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The xargs package Defining commands with many optional arguments made easy Manuel P\'egouri\'e-Gonnard <email@example.com> Presentation ------------ Defining commands with an optional argument is easy in LaTeXe. There is, however, two limitations: there can be at most one optional argument and it must be the first one. The xargs package provide extended variants of \newcommand & friends, for which these limitations no longer hold. You may know some tricks in order to define commands with many optional arguments, or with last argument optional, etc. Theses tricks are subject to a few problems (using arguments in arbitrary order can be difficult, sometimes space is gobbled where it should not), which can be difficult to solve. Anyway, you don't want to worry about such tricky things while writing a document. The xargs package provides you with an easy and (hopefully) robust way to define such commands, using a nice key=value syntax. Contents -------- xargs.sty: the package itself xargs.pdf: the (English) documentation and documented code xargs-fr.pdf: the French documentation xargs.dtx: source for both documentations and package Version info ------------ 2007-10-20 v1.0 first release 2008-03-08 v1.09 Added the usedefault and addprefix keys, not documented yet... License ------- This material is subject to the LaTeX Project Public License. See http://www.ctan.org/tex-archive/help/Catalogue/licenses.lppl.html for the details of that license.