% $Id: numeric-comp.cbx,v 0.8e 2009/07/04 15:02:31 lehman beta $

\ProvidesFile{numeric-comp.cbx}
[\abx@cbxid $Id: numeric-comp.cbx,v 0.8e 2009/07/04 15:02:31 lehman beta $]

\ExecuteBibliographyOptions{labelnumber,sortcites,autocite=inline}
\renewcommand*{\multicitedelim}{\addcomma\space}
\providebool{bbx:subentry}
\DeclareFieldFormat{entrysetcount}{\mknumalph{#1}}

\newbibmacro*{cite:init}{%
  \let\cbx@tempa=\empty
  \undef\cbx@lasthash
  \@tempcnta=\z@
  \@tempcntb=-2\relax}

\newbibmacro*{cite:comp}{%
  \global\advance\@tempcntb\@ne
  \iffieldundef{shorthand}
    {\ifbool{bbx:subentry}
       {\iffieldundef{entrysetcount}
	  {\usebibmacro{cite:comp:comp}}
          {\usebibmacro{cite:comp:inset}}}
       {\usebibmacro{cite:comp:comp}}}
    {\usebibmacro{cite:comp:shand}}}

\newbibmacro*{cite:comp:comp}{%
  \ifnum\thefield{labelnumber}=\@tempcntb
    \savefield{entrykey}{\cbx@lastkey}%
    \savefield{labelnumber}{\cbx@lastnumber}%
    \global\advance\@tempcnta\@ne
  \else
    \ifnum\thefield{labelnumber}=\numexpr\@tempcntb-\@ne\relax
    \else
      \usebibmacro{cite:dump}%
      \ifnum\@tempcntb>\m@ne\multicitedelim\fi
      \printtext[bibhyperref]{\printfield{labelnumber}}%
    \fi
  \fi
  \global\@tempcntb=\thefield{labelnumber}\relax}

\newbibmacro*{cite:comp:inset}{%
  \usebibmacro{cite:dump}%
  \ifnum\@tempcntb>\m@ne\multicitedelim\fi
  \printtext[bibhyperref]{%
    \printfield{labelnumber}%
    \printfield{entrysetcount}}%
  \global\@tempcntb=\m@ne}

\newbibmacro*{cite:comp:shand}{%
  \usebibmacro{cite:dump}%
  \ifnum\@tempcntb>\m@ne\multicitedelim\fi
  \printtext[bibhyperref]{\printfield{shorthand}}%
  \global\@tempcntb=\m@ne}

\newbibmacro*{cite:dump}{%
  \ifnum\@tempcnta>\z@
    \ifnum\@tempcnta>\@ne
      \bibrangedash
    \else
      \multicitedelim
    \fi
    \bibhyperref[\cbx@lastkey]{%
      \printtext[labelnumber]{\cbx@lastnumber}}%
    \global\@tempcnta=\z@
  \fi}

\DeclareCiteCommand{\cite}
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}%
   \bibleftbracket}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite:comp}}
  {}
  {\usebibmacro{cite:dump}%
   \usebibmacro{postnote}%
   \bibrightbracket}

\DeclareCiteCommand{\parencite}[\mkbibbrackets]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite:comp}}
  {}
  {\usebibmacro{cite:dump}%
   \usebibmacro{postnote}}

\DeclareCiteCommand{\footcite}[\mkbibfootnote]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite:comp}}
  {}
  {\usebibmacro{cite:dump}%
   \usebibmacro{postnote}}

\DeclareCiteCommand{\textcite}
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \iffieldequals{namehash}{\cbx@lasthash}
     {\usebibmacro{cite:comp}}
     {\usebibmacro{cite:dump}\cbx@tempa
      \usebibmacro{cite:init}%
      \ifnameundef{labelname}
        {}
        {\printnames{labelname}\space}%
      \bibleftbracket
      \usebibmacro{cite:comp}}%
   \savefield{namehash}{\cbx@lasthash}%
   \gdef\cbx@tempa{\bibrightbracket\multicitedelim}}
  {}
  {\usebibmacro{cite:dump}%
   \usebibmacro{postnote}\bibrightbracket}

\DeclareCiteCommand{\supercite}[\mkbibsuperscript]
  {\usebibmacro{cite:init}%
   \let\multicitedelim=\supercitedelim
   \iffieldundef{prenote}
     {}
     {\BibliographyWarning{Ignoring prenote argument}}%
   \iffieldundef{postnote}
     {}
     {\BibliographyWarning{Ignoring postnote argument}}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite:comp}}
  {}
  {\usebibmacro{cite:dump}}

\DeclareMultiCiteCommand{\cites}[\mkbibbrackets]{\parencite}{\multicitedelim}
\DeclareMultiCiteCommand{\parencites}[\mkbibbrackets]{\parencite}{\multicitedelim}

\endinput