Biblatex/Biber: Comma before "in" after title

Question

I want to achieve something like this:

Stachelhaus, Thomas: „Ist er noch wer, wenn er nicht mehr er ist?“ – Identität und Identitätsverlust in Franz Kafkas ‚Die Verwandlung‘ und Paul Austers ‚Stadt aus Glas‘, in: Schlicht, Corinna (Hrsg.): Identität. Oberhausen: Verlag Karl Maria Laufen 2010 (Autoren im Kontext – Duisburger Studienbögen Bd. 11), S. 122–136.

This is where I am:

Stachelhaus, Thomas: "Ist er noch wer, wenn er nicht mehr er ist?" – Identität und Identitätsverlus in Franz Kafkas ’Die Verwandlung’ und Paul Austers ’Stadt aus Glas’. In: Schlicht, Corinna (Hrsg.): Identität. Bd. 11. Oberhausen: Verlag Karl Maria Laufen 2010 (Autoren im Kontext – Duisburger Studienbögen) Bd. 11, S. 122–136.

I do not want a comma after the title in general but only if there is a "in:" (which should be lower case also) and so far I got that for the types article and InCollection.

This is my exemplary bib:

@InCollection{Stachelhaus.2010,
  Title                    = {{\dq}Ist er noch wer, wenn er nicht mehr er ist?{\dq} -- Identit{\"a}t und Identit{\"a}tsverlus in Franz Kafkas 'Die Verwandlung' und Paul Austers 'Stadt aus Glas'},
  Author                   = {Stachelhaus, Thomas},
  Booktitle                = {Identit{\"a}t},
  Publisher                = {Verlag Karl Maria Laufen},
  Year                     = {2010},
  Address                  = {Oberhausen},
  Editor                   = {Schlicht, Corinna},
  Pages                    = {122--136},
  Series                   = {Autoren im Kontext -- Duisburger Studienb{\"o}gen},
  Volume                   = {11},
}

I hope an MWE isn't need here and if it's important I'm using the style ibid-verbose.

Thanks so much in advance for your help :-)

P.S.: I know that there are some problems with the volume which I hope will be resolved here: Biblatex/Biber: Put series, volume and number at the end

Answer 1

Because of the way biblatex's punctuation tracker works, we can - with a bit of cheating - avoid patching the drivers.

\renewbibmacro*{in:}{%
  \setunit{\addcomma\space}%
  \printtext{%
    \bibstring{in}\intitlepunct}}

We simply replace the punctuation currently in the punctuation buffer with \addcomma\space, the buffer is used immediately afterwards, because a \printtext directive follows.

MWE

\documentclass[ngerman]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{babel}
\usepackage{csquotes}
\usepackage[backend=biber,style=authortitle]{biblatex}
\usepackage{microtype}

\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@InCollection{Stachelhaus.2010,
  title     = {\enquote{Ist er noch wer, wenn er nicht mehr er ist?} -- Identit{\"a}t und Identit{\"a}tsverlus in Franz Kafkas \enquote{Die Verwandlung} und Paul Austers \enquote{Stadt aus Glas}},
  author    = {Stachelhaus, Thomas},
  booktitle = {Identit{\"a}t},
  publisher = {Verlag Karl Maria Laufen},
  year      = {2010},
  address   = {Oberhausen},
  editor    = {Schlicht, Corinna},
  pages     = {122--136},
  series    = {Autoren im Kontext -- Duisburger Studienb{\"o}gen},
  number    = {11},
}
\end{filecontents*}
\addbibresource{\jobname.bib}

\renewbibmacro*{in:}{%
  \setunit{\addcomma\space}%
  \printtext{%
    \bibstring{in}\intitlepunct}}

\begin{document}

\nocite{*}

\printbibliography
\end{document} 

Note that in the MWE I have changed your hand-drawn quotation marks to csquotes' \enquote and ended the abuse of the volume field, where number should be used.

