%%
%%  Copyright (C) 2019--2025 WHUTUG <https://github.com/whutug>
%% 
%%  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. 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 2008 or later.
%% 
%%  This work has the LPPL maintenance status `maintained'.
%% 
%%  The Current Maintainers of this work are
%%    Siyu Wu <2401336502@qq.com>
%%    Kangwei Xia <kangweixia_xdyy@163.com>
%%    Anbo Tao <398943960@qq.com>

%tag 标识节
\NeedsTeXFormat{LaTeX2e}
\ProvidesExplClass {whu-thesis} {2025-03-17} {v2.4.0}
  {Thesis template for Wuhan University}


%tag 简化-msg-模块的函数
\cs_new:Npn \__whu_msg_new:nn  { \msg_new:nnn      { whu-thesis } }
\cs_new:Npn \__whu_warning:n   { \msg_warning:nn   { whu-thesis } }
\cs_new:Npn \__whu_warning:nn  { \msg_warning:nnn  { whu-thesis } }
\cs_new:Npn \__whu_error:n     { \msg_error:nn     { whu-thesis } }
\cs_new:Npn \__whu_error:nn    { \msg_error:nnn    { whu-thesis } }
\cs_new:Npn \__whu_fatal:nx    { \msg_fatal:nnx    { whu-thesis } }

\RequirePackage { xtemplate, l3keys2e }

\__whu_msg_new:nn { l3-too-old }
  {
    Package~ "#1"~ is~ too~ old. \\\\
    Please~ update~ an~ up-to-date~ version~ of~ the~ bundles \\
    "l3kernel"~ and~ "l3packages"~ using~ your~ TeX~ package \\
    manager~ or~ from~ CTAN.
  }
\clist_map_inline:nn { expl3, xtemplate, l3keys2e }
  {
    \@ifpackagelater {#1} { 2020/02/02 }
      { } { \__whu_error:nn { l3-too-old } {#1} }
  }
\sys_if_engine_xetex:F
  {
    \sys_if_engine_luatex:F
      {
        \__whu_fatal:nx { unsupported-engine }
          { \c_sys_engine_str }
      }
  }
\__whu_msg_new:nn { unsupported-engine }
  {
    The~ whu-thesis~ class~ requires~ either~ XeTeX~ or~ LuaTeX. \\\\
    "#1"~ is~ not~ supported~ at~ present.~ You~ must~ change \\
    your~ typesetting~ engine~ to~ "xelatex"~ or~ "lualatex".
  }

%tag 用户设置命令接口
\NewDocumentCommand \whusetup { m }
  { \keys_set:nn { whu } {#1} }
\NewDocumentCommand \whumodule { m }
  { 
    \ExplSyntaxOn
    \clist_map_inline:nn { #1 }
      {
        \file_input:n { module / module.##1 }
      }
    \ExplSyntaxOff
  }

%tag meta-key
\keys_define:nn { whu }
  {
    style .meta:nn = { whu / style } {#1},
    info  .meta:nn = { whu / info  } {#1}
  }

%tag 定义全局变量
\clist_new:N \g__whu_to_ctexbook_clist   % 储存通过文档类选项传递给 ctexbook 的选项
\int_new:N \g__whu_thesis_type_int   % 论文类型：本、硕、博
\tl_new:N \g__whu_thesis_type_tl
\tl_new:N \g__whu_thesis_class_tl % 学术学位、专业学位
\bool_new:N \g__whu_draft_bool
\bool_new:N \g__whu_twoside_bool

%tag 临时变量
\box_new:N \l__whu_tmpa_box
\box_new:N \l__whu_tmpb_box
\clist_new:N \l__whu_tmpa_clist
\clist_new:N \l__whu_tmpb_clist
\tl_new:N \l__whu_tmpa_tl
\tl_new:N \l__whu_tmpb_tl
\dim_new:N \l__whu_tmpa_dim
\dim_new:N \l__whu_tmpb_dim
\dim_new:N \l__whu_tmpc_dim

\hook_gset_rule:nnnn { begindocument/before } { . } { < } { xeCJK }

%tag 函数变体
\prg_generate_conditional_variant:Nnn \int_case:nn { Vn , xn } { T, F, TF }
\cs_generate_variant:Nn \int_case:nn { Vn, xn }
\cs_generate_variant:Nn \tl_map_inline:nn { xn }
\cs_generate_variant:Nn \dim_set:Nn { Nx }
\cs_generate_variant:Nn \str_case:nn { xn }


%region 基本函数

%tag 空白页
\cs_new:Npn \__whu_new_blank_page:
  {
    \newpage \null \thispagestyle{empty} \newpage
  }

%tag 分散盒子
\cs_new_protected:Npn \__whu_spread_box:nn #1#2
  % #1: 宽度
  % #2: 内容
  {
    \mode_leave_vertical:
    \hbox_to_wd:nn {#1}
      { \tl_map_inline:xn {#2} { ##1 \hfil } \unskip }
  }
\cs_new_protected:Npn \__whu_spread_box_with_end_spaces:nn #1#2
  {
    \mode_leave_vertical:
    \hbox_to_wd:nn {#1}
      { \hspace{0.19cm} \tl_map_inline:xn {#2} { ##1 \hfil } \unskip \hspace{0.19cm}}
  }

%tag 分隔盒子
\cs_new_protected:Npn \__whu_spread_box_with_separator:nn #1#2
  % #1: 分隔内容
  % #2: 内容
  {
    \mode_leave_vertical:
    \hbox_set:Nn \l__whu_tmpa_box
      { \tl_map_inline:xn {#2} { ##1 #1 } \unskip }
    \box_use_drop:N \l__whu_tmpa_box
  }
\cs_generate_variant:Nn \__whu_spread_box_with_separator:nn { nv }
\cs_new_protected:Npn \__whu_spread_box_with_quad:n #1
  {
    \__whu_spread_box_with_separator:nn { \quad } {#1}
  }

%tag 带圈数字
\NewDocumentCommand \circlednumber { s m }
  {
    \IfBooleanTF {#1}
      { \__whu_tikz_circled_number:n {#2} }
      { \__whu_circled_number:n {#2} }
  }
\cs_new:Npn \__whu_circled_number:n #1
  {
    \int_set:Nn \l_tmpa_int {#1}
    \int_compare:nNnTF { \l_tmpa_int } = { 0 }
      { \int_set:Nn \l_tmpa_int { "24EA } }
      {
        \int_compare:nNnTF { \l_tmpa_int } < { 21 }
          { \int_add:Nn \l_tmpa_int { "245F } }
          {
            \int_compare:nNnTF { \l_tmpa_int } < { 36 }
              { \int_add:Nn \l_tmpa_int { "3250 } }
              {
                \int_compare:nNnTF { \l_tmpa_int } < { 51 }
                  { \int_add:Nn \l_tmpa_int { "32B0 } }
                  {
                    \msg_error:nnn { whu }
                      { invalid-circled-number } { \int_use:N \l_tmpa_int }
                  }
              }
          }
      }
    \group_begin:
      \CJKfamily+ { }
      \symbol { \l_tmpa_int }
    \group_end:
  }

\msg_new:nnn { whu } { invalid-circled-number }
  { Invalid~ circled~ number~ #1. }

%tag tikz-绘制带圈数字
\fp_new:N \l__whu_tikz_circled_number_xscale_fp   % 水平压缩系数
\fp_new:N \l__whu_tikz_circled_number_yscale_fp   % 垂直压缩系数
\dim_new:N \l__whu_tikz_circled_number_total_hegiht_dim   % 数字的总高度
\dim_new:N \l__whu_tikz_circled_number_radius_dim     % 半径

\cs_new:Npn \__whu_tikz_circled_number:n #1
  {
    % 根据数字大小设置压缩系数
    \fp_set:Nn \l__whu_tikz_circled_number_xscale_fp
      {
        \int_compare:nNnTF {#1} < { 10 } 
          { 0.9 }
          {
            \int_compare:nNnTF {#1} < { 100 }
              { 0.7 }
              { 0.5 }
          } 
      }
    \fp_set:Nn \l__whu_tikz_circled_number_yscale_fp
      {
        \int_compare:nNnTF {#1} < { 10 } 
          { 0.9 }
          {
            \int_compare:nNnTF {#1} < { 100 }
              { 0.8 }
              { 0.6 }
          } 
      }
    % 获取数字的高度
    \hbox_set:Nn \l_tmpa_box {#1}
    \dim_set:Nn \l__whu_tikz_circled_number_total_hegiht_dim
      { \box_ht:N \l_tmpa_box + \box_dp:N \l_tmpa_box  }
    % 设置圆的半径
    \dim_set:Nn \l__whu_tikz_circled_number_radius_dim 
      { \dim_eval:n { \l__whu_tikz_circled_number_total_hegiht_dim / 2 + 0.34 ex } }
    % 绘制
    \tikz [ baseline ]
      {
        \node
          [ inner~sep = 0pt, outer~sep = 0pt ]
          at (0, \dim_use:N \l__whu_tikz_circled_number_total_hegiht_dim / 2 ) 
          {
            \hbox_set:Nn \l_tmpa_box
              {
                \int_compare:nNnTF {#1} > {9}
                  { \textbf {#1} }
                  {#1}
              }
            \makebox[0.35em][c]
              { 
                \box_scale:Nnn \l_tmpa_box
                  { \fp_use:N \l__whu_tikz_circled_number_xscale_fp }
                  { \fp_use:N \l__whu_tikz_circled_number_yscale_fp } 
                \box_use_drop:N \l_tmpa_box
              }
          };
        \draw (0, \l__whu_tikz_circled_number_total_hegiht_dim / 2 )
          circle ( \l__whu_tikz_circled_number_radius_dim );
      }
  }
%tag 下划线
\cs_new:Npn \__whu_rulefill:
  {
    \leaders\hrule\@width0pt\@height-2pt\@depth2.5pt\hfill\kern\z@
  }

%tag 获取宽度与-clist-的内容的最大宽度
\cs_new:Npn \__whu_get_text_width:Nn #1#2
  {
    \hbox_set:Nn \l__whu_tmpa_box {#2}
    \dim_set:Nn #1 { \box_wd:N \l__whu_tmpa_box }
  }
\cs_generate_variant:Nn \__whu_get_text_width:Nn { NV }
\cs_new:Npn \__whu_get_max_text_width:NN #1#2
  {
    \group_begin:
      \clist_set_eq:NN \l__whu_tmpa_clist #2
      \bool_until_do:nn { \clist_if_empty_p:N \l__whu_tmpa_clist }
        {
          \clist_pop:NN \l__whu_tmpa_clist \l__whu_tmpa_tl
          \__whu_get_text_width:NV \l__whu_tmpa_dim \l__whu_tmpa_tl
          \dim_gset:Nn #1 { \dim_max:nn {#1} { \l__whu_tmpa_dim } }
        }
    \group_end:
  }
%tag 删除章标题中的-\quad
\cs_new_protected:Npn \__whu_sanitize_chapter_title:n #1
  {
    \tl_clear:N \l__whu_tmpa_tl
    \tl_set:No \l__whu_tmpa_tl {#1}
    \tl_remove_all:Nn \l__whu_tmpa_tl { \quad }
  }
%tag 手动生成章的标题，用于摘要、参考文献等
\cs_new_protected:Npn \__whu_chapter:n #1
  {
    \__whu_sanitize_chapter_title:n {#1}
    \group_begin:
      \ctexset { chapter / numbering = false }
      \chapter [ \l__whu_tmpa_tl ] {#1}
    \group_end:
    \__whu_chapter_header:n {#1}
  }
\cs_generate_variant:Nn \__whu_chapter:n { V }
\cs_new_protected:Npn \__whu_chapter_header:n #1
  {
    \bool_if:NTF \g__whu_twoside_bool
      { \markboth {#1} {#1} }
      { \markboth { \hfill #1 \hfill } { } }
  }
%endregion 基本函数

%region 处理文档类的选项
%tag 选项定义
\keys_define:nn { whu / option }
  {
    type .choice:,
    type .value_required:n = true,
    type .choices:nn =
      { bachelor, master, doctor }
      {
        \int_gset_eq:NN \g__whu_thesis_type_int \l_keys_choice_int
        \tl_gset_eq:NN \g__whu_thesis_type_tl \l_keys_choice_tl
      },
    type .initial:n = bachelor,
    class .choice:,
    class .value_required:n = true,
    class .choices:nn =
      { academic, professional }
      { \tl_gset_eq:NN \g__whu_thesis_class_tl \l_keys_choice_tl },
    class .initial:n = academic,
    oneside .value_forbidden:n = true,
    twoside .value_forbidden:n = true,
    oneside .code:n =
      {
        \clist_gput_right:Nn \g__whu_to_ctexbook_clist { oneside }
        \bool_set_false:N    \g__whu_twoside_bool
      },
    twoside .code:n =
      {
        \clist_gput_right:Nn \g__whu_to_ctexbook_clist { twoside }
        \bool_set_true:N     \g__whu_twoside_bool
      },
    openany .value_forbidden:n = true,
    openany .code:n =
      {
        \clist_gput_right:Nn \g__whu_to_ctexbook_clist { openany }
      },
    showframe .value_forbidden:n = true,
    showframe .code:n =
      {
        \PassOptionsToPackage { showframe } { geometry }
      },
    draft .choice:,
    draft / true  .code:n =
      {
        \bool_set_true:N     \g__whu_draft_bool
        \clist_gput_right:Nn \g__whu_to_ctexbook_clist { draft }
      },
    draft / false .code:n =
      { \bool_set_false:N    \g__whu_draft_bool },
    draft .default:n = true,
    draft .initial:n = false,
    unknown .code:n = { \__whu_error:n { unknown-option } }
  }
\__whu_msg_new:nn { unknown-option }
  { Class~ option~ "\l_keys_key_str"~ is~ unknown. }
\ProcessKeysOptions { whu / option }

