Difference between revisions of "Module:Infobox"

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Module:Parameter_names_example>Primefac
(Undid revision 855063393 by Jdlrobson (talk) rather problematic change mentioned on talk page, reverting until it can be sorted)
 
Module:Infobox>Frietjes
(per discussion on the talkpage, now supports |autoheaders=y)
Line 1: Line 1:
{{#invoke:Infobox|infobox}}<includeonly>{{template other|{{#ifeq:{{PAGENAME}}|Infobox||{{#ifeq:{{str left|{{SUBPAGENAME}}|7}}|Infobox|[[Category:Infobox templates|{{remove first word|{{SUBPAGENAME}}}}]]}}}}|}}</includeonly><noinclude>
+
--
{{documentation}}
+
-- This module implements {{Infobox}}
<!-- Categories go in the /doc subpage, and interwikis go in Wikidata. -->
+
--
</noinclude>
+
 
 +
local p = {}
 +
 
 +
local navbar = require('Module:Navbar')._navbar
 +
 
 +
local args = {}
 +
local origArgs = {}
 +
local root
 +
 
 +
local function notempty( s ) return s and s:match( '%S' ) end
 +
 
 +
local function fixChildBoxes(sval, tt)
 +
if notempty(sval) then
 +
local marker = '<span class=special_infobox_marker>'
 +
local s = sval
 +
s = mw.ustring.gsub(s, '(<%s*[Tt][Rr])', marker .. '%1')
 +
s = mw.ustring.gsub(s, '(</[Tt][Rr]%s*>)', '%1' .. marker)
 +
if s:match(marker) then
 +
s = mw.ustring.gsub(s, marker .. '%s*' .. marker, '')
 +
s = mw.ustring.gsub(s, '([\r\n]|-[^\r\n]*[\r\n])%s*' .. marker, '%1')
 +
s = mw.ustring.gsub(s, marker .. '%s*([\r\n]|-)', '%1')
 +
s = mw.ustring.gsub(s, '(</[Cc][Aa][Pp][Tt][Ii][Oo][Nn]%s*>%s*)' .. marker, '%1')
 +
s = mw.ustring.gsub(s, '(<%s*[Tt][Aa][Bb][Ll][Ee][^<>]*>%s*)' .. marker, '%1')
 +
s = mw.ustring.gsub(s, '^(%{|[^\r\n]*[\r\n]%s*)' .. marker, '%1')
 +
s = mw.ustring.gsub(s, '([\r\n]%{|[^\r\n]*[\r\n]%s*)' .. marker, '%1')
 +
s = mw.ustring.gsub(s, marker .. '(%s*</[Tt][Aa][Bb][Ll][Ee]%s*>)', '%1')
 +
s = mw.ustring.gsub(s, marker .. '(%s*\n|%})', '%1')
 +
end
 +
if s:match(marker) then
 +
local subcells = mw.text.split(s, marker)
 +
s = ''
 +
for k = 1, #subcells do
 +
if k == 1 then
 +
s = s .. subcells[k] .. '</' .. tt .. '></tr>'
 +
elseif k == #subcells then
 +
local rowstyle = ' style="display:none"'
 +
if notempty(subcells[k]) then rowstyle = '' end
 +
s = s .. '<tr' .. rowstyle ..'><' .. tt .. ' colspan=2>\n' .. subcells[k]
 +
elseif notempty(subcells[k]) then
 +
if (k % 2) == 0 then
 +
s = s .. subcells[k]
 +
else
 +
s = s .. '<tr><' .. tt .. ' colspan=2>\n' .. subcells[k] .. '</' .. tt .. '></tr>'
 +
end
 +
end
 +
end
 +
end
 +
-- the next two lines add a newline at the end of lists for the PHP parser
 +
-- https://en.wikipedia.org/w/index.php?title=Template_talk:Infobox_musical_artist&oldid=849054481
 +
-- remove when [[:phab:T191516]] is fixed or OBE
 +
s = mw.ustring.gsub(s, '([\r\n][%*#;:][^\r\n]*)$', '%1\n')
 +
s = mw.ustring.gsub(s, '^([%*#;:][^\r\n]*)$', '%1\n')
 +
s = mw.ustring.gsub(s, '^([%*#;:])', '\n%1')
 +
s = mw.ustring.gsub(s, '^(%{%|)', '\n%1')
 +
return s
 +
else
 +
return sval
 +
end
 +
end
 +
 
 +
local function union(t1, t2)
 +
-- Returns the union of the values of two tables, as a sequence.
 +
local vals = {}
 +
for k, v in pairs(t1) do
 +
vals[v] = true
 +
end
 +
for k, v in pairs(t2) do
 +
vals[v] = true
 +
end
 +
local ret = {}
 +
for k, v in pairs(vals) do
 +
table.insert(ret, k)
 +
end
 +
return ret
 +
end
 +
 
