Module:Infobox: Difference between revisions

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(keep module up to date with wikipedia)
(Undo revision 12488 by Pronoun (talk))
Tag: Undo
Line 5: Line 5:
local empty_row_categories = {}
local empty_row_categories = {}
local category_in_empty_row_pattern = '%[%[%s*[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]%s*:[^]]*]]'
local category_in_empty_row_pattern = '%[%[%s*[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]%s*:[^]]*]]'
local has_rows = false


local function fixChildBoxes(sval, tt)
local function fixChildBoxes(sval, tt)
Line 13: Line 12:
local marker = '<span class=special_infobox_marker>'
local marker = '<span class=special_infobox_marker>'
local s = sval
local s = sval
-- start moving templatestyles and categories inside of table rows
local slast = ''
while slast ~= s do
slast = s
s = mw.ustring.gsub(s, '(</[Tt][Rr]%s*>%s*)(%[%[%s*[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]%s*:[^]]*%]%])', '%2%1')
s = mw.ustring.gsub(s, '(</[Tt][Rr]%s*>%s*)(\127[^\127]*UNIQ%-%-templatestyles%-%x+%-QINU[^\127]*\127)', '%2%1')
end
-- end moving templatestyles and categories inside of table rows
s = mw.ustring.gsub(s, '(<%s*[Tt][Rr])', marker .. '%1')
s = mw.ustring.gsub(s, '(<%s*[Tt][Rr])', marker .. '%1')
s = mw.ustring.gsub(s, '(</[Tt][Rr]%s*>)', '%1' .. marker)
s = mw.ustring.gsub(s, '(</[Tt][Rr]%s*>)', '%1' .. marker)
Line 65: Line 56:
else
else
return sval
return sval
end
end
-- Cleans empty tables
local function cleanInfobox()
root = tostring(root)
if has_rows == false then
root = mw.ustring.gsub(root, '<table[^<>]*>%s*</table>', '')
end
end
end
end
Line 111: Line 94:
if rowArgs.header and rowArgs.header ~= '_BLANK_' then
if rowArgs.header and rowArgs.header ~= '_BLANK_' then
has_rows = true
root
root
:tag('tr')
:tag('tr')
Line 127: Line 109:
if rowArgs.data then
if rowArgs.data then
root:wikitext(
root:wikitext(
'[[Category:Pages using infobox templates with ignored data cells]]'
'[[Category:Pages which use infobox templates with ignored data cells]]'
)
)
end
end
elseif rowArgs.data and rowArgs.data:gsub(
elseif rowArgs.data and rowArgs.data:gsub(
category_in_empty_row_pattern, ''
category_in_empty_row_pattern, ''
):match('^%S') then
):match('^%S') then
has_rows = true
local row = root:tag('tr')
local row = root:tag('tr')
row:addClass(rowArgs.rowclass)
row:addClass(rowArgs.rowclass)
Line 166: Line 147:
if not args.title then return end
if not args.title then return end


has_rows = true
root
root
:tag('caption')
:tag('caption')
Line 179: Line 159:
if not args.above then return end
if not args.above then return end


has_rows = true
root
root
:tag('tr')
:tag('tr')
Line 186: Line 165:
:addClass('infobox-above')
:addClass('infobox-above')
:addClass(args.aboveclass)
:addClass(args.aboveclass)
:css('text-align', 'center')
-- @deprecated next; target .infobox-<name> .infobox-above
-- @deprecated next; target .infobox-<name> .infobox-above
:cssText(args.abovestyle)
:cssText(args.abovestyle)
Line 194: Line 174:
if not args.below then return end
if not args.below then return end


has_rows = true
root
root
:tag('tr')
:tag('tr')
Line 209: Line 188:
if subheaderArgs.data and
if subheaderArgs.data and
subheaderArgs.data:gsub(category_in_empty_row_pattern, ''):match('^%S') then
subheaderArgs.data:gsub(category_in_empty_row_pattern, ''):match('^%S') then
has_rows = true
local row = root:tag('tr')
local row = root:tag('tr')
row:addClass(subheaderArgs.rowclass)
row:addClass(subheaderArgs.rowclass)
Line 250: Line 228:
if imageArgs.data and
if imageArgs.data and
imageArgs.data:gsub(category_in_empty_row_pattern, ''):match('^%S') then
imageArgs.data:gsub(category_in_empty_row_pattern, ''):match('^%S') then
 
