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This module implements the{{British regnal year}} template. It converts a year in the Gregorian calendar into a Britishregnal year.
{{#invoke:British regnal year|main|<year in Gregorian calendar>}}
{{British regnal year|1952}} → 16 Geo. 6 – 1 Eliz. 2
The data for the module is stored in a table atModule:British regnal year/data. The module looks through the data list from newest to oldest, and returns the data for the first result where the input year is greater than or equal to theyear value. The data table entries are organised as follows:
year - the year that the template searches for when deciding what links to display. In most cases this is the year that the monarch's reign began, although it can be different if the history is complicated.linkCurrent - a wikilink to the current monarch's Wikipedia article.startYear - the regnal year of theyear value for the current monarch. If this is the monarch's first year on the throne, this is1; if it is their second year, this is2, and so on.linkPrev - a wikilink to the Wikipedia article of the previous monarch.prevEndYear - the regnal year of theyear value for the previous monarch.note - a short note about the years for this time period. This is displayed after the other content.-- This module implements {{British regnal year}}. It converts a year in the Gregorian-- calendar to the equivalent English or British regnal year.localdata=mw.loadData('Module:British regnal year/data')localp={}functionp.main(frame)-- If we are being called from #invoke, then the year is the first positional-- argument. If not, it is the frame parameter.localinputYearifframe==mw.getCurrentFrame()theninputYear=frame:getParent().args[1]localframeArgsYear=frame.args[1]ifframeArgsYeartheninputYear=frameArgsYearendelseinputYear=frameend-- Convert the input to an integer if possible. Return "N/A" if the input could-- not be converted, or if the converted input is too big or too small.iftype(inputYear)~='number'theninputYear=tonumber(inputYear)endifnotinputYearthenreturn"''N/A''"endlocalcurrentYear=tonumber(mw.language.getContentLanguage():formatDate('Y'))-- The year 1066 is significant because it is when the Norman conquest of England occurred.ifinputYear<1066orinputYear>currentYearthenreturn"''N/A''"end-- Find the year in the data page and display the output.for_,tinipairs(data)dolocaldataYear=t.yearifinputYear>=dataYearthen-- Get data values from the data page.localstartYear=t.startYearlocalcurrentRegnalYear=inputYear-dataYear+startYearlocallinkCurrent=t.linkCurrentlocalprevEndYear=t.prevEndYearlocallinkPrev=t.linkPrevlocalnote=t.noteifinputYear>dataYearthen-- Years with the same monarch.returnmw.ustring.format('%d %s – %d %s%s',currentRegnalYear-1,linkCurrent,currentRegnalYear,linkCurrent,noteor'')elseifinputYear==dataYearandprevEndYearandlinkPrevthen-- Years with a different monarch.returnmw.ustring.format('%d %s – %d %s%s',prevEndYear,linkPrev,currentRegnalYear,linkCurrent,noteor'')else-- This should only match the year 1066.returnmw.ustring.format('%d %s%s',currentRegnalYear,linkCurrent,noteor'')endendendendreturnp