CTAN Comprehensive TeX Archive Network

CTAN update: expl3

Date: September 17, 2009 10:21:36 AM CEST
the daemon is surely getting tired, after recent excessive exercise, but neverthe less he says: > The following information was provided by the package's contributor. > > Name of contribution: expl3 > Author's name: LaTeX project > Author's email: joseph.wright at morningstar2.co.uk > Location on CTAN: /macros/latex/contrib/expl3 > Summary description: Packages showing a proposed LaTeX3 programming convention > License type: lppl > > Announcement text given by the package's contributor: > ---------------------------------------------------------------- > The expl3 bundle: low-level LaTeX3 coding > ---------------------------------------------------------------- > > The files of the expl3 bundle provide a low-level API for TeX > programmers with special syntax conventions, completely > separating it from document level syntax. Hence, the commands > provided are not intended for use at the document level nor for > use in describing design layouts in document class files. > > This API provides the foundation on which the LaTeX3 kernel > and other advanced extensions are built. Special care has been > taken so that they can be used within a LaTeX2e context as > regular packages. > > The TeX and eTeX primitives are all given a new name according > to these conventions. However, in the main direct use of the > primitives is not required or encouraged: the expl3 modules > define an independent low-level LaTeX3 programming language. > > At present, the expl3 modules are designed to be loaded on top > of LaTeX2e: > > \usepackage{expl3} > > 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. > > ---------------------------------------------------------------- > This release (SVN 1543) > ---------------------------------------------------------------- > > The major change from the last snapshot (SVN 1509) is changes > to l3keys which reflect discussion about both expl3 and wider > LaTeX3 concepts. > > Changes to l3keys: > - Removed .code:Nn, .code:Nx, .function:N, .initial:n, > .initial:V, .set:N properties > - New variable-setting properties .dim_(g)set:N, .int_(g)set:N, > .skip_(g)set:N, .tl_(g)set:N, .tl_(g)set_x:N > - Choice generating system now uses two properties > .choice_code:n and .generate_choices:n > > The team hope that these changes now make l3keys fully usable > across LaTeX3 and other projects. > > The \keys_variable_get_scope:N and \keys_variable_get_type:N > functions have been moved to \prg_, to reflect their generic > nature. > > A few new functions have been added, mainly to support changes > in the xpackages. > > ---------------------------------------------------------------- > The LaTeX3 Project > ---------------------------------------------------------------- i've installed the new version and updated the catalogue repository. the catalogue update will be left to the overnight run to regenerate. > Users may view the package catalogue entry at > http://www.tex.ac.uk/tex-archive/help/Catalogue/entries/expl3.html > or they may browse the package directory at > http://www.tex.ac.uk/tex-archive/macros/latex/contrib/expl3 Robin Fairbairns For the CTAN team

expl3 – Wrapper package for experimental 3

The package serves as a wrapper for other packages that make up the 3 kernel distribution.

The package is distributed as part of the 3 kernel distribution.

Version 2022-11-02
Copyright1990–2022 The 3 Project
MaintainerThe Project Team



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