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![]() | This module is subject to page protection. It is a highly visible module in use by a very large number of pages, or is substituted very frequently. Because vandalism or mistakes would affect many pages, and even trivial editing might cause substantial load on the servers, it is protected from editing. |
![]() | This module depends on the following other modules: |
This module produces a banner for talk archive pages. The module detects surrounding archives automatically and creates navigational links to them, hence the name.
Usage
This module is accessed via a template, Template:Archive. See the template page for documentation.
Dependencies
This module uses a configuration module at Module:Automatic archive navigator/config. It also uses Module:Highest archive number, Module:Arguments, Module:Yesno, and Module:Message box.
See also
-------------------------------------------------------------------------------
-- Automatic archive navigator
--
-- This module produces a talk archive banner, together with an automatically-
-- generated list of navigation links to other archives of the talk page in
-- question. It implements {{Automatic archive navigator}} and
-- {{Talk archive navigation}}.
-------------------------------------------------------------------------------
local yesno = require('Module:Yesno')
-------------------------------------------------------------------------------
-- Helper functions
-------------------------------------------------------------------------------
local function makeWikilink(page, display)
if display then
return string.format('[[%s|%s]]', page, display)
else
return string.format('[[%s]]', page)
end
end
local function escapePattern(s)
-- Escape punctuation in a string so it can be used in a Lua pattern.
s = s:gsub('%p', '%%%0')
return s
end
-------------------------------------------------------------------------------
-- Navigator class
-------------------------------------------------------------------------------
local Navigator = {}
Navigator.__index = Navigator
function Navigator.new(args, cfg, currentTitle)
local obj = setmetatable({}, Navigator)
-- Set inputs
obj.args = args
obj.cfg = cfg
obj.currentTitle = currentTitle
-- Archive prefix
-- Decode HTML entities so users can enter things like "Archive " from
-- wikitext.
obj.archivePrefix = obj.args.prefix or obj:message('archive-prefix')
obj.archivePrefix = mw.text.decode(obj.archivePrefix)
-- Current archive number
do
local pattern = string.format(
'^%s([1-9][0-9]*)$',
escapePattern(obj.archivePrefix)
)
obj.currentArchiveNum = obj.currentTitle.subpageText:match(pattern)
obj.currentArchiveNum = tonumber(obj.currentArchiveNum)
end
-- Highest archive number
obj.highestArchiveNum = require('Module:Highest archive number')._main(
obj.currentTitle.nsText ..
':' ..
obj.currentTitle.baseText ..
'/' ..
obj.archivePrefix
)
return obj
end
function Navigator:message(key, ...)
local msg = self.cfg[key]
if select('#', ...) > 0 then
return mw.message.newRawMessage(msg, ...):plain()
else
return msg
end
end
function Navigator:makeBlurb()
local args = self.args
if args[1] == '1' then
-- The old template used "|1" to suppress the blurb.
return ''
else
local ret
if args.text then
ret = args.text
else
local talkPage = self.currentTitle.nsText .. ':'
if args.prefix then
talkPage = talkPage .. self.currentTitle.baseText
else
talkPage = talkPage .. self.currentTitle.rootText
end
local namespace
if self.currentTitle.isTalkPage == true then
namespace = 'talk'
else
namespace = 'main'
end
if args.period then
ret = self:message('blurb-period', talkPage, args.period, namespace)
else
ret = self:message('blurb-noperiod', talkPage, namespace)
end
end
return ret
end
end
function Navigator:makeMessageBox()
local args = self.args
local image
if args.image then
image = args.image
else
local icon = args.icon or self:message('default-icon')
image = string.format(
'[[File:%s|%s|alt=|link=]]',
icon,
self:message('image-size')
)
end
-- Hardcode tmbox style on the template's page.
-- PS: Needs to be changed if the template is renamed!
local mainTemplatePage = ''
if self.currentTitle.fullText == 'Template:Archive' then
mainTemplatePage = 'talk'
end
local mbox = require('Module:Message box').main('mbox', {
demospace = args.demospace or mainTemplatePage,
image = image,
imageright = args.imageright,
style = args.style or '',
textstyle = args.textstyle or 'text-align:center',
text = self:makeBlurb()
})
return mbox
end
function Navigator:getArchiveNums()
-- Returns an array of the archive numbers to format.
local noLinks = tonumber(self.args.links) or self:message('default-link-count')
noLinks = math.floor(noLinks)
-- If |noredlinks is "yes", true or absent, don't allow red links. If it is
-- 'no' or false, allow red links.
local allowRedLinks = yesno(self.args.noredlinks) == false
local current = self.currentArchiveNum
local highest = self.highestArchiveNum
if not current or not highest or noLinks < 1 then
return {}
elseif noLinks == 1 then
return {current}
end
local function getNum(i, current)
-- Gets an archive number given i, the position in the array away from
-- the current archive, and the current archive number. The first two
-- offsets are consecutive; the third offset is rounded up to the
-- nearest 5; and the fourth and subsequent offsets are rounded up to
-- the nearest 10. The offsets are calculated in such a way that archive
-- numbers will not be duplicated.
