Re: Re: IMPORTANT: (possibly) incompatible Change

[Carsten Dominik <carsten.dominik@gmail.com>]

On Apr 2, 2010, at 3:17 AM, Mark Elston wrote:

> Carsten,
>
> Thanks for this clarification.  This makes the transition much
> simpler than I originally thought.  I can certainly remove the
> common package names.
>
> The existing org-export-latex-classes also contains the
> documentclass line.  That won't change, will it?  I am
> assuming from what you have written that the generated LaTeX code
> will be something like:
>
> <contents of org-export-latex-classes for the selected class>
> <contents of org-export-latex-default-packages-alist>
> <contents of org-export-latex-packages-alist for the selected class>

Yes.  But the latter two variables are independent of class.
And after these three components, #+LaTeX_HEADER stuff will be
added as well.

- Carsten

>
> Is this correct?
>
> Mark
>
> On 3/31/2010 11:59 PM, Carsten Dominik wrote:
>> Hi Mark,
>>
>> OK, it seems that I have really overstated this change. You are of
>> course right that your header for a document type can be very long,
>> that that defining it in org-export-latex-classes is a viable option
>> (other being to put this stuff into a separate file).
>>
>> So let me restate what I am trying to say in this thread.
>>
>> ------------------------------------------------------------------------------
>>
>> Org-mode contains now a new variable
>> `org-export-latex-default-packages-alist'
>> which contains all the LaTeX packages it needs to use for basic Org- 
>> mode
>> functionality. The corresponding \usepackage statements used to be  
>> part
>> of the header definitions in org-export-latex-classes, and they had  
>> to
>> be repeated for each document class. This is wasteful, error prone,  
>> and
>> hard to maintain.
>> Therefore, these packages are now collected in the new variable,
>> and they will be spliced into the header.
>>
>> If you have customized the variable org-export-latex-classes, you  
>> need to
>> remove the following lines from each class definition:
>>
>> \usepackage[AUTO]{inputenc}
>> \usepackage[T1]{fontenc}
>> \usepackage{graphicx}
>> \usepackage{longtable}
>> \usepackage{float}
>> \usepackage{wrapfig}
>> \usepackage{soul}
>> \usepackage{latexsym}
>> \usepackage{amssymb}
>> \usepackage{hyperref}
>>
>> If you have other packages you always want to use in all
>> classes, you can add them to another variable,
>> `org-export-latex-packages-alist'.
>> ------------------------------------------------------------------------------
>>
>>
>>
>> I think this makes more sense, thank you for making me clarify this.
>>
>> - Carsten
>>
>>
>>
>
>
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- Carsten