 +
local function getArgNums(prefix)
 +
-- Returns a table containing the numbers of the arguments that exist
 +
-- for the specified prefix. For example, if the prefix was 'data', and
 +
-- 'data1', 'data2', and 'data5' 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
 +
 
 +
local function addRow(rowArgs)
 +
-- Adds a row to the infobox, with either a header cell
 +
-- or a label/data cell combination.
 +
if rowArgs.header and rowArgs.header ~= '_BLANK_' then
 +
root
 +
:tag('tr')
 +
:addClass(rowArgs.rowclass)
 +
:cssText(rowArgs.rowstyle)
 +
:attr('id', rowArgs.rowid)
 +
:tag('th')
 +
:attr('colspan', 2)
 +
:attr('id', rowArgs.headerid)
 +
:addClass(rowArgs.class)
 +
:addClass(args.headerclass)
 +
:css('text-align', 'center')
 +
:cssText(args.headerstyle)
 +
:cssText(rowArgs.rowcellstyle)
 +
:wikitext(fixChildBoxes(rowArgs.header, 'th'))
 +
if rowArgs.data then
 +
root:wikitext('[[Category:Pages which use infobox templates with ignored data cells]]')
 +
end
 +
elseif rowArgs.data then
 +
if not rowArgs.data:gsub('%[%[%s*[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]%s*:[^]]*]]', ''):match('^%S') then
 +
rowArgs.rowstyle = 'display:none'
 +
end
 +
local row = root:tag('tr')
 +
row:addClass(rowArgs.rowclass)
 +
row:cssText(rowArgs.rowstyle)
 +
row:attr('id', rowArgs.rowid)
 +
if rowArgs.label then
 +
row
 +
:tag('th')
 +
:attr('scope', 'row')
 +
:attr('id', rowArgs.labelid)
 +
:cssText(args.labelstyle)
 +
:cssText(rowArgs.rowcellstyle)
 +
:wikitext(rowArgs.label)
 +
:done()
 +
end
 +
 
 +
local dataCell = row:tag('td')
 +
if not rowArgs.label then
 +
dataCell
 +
:attr('colspan', 2)
 +
:css('text-align', 'center')
 +
end
 +
dataCell
 +
:attr('id', rowArgs.dataid)
 +
:addClass(rowArgs.class)
 +
:cssText(rowArgs.datastyle)
 +
:cssText(rowArgs.rowcellstyle)
 +
:wikitext(fixChildBoxes(rowArgs.data, 'td'))
 +
end
 +
end
 +
 
 +
local function renderTitle()
 +
if not args.title then return end
 +
 
 +
root
 +
:tag('caption')
 +
:addClass(args.titleclass)
 +
:cssText(args.titlestyle)
 +
:wikitext(args.title)
 +
end
 +
 
 +
local function renderAboveRow()
 +
if not args.above then return end
 +
 
 +
root
 +
:tag('tr')
 +
:tag('th')
 +
:attr('colspan', 2)
 +
:addClass(args.aboveclass)
 +
:css('text-align', 'center')
 +
:css('font-size', '125%')
 +
:css('font-weight', 'bold')
 +
:cssText(args.abovestyle)
 +
:wikitext(fixChildBoxes(args.above,'th'))
 +
end
 +
 
 +
local function renderBelowRow()
 +
if not args.below then return end
 +
 
 +
root
 +
:tag('tr')
 +
:tag('td')
 +
:attr('colspan', '2')
 +
:addClass(args.belowclass)
 +
:css('text-align', 'center')
 +
:cssText(args.belowstyle)
 +
:wikitext(fixChildBoxes(args.below,'td'))
 +
end
 +
 
 +
local function renderSubheaders()
 +
if args.subheader then
 +
args.subheader1 = args.subheader
 +
end
 +
if args.subheaderrowclass then
 +
args.subheaderrowclass1 = args.subheaderrowclass
 +
end
 +
local subheadernums = getArgNums('subheader')
 +
for k, num in ipairs(subheadernums) do
 +
addRow({
 +
data = args['subheader' .. tostring(num)],
 +
datastyle = args.subheaderstyle,
 +
rowcellstyle = args['subheaderstyle' .. tostring(num)],
 +
class = args.subheaderclass,
 +
rowclass = args['subheaderrowclass' .. tostring(num)]
 +
})
 +
end
 +
end
 +
 
