使用 biblatex 仅格式化 DOI

Question

我正在使用 biblatex，并希望将我的 DOI 打印出来（感谢doi=true）不同的颜色和字体在参考书目部分。

基本上，它们的格式与 URL 相同，在我看来它们相当大。我希望减小 DOI 的字体，并以较浅的颜色显示它们。

这是一个最小的工作示例：

\documentclass[a4paper]{article}

\usepackage{libertine}

\usepackage[T1]{fontenc}

\usepackage[utf8]{inputenc}

\usepackage[backend=biber,doi=true]{biblatex}
\addbibresource{mybib.bib}


\begin{document}

Hello \cite{Smith12}

\printbibliography[title={References}]

\end{document}

内容如下mybib.bib：

@article{Smith12,
    author    = {John Smith},
    title     = {A great article},
    journal   = {Journal of something},
    volume    = {1},
    number    = {1-3},
    pages     = {42--50},
    year      = {2012},
    doi       = {12.345/123456789},
}

注 1: 包libertine不是必需的，只是它使 URL 字体更大。

笔记2：我不想更改 URL 字体（这很容易），只想更改 DOI 颜色和字体。

Answer 1

您可以调整doi+eprint+url宏：

\documentclass[a4paper]{article}

\usepackage{libertine}

\usepackage[T1]{fontenc}

\usepackage[utf8]{inputenc}


\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@article{Smith12,
    author    = {John Smith},
    title     = {A great article},
    journal   = {Journal of something},
    volume    = {1},
    number    = {1-3},
    pages     = {42--50},
    year      = {2012},
    doi       = {12.345/123456789},
}

\end{filecontents*}

\usepackage{xcolor}
\usepackage[backend=biber,doi=true]{biblatex}
\addbibresource{\jobname.bib}

\renewbibmacro*{doi+eprint+url}{%
  \iftoggle{bbx:doi}
    {\color{red}\tiny\printfield{doi}}
    {}%
  \newunit\newblock
  \iftoggle{bbx:eprint}
    {\usebibmacro{eprint}}
    {}%
  \newunit\newblock
  \iftoggle{bbx:url}
    {\usebibmacro{url+urldate}}
    {}}


\begin{document}

Hello \cite{Smith12}

\printbibliography[title={References}]

\end{document}

---

编辑

感谢伟大的@moewe 的评论更改 doi 的字段格式更简单：

\documentclass[a4paper]{article}

\usepackage{libertine}

\usepackage[T1]{fontenc}

\usepackage[utf8]{inputenc}


\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@article{Smith12,
    author    = {John Smith},
    title     = {A great article},
    journal   = {Journal of something},
    volume    = {1},
    number    = {1-3},
    pages     = {42--50},
    year      = {2012},
    doi       = {12.345/123456789},
}

\end{filecontents*}

\usepackage{xcolor}
\usepackage[backend=biber,doi=true]{biblatex}
\addbibresource{\jobname.bib}

\DeclareFieldFormat{doi}{%
    \color{red}\tiny%
  \mkbibacro{DOI}\addcolon\space
  \ifhyperref
    {\href{https://doi.org/#1}{\nolinkurl{#1}}}
    {\nolinkurl{#1}}}

\begin{document}

Hello \cite{Smith12}

\printbibliography[title={References}]

\end{document}