Module:List
Revision as of 17:00, 23 November 2013 by meta>Frietjes (test fix for technically invalid parameters being passed to type by moving them (if possible) to list_style_type)
Documentation for this module may be created at Module:List/doc
-- This module outputs different kinds of lists. At the moment, bulleted, unbulleted,
-- horizontal, ordered, and horizontal ordered lists are supported.
local p = {}
local htmlBuilder = require('Module:HtmlBuilder')
local function getListItem(data, style, itemStyle, itemValue)
if not data then
return nil
end
local item = htmlBuilder.create('li')
item
.cssText(style)
.cssText(itemStyle)
.wikitext(data)
if(itemValue) then
item.attr('value',itemValue)
end
return tostring(item)
end
local function getArgNums(args)
-- Returns an array containing the keys of all positional arguments
-- that contain data (i.e. non-whitespace values).
local nums = {}
for k, v in pairs(args) do
if type(k) == 'number' and
k >= 1 and
math.floor(k) == k and
mw.ustring.match(v, '%S') then
table.insert(nums, k)
end
end
table.sort(nums)
return nums
end
function p.makeList(listType, args)
-- This is the main function to be called from other Lua modules.
-- First, get the list items.
local listItems = {}
local argNums = getArgNums(args)
for i, num in ipairs(argNums) do
local item = getListItem(
args[num],
args.item_style or args.li_style, -- li_style is included for backwards compatibility. item_style was included to be easier to understand for non-coders.
args['item_style' .. tostring(num)] or args['li_style' .. tostring(num)],
args['item_value' .. tostring(num)]
)
table.insert(listItems, item)
end
if #listItems == 0 then
return ''
end
-- Build the list html.
local root = htmlBuilder.create('div')
if listType == 'horizontal' or listType == 'horizontal_ordered' then
root.addClass('hlist')
elseif listType == 'unbulleted' then
root.addClass('plainlist')
end
root.addClass(args.class)
if listType == 'horizontal' or listType == 'horizontal_ordered' then
local indent = tonumber(args.indent)
indent = tostring((indent and indent * 1.6) or 0)
root.css('margin-left', indent .. 'em')
end
if args['type'] and not args['type']:match('[1AaIi]') then
if not args['list_style_type'] and not args['list-style-type'] then
args['list_style_type'] = args['type']
args['type'] = ''
end
end
root.cssText(args.style)
local list = root.tag((listType == 'ordered' or listType == 'horizontal_ordered') and 'ol' or 'ul')
list
.attr('start', args.start)
.attr('type', args.type)
.css('list-style-type', args.list_style_type or args['list-style-type'])
.cssText(args.list_style or args.ul_style or args.ol_style) -- ul_style and ol_style are included for backwards compatibility. No distinction is made for ordered or unordered lists.
.wikitext(table.concat(listItems))
return tostring(root)
end
local function makeWrapper(listType)
return function(frame)
local origArgs
if frame == mw.getCurrentFrame() then
origArgs = frame:getParent().args
for k, v in pairs(frame.args) do
origArgs = frame.args
break
end
else
origArgs = frame
end
local args = {}
for k, v in pairs(origArgs) do
if type(k) == 'number' or v ~= '' then
args[k] = v
end
end
return p.makeList(listType, args)
end
end
local funcNames = {'bulleted', 'unbulleted', 'horizontal', 'ordered', 'horizontal_ordered'}
for _, funcName in ipairs(funcNames) do
p[funcName] = makeWrapper(funcName)
end
return p