\input regression-test.tex
\DocumentMetadata{tagging=on,lang=en-US}
\documentclass{article}
% tagbridge first: the qrcode patch has to wait for the package hook.
\usepackage{tagbridge}
\usepackage{qrcode}
\usepackage{tikz}
\begin{document}
\START

Default: a Figure whose alt text repeats the encoded text.

\qrcode{https://example.org/default}

Explicit alt text.

\qrcode[alt={Link to the course page}]{https://example.org/alt}

Artifact: no structure element at all.

\qrcode[tag=artifact]{https://example.org/artifact}

Same content again: printed from the saved matrix.

\qrcode{https://example.org/default}

Inline \qrcode{https://example.org/inline} with text after it.

\parbox{3cm}{\qrcode[tag=artifact]{https://example.org/boxed}\\ caption}

A tikzpicture with alt text.

\begin{tikzpicture}[alt={A unit square}]
  \draw (0,0) rectangle (1,1);
\end{tikzpicture}

\clearpage
\SHOWPDFTAGS
\end{document}