%tag 行距

% 本科的 linespread
\fp_const:Nn \c__whu_bachelor_line_spread_fp
  { \dim_ratio:nn { 23 pt } { 12 bp } / 1.2 }
% 硕士的 linespread
\fp_const:Nn \c__whu_master_line_spread_fp
  { \dim_ratio:nn { 20 bp } { 12 bp } / 1.2 }
% 博士的 linespread
\fp_const:Nn \c__whu_doctor_line_spread_fp
  { \dim_ratio:nn { 20 bp } { 12 bp } / 1.2 }

%tag 字号和行距处理
\str_case:xn { \tl_to_str:N \g__whu_thesis_type_tl }
  {
    % 本科小四，23磅
    { bachelor } { \PassOptionsToClass { zihao = -4 , linespread = \c__whu_bachelor_line_spread_fp } { ctexbook } }
    % 硕士小四，20磅
    {  master  } { \PassOptionsToClass { zihao = -4 , linespread = \c__whu_master_line_spread_fp } { ctexbook } }
    % 博士小四，20磅
    {  doctor  } { \PassOptionsToClass { zihao = -4 , linespread = \c__whu_doctor_line_spread_fp } { ctexbook } }
  }

\PassOptionsToClass
  {
    UTF8,
    heading  = true,
    \g__whu_to_ctexbook_clist,
    fontset = none
  }
  { ctexbook }
%endregion 处理文档类的选项

%tag 给预加载的宏包传递选项
\clist_map_inline:nn
  {
    { no-math  } { fontspec },
    { numbered } { bookmark },
    { titles   } { tocloft  },
    { perpage  } { footmisc }
  }
  { \PassOptionsToPackage #1 }


%tag 加载-ctexbook
\LoadClass { ctexbook }

%tag 加载宏包 (in alphabetic order)
\RequirePackage { amsmath }
\RequirePackage { amssymb }
\RequirePackage { amsthm }
\RequirePackage { bookmark }
\RequirePackage { booktabs }
\RequirePackage { caption }
\RequirePackage { enumitem }
\RequirePackage { etoolbox }
\RequirePackage { fancyhdr }
\RequirePackage { fixdif }
\RequirePackage { fontspec }
\RequirePackage { footmisc }
\RequirePackage { geometry }
\RequirePackage { graphicx }
\RequirePackage { thmtools }
\RequirePackage { tikzpagenodes }
\RequirePackage { tocloft }

\AtEndPreamble
  {
    \RequirePackage { hyperref }
  }

%tag 图片路径
\graphicspath{{figures/}{logo/}}

%region 页面尺寸设置 (paper size setting)
% 统一都是 A4 纸大小
\geometry{paper = a4paper}

%tag 本科
\cs_new_protected:Npn \__whu_bachelor_set_paper_size:
  {
    \geometry
      {
        left       = 31.8mm,
        right      = 31.8mm,
        top        = 25.4mm,
        bottom     = 25.4mm,
        headheight = 3mm,
        headsep    = 2mm,
        footskip   = 6mm
      }
  }
%tag 硕士
\cs_new_protected:Npn \__whu_master_set_paper_size:
  {
    \geometry
      {
        left       = 28mm,
        right      = 25mm,
        top        = 30mm,
        bottom     = 29mm,
        headheight = 15pt
      }
  }
%tag 博士
\cs_new_protected:Npn \__whu_doctor_set_paper_size:
  {
    \geometry
      {
        left       = 28mm,
        right      = 25mm,
        top        = 30mm,
        bottom     = 29mm,
        headheight = 15pt
      }
  }
%tag 设置
\use:c { __whu_ \g__whu_thesis_type_tl _set_paper_size: }
%endregion 页面尺寸设置

%region 图书馆版本 去除所有空白页
\keys_define:nn { whu / style }
  {
    library .bool_gset:N = \g__whu_library_version_bool,
    library .initial:n   = false,
    library .default:n   = true,
  }
\ctex_after_end_preamble:n
  {
    \bool_if:NT \g__whu_library_version_bool
    {
      \cs_set_eq:NN \__whu_new_blank_page: \newpage
      \renewcommand{\cleardoublepage}{\clearpage}
    }
  }
%endregion 图书馆版本

%region 字体配置 (font configuration)
%tag 预备函数
\cs_new_protected:Npn \__whu_set_cjk_main_font:nn #1#2
  {
    \setCJKmainfont{#1}[#2]
    \newCJKfontfamily [zhsong] \songti {#1} [#2]
  }
\cs_new_protected:Npn \__whu_set_cjk_sans_font:nn #1#2
  {
    \setCJKsansfont{#1}[#2]
    \newCJKfontfamily [zhhei] \heiti {#1} [#2]
  }
\cs_new_protected:Npn \__whu_set_cjk_mono_font:nn #1#2
  {
    \setCJKmonofont{#1}[#2]
    \newCJKfontfamily [zhfs] \fangsong {#1} [#2]
  }
\cs_new_protected:Npn \__whu_set_cjk_font_kaishu:nn #1#2
  {
    \newCJKfontfamily [zhkai] \kaishu {#1} [#2]
  }
\tl_const:Nn \l__whu_cjk_font_options_tl { UprightFont = *, ItalicFont = *, AutoFakeBold }
\cs_new_protected:Npx \__whu_set_cjk_main_font:n #1
  { \__whu_set_cjk_main_font:nn {#1} { \l__whu_cjk_font_options_tl } }
\cs_new_protected:Npx \__whu_set_cjk_sans_font:n #1
  { \__whu_set_cjk_sans_font:nn {#1} { \l__whu_cjk_font_options_tl } }
\cs_new_protected:Npx \__whu_set_cjk_mono_font:n #1
  { \__whu_set_cjk_mono_font:nn {#1} { \l__whu_cjk_font_options_tl } }
\cs_new_protected:Npx \__whu_set_cjk_font_kaishu:n #1
  { \__whu_set_cjk_font_kaishu:nn {#1} { \l__whu_cjk_font_options_tl } }

\bool_new:N \g__whu_style_cjk_fakefont_bool
\tl_new:N \g__whu_style_math_font_choice_tl
%tag 定义键
\keys_define:nn { whu / style }
  {
    font .choices:nn =
      { times, xits, termes, default }
      { \cs_gset_eq:Nc \__whu_style_font_use: { __whu_style_font_set_ \l_keys_choice_tl : } },
    font .value_required:n = true,
    math-font .choices:nn =
      { xits, termes, default }
      { 
        \cs_gset_eq:Nc \__whu_style_math_font_use: { __whu_style_math_font_set_ \l_keys_choice_tl : }
        \tl_gset_eq:NN \g__whu_style_math_font_choice_tl \l_keys_choice_tl
      },
    math-font .value_required:n = true,
    cjk-font .choices:nn =
      { windows, mac, fandol, sourcehan, founder, none }
      { \cs_gset_eq:Nc \__whu_style_cjk_font_use: { __whu_style_cjk_font_set_ \l_keys_choice_tl : } },
    cjk-font .value_required:n = true,
    cjk-fakefont .bool_set:N = \g__whu_style_cjk_fakefont_bool,
    cjk-fakefont .default:n = true
  }


%region 西文字体设置 (english font setting)
%tag times
\cs_new_protected:Npn \__whu_style_font_set_times:
  {
    \setmainfont { Times ~ New ~ Roman }
      [
        SmallCapsFont = { TeX ~ Gyre ~ Termes },
        SmallCapsFeatures = { Letters = SmallCaps }
      ]
  }
%tag xits
\cs_new_protected:Npn \__whu_style_font_set_xits:
  {
    \setmainfont { XITS } 
      [
        Extension      = .otf,
        UprightFont    = *-Regular,
        BoldFont       = *-Bold,
        ItalicFont     = *-Italic,
        BoldItalicFont = *-BoldItalic
      ]
  }
%tag termes
\cs_new_protected:Npn \__whu_style_font_set_termes:
  {
    \setmainfont { texgyretermes }
      [
        Extension      = .otf,
        UprightFont    = *-regular,
        BoldFont       = *-bold,
        ItalicFont     = *-italic,
        BoldItalicFont = *-bolditalic
      ]
  }
\cs_new_protected:Npn \__whu_style_font_set_default: { }
%endregion 西文字体设置

%tag 数学字体设置 (math font setting)
\cs_new_protected:Npn \__whu_style_math_font_set_xits:
  {
    \setmathfont { XITSMath-Regular.otf } 
      [ 
        BoldFont     = XITSMath-Bold.otf,
      ]
    \setmathfont { XITSMath-Regular.otf } 
      [
        range        = {cal, bfcal},
        StylisticSet = 01
      ]
  }
\cs_new_protected:Npn \__whu_style_math_font_set_termes:
  {
    \setmathfont { texgyretermes-math.otf }
  }
\cs_new_protected:Npn \__whu_style_math_font_set_default: { }


%region 中文字体设置 (chinese font setting)
%tag none
\cs_new_protected:Npn \__whu_style_cjk_font_set_none: { }
%tag windows
\cs_new_protected:Npn \__whu_style_cjk_font_set_windows:
  {
    \bool_if:NTF \g__whu_style_cjk_fakefont_bool
      {
        \__whu_set_cjk_main_font:nn { SimSun }
          { AutoFakeBold = 4, AutoFakeSlant = 0.167 }
        \__whu_set_cjk_sans_font:nn { SimHei }
          { AutoFakeBold = 4, AutoFakeSlant = 0.167 }
        \__whu_set_cjk_mono_font:nn { FangSong }
          { AutoFakeBold = 4, AutoFakeSlant = 0.167 }
        \__whu_set_cjk_font_kaishu:nn { KaiTi }
          { AutoFakeBold = 4, AutoFakeSlant = 0.167 }
      }
      {
        \__whu_set_cjk_main_font:nn { SimSun }
          { 
            BoldFont       = SimHei,
            ItalicFont     = KaiTi,
            SlantedFont    = KaiTi,
            BoldItalicFont = SimHei
          }
        \__whu_set_cjk_sans_font:nn { SimHei }
          { BoldFont = *, ItalicFont = *, SlantedFont = *, BoldItalicFont = * }
        \__whu_set_cjk_mono_font:nn { FangSong }
          { BoldFont = *, ItalicFont = *, SlantedFont = *, BoldItalicFont = * }
        \__whu_set_cjk_font_kaishu:nn { KaiTi }
          { BoldFont = *, ItalicFont = *, SlantedFont = *, BoldItalicFont = * }
      }
  }
%tag mac
\cs_new_protected:Npn \__whu_style_cjk_font_set_mac:
  {
    \bool_if:NTF \g__whu_style_cjk_fakefont_bool
      {
        \__whu_set_cjk_main_font:nn { Songti~ SC~ Light }
          {
            BoldFont       = Songti~ SC~ Bold,
            AutoFakeSlant  = 0.167
          }
        \__whu_set_cjk_sans_font:nn { Heiti~ SC~ Light }
          {
            BoldFont      = Heiti~ SC~ Medium,
            AutoFakeSlant = 0.167
          }
        \__whu_set_cjk_mono_font:nn { STFangsong }
          { AutoFakeBold = 4, AutoFakeSlant = 0.167 }
        \__whu_set_cjk_font_kaishu:nn { Kaiti~ SC~ Regular }
          { 
            BoldFont      = Kaiti~ SC~ Bold, 
            AutoFakeSlant = 0.167
          }
      }
      {
        \__whu_set_cjk_main_font:nn { Songti~ SC~ Light }
          {
            BoldFont       = Songti~ SC~ Bold,
            ItalicFont     = Kaiti~ SC~ Regular,
            SlantedFont    = Kaiti~ SC~ Regular,
            BoldItalicFont = Songti~ SC~ Bold
          }
        \__whu_set_cjk_sans_font:nn { Heiti~ SC~ Light }
          {
            BoldFont       = Heiti~ SC~ Medium,
            ItalicFont     = *,
            SlantedFont    = *,
            BoldItalicFont = Heiti~ SC~ Medium
          }
        \__whu_set_cjk_mono_font:nn { STFangsong }
          { BoldFont = *, ItalicFont = *, SlantedFont = *, BoldItalicFont = * }
        \__whu_set_cjk_font_kaishu:nn { Kaiti~ SC~ Regular }
          { 
            BoldFont       = Kaiti~ SC~ Bold, 
            ItalicFont     = *, 
            SlantedFont    = *, 
            BoldItalicFont = Kaiti~ SC~ Bold
          }
      }
  }
%tag fandol
\cs_new_protected:Npn \__whu_style_cjk_font_set_fandol:
  {
    \bool_if:NTF \g__whu_style_cjk_fakefont_bool
      {
        \__whu_set_cjk_main_font:nn { FandolSong-Regular.otf }
          {
            BoldFont      = FandolSong-Bold.otf,
            AutoFakeSlant = 0.167
          }
        \__whu_set_cjk_sans_font:nn { FandolHei-Regular.otf }
          {
            BoldFont      = FandolHei-Bold.otf,
            AutoFakeSlant = 0.167
          }
        \__whu_set_cjk_mono_font:nn { FandolFang-Regular.otf }
          { AutoFakeBold = 4, AutoFakeSlant = 0.167 }
        \__whu_set_cjk_font_kaishu:nn { FandolKai-Regular.otf }
          { AutoFakeBold = 4, AutoFakeSlant = 0.167 }
      }
      {
        \__whu_set_cjk_main_font:nn { FandolSong-Regular.otf }
          {
            BoldFont       = FandolSong-Bold.otf,
            ItalicFont     = FandolKai-Regular.otf,
            SlantedFont    = FandolKai-Regular.otf,
            BoldItalicFont = FandolSong-Bold.otf
          }
        \__whu_set_cjk_sans_font:nn { FandolHei-Regular.otf }
          {
            BoldFont       = FandolHei-Bold.otf,
            ItalicFont     = *,
            SlantedFont    = *,
            BoldItalicFont = FandolHei-Bold.otf
          }
        \__whu_set_cjk_mono_font:nn { FandolFang-Regular.otf }
          { BoldFont = *, ItalicFont = *, SlantedFont = *, BoldItalicFont = * }
        \__whu_set_cjk_font_kaishu:nn { FandolKai-Regular.otf }
          { BoldFont = *, ItalicFont = *, SlantedFont = *, BoldItalicFont = * }
      }
  }
%tag founder
\cs_new_protected:Npn \__whu_style_cjk_font_set_founder:
  {
    \__whu_set_cjk_main_font:nn  { FZShuSong-Z01  } { BoldFont = FZHei-B01, ItalicFont = FZKai-Z03 }
    \__whu_set_cjk_sans_font:n   { FZHei-B01      }
    \__whu_set_cjk_mono_font:n   { FZFangSong-Z02 }
    \__whu_set_cjk_font_kaishu:n { FZKai-Z03      }
  }
%tag source-han
\cs_new_protected:Npn \__whu_style_cjk_font_set_sourcehan:
  {
    \bool_if:NTF \g__whu_style_cjk_fakefont_bool
      {
        \__whu_set_cjk_main_font:nn { Source~ Han~ Serif~ SC }
          {
            UprightFont   = *-Regular,
            BoldFont      = *-Bold,
            AutoFakeSlant = 0.167
          }
        \__whu_set_cjk_sans_font:nn { Source~ Han~ Sans~ SC }
          {
            UprightFont   = *-Regular,
            BoldFont      = *-Bold,
            AutoFakeSlant = 0.167
          }
        \__whu_set_cjk_font_kaishu:nn { FZKai-Z03 }
          { AutoFakeBold = 4, AutoFakeSlant = 0.167 }
        \__whu_set_cjk_mono_font:nn { FZFangSong-Z02 } 
          { AutoFakeBold = 4, AutoFakeSlant = 0.167 }
      }
      {
        \__whu_set_cjk_main_font:nn { Source~ Han~ Serif~ SC }
          {
            UprightFont    = *-Regular,
            BoldFont       = *-Bold,
            ItalicFont     = *-Regular,
            BoldItalicFont = *-Bold
          }
        \__whu_set_cjk_sans_font:nn { Source~ Han~ Sans~ SC }
          {
            UprightFont    = *-Regular,
            BoldFont       = *-Bold,
            ItalicFont     = *-Regular,
            BoldItalicFont = *-Bold
          }
        \__whu_set_cjk_font_kaishu:nn { FZKai-Z03 }
          {
            BoldFont       = *,
            ItalicFont     = *,
            BoldItalicFont = *
          }
        \__whu_set_cjk_mono_font:nn { FZFangSong-Z02 } 
          {
            BoldFont       = *,
            ItalicFont     = *,
            BoldItalicFont = *
          }
      }
  }
%endregion 中文字体设置
%tag 使用字体 (use font)
\AtEndPreamble
  {
    \tl_if_eq:NnTF \g__whu_style_math_font_choice_tl {default}
      {
        \RequirePackage{mathrsfs}
        \DeclareFontFamily{U}{rsfs}{\skewchar\font127 }
        \DeclareFontShape{U}{rsfs}{m}{n}{
          <5-6> rsfs5
          <6-8> rsfs7
          <8-> rsfs10
        }{}
      }
      {
        \RequirePackage [ bold-style = ISO ] { unicode-math }
      }
    \__whu_style_font_use:
    \__whu_style_math_font_use:
    \__whu_style_cjk_font_use:
  }
%tag 设置默认字体
\keys_set:nn { whu / style }
  {
    font         = termes,
    math-font    = termes,
    cjk-font     = fandol,
    cjk-fakefont = false,
  }
%endregion 字体配置