 +
local function renderImages()
 +
if args.image then
 +
args.image1 = args.image
 +
end
 +
if args.caption then
 +
args.caption1 = args.caption
 +
end
 +
local imagenums = getArgNums('image')
 +
for k, num in ipairs(imagenums) do
 +
local caption = args['caption' .. tostring(num)]
 +
local data = mw.html.create():wikitext(args['image' .. tostring(num)])
 +
if caption then
 +
data
 +
:tag('div')
 +
:cssText(args.captionstyle)
 +
:wikitext(caption)
 +
end
 +
addRow({
 +
data = tostring(data),
 +
datastyle = args.imagestyle,
 +
class = args.imageclass,
 +
rowclass = args['imagerowclass' .. tostring(num)]
 +
})
 +
end
 +
end
 +
 
 +
local function preprocessRows()
 +
-- Gets the union of the header and data argument numbers,
 +
-- and renders them all in order using addRow.
 +
local rownums = union(getArgNums('header'), getArgNums('data'))
 +
table.sort(rownums)
 +
local lastheader
 +
for k, num in ipairs(rownums) do
 +
if args['header' .. tostring(num)] then
 +
if lastheader then
 +
args['header' .. tostring(lastheader)] = nil
 +
end
 +
lastheader = num
 +
elseif args['data' .. tostring(num)] and args['data' .. tostring(num)]:gsub('%[%[%s*[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]%s*:[^]]*]]', ''):match('^%S') then
 +
local data = args['data' .. tostring(num)]
 +
if data:gsub('%[%[%s*[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]%s*:[^]]*]]', ''):match('%S') then
 +
lastheader = nil
 +
end
 +
end
 +
end
 +
if lastheader then
 +
args['header' .. tostring(lastheader)] = nil
 +
end
 +
end
 +
 
 +
local function renderRows()
 +
-- Gets the union of the header and data argument numbers,
 +
-- and renders them all in order using addRow.
 +
local rownums = union(getArgNums('header'), getArgNums('data'))
 +
table.sort(rownums)
 +
for k, num in ipairs(rownums) do
 +
addRow({
 +
header = args['header' .. tostring(num)],
 +
label = args['label' .. tostring(num)],
 +
data = args['data' .. tostring(num)],
 +
datastyle = args.datastyle,
 +
class = args['class' .. tostring(num)],
 +
rowclass = args['rowclass' .. tostring(num)],
 +
rowstyle = args['rowstyle' .. tostring(num)],
 +
rowcellstyle = args['rowcellstyle' .. tostring(num)],
 +
dataid = args['dataid' .. tostring(num)],
 +
labelid = args['labelid' .. tostring(num)],
 +
headerid = args['headerid' .. tostring(num)],
 +
rowid = args['rowid' .. tostring(num)]
 +
})
 +
end
 +
end
 +
 
 +
local function renderNavBar()
 +
if not args.name then return end
 +
 
 +
root
 +
:tag('tr')
 +
:tag('td')
 +
:attr('colspan', '2')
 +
:css('text-align', 'right')
 +
:wikitext(navbar{
 +
args.name,
 +
mini = 1,
 +
})
 +
end
 +
 
 +
local function renderItalicTitle()
 +
local italicTitle = args['italic title'] and mw.ustring.lower(args['italic title'])
 +
if italicTitle == '' or italicTitle == 'force' or italicTitle == 'yes' then
 +
root:wikitext(mw.getCurrentFrame():expandTemplate({title = 'italic title'}))
 +
end
 +
end
 +
 
 +
local function renderTrackingCategories()
 +
if args.decat ~= 'yes' then
 +
if args.child == 'yes' then
 +
if args.title then
 +
root:wikitext('[[Category:Pages which use embedded infobox templates with the title parameter]]')
 +
end
 +
elseif #(getArgNums('data')) == 0 and mw.title.getCurrentTitle().namespace == 0 then
 +
root:wikitext('[[Category:Articles which use infobox templates with no data rows]]')
 +
end
 +
end
 +
end
 +
 
 +
local function _infobox()
 +
-- Specify the overall layout of the infobox, with special settings
 +
-- if the infobox is used as a 'child' inside another infobox.
 +
if args.child ~= 'yes' then
 +
root = mw.html.create('table')
 +
 
 +
root
 +
:addClass((args.subbox ~= 'yes') and 'infobox' or nil)
 +
:addClass(args.bodyclass)
 +
 
 +
if args.subbox == 'yes' then
 +
root
 +
:css('padding', '0')
 +
:css('border', 'none')
 +
:css('margin', '-3px')
 +
:css('width', 'auto')
 +
:css('min-width', '100%')
 +
:css('font-size', '100%')
 +
:css('clear', 'none')
 +
:css('float', 'none')
 +
:css('background-color', 'transparent')
 +
else
 +
root
 +
:css('width', '22em')
 +
end
 +
root
 +
:cssText(args.bodystyle)
 +
 
