acronym \acresetall & cleveref: multiply defined labels

Question

I'm using the acronym package to expand acronyms and I'm also using the cleveref package. I would like to have acronyms expanded once per chapter. For instance in the following code, both acronyms should produce the expansion:

\documentclass{report}
\usepackage{acronym}
\usepackage{cleveref}

\acrodef{ac}{Acronym}

\begin{document}
\chapter{one}

\ac{ac} 

\acresetall
\chapter{two}

\ac{ac}
\end{document}

According to the acronym manual I found that calling \acresetall before each chapter produces the desired result but I get warning about duplicate labels (somehow a conflict with cleveref). Is there another way to get the desired result or avoid the warning?

Answer 1

You can try this:

\documentclass{report}
\usepackage{acronym}
\usepackage{cleveref}
\makeatletter
\renewcommand*\@verridelabel[1]{%
  \@bsphack
  \protected@write\@auxout{}{\string\undonewlabel{#1}}%
  \protected@write\@auxout{}{\string\undonewlabel{#1@cref}}%Added for cleverref
  \label{#1}%
  \@overriddenmessage rs{#1}%
  \@esphack
}%
\makeatletter
\acrodef{ac}{Acronym}

\begin{document}
\chapter{one}

\ac{ac}

\acresetall
\chapter{two}

\ac{ac}
\end{document}

Answer 2

Package cleveref extends \label{<name>} to add \label{<name>@cref}. And package acronym sets a label \label{acro:ac} twice, in the first and second chapter. However it undoes the first label before setting the second, from the .aux file:

\undonewlabel{acro:ac}
\newlabel{acro:ac}{{1}{1}}

The patch below makes the same for the added label by cleveref:

\documentclass{report}
\usepackage{acronym}
\usepackage{cleveref}

\makeatletter
\newcommand*{\org@overidelabel}{}
\let\org@overridelabel\@verridelabel
\renewcommand*{\@verridelabel}[1]{%
  \@bsphack
  \protected@write\@auxout{}{\string\undonewlabel{#1@cref}}%
  \org@overridelabel{#1}%
  \@esphack
}
\makeatother

\acrodef{ac}{Acronym}

\begin{document}
\chapter{one}

\ac{ac} 

\acresetall
\chapter{two}

\ac{ac}
\end{document}

The .aux file:

relax 
\reset@newl@bel
\newacro{ac}[ac]{Acronym}
\@writefile{toc}{\contentsline {chapter}{\numberline {1}one}{1}}
\@writefile{lof}{\addvspace {10\p@ }}
\@writefile{lot}{\addvspace {10\p@ }}
\undonewlabel{acro:ac@cref}
\undonewlabel{acro:ac}
\newlabel{acro:ac}{{1}{1}}
\newlabel{acro:ac@cref}{{[chapter][1][]1}{1}}
\acronymused{ac}
\@writefile{toc}{\contentsline {chapter}{\numberline {2}two}{2}}
\@writefile{lof}{\addvspace {10\p@ }}
\@writefile{lot}{\addvspace {10\p@ }}
\undonewlabel{acro:ac@cref}
\undonewlabel{acro:ac}
\newlabel{acro:ac}{{2}{2}}
\newlabel{acro:ac@cref}{{[chapter][2][]2}{2}}
\acronymused{ac}