%region 章节标题设置与列表设置

\setlist{nosep}
\keys_define:nn { whu / style }
  {
    chapter-page-header .bool_set:N = \l__whu_style_chapter_page_header_bool,
    chapter-page-header .initial:n = false,
    chapter-page-header .default:n = true,
  }
%tag 本科
\cs_new_protected:Npn \__whu_bachelor_set_ctex_format:
  {
    \keys_set:nn { ctex }
      {
        % 编号到 subsubsection
        secnumdepth = 3,
        chapter = 
          {
            format       = \zihao{-2}\sffamily\centering,
            number       = \arabic{chapter},
            numberformat = \rmfamily,
            name         = {},
            beforeskip   = 0.8 \baselineskip,
            afterskip    = 0.5 \baselineskip,
            fixskip      = true,
            pagestyle    = bachelor-mainmatter
          },
        section = 
          {
            format       = \zihao{4}\sffamily,
            numberformat = \rmfamily,
            beforeskip   = 0.5 \baselineskip,
            afterskip    = 0.5 \baselineskip,
            fixskip      = true,
          },
        subsection = 
          {
            format       = \zihao{-4}\sffamily,
            numberformat = \rmfamily,
            beforeskip   = 0.5 \baselineskip,
            afterskip    = 0.5 \baselineskip,
            fixskip      = true,
          },
        subsubsection = 
          {
            format       = \zihao{-4}\sffamily,
            numberformat = \rmfamily,
            beforeskip   = 0.5 \baselineskip,
            afterskip    = 0.5 \baselineskip,
            fixskip      = true,
          },
    }
  }
\cs_new_protected:Npn \__whu_bachelor_set_enumerate_format:
  {
    % enumerate
    \setenumerate[1]
      {
        labelindent    = \parindent,
        leftmargin     = 0pt,
        widest         = 0,
        itemindent     = *,
        listparindent  = \parindent,
        label          = (\arabic*)
      }
    \setenumerate[2]
      {
        labelindent    = \parindent,
        leftmargin     = 4em,
        itemindent     = 13pt,
        listparindent  = \parindent,
        label          = \circlednumber{\arabic*}
      }
  }
%tag 硕士
\cs_new_protected:Npn \__whu_master_set_ctex_format:
  {
    \keys_set:nn { ctex }
      {
        % 编号到 subsubsection
        secnumdepth = 3,
        chapter = 
          {
            format      = \zihao{-2}\sffamily\raggedright,
            number      = \arabic{chapter},
            name        = {},
            beforeskip  = 4 ex plus 0.5 ex,
            afterskip   = 4 ex plus 0.5 ex,
            fixskip     = true,
            pagestyle   = \bool_if:nTF \l__whu_style_chapter_page_header_bool
              { master-mainmatter } { empty }
          },
        section = 
          {
            format      = \zihao{4}\sffamily,
            % beforeskip  = 0.5 \baselineskip,
            % afterskip   = 0.5 \baselineskip,
            fixskip     = true,
          },
        subsection = 
          {
            format      = \zihao{-4}\sffamily,
            % beforeskip  = 0.5 \baselineskip,
            % afterskip   = 0.5 \baselineskip,
            fixskip     = true,
          },
        subsubsection = 
          {
            format      = \zihao{-4}\sffamily,
            % beforeskip  = 0.5 \baselineskip,
            % afterskip   = 0.5 \baselineskip,
            fixskip     = true,
          },
    }
  }
\cs_new_protected:Npn \__whu_master_set_enumerate_format:
  {
    % enumerate
    \setenumerate[1]
      {
        labelindent    = \parindent,
        leftmargin     = 0pt,
        widest         = 0,
        itemindent     = *,
        listparindent  = \parindent,
        label          = (\arabic*)
      }
    \setenumerate[2]
      {
        labelindent    = \parindent,
        leftmargin     = 4em,
        itemindent     = 13pt,
        listparindent  = \parindent,
        label          = \roman{*}.
      }
  }
%tag 博士
\cs_new_protected:Npn \__whu_doctor_set_ctex_format:
  {
    \keys_set:nn { ctex }
      {
        % 编号到 subsubsection
        secnumdepth = 3,
        chapter = 
          {
            format      = \zihao{-2}\sffamily\raggedright,
            number      = \arabic{chapter},
            name        = {},
            beforeskip  = 4 ex plus 0.5 ex,
            afterskip   = 4 ex plus 0.5 ex,
            fixskip     = true,
            pagestyle   = \bool_if:nTF \l__whu_style_chapter_page_header_bool
              { doctor-mainmatter } { empty }
          },
        section = 
          {
            format      = \zihao{4}\sffamily,
            % beforeskip  = 0.5 \baselineskip,
            % afterskip   = 0.5 \baselineskip,
            fixskip     = true,
          },
        subsection = 
          {
            format      = \zihao{-4}\sffamily,
            % beforeskip  = 0.5 \baselineskip,
            % afterskip   = 0.5 \baselineskip,
            fixskip     = true,
          },
        subsubsection = 
          {
            format      = \zihao{-4}\sffamily,
            % beforeskip  = 0.5 \baselineskip,
            % afterskip   = 0.5 \baselineskip,
            fixskip     = true,
          },
    }
  }
\cs_new_protected:Npn \__whu_doctor_set_enumerate_format:
  {
    % enumerate
    \setenumerate[1]
      {
        labelindent    = \parindent,
        leftmargin     = 0pt,
        widest         = 0,
        itemindent     = *,
        listparindent  = \parindent,
        label          = (\arabic*)
      }
    \setenumerate[2]
      {
        labelindent    = \parindent,
        leftmargin     = 4em,
        itemindent     = 13pt,
        listparindent  = \parindent,
        label          = \roman{*}.
      }
  }
%tag 设置
\use:c { __whu_ \g__whu_thesis_type_tl _set_enumerate_format: }
\use:c { __whu_ \g__whu_thesis_type_tl _set_ctex_format: }
%endregion


%region 页眉页脚样式
\ctex_after_end_preamble:n {
  \tl_new:N \l__whu_info_header_title_tl
  \tl_set_eq:NN \l__whu_info_header_title_tl \l__whu_info_title_tl
  \tl_remove_all:Nn \l__whu_info_header_title_tl { \\ }
}
%tag 本科
\fancypagestyle { bachelor-frontmatter }
  {
    \fancyhf { }
    \fancyfoot[C] { \zihao{5} \Roman{page} }
    \renewcommand \headrulewidth { 0pt } 
  }
\fancypagestyle { bachelor-mainmatter }
  {
    \fancyhf { }
    \fancyfoot[C] { \zihao{5} \arabic{page} }
    \fancyhead[C] { \zihao{5} \__whu_spread_box:nn {8cm} {武汉大学本科毕业论文（设计）}}
    \renewcommand \headrulewidth { 0.5pt } 
    \setlength{\headheight}{13pt}
  }
%tag 硕士
% 页眉从中文摘要开始至论文末，偶数页码内容为：武汉大学硕士学位论文，奇数页码内容为学位论文题目。
% 摘要页码用罗马数字单独编排，并标注在每页页脚中部，英文摘要页码续接中文摘要的页码。
\fancypagestyle { master-frontmatter }
  {
    \fancyhf { }
    \fancyhead [CE] { 武汉大学硕士学位论文 }
    \fancyhead [CO] { \l__whu_info_header_title_tl }
    \fancyfoot [C]  { \zihao{5} \Roman{page} }
  }
\fancypagestyle { master-mainmatter  }
  {
    \fancyhf { }
    \fancyhead [CE] { 武汉大学硕士学位论文 }
    \fancyhead [CO] { \l__whu_info_header_title_tl }
    \fancyfoot [C]  { \zihao{5} \arabic{page} }
  }
%tag 博士
% 页眉从中文摘要开始至论文末，偶数页码内容为“武汉大学博士学位论文”，奇数页码内容为学位论文题目。
\fancypagestyle { doctor-frontmatter }
  {
    \fancyhf { }
    \fancyhead [CE] { 武汉大学博士学位论文 }
    \fancyhead [CO] { \l__whu_info_header_title_tl }
    \fancyfoot [C]  { \zihao{5} \Roman{page} }
  }
\fancypagestyle { doctor-mainmatter  }
  {
    \fancyhf { }
    \fancyhead [CE] { 武汉大学博士学位论文 }
    \fancyhead [CO] { \l__whu_info_header_title_tl }
    \fancyfoot [C]  { \zihao{5} \arabic{page} }
  }
%tag 给-\mainmatter-添加钩子
\AddToHook{ cmd / mainmatter / after }
  { \exp_args:No \pagestyle { \g__whu_thesis_type_tl - mainmatter } }
%endregion


%region 个人信息
%tag 定义键
\keys_define:nn { whu / info }
  {
    title           .tl_set:N = \l__whu_info_title_tl,
    title*          .tl_set:N = \l__whu_info_title_en_tl,
    department      .tl_set:N = \l__whu_info_department_tl,
    department*     .tl_set:N = \l__whu_info_department_en_tl,
    student-id      .tl_set:N = \l__whu_info_student_id_tl,
    author          .tl_set:N = \l__whu_info_author_tl,
    author*         .tl_set:N = \l__whu_info_author_en_tl,
    subject         .tl_set:N = \l__whu_info_subject_tl,
    subject*        .tl_set:N = \l__whu_info_subject_en_tl,
    major           .tl_set:N = \l__whu_info_major_tl,
    major*          .tl_set:N = \l__whu_info_major_en_tl,
    supervisor      .tl_set:N = \l__whu_info_supervisor_tl,
    supervisor*     .tl_set:N = \l__whu_info_supervisor_en_tl,
    supervisor-outer.tl_set:N = \l__whu_info_supervisor_outer_tl,
    academic-title  .tl_set:N = \l__whu_info_supervisor_academic_title_tl,
    academic-title* .tl_set:N = \l__whu_info_supervisor_academic_title_en_tl,
    academic-title-outer.tl_set:N = \l__whu_info_supervisor_outer_academic_title_tl,
    research-area   .tl_set:N = \l__whu_info_research_area_tl,
    research-area*  .tl_set:N = \l__whu_info_research_area_en_tl,
    clc             .tl_set:N = \l__whu_info_clc_tl,
    secret-level    .tl_set:N = \l__whu_info_secret_level_tl,
    udc             .tl_set:N = \l__whu_info_udc_tl,
    year           .int_set:N = \l__whu_info_year_int,
    month          .int_set:N = \l__whu_info_month_int,
    day            .int_set:N = \l__whu_info_day_int,
    keywords     .clist_set:N = \l__whu_info_keywords_clist,
    keywords*    .clist_set:N = \l__whu_info_keywords_en_clist,
  }
%tag 初始化公共键
\keys_set:nn { whu / info }
  {
    year = \c_sys_year_int,
    month = \c_sys_month_int,
    day = \c_sys_day_int,
    keywords = {\LaTeX{}, 毕业论文, 模版, 武汉大学},
    keywords* = {\LaTeX{}, Thesis, Template, Wuhan~University},
    clc = \c_empty_tl,
    secret-level = \c_empty_tl,
    udc = \c_empty_tl,
    student-id = xxxxxxxxxxx
  }