 +
renderTitle()
 +
renderAboveRow()
 +
else
 +
root = mw.html.create()
 +
 
 +
root
 +
:wikitext(args.title)
 +
end
 +
 
 +
renderSubheaders()
 +
renderImages()
 +
if args.autoheaders then
 +
preprocessRows()
 +
end
 +
renderRows()
 +
renderBelowRow()
 +
renderNavBar()
 +
renderItalicTitle()
 +
renderTrackingCategories()
 +
 
 +
return tostring(root)
 +
end
 +
 
 +
local function preprocessSingleArg(argName)
 +
-- If the argument exists and isn't blank, add it to the argument table.
 +
-- Blank arguments are treated as nil to match the behaviour of ParserFunctions.
 +
if origArgs[argName] and origArgs[argName] ~= '' then
 +
args[argName] = origArgs[argName]
 +
end
 +
end
 +
 
 +
local function preprocessArgs(prefixTable, step)
 +
-- Assign the parameters with the given prefixes to the args table, in order, in batches
 +
-- of the step size specified. This is to prevent references etc. from appearing in the
 +
-- wrong order. The prefixTable should be an array containing tables, each of which has
 +
-- two possible fields, a "prefix" string and a "depend" table. The function always parses
 +
-- parameters containing the "prefix" string, but only parses parameters in the "depend"
 +
-- table if the prefix parameter is present and non-blank.
 +
if type(prefixTable) ~= 'table' then
 +
error("Non-table value detected for the prefix table", 2)
 +
end
 +
if type(step) ~= 'number' then
 +
error("Invalid step value detected", 2)
 +
end
 +
 
 +
-- Get arguments without a number suffix, and check for bad input.
 +
for i,v in ipairs(prefixTable) do
 +
if type(v) ~= 'table' or type(v.prefix) ~= "string" or (v.depend and type(v.depend) ~= 'table') then
 +
error('Invalid input detected to preprocessArgs prefix table', 2)
 +
end
 +
preprocessSingleArg(v.prefix)
 +
-- Only parse the depend parameter if the prefix parameter is present and not blank.
 +
if args[v.prefix] and v.depend then
 +
for j, dependValue in ipairs(v.depend) do
 +
if type(dependValue) ~= 'string' then
 +
error('Invalid "depend" parameter value detected in preprocessArgs')
 +
end
 +
preprocessSingleArg(dependValue)
 +
end
 +
end
 +
end
 +
 
 +
-- Get arguments with number suffixes.
 +
local a = 1 -- Counter variable.
 +
local moreArgumentsExist = true
 +
while moreArgumentsExist == true do
 +
moreArgumentsExist = false
 +
for i = a, a + step - 1 do
 +
for j,v in ipairs(prefixTable) do
 +
local prefixArgName = v.prefix .. tostring(i)
 +
if origArgs[prefixArgName] then
 +
moreArgumentsExist = true -- Do another loop if any arguments are found, even blank ones.
 +
preprocessSingleArg(prefixArgName)
 +
end
 +
-- Process the depend table if the prefix argument is present and not blank, or
 +
-- we are processing "prefix1" and "prefix" is present and not blank, and
 +
-- if the depend table is present.
 +
if v.depend and (args[prefixArgName] or (i == 1 and args[v.prefix])) then
 +
for j,dependValue in ipairs(v.depend) do
 +
local dependArgName = dependValue .. tostring(i)
 +
preprocessSingleArg(dependArgName)
 +
end
 +
end
 +
end
 +
end
 +
a = a + step
 +
end
 +
end
 +
 
 +
local function parseDataParameters()
 +
-- Parse the data parameters in the same order that the old {{infobox}} did, so that
 +
-- references etc. will display in the expected places. Parameters that depend on
 +
-- another parameter are only processed if that parameter is present, to avoid
 +
-- phantom references appearing in article reference lists.
 +
preprocessSingleArg('autoheaders')
 +
preprocessSingleArg('child')
 +
preprocessSingleArg('bodyclass')
 +
preprocessSingleArg('subbox')
 +
preprocessSingleArg('bodystyle')
 +
preprocessSingleArg('title')
 +
preprocessSingleArg('titleclass')
 +
preprocessSingleArg('titlestyle')
 +
preprocessSingleArg('above')
 +
preprocessSingleArg('aboveclass')
 +
preprocessSingleArg('abovestyle')
 +
preprocessArgs({
 +
{prefix = 'subheader', depend = {'subheaderstyle', 'subheaderrowclass'}}
 +
}, 10)
 +
preprocessSingleArg('subheaderstyle')
 +
preprocessSingleArg('subheaderclass')
 +
preprocessArgs({
 +
{prefix = 'image', depend = {'caption', 'imagerowclass'}}
 +
}, 10)
 +
preprocessSingleArg('captionstyle')
 +
preprocessSingleArg('imagestyle')
 +
preprocessSingleArg('imageclass')
 +
preprocessArgs({
 +
{prefix = 'header'},
 +
{prefix = 'data', depend = {'label'}},
 +
{prefix = 'rowclass'},
 +
{prefix = 'rowstyle'},
 +
{prefix = 'rowcellstyle'},
 +
{prefix = 'class'},
 +
{prefix = 'dataid'},
 +
{prefix = 'labelid'},
 +
{prefix = 'headerid'},
 +
{prefix = 'rowid'}
 +
}, 50)
 +
preprocessSingleArg('headerclass')
 +
preprocessSingleArg('headerstyle')
 +
preprocessSingleArg('labelstyle')
 +
preprocessSingleArg('datastyle')
 +
preprocessSingleArg('below')
 +
preprocessSingleArg('belowclass')
 +
preprocessSingleArg('belowstyle')
 +
preprocessSingleArg('name')
 +
args['italic title'] = origArgs['italic title'] -- different behaviour if blank or absent
 +
preprocessSingleArg('decat')
 +
end
 +
 
