From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Schmitt <alan.schmitt@polytechnique.org>
Subject: debugging why a latex preview fails
Date: Wed, 29 Jan 2020 08:39:58 +0100
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To: emacs-orgmode <emacs-orgmode@gnu.org>

Hello,

I'm trying to add some diagrams in a note, and I want to use latex
preview for that. Unfortunately the result is not what I=C2=A0expect: I do
see an image, but there seem to be errors in the latex processing. How
can I see what latex is produced to find where the issue is?

To be precise, my note has this:

\begin{tikzcd}
A \arrow[r, "u"] \arrow[d, "i"] & B \arrow[d, "f"] \\
C \arrow[r, "v"] & D
\end{tikzcd}

and I have put this in my configuration files:

  (add-to-list 'org-latex-packages-alist '("" "tikz-cd" t nil))

The following latex file compiles correctly:

\documentclass{article}

\usepackage{tikz-cd}

\begin{document}
\begin{tikzcd}
A \arrow[r, "u"] \arrow[d, "i"] & B \arrow[d, "f"] \\
C \arrow[r, "v"] & D
\end{tikzcd}
\end{document}

So I expect I misconfigured something. Is my org-latex-packages-alist
setting wrong?

Thanks,

Alan