Mrthfx

I am attempting to write macro that extracts and formats information from a label.

I get the messages:

! Argument of @firstoftwo has an extra }.

par
l.84 ... is text that refers to fullcref{sec:foo}
.
? x

From this code:

documentclass{article}



usepackage{amsmath}

usepackage{amsthm}

usepackage{mathtools}

usepackage{xparse}



newcommand pagecref [1]

   {

     fullcref{#1} on cpageref{#1}

   }



newcommand Pagecref [1]

   {

     Fullcref{#1} on cpageref{#1}

   }



ExplSyntaxOn



% Remove when added to expl3

cs_generate_variant:Nn str_show:n {e}

cs_generate_variant:Nn tl_log:n {e}

cs_generate_variant:Nn tl_show:n {e}



% Render type # (description)

%       begin{equation} does not retain optional parameter in nameref{label}

NewDocumentCommand fullcref {m}

    {

      fullcref:nn {cref} {#1}

    }



NewDocumentCommand Fullcref {m}

    {

      fullcref:nn {Cref} {#1}

    }



cs_new:Npn fullcref:nn #1 #2

  {

%     str_show:e {fullcref:~#2~has~tl_count:n {#2}~tokens}

%     str_show:e {fullcref:~#2~labels~a~namecref{#2}}

%     tl_show:e  {fullcref:~#2~has~environment~type~#1{#2}}

      bool_if:nTF

        {

%         str_if_eq_p:ee {nameref{#2}}                {equation} ||

          str_if_eq_p:ee {str_range:nnn {#2} {1} {3}} {eq:} ||

          str_if_eq_p:ee {namecref{#2}}               {}

        }

        {

%          str_show:n {true}

%          #1 {#2} on cpageref{#2}

          true 

        }

        {

%           str_show:n {false}

%           #1 {#2} (nameref{#2}) on cpageref{#2}

          false 

        }

  }



ExplSyntaxOff





newtheorem{theorem}{Theorem}[section]



theoremstyle{definition}

newtheorem{definition}[theorem]{Definition}

defdefinitionutorefname{Definition} % Needed for autoref

newtheorem{example}[theorem]{Example}



usepackage[colorlinks,hidelinks,draft=false]{hyperref}



usepackage{cleveref}

usepackage[draft]{showlabels}



begin{document}

section{foo bear}

label{sec:foo}

This is dummy text.



begin{equation}

label{eq:foo}

end{equation}



This is text that refers to fullcref{sec:foo}. \



This is text that refers to fullcref{eq:foo}. \



This is text that refers to fullcref{def:foo}. \



This is text that refers to fullcref{def:bar}. \



This is text that refers to pagecref{sec:foo}. \



This is text that refers to pagecref{eq:foo}. \



This is text that refers to pagecref{def:foo}. \



This is text that refers to pagecref{def:bar}. \



begin{definition}

label{def:foo}

This is a definition without descriptive text.

end{definition}



Fullcref{sec:foo}. \



Fullcref{eq:foo}. \



Fullcref{def:foo}. \



Fullcref{def:bar}. \



Pagecref{sec:foo}. \



Pagecref{eq:foo}. \



Pagecref{def:foo}. \



Pagecref{def:bar}. \



begin{definition}[dummy definition]

label{def:bar}

This is a definition with descriptive text.

end{definition}



end{document}