[Tex/LaTex] hyperref error : ! Argument of \@providesfile has an extra }

hyperreflualuatex

Using a solution to adjust spacing in my document with LuaLaTeX, I run into this cryptic error, as soon as I use \label{} in a math environment:

(c:/texlive/2016/texmf-dist/tex/generic/oberdiek/se-pdfdoc.def
! Argument of \@providesfile has an extra }.
<inserted text> 
\par 
l.51 ...dblpnct{\hspace{0.08334em}}: PDFDocEncoding]

I've run across a `}' that doesn't seem to match anything.
For example, `\def\a#1{...}' and `\a}' would produce
this error. If you simply proceed now, the `\par' that
I've just inserted will cause me to report a runaway
argument that might be the root of the problem. But if
your `}' was spurious, just type `2' and it will go away.

Runaway argument?
{se-pdfdoc.def}{\@firstoftwo {\@hspacer }}\def \reserved@b {\@hspace \ETC.
! Paragraph ended before \@providesfile was complete.
<to be read again> 
\par 
l.51 ...dblpnct{\hspace{0.08334em}}: PDFDocEncoding]

I suspect you've forgotten a `}', causing me to apply this
control sequence to too much text. How can we recover?
My plan is to forget the whole thing and hope for the best.

File: se-pdfdoc.def 2016/05/16 v1.11 stringenc\dblpnct {\protect \let \reserved@
d =*\def \par }: PDFDocEncoding
! Argument of \@providesfile has an extra }.
<inserted text> 
\par 
l.51 ...dblpnct{\hspace{0.08334em}}: PDFDocEncoding]

I've run across a `}' that doesn't seem to match anything.
For example, `\def\a#1{...}' and `\a}' would produce
this error. If you simply proceed now, the `\par' that
I've just inserted will cause me to report a runaway
argument that might be the root of the problem. But if
your `}' was spurious, just type `2' and it will go away.

Runaway argument?
{se-pdfdoc.def}{\@firstoftwo {\@hspacer }}\def \reserved@b {\@hspace \ETC.
! Paragraph ended before \@providesfile was complete.
<to be read again> 
\par 
l.51 ...dblpnct{\hspace{0.08334em}}: PDFDocEncoding]

I suspect you've forgotten a `}', causing me to apply this
control sequence to too much text. How can we recover?
My plan is to forget the whole thing and hope for the best.

) [1
Non-PDF special ignored!

MWE:

\documentclass{scrbook}

\usepackage[pdfencoding=auto,pdfpagelabels=true,psdextra]{hyperref}   % PROBLEMATIC PACKAGE
\pdfstringdefDisableCommands{\def\dblpnct#1{}}   % TRIED TO FIX IT, BUT FAILED

\usepackage{luacode}
\usepackage{etoolbox}
\newrobustcmd\dblpnct[1]{%
  \ifincsname\else
    \ifmmode\else
      \ifhmode
        \unskip
      \fi
      \nolinebreak#1%
    \fi
  \fi
}
\makeatletter
% latex.ltx, line 4070:
\def\label#1{\@bsphack
  \protected@write\@auxout{\let\dblpnct\@gobble}% <-- disable in \label
         {\string\newlabel{#1}{{\@currentlabel}{\thepage}}}%
  \@esphack}
\makeatother
\begin{luacode}
function dosub(s)
    s = string.gsub(s, ':', '\\dblpnct{\\hspace{0.08334em}}:')
    return(s)
end
\end{luacode}

\AtBeginDocument{%
    \luaexec{luatexbase.add_to_callback("process_input_buffer", dosub, "dosub")}%
}

\begin{document}

\begin{equation}
\label{eq:test}
\end{equation}

\end{document}

Best Answer

You should move the \hspace from the gsub in the definition of \dblpnct so that you don't have to fight against the expansion of the \hspace too. Then you can use \NR@sanitize@labelname to sanitize the label name. I exagerated the inserted space to check if there are side effects.

\documentclass{scrbook}

\usepackage[pdfencoding=auto,pdfpagelabels=true,psdextra]{hyperref}   % PROBLEMATIC PACKAGE
\pdfstringdefDisableCommands{\def\dblpnct#1{}}   % TRIED TO FIX IT, BUT FAILED
%
\usepackage{luacode}
\usepackage{etoolbox}
\newrobustcmd\dblpnct[1]{%
  \ifincsname\else
    \ifmmode\else
      \ifhmode
        \unskip
      \fi
      \nolinebreak\hspace{#1}%
    \fi
  \fi
}

\begin{luacode}
function dosub(s)
    s = string.gsub(s, ':', '\\dblpnct{1.08334em}:')
    return(s)
end
\end{luacode}

\makeatletter
\AtBeginDocument{%
    \luaexec{luatexbase.add_to_callback("process_input_buffer", dosub, "dosub")}%
    \ifpatchable*\NR@sanitize@labelname
    {\pretocmd\NR@sanitize@labelname{\let\dblpnct\@gobble}{}{\failed}}
    {}
}
\makeatother

\begin{document}

a:b

\begin{equation}
\label{eq:test} 
\end{equation}

a:b \label{ref:blub} a:b \ref{eq:test} a:b

\end{document}

Related Solutions

[Tex/LaTex] hyperref error: Argument of \Hy@setref@link has an extra }

The error comes not directly from \maketitle itself, but from the \thispagestyle{plain} macro usage in \maketitle.

