按标题对参考书目中的引文进行分组

Question

我正在写一篇论文，其中多次引用了多年来在多个日期发行的同名报纸/期刊。我试图按期刊名称将这些参考文献分组，以便同一期刊的参考书目条目紧密相连，并与其他期刊的其他条目分开。

我仔细查阅了 biblatex 文档，能找到的唯一相关信息是bibnamesep和bibitemsep长度寄存器。它们似乎完全符合我的要求 - 具有相同标题的期刊的 bibitem 应该比不同的 bibitem 更接近。这里唯一的挑战是 bibnamesep 似乎使用名称部分和唯一性模板按作者姓名（而不是按标题）将作品分组。

这是我的 MWE：

\documentclass[12pt]{article}
\usepackage{lipsum}
\usepackage[T1]{fontenc} % Specify font encoding
\usepackage[utf8]{inputenc} % Specify encoding (for example, UTF-8)
\usepackage[dashed=false,sorting=nyt,style=verbose,labeldateparts=true,uniquelist=true,uniquename=true,singletitle=true]{biblatex}
% Preamble - Here you can load packages and define settings
\usepackage[english]{babel}

\begin{filecontents*}[overwrite]{mwe.bib}
  @periodical{TheSun:20220101,
    title = {The Sun},
    date  = {2022-01-01}
  }
  @periodical{TheTimes:20220601,
  title = {The Sun},
    date  = {2022-06-01}
  }
  @periodical{TheTimes:20220901,
  title = {The Sun},
    date  = {2022-09-01}
  }

  @periodical{TheGuardian:20210217,
    title = {The Guardian},
    date  = {2021-02-17}
  }
  @periodical{TheGuardian:20210311,
    title = {The Guardian},
    date  = {2021-03-11}
  }
  @periodical{TheGuardian:20210410,
    title = {The Guardian},
    date  = {2021-04-10}
  }

  @periodical{TheAlmanac:202302,
    title = {The Almanac},
    date  = {2023-02}
  }
  @periodical{TheAlmanac:202303,
    title = {The Almanac},
    date  = {2023-03}
  }
  @periodical{TheAlmanac:202304,
    title = {The Almanac},
    date  = {2023-04}
  }
\end{filecontents*}

\addbibresource{mwe.bib}

\DeclareSortingTemplate{TitleYear}{
  \sort{
    \field{title}
  }
  \sort{
    \field{sortyear}
    \field{year}
    \literal{9999}
  }
  \sort{
    \field{month}
  }
  \sort{
    \field{day}
  }
}

\begin{document}

\bibitemsep=1pt
\bibnamesep=30pt

\nocite{*}
\begin{refcontext}[sorting=TitleYear]
  \printbibliography
\end{refcontext}

\end{document}

它包含 9 个@periodical条目 - 《太阳报》3 个、《卫报》3 个、《年鉴》3 个。它使用排序模板按期刊标题对条目进行排序，并将\bibitemsep和\bibnamesep分别设置为 1pt 和 30pt。这是我无法工作的一点：

正如您在上图中所看到的，所有参考文献之间都有 30pt 的间隔，而我希望“The Almanac”两个条目之间有 1pt 的间隔，但“The Almanac”和“The Guardian”之间有 30pt 的间隔。

Answer 1

\bibnamesep仅适用于 中编码名称不同的条目fullhash。如果要将其更改为title，可以尝试（本地）重新定义设置分隔符的相关内部宏。

\documentclass[12pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage[
  style=verbose,
  sorting=nyt,
  dashed=false,
  labeldateparts=true,
  uniquelist=true,uniquename=true,
  singletitle=true,
]{biblatex}


\makeatletter
\def\blx@namesep@title{%
  \ifnum\c@instcount>\@ne
    \blx@imc@iffieldequals{title}\blx@prevtitle
      {}
      {\addvspace{\bibnamesep}}%
  \fi
  \global\let\blx@prevtitle\abx@field@title}

\newcommand*{\NamesepByTitle}{\let\blx@namesep\blx@namesep@title}
\makeatother


\DeclareSortingTemplate{TitleYear}{
  \sort{
    \field{title}
  }
  \sort{
    \field{sortyear}
    \field{year}
    \literal{9999}
  }
  \sort{
    \field{month}
  }
  \sort{
    \field{day}
  }
}

\begin{filecontents*}[overwrite]{\jobname.bib}
@periodical{TheSun:20220101,
  title = {The Sun},
  date  = {2022-01-01}
}
@periodical{TheTimes:20220601,
title = {The Sun},
  date  = {2022-06-01}
}
@periodical{TheTimes:20220901,
title = {The Sun},
  date  = {2022-09-01}
}

@periodical{TheGuardian:20210217,
  title = {The Guardian},
  date  = {2021-02-17}
}
@periodical{TheGuardian:20210311,
  title = {The Guardian},
  date  = {2021-03-11}
}
@periodical{TheGuardian:20210410,
  title = {The Guardian},
  date  = {2021-04-10}
}

@periodical{TheAlmanac:202302,
  title = {The Almanac},
  date  = {2023-02}
}
@periodical{TheAlmanac:202303,
  title = {The Almanac},
  date  = {2023-03}
}
@periodical{TheAlmanac:202304,
  title = {The Almanac},
  date  = {2023-04}
}
\end{filecontents*}
\addbibresource{\jobname.bib}

\begin{document}
\bibitemsep=1pt
\bibnamesep=30pt

\nocite{*}
\begin{refcontext}[sorting=TitleYear]
  \NamesepByTitle
  \printbibliography
\end{refcontext}

\end{document}