cover.sty

\ProvidesExplPackage{profile/cover}{2021-09-04}{0.1}{NJU Thesis Undergraduate cover design} 

% 封面下划线
\cs_new:Npn \cover_underline:nn #1 #2 {
  \uline{\makebox[#1]{#2}}
}

% 封面表格边框
\cs_new:Npn \coverbox:n #1 {
  \makebox[4.2em][s]{#1}
}

% 封面标题
\tl_new:N \cover_oneline_title
\tl_set:Nn \cover_oneline_title {
  \begin{tabular}{p{4.2em}c}
    \coverbox:n {院\hfill 系}
    & \cover_underline:nn {250pt}{\songti\Department}\\
    \coverbox:n {专\hfill 业}
    & \cover_underline:nn {250pt}{\songti\Major}\\

    \coverbox:n {题\hfill 目}
    & \cover_underline:nn {250pt}{\textbf{\songti\TitleA}} \\

    \int_compare:nNnTF { \TitleLength } = { 2 }  { 
      \coverbox:n {\hfill}
      & \cover_underline:nn {250pt}{\textbf{\songti\TitleB}} \\
    }{}
    
    \int_compare:nNnTF { \TitleLength } = { 3 }  { 
      \coverbox:n {\hfill}
      & \cover_underline:nn {250pt}{\textbf{\songti\TitleB}} \\
      \coverbox:n {\hfill}
      & \cover_underline:nn {250pt}{\textbf{\songti\TitleC}} \\
    }{}
  \end{tabular}\\

  \begin{tabular}{p{4.2em}cp{4.2em}c}
    \coverbox:n {年\hfill 级}
    & \cover_underline:nn {90pt}{\Grade}
    & \coverbox:n {学\hfill 号}
    & \cover_underline:nn {90pt}{\songti\StudentID}\\
  \end{tabular}\\
  
  \begin{tabular}{p{4.2em}c}
    \coverbox:n {学\hfill 生\hfill 姓\hfill 名}
    & \cover_underline:nn {250pt}{\StudentName}
  \end{tabular}\\
  \begin{tabular}{p{4.2em}cp{4.2em}c}
    \coverbox:n {导\hfill 师}
    & \cover_underline:nn {90pt}{\Mentor}
    & \coverbox:n {职\hfill 称}
    & \cover_underline:nn {90pt}{\MentorTitle}\\
  \end{tabular}\\
%   % 第二导师
%   \ifnjut@title@twosupervisors
%     \begin{tabular}{p{4.2em}cp{4.2em}c}
%       \coverbox:n {\njut@cap@cover@secondsupervisor}
%       & \njutunderline[90pt]{\songti\njut@value@secondsupervisor}
%       & \coverbox:n {\njut@cap@cover@secondsupervisortitle}
%       & \njutunderline[90pt]{\songti\njut@value@secondsupervisortitle}\\
%     \end{tabular}
%   \fi
  \begin{tabular}{p{4.2em}c}
    \coverbox:n {提\hfill 交\hfill 日\hfill 期}
    & \cover_underline:nn {250pt}{\SubmitDate}\\
  \end{tabular}
}

% 判断类型