 +
function p.infobox(frame)
 +
-- If called via #invoke, use the args passed into the invoking template.
 +
-- Otherwise, for testing purposes, assume args are being passed directly in.
 +
if frame == mw.getCurrentFrame() then
 +
origArgs = frame:getParent().args
 +
else
 +
origArgs = frame
 +
end
 +
 +
parseDataParameters()
 +
 +
return _infobox()
 +
end
 +
 
 +
function p.infoboxTemplate(frame)
 +
-- For calling via #invoke within a template
 +
origArgs = {}
 +
for k,v in pairs(frame.args) do origArgs[k] = mw.text.trim(v) end
 +
 +
parseDataParameters()
 +
 +
return _infobox()
 +
end
 +
return p

Revision as of 19:04, 25 June 2020

Lua error: Internal error: The interpreter exited with status 127. Lua error: Internal error: The interpreter exited with status 127. Lua error: Internal error: The interpreter exited with status 127.

Module:Infobox is a module that implements the {{Infobox}} template. Please see the template page for usage instructions.

Tracking categories


Script error: Lua error: Internal error: The interpreter exited with status 127.

--
-- This module implements {{Infobox}}
--

local p = {}

local navbar = require('Module:Navbar')._navbar

local args = {}
local origArgs = {}
local root

local function notempty( s ) return s and s:match( '%S' ) end

local function fixChildBoxes(sval, tt)
	if notempty(sval) then
		local marker = '<span class=special_infobox_marker>'
		local s = sval
		s = mw.ustring.gsub(s, '(<%s*[Tt][Rr])', marker .. '%1')
		s = mw.ustring.gsub(s, '(</[Tt][Rr]%s*>)', '%1' .. marker)
		if s:match(marker) then
			s = mw.ustring.gsub(s, marker .. '%s*' .. marker, '')
			s = mw.ustring.gsub(s, '([\r\n]|-[^\r\n]*[\r\n])%s*' .. marker, '%1')
			s = mw.ustring.gsub(s, marker .. '%s*([\r\n]|-)', '%1')
			s = mw.ustring.gsub(s, '(</[Cc][Aa][Pp][Tt][Ii][Oo][Nn]%s*>%s*)' .. marker, '%1')
			s = mw.ustring.gsub(s, '(<%s*[Tt][Aa][Bb][Ll][Ee][^<>]*>%s*)' .. marker, '%1')
			s = mw.ustring.gsub(s, '^(%{|[^\r\n]*[\r\n]%s*)' .. marker, '%1')
			s = mw.ustring.gsub(s, '([\r\n]%{|[^\r\n]*[\r\n]%s*)' .. marker, '%1')
			s = mw.ustring.gsub(s, marker .. '(%s*</[Tt][Aa][Bb][Ll][Ee]%s*>)', '%1')
			s = mw.ustring.gsub(s, marker .. '(%s*\n|%})', '%1')
		end
		if s:match(marker) then
			local subcells = mw.text.split(s, marker)
			s = ''
			for k = 1, #subcells do
				if k == 1 then
					s = s .. subcells[k] .. '</' .. tt .. '></tr>'
				elseif k == #subcells then
					local rowstyle = ' style="display:none"'
					if notempty(subcells[k]) then rowstyle = ''	end
					s = s .. '<tr' .. rowstyle ..'><' .. tt .. ' colspan=2>\n' .. subcells[k]
				elseif notempty(subcells[k]) then
					if (k % 2) == 0 then
						s = s .. subcells[k]
					else
						s = s .. '<tr><' .. tt .. ' colspan=2>\n' .. subcells[k] .. '</' .. tt .. '></tr>'
					end
				end
			end
		end
		-- the next two lines add a newline at the end of lists for the PHP parser
		-- https://en.wikipedia.org/w/index.php?title=Template_talk:Infobox_musical_artist&oldid=849054481
		-- remove when [[:phab:T191516]] is fixed or OBE
		s = mw.ustring.gsub(s, '([\r\n][%*#;:][^\r\n]*)$', '%1\n')
		s = mw.ustring.gsub(s, '^([%*#;:][^\r\n]*)$', '%1\n')
		s = mw.ustring.gsub(s, '^([%*#;:])', '\n%1')
		s = mw.ustring.gsub(s, '^(%{%|)', '\n%1')
		return s
	else
		return sval
	end
end

