Two \cite commands with different colored links?

Question

I'm writing a grant proposal (whee) and I was given a suggestion to make two different citations with two different colors. So it would be something like:

In the PI's prior work~\citeme{mycoolpaper} he proved a cool theorem; 
subsequent follow-up work by others~\cite{otherpaper} provided empirical 
validation on several benchmark data sets.

In the formatting \citeme{} would be colored red, and \cite{} blue, using \hypersetup{} or something like that.

I know that one can do this with \href, but I wasn't sure if you could specify a custom \cite command.

I feel like some combination of the cite and hyperref and maybe biblatex would do it?

Answer 1

The following example defines \citeme and changes the citecolor inside a group. Care is taken to support the optional argument of \cite:

\documentclass{article}
\usepackage[colorlinks]{hyperref}

\makeatletter
\newcommand*{\citeme}{%
  \begingroup
  \hypersetup{citecolor=red}%
  \@ifnextchar[\citeme@opt\citeme@
}
\def\citeme@opt[#1]#2{%
  \cite[{#1}]{#2}%
  \endgroup
}
\newcommand*{\citeme@}[1]{%
  \cite{#1}%
  \endgroup
}
\makeatother

\begin{document}

In the PI's prior work~\citeme{mycoolpaper} he proved a cool theorem;
subsequent follow-up work by others~\cite{otherpaper} provided empirical
validation on several benchmark data sets.

\begin{thebibliography}{9}
\bibitem{mycoolpaper}
  Me: Cool Title.

\bibitem{otherpaper}
  Someone else: Hot Title.

\end{thebibliography}
\end{document}