查看“︁模块:Infobox”︁的源代码

--
-- This module implements {{Infobox}}
--
 
local p = {}
 
local HtmlBuilder = require('Module:HtmlBuilder')
 
local args = {}
local origArgs
local root
 
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 then
        root
            .tag('tr')
                .addClass(rowArgs.rowclass)
                .addClass('infobox-header')
                .attr('id', rowArgs.rowid)
                .tag('th')
                    .attr('colspan', 2)
                    .attr('id', rowArgs.headerid)
                    .css('padding','8px')
                    .addClass(rowArgs.class)
                    .addClass(args.headerclass)
                    .cssText(args.headerstyle)
                    .wikitext(rowArgs.header)
    elseif rowArgs.data then
        local row = root.tag('tr')
        row.addClass(rowArgs.rowclass)
        row.attr('id', rowArgs.rowid)
        if rowArgs.label then
            row
                .tag('th')
                    .attr('scope', 'row')
                    .attr('id', rowArgs.labelid)
                    .addClass('infobox-label')
                    .css('width','90px')
                    .cssText(args.labelstyle)
                    .wikitext(rowArgs.label)
                    .done()
        end
        
        local dataCell = row.tag('td')
        if not rowArgs.label then 
            dataCell
                .attr('colspan', 2)
                .css('text-align', 'center') 
        else
        	dataCell
        		.addClass('infobox-data')
        end
        dataCell
            .attr('id', rowArgs.dataid)
            .addClass(rowArgs.class)
            .cssText(rowArgs.datastyle)
            .newline()
            .wikitext(rowArgs.data)
    end
end

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

    root
        .tag('tr')
        	.addClass('infobox-title')
        	.tag('th')
        		.attr('colspan', 2)
        	.addClass(args.titleclass)
            .css('padding','8px')
            .cssText(args.titlestyle)
            .wikitext(args.title)
end

local function renderAboveRow()
    if not args.above then return end
    
    root
        .tag('tr')
        	.addClass('infobox-above')
            .tag('td')
                .attr('colspan', 2)
                .css('padding','0.5em')
                .addClass(args.aboveclass)
                .cssText(args.abovestyle)
                .wikitext(args.above)
end

local function renderBelowRow()
    if not args.below then return end
    
    root
        .tag('tr')
        	.addClass('infobox-below')
            .tag('td')
                .attr('colspan', '2')
                .css('padding','0.5em')
                .addClass(args.belowclass)
                .cssText(args.belowstyle)
                .newline()
                .wikitext(args.below)
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 or args['subheaderstyle' .. tostring(num)],
            class = args.subheaderclass,
            rowclass = args['infobox-item-title 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 = HtmlBuilder.create().wikitext(args['image' .. tostring(num)])
        if caption then
            data
                .tag('div')
                	.addClass('infobox-caption')
                	.css('font-size','75%')
                	.css('font-weight','normal')
                	.css('padding','4px')
                    .cssText(args.captionstyle)
                    .wikitext(caption)
        end
        addRow({
            data = tostring(data),
            datastyle = args.imagestyle,
            class = args.imageclass,
            rowclass = args['infobox-img imagerowclass' .. tostring(num)]
        })
    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)],
            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
    
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()
    -- Uncomment these lines to reenable.
    -- if args.decat ~= 'yes' then
    --     if #(getArgNums('data')) == 0 and mw.title.getCurrentTitle().namespace == 0 then
    --         root.wikitext('[[Category:使用了没有数据的infobox]]')
    --     end
    --     if args.child == 'yes' and args.title then
    --         root.wikitext('[[Category:使用了嵌套的含标题的infobox]]')
    --     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 = HtmlBuilder.create('table')
        
        root
            .addClass('infobox')
            .css('border-collapse','separate')
            .css('border-spacing','2px')
            .addClass(args.bodyclass)
            .attr('cellspacing', 3)
        root
            .cssText(args.bodystyle)
    
        renderTitle()
        renderAboveRow()
    else
        root = HtmlBuilder.create()
        
        root
            .wikitext(args.title)
    end

    root
        .css('float','right')

    renderSubheaders()
    renderImages() 
    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
 
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
    
    -- 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('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 = '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')
 
    return _infobox()
end
 
return p