local function union(t1, t2)
	-- Returns the union of the values of two tables, as a sequence.
	local vals = {}
	for k, v in pairs(t1) do
		vals[v] = true
	end
	for k, v in pairs(t2) do
		vals[v] = true
	end
	local ret = {}
	for k, v in pairs(vals) do
		table.insert(ret, k)
	end
	return ret
end

local function getArgNums(prefix)
	-- Returns a table containing the numbers of the arguments that exist
	-- for the specified prefix. For example, if the prefix was 'data', and
	-- 'data1', 'data2', and 'data5' 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

local function addRow(rowArgs)
	-- Adds a row to the infobox, with either a header cell
	-- or a label/data cell combination.
	if rowArgs.header and rowArgs.header ~= '_BLANK_' then
		root
			:tag('tr')
				:addClass(rowArgs.rowclass)
				:cssText(rowArgs.rowstyle)
				:attr('id', rowArgs.rowid)
				:tag('th')
					:attr('colspan', 2)
					:attr('id', rowArgs.headerid)
					:addClass(rowArgs.class)
					:addClass(args.headerclass)
					:css('text-align', 'center')
					:cssText(args.headerstyle)
					:cssText(rowArgs.rowcellstyle)
					:wikitext(fixChildBoxes(rowArgs.header, 'th'))
		if rowArgs.data then
			root:wikitext('[[Category:Pages which use infobox templates with ignored data cells]]')
		end
	elseif rowArgs.data then
		if not rowArgs.data:gsub('%[%[%s*[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]%s*:[^]]*]]', ''):match('^%S') then
			rowArgs.rowstyle = 'display:none'
		end
		local row = root:tag('tr')
		row:addClass(rowArgs.rowclass)
		row:cssText(rowArgs.rowstyle)
		row:attr('id', rowArgs.rowid)
		if rowArgs.label then
			row
				:tag('th')
					:attr('scope', 'row')
					:attr('id', rowArgs.labelid)
					:cssText(args.labelstyle)
					:cssText(rowArgs.rowcellstyle)
					:wikitext(rowArgs.label)
					:done()
		end

		local dataCell = row:tag('td')
		if not rowArgs.label then
			dataCell
				:attr('colspan', 2)
				:css('text-align', 'center')
		end
		dataCell
			:attr('id', rowArgs.dataid)
			:addClass(rowArgs.class)
			:cssText(rowArgs.datastyle)
			:cssText(rowArgs.rowcellstyle)
			:wikitext(fixChildBoxes(rowArgs.data, 'td'))
	end
end

local function renderTitle()
	if not args.title then return end

	root
		:tag('caption')
			:addClass(args.titleclass)
			:cssText(args.titlestyle)
			:wikitext(args.title)
end

local function renderAboveRow()
	if not args.above then return end

	root
		:tag('tr')
			:tag('th')
				:attr('colspan', 2)
				:addClass(args.aboveclass)
				:css('text-align', 'center')
				:css('font-size', '125%')
				:css('font-weight', 'bold')
				:cssText(args.abovestyle)
				:wikitext(fixChildBoxes(args.above,'th'))
end

local function renderBelowRow()
	if not args.below then return end

	root
		:tag('tr')
			:tag('td')
				:attr('colspan', '2')
				:addClass(args.belowclass)
				:css('text-align', 'center')
				:cssText(args.belowstyle)
				:wikitext(fixChildBoxes(args.below,'td'))
end

local function renderSubheaders()
	if args.subheader then
		args.subheader1 = args.subheader
	end
	if args.subheaderrowclass then
		args.subheaderrowclass1 = args.subheaderrowclass
	end
	local subheadernums = getArgNums('subheader')
	for k, num in ipairs(subheadernums) do
		addRow({
			data = args['subheader' .. tostring(num)],
			datastyle = args.subheaderstyle,
			rowcellstyle = args['subheaderstyle' .. tostring(num)],
			class = args.subheaderclass,
			rowclass = args['subheaderrowclass' .. tostring(num)]
		})
	end
end

