[l2h] Fails to number figures: bogus "arguments too complex" erro r.

[John Blackburn]

The commands

> \newcommand{\rms}{{\protect\footnotesize rms}\protect~}
> \newcommand{\peak}{{\protect\footnotesize peak}\protect~}

do not work either.

Here is the smallest LaTeX file which shows the bug

============================================
\documentclass{article}

\begin{document}
  
  \begin{figure}
    \caption{Here is {\protect\footnotesize small} text}
    \label{foo}
  \end{figure}
  
See Fig \ref{foo}

\end{document}
============================================

Error output:

============================================
No number for "Hereis<FONTSIZE="-1">small</FONT>text"
============================================

Version:

This is LaTeX2HTML Version 2002-2-1 (1.71)

John

> -----Original Message-----
> From: Ross Moore [mailto:ross at ics.mq.edu.au]
> Sent: 20 October 2005 00:52
> To: John Blackburn
> Cc: 'latex2html at tug.org'
> Subject: Re: [l2h] Fails to number figures: bogus "arguments too
> complex" erro r.
> 
> 
> 
> On 19/10/2005, at 9:06 PM, John Blackburn wrote:
> 
> > Thanks for that, Ross,
> >
> > The \rms and \peak commands I defined are certainly causing the  
> > problem. Replacing with something simple like
> >
> > \newcommand{\rms}{\textbf{rms}~}
> > \newcommand{\peak}{\textbf{peak}~}
> >
> > solves the problem (though its not what I wanted!)
> 
> Right; that's because \textbf is robust in LaTeX.
> 
> >
> > However using
> >
> > \DeclareRobustCommand{\rms}{{\footnotesize rms}~}
> > \DeclareRobustCommand{\peak}{{\footnotesize peak}~}
> >
> > as you suggest does not work. The complaints about \leftmargin and  
> > p_at_ go away but it still fails to number figures. It says, eg,
> 
> OK; although I didn't say so in my mail, I suspected that
> this would *not* work, as you report.
> 
> The reason is that LaTeX writes  ... \rms ...  into the .aux file,
> rather than expanding into the complete mess that \footnotesize gives.
> 
> However, LaTeX2HTML sees \rms expanded into  {\footnotesize rms}~
> within the figure caption, so cannot correlate this with the .aux
> contents.
> 
> 
> My other suggestion should work fine:
> 
> > \newcommand{\rms}{{\protect\footnotesize rms}~}
> > \newcommand{\peak}{{\protect\footnotesize peak}~}
> 
> since LaTeX writes:    {\footnotesize rms}~
> 
> and LaTeX2HTML sees:   {\protect\footnotesize rms}~
>   and should discard the \protect when looking for the figure number.
> 
> 
> >
> > No number for  
> > "Experimentalsetupforconstantvoltage.OSCoutputisinrange5mV<FONTSIZ
> > E="-1">rms</FONT>-1.1V<FONTSIZE="-1">rms</ 
> > FONT>.Theamplifiermagnifiesvoltageupto
> > $100times 
> > 
> $.TheinputtoportAisvoltageoverpiezoelectricdividedby10,000toke
> epitlowe 
> > n
> > ough.Thecurrentdetectorscreate1Vper1A."
> >
> > It would appear to have converted \footnotesize into html *before  
> > looking up the caption*. Since the caption is in the aux file  
> > generated by latex, there is no html there and the matching fails.
> 
> Hmm. But did you test the case with \protect ?
> 
> It's true that \DeclareRobustCommand needs a bit more work in the
> LaTeX2HTML programming. It is a much more recent addition to LaTeX
> than is the \protect mechanism.
> 
> 
> 
> >
> > There is a less serious manifestation of this behaviour in  
> > footnotes. I have the tex source
> >
> > 20mV\rms\footnote{In fact the HP...}
> >
> > This comes out as
> >
> > ... SIZE="-1">rms 5
> >     In fact the HP outputs voltage in dBm: ...
> >
> > on the footnote page (footnote number 5)
> >
> > So it seems that Latex2html struggles with sizing commands in  
> > captions.
> 
> If unprotected, yes.
> Perhaps more generally too.
> 
> 
> Thanks for these reports,
> 
>      Ross
> 
> 
> 
> >
> > John.
> >
> 
> --------------------------------------------------------------
> ----------
> Ross Moore                                         
> ross at maths.mq.edu.au
> Mathematics Department                             office: E7A-419
> Macquarie University                               tel: +61 
> +2 9850 8955
> Sydney, Australia  2109                            fax: +61 
> +2 9850 8114
> --------------------------------------------------------------
> ----------
> 
> 

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