Re: [Bug-AUCTeX] Re: previews hiding significant information

[David Kastrup]

Andreas Matthias <address@hidden> writes:

> David Kastrup wrote:
>
>> Andreas Matthias <address@hidden> writes:
>  
>>> \documentclass[a4paper]{article}
>>> \usepackage{graphicx,afterpage}
>>> \begin{document}
>>> \afterpage{\includegraphics{hog}}
>>> foo
>>> \cleardoublepage
>>> bar
>>> \end{document}
>> 
>> Previews hide the corresponding source code.  And \cleardoublepage
>> _is_ the corresponding source code.
>
> Why is \cleardoublepage the corresponding source code? I don't
> understand that.

Because it executes the macro.

>> You can use
>> \PreviewCommand*\afterpage
>> 
>> in order to deactivate \afterpage for the purpose of previewing.
>
> I guess this should be \PreviewMacro?

Yes.

> Btw, in the dtx there's still a reference to \cmd{\PreviewCommand}.

I'll try to remember until I am back at home.

> But why does adding \PreviewMacro*\afterpage just work if
> \usepackage[active,graphics]{preview} is added as well? Letting
> emacs insert the \usepackage command does not work.

Emacs uses \AtBeginDocument, the style is loaded too late.

Try

\AtBeginDocument{\ifx\ifPreview\undefined \else
  \PreviewMacro*\afterpage \fi}

in the preamble, or read the docs about how to do it in a separate file.

-- 
David Kastrup