按標題將參考書目中的引文分組

Question

我正在寫一篇論文，其中多次引用了多年來在多個日期發行的同名報紙/期刊。我試圖按期刊名稱將這些參考文獻分組在一起，以便同一期刊的參考書目條目靠近在一起，並與其他期刊的其他條目分開。

我廣泛地瀏覽了 biblatex 文檔，我能找到的唯一相關資訊是bibnamesep和bibitemsep長度暫存器。這些似乎正是我所需要的 - 具有相同標題的期刊的 bibitem 應該比非同名期刊的 bibitem 更接近。這裡唯一的挑戰是 bibnamesep 似乎使用名稱部分和唯一性模板來按作者姓名（而不是按標題）將作品分組在一起。

這是我的 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 個@periodical條目 - 3 個來自《太陽報》，3 個來自《衛報》，3 個來自《年鑑》。它使用排序範本按期刊標題對條目進行排序，並將\bibitemsep和\bibnamesep分別設為 1pt 和 30pt。這是我無法上班的地方:

正如您在上圖中所看到的，參考文獻之間的間距均為 30pt，而我希望“The Almanac”bibitems 為 1pt，但將“The Almanac”與“The Guardian”分開為 30pt。

Answer 1

\bibnamesep僅適用於 中編碼的具有不同名稱的條目之間fullhash。如果您想將其變更為title，您可以嘗試（本地）重新定義設定分隔符號的相關內部巨集。

\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}