Modul:LinkISBN

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

-- module interface
local LinkISBN = {
	suite  = 'LinkISBN',
	serial = '2019-07-09',
	item   = 65157187
}

-- module variable, i18n
local li = {
	invalid    = '&nbsp;<span class="error">Ungültige ISBN</span>',
	invalidCat = '[[Category:Seiten mit ISBN-Fehlern]]',
	special    = 'Special:ISBN-Suche/', -- Special:BookSources

	-- patterns for delimiters except ','
	delimiters = { ' and ', ' or ', ' und ', ' oder ', ';' },

	-- CSS class
	class      = 'wv-booksources'
}

-- module import
local ci = require( 'Module:Check_isxn' )
local fs = require( 'Module:Failsafe' )
local lb = require( 'Module:LinkBase' )
local yn = require( 'Module:Yesno' )

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

	local comment = '', t
	m, comment = lb.extractComment( m )

	m = m:gsub( 'ISBN *', '' ):upper() -- x -> X
	t = '<span class="' .. li.class .. '" title="' .. li.special .. m
		.. '">[[' .. li.special .. m .. '|' .. 'ISBN ' .. m .. ']]</span>'
	if not noerror then
		t = t .. ci._check_isbn( m, li.invalid .. ( demo and '' or li.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 ''
	args.noerror = yn( args.noerror, false )
	if args.isbn == '' then
		return ''
	end

	local ns     = mw.title.getCurrentTitle().namespace
	local isDemo = ns == 10 or ns == 828
	
	local result = '', i, s

	-- split separate ISBNs
	local items = lb.splitItems( args.isbn, li.delimiters )
		
	-- analyse ISBNs
	for i = 1, #items, 1 do
		s = li._linkISBN( items[ i ], args.noerror, isDemo )
		if s ~= '' then
			result = ( result ~= '' and result .. ', ' or '' ) .. s
		end
	end
	return result
end

function li.LinkISBN()
	return LinkISBN
end

function li.failsafe( version )
	return fs._failsafe( version, LinkISBN ) or ''
end

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

return li