local function renderImages()
	if args.image then
		args.image1 = args.image
	end
	if args.caption then
		args.caption1 = args.caption
	end
	local imagenums = getArgNums('image')
	for k, num in ipairs(imagenums) do
		local caption = args['caption' .. tostring(num)]
		local data = mw.html.create():wikitext(args['image' .. tostring(num)])
		if caption then
			data
				:tag('div')
					:cssText(args.captionstyle)
					:wikitext(caption)
		end
		addRow({
			data = tostring(data),
			datastyle = args.imagestyle,
			class = args.imageclass,
			rowclass = args['imagerowclass' .. tostring(num)]
		})
	end
end

local function preprocessRows()
	-- Gets the union of the header and data argument numbers,
	-- and renders them all in order using addRow.
	local rownums = union(getArgNums('header'), getArgNums('data'))
	table.sort(rownums)
	local lastheader
	for k, num in ipairs(rownums) do
		if args['header' .. tostring(num)] then
			if lastheader then
				args['header' .. tostring(lastheader)] = nil
			end
			lastheader = num
		elseif args['data' .. tostring(num)] and args['data' .. tostring(num)]:gsub('%[%[%s*[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]%s*:[^]]*]]', ''):match('^%S') then
			local data = args['data' .. tostring(num)]
			if data:gsub('%[%[%s*[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]%s*:[^]]*]]', ''):match('%S') then
				lastheader = nil
			end
		end
	end
	if lastheader then
		args['header' .. tostring(lastheader)] = nil
	end
end

local function renderRows()
	-- Gets the union of the header and data argument numbers,
	-- and renders them all in order using addRow.
	local rownums = union(getArgNums('header'), getArgNums('data'))
	table.sort(rownums)
	for k, num in ipairs(rownums) do
		addRow({
			header = args['header' .. tostring(num)],
			label = args['label' .. tostring(num)],
			data = args['data' .. tostring(num)],
			datastyle = args.datastyle,
			class = args['class' .. tostring(num)],
			rowclass = args['rowclass' .. tostring(num)],
			rowstyle = args['rowstyle' .. tostring(num)],
			rowcellstyle = args['rowcellstyle' .. tostring(num)],
			dataid = args['dataid' .. tostring(num)],
			labelid = args['labelid' .. tostring(num)],
			headerid = args['headerid' .. tostring(num)],
			rowid = args['rowid' .. tostring(num)]
		})
	end
end

local function renderNavBar()
	if not args.name then return end

	root
		:tag('tr')
			:tag('td')
				:attr('colspan', '2')
				:css('text-align', 'right')
				:wikitext(navbar{
					args.name,
					mini = 1,
				})
end

local function renderItalicTitle()
	local italicTitle = args['italic title'] and mw.ustring.lower(args['italic title'])
	if italicTitle == '' or italicTitle == 'force' or italicTitle == 'yes' then
		root:wikitext(mw.getCurrentFrame():expandTemplate({title = 'italic title'}))
	end
end

local function renderTrackingCategories()
	if args.decat ~= 'yes' then
		if args.child == 'yes' then
			if args.title then
				root:wikitext('[[Category:Pages which use embedded infobox templates with the title parameter]]')
			end
		elseif #(getArgNums('data')) == 0 and mw.title.getCurrentTitle().namespace == 0 then
			root:wikitext('[[Category:Articles which use infobox templates with no data rows]]')
		end
	end
end

local function _infobox()
	-- Specify the overall layout of the infobox, with special settings
	-- if the infobox is used as a 'child' inside another infobox.
	if args.child ~= 'yes' then
		root = mw.html.create('table')

		root
			:addClass((args.subbox ~= 'yes') and 'infobox' or nil)
			:addClass(args.bodyclass)

			if args.subbox == 'yes' then
				root
					:css('padding', '0')
					:css('border', 'none')
					:css('margin', '-3px')
					:css('width', 'auto')
					:css('min-width', '100%')
					:css('font-size', '100%')
					:css('clear', 'none')
					:css('float', 'none')
					:css('background-color', 'transparent')
			else
				root
					:css('width', '22em')
			end
		root
			:cssText(args.bodystyle)

		renderTitle()
		renderAboveRow()
	else
		root = mw.html.create()

		root
			:wikitext(args.title)
	end

	renderSubheaders()
	renderImages()
	if args.autoheaders then
		preprocessRows()
	end
	renderRows()
	renderBelowRow()
	renderNavBar()
	renderItalicTitle()
	renderTrackingCategories()

	return tostring(root)
end

local function preprocessSingleArg(argName)
	-- If the argument exists and isn't blank, add it to the argument table.
	-- Blank arguments are treated as nil to match the behaviour of ParserFunctions.
	if origArgs[argName] and origArgs[argName] ~= '' then
		args[argName] = origArgs[argName]
	end
end

local function preprocessArgs(prefixTable, step)
	-- Assign the parameters with the given prefixes to the args table, in order, in batches
	-- of the step size specified. This is to prevent references etc. from appearing in the
	-- wrong order. The prefixTable should be an array containing tables, each of which has
	-- two possible fields, a "prefix" string and a "depend" table. The function always parses
	-- parameters containing the "prefix" string, but only parses parameters in the "depend"
	-- table if the prefix parameter is present and non-blank.
	if type(prefixTable) ~= 'table' then
		error("Non-table value detected for the prefix table", 2)
	end
	if type(step) ~= 'number' then
		error("Invalid step value detected", 2)
	end