if -2 <= i and i <= 2 then
return current + i
elseif -3 <= i and i <= 3 then
return current + 2 - (current + 2) % 5 + (i / 3) * 5
elseif 4 <= i then
return current + 7 - (current + 7) % 10 + (i - 3) * 10
else
return current + 2 - (current + 2) % 10 + (i + 3) * 10
end
end
local nums = {}
-- Archive nums lower than the current page.
for i = -1, -math.floor((noLinks - 1) / 2), -1 do
local num = getNum(i, current)
if num <= 1 then
table.insert(nums, 1, 1)
break
else
table.insert(nums, 1, num)
end
end
-- Current page.
if nums[#nums] < current then
table.insert(nums, current)
end
-- Higher archive nums.
for i = 1, math.ceil((noLinks - 1) / 2) do
local num = getNum(i, current)
if num <= highest then
table.insert(nums, num)
elseif allowRedLinks and (i <= 2 or i <= 3 and num == nums[#nums] + 1) then
-- Only insert one red link, and only if it is consecutive.
table.insert(nums, highest + 1)
break
elseif nums[#nums] < highest then
-- Insert the highest archive number if it isn't already there.
table.insert(nums, highest)
break
else
break
end
end
return nums
end
function Navigator:makeArchiveLinksWikitable()
local args = self.args
local lang = mw.language.getContentLanguage()
local nums = self:getArchiveNums()
local noLinks = #nums
-- Skip number processing if |prev and |next are defined.
if args.prev or args.next then
local archives = {}
if args.prev then archives[#archives + 1] = mw.title.new(args.prev) end
archives[#archives + 1] = self.currentTitle
if args.next then archives[#archives + 1] = mw.title.new(args.next) end
local links = {
'{| style="width:30em;' ..
'margin:0 auto 0.5em;text-align:center"'
}
for i, title in ipairs(archives) do
links[#links + 1] = '\n| '
if tostring(title) == self.currentTitle.prefixedText then
links[#links + 1] = string.format(
'<span style="font-size:115%%;">%s</span>',
makeWikilink(title.fullText, title.subpageText)
)
else
links[#links + 1] = makeWikilink(title.fullText, title.subpageText)
end
end
links[#links + 1] = '\n|}'
return table.concat(links)
end
if noLinks < 1 then
return ''
end
-- Make the table of links.
local links = {}
local isCompact = noLinks > 7
local currentIndex
for i, num in ipairs(nums) do
local subpage = self.archivePrefix .. tostring(num)
local display
if isCompact then
display = tostring(num)
else
display = self:message('archive-link-display', num)
end
local link = makeWikilink('../' .. subpage, display)
if num == self.currentArchiveNum then
link = string.format('<span style="font-size:115%%;">%s</span>', link)
currentIndex = i
end
table.insert(links, link)
end
-- Add the arrows.
-- We must do the forwards arrow first as we are adding elements to the
-- links table. If we did the backwards arrow first the index for the
-- current archive would be wrong.
currentIndex = currentIndex or math.ceil(#links / 2)
for i = currentIndex + 1, #links do
if nums[i] - nums[i - 1] > 1 then
table.insert(links, i, lang:getArrow('forwards'))
break
end
end
for i = currentIndex - 1, 1, -1 do
if nums[i + 1] - nums[i] > 1 then
table.insert(links, i + 1, lang:getArrow('backwards'))
break
end
end
-- Output the wikitable.
local ret = {}
local width
if noLinks <= 3 then
width = string.format('%dem', noLinks * 10)
elseif noLinks <= 7 then
width = string.format('%dem', (noLinks + 3) * 5)
else
width = '50em'
end
ret[#ret + 1] = string.format(
'{| style="width:%s;' ..
'margin:0 auto 0.5em;text-align:center"',
width
)
for i, s in ipairs(links) do
if i % 20 == 1 then
ret[#ret + 1] = '\n|-'
end
ret[#ret + 1] = '\n| '
ret[#ret + 1] = s
end
ret[#ret + 1] = '\n|}'
return table.concat(ret)
end
function Navigator:__tostring()
return self:makeMessageBox() ..
'\n' ..
self:makeArchiveLinksWikitable() ..
' __NONEWSECTIONLINK__ __NOEDITSECTION__ __ARCHIVEDTALK__'
end
-------------------------------------------------------------------------------
-- Exports
-------------------------------------------------------------------------------
local p = {}
function p._exportClasses()
return {
Navigator = Navigator
}
end
function p._aan(args, cfg, currentTitle)
cfg = cfg or mw.loadData('Module:Archive/config')
currentTitle = currentTitle or mw.title.getCurrentTitle()
local aan = Navigator.new(args, cfg, currentTitle)
return tostring(aan)
end
function p.aan(frame)
local args = require('Module:Arguments').getArgs(frame, {
wrappers = 'Template:Archive',
})
return p._aan(args)
end
return p