% \iffalse
%% File: test2 Copyright (C) 1990-2006 LaTeX3 project
%%
%% It may be distributed and/or modified under the conditions of the
%% LaTeX Project Public License (LPPL), either version 1.3c of this
%% license or (at your option) any later version.  The latest version
%% of this license is in the file
%%
%%    http://www.latex-project.org/lppl.txt
%%
%% This file is part of the ``expl3 bundle'' (The Work in LPPL)
%% and all files in that bundle must be distributed together.
%%
%% The released version of this bundle is available from CTAN.
%%
%% -----------------------------------------------------------------------
%%
%% The development version of the bundle can be found at
%%
%%    http://www.latex-project.org/cgi-bin/cvsweb.cgi/
%%
%% for those people who are interested.
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%%%%%%%%%%%
%% NOTE: %% 
%%%%%%%%%%%
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%%   Snapshots taken from the repository represent work in progress and may
%%   not work or may contain conflicting material!  We therefore ask
%%   people _not_ to put them into distributions, archives, etc. without
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%%
\def\next$Id: #1.tex #2 #3-#4-#5 #6 #7$#8{%
  \def\fileversion{#2}%
  \def\filedate{#3/#4/#5}%
  \ProvidesFile{#1.tex}[#3/#4/#5 v#2 #8]%
}
\next$Id: test2.tex 573 2006-08-21 20:59:37Z morten $
          {L3 Test 2}
% \fi


\RequirePackage[removeoldnames]{l3names}
\RequirePackage{l3expan}

\CodeStart


\def_new:Npn\foo:nn#1#2{\def:Npn\xxx{(#1)(#2)}\tex_show:D\xxx}

\def:Npn\a{A}\def:Npn\b{B}
\def:Npn\aa{\a}\def:Npn\bb{\b}

\def:Npn\foo:oo{\exp_args:Noo\foo:nn}
\def:Npn\foo:xx{\exp_args:Nxx\foo:nn}
\def:Npn\foo:cc{\exp_args:Ncc\foo:nn}
\def:Npn\foo:nx{\exp_args:Nnx\foo:nn}

\foo:nn{a}{b}

\foo:nn{\a}{\b}

\foo:oo\aa\bb

\foo:xx\aa\bb

\foo:cc{a}{b}

\foo:nx{a}{\b}

\tex_end:D