Module:TemplateBox

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This documentation is transcluded from Module:TemplateBox/doc.

local p = {}

-- =p.test({ args={a="b"} })
function p.test(frame)
    local args = frame.args
    local JSON = require('Module:JSON')
    
    return JSON:encode(args)
end

function tobool(st)
    return st == 'true'
end

-- InterfaceText:
-- A free-form string (no wikitext) in the content-language of the wiki, or, an object containing those strings keyed by language code.
local paraminfoTemplate = {
    description = {
        required = true,
        default = '',
        t = 'InterfaceText',
        alias = 'desc'
    }
}
local paraminfoTLParams = {
	label = {
		required = false,
		default = '',
		t = 'InterfaceText'
	},
	required = {
		required = true,
		default = false,
		extract = function(pargs, number, paramVal)
			local req = (pargs[number .. 'stat'] == 'required')
			return tobool( paramVal or req )
		end
	},
	description = {
		required = false,
		default = '',
		t = 'InterfaceText',
		alias = 'd'
	},
	deprecated = {
		required = true,
		default = false,
		extract = function(pargs, number, paramVal)
			local depr = (pargs[number .. 'stat'] == 'deprecated')
			return tobool( paramVal or depr )
		end
	},
	aliases = {
		required = false,
		default = '',
		extract = function(pargs, number, paramVal)
			local key = number .. 'aliases'
			local tdkey = key .. '-td'
			local aliases = pargs[tdkey] or pargs[key]
			if aliases then
				aliases = mw.text.split( aliases, '/', true )
			end
			return aliases
		end
	},
	default = {
		required = false,
		default = '',
		t = 'InterfaceText',
		alias = 'def'
	},
	type = {
		required = false,
		default = 'unknown',
		t = 'selection',
		selection = 'unknown|number|string|string/wiki-user-name|string/wiki-page-name'
	},
	inherits = {
		required = false,
		default = nil,
		t = 'string'
	}
	-- sets will be treated differently because we can only have a plain structure in wikitext
}

-- Initialize param info
function init()
	for a, v in pairs( paraminfoTLParams ) do
		if v.t ~= nil then
			v.t = type( v.default )
		end
		if v.selection then
			v.selection = '|' .. v.selection .. '|'
		end
	end
end
init()

function p.templatedata(frame)
    -- A real parser would look differently but it would likely be much more complex
	local JSON = require('Module:JSON')
    local pargs = mw.clone( ( frame:getParent() or {} ).args or {} )
    local templateArgs = {}
	local i18nTemplateArgs = {}
    local tdata = {
        description = '',
        params = {
        },
        sets = {
        }
    }
    local extractData = function( pi, number )
		local prefix = number or ''
		local key, key2, tdkey, tdkey2, paramVal
        for p, info in pairs( pi ) do
			key = prefix .. (info.alias or p)
			key2 = prefix .. p
			tdkey = key .. '-td'
			tdkey2 = key2 .. '-td'
            paramVal = pargs[tdkey] or pargs[tdkey2] or pargs[key] or pargs[key2] or info.default
			-- Do we have a multilingual item?
			if i18nTemplateArgs[tdkey2] then
				paramVal = i18nTemplateArgs[tdkey2]
			end
			if i18nTemplateArgs[tdkey] then
				paramVal = i18nTemplateArgs[tdkey]
			end
			if 'function' == type( info.extract ) then
				paramVal = info.extract( pargs, number, paramVal )
			end
			
			local insertValue = function()
				if number then
					tdata.params[p] = paramVal
				else
					tdata[p] = paramVal
				end
			end
			
			if info.selection then
				if info.selection:find( paramVal, 1, true ) then
					insertValue()
				end
			elseif 'InterfaceText' == info.t then
				if ({ table= 1, string=1 })[type( paramVal )] then
					insertValue()
				end
			elseif type( paramVal ) == info.t then
				insertValue()
			end
        end
		-- Now, treat sets
		key = prefix .. 'set'
		tdkey = prefix .. 'set-td'
		paramVal = pargs[tdkey] or pargs[key]
		if paramVal then
			local found = false
			for i, s in ipairs( tdata.sets ) do
				if s.label == paramVal then
					table.insert( s.params, p )
					found = true
				end
			end
			if not found then
				table.insert( tdata.sets, {
					label = paramVal, 
					params = { p }
				} )
			end
		end
    end
	
	if not pargs.templatedata then
		local warning = "Warning: Module:TemplateBox - templatedata invoked but not requested by user."
		mw.log(warning)
		tdata.description = warning
		return JSON:encode(tdata);
	end
	
    -- First, analyse the structure of the provided arguments
    for a, v in pairs( pargs ) do
        if type( a ) == 'number' then
            v = mw.text.trim( v )
            if v ~= '' then
                table.insert( templateArgs, a )
            end
		else
			local argSplit = mw.text.split( a, '-', true )
			local argUnitl = {}
			local argAfter = {}
			local isTDArg = false
			for i, part in ipairs( argSplit ) do
				if isTDArg then
					-- This is likely a language version
					table.insert( argAfter, part )
				else
					table.insert( argUnitl, part )
				end
				if part == 'td' then
					isTDArg = true
				end
			end
			argUnitl = table.concat( argUnitl, '-' )
			argAfter = table.concat( argAfter, '-' )
			i18nTemplateArgs[argUnitl] = i18nTemplateArgs[argUnitl] or {}
			i18nTemplateArgs[argUnitl][argAfter] = v
        end
    end
    -- Then, start building the actual template
    extractData( paraminfoTemplate )
	for i, number in pairs( templateArgs ) do
		extractData( paraminfoTLParams, number )
	end
	
	-- And finally return the result
	return JSON:encode( tdata );
end

return p