Answer 2

Here is a small patch for the InCollectiondriver. You will probably have to do thesame for all drivers that use the in: macro:

\documentclass[ngerman]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{babel}
\usepackage{csquotes}
\usepackage[backend=biber,style=authortitle]{biblatex}
\usepackage{microtype}

\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
@InCollection{Stachelhaus.2010,
  Title = {{\dq}Ist er noch wer, wenn er nicht mehr er ist?{\dq} -- Identit{\"a}t und Identit{\"a}tsverlus in Franz Kafkas 'Die Verwandlung' und Paul Austers 'Stadt aus Glas'},
  Author = {Stachelhaus, Thomas},
  Booktitle = {Identit{\"a}t},
  Publisher = {Verlag Karl Maria Laufen},
  Year = {2010},
  Address = {Oberhausen},
  Editor = {Schlicht, Corinna},
  Pages = {122--136},
  Series = {Autoren im Kontext -- Duisburger Studienb{\"o}gen},
  Volume = {11},
}
\end{filecontents}
\addbibresource{\jobname.bib}

\usepackage{xpatch}

\xpatchbibdriver{incollection}{%
  \newunit\newblock
  \usebibmacro{in:}}{%
  \setunit{\addcomma\space}\newblock
  \usebibmacro{in:}}{}{}

\begin{document}

\nocite{*}

\printbibliography
\end{document} 

Answer 3

Still a very useful answer from @moewe. I now wanted to get from:

Babka, Anna: Frauen.Schreiben – Jelinek-Lesen. Aspekte einer allo-écriture (féminine) in Texten Elfriede Jelineks (nach Hélène Cixous, Luce Irigaray und Julia Kristeva), in: Julian Müller und Liu Wei (Hrsg.): Frauen.Schreiben. Wien: Praesens Verlag 2014 (Österreichische Literatur in China, Bd. 2), S. 17–52.

to

Babka, Anna: Frauen.Schreiben – Jelinek-Lesen. Aspekte einer allo-écriture (féminine) in Texten Elfriede Jelineks (nach Hélène Cixous, Luce Irigaray und Julia Kristeva), in: Frauen.Schreiben, hrsg.v. Liu Wei und Julian Müller. Wien: Praesens Verlag 2014 (Österreichische Literatur in China, Bd. 2), S. 17–52.

and achieved this using this code:

\renewbibmacro*{byeditor+others}{%
  \setunit{\addcomma\space}% <---- this is new ...
  \ifnameundef{editor}
    {}
    {\usebibmacro{byeditor+othersstrg}%
     \setunit{\addspace}%
     \printnames[byeditor]{editor}%
     \clearname{editor}%
     \newunit}%
  \usebibmacro{byeditorx}%
  \usebibmacro{bytranslator+others}}%}% <---- and this

\DefineBibliographyStrings{german}{% 
  byeditor={hrsg\adddot\thinspace v\adddotspace}, 
  } 

\renewbibmacro*{in:}{%
  \setunit{\addcomma\space}%
  \printtext{%
    \bibstring{in}\intitlepunct}}

Just in case somone wants to achieve something similar (and wants to ovrride "ed. by", DefineBibliographyStrings line).

In case someone is wondering, this is the coressponding bib entry:

@InCollection{Babka2014,
  author    = {Babka, Anna},
  title     = {Frauen.Schreiben -- Jelinek-Lesen. Aspekte einer allo-\'{e}criture (f\'{e}minine) in Texten Elfriede Jelineks (nach H\'{e}l\`{e}ne Cixous, Luce Irigaray und Julia Kristeva)},
  booktitle = {Frauen.Schreiben},
  publisher = {Praesens Verlag},
  year      = {2014},
  editor    = {Liu Wei and Julian Müller},
  series    = {Österreichische Literatur in China, Bd. 2},
  pages     = {17--52},
  address   = {Wien},
}