BibTeX, biblatex and biber ⇒ biblatex | Underlining Fields in Bibliography

[dsdrake]

Hi,

A report I'm writing requires that certain bibliography fields (e.g. book titles) are underlined. I know that some people frown on this, but in this case I have no choice - these are specific requirements for submission.

I first tried this:

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\DeclareFieldFormat[book]{title}{\underline{#1}}

This worked, but I don't need to repeat here the problems with \underline - it encloses everything in a horizontal box, no wrapping allowed, so long book titles don't work right.

I then tried \uline from ulem, this solves the wrapping/layout problem, but unfortunately the text is double-underlined. Why is this, and how can I avoid it? I would like a single underline only.

Thanks.

Minimal example:

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\documentclass[a4paper,12pt]{book}
\usepackage[normalem]{ulem}
\usepackage[style=authoryear,abbreviate=true,maxnames=2]{biblatex}
\bibliography{refs}
\DeclareFieldFormat[book]{title}{\uline{#1}}

\begin{document}

\textcite{foo}

\printbibliography

\end{document}

and refs.bib:

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@book{foo,
	title = "Book Title",
	author = "Book Author",
	year = "2011",
}