': dateyearmonthday, # (Y)Y(YY)*MM*DD allowing kanji full-width numerals
    # same as v2: 'dateyearmonthdaycjk': dateyearmonthdaycjk,
    # same as v2: 'dateyearmonthen': dateyearmonthen,
    # same as v2: 'nocontent': nocontent,
    # same as v2: 'numcommadecimal': numcommadecimal,
    # same as v2: 'numdotdecimal': numdotdecimal,
    'numdotdecimalin': numdotdecimalin,
    # same as v2: 'numunitdecimal': numunitdecimal,
    'numunitdecimalin': numunitdecimalin,
    # same as v2: 'zerodash': zerodash,
})
    # transformation registry v-4 functions
tr4Functions = {
    'date-day-month': datedaymonthTR2,
    'date-day-monthname-bg': datedaymonthbg,
    'date-day-monthname-cs': datedaymonthcs,
    'date-day-monthname-da': datedaymonthdk,
    'date-day-monthname-de': datedaymonthde,
    'date-day-monthname-el': datedaymonthel,
    'date-day-monthname-en': datedaymonthen,
    'date-day-monthname-es': datedaymonthes,
    'date-day-monthname-et': datedaymonthet,
    'date-day-monthname-fi': datedaymonthfi,
    'date-day-monthname-fr': datedaymonthfr,
    'date-day-monthname-hr': datedaymonthhr,
    'date-day-monthname-it': datedaymonthit,
    'date-day-monthname-lv': datedaymonthlv,
    'date-day-monthname-nl': datedaymonthnl,
    'date-day-monthname-no': datedaymonthno,
    'date-day-monthname-pl': datedaymonthpl,
    'date-day-monthname-pt': datedaymonthpt,
    'date-day-monthname-ro': datedaymonthro,
    'date-day-monthname-sk': datedaymonthsk,
    'date-day-monthname-sl': datedaymonthsl,
    'date-day-monthname-sv': datedaymonthdk,
    'date-day-monthroman': datedaymonthroman,
    'date-day-month-year': datedaymonthyearTR4,
    'date-day-monthname-year-bg': datedaymonthyearbg,
    'date-day-monthname-year-cs': datedaymonthyearcs,
    'date-day-monthname-year-da': datedaymonthyeardk,
    'date-day-monthname-year-de': datedaymonthyearde,
    'date-day-monthname-year-el': datedaymonthyearel,
    'date-day-monthname-year-en': datedaymonthyearen,
    'date-day-monthname-year-es': datedaymonthyeares,
    'date-day-monthname-year-et': datedaymonthyearet,
    'date-day-monthname-year-fi': datedaymonthyearfi,
    'date-day-monthname-year-fr': datedaymonthyearfr,
    'date-day-monthname-year-hi': datedaymonthyearinTR4,
    'date-day-monthname-year-hr': datedaymonthyearhr,
    'date-day-monthname-year-it': datedaymonthyearit,
    'date-day-monthname-year-nl': datedaymonthyearnl,
    'date-day-monthname-year-no': datedaymonthyearno,
    'date-day-monthname-year-pl': datedaymonthyearpl,
    'date-day-monthname-year-pt': datedaymonthyearpt,
    'date-day-monthname-year-ro': datedaymonthyearro,
    'date-day-monthname-year-sk': datedaymonthyearsk,
    'date-day-monthname-year-sl': datedaymonthyearsl,
    'date-day-monthname-year-sv': datedaymonthyeardk,
    'date-day-monthroman-year': datedaymonthyearroman,
    'date-ind-day-monthname-year-hi': calindaymonthyear,
    'date-jpn-era-year-month-day': dateerayearmonthdayjp,
    'date-jpn-era-year-month': dateerayearmonthjp,
    'date-monthname-day-en': datemonthdayen,
    'date-monthname-day-hu': datemonthdayhu,
    'date-monthname-day-lt': datemonthdaylt,
    'date-monthname-day-year-en': datemonthdayyearen,
    'date-month-day': datemonthday,
    'date-month-day-year': datemonthdayyear,
    'date-month-year': datemonthyearTR4,
    'date-monthname-year-bg': datemonthyearbg,
    'date-monthname-year-cs': datemonthyearcs,
