يمكن إنشاء صفحة توثيق الوحدة في مودول:Infobox/شرح

--
-- 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('[[تصنيف: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('[[تصنيف:Pages which use embedded infobox templates with the title parameter]]')
			end
        elseif #(getArgNums('data')) == 0 and mw.title.getCurrentTitle().namespace == 0 then
            root:wikitext('[[تصنيف:أرتيكلات كيخدمو صنادق د معلومات بلا صفوف د الداطا]]')
        end
    end
    if(mw.title.getCurrentTitle().namespace == 0) then
        root:wikitext('[[تصنيف:أرتيكلات كيخدمو موضيلات د معلومات]]')
    end
end

local function loadTemplateStyles()
	local frame = mw.getCurrentFrame()
	
	-- See function description
	local base_templatestyles = ''
	-- local base_templatestyles = frame:extensionTag{ name = 'templatestyles', args = { src = 'Module:Infobox/styles.css' } }

	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

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 loadTemplateStyles() .. 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')
	preprocessSingleArg('templatestyles')
	preprocessSingleArg('child templatestyles')
	preprocessSingleArg('grandchild templatestyles')
	
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