Difference between revisions of "Module:Item"
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en>MusikAnimal m (Protected "Module:Item": High-risk module ([Edit=Require autoconfirmed or confirmed access] (indefinite))) |
m (1 revision imported) |
(No difference)
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Latest revision as of 16:28, 2 August 2019
Documentation for this module may be created at Module:Item/doc
local p = {} local function escape(str) return str:gsub("[|\\]", function (c) return string.format("\\%03d", c:byte()) end) end local function unescape(str) return str:gsub("\\(%d%d%d)", function (d) return string.char(d) end) end -- Implements [[Template:Item]] function p.pack(frame) local parent = frame:getParent() local result = '' for key, value in pairs(parent.args) do result = result .. "|" .. escape(tostring(key)) .. "|" .. escape(value) end return result .. "|"; end local function unpack(str) local result = { } for key, value in str:gfind("|([^|]*)|([^|]*)") do result[unescape(key)] = unescape(value) end return result end -- Implements [[Template:Component]] function p.component(frame) return unpack(frame.args[1])[frame.args[2]] end local function getItems(frame) return frame:getParent().args end local function invert(tbl) local result = { } for key, value in pairs(tbl) do result[value] = key end return result end -- Add args into item as appropriate (see [[Template:Format item]]) local function addArgs( item, -- unpacked item to modify args, -- arguments for adding into item ignore, -- pass in invert{keys to ignore} shift -- for numbered arguments, args[key+shift] is assigned to item[key] -- returns: item ) for key, value in pairs(args) do if not ignore[key] then local _, _, paramKey = string.find(key, "^param (.*)") local _, _, importantKey = string.find(key, "^important (.*)") paramKey = paramKey or importantKey or key if shift and type(paramKey) == "number" then paramKey = paramKey - shift if paramKey < 1 then paramKey = nil end end if paramKey and (importantKey or item[paramKey] == nil) then item[paramKey] = value end end end return item end -- Implements [[Template:Format item]] function p.format(frame) local args = frame:getParent().args local ignore = invert{ "template", "item" } local templateArgs = addArgs(unpack(args.item), args, ignore) return frame:expandTemplate{ title = args.template, args = templateArgs } end -- See [[Template:Item#Format each item using a template]] function p.each(frame) local args = frame.args local items = getItems(frame) local separator = args[1] or "" local prepend = args[2] or "" local append = args[3] or "" local ignore = invert{ "template" } local shift = 3 local result = "" for i, item in ipairs(items) do local templateArgs = addArgs(unpack(item), args, ignore, shift) result = result .. prepend .. frame:expandTemplate{ title = args.template, args = templateArgs } .. append if items[i + 1] then result = result .. separator end end return result end -- See [[Template:Item#Gather given parameter from all items]] function p.gather(frame) local args = frame.args local items = getItems(frame) local parameter = args.parameter or "1" local templateArgs = { } for i, item in ipairs(items) do templateArgs[i] = unpack(item)[parameter] end return frame:expandTemplate{ title = args.template, args = templateArgs } end return p