Cfrgtkky

I am trying to change the word "in" for specific entries. In particular, I want that all types of sources should contain the "in" except unpublished and Proceedings. Furthermore I want to change the "in" into "Künftig in" for all inproceeding Elements.

Here is a short mwe

documentclass[12pt, bibliography=totocnumbered, listof=totoc]{scrartcl}

usepackage[T1]{fontenc}

usepackage[utf8]{inputenc}                              

usepackage{lmodern}

usepackage[ngerman]{babel}

usepackage{csquotes}





usepackage[backend=biber, style=ext-authoryear,

  maxbibnames=9, maxcitenames=3, uniquelist=false, uniquename=false,

  useprefix=true, giveninits=true, dashed=false

  doi=false,isbn=false,url=false,

  date=year]{biblatex}





renewbibmacro{in:}{%

  ifboolexpr{%

     test {ifentrytype{unpublished}}%

     or

     test {ifentrytype{proceedings}}%

  } 

  {}

  ifentrytype{inproceedings

  }

  {printtext{bibstring{Künftig in}intitlepunct}}

  {printtext{bibstring{in}intitlepunct}}%

}



usepackage{filecontents}

begin{filecontents}{jobname.bib}

@Article{Hansen2011,

  author  = {Hansen, Peter R. and Lunde, Asger and Nason, James M.},

  title   = {The Model Confidence Set},

  journal = {Econometrica},

  year    = {2011},

  volume  = {79},

  number  = {2},

  pages   = {453-497},

  url     = {https://EconPapers.repec.org/RePEc:ecm:emetrp:v:79:y:2011:i:2:p:453-497},

}



@InProceedings{Loeschel2018,

  author    = {Andreas Löschel and Benjamin Johannes Lutz and Shunsuke Managi},

  title     = {The impacts of the {EU} {ETS} on efficiency and economic performance {textendash} An empirical analyses for German manufacturing firms},

  booktitle = {Resource and Energy Economics},

  year      = {2018},

  month     = {mar},

  doi       = {10.1016/j.reseneeco.2018.03.001},

  journal   = {Resource and Energy Economics},

}



end{filecontents}

addbibresource{jobname.bib} 



begin{document}

textcite{Hansen2011} textcite{Loeschel2018}

printbibliography

end{document}

I tried to redefine

renewbibmacro{in:}{%

  ifboolexpr{%

     test {ifentrytype{unpublished}}%

     or

     test {ifentrytype{proceedings}}%

  } 

  {}

  ifentrytype{inproceedings

  }

  {printtext{bibstring{Künftig in}intitlepunct}}

  {printtext{bibstring{in}intitlepunct}}%

}

by adding this line here:

ifentrytype{inproceedings}

  {printtext{bibstring{Künftig in}intitlepunct}}

but that doesnt work.

In the comments it emerged that the idea behind the question was to cite an @article that is to appear in a particular journal, but that has no volume and page number yet.

In that case I would not abuse @incproceedings for something it was not meant for. Instead I would use pubstate as suggested in Biblatex: add "submitted to" or "to appear in" for some publications.

documentclass[ngerman]{article}

usepackage[T1]{fontenc}

usepackage[utf8]{inputenc}

usepackage{babel}

usepackage{csquotes}

usepackage[style=authoryear]{biblatex}

addbibresource{biblatex-examples.bib}



usepackage{filecontents}

begin{filecontents*}{jobname.bib}

@article{loeschel,

  author   = {Andreas Löschel and Benjamin Johannes Lutz and Shunsuke Managi},

  title    = {The impacts of the {EU} {ETS} on efficiency and economic performance},

  subtitle = {An empirical analyses for {German} manufacturing firms},

  pubstate = {toappearin},

  journal  = {Resource and Energy Economics},

  date     = {2018-03-23},

  doi      = {10.1016/j.reseneeco.2018.03.001},

}

end{filecontents*}

addbibresource{jobname.bib}



NewBibliographyString{toappearin}

NewBibliographyString{submittedto}

DefineBibliographyStrings{english}{%

  toappearin  = {to appear in},

  submittedto = {submitted to},

}

DefineBibliographyStrings{german}{%

  toappearin  = {künftig in},

}



renewbibmacro*{in:}{%

  ifboolexpr{not test {iffieldundef{pubstate}}

              and (test {iffieldequalstr{pubstate}{toappearin}}

                   or test{iffieldequalstr{pubstate}{submittedto}})}

    {printtext{%

       printfield{pubstate}intitlepunct}%

     clearfield{pubstate}}

    {printtext{%

       bibstring{in}intitlepunct}}}



begin{document}

cite{loeschel,sigfridsson}

printbibliography

end{document}