How to make report title quoted instead of italicized with biblatex

Question

As the title says, I want to have quoted title for reports, just like for articles.

I tried doing this (suggested here):

\DeclareFieldFormat[%
  article,inproceedings,misc,online,proceedings,techreport,report
]{title}{\mkbibquote{#1}}

which did make titles of @misc and @online quoted, but didn't change anything for @report or @techreport.

How can I make this work for reports? Is the title field called something else for reports?

For reference, here's my preamble:

\usepackage[
  backend=biber,
  sorting=none,
  giveninits=true,
  useprefix=true,
  backref=true,
  backrefstyle=three,
  style=numeric-comp
]{biblatex}

Answer 1

You are running into trouble with trailing whitespace in the list.

\DeclareFieldFormat[%
  article,inproceedings,misc,online,proceedings,techreport,report
]{title}{\mkbibquote{#1}}

doesn't work because the last list item is report with a space and not report.

biblatex.def uses the form

\DeclareFieldFormat
  [article,inproceedings,misc,online,proceedings,techreport,report]
  {title}{\mkbibquote{#1}}

which avoids trailing spaces. (Note that after a comma, the space is optional and will be ignored if present. That is not the case at the end of the list, however.)

But these lines can be shortened significantly, since some types mentioned already have \mkbibquote{#1} set up and @techreport is an alias for @report (this alias is set up in a way that means that biblatex internally does not know the type @techreport)

\DeclareFieldFormat[misc,online,proceedings,report]{title}{\mkbibquote{#1}}

MWE

\documentclass[british]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{babel}
\usepackage{csquotes}
\usepackage[
  backend=biber,
  style=numeric-comp,
  sorting=none,
  giveninits=true,
  useprefix=true,
  backref=true,
  backrefstyle=three,
]{biblatex}
\DeclareFieldFormat[misc,online,proceedings,report]{title}{\mkbibquote{#1}}
\addbibresource{biblatex-examples.bib}
\begin{document}
\autocite{chiu,padhye}
\printbibliography
\end{document}