%tag 函数，用于定义常量
% 只定义中文
\cs_new_protected:Npn \__whu_define_name:nn #1#2
  { \tl_const:cn { c__whu_name_ #1 _tl } {#2} }
% 中英文（或中文+拼音）
\cs_new_protected:Npn \__whu_define_name:nnn #1#2#3
  {
    \tl_const:cn { c__whu_name_ #1    _tl } {#2}
    \tl_const:cn { c__whu_name_ #1 _en_tl } {#3}
  }
%tag 本科初始化
\cs_new_protected:Npn \__whu_bachelor_info_initial:
  {
    \clist_map_inline:nn
      {
        { secret_level } { 密级 },
        { student_id } { 学号 },
        { toc } { 目 \hspace{2em} 录 },
      }
      { \__whu_define_name:nn ##1 }
    \clist_map_inline:nn
      {
        { type } { 本科毕业论文（设计） } { BACHELOR’S~DEGREE~THESIS~OF~WUHAN~UNIVERSITY },
        { department } { 学院 } { School (Department) },
        { major } { 专业 } { Major },
        { author } { 姓名 } { Candidate },
        { supervisor } { 指导教师 } { Supervisor },
        { keywords } { 关键词 } { Keywords },
        { abstract } { 摘 \hspace{2em} 要 } { ABSTRACT },
      }
      { \__whu_define_name:nnn ##1 }
    \keys_set:nn { whu / info }
      {
        title           = {武汉大学本科生毕业论文 \LaTeX{} 模版},
        title*          = {A~\LaTeX{}~Thesis~Template~for~Wuhan~University},
        department      = {数学与统计学院},
        department*     = {School~of~Mathematics~and~Statistics},
        major           = {数学与应用数学},
        major*          = {Mathematics~and~Applied~Mathematics},
        author          = {夏大鱼羊},
        author*         = {XIA~Dayuyang},
        supervisor      = {夏大鱼羊},
        supervisor*     = {XIA~Kangwei},
        academic-title  = {教授},
        academic-title* = {Prof},
      }
  }
%tag 硕博公共部分常量定义
\cs_new:Npn \__whu_master_and_doctor_info_initial:
  {
    \clist_map_inline:nn
      {
        { secret_level } { 密级 },
        { clc } { 分类号 },
        { numbering } { 编号 },
        { udc } { UDC },
        { subject_major_academic } { 学科、专业名称 },
        { subject_major_professional } { 专业学位类别、领域 },
        { academic } { 学术学位  },
        { professional } { 专业学位 },
        { toc } { 目 \qquad 录 },
      }
      { \__whu_define_name:nn ##1 }
    \clist_map_inline:nn
      {
        { author } { 研究生姓名 } { Candidate },
        { student_id } { 学号 } { Student~ number },
        { supervisor } { 校内导师姓名、职称 } { Supervisor },
        { supervisor_outer } { 校外导师姓名、职称 } { Supervisor Outside },
        { major } { 专业名称 } { Major },
        { research_area  } { 研究方向 } { Speciality },
        { abstract } { 摘 \hspace{2em} 要 } { ABSTRACT },
        { keywords } { 关键词 } { Keywords },
      }
      { \__whu_define_name:nnn ##1 }
  }
%tag 硕士初始化
\cs_new:Npn \__whu_master_info_initial:
  {
    \clist_map_inline:nn
      {
        { type } { 硕士学位论文 }
      }
      { \__whu_define_name:nn ##1 }
    \keys_set:nn { whu / info }
      {
        title         = {武汉大学硕士学位论文 \LaTeX{} 模版},
        title*        = {A~\LaTeX{}~Thesis~Template~for~Wuhan~University},
        department    = {数学与统计学院},
        department*   = {School~of~Mathematics~and~Statistics},
        major         = {基础数学},
        major*        = {Pure~Mathematics},
        research-area = {函数空间上的算子理论},
        research-area* = {Operator~Theory~on~Function~Spaces},
        author        = {夏大鱼羊},
        author*       = {XIA~Kangwei},
        supervisor    = {夏大鱼羊},
        supervisor*   = {XIA~Dayuyang},
        academic-title = {教授},
        academic-title* = {Prof}
      }
  }
%tag 博士初始化
\cs_new:Npn \__whu_doctor_info_initial:
  {
    \clist_map_inline:nn
      {
        { type } { 博士学位论文 }
      }
      { \__whu_define_name:nn ##1 }
    \keys_set:nn { whu / info }
      {
        title         = {武汉大学博士学位论文 \LaTeX{} 模版},
        title*     = {A~\LaTeX{}~Thesis~Template~for~Wuhan~University},
        department    = {数学与统计学院},
        department*    = {School~of~Mathematics~and~Statistics},
        major         = {基础数学},
        major*        = {Pure~Mathematics},
        research-area = {函数空间上的算子理论},
        research-area* = {Operator~Theory~on~Function~Spaces},
        author        = {夏大鱼羊},
        author*       = {XIA~Kangwei},
        supervisor    = {夏大鱼羊},
        supervisor*   = {XIA~Dayuyang},
        academic-title = {教授},
        academic-title* = {Prof},
      }
  }
%tag 执行初始化
\str_case:xn { \tl_to_str:N \g__whu_thesis_type_tl }
  {
    { bachelor } { \__whu_bachelor_info_initial: }
    { master   } { \__whu_master_and_doctor_info_initial:
                   \__whu_master_info_initial: }
    { doctor   } { \__whu_master_and_doctor_info_initial:
                   \__whu_doctor_info_initial: }
  }
%endregion 个人信息

%region 中文封面
%region 本科
\cs_new_protected:Npn \__whu_bachelor_cover_i:
  {
    \pdfbookmark{中文封面}{titlepage-zh}
    \newgeometry { hmargin = 2.445 cm , vmargin = 2.54cm }
    % logo and type
    \__whu_bachelor_cover_i_logo_and_type:
    % 论文标题
    \__whu_bachelor_cover_i_title:
    % 个人信息
    \__whu_bachelor_cover_i_information:
    % 时间
    \__whu_bachelor_cover_i_date_zh:
    \restoregeometry
  }
%tag logo-and-type
\cs_new_protected:Npn \__whu_bachelor_cover_i_logo_and_type:
  {
    \mode_leave_vertical:
    \skip_vertical:n { 2.01 cm }
    \noindent
    \begin{minipage}[t][3.85cm]{\textwidth}
      \centering
      \includegraphics[ width = 5.5cm ]{ logo / whu-name.pdf }
      \skip_vertical:n { 0.46 cm }
      \zihao{2} \bfseries \c__whu_name_type_tl
    \end{minipage}\par
  }

%tag 论文标题
\cs_new_protected:Npn \__whu_bachelor_cover_i_title:
  {
    \skip_vertical:n { 2.62cm }
    \noindent
    \begin{minipage}[t][5.01cm]{\textwidth}
      \skip_vertical:n { 0.5cm }
      \centering \zihao{1} \kaishu
      \l__whu_info_title_tl
    \end{minipage}\par
  }
%tag 个人信息
\cs_new_protected:Npn \__whu_bachelor_cover_i_information:
  {
    \clist_set:Nx \l__whu_tmpa_clist
      {
        \c__whu_name_author_tl,
        \c__whu_name_student_id_tl,
        \c__whu_name_major_tl,
        \c__whu_name_department_tl,
        \c__whu_name_supervisor_tl
      }
    \clist_set:Nx \l__whu_tmpb_clist
      {
        \l__whu_info_author_tl,
        \l__whu_info_student_id_tl,
        \l__whu_info_major_tl,
        \l__whu_info_department_tl,
        \l__whu_info_supervisor_tl
      }
    \noindent
    \begin{minipage}[t][4.5cm]{\textwidth}
      \zihao{4}
      \skip_vertical:n { 0.26cm }
      \bool_until_do:nn
        { \clist_if_empty_p:N \l__whu_tmpa_clist }
        {
          \clist_pop:NN \l__whu_tmpa_clist \l__whu_tmpa_tl
          \clist_pop:NN \l__whu_tmpb_clist \l__whu_tmpb_tl
          \hspace*{3.65cm}
          \__whu_spread_box:nn { 4em } { \l__whu_tmpa_tl }
          \skip_horizontal:n { 0.25cm } ：
          \makebox[6.91cm][c]{ \l__whu_tmpb_tl }
          \skip_vertical:n { 0.158cm }
        }
    \end{minipage}\par
  }
%tag 时间
\cs_new_protected:Npn \__whu_bachelor_cover_i_date_zh:
  {
    \skip_vertical:n { 4.85cm }
    \noindent
    \begin{minipage}[c][0.83cm]{\textwidth}
      \centering \zihao{4}
      \zhdigits { \int_use:N \l__whu_info_year_int }
      \, 年 \,
      \zhnumber { \int_use:N \l__whu_info_month_int }
      \, 月
    \end{minipage}
  }
%endregion 本科

%region 硕士
\cs_new_protected:Npn \__whu_master_cover_i:
  {
    \pdfbookmark{中文封面}{titlepage-zh}
    \newgeometry { hmargin = 2.445 cm , vmargin = 2.54cm }
    % 顶部四项
    \__whu_master_cover_i_topmatter:
    % logo 和 type
    \__whu_master_cover_i_logo_and_type:
    % class (academic or professional)
    \__whu_master_cover_i_class:
    % 论文标题
    \__whu_master_cover_i_title:
    % 个人信息
    \__whu_master_cover_i_information:
    % 时间
    \__whu_master_cover_i_date_zh:
    \restoregeometry
  }
%tag 顶部四项
\cs_new_protected:Npn \__whu_master_cover_i_topmatter:
  {
    \noindent
    \begin{minipage}[b][0.9cm][b]{\textwidth}
      \fangsong \zihao{4} \mode_leave_vertical:
      \__whu_spread_box_with_end_spaces:nn { 2.04cm } { 分类号 }
      \underline { \hbox_to_wd:nn { 2.41cm } { \hfill \l__whu_info_clc_tl \hfill } }
      \hfill
      \__whu_spread_box_with_end_spaces:nn { 1.67cm } { 密级 }
      \underline { \hbox_to_wd:nn { 2.4cm } { \hfill \l__whu_info_secret_level_tl \hfill } }
    \end{minipage}\par\noindent
    \begin{minipage}[b][0.9cm][b]{\textwidth}
      \fangsong \zihao{4} \mode_leave_vertical:
      \__whu_spread_box_with_end_spaces:nn { 2.04cm } { UDC }
      \underline { \hbox_to_wd:nn { 2.41cm } { \hfill \l__whu_info_udc_tl \hfill } }
      \hfill
      \__whu_spread_box_with_end_spaces:nn { 1.67cm } { 编号 }
      \underline { \hbox_to_wd:nn { 2.4cm } { \hfill 10486 \hfill } }
    \end{minipage}\par
    \skip_vertical:n { 2cm }
  }
%tag logo-and-type
\cs_new_protected:Npn \__whu_master_cover_i_logo_and_type:
  {
    \noindent
    \begin{minipage}[t][3.5cm]{\textwidth}
      \centering
      \includegraphics [ width = 5 cm ] { logo / whu-name.pdf }
      \skip_vertical:n { 0.57cm }
      { \zihao{2} \bfseries 
        \__whu_spread_box_with_quad:n { \c__whu_name_type_tl } }
      \vfil
    \end{minipage}\par
  }
%tag class (academic or professional)
\cs_new_protected:Npn \__whu_master_cover_i_class:
  {
    \noindent
    \begin{minipage}[t][2.25cm]{\textwidth}
      \skip_vertical:n { 0.2cm }
      \centering \zihao{-2} \bfseries
        （\use:c { c__whu_name_ \g__whu_thesis_class_tl _tl}）
    \end{minipage}\par
  }
%tag 论文标题
\cs_new_protected:Npn \__whu_master_cover_i_title:
  {
    \noindent
    \begin{minipage}[t][4.49cm]{\textwidth}
      \skip_vertical:n { 0.23cm }
      \centering \zihao{1} \kaishu \l__whu_info_title_tl
    \end{minipage}\par
  }
%region 个人信息
\cs_new:Npn \__whu_master_cover_i_information:
  {
    \clist_set:Nx \l__whu_tmpa_clist % 个人信息第一列
      {
        \c__whu_name_author_tl,
        \c__whu_name_student_id_tl,
        \c__whu_name_supervisor_tl,
        \tl_if_empty:NF \l__whu_info_supervisor_outer_tl
          { \c__whu_name_supervisor_outer_tl },
        \use:c { c__whu_name_subject_major_ \g__whu_thesis_class_tl _tl },
        \c__whu_name_research_area_tl
      }
    \clist_set:Nx \l__whu_tmpb_clist % 个人信息第二列
      {
        \l__whu_info_author_tl,
        \l__whu_info_student_id_tl,
        \l__whu_info_supervisor_tl \l__whu_info_supervisor_academic_title_tl,
        \tl_if_empty:NF \l__whu_info_supervisor_outer_tl
          { \l__whu_info_supervisor_outer_tl 
            \l__whu_info_supervisor_outer_academic_title_tl },
        \tl_if_empty:NF \l__whu_info_subject_tl
          { \l__whu_info_subject_tl、}
          \l__whu_info_major_tl,
        \l__whu_info_research_area_tl
      }
    \noindent
    \begin{minipage}{\textwidth}
      \zihao{4}
      \skip_vertical:n { 0.35cm }
      \bool_until_do:nn
        { \clist_if_empty_p:N \l__whu_tmpa_clist }
        {
          \clist_pop:NN \l__whu_tmpa_clist \l__whu_tmpa_tl
          \clist_pop:NN \l__whu_tmpb_clist \l__whu_tmpb_tl
          \hspace*{2.19cm}
          \__whu_spread_box_with_end_spaces:nn { 4.67cm } { \l__whu_tmpa_tl }
          \makebox[0.42cm][c]{：}
          \__whu_spread_box_with_end_spaces:nn { 6.17cm } { \l__whu_tmpb_tl }
          \skip_vertical:n { .185cm }
        }
    \end{minipage}\par
    \skip_vertical:n { 1.95cm }
  }
%endregion 个人信息
%tag 时间
\cs_new_protected:Npn \__whu_master_cover_i_date_zh:
  {
    \noindent
    \begin{minipage}[c][0.81cm]{\textwidth}
      \centering \heiti \zihao { 3 }
      \zhdigits { \int_use:N \l__whu_info_year_int}
      年
      \zhnumber { \int_use:N \l__whu_info_month_int }
      月
    \end{minipage}
  }
%endregion 硕士