	-- Get arguments without a number suffix, and check for bad input.
	for i,v in ipairs(prefixTable) do
		if type(v) ~= 'table' or type(v.prefix) ~= "string" or (v.depend and type(v.depend) ~= 'table') then
			error('Invalid input detected to preprocessArgs prefix table', 2)
		end
		preprocessSingleArg(v.prefix)
		-- Only parse the depend parameter if the prefix parameter is present and not blank.
		if args[v.prefix] and v.depend then
			for j, dependValue in ipairs(v.depend) do
				if type(dependValue) ~= 'string' then
					error('Invalid "depend" parameter value detected in preprocessArgs')
				end
				preprocessSingleArg(dependValue)
			end
		end
	end

	-- Get arguments with number suffixes.
	local a = 1 -- Counter variable.
	local moreArgumentsExist = true
	while moreArgumentsExist == true do
		moreArgumentsExist = false
		for i = a, a + step - 1 do
			for j,v in ipairs(prefixTable) do
				local prefixArgName = v.prefix .. tostring(i)
				if origArgs[prefixArgName] then
					moreArgumentsExist = true -- Do another loop if any arguments are found, even blank ones.
					preprocessSingleArg(prefixArgName)
				end
				-- Process the depend table if the prefix argument is present and not blank, or
				-- we are processing "prefix1" and "prefix" is present and not blank, and
				-- if the depend table is present.
				if v.depend and (args[prefixArgName] or (i == 1 and args[v.prefix])) then
					for j,dependValue in ipairs(v.depend) do
						local dependArgName = dependValue .. tostring(i)
						preprocessSingleArg(dependArgName)
					end
				end
			end
		end
		a = a + step
	end
end

local function parseDataParameters()
	-- Parse the data parameters in the same order that the old {{infobox}} did, so that
	-- references etc. will display in the expected places. Parameters that depend on
	-- another parameter are only processed if that parameter is present, to avoid
	-- phantom references appearing in article reference lists.
	preprocessSingleArg('autoheaders')
	preprocessSingleArg('child')
	preprocessSingleArg('bodyclass')
	preprocessSingleArg('subbox')
	preprocessSingleArg('bodystyle')
	preprocessSingleArg('title')
	preprocessSingleArg('titleclass')
	preprocessSingleArg('titlestyle')
	preprocessSingleArg('above')
	preprocessSingleArg('aboveclass')
	preprocessSingleArg('abovestyle')
	preprocessArgs({
		{prefix = 'subheader', depend = {'subheaderstyle', 'subheaderrowclass'}}
	}, 10)
	preprocessSingleArg('subheaderstyle')
	preprocessSingleArg('subheaderclass')
	preprocessArgs({
		{prefix = 'image', depend = {'caption', 'imagerowclass'}}
	}, 10)
	preprocessSingleArg('captionstyle')
	preprocessSingleArg('imagestyle')
	preprocessSingleArg('imageclass')
	preprocessArgs({
		{prefix = 'header'},
		{prefix = 'data', depend = {'label'}},
		{prefix = 'rowclass'},
		{prefix = 'rowstyle'},
		{prefix = 'rowcellstyle'},
		{prefix = 'class'},
		{prefix = 'dataid'},
		{prefix = 'labelid'},
		{prefix = 'headerid'},
		{prefix = 'rowid'}
	}, 50)
	preprocessSingleArg('headerclass')
	preprocessSingleArg('headerstyle')
	preprocessSingleArg('labelstyle')
	preprocessSingleArg('datastyle')
	preprocessSingleArg('below')
	preprocessSingleArg('belowclass')
	preprocessSingleArg('belowstyle')
	preprocessSingleArg('name')
	args['italic title'] = origArgs['italic title'] -- different behaviour if blank or absent
	preprocessSingleArg('decat')
end

function p.infobox(frame)
	-- If called via #invoke, use the args passed into the invoking template.
	-- Otherwise, for testing purposes, assume args are being passed directly in.
	if frame == mw.getCurrentFrame() then
		origArgs = frame:getParent().args
	else
		origArgs = frame
	end
	
	parseDataParameters()
	
	return _infobox()
end

function p.infoboxTemplate(frame)
	-- For calling via #invoke within a template
	origArgs = {}
	for k,v in pairs(frame.args) do origArgs[k] = mw.text.trim(v) end
	
	parseDataParameters()
	
	return _infobox()
end
return p