<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">% !TeX program = LuaTeX
\nopagenumbers
% load package and store it in a global Lua variable
\directlua{barracuda = require "barracuda"}
\newbox\mybox

ISBN test:
\vskip10pt

\leavevmode
\directlua{barracuda:hbox("ean-isbn", "978-88-8154-348-9", "mybox")}
\box\mybox
\directlua{barracuda:hbox("ean-isbn", "978 88 8154 348 9", "mybox")}
\box\mybox

\vskip10pt
\directlua{barracuda:hbox("ean-isbn+5", "978 88 8154 348 9-80026", "mybox")}%
\box\mybox

\vskip10pt
ISBN 10 test, the 10-digits code is automatically converted in an ISBN 13 code:
\vskip10pt
\directlua{barracuda:hbox("ean-isbn", "1-78474-140-X", "mybox")}%
\box\mybox

\vskip10pt
\directlua{barracuda:hbox("ean-isbn+5", "1-78474-140-X 12345", "mybox")}%
\box\mybox

\vskip10pt
\directlua{barracuda:hbox("ean-isbn+2", "1-78474-140-X 99", "mybox")}%
\box\mybox

\vskip5pt
ISBN Test: the value 'auto' for 'text\_isbn\_enabled' option means that
the text above the symbol isn't printed if in the provided code does not
have group chars or the length is not 10:
\vskip5pt
\leavevmode
\directlua{barracuda:hbox("ean-isbn", "9788881543489", "mybox")}
\box\mybox
\directlua{barracuda:hbox("ean-isbn", "978-8881543489", "mybox")}
\box\mybox

\bye</pre></body></html>