I am trying to edit a bibliography style file (bst) such that it only prints the language part if the item is not in English. For example I want to have "(in German)" if the item is not English but I do not have any idea how to modify this part to achieve it:

FUNCTION {format.language}
{ language "language" bibinfo.check
  duplicate$ empty$ 'skip$
     "(in " swap$ * ")" *
  } if$
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  • Please add a minimal working example (MWE) that illustrates your problem. It will be much easier for us to reproduce your situation and find out what the issue is when we see compilable code, starting with \documentclass{...} and ending with \end{document}. – Marco Daniel Apr 22 '13 at 16:05

you need an entry language in the list of entries (at the beginning of the bst-file) and then:

FUNCTION {format.language}
{ language empty$
    { "" }
    { "English" language = % 0 is on stack if _not_ english
      { }
      { ", in German" * }

If your style file has no entries for the language then you have to add something like:

{ output.bibitem
  author empty$


  format.date "year" output.check
  note output

My example output looks like

enter image description here

with the following bib data:

  title = {Entwicklung haptischer Geräte},
  publisher = {Springer},
  year = {2009},
  language = {English},
  editor = {Thorsten A. Kern},
  isbn = {978-3540876434},
  doi = {10.1007/978-3-540-87644-1},
  keywords = {key:Haptik,key:Technik,key:PDF},
  subtitle = {Ein Einstieg für Ingenieure}

  title = {Introduciton to robust estimation and hypothesis testing},
  publisher = {Elsevie},
  year = {2005},
  author = {Wilcox, R. R.},
  address = {Burlington, MA},
  edition = {2}
  • Thanks @Herbert. I managed to fix it using your help but I think it should be { ", in " language * } instead of { ", in German" * } in the bst file or with my style { "(in " language * ")" * } – Reza Apr 23 '13 at 1:49
  • @MohammadrezaJooyandeh: true, I thought you mean always German – user2478 Apr 23 '13 at 6:41

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