algorithmicx crashes standalone

Question

I am creating SVG files from different stuff from my LaTeX document. For this, I am using the standalone package followed by pdf2svg.

This compiles:

\documentclass{article}
\usepackage{algorithmicx}
\usepackage{algpseudocode}

\begin{document}
    \begin{algorithmic}
        \Function {$foo$}{$id$}
        \EndFunction
    \end{algorithmic}
\end{document}

Using standalone instead of article crashes with:

! LaTeX Error: Something's wrong--perhaps a missing \item.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              

l.8             \Function
                 {$foo$}{$id$}

What can I do? I need to export my algorithms to PDF/SVG.

My versions:

standalone.cls 2012/05/20 v1.1a
algorithmicx.sty 2005/04/27 v1.2

UPDATE: 27.06.2012 The same is happening with align:

\begin{document}
    \begin{align*}
    a\\
    b
    \end{align*}
\end{document}

The v-box hack helps:

\begin{document}
\vbox{
    \begin{align*}
    a\\
    b
    \end{align*}
}
\end{document}

You can put your algorithm into a \vbox also with \setlength{\textwidth}{5cm} as a ugly hack. — percusse, Jun 26 '12 at 18:07
For reference, this does not happen with standalone on ScribTeX: 2010/03/27 v0.3a and the most current version of algorithmicx: 2005/04/27 v1.2. — Werner, Jun 26 '12 at 18:15
On windows 7 and texlive 2011, i get the same error as Dennis with standalone. Yes on ScribTex its working normally. Its surprising why this difference. — texenthusiast, Jun 26 '12 at 18:29
Why does the \vbox-hack works? The setlength-hack does not work for me. — Dennis, Jun 26 '12 at 18:42
Put the setlength command in your preamble after the package declarations to shorten the width. The reason for the functionality is that we hide the linebreaks and other complications into a box such that standalone just sees a box to be shown. And setlength helps to reduce the width of the box. — percusse, Jun 26 '12 at 18:59
Of course setlength is working. By mistake I compiled an other file. Thanks for vbox/standalone clarification. — Dennis, Jun 26 '12 at 19:06
Dennis, @percusse: Basically a duplicate of How to make a standalone document with one equation? — Martin Scharrer, Jun 27 '12 at 23:56

score 6 · Answer 1 · answered Jun 27 '12 at 23:55

6

Use either the preview or the varwidth class option of standalone. As described in the manual the default is crop (not preview) since v1.0 and this does not support paragraphs or lists (and the mentioned environments are apparently based on lists).

answered Jun 27 '12 at 23:55

Martin Scharrer

262,582

Fyi: the manual for v1.1a says in the Introduction: The class uses by default the preview package – Dennis Jun 28 '12 at 15:08
@Dennis: Mmm, maybe there is some old sentence somewhere. The description of the options however clearly states that crop is the default. – Martin Scharrer Jun 28 '12 at 18:59
you're right. Because of that sentence I'm using crop so far. So I can just skip it :) – Dennis Jun 28 '12 at 21:09
Unfortunately, this fix doesn't work for me. Maybe because I'm also using a class class option? But when I use \documentclass[preview, class=myclass]{standalone}, I keep getting the error as above. – Czechnology May 25 '17 at 20:58
@Czechnology: Please provide a minimal working example which causes this error for you. You can post a follow-up question for this. – Martin Scharrer May 27 '17 at 13:01

algorithmicx crashes standalone

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