Biblatex: Id. in lieu of Ibid.

Question

I have what I thought would be a very simple question, but has turned out to be much more difficult.

Using biblatex and the verbose-inote style, I would like to redefine for footcite Ibid as Id. and print an ibidem citation as follows: "Id. at #" where # is the page number.

Any suggestions greatly appreciated!

Thanks!

\documentclass{article}
\usepackage{geometry} 
\geometry{letterpaper, margin=1in}
\usepackage{setspace}
\usepackage[style=verbose-inote,backend=bibtex]{biblatex}
\bibliography{nbib.bib}


\begin{document}

This is a test.\footcite[1]{test}

\end{document}

Answer 1

Changing "ibid." to "id." is as easy as

\DefineBibliographyStrings{english}{
  ibidem = {id\adddot},
}

(where you of course replace english by the language you are actually using).

---

For the "at" only for pages after "id." we can do the following

\NewBibliographyString{at}
\DefineBibliographyStrings{english}{
  ibidem = {id\adddot},
  at = {at},
}

and then

\DeclareFieldFormat{postnote}{%
  \ifthenelse{\ifciteibid\AND\NOT\iffirstonpage\AND\ifpages{#1}}
    {\bibstring{at}%
     \addspace}
    {}%
  #1}

\renewbibmacro*{footcite:ibid}{%
  \printtext[bibhyperlink]{\bibstring[\mkibid]{ibidem}}%
  \iffieldpages{postnote}{\printunit{\addspace}}{}%
  \ifloccit
    {\global\toggletrue{cbx:loccit}}
    {}}

This tries to make sure no spurious punctuation occurs.

MWE

\documentclass{article}
\usepackage[style=verbose-inote,backend=bibtex]{biblatex}
\bibliography{biblatex-examples.bib}

\NewBibliographyString{at}
\DefineBibliographyStrings{english}{
  ibidem = {id\adddot},
  at = {at},
}

\DeclareFieldFormat{postnote}{%
  \ifthenelse{\ifciteibid\AND\NOT\iffirstonpage\AND\ifpages{#1}}
    {\bibstring{at}%
     \addspace}
    {}%
  #1}

\renewbibmacro*{footcite:ibid}{%
  \printtext[bibhyperlink]{\bibstring[\mkibid]{ibidem}}%
  \iffieldpages{postnote}{\printunit{\addspace}}{}%
  \ifloccit
    {\global\toggletrue{cbx:loccit}}
    {}}

\begin{document}
This is a test.\footcite[1]{sigfridsson} Ewoud\footcite[1]{sigfridsson}. Ewoud\footcite[jeugd]{sigfridsson}.
\end{document}