has_rows = true
local row = root:tag('tr')
local row = root:tag('tr')
row:addClass(imageArgs.rowclass)
row:addClass(imageArgs.rowclass)
Line 348: Line 325:
if not args.name then return end
if not args.name then return end


has_rows = true
root
root
:tag('tr')
:tag('tr')
Line 383: Line 359:
if args.title then
if args.title then
root:wikitext(
root:wikitext(
'[[Category:Pages using embedded infobox templates with the title parameter]]'
'[[Category:Pages which use embedded infobox templates with the title parameter]]'
)
)
end
end
elseif #(getArgNums('data')) == 0 and mw.title.getCurrentTitle().namespace == 0 then
elseif #(getArgNums('data')) == 0 and mw.title.getCurrentTitle().namespace == 0 then
root:wikitext('[[Category:Articles using infobox templates with no data rows]]')
root:wikitext('[[Category:Articles which use infobox templates with no data rows]]')
end
end
end
end
Line 394: Line 370:
Loads the templatestyles for the infobox.
Loads the templatestyles for the infobox.


TODO: FINISH loading base templatestyles here rather than in
TODO: load base templatestyles here rather than in MediaWiki:Common.css
MediaWiki:Common.css. There are 4-5000 pages with 'raw' infobox tables.
We aren't doing it here yet because there are 4-5000 pages with 'raw' infobox
See [[Mediawiki_talk:Common.css/to_do#Infobox]] and/or come help :).
tables. See [[Mediawiki_talk:Common.css/to_do#Infobox]] and/or come help :).
When we do this we should clean up the inline CSS below too.
When we do this we should clean up the inline CSS below too.
Will have to do some bizarre conversion category like with sidebar.
Will have to do some bizarre conversion category like with sidebar.
 
]=]
]=]
local function loadTemplateStyles()
local function loadTemplateStyles()
local frame = mw.getCurrentFrame()
local frame = mw.getCurrentFrame()
-- See function description
-- See function description
local base_templatestyles = frame:extensionTag{
-- local base_templatestyles = frame:extensionTag{
name = 'templatestyles', args = { src = 'Module:Infobox/styles.css' }
-- name = 'templatestyles', args = { src = cfg.i18n.templatestyles }
}
-- }
 
local templatestyles = ''
local templatestyles = ''
if args['templatestyles'] then templatestyles = frame:extensionTag{
if args['templatestyles'] then templatestyles = frame:extensionTag{
Line 428: Line 404:


return table.concat({
return table.concat({
base_templatestyles, -- see function description
-- base_templatestyles, -- see function description
templatestyles,
templatestyles,
child_templatestyles,
child_templatestyles,
grandchild_templatestyles
grandchild_templatestyles
})
})
end
 
-- common functions between the child and non child cases
local function structure_infobox_common()
renderSubheaders()
renderImages()
preprocessRows()
renderRows()
renderBelowRow()
renderNavBar()
renderItalicTitle()
renderEmptyRowCategories()
renderTrackingCategories()
cleanInfobox()
end
end


Line 458: Line 421:
:addClass(args.subbox == 'yes' and 'infobox-subbox' or 'infobox')
:addClass(args.subbox == 'yes' and 'infobox-subbox' or 'infobox')
:addClass(args.bodyclass)
:addClass(args.bodyclass)
:css('width', args.width or '22.0em')
-- @deprecated next; target .infobox-<name>
-- @deprecated next; target .infobox-<name>
:cssText(args.bodystyle)
:cssText(args.bodystyle)
Line 469: Line 433:
:wikitext(args.title)
:wikitext(args.title)
end
end
structure_infobox_common()
 
renderSubheaders()
return loadTemplateStyles() .. root
renderImages()
preprocessRows()
renderRows()
renderBelowRow()
renderNavBar()
renderItalicTitle()
renderEmptyRowCategories()
renderTrackingCategories()
 
return loadTemplateStyles() .. tostring(root)
end
end



Revision as of 17:29, 23 November 2021

Documentation for this module may be created at Module:Infobox/doc

local p = {}
local args = {}
local origArgs = {}
local root
local empty_row_categories = {}
local category_in_empty_row_pattern = '%[%[%s*[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]%s*:[^]]*]]'

local function fixChildBoxes(sval, tt)
	local function notempty( s ) return s and s:match( '%S' ) end
	
	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
		-- [[Special:Diff/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

-- Returns the union of the values of two tables, as a sequence.
local function union(t1, t2)

	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

-- 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 function getArgNums(prefix)
	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