    'date-monthname-year-da': datemonthyeardk,
    'date-monthname-year-de': datemonthyearde,
    'date-monthname-year-el': datemonthyearel,
    'date-monthname-year-en': datemonthyearen,
    'date-monthname-year-es': datemonthyeares,
    'date-monthname-year-et': datemonthyearet,
    'date-monthname-year-fi': datemonthyearfi,
    'date-monthname-year-fr': datemonthyearfr,
    'date-monthname-year-hi': datemonthyearin,
    'date-monthname-year-hr': datemonthyearhr,
    'date-monthname-year-it': datemonthyearit,
    'date-monthname-year-nl': datemonthyearnl,
    'date-monthname-year-no': datemonthyearno,
    'date-monthname-year-pl': datemonthyearpl,
    'date-monthname-year-pt': datemonthyearpt,
    'date-monthname-year-ro': datemonthyearro,
    'date-monthname-year-sk': datemonthyearsk,
    'date-monthname-year-sl': datemonthyearsl,
    'date-monthname-year-sv': datemonthyeardk,
    'date-monthroman-year': datemonthyearroman,
    'date-year-day-monthname-lv': dateyeardaymonthlv,
    'date-year-month': dateyearmonthTR4,
    'date-year-month-day': dateyearmonthday, # (Y)Y(YY)*MM*DD allowing kanji full-width numerals
    'date-year-monthname-en': dateyearmonthen,
    'date-year-monthname-hu': dateyearmonthhu,
    'date-year-monthname-day-hu': dateyearmonthdayhu,
    'date-year-monthname-day-lt': dateyearmonthdaylt,
    'date-year-monthname-lt': dateyearmonthlt,
    'date-year-monthname-lv': dateyearmonthlv,
    'fixed-empty': nocontent,
    'fixed-false': booleanfalse,
    'fixed-true': booleantrue,
    'fixed-zero': fixedzero,
    'num-comma-decimal': numcommadecimalTR4,
    'num-dot-decimal': numdotdecimalTR4, # relax requirement for 0 before decimal
    'numdotdecimalin': numdotdecimalinTR4,
    'num-unit-decimal': numunitdecimalTR4,
}
    # transformation registry v-5 functions
tr5Functions = tr4Functions.copy() # tr5 starts with tr4 and adds more functions
tr5Functions.update ({
    # Welsh language
    'date-day-monthname-cy': datedaymonthcy,
    'date-day-monthname-year-cy': datedaymonthyearcy,
    'date-monthname-year-cy': datemonthyearcy,
    # Swiss-style numbers with apostrophes as thousand separators
    'num-comma-decimal-apos': numcommadecimalApos,
    'num-dot-decimal-apos': numdotdecimalApos,
    'num-unit-decimal-apos': numunitdecimalApos
})
deprecatedNamespaceURI = 'http://www.xbrl.org/2008/inlineXBRL/transformation' # the CR/PR pre-REC namespace

ixtNamespaces = {
    "ixt v1": 'http://www.xbrl.org/inlineXBRL/transformation/2010-04-20',
    "ixt v2": 'http://www.xbrl.org/inlineXBRL/transformation/2011-07-31',
    "ixt v3": 'http://www.xbrl.org/inlineXBRL/transformation/2015-02-26',
    "ixt v4": 'http://www.xbrl.org/inlineXBRL/transformation/2020-02-12',
    "ixt v5": 'http://www.xbrl.org/inlineXBRL/transformation/2022-02-16',
    }

ixtNamespaceFunctions = {
    ixtNamespaces["ixt v1"]: tr1Functions, # transformation registry v1
    ixtNamespaces["ixt v2"]: tr2Functions, # transformation registry v2
    ixtNamespaces["ixt v3"]: tr3Functions, # transformation registry v3
    ixtNamespaces["ixt v4"]: tr4Functions, # transformation registry v4
    ixtNamespaces["ixt v5"]: tr5Functions, # transformation registry v5
    "http://www.xbrl.org/inlineXBRL/transformation/WGWD/YYYY-MM-DD": tr5Functions, # transformation registry v4 draft
    'http://www.xbrl.org/2008/inlineXBRL/transformation': tr1Functions # the CR/PR pre-REC namespace
}
