Problem with pst-barcode when using \usepackage[utf8]{inputenc}

Question

I've tried to use the pst-barcode to generate QR codes, and ran into an issue with foreign characters.

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{pst-barcode}

\begin{document}
\begin{pspicture}(1in,1in)
  \psbarcode{ÆØÅæøå}{width=1.0 height=1.0}{qrcode}
\end{pspicture}
ÆØÅæøå
\end{document}

Incorrect (and complex) QR code

This does not give the expected (or wanted) result. Removing the \usepackage[utf8]{inputenc} solves the pst-barcode problem:

\documentclass{article}
\usepackage{pst-barcode}

\begin{document}
\begin{pspicture}(1in,1in)
  \psbarcode{ÆØÅæøå}{width=1.0 height=1.0}{qrcode}
\end{pspicture}
ÆØÅæøå
\end{document}

Correct QR code, but wrong encoding for text in LaTeX

However, this breaks the input encoding of LaTeX... I presume that pst-barcode does not support UTF8.

What would be the best way to get both UTF-8 encoded LaTeX and correct QR codes for foreign characters?

Answer 1

inputenc redefines the foreign characters to actually be commands that generate the correct glyphs, but this does not work within \psbarcode. You must give the parse option, and then specify the characters by their three-digit ASCII code:

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{pst-barcode}
\begin{document}
\begin{pspicture}(1in,1in)
  \psbarcode{^198^216^197^230^248^229}{width=1.0 height=1.0 parse}{qrcode}
\end{pspicture}
\end{document}