%region 博士 
% 博士封面与硕士封面的布局一样，唯一的区别就是 logo 下方的论文类型，
% 一个是“博士学位论文”，一个是“硕士学位论文”
\cs_set_eq:NN \__whu_doctor_cover_i: \__whu_master_cover_i:
%endregion 博士
%endregion 中文封面

%region 英文封面
%region 本科
% 本科生是否显示英文封面（教务处规范中没有，黄老师模版中有）
\keys_define:nn { whu / style }
  {
    bachelor-encover .bool_set:N = \l__whu_bachelor_english_cover_bool,
    bachelor-encover .initial:n = false,
    bachelor-encover .default:n = true
  }
\cs_new_protected:Npn \__whu_bachelor_cover_ii:
  {
    \begin{tikzpicture} [ remember~picture, overlay ]
      % 类型
      \__whu_bachelor_cover_ii_type:
      % 标题
      \__whu_bachelor_cover_ii_title:
      % 个人信息
      \__whu_bachelor_cover_ii_information:
      % 时间
      \__whu_bachelor_cover_ii_date_en:
      % 学校名和logo
      \__whu_bachelor_cover_ii_logo:
    \end{tikzpicture}
  }
%tag 类型
\cs_new_protected:Npn \__whu_bachelor_cover_ii_type:
  {
    \node [ anchor = north ] at
      ( [ shift = { ( 0 , -0.07\textheight ) } ] current~page~text~area.north )
      { 
        \bfseries 
        \parbox { 0.6\textwidth }
          {
            \centering \large \linespread{1.4}\selectfont
            \c__whu_name_type_en_tl
            \par
          }
      };
  }
%tag 标题
\cs_new_protected:Npn \__whu_bachelor_cover_ii_title:
  {
    \node (title) at
      ( [ shift = { ( 0 , -0.29\textheight ) } ] current~page~text~area.north )
      { 
        \begin{minipage}{\textwidth}
          \zihao{2} \centering \linespread{1.2}\selectfont
          \l__whu_info_title_en_tl
        \end{minipage}
      };
  }
%tag 个人信息
\cs_new_protected:Npn \__whu_bachelor_cover_ii_information:
  {
    \node (information) at
      ( [shift = {(0em, 0em)}]current~page~text~area.center )
      {
        \tl_put_left:Nn \l__whu_info_supervisor_en_tl
          { \l__whu_info_supervisor_academic_title_en_tl .~ }
        \begin{tabular}{r@{\hspace{.5em}}l}
          \c__whu_name_department_en_tl : & \l__whu_info_department_en_tl \\
          \c__whu_name_major_en_tl : & \l__whu_info_major_en_tl\\
          \c__whu_name_author_en_tl : & \textsc{ \l__whu_info_author_en_tl } \\
          \c__whu_name_supervisor_en_tl : & \textsc{ \l__whu_info_supervisor_en_tl } \\
        \end{tabular}       
      };
  }
%tag 学校名和logo
\cs_new_protected:Npn \__whu_bachelor_cover_ii_logo:
  {
    \node [anchor = south] at ([ shift = { ( 0 , 2.5em ) } ] date.north)
      {
        \zihao{-2}
        \begin{tabular}{c}
          \includegraphics[width=4cm]{./logo/whu-logo.pdf} \\[3pt]
          \textsc{Wuhan~University}
        \end{tabular}
      };
  }
%tag 时间
\prop_const_from_keyval:Nn \l__whu_month_prop
  {
    1  = Jan,
    2  = Feb,
    3  = Mar,
    4  = Apr,
    5  = May,
    6  = Jun,
    7  = Jul,
    8  = Aug,
    9  = Sept,
    10 = Oct,
    11 = Nov,
    12 = Dec,
  }
\cs_new:Npn \__whu_month_cover_to_english_version:n #1
  {
    \prop_get:NnN \l__whu_month_prop {#1} \l__whu_tmpa_tl
    \l__whu_tmpa_tl
  }
\cs_generate_variant:Nn \__whu_month_cover_to_english_version:n { V }
\cs_new_protected:Npn \__whu_bachelor_cover_ii_date_en:
  {
    \node [anchor = south] (date) at
      ([ shift = { ( 0 , 0.05\textheight ) } ] current~page~text~area.south)
      {
        \zihao{-2}
        \__whu_month_cover_to_english_version:V \l__whu_info_month_int, \c_space_tl \int_use:N\l__whu_info_year_int
      };
  }
%endregion 本科
%region 硕士
\cs_new_protected:Npn \__whu_master_cover_ii:
  {
    \pdfbookmark{英文封面}{titlepage-en}
    \begin{tikzpicture} [ remember~picture, overlay ]
      % 标题
      \__whu_master_cover_ii_title:
      % 个人信息
      \__whu_master_cover_ii_information:
      % 时间
      \__whu_master_cover_ii_date_en:
      % 学校名和logo
      \__whu_master_cover_ii_logo:
    \end{tikzpicture}
  }
%tag 标题
\cs_new_protected:Npn \__whu_master_cover_ii_title:
  {
    \node (title) at
      ( [ shift = { ( 0 , -0.1\textheight ) } ] current~page~text~area.north )
      { 
        \begin{minipage}{\textwidth}
          \zihao{2} \centering \linespread{1.2}\selectfont
          \l__whu_info_title_en_tl
        \end{minipage}
      };
  }
%tag 个人信息
\cs_new_protected:Npn \__whu_master_cover_ii_information:
  {
    \node (information) at
      ( [shift = {(0em, 5em)}]current~page~text~area.center )
      {
        \tl_put_left:Nn \l__whu_info_supervisor_en_tl
          { \l__whu_info_supervisor_academic_title_en_tl .~ }
        \renewcommand \arraystretch { 1.2 }
        \AddToHookNext { env / tabular / begin }
          { \zihao{4} }
        \begin{tabular}{r@{\hspace{.5em}}l}
          \c__whu_name_author_en_tl : & \textsc{ \l__whu_info_author_en_tl } \\
          \c__whu_name_student_id_en_tl : & \l__whu_info_student_id_tl \\
          \c__whu_name_supervisor_en_tl : & \textsc{ \l__whu_info_supervisor_en_tl } \\
          \c__whu_name_major_en_tl : & \l__whu_info_major_en_tl \\
          \c__whu_name_research_area_en_tl : & \l__whu_info_research_area_en_tl
        \end{tabular}       
      };
  }
%tag 学校名和logo
\cs_new_protected:Npn \__whu_master_cover_ii_logo:
  {
    \node [anchor = south] at ([ shift = { ( 0 , 2em ) } ] date.north)
      {
        \begin{tabular}{c}
          \includegraphics[width=4cm]{./logo/whu-logo.pdf} \\[3pt]
          \zihao{-2}\l__whu_info_department_en_tl \\[3pt]
          \zihao{-2}\textsc{Wuhan~University}
        \end{tabular}
      };
  }
%tag 时间
\cs_new_protected:Npn \__whu_master_cover_ii_date_en:
  {
    \node [anchor = south] (date) at
      ([ shift = { ( 0 , 0.01\textheight ) } ] current~page~text~area.south)
      {
        \zihao{-2}
        \__whu_month_cover_to_english_version:V \l__whu_info_month_int, \c_space_tl \int_use:N\l__whu_info_year_int
      };
  }
%endregion 硕士
%region 博士
\cs_new_protected:Npn \__whu_doctor_cover_ii:
  {
    \pdfbookmark{英文封面}{titlepage-en}
    \begin{tikzpicture} [ remember~picture, overlay ]
      % 标题
      \__whu_doctor_cover_ii_title:
      % 个人信息
      \__whu_doctor_cover_ii_information:
      % 时间
      \__whu_doctor_cover_ii_date_en:
      % 学校名和logo
      \__whu_doctor_cover_ii_logo:
    \end{tikzpicture}
  }
%tag 标题
\cs_new_protected:Npn \__whu_doctor_cover_ii_title:
  {
    \node (title) at
      ( [ shift = { ( 0 , -0.1\textheight ) } ] current~page~text~area.north )
      { 
        \begin{minipage}{\textwidth}
          \zihao{2} \centering \linespread{1.2}\selectfont
          \l__whu_info_title_en_tl
        \end{minipage}
      };
  }
%tag 个人信息
\cs_new_protected:Npn \__whu_doctor_cover_ii_information:
  {
    \node (information) at
      ( [shift = {(0em, 5em)}]current~page~text~area.center )
      {
        \tl_put_left:Nn \l__whu_info_supervisor_en_tl
          { \l__whu_info_supervisor_academic_title_en_tl .~ }
        \AddToHookNext { env / tabular / begin }
          { \zihao{4} }
          \renewcommand \arraystretch { 1.2 }
        \begin{tabular}{r@{\hspace{.5em}}l}
          \c__whu_name_author_en_tl : & \textsc{ \l__whu_info_author_en_tl } \\
          \c__whu_name_supervisor_en_tl : & \textsc{ \l__whu_info_supervisor_en_tl } \\
          \c__whu_name_major_en_tl : & \l__whu_info_major_en_tl \\
          \c__whu_name_research_area_en_tl : & \l__whu_info_research_area_en_tl
        \end{tabular}       
      };
  }
%tag 学校名和logo
\cs_new_protected:Npn \__whu_doctor_cover_ii_logo:
  {
    \node [anchor = south] at ([ shift = { ( 0 , 2em ) } ] date.north)
      {
        \AddToHookNext { env / tabular / begin }
          { \zihao{-2} }
        \begin{tabular}{c}
          \includegraphics[width=4cm]{./logo/whu-logo.pdf} \\[3pt]
          \l__whu_info_department_en_tl \\[3pt]
          \textsc{Wuhan~University}
        \end{tabular}
      };
  }
%tag 时间
\cs_new_protected:Npn \__whu_doctor_cover_ii_date_en:
  {
    \node [anchor = south] (date) at
      ([ shift = { ( 0 , 0.01\textheight ) } ] current~page~text~area.south)
      {
        \zihao{-2}
        \__whu_month_cover_to_english_version:V \l__whu_info_month_int
        \c_space_tl \int_use:N\l__whu_info_day_int, \c_space_tl \int_use:N\l__whu_info_year_int
      };
  }
%endregion 博士
%endregion 英文封面

