మాడ్యూల్:CountryAdjectiveDemonym

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local CountryAdjectiveDemonym = { }

local CountryAdjectiveDemonymDataLoaded = false

local countryAdjectivesToNounsTable = { }
local countryNounsToAdjectivesTable  = { }

local countryDemonymsToNounsTable = { }
local countryNounsToDemonymsTable  = { }

local countriesPrefixedByTheTable = { }

function CountryAdjectiveDemonymDoLoadData()
	countriesPrefixedByTheTable = mw.loadData( 'Module:CountryAdjectiveDemonym/The' )
	countryNounsToAdjectivesTable = mw.loadData( 'Module:CountryAdjectiveDemonym/Adjectives' )
	countryNounsToDemonymsTable = mw.loadData( 'Module:CountryAdjectiveDemonym/Demonyms' )
	local myNoun, myAdjective
	
	-- first, load the adjectives table
	for myNoun, myAdjective in pairs(countryNounsToAdjectivesTable) do
		countryAdjectivesToNounsTable[myAdjective] = myNoun
	end

	-- Now load the denomyms table
	local myDemonym
	for myNoun, myDemonym in pairs(countryNounsToDemonymsTable) do
		countryDemonymsToNounsTable[myDemonym] = myNoun
	end
	CountryAdjectiveDemonymDataLoaded = true
	return
end


-- ############### Publicly accesible functions #######################

-- if the country name is prefixed by "the" in running text,
-- then return that prefix
-- Otherwise just return an empty string
function CountryAdjectiveDemonym.countryPrefixThe(frame)
	local s = frame.args[1]
	if not CountryAdjectiveDemonymDataLoaded then
		CountryAdjectiveDemonymDoLoadData()
	end
	if (countriesPrefixedByTheTable[s] == true) then
		return "the "
	end
	return ""
end


function CountryAdjectiveDemonym.getCountryFromAdjective(frame)
	local s = frame.args[1]
	if not CountryAdjectiveDemonymDataLoaded then
		CountryAdjectiveDemonymDoLoadData()
	end
	local retval = countryAdjectivesToNounsTable[s]
	if retval == nil then
		if s == "Georgia (country)" then
			return s
		end
		return ""
	end
	return retval
end

function CountryAdjectiveDemonym.getCountryFromString(frame)
	local s = frame.args[1]
	if not CountryAdjectiveDemonymDataLoaded then
		CountryAdjectiveDemonymDoLoadData()
	end
	
	local similarLongerNouns = mw.loadData( 'Module:CountryAdjectiveDemonym/LongerNouns' )
	for adjective, noun in pairs(countryAdjectivesToNounsTable) do
		if string.find(s, adjective) or string.find(s, noun) then
			for longerNoun, nameToUse in pairs(similarLongerNouns) do
				if string.find(s, longerNoun) then
					return nameToUse
				end
			end
			return noun
		end
	end
end

function CountryAdjectiveDemonym.getCountryFromDemonym(frame)
	local s = frame.args[1]
	if not CountryAdjectiveDemonymDataLoaded then
		CountryAdjectiveDemonymDoLoadData()
	end
	local retval = countryDemonymsToNounsTable[s]
	if retval == nil then 
		retval = countryAdjectivesToNounsTable[s]
	end
	if retval == nil then
		return ""
	end
	return retval
end


function CountryAdjectiveDemonym.getAdjectiveFromCountry(frame)
	local s = frame.args[1]
	if not CountryAdjectiveDemonymDataLoaded then
		CountryAdjectiveDemonymDoLoadData()
	end
	local retval = countryNounsToAdjectivesTable[s]
	if retval == nil then
		return ""
	end
	return retval
end


function CountryAdjectiveDemonym.getDemonymFromCountry(frame)
	local s = frame.args[1]
	if not CountryAdjectiveDemonymDataLoaded then
		CountryAdjectiveDemonymDoLoadData()
	end
	local retval
	retval = countryNounsToDemonymsTable[s]
	if retval == nil then
		retval = countryNounsToAdjectivesTable[s]
	end
	if retval == nil then
		return ""
	end
	return retval
end


function CountryAdjectiveDemonym.stripThe(frame)
	local s = frame.args[1]
	if s == nil then
		return ""
	end
	if mw.ustring.match( s, "^[T]he Gambia$") ~= nil then
		return s
	end
	local stripped = mw.ustring.gsub(s, "^[tT]he ", "")
	return stripped
end


return CountryAdjectiveDemonym