Hyperlinked footnote and footcite markers automatically separated by raised commas

Question

The posting Incompatibility between footmisc-option multiple and hyperref contains a solution to having consecutive footnote markers hyper-linked and automatically separated by raised commas.

How to have the same when there is a sequence of footnotes and footcites, such as

Text\footnote{First footnote}\footcite{firstcitation}\footnote{citation}

This is the solution on the linked page:

\documentclass{article}
\usepackage{hyperref}

\let\oldFootnote\footnote
\newcommand\nextToken\relax

\renewcommand\footnote[1]{%
    \oldFootnote{#1}\futurelet\nextToken\isFootnote}

\newcommand\isFootnote{%
    \ifx\footnote\nextToken\textsuperscript{,}\fi}

\textheight=3cm
\begin{document}

Text\footnote{First footnote}\footnote{Second footnote}\footnote{Third footnote} Text\footnote{Fourth footnote} Text

\end{document} 

Answer 1

The solution to your query involves making two additions to @Holle's code you quoted in your posting.

• First, modify the \isFootnote macro to test whether the very next token is either \footnote or \footcite (and, if the test is "true", to instruct LaTeX to insert \textsuperscript{,}).

• Second, renew the \footcite macro in the same way the \footnote macro has been renewed.

\documentclass{article}
\usepackage{biblatex} % for '\footcite' macro
\usepackage[colorlinks]{hyperref}

\let\oldFootnote\footnote
\let\oldFootcite\footcite
\newcommand\nextToken\relax   
\renewcommand\footnote[1]{%
    \oldFootnote{#1}\futurelet\nextToken\isFootnoteOrFootcite}
\renewcommand\footcite[1]{%
    \oldFootcite{#1}\futurelet\nextToken\isFootnoteOrFootcite}
\newcommand\isFootnoteOrFootcite{%
    \ifx\footnote\nextToken\textsuperscript{,}%
    \else\ifx\footcite\nextToken\textsuperscript{,}\fi%
    \fi}

\setlength\textheight{3cm} % just for this example
\begin{document}

Text.\footnote{First footnote}\footcite{An entry to be cited}\footcite{Another entry to be cited}\footnote{Second footnote}  
More text

\end{document}