cam.ctan.org upload: xpackages

[CTAN Announcements]

ctan-upload at cl.cam.ac.uk wrote:

> An upload to cam.ctan.org is in /anfs/ctan-inc/upload-20091125-085946/
> 
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> 
> The following information was provided by the package's contributor.
> 
> Name of contribution: xpackages
> Author's name: LaTeX team
> Author's email: latex-team at latex-project.org
> Location on CTAN: /macros/latex/contrib/xpackages
> Summary description: High-Level LaTeX3 concepts
> License type: lppl
> 
> Announcement text given by the package's contributor:
> ----------------------------------------------------------------------
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> The xpackages bundle: high-level LaTeX3 concepts
> ----------------------------------------------------------------
> 
> The xpackages are experimental, high-level parts of LaTeX3. They
> are designed to provide a link between the programming system 
> (expl3) and the user. Each xpackage is focussed in a different
> area, for example creating document commands (xparse), 
> producing flexible formatting functions (template), etc.
> 
> At present, the xpackages are designed to be loaded on top 
> of LaTeX2e:
> 
>   \usepackage{xparse}
>   \usepackage{xtemplate}
>   
> In time, a LaTeX3 format will be produced based on this code.
> This allows the code to be used in LaTeX2e packages now while a
> stand-alone LaTeX3 is developed.
> 
> To use the xpackages, you will need to have the expl3 package
> available. This provides the LaTeX3 coding environment on which
> the xpackages are built.
> 
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> This release (SVN 1750)
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> 
> This release adds the "new" package xtemplate to the release.
> xtemplate is a complete re-working of the template code, to
> improce the interface and internals. Crucially, templates are
> nmow much better "self-documenting": a designer should be able
> to read a template to see the nature of the keys it defines.
> The team have also constucted a number of automated tests for
> the xtemplate code, so that problems will show up before
> breaking the released version.
> 
> The current template package is slowly being retired from use
> in the other xpackages (currently SVN only). New packages
> should use the xtemplate approach only: at a suitable stage in
> the future, template will be removed from the xpackages.
> 
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> Looking forward
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> 
> There are some outstanding questions about the xtemplate code,
> which have been discussed on the LaTeX-L list. These will be
> addressed, although it may take some time as the answers depend
> on testing xtemplate in the real world.
> 
> The team is currently examining the galley2 and xfmgalley 
> modules, and expect that the next xpackage to be revised to a
> usable position will be a galley system built on these existing
> packages.
>  
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> The LaTeX3 Project
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> 
> ----------------------------------------------------------------------
> 
> Users may view the package catalogue entry at
>   http://www.tex.ac.uk/tex-archive/help/Catalogue/entries/xpackages.html
> or they may browse the package directory at
>   http://www.tex.ac.uk/tex-archive//macros/latex/contrib/xpackages
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