-- Adds a row to the infobox, with either a header cell
-- or a label/data cell combination.
local function addRow(rowArgs)
	
	if rowArgs.header and rowArgs.header ~= '_BLANK_' then
		root
			:tag('tr')
				:addClass(rowArgs.rowclass)
				:cssText(rowArgs.rowstyle)
				:tag('th')
					:attr('colspan', '2')
					:addClass('infobox-header')
					:addClass(rowArgs.class)
					:addClass(args.headerclass)
					-- @deprecated next; target .infobox-<name> .infobox-header
					: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 and rowArgs.data:gsub(
		category_in_empty_row_pattern, ''
		):match('^%S') then
		local row = root:tag('tr')
		row:addClass(rowArgs.rowclass)
		row:cssText(rowArgs.rowstyle)
		if rowArgs.label then
			row
				:tag('th')
					:attr('scope', 'row')
					:addClass('infobox-label')
					-- @deprecated next; target .infobox-<name> .infobox-label
					:cssText(args.labelstyle)
					:cssText(rowArgs.rowcellstyle)
					:wikitext(rowArgs.label)
					:done()
		end

		local dataCell = row:tag('td')
		dataCell
			:attr('colspan', not rowArgs.label and '2' or nil)
			:addClass(not rowArgs.label and 'infobox-full-data' or 'infobox-data')
			:addClass(rowArgs.class)
			-- @deprecated next; target .infobox-<name> .infobox(-full)-data
			:cssText(rowArgs.datastyle)
			:cssText(rowArgs.rowcellstyle)
			:wikitext(fixChildBoxes(rowArgs.data, 'td'))
	else
		table.insert(empty_row_categories, rowArgs.data or '')
	end
end

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

	root
		:tag('caption')
			:addClass('infobox-title')
			:addClass(args.titleclass)
			-- @deprecated next; target .infobox-<name> .infobox-title
			: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('infobox-above')
				:addClass(args.aboveclass)
				:css('text-align', 'center')
				-- @deprecated next; target .infobox-<name> .infobox-above
				: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('infobox-below')
				:addClass(args.belowclass)
				-- @deprecated next; target .infobox-<name> .infobox-below
				:cssText(args.belowstyle)
				:wikitext(fixChildBoxes(args.below,'td'))
end

local function addSubheaderRow(subheaderArgs)
	if subheaderArgs.data and
		subheaderArgs.data:gsub(category_in_empty_row_pattern, ''):match('^%S') then
		local row = root:tag('tr')
		row:addClass(subheaderArgs.rowclass)

		local dataCell = row:tag('td')
		dataCell
			:attr('colspan', '2')
			:addClass('infobox-subheader')
			:addClass(subheaderArgs.class)
			:cssText(subheaderArgs.datastyle)
			:cssText(subheaderArgs.rowcellstyle)
			:wikitext(fixChildBoxes(subheaderArgs.data, 'td'))
	else
		table.insert(empty_row_categories, subheaderArgs.data or '')
	end
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
		addSubheaderRow({
			data = args['subheader' .. tostring(num)],
			-- @deprecated next; target .infobox-<name> .infobox-subheader
			datastyle = args.subheaderstyle,
			rowcellstyle = args['subheaderstyle' .. tostring(num)],
			class = args.subheaderclass,
			rowclass = args['subheaderrowclass' .. tostring(num)]
		})
	end
end

local function addImageRow(imageArgs)

	if imageArgs.data and
		imageArgs.data:gsub(category_in_empty_row_pattern, ''):match('^%S') then
		
		local row = root:tag('tr')
		row:addClass(imageArgs.rowclass)

		local dataCell = row:tag('td')
		dataCell
			:attr('colspan', '2')
			:addClass('infobox-image')
			:addClass(imageArgs.class)
			:cssText(imageArgs.datastyle)
			:wikitext(fixChildBoxes(imageArgs.data, 'td'))
	else
		table.insert(empty_row_categories, imageArgs.data or '')
	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')
					:addClass('infobox-caption')
					-- @deprecated next; target .infobox-<name> .infobox-caption
					:cssText(args.captionstyle)
					:wikitext(caption)
		end
		addImageRow({
			data = tostring(data),
			-- @deprecated next; target .infobox-<name> .infobox-image
			datastyle = args.imagestyle,
			class = args.imageclass,
			rowclass = args['imagerowclass' .. tostring(num)]
		})
	end
end