%tag 本科原创性声明
\cs_new_protected:Npn \__whu_bachelor_originality_statement:
  {
    \pdfbookmark{原创性声明}{originality-statement}
    \noindent
    \begin{minipage}[b][0.8cm]{\textwidth}
      \centering \zihao{-2} \heiti 原创性声明
    \end{minipage}
    \skip_vertical:n { 1.3cm }
    \group_begin:
      \zihao{-4}
      本人郑重声明：所呈交的论文（设计），是本人在指导教师的指导下，严格按照学校和学院有关规定完成的。除文中已经标明引用的内容外，本论文（设计）不包含任何其他个人或集体已发表及撰写的研究成果。对本论文（设计）做出贡献的个人和集体，均已在文中以明确方式标明。本人承诺在论文（设计）工作过程中没有伪造数据等行为。若在本论文（设计）中有侵犯任何方面知识产权的行为，由本人承担相应的法律责任。
      \skip_vertical:n { 1.61cm }
      \noindent
      \hspace*{4.653cm} \__whu_spread_box:nn{4em}{作者签名}： \makebox[5.285cm][r]{指导教师签名：} \hfil \par
      \noindent
      \hspace*{4.653cm} \__whu_spread_box:nn{4em}{日期}： \hspace{1.28cm}
        \__whu_spread_box:nn{2.5cm}{年月日}
    \group_end:
  }
%tag 本科版权使用授权书
\cs_new_protected:Npn \__whu_bachelor_copyright:
  {
    \pdfbookmark{版权使用授权书}{copyright}
    \skip_vertical:n { 2.3cm }
    \begin{center}
      \heiti \zihao{-2} 版权使用授权书
    \end{center}\par
    \skip_vertical:n { 1.16cm }
    \group_begin:
      \zihao{-4}
      本人完全了解武汉大学有权保留并向有关部门或机构送交本论文（设计）的复印件和电子版，允许本论文（设计）被查阅和借阅。本人授权武汉大学将本论文的全部或部分内容编入有关数据进行检索和传播，可以采用影印、缩印或扫描等复制手段保存和汇编本论文（设计）。
      \skip_vertical:n { 2.1cm }
      \noindent
      \hspace*{4.653cm} \__whu_spread_box:nn{4em}{作者签名}： \makebox[5.285cm][r]{指导教师签名：} \hfil \par
      \noindent
      \hspace*{4.653cm} \__whu_spread_box:nn{4em}{日期}： \hspace{1.28cm}
        \__whu_spread_box:nn{2.5cm}{年月日}
    \group_end:
  }
%tag 硕士原创性声明
\fp_const:Nn \c__whu_master_statement_line_spread_fp
  { \dim_ratio:nn { 28 bp } { 14 bp } / 1.2 }
\cs_new_protected:Npn \__whu_master_statement:
  {
    \pdfbookmark{原创性声明}{statement}
    \group_begin:
      \keys_set:nn { ctex }
        {
          chapter =
            {
              format = \sffamily\zihao{-2}\centering,
              afterskip = 8ex,
              pagestyle = empty
            }
        }
      \chapter*{论文原创性声明}
      \linespread{1}
      \fontsize{14bp}{28bp}\selectfont
      本人郑重声明：所呈交的学位论文，是本人在导师指导下，独立进行研究工作所取得的研究成果。除文中已经标明引用的内容外，本论文不包含任何其他个人或集体已经发表或撰写过的研究成果。对本文的研究做出贡献的个人和集体，均已在文中以明确方式标明。本声明的法律结果由本人承担。
      
      \vspace*{3em}
      \begin{flushright}
        学位论文作者（签名）：\hspace*{4em}\mbox{}\\[12pt]
        年 \qquad 月 \qquad 日
      \end{flushright}
    \group_end:
  }
%tag 博士原创性声明
\cs_new_protected:Npn \__whu_doctor_statement:
  {
    \pdfbookmark{原创性声明}{statement}
    \group_begin:
      \keys_set:nn { ctex }
        {
          chapter =
            {
              format = \sffamily\zihao{-2}\centering,
              afterskip = 8ex,
              pagestyle = empty
            }
        }
      \pdfbookmark{原创性声明}{doctor-statement}
      \chapter*{论文原创性声明}
      \linespread{1}
      \fontsize{14bp}{28bp}\selectfont
      本人郑重声明：所呈交的学位论文，是本人在导师指导下，独立进行研究工作所取得的研究成果。除文中已经标明引用的内容外，本论文不包含任何其他个人或集体已发表或撰写的研究成果。对本文的研究做出贡献的个人和集体，均已在文中以明确方式标明。本声明的法律结果由本人承担。
      
      \vspace*{3em}
      \begin{flushright}
        学位论文作者（签名）：\hspace*{4em}\mbox{}\\[12pt]
        年 \qquad 月 \qquad 日
      \end{flushright}
    \group_end:
  }

%region 硕博使用授权协议书
%tag 协议书内容
\cs_new_protected:Npn \__whu_master_doctor_license_agreement:
  {
    \group_begin:
      \keys_set:nn { ctex }
        {
          chapter =
            {
              format = \sffamily\zihao{4}\centering,
              beforeskip = 2ex,
              afterskip = 8ex,
              pagestyle = empty
            }
        }
      \chapter*{武汉大学学位论文使用授权协议书}
      \pdfbookmark{使用授权协议书}{license-agreement}
      \linespread{1}
      \fontsize{12bp}{28bp}\selectfont
      本学位论文作者愿意遵守武汉大学关于保存、使用学位论文的管理办法及规定，即：学校有权保存学位论文的印刷本和电子版，并提供文献检索与阅览服务；学校可以采用影印、缩印、数字化或其它复制手段保存论文；在以教学与科研服务为目的前提下，学校可以在校园网内公布部分或全部内容。 \par
      \textbf{一、}在本论文提交当年，同意在校园网内以及中国高等教育文献保障系统（CALIS）、高校学位论文系统提供查询及前十六页浏览服务。 \par
      \textbf{二、}在本论文提交 $\square$ 当年／$\square$一年／$\square$ 两年／$\square$ 三年以后，同意在校园网内允许读者在线浏览并下载全文，学校可以为存在馆际合作关系的兄弟高校用户提供文献传递服务和交换服务。（保密论文解密后遵守此规定）\par
      
      \vspace*{3em}
      \begin{minipage}{0.5\textwidth}
        论文作者（签名）：\__whu_rulefill: \\[12pt]
        学号：          \__whu_rulefill: \\[12pt]
        学院：          \__whu_rulefill:
      \end{minipage} \par \skip_vertical:n { 18pt }
      \hfill 日期：\hspace{3em} 年 \qquad 月 \qquad 日
    \group_end:
  }
%tag 控制协议书是否输出
\keys_define:nn { whu / style }
  {
    license .bool_set:N = \l__whu_license_output_bool,
    license .initial:n = true,
    license .default:n = true,
  }
\AtEndDocument{
  \bool_if:NT \l__whu_license_output_bool
    \__whu_master_doctor_license_agreement:
}
%endregion 硕博使用授权协议书

%tag 博士论文创新点
\cs_new_protected:Npn \__whu_doctor_innovation:
  {
    \pdfbookmark{论文创新点}{innovation}
    \group_begin:
    \keys_set:nn { ctex } 
      {
        chapter =
          {
            format+ = \centering,
            pagestyle = empty
          }
      }
    \chapter*{ 论文创新点 }
    \pdfbookmark{ 论文创新点 }{ doctor-innovation }
    \zihao{-4}
    \file_if_exist:nT { pages / innovation.tex }
      {
        \file_input:n { pages / innovation.tex }
      }
    \newpage
    \group_end:
  }

%region 摘要和关键词
%tag 摘要与关键词之间的间距样式
\str_new:N \l__whu_abstract_keywords_zh_type_str  % 摘要和关键词之间的换行情况
\str_new:N \l__whu_abstract_keywords_en_type_str  % 摘要和关键词之间的换行情况
\keys_define:nn { whu / style }
  {
    abstract-keywords-type  .choices:nn = { newline, blankline, vfill }
     { \str_set:Nx \l__whu_abstract_keywords_zh_type_str { \l_keys_choice_tl } },
    abstract-keywords-type .initial:n = blankline,
    abstract-keywords-type* .choices:nn = { newline, blankline, vfill }
     { \str_set:Nx \l__whu_abstract_keywords_en_type_str { \l_keys_choice_tl } },
  }
% 如果只设置了 zh 的就默认 en 和 zh 相同
\AtEndPreamble
  {
    \str_if_empty:NT \l__whu_abstract_keywords_en_type_str
      { \str_set_eq:NN \l__whu_abstract_keywords_en_type_str \l__whu_abstract_keywords_zh_type_str }
  }
%tag 本科
\cs_new_protected:Npn \__whu_bachelor_abstract_output:
  {
    \group_begin:
      \keys_set:nn { ctex } 
        {
          chapter =
            {
              pagestyle  = bachelor-frontmatter,
              format     = \heiti \zihao{-2} \centering,
              beforeskip = 15pt,
              afterskip  = 20pt
            }
        }
      \chapter* { \c__whu_name_abstract_tl }
      \addcontentsline{toc}{chapter}{摘要}
      \zihao{-4}
      \file_if_exist:nT { pages/abstract.tex }
        {
          \file_input:n { pages/abstract.tex }
        }
      \__whu_abstract_keywords_zh_vsep_set:
      {\bfseries \c__whu_name_keywords_tl ：}
    \clist_use:Nn \l__whu_info_keywords_clist {；}
    \newpage
    \group_end:
  }
\cs_new_protected:Npn \__whu_bachelor_abstract_en_output:
  {
    \group_begin:
      \keys_set:nn { ctex } 
        {
          chapter =
            {
              numbering  = false,
              format     = \normalfont \bfseries \centering \zihao{-2},
              pagestyle  = bachelor-frontmatter,
              beforeskip = 15pt,
              afterskip  = 20pt
            }
        }
      \chapter{ \c__whu_name_abstract_en_tl }
      \zihao{-4}
      % \g__whu_abstract_en_content_tl
      \file_if_exist:nT { pages/enabstract.tex }
        {
          \file_input:n { pages/enabstract.tex }
        }
      \__whu_abstract_keywords_zh_vsep_set:
      {\textbf { \c__whu_name_keywords_en_tl :} ~}
      \clist_use:Nn \l__whu_info_keywords_en_clist {;~}
      \newpage
    \group_end:
  }
\cs_new:Npn \__whu_abstract_keywords_zh_vsep_set:
  {
    \str_case:Vn \l__whu_abstract_keywords_zh_type_str
      {
        { newline } { \par \noindent }
        { blankline } { \par \vspace*{ .5\baselineskip } \noindent }
        { vfill } { \par \vfill \noindent }
      }
  }
\cs_new:Npn \__whu_abstract_keywords_en_vsep_set:
  {
    \str_case:Vn \l__whu_abstract_keywords_en_type_str
      {
        { newline } { \par \noindent}
        { blankline } { \par \vspace*{ .5\baselineskip } \noindent }
        { vfill } { \vfill }
      }
  }
%tag 硕士
\cs_new_protected:Npn \__whu_master_abstract_output:
  {
    \group_begin:
      \keys_set:nn { ctex } 
        {
          chapter =
            {
              numbering = false,
              format+ = \centering,
              pagestyle = master-frontmatter
            }
        }
      \chapter{ \c__whu_name_abstract_tl }
      \zihao{-4}
      \file_if_exist:nT { pages/abstract.tex }
        {
          \file_input:n { pages/abstract.tex }
        }
      \__whu_abstract_keywords_zh_vsep_set:
      {\heiti \c__whu_name_keywords_tl ：}
    \clist_use:Nn \l__whu_info_keywords_clist {；}
    \newpage
    \group_end:
  }
\cs_new_protected:Npn \__whu_master_abstract_en_output:
  {
    \group_begin:
      \keys_set:nn { ctex } 
        {
          chapter =
            {
              numbering = false,
              format    = \normalfont\bfseries\centering\zihao{-2},
              pagestyle = master-frontmatter
            }
        }
      \chapter{ \c__whu_name_abstract_en_tl }
      \zihao{-4}
      % \g__whu_abstract_en_content_tl
      \file_if_exist:nT { pages/enabstract.tex }
        {
          \file_input:n { pages/enabstract.tex }
        }
      \__whu_abstract_keywords_zh_vsep_set:
      {\textbf { \c__whu_name_keywords_en_tl :} ~}
      \clist_use:Nn \l__whu_info_keywords_en_clist {;~}
      \newpage
    \group_end:
  }
%tag 博士
\cs_new_protected:Npn \__whu_doctor_abstract_output:
  {
    \group_begin:
      \keys_set:nn { ctex } 
        {
          chapter =
            {
              numbering = false,
              format+ = \centering,
              pagestyle = doctor-frontmatter
            }
        }
      \chapter{ \c__whu_name_abstract_tl }
      \zihao{-4}
      \file_if_exist:nT { pages/abstract.tex }
        {
          \file_input:n { pages/abstract.tex }
        }
      \__whu_abstract_keywords_zh_vsep_set:
      {\heiti \c__whu_name_keywords_tl ：}
    \clist_use:Nn \l__whu_info_keywords_clist {；}
    \newpage
    \group_end:
  }
\cs_new_protected:Npn \__whu_doctor_abstract_en_output:
  {
    \group_begin:
      \keys_set:nn { ctex } 
        {
          chapter =
            {
              numbering = false,
              format    = \normalfont\bfseries\centering\zihao{-2},
              pagestyle = doctor-frontmatter
            }
        }
      \chapter{ \c__whu_name_abstract_en_tl }
      \zihao{-4}
      \file_if_exist:nT { pages/enabstract.tex }
        {
          \file_input:n { pages/enabstract.tex }
        }
      \__whu_abstract_keywords_zh_vsep_set:
      {\textbf { \c__whu_name_keywords_en_tl :} ~}
      \clist_use:Nn \l__whu_info_keywords_en_clist {;~}
      \newpage
    \group_end:
  }
%endregion

%region 定义封面、声明、摘要、目录部分的输出格式
%tag 本科
\cs_new_protected:Npn \__whu_bachelor_frontmatter_output:
  {
    \pagestyle{empty}
    \__whu_bachelor_cover_i:
    \bool_if:NT \l__whu_bachelor_english_cover_bool
      {
        \newpage
        \__whu_bachelor_cover_ii:
      }
    \newpage
    \__whu_bachelor_originality_statement:
    \__whu_bachelor_copyright:
    \newpage
    \frontmatter
    \pagenumbering{Roman}
    \pagestyle{ bachelor-frontmatter }
    \__whu_bachelor_abstract_output:
    \newpage
    \__whu_bachelor_abstract_en_output:
    \newpage
  }
%tag 硕士
\cs_new_protected:Npn \__whu_master_frontmatter_output:
  {
    \pagestyle{empty}
    \__whu_master_cover_i:
    \__whu_new_blank_page:
    \__whu_master_cover_ii:
    \__whu_new_blank_page:
    \__whu_master_statement:
    \newpage
    \frontmatter
    \pagestyle{ master-frontmatter }
    \pagenumbering{Roman}
    \__whu_master_abstract_output:
    \newpage
    \__whu_master_abstract_en_output:
    \newpage
  }
%tag 博士
\cs_new_protected:Npn \__whu_doctor_frontmatter_output:
  {
    \pagestyle{empty}
    \__whu_doctor_cover_i:
    \__whu_new_blank_page:
    \__whu_doctor_cover_ii:
    \__whu_new_blank_page:
    \__whu_doctor_statement:
    \__whu_new_blank_page:
    \__whu_doctor_innovation:
    \frontmatter
    \pagestyle{ doctor-frontmatter }
    \pagenumbering{Roman}
    \__whu_doctor_abstract_output:
    \newpage
    \__whu_doctor_abstract_en_output:
    \newpage
  }
%endregion

