\RequirePackage{expkv-def,enverb}

%% key setup
\enverbsetup{key-set=expkv/enverb}
\ekvdefinekeys{expkv/enverb}
  {
    ,boolTF same-line = \ekvdoc@enverb@ifsameline
    ,unknown-choice same-line =
      \let\ekvdoc@enverb@ifsameline\@firstoftwo\edef\ekvdoc@enverb@codeshare{\unexpanded{#1}}
    ,initial same-line = 0.75
    ,invboolTF other-line = \ekvdoc@enverb@ifsameline
    ,nmeta below = {same-line=false, no-aboveskip, no-belowskip}
    ,nmeta undo-below = {same-line=true, aboveskip, belowskip}
    ,store same-line-lst = \ekvdoc@enverb@options@lst@same
    ,store same-line-tcb = \ekvdoc@enverb@options@tcb@same
    ,initial same-line-lst = {aboveskip=0pt,belowskip=0pt}
    ,initial same-line-tcb = {nobeforeafter,box align=center}
    ,store other-line-lst = \ekvdoc@enverb@options@lst@other
    ,store other-line-tcb = \ekvdoc@enverb@options@tcb@other
    ,meta slst = same-line-lst={#1}
    ,meta stcb = same-line-tcb={#1}
    ,meta olst = other-line-lst={#1}
    ,meta otcb = other-line-tcb={#1}
    ,store lst = \ekvdoc@enverb@options@lst
    ,store tcb = \ekvdoc@enverb@options@tcb
    ,boolTF no-lst  = \ekvdoc@enverb@ifno@lst
    ,also nmeta no-lst = below
    ,boolTF no-tcb  = \ekvdoc@enverb@ifno@tcb
    ,also nmeta no-tcb = below
    ,nmeta undo-no-tcb = {no-tcb=false, undo-below}
    ,store inter   = \ekvdoc@enverb@inter
    ,data  gappend = \ekvdoc@enverb@append
    ,dataT pre-tcb = \ekvdoc@enverb@pretcb
    ,store after   = \ekvdoc@enverb@after
    ,nmeta store   = gappend=\ekvdoc@enverb@store
    ,noval no-store = \let\ekvdoc@enverb@append\@secondoftwo
    ,nmeta restore = {o: pre-tcb=\ekvdoc@enverb@store,after=\ekvdoc@enverb@clear@store}
    ,code aboveskip = \edef\ekvdoc@enverb@aboveskip{\vskip\unexpanded{#1}\relax}
    ,code belowskip = \edef\ekvdoc@enverb@belowskip{\vskip\unexpanded{#1}\relax}
    ,default aboveskip = \medskipamount
    ,default belowskip = \medskipamount
    ,initial aboveskip
    ,initial belowskip
    ,noval no-aboveskip = \let\ekvdoc@enverb@aboveskip\@empty
    ,noval no-belowskip = \let\ekvdoc@enverb@belowskip\@empty
  }
\protected\def\ekvdoc@enverb@clear@store{\global\let\ekvdoc@enverb@store\@empty}
\ekvdoc@enverb@clear@store

\newcommand\ekvdoc@enverb@gaddo[2]
  {\xdef#1{\unexpanded\expandafter{#1}\unexpanded\expandafter{#2}}}
\newcommand\ekvdoc@enverb@pre[2]
  {\edef#1{\unexpanded{#2}\unexpanded\expandafter{#1}}}
\NewCommandCopy\Enverb\enverb
\def\enverb{\Enverb{}}
\def\endenverb
  {%
    \ekvdoc@enverb@append\ekvdoc@enverb@gaddo\@gobble\enverbBody
    \par
    \ekvdoc@enverb@aboveskip
    \ekvdoc@enverb@ifno@lst{}%
      {%
        \ekvdoc@enverb@ifsameline
          {\noindent\begin{minipage}[c]{\ekvdoc@enverb@codeshare\linewidth}}%
          {}%
        \ExpandArgs{ne}\enverbListing{lstlisting}
          {[{%
            \ekvdoc@enverb@options@lst,%
            \ekvdoc@enverb@ifsameline
              \ekvdoc@enverb@options@lst@same
              \ekvdoc@enverb@options@lst@other
          }]}%
        \ekvdoc@enverb@ifsameline{\end{minipage}}{}%
      }%
    \ekvdoc@enverb@inter
    \ekvdoc@enverb@ifno@tcb{}%
      {%
        \expanded{\noexpand\begin{exresult}
          [{%
            \ekvdoc@enverb@options@tcb,%
            \ekvdoc@enverb@ifsameline
              \ekvdoc@enverb@options@tcb@same
              \ekvdoc@enverb@options@tcb@other
          }]}%
          {%
            \linewidth
            \ekvdoc@enverb@ifsameline{-\ekvdoc@enverb@codeshare\linewidth}{}%
          }%
          \ekvdoc@enverb@pretcb{\ekvdoc@enverb@pre\enverbBody}%
          \enverbExecute
        \end{exresult}%
      }%
    \par
    \ekvdoc@enverb@belowskip
    \ekvdoc@enverb@after
    \@endpetrue
  }