Modul:LinkISBN

Die Dokumentation für dieses Modul kann unter Modul:LinkISBN/doc erstellt werden

-- module interface
local LinkISBN = {
	suite  = 'LinkISBN',
	serial = '2021-04-08',
	item   = 65157187
}

-- module import
local ci = require( 'Module:Check_isxn' )
local lb = require( 'Module:LinkISBN/i18n' )
local lu = require( 'Module:Link utilities' )
local yn = require( 'Module:Yesno' )

-- module variable and administration
local li = {
	moduleInterface = LinkISBN
}

-- link a single ISBN
function li._linkISBN( m, ignoreError, demo )
	m = mw.text.trim( m )
	if m == '' then
		return m
	end

	local comment = ''
	m, comment = lu.extractComment( m )

	m = m:gsub( 'ISBN *', '' ):upper() -- x -> X
	local t = '<span class="' .. lb.booksourcesClass .. '">[[Special:Booksources/'
		.. m .. '|' .. 'ISBN ' .. m .. ']]</span>'
	if not ignoreError then
		t = t .. ci._check_isbn( m,
			lb.invalidISBN .. ( demo and '' or lb.invalidCat ) )
	end
	if comment ~= '' then
		t = t .. ' ' .. comment
	end
	return t
end

-- link a list of several ISBNs
function li._linkISBNSet( args )
	args.isbn = args.isbn or args[ 1 ] or ''
	if args.isbn == '' then
		return ''
	end

	args.ignoreError = yn( args.ignoreError or args.noerror, false )

	local ns     = mw.title.getCurrentTitle().namespace
	local isDemo = ns == 10 or ns == 828

	-- split separate ISBNs
	local items = lu.splitItems( args.isbn, lb.delimiters )
		
	-- analyse ISBNs
	local result = ''
	local s
	for i, item in ipairs( items ) do
		s = li._linkISBN( item, args.ignoreError, isDemo )
		if s ~= '' then
			result = ( result ~= '' and result .. ', ' or '' ) .. s
		end
	end
	return result
end

function li.linkISBNs( frame )
	return li._linkISBNSet( frame:getParent().args )
end

return li