%%
%% This is file `ctexhook.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% ctex.dtx  (with options: `ctexhook')
%% 
%%     Copyright (C) 2003--2016
%%     CTEX.ORG and any individual authors listed in the documentation.
%% ------------------------------------------------------------------------------
%% 
%%     This work may be distributed and/or modified under the
%%     conditions of the LaTeX Project Public License, either
%%     version 1.3c of this license or (at your option) any later
%%     version. This version of this license is in
%%        http://www.latex-project.org/lppl/lppl-1-3c.txt
%%     and the latest version of this license is in
%%        http://www.latex-project.org/lppl.txt
%%     and version 1.3 or later is part of all distributions of
%%     LaTeX version 2005/12/01 or later.
%% 
%%     This work has the LPPL maintenance status `maintained'.
%% 
%%     The Current Maintainers of this work are Leo Liu, Qing Lee and Liam Huang.
%% 
%% ------------------------------------------------------------------------------
%% 
\NeedsTeXFormat{LaTeX2e}
\RequirePackage{expl3}
\GetIdInfo$Id: ctex.dtx 1fcc459 2016-04-25 13:35:13 +0800 Liu Haiyang <leoliu.pku@gmail.com> $
  {Document and package hooks (CTEX)}
\ProvidesExplPackage{ctexhook}
  {\ExplFileDate}{2.4}{\ExplFileDescription}
\cs_new_protected:Npn \ctex_at_end_preamble:n #1
  { \tl_gput_right:Nn \g__ctex_end_preamble_hook_tl {#1} }
\cs_new_protected:Npn \ctex_after_end_preamble:n #1
  { \tl_gput_right:Nn \g__ctex_after_end_preamble_hook_tl {#1} }
\cs_new_protected_nopar:Npn \CTEX@document@left@hook
  { \group_end: \g__ctex_end_preamble_hook_tl \group_begin: }
\cs_new_protected_nopar:Npn \CTEX@document@right@hook
  { \scan_stop: \g__ctex_after_end_preamble_hook_tl \tex_ignorespaces:D }
\cs_set_nopar:Npx \document
  {
    \CTEX@document@left@hook
    \exp_not:o { \document }
    \CTEX@document@right@hook
  }
\tl_new:N \g__ctex_end_preamble_hook_tl
\tl_new:N \g__ctex_after_end_preamble_hook_tl
\cs_new_protected:Npn \ctex_at_end_package:nn #1#2
  {
    \@ifpackageloaded {#1}
      {#2}
      { \ctex_gadd_hook:cn { g__ctex_at_end_ #1 _hook_tl } {#2} }
  }
\cs_new_protected:Npn \ctex_gadd_hook:Nn #1#2
  {
    \tl_if_exist:NF #1 { \tl_new:N #1 }
    \tl_gput_right:Nn #1 {#2}
  }
\cs_generate_variant:Nn \ctex_gadd_hook:Nn { c }
\cs_new_protected_nopar:Npn \ctex_package_end_hook:n #1
  {
    \cs_if_exist_use:cT { g__ctex_at_end_ #1 _hook_tl }
      { \cs_undefine:c { g__ctex_at_end_ #1 _hook_tl } }
  }
\cs_generate_variant:Nn \ctex_package_end_hook:n { o }
\tl_put_left:Nn \@popfilename
  {
    \cs_if_eq:NNT \@currext \@pkgextension
      { \ctex_package_end_hook:o { \@currname } }
  }
%% 
%%
%% End of file `ctexhook.sty'.