-- When autoheaders are turned on, preprocesses the rows
local function preprocessRows()
	if not args.autoheaders then return end
	
	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(
				category_in_empty_row_pattern, ''
			):match('^%S') then
			local data = args['data' .. tostring(num)]
			if data:gsub(category_in_empty_row_pattern, ''):match('%S') then
				lastheader = nil
			end
		end
	end
	if lastheader then
		args['header' .. tostring(lastheader)] = nil
	end
end

-- Gets the union of the header and data argument numbers,
-- and renders them all in order
local function renderRows()

	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)],
			-- @deprecated next; target .infobox-<name> rowclass
			rowstyle = args['rowstyle' .. tostring(num)],
			rowcellstyle = args['rowcellstyle' .. tostring(num)]
		})
	end
end

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

	root
		:tag('tr')
			:tag('td')
				:attr('colspan', '2')
				:addClass('infobox-navbar')
				:wikitext(require('Module:Navbar')._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

-- Categories in otherwise empty rows are collected in empty_row_categories.
-- This function adds them to the module output. It is not affected by
-- args.decat because this module should not prevent module-external categories
-- from rendering.
local function renderEmptyRowCategories()
	for _, s in ipairs(empty_row_categories) do
		root:wikitext(s)
	end
end

-- Render tracking categories. args.decat == turns off tracking categories.
local function renderTrackingCategories()
	if args.decat == 'yes' then return end
	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

--[=[
Loads the templatestyles for the infobox.

TODO: load base templatestyles here rather than in MediaWiki:Common.css
We aren't doing it here yet because there are 4-5000 pages with 'raw' infobox
tables. See [[Mediawiki_talk:Common.css/to_do#Infobox]] and/or come help :).
When we do this we should clean up the inline CSS below too.
Will have to do some bizarre conversion category like with sidebar.
	
]=]
local function loadTemplateStyles()
	local frame = mw.getCurrentFrame()
	
-- See function description
--	local base_templatestyles = frame:extensionTag{
--		name = 'templatestyles', args = { src = cfg.i18n.templatestyles }
--	}
	
	local templatestyles = ''
	if args['templatestyles'] then templatestyles = frame:extensionTag{
			name = 'templatestyles', args = { src = args['templatestyles'] }
		}
	end
	
	local child_templatestyles = ''
	if args['child templatestyles'] then child_templatestyles = frame:extensionTag{
			name = 'templatestyles', args = { src = args['child templatestyles'] }
		}
	end
	
	local grandchild_templatestyles = ''
	if args['grandchild templatestyles'] then grandchild_templatestyles = frame:extensionTag{
			name = 'templatestyles', args = { src = args['grandchild templatestyles'] }
		}
	end

	return table.concat({
--		base_templatestyles, -- see function description
		templatestyles,
		child_templatestyles,
		grandchild_templatestyles
	})	
	
end

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

		root
			:addClass(args.subbox == 'yes' and 'infobox-subbox' or 'infobox')
			:addClass(args.bodyclass)
			:css('width', args.width or '22.0em')
			-- @deprecated next; target .infobox-<name>
			:cssText(args.bodystyle)

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

		root
			:wikitext(args.title)
	end

	renderSubheaders()
	renderImages()
	preprocessRows()
	renderRows()
	renderBelowRow()
	renderNavBar()
	renderItalicTitle()
	renderEmptyRowCategories()
	renderTrackingCategories()

	return loadTemplateStyles() .. tostring(root)
end

-- 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.
local function preprocessSingleArg(argName)
	if origArgs[argName] and origArgs[argName] ~= '' then
		args[argName] = origArgs[argName]
	end
end

-- 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.
local function preprocessArgs(prefixTable, step)
	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
					-- Do another loop if any arguments are found, even blank ones.
					moreArgumentsExist = true
					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

-- 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.
local function parseDataParameters()

	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'}
	}, 50)
	preprocessSingleArg('headerclass')
	preprocessSingleArg('headerstyle')
	preprocessSingleArg('labelstyle')
	preprocessSingleArg('datastyle')
	preprocessSingleArg('below')
	preprocessSingleArg('belowclass')
	preprocessSingleArg('belowstyle')
	preprocessSingleArg('name')
	-- different behaviour for italics if blank or absent
	args['italic title'] = origArgs['italic title']
	preprocessSingleArg('decat')
	preprocessSingleArg('templatestyles')
	preprocessSingleArg('child templatestyles')
	preprocessSingleArg('grandchild templatestyles')
end

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

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