Module:SoundtrackTable

Documentation for this module may be created at Module:SoundtrackTable/doc

local p = {}

function splitByPlainSeparator(str, sep, max)
    local z = #sep; sep = '^.-'..sep:gsub('[$%%()*+%-.?%[%]^]', '%%%0')
    local t,n,p, q,r = {},1,1, str:find(sep)
    while q and n~=max do
        t[n],n,p = str:sub(q,r-z),n+1,r+1
        q,r = str:find(sep,p)
    end
    t[n] = str:sub(p)
    return t
end

function toMap(entries)
	local fields = splitByPlainSeparator(entries, '$$')
	mw.log(fields)
	local map = {}
	for var=1,#fields-1 do
		local tmp = {}
		local current = fields[var]
		for k, s in pairs(splitByPlainSeparator(current, '$')) do
			local tmp2 = splitByPlainSeparator(s, '=')
			tmp[tmp2[1]] = tmp2[2]
		end
		map[var] = tmp
	end
	return map
end

function value(entries, i, j, args)
	if not entries[i] then
		return 'Out Of Range'
	else
		if not entries[i][j] or entries[i][j] == '' then
			return args['default/' .. j] or ''
		else
			return entries[i][j]
		end
	end
end

function uniq(entries, i, j, args, columns)
	if not entries[i] then
		return 'Out Of Range'
	end
	if not args['unique/' .. j] then
		return value(entries, i, j, args)
	end
	local ret = args['unique/' .. j]
	for k, column in pairs(columns) do
		ret = ret:gsub(column, value(entries, i, column, args))
	end
	return ret
end

function p.generate(frame)
	local args = frame.args
	local entries = toMap(frame.args['entries'])
	local columns = splitByPlainSeparator(frame.args['columns'], ',')
	
	local result = ""
	for var=1,#entries do
		for k, column in pairs(columns) do
			local id = uniq(entries, var, column, args, columns)
			if (id ~= uniq(entries, var - 1, column, args, columns)) then
				local rowspan = 1
				while (id == uniq(entries, var + rowspan, column, args, columns)) do
					rowspan = rowspan + 1
				end
				local value = value(entries, var, column, args)
				if value ~= '' and frame.args['display/' .. column] then
					value = frame.args['display/' .. column]:gsub('value', value)
				end
				result = result .. '|rowspan="' .. tostring(rowspan) .. '"|' .. value .. "\n"
			end
		end
		if (var ~= #entries) then
			result = result .. "|-\n"
		end
	end
	return result
end

return p