Module:Respell

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local p = {}
local getArgs = require('Module:Arguments').getArgs

function p._main(args)
	local ret = ''
	local j = 0
	local hasUnsc = {}
	
	for i, v in ipairs(args) do
		
		-- Compatibility: Ignore arguments that only contain an apostrophe
		if v and v ~= '' and v ~= '\'' then
			hasUnsc[i] = mw.ustring.find(v, '_')
			
			if hasUnsc[i] then
				v = mw.ustring.gsub(v, '_', ' ')
			else
				if v == mw.ustring.upper(v) then
					v = '\'\'\'' .. v .. '\'\'\''
				end
				if i ~= 1 and not hasUnsc[i-1] then
					v = '-' .. v
				end
			end
			
			ret = ret .. v
		end
		
		i = i + 1
		j = i
	end
	
	ret = '<small title="English pronunciation respelling">\'\'' .. ret .. '\'\'</small>'
	
	-- For documentation: Disable linking by adding a blank parameter at the end
	if args[j] ~= '' then 
		ret = '[[Help:Pronunciation respelling key|' .. ret .. ']]'
	end
	
	return ret
end

function p.main(frame)
	local args = getArgs(frame, {removeBlanks = false})
	return p._main(args)
end

return p