Module:Singles

local p = {}

-- Ripped from Module:Infobox. TODO: Make a utility module that can do this kind of thing local function getArgNums(args, prefix)

   -- Returns a table containing the numbers of the arguments that exist
   -- for the specified prefix. For example, if the prefix were to be 'data', and
   -- 'data1', 'data2', and 'data5' were to exist, it would return {1, 2, 5}.
   local nums = {}
   for k, v in pairs(args) do
       local num = tostring(k):match('^' .. prefix .. '([1-9]%d*)$')
       if num then table.insert(nums, tonumber(num)) end
   end
   table.sort(nums)
   return nums

end

-- Forked from Module:Unsubst-infobox

local specialParams = { ['$B'] = 'template content' }

p[] = function ( frame ) if not frame.args['$B'] then error( ' requires parameter $B (template content)' ) end

if mw.isSubsting() then ---- substing -- Passed args local args = {} for k, v in pairs( frame:getParent().args ) do args[k] = v end

-- Build an equivalent template invocation -- First, find the title to use local titleobj = mw.title.new(frame:getParent():getTitle()) local title if titleobj.namespace == 10 then -- NS_TEMPLATE title = titleobj.text elseif titleobj.namespace == 0 then -- NS_MAIN title = ':' .. titleobj.text else title = titleobj.prefixedText end

-- Remove empty fields for k, v in pairs( args ) do if v == then args[k] = nil end end

-- Pull aliases local nums = getArgNums(args, '[Ss]ingle ?') for _, num in ipairs(nums) do args['single' .. num] = args['single' .. num] or args['single ' .. num] or args['Single ' .. num] args['single' .. num .. 'date'] = args['single' .. num .. 'date'] or args['single ' .. num .. ' date'] or args['Single ' .. num .. ' date'] or args['single ' .. num], args['Single ' .. num], args['single ' .. num .. ' date'], args['Single ' .. num .. ' date'] = nil, nil, nil, nil end for k, v in pairs( {Type = 'type', Name = 'name'} ) do if args[k] and not args[v] then args[v], args[k] = args[k], nil end end

-- Build the invocation body local ret = '{{' .. title

-- Make parameter list local params = {'name', 'type'} for _, num in ipairs( nums ) do table.insert( params, 'single' .. num ); table.insert( params, 'single' .. num .. 'date' ) end

-- Align parameters correctly and remove extra ones local maxlength = 0 for k, v in ipairs( params ) do local tmp = mw.ustring.len( v ) if tmp > maxlength then maxlength = tmp end end

for k, v in ipairs( params ) do ret = ret .. '\n | ' .. v .. string.rep(' ', (maxlength - mw.ustring.len( v ))) .. ' = ' .. (args[v] or ) end

ret = ret .. '\n}}'

ret = mw.ustring.gsub(ret, '%s+\n', '\n')

return ret else -- Not substing -- Just return the "body" return frame.args['$B'] end end

function p.main(frame) local args = require('Module:Arguments').getArgs(frame, {wrappers = 'Template:Singles'}) local out = local nums = getArgNums(args, '[Ss]ingle ?') for _, num in ipairs(nums) do out = out .. '\n# "' .. (args['single' .. num] or args['single ' .. num] or args['Single ' .. num]) .. '"' local date = args['single' .. num .. 'date'] or args['single ' .. num .. ' date'] or args['Single ' .. num .. ' date'] if date then out = out .. '
Released: ' .. date end out = out .. '' end

if out ~= then if mw.ustring.match(out, '</?t[drh][ >]') then out = out .. end

return '

' .. out .. '\n

'

end

return out end

return p