%tag 输出封面、声明、摘要、目录
\ctex_after_end_preamble:n
  {
    \use:c { __whu_ \g__whu_thesis_type_tl _frontmatter_output: }
  }

%region 目录
%tag 本科设置
\cs_new:Npn \__whu_bachelor_set_tocline:
  {
    \keys_set:nn { ctex }
      { contentsname   = \c__whu_name_toc_tl }
    % 字体字号
    \renewcommand{\cftchapfont}{\bfseries \zihao{-4}}
    \renewcommand{\cftsecfont}{\normalfont \zihao{-4}}
    \renewcommand{\cftsubsecfont}{\normalfont \zihao{-4}}
    \renewcommand{\cftchappagefont}{\normalfont \zihao{-4}}
    % 引导线
    \renewcommand{\cftchapleader}{\cftdotfill{\cftdotsep}}
    % 缩进
    \dim_set:Nn \cftchapindent { 0em }
    \dim_set:Nn \cftsecindent  { 1em }
    \dim_set:Nn \cftsubsecindent { 3em }
    % 计数器宽度
    \dim_set:Nn \cftchapnumwidth { 1.5em }
    \dim_set:Nn \cftsecnumwidth { 2.5em }
    \dim_set:Nn \cftsubsecnumwidth { 1.5em }
    % 垂直间距
    \setlength{\cftbeforechapskip}{0pt}
  }
%tag 硕士设置
\cs_new:Npn \__whu_master_set_tocline:
  {
    \keys_set:nn { ctex }
      { contentsname   = \c__whu_name_toc_tl }
    % 字体字号
    \renewcommand{\cftchapfont}{\heiti \zihao{4}}
    \renewcommand{\cftsecfont}{\normalfont \zihao{-4}}
    \renewcommand{\cftsubsecfont}{\normalfont \zihao{-4}}
    % % 缩进
    % \dim_set:Nn \cftchapindent { 0em }
    % \dim_set:Nn \cftsecindent  { 0em }
    % \dim_set:Nn \cftsubsecindent { 0em }
    % 计数器宽度
    % \dim_set:Nn \cftchapnumwidth { 1.5em }
    \dim_set:Nn \cftsecnumwidth { 2em }
    \dim_set:Nn \cftsubsecnumwidth { 2.8em }
    % chapter前的额外垂直间距
    % \dim_set:Nn \cftbeforechapskip { 0.5\baselineskip }
    % section前的额外垂直间距
    % \dim_set:Nn \cftbeforesecskip { 0.2\baselineskip }
    % subsection前的额外垂直间距
    % \dim_set:Nn \cftbeforesubsecskip { 0pt }
  }
%tag 博士设置
\cs_new:Npn \__whu_doctor_set_tocline:
  {
    \keys_set:nn { ctex }
      { contentsname   = \c__whu_name_toc_tl }
    % 字体字号
    \renewcommand{\cftchapfont}{\bfseries \zihao{4}}
    \renewcommand{\cftsecfont}{\normalfont \zihao{-4}}
    \renewcommand{\cftsubsecfont}{\normalfont \zihao{-4}}
    % 引导线
    \renewcommand{\cftchapleader}{\cftdotfill{\cftdotsep}}
    % % 缩进
    % \dim_set:Nn \cftchapindent { 0em }
    % \dim_set:Nn \cftsecindent  { 2em }
    % \dim_set:Nn \cftsubsecindent { 4em }
    % 计数器宽度
    % \dim_set:Nn \cftchapnumwidth { 1.5em }
    \dim_set:Nn \cftsecnumwidth { 2em }
    \dim_set:Nn \cftsubsecnumwidth { 2.8em }
    % % chapter前的额外垂直间距
    % \dim_set:Nn \cftbeforechapskip { 0.5\baselineskip }
    % % section前的额外垂直间距
    % \dim_set:Nn \cftbeforesecskip { 0.4\baselineskip }
    % % subsection前的额外垂直间距
    % \dim_set:Nn \cftbeforesubsecskip { 0.1\baselineskip }
  }
%tag 启动设置
\use:c { __whu_ \g__whu_thesis_type_tl _set_tocline: }

%tag 重定义目录
\cs_set_eq:NN \__whu_old_tableofcontents: \tableofcontents
\RenewDocumentCommand \tableofcontents { }
  {
    \group_begin:
    \keys_set:nn { ctex }
      { 
        chapter / format += \centering,
        chapter / pagestyle = \tl_use:N \g__whu_thesis_type_tl -frontmatter
      }
    \__whu_old_tableofcontents:
    \group_end:
  }
%endregion 目录

%region 插图目录和表格目录
\keys_set:nn { ctex }
  {
    listfigurename = { 插\qquad 图 },
    listtablename  = { 表\qquad 格 }
  }
\cs_set_eq:NN \__whu_old_listoffigures: \listoffigures
\RenewDocumentCommand \listoffigures { }
  {
    \group_begin:
    \keys_set:nn { ctex }
      { 
        chapter / format += \centering,
        chapter / pagestyle = \tl_use:N \g__whu_thesis_type_tl -frontmatter
      }
    \__whu_old_listoffigures:
    \group_end:
  }
\cs_set_eq:NN \__whu_old_listoftables: \listoftables
\RenewDocumentCommand \listoftables { }
  {
    \group_begin:
    \keys_set:nn { ctex }
      { 
        chapter / format += \centering,
        chapter / pagestyle = \tl_use:N \g__whu_thesis_type_tl -frontmatter
      }
    \__whu_old_listoftables:
    \group_end:
  }
%endregion 插图和表格

%tag 致谢环境
\NewDocumentEnvironment{acknowledgements}{ +b }
  {
    \group_begin:
      \keys_set:nn { ctex }
        {
          chapter / format = \centering \zihao{-2} \heiti,
        }
      \chapter* { 致 \qquad 谢 }
      \addcontentsline{toc}{chapter}{致谢}
      #1
    \group_end:
  }{}

%region 附录设置
\cs_new:Npn \__whu_bachelor_set_appendix:
  {
    \AddToHook { cmd / appendix / after }
      {
        \renewcommand{ \theequation }{ \thechapter \arabic{equation} } 
        \keys_set:nn { ctex }
          {
            section/number = \Alph{chapter}\arabic{section},
            subsection/number = \Alph{chapter}\arabic{section}.\arabic{subsection},
            subsubsection/number = \Alph{chapter}\arabic{section}.\arabic{subsection}.\arabic{subsubsection},
          }
      }
  }
\tl_if_eq:NnT \g__whu_thesis_type_tl { bachelor }
  {
    \__whu_bachelor_set_appendix:
  }
%endregion 附录设置

%region 脚注
\cs_new_protected:Npn \__whu_define_fn_style:nn #1#2
  { \tl_const:cn { c__whu_fn_style_ #1 _tl } {#2} }
\cs_new:Npn \__whu_symbol:n #1 { \tex_char:D #1 \scan_stop: } % \tex_char:D = \char

\clist_map_inline:nn
  {
    { plain           } { plain           },
    { libertinus      } { libertinus      },
    { libertinus_neg  } { libertinus*     },
    { libertinus_sans } { libertinus-sans },
    { pifont          } { pifont          },
    { pifont_neg      } { pifont*         },
    { pifont_sans     } { pifont-sans     },
    { pifont_sans_neg } { pifont-sans*    },
    { xits            } { xits            },
    { xits_sans       } { xits-sans       },
    { xits_sans_neg   } { xits-sans*      }
  }
  { \__whu_define_fn_style:nn #1 }
%tag 定义键
\tl_new:N \l__whu_fn_style_tl
\keys_define:nn { whu / style }
  {
    footnote-style .choices:nn =
      {
        plain,
        libertinus, libertinus*, libertinus-sans,
        pifont,     pifont*,     pifont-sans,     pifont-sans*,
        xits,                    xits-sans,       xits-sans*
      }
      {
        \tl_gset_eq:NN \l__whu_fn_style_tl \l_keys_choice_tl
        \int_compare:nT { 5 <= \l_keys_choice_int <= 8 }
          { \RequirePackage { pifont } }
      },
    footnote-style .value_required:n = true
  }
%tag 设置键
\keys_set:nn { whu / style }
  {
    footnote-style = libertinus
  }
%tag libertinus
\cs_new:Npn \__whu_fn_symbol_libertinus:n #1
  {
    \int_compare:nTF { #1 >= 21 }
      {
        \int_compare:nTF { #1 >= 47 }
          { \__whu_symbol:n { \int_eval:n { "24B6 - 47 + #1 } } }
          { \__whu_symbol:n { \int_eval:n { "24D0 - 21 + #1 } } }
      }
      { \__whu_symbol:n { \int_eval:n { "2460 - 1 + #1 } } }
  }
\cs_new:Npn \__whu_fn_symbol_libertinus_neg:n #1
  {
    \int_compare:nTF { #1 >= 11 }
      { \__whu_symbol:n { \int_eval:n { "24EB - 11 + #1 } } }
      { \__whu_symbol:n { \int_eval:n { "2776 -  1 + #1 } } }
  }
\cs_new_eq:NN \__whu_fn_symbol_libertinus_sans:n \__whu_fn_symbol_libertinus:n
%tag pifont texdoc psnfss2e
\cs_new:Npn \__whu_fn_symbol_pifont:n #1
  { \ding { \int_eval:n { 171 + #1 } } }
\cs_new:Npn \__whu_fn_symbol_pifont_neg:n #1
  { \ding { \int_eval:n { 181 + #1 } } }
\cs_new:Npn \__whu_fn_symbol_pifont_sans:n #1
  { \ding { \int_eval:n { 191 + #1 } } }
\cs_new:Npn \__whu_fn_symbol_pifont_sans_neg:n #1
  { \ding { \int_eval:n { 201 + #1 } } }
%tag xits
\cs_new:Npn \__whu_fn_symbol_xits:n #1
  {
    \int_compare:nTF { #1 >= 10 }
      {
        \int_compare:nTF { #1 >= 36 }
          { \__whu_symbol:n { \int_eval:n { "24B6 - 36 + #1 } } }
          { \__whu_symbol:n { \int_eval:n { "24D0 - 10 + #1 } } }
      }
      { \__whu_symbol:n { \int_eval:n { "2460 - 1 + #1 } } }
  }
\cs_new:Npn \__whu_fn_symbol_xits_sans:n #1
  { \__whu_symbol:n { \int_eval:n { "2780 - 1 + #1 } } }
\cs_new:Npn \__whu_fn_symbol_xits_sans_neg:n #1
  { \__whu_symbol:n { \int_eval:n { "278A - 1 + #1 } } }
%tag 定义脚注计数器格式
\cs_set:Npn \thefootnote { \whu_footnote_number:N \c@footnote }
\cs_new:Npn \whu_footnote_number:N #1
  {
    \tl_case:NnF \l__whu_fn_style_tl
      {
        \c__whu_fn_style_plain_tl
          { \int_use:N #1 }
        \c__whu_fn_style_libertinus_tl
          {
            \fontspec { LibertinusSerif-Regular .otf }
            \__whu_fn_symbol_libertinus:n {#1}
          }
        \c__whu_fn_style_libertinus_neg_tl
          {
            \fontspec { LibertinusSerif-Regular .otf }
            \__whu_fn_symbol_libertinus_neg:n {#1}
          }
        \c__whu_fn_style_libertinus_sans_tl
          {
            \fontspec { LibertinusSans-Regular .otf }
            \__whu_fn_symbol_libertinus_sans:n {#1}
          }
        \c__whu_fn_style_pifont_tl
          { \__whu_fn_symbol_pifont:n {#1} }
        \c__whu_fn_style_pifont_neg_tl
          { \__whu_fn_symbol_pifont_neg:n {#1} }
        \c__whu_fn_style_pifont_sans_tl
          { \__whu_fn_symbol_pifont_sans:n {#1} }
        \c__whu_fn_style_pifont_sans_neg_tl
          { \__whu_fn_symbol_pifont_sans_neg:n {#1} }
        \c__whu_fn_style_xits_tl
          {
            \fontspec { XITS-Regular .otf }
            \__whu_fn_symbol_xits:n {#1}
          }
        \c__whu_fn_style_xits_sans_tl
          {
            \fontspec { XITS-Regular .otf }
            \__whu_fn_symbol_xits_sans:n {#1}
          }
        \c__whu_fn_style_xits_sans_neg_tl
          {
            \fontspec { XITS-Regular .otf }
            \__whu_fn_symbol_xits_sans_neg:n {#1}
          }
      }
      { \int_use:N #1 }
  }
\cs_set:Npn \@makefntext #1
  {
    \mode_leave_vertical:
    \hbox_to_wd:nn { 1 em } { \@thefnmark \hfil }
    \zihao{5}
    #1
  }
%tag 修改脚注的横线长度
\cs_set:Npn \footnoterule
  {\kern-3\p@ \hrule \@width 2in \@height 1pt \kern 2.6\p@ }
%endregion 脚注

