Colon (:) instead of comma when using article entry type

Question

I'm currently having a problem with Biblatex delimiter after the author. I want to have <author>: <title> instead of <author>, <title>. With the following commands it works, except when using the entry type article in my .bib-file.

\usepackage[backend=biber, style=ieee, citestyle=numeric-comp, dashed=false]{biblatex}
\renewcommand*{\labelnamepunct}{\addcolon\addspace}

Has anyone faced a similar problem or can help me with this problem?

Thanks in advance

Answer 1

The ieee style uses a simple \setunit. This should work:

\usepackage{xpatch}
\xpatchbibdriver{article}{\newunit
  \usebibmacro{title}}{\addcolon\space
  \usebibmacro{title}}{}{}

Answer 2

The comma is not added by \lablenamepunct (which btw is deprecated), but by the \newunit which uses \newunitpunct. Unfortunately this is uses in multiple places and therefore the redefinition can not be made globally but needs to be inside a group to not effect all other occurrences:

\documentclass{article}

\usepackage[backend=biber, style=ieee, citestyle=numeric-comp, dashed=false]{biblatex}

\makeatletter
% New bibliography drivers, using the required order of fields. These
% are mainly copied from standard.bbx then modified.
\DeclareBibliographyDriver{article}{%
  \usebibmacro{bibindex}%
  \usebibmacro{begentry}%
  \usebibmacro{author/translator+others}%
  {\renewcommand{\newunitpunct}{\addcolon\space}\newunit}
  \usebibmacro{title}%
  \newunit
  \printlist{language}%
  \newunit\newblock
  \usebibmacro{byauthor}%
  \newunit\newblock
  \usebibmacro{bytranslator+others}%
  \newunit\newblock
  \printfield{version}%
  \newunit\newblock
  \usebibmacro{journal+issuetitle}%
  \newunit
  \usebibmacro{byeditor+others}%
  \newunit
  \usebibmacro{pages}%
  \newunit
  \usebibmacro{issue+date}%
  \newunit
  \printfield{note}%
  \newunit\newblock
  \iftoggle{bbx:isbn}
    {\printfield{issn}}
    {}%
  \newunit\newblock
  \usebibmacro{doi+eprint+url}%
  \newunit\newblock
  \usebibmacro{addendum+pubstate}%
  \setunit{\bibpagerefpunct}\newblock
  \usebibmacro{pageref}%
  \newunit\newblock
  \iftoggle{bbx:related}
    {\usebibmacro{related:init}%
     \usebibmacro{related}}
    {}%
  \usebibmacro{finentry}}

\makeatother

\addbibresource{test.bib}

\begin{document}

test

\cite{test}

\printbibliography

\end{document}