%%
%% This is file `l3xref.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% l3xref.dtx  (with options: `package')
%% 
%% 
%% EXPERIMENTAL CODE
%% 
%% Do not distribute this file without also distributing the
%% source files specified above.
%% 
%% Do not distribute a modified version of this file.
%% 
%% 
%% File: l3xref.dtx Copyright (C) 2006,2009 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/svnroot/experimental/trunk/
%%
%% for those people who are interested.
%%
%%%%%%%%%%%
%% NOTE: %%
%%%%%%%%%%%
%%
%%   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
%%   prior consultation with the LaTeX Project Team.
%%
%% -----------------------------------------------------------------------
\RequirePackage{l3names}
\GetIdInfo$Id: l3xref.dtx 2223 2011-04-09 12:57:14Z will $
       {L3 Experimental cross referencing}
\ProvidesExplPackage
  {\filename}{\filedate}{\fileversion}{\filedescription}
\package_check_loaded_expl:
\prop_new:N \g_xref_all_curr_immediate_fields_prop
\prop_new:N \g_xref_all_curr_deferred_fields_prop
\cs_new_nopar:Npn \xref_new:nn {\xref_new_aux:nnn{immediate}}
\cs_new_nopar:Npn \xref_deferred_new:nn {\xref_new_aux:nnn{deferred}}
\cs_new_nopar:Npn \xref_new_aux:nnn #1#2#3{
  \prop_gput:ccx {g_xref_all_curr_ #1 _fields_prop}
  { xref_ #2 _key }
  { \exp_not:c {l_xref_curr_#2_tl }}
  \cs_set_protected_nopar:cpn { xref_#2_key }{}
  \tl_new:cn{l_xref_curr_#2_tl}{#3}
  \toks_set:Nx \l_tmpa_toks {
    \exp_not:n { \cs_set_nopar:cpn {xref_get_value_#2_aux:w} ##1 }
    \exp_not:N \q_prop
    \exp_not:c { xref_#2_key }
    \exp_not:N \q_prop
  }
  \toks_use:N \l_tmpa_toks ##2 ##3\q_nil {##2}
}
\cs_new_nopar:Npn \xref_get_value:nn #1#2 {
  \cs_if_exist:cTF{g_xref_#2_prop}
  {
    \exp_args:NcNc \exp_after:wN {xref_get_value_#1_aux:w}
    \toks_use:N {g_xref_#2_prop}
    \q_nil
  }
  {??}
}
\cs_set_nopar:Npn \exp_after:cc #1#2 {
  \exp_after:wN \exp_after:wN
  \cs:w #1\exp_after:wN\cs_end: \cs:w #2\cs_end:
}
\cs_set_protected:Npn \q_prop {\q_prop}
\cs_new_protected_nopar:Npn \xref_define_label:nn {
  \group_begin:
    \char_set_catcode:nn {`\ }\c_ten
    \xref_define_label_aux:nn
}
\cs_new_nopar:Npn \xref_define_label_aux:nn #1#2 {
    \cs_if_free:cTF{g_xref_#1_prop}
    {\prop_new:c{g_xref_#1_prop}}{\WARNING}
    \toks_gset:cn{g_xref_#1_prop}{#2}
  \group_end:
}
\cs_set_nopar:Npn \xref_set_label:n #1{
  \cs_set_nopar:Npx \xref_tmp:w{\toks_use:N\g_xref_all_curr_immediate_fields_prop}
  \exp_args:NNx\iow_shipout_x:Nn \xref_write{
    \xref_define_label:nn {#1} {
      \xref_tmp:w
      \toks_use:N \g_xref_all_curr_deferred_fields_prop
    }
  }
}
%% 
%%
%% End of file `l3xref.sty'.