%tag 符号表
\NewDocumentEnvironment { notation } { O{符号表} O{lp{7.5cm}} }
  {
    \newpage
    \__whu_notation_begin:n {#1}
    \group_begin:
      \centering
      \tabular{ #2 }
  }
  {
      \endtabular
      \newpage
    \group_end:
  }
\cs_new_protected:Npn \__whu_notation_begin:n #1
  {
    \group_begin:
      \keys_set:nn { ctex }
        {
          chapter / format   += \centering,
          chapter / numbering = false,
          chapter / pagestyle = \tl_use:N \g__whu_thesis_type_tl -frontmatter
        }
      \chapter { #1 }
    \group_end:
  }


%region 图表设置
% 本科的最新规定是：
% 图标题位于图下方；图标题宋体粗体五号，图内容宋体五号
% 表标题位于表格上方；表标题宋体粗体五号，表内容宋体五号
% 硕博的规定不清楚，先按和本科一样处理

% 图
\DeclareCaptionFont { whufigurecaptionfont }
  { \bfseries \zihao { 5 } }
% 表
\DeclareCaptionFont { whutablecaptionfont }
  { \bfseries \zihao { 5 } }

\captionsetup [ figure ]
  {
    font     = whufigurecaptionfont,
    position = bottom,
    labelsep = space
  }
\captionsetup [ table  ]
  {
    font     = whutablecaptionfont,
    position = top,
    labelsep = space
  }
\AddToHook { env / tabular / begin }
  { \zihao{5} }
%endregion 图表设置

%region 定理类环境 (theorem-like environments)

% 去掉 . 号，但只能通过新定义 style 的方式进行
\declaretheoremstyle
  [
    headpunct     = {},
    postheadspace = { 0.5em },
    headindent    = 2\ccwd
  ]
  { whustyle }
\cs_new:Npn \__whu_declare_theorem_with_counter_within:n #1
  {
    \declaretheorem
      [
        style   = whustyle,
        name    = \clist_item:nn {#1} {1} ,
        refname = \clist_item:nn {#1} {2} ,
        within  = \clist_item:nn {#1} {3} ,
      ]
      { \clist_item:nn {#1} {4} }
  }
\cs_new:Npn \__whu_declare_theorem_with_counter_sibling:n #1
  {
    \declaretheorem
      [
        style   = whustyle ,
        name    = \clist_item:nn {#1} {1} ,
        refname = \clist_item:nn {#1} {2} ,
        sibling = \clist_item:nn {#1} {3} ,
      ]
      { \clist_item:nn {#1} {4} }
  }


\clist_map_function:nN
  {
    { 定理, 定理, section, theorem },
    { 例, 例, section, example },
    { 问题, 问题, section, question },
    { 定义, 定义, section, definition },
    { 性质, 性质, section, property },
    { 命题, 命题, section, proposition },
    { 推论, 推论, section, corollary },
    { 引理, 引理, section, lemma },
    { 公理, 公理, section, axiom },
    { 反例, 反例, section, counterexample },
    { 猜想, 猜想, section, conjecture },
    { 断言, 断言, section, claim },
    { 注, 注, section, remark }
  }
  \__whu_declare_theorem_with_counter_within:n


\NewDocumentCommand { \whunewtheorem } { s O{} m m }
  {
    \IfBooleanTF {#1}
      {
        % 有*
        \declaretheorem
          [
            style = whustyle,
            name =  #4 ,
            refname = #4 ,
            numbered = no,
            #2
          ]
          { #3 }
      }
      {
        % 无*
        \declaretheorem
          [
            style = whustyle,
            name =  #4 ,
            refname = #4 ,
            #2
          ]
          { #3 }
      }
  }

% 重定义 proof 环境的样式
\RenewDocumentEnvironment { proof } { O{\proofname} +b }
  {
    \par
    \pushQED { \qed }
    \normalfont \topsep6 \p@ \@plus6 \p@ \relax
    \trivlist
    \item \relax
    \group_begin:
      \hspace*{2\ccwd}
      \bfseries #1 \@addpunct{:}
    \group_end:
    \hspace \labelsep \ignorespaces
    #2
  }
  {
    \popQED \endtrivlist \@endpefalse
  }
%endregion 定理类环境

% 封装 LaTeX 的钩子管理机制。本模板中的字体加载命令位于
% begindocument/before 钩子中，需确保在 xeCJK 之前执行。
\cs_new_protected:Npn \__whu_gadd_ltxhook:nn #1#2
  { \hook_gput_code:nnn {#1} { . } {#2} }
\hook_gset_rule:nnnn { begindocument/before } { . } { < } { xeCJK }

%region 参考文献 (bibliography)
%tag 定义变量
\tl_new:N \l__whu_bib_backend_tl        % 参考文献后端
\tl_new:N \l__whu_bib_style_tl          % 参考文献格式，接受其它值
\tl_new:N \l__whu_bib_gb_style_tl       % 参考文献格式（国标），接受 numerical 和 author-year 两个值
\tl_new:N \l__whu_cite_style_tl         % 参考文献引用格式
\clist_new:N \l__whu_bib_resource_clist % 参考文献 database
%tag 定义键
\keys_define:nn { whu / style }
  {
    bib-backend .choice:,
    bib-backend .value_required:n = true,
    bib-backend / bibtex   .code:n =
      { \tl_set:Nn \l__whu_bib_backend_tl { bibtex } },
    bib-backend / biblatex .code:n =
      {
        \tl_set:Nn \l__whu_bib_backend_tl { biblatex }
        \NewDocumentCommand \addbibresource { m }
          { \clist_gput_right:Nn \l__whu_bib_resource_clist {#1} }
      },
    bib-style .choice:,
    bib-style .value_required:n = true,
    bib-style / numerical   .code:n =
      {
        \tl_set:Nn  \l__whu_bib_gb_style_tl { numerical  }
        \tl_clear:N \l__whu_bib_style_tl
      },
    bib-style / author-year .code:n =
      {
        \tl_set:Nn  \l__whu_bib_gb_style_tl { author-year }
        \tl_clear:N \l__whu_bib_style_tl
      },
    bib-style / unknown     .code:n =
      {
        \tl_set_eq:NN \l__whu_bib_style_tl \l_keys_value_tl
        \tl_clear:N   \l__whu_bib_gb_style_tl
      },
    cite-style .tl_set:N = \l__whu_cite_style_tl,
    bib-resource .clist_set:N = \l__whu_bib_resource_clist
  }
%tag 设置参考文献格式默认值
% 本科默认使用顺序编码制，硕博默认使用著者-出版年制
\tl_if_eq:NnTF \g__whu_thesis_type_tl { bachelor }
  {
    \keys_set:nn { whu / style } { bib-style = numerical }
  }
  {
    \keys_set:nn { whu / style } { bib-style = author-year }
  }
%region 加载宏包
%tag bibtex 此时分两种情况：
% Case 1. bib-style = numerical or author-year，则调用 gbt7714 宏包，此宏包内部调用 natbib 宏包
% Case 2. otherwise，直接调用 natbib
\ctex_at_end_preamble:n
  {
    \tl_if_eq:NnT \l__whu_bib_backend_tl { bibtex }
      {
        \tl_if_empty:NTF \l__whu_bib_style_tl
          {
            \RequirePackage [ sort & compress ] { gbt7714 }
            \tl_if_eq:NnTF \g__whu_thesis_type_tl { bachelor }
              {
                \exp_args:No \bibliographystyle
                  { gbt7714- \l__whu_bib_gb_style_tl }
              }
              {
                \exp_args:No \bibliographystyle
                  { gbt7714-2005- \l__whu_bib_gb_style_tl }
              }
          }
          {
            \RequirePackage [ sort & compress ] { natbib }
            \exp_args:No \bibliographystyle
              { \l__whu_bib_style_tl }
          }
        \__whu_bibtex_setup:
      }
  }

%tag biblatex 调用 biblatex 宏包
% biblatex 会写入 begindocument/before 钩子，因此需在其之前通过
% env/document/begin 钩子载入 biblatex 宏包。注意这个
% 钩子仅适用于 \begin{document} 的写法，对于 \document 命令本身无效。
\__whu_gadd_ltxhook:nn { env/document/begin }
  {
    \tl_if_eq:NnT \l__whu_bib_backend_tl { biblatex }
      {
        \__whu_biblatex_pre_setup:
        \RequirePackage { biblatex }
        \__whu_biblatex_post_setup:
      }
  }
%endregion

%tag bibtex相关设置
\cs_new_protected:Npn \__whu_bibtex_setup:
  {
    \tl_if_eq:NnTF \l__whu_bib_gb_style_tl { numerical }
      {
        \exp_args:NNx \DeclareRobustCommand \parencite
          { \exp_args:No \exp_not:o { \cs:w cite ~ \cs_end: } }
        \exp_args:Nc \ctex_patch_cmd:Nnn { parencite ~ }
          { \begingroup }
          { \begingroup \bibstyle@numbers }
      }
      { \cs_set_eq:NN \parencite \cite }
    % 设置引用格式
    \tl_if_empty:NF \l__whu_cite_style_tl
      { \exp_args:NV \citestyle \l__whu_cite_style_tl }
    % 使用 \textendash 作为数字间的连接号
    \ctex_patch_cmd:Nnn \NAT@citexnum
      { - \NAT@penalty }
      { \textendash \NAT@penalty }
    \cs_set:Npn \bibsection { \__whu_chapter:V \bibname }
    % 让 bibtex 的接口与 biblatex 保持一致
    \NewDocumentCommand \printbibliography { o }
      {
        \exp_args:NV \bibliography \l__whu_bib_resource_clist
        \IfValueT {##1}
          { \__whu_warning:nn { invalid-option-in-bibtex } {##1} }
      }
    % 行距与字号
    \setlength{\bibsep}{0pt}
    \renewcommand{\bibfont}{\zihao{-4}\linespread{1.625}\selectfont}
  }
\__whu_msg_new:nn { invalid-option-in-bibtex }
  { Option(s)~ "#1"~ are~ invalid~ in~ BibTeX. }
%tag biblatex相关设置
\cs_new_protected:Npn \__whu_biblatex_pre_setup:
  {
    \cs_undefine:N \addbibresource
    \clist_new:N \l__whu_biblatex_options_clist
    \clist_put_right:Nn \l__whu_biblatex_options_clist { backend = biber }
    \clist_put_right:Nx \l__whu_biblatex_options_clist % 参考文献样式
      {
        style =
        \tl_if_empty:NTF \l__whu_bib_style_tl
          {
            \str_if_eq:VnTF \g__whu_thesis_type_tl { bachelor }
              {
                \str_if_eq:VnTF \l__whu_bib_gb_style_tl { numerical }
                  { gb7714-2015 } { gb7714-2015ay }
              }
              {
                \str_if_eq:VnTF \l__whu_bib_gb_style_tl { numerical }
                  { gb7714-2005 } { gb7714-2005ay }
              }
          }
          { \l__whu_bib_style_tl }
      }
    \tl_if_empty:NF \l__whu_cite_style_tl % 引用样式
      {
        \clist_put_right:Nx \l__whu_biblatex_options_clist
          { citestyle = \l__whu_cite_style_tl }
      }
    \exp_args:NV \PassOptionsToPackage \l__whu_biblatex_options_clist
      { biblatex }
  }
\cs_new_protected:Npn \__whu_biblatex_post_setup:
  {
    \clist_map_function:NN \l__whu_bib_resource_clist \addbibresource
    \__whu_biblatex_allow_url_break:
    \__whu_biblatex_use_en_dash:
    \defbibheading { bibliography } [ \bibname ] { \__whu_chapter:n {##1} }
    \setlength{\bibitemsep}{0pt}
    \renewcommand{\bibfont}{\zihao{-4}\linespread{1.625}\selectfont}
  }
% biblatex 下允许 URL 在字母、数字和一些特殊符号处断行
\cs_new:Npn \__whu_biblatex_allow_url_break:
  {
    \int_set_eq:NN \c@biburlucpenalty  \c_one_int
    \int_set_eq:NN \c@biburlnumpenalty \c_one_int
    \int_set_eq:NN \c@biburllcpenalty  \c_one_int
  }
% 使用 \textendash 作为数字间的连接符
\cs_new:Npn \__whu_biblatex_use_en_dash:
  {
    \DefineBibliographyExtras { english }
      {
        \cs_set_nopar:Npn \bibrangedash
          { \textendash \penalty \hyphenpenalty }
      }
    \DefineBibliographyExtras { russian }
      {
        \cs_set_nopar:Npn \bibrangedash
          { \textendash \penalty \hyphenpenalty }
      }
  }
%endregion 参考文献

%tag full-width stop
\keys_define:nn { whu / style }
  {
    fullwidth-stop .choice:,
    fullwidth-stop .value_required:n = true,
    fullwidth-stop / catcode .code:n =
      { \__whu_set_fullwidth_stop_catcode: },
    fullwidth-stop / mapping .code:n =
      {
        \sys_if_engine_xetex:TF
          {
            \clist_gset:Nn \g__xeCJK_default_features_clist
              { Mapping = fullwidth-stop }
          }
          {
            \sys_if_engine_luatex:T
              {
                \__whu_warning:n { mapping-not-available }
                \__whu_set_fullwidth_stop_catcode:
              }
          }
      },
    fullwidth-stop / false .code:n = { }
  }
\__whu_msg_new:nn { mapping-not-available }
  {
    Option~ "fullwidth-stop = mapping"~ is~ not~ available~ in~ LuaTeX. \\
    "fullwidth-stop = catcode"~ will~ be~ set~ instead.
  }
\cs_new:Npn \__whu_set_fullwidth_stop_catcode:
  {
    \char_set_active_eq:NN ^^^^3002 \c__whu_fwid_full_stop_tl
    \char_set_catcode_active:N ^^^^3002
    \clist_map_inline:nn
      { \c__whu_orig_decl_text_tl, \c__whu_auth_decl_text_tl }
      { \tl_set_rescan:Nno ##1 { } {##1} }
  }

\endinput