Bug when enquote starts with duplicated character in section with Hyperref. #70
Description
I found a really weird behavior:
If I "enquote" (csquotes) something that starts with two identical characters in a section header AND use hyperref I get the error:
! Argument of \csq@pdf@quote@ii has an extra }.
<inserted text>
\par
l.19 \section{Foo Bar \enquote{AA}}
When the "double" character is not at the start everything is fine.
MWE:
\documentclass{article}
\usepackage{csquotes}
%Hyperref
\usepackage{hyperref}
\begin{document}
\section{Foo Bar \enquote{AA}}
\end{document}See here for discussion.
There is also an explanation from another user.
I quote his comment here:
It's a bug in csquotes: if I modify two definitions to have \if*#1 instead of \if#1*, the run is successful.
The \if#1* test is obviously wrong: with \tracingmacros=1 I get
\enquote #1->\if #1*\relax \expandafter \@firstoftwo \else \expandafter \@secon
doftwo \fi {\csq@pdf@quote@ii } {\csq@pdf@quote@i {#1}}
#1<-AA
but clearly the macro is supposed to check if there's a leading *.
\usepackage{csquotes}
%Hyperref
\usepackage{hyperref}
% fix the bugs
\makeatletter
\long\def\csq@pdf@quote#1{%
\if*#1\relax
\expandafter\@firstoftwo
\else
\expandafter\@secondoftwo
\fi
{\csq@pdf@quote@ii}
{\csq@pdf@quote@i{#1}}}
\long\def\csq@pdf@fquote#1{%
\if*#1\relax
\expandafter\@firstoftwo
\else
\expandafter\@secondoftwo
\fi
{\expandafter\csq@pdf@quote@ii\@gobble}
{\csq@pdf@quote@i}}
\makeatother
\begin{document}
\section{Foo Bar \enquote{AA}}
\end{document}