The plain page style is defined in comnet.cls as

\def\ps@plain{%
  \def\@oddfoot{\gridpl\hfill\fontsize{6.8}{9}\selectfont  $\copyright$
    The author \number\year. Published by Oxford University Press on behalf of
    the Institute of Mathematics and its Applications. All rights reserved.}
  % \let\@evenfoot\@empty
  \def\@evnhead{\CROPMARKSA}%
  \def\@oddhead{\CROPMARKSA\begin{tabular}{@{}l}\\[-1pt]\textit{IMA Journal of Complex Networks} (\number\year) Page \fpage\ of\hspace*{2pt} \lpage\\doi:10.1093/comnet/\@kxi\end{tabular}
  }%
  \let\@mkboth\markboth
}

Now, \fpage and \lpage (used in \@oddhead) are shortcuts to

\AtBeginDocument{\label{FirstPage}}
\def\lpage{\pageref{LastPage}}
\def\fpage{\pageref{FirstPage}}

Here the real error comes in: \label{FirstPage} is written at the start of the document, due to the \AtBeginDocument hook, but hyperref is loaded later on, redefining the \label etc. macros with additional information on the labeling, meaning that \label{FirstPage} writes too few information to the .aux file for hyperref to grab it with the redefined \pageref command.

A look into the .aux file after first compilation run of the document shows (unnecessary information not given here) -- the first run is 'ok', the second compilation shows the error then!

\newlabel{FirstPage}{{}{1}}
...
\newlabel{LastPage}{{}{2}{}{page.2}{}}

It is obvious, that LastPage has more information 'slots' (especially the page.2 anchor) which is expected by hyperref to be read, but this does not work for Firstpage.

The solution is to change \fpage to \def\fpage{\pageref{CorrectFirstPageLabel}} and add the CorrectFirstPageLabel after loading of hyperref.

\documentclass{comnet}  % class from journal of complex networks
\bibpunct{[}{]}{,}{n}{,}{;}     
\usepackage[utf8]{inputenc}     
\usepackage{microtype}          
\usepackage{graphicx}           
\usepackage{algorithmicx}       
\usepackage{hyperref}           

\usepackage{blindtext}



\AtBeginDocument{
  \label{CorrectFirstPageLabel}
  \def\fpage{\pageref{CorrectFirstPageLabel}}
}

\begin{document}

\title{Complicated title}
\shorttitle{Complicated title}
\shortauthorlist{author 1, author 2}

\author{%
  \name{author 1}
  \address{springfield}
  \name{author 2}
  \address{springfield}
}

\maketitle

\begin{abstract}
    {abstract text}
    {key words}
\end{abstract}


\section{Introduction}
\section{section 1}   
\subsection{section 1.1}   
\section{section 2}    
\section{Conclusion}    

\blindtext[5]

\bibliographystyle{comnet}
%\bibliography{mybib}

\end{document}

Another solution would be to redefine \ps@plain in order to remove the \fpage macro and replace it with 1, but I don't recommend this, since other authors could make use of plain style at places in the document other than for the title page as well.

The error vanishes of course if hyperref is not loaded at all, whether the Journal of Complex Networks allows hyperrefed document submissions is not known to me. In doubt omit hyperref rather then.

Update

Here is a minimal non - working version that has the same issue by forcing a label in \AtBeginDocument and loading the hyperref package after that:

\documentclass{article}

\AtBeginDocument{%
  \section{Foo}\label{foolabel}
}

\usepackage{hyperref}

\begin{document}


\ref{foolabel}

\section{Foo again}\label{fooagainlabel}

\ref{fooagainlabel}

\end{document}

The .aux file contains

\newlabel{foolabel}{{1}{1}}

\newlabel{fooagainlabel}{{2}{1}{Foo again}{section.2}{}}

The foolabel is from the regular \label command as defined in latex.ltx, storing the section number 1 for the first page, whereas the second label definition is extended by hyperref to contain

section number 2
page number 1
Section title Foo again, to be extracted with \nameref or \nameref*
('unique') hyper anchor name section.2
'unused' (empty)

Argument of \pgfkeys@temp has an extra }. (tikz and hyperref incompatibility?)

As suggested by @muzimuzhiZ, the solution is to hide the tikz commands from hypertex's PDF metadata using \texorpdfstring, e.g.:

\DeclareRobustCommand{\circled}[1]{\texorpdfstring{\fbox{\tikz[baseline=(char.base)]{
        \node[shape=circle,draw,inner sep=2pt] (char) {#1};}}}{#1}}

Best Answer

Related Solutions

[Tex/LaTex] hyperref error: Argument of \Hy@setref@link has an extra }

Argument of \pgfkeys@temp has an extra }. (tikz and hyperref incompatibility?)

Related Question