% $Id: numeric-comp.cbx,v 0.9a 2010/03/19 19:52:15 lehman beta $

\ProvidesFile{numeric-comp.cbx}
[\abx@cbxid $Id: numeric-comp.cbx,v 0.9a 2010/03/19 19:52:15 lehman beta $]

\ExecuteBibliographyOptions{labelnumber,sortcites,autocite=inline}
\renewcommand*{\multicitedelim}{\addcomma\space}
\providebool{bbx:subentry}
\newcounter{cbx@tempcnta}
\newcounter{cbx@tempcntb}

\DeclareFieldFormat{entrysetcount}{\mknumalph{#1}}

\newbibmacro*{cite:init}{%
  \let\cbx@tempa=\empty
  \undef\cbx@lasthash
  \defcounter{cbx@tempcnta}{0}%
  \defcounter{cbx@tempcntb}{-2}}

\newbibmacro*{cite:comp}{%
  \global\defcounter{cbx@tempcntb}{\value{cbx@tempcntb}+1}%
  \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}{%
  \ifnumequal{\thefield{labelnumber}}{\value{cbx@tempcntb}}
    {\savefield{entrykey}{\cbx@lastkey}%
     \savefield{labelnumber}{\cbx@lastnumber}%
     \global\defcounter{cbx@tempcnta}{\value{cbx@tempcnta}+1}}
    {\ifnumequal{\thefield{labelnumber}}{\value{cbx@tempcntb}-1}
       {}
       {\usebibmacro{cite:dump}%
	\ifnumgreater{\value{cbx@tempcntb}}{-1}
	  {\multicitedelim}
	  {}%
	\printtext[bibhyperref]{\printfield{labelnumber}}}}%
  \global\defcounter{cbx@tempcntb}{\thefield{labelnumber}}}

\newbibmacro*{cite:comp:inset}{%
  \usebibmacro{cite:dump}%
  \ifnumgreater{\value{cbx@tempcntb}}{-1}
    {\multicitedelim}
    {}%
  \printtext[bibhyperref]{%
    \printfield{labelnumber}%
    \printfield{entrysetcount}}%
  \global\defcounter{cbx@tempcntb}{-1}}

\newbibmacro*{cite:comp:shand}{%
  \usebibmacro{cite:dump}%
  \ifnumgreater{\value{cbx@tempcntb}}{-1}
    {\multicitedelim}
    {}%
  \printtext[bibhyperref]{\printfield{shorthand}}%
  \global\defcounter{cbx@tempcntb}{-1}}

\newbibmacro*{cite:dump}{%
  \ifnumgreater{\value{cbx@tempcnta}}{0}
    {\ifnumgreater{\value{cbx@tempcnta}}{1}
       {\bibrangedash}
       {\multicitedelim}%
     \bibhyperref[\cbx@lastkey]{%
       \printtext[labelnumber]{\cbx@lastnumber}}%
     \global\defcounter{cbx@tempcnta}{0}}
    {}}

\newbibmacro*{textcite}{%
  \iffieldequals{namehash}{\cbx@lasthash}
    {\usebibmacro{cite:comp}}
    {\usebibmacro{cite:dump}\cbx@tempa
     \usebibmacro{cite:init}%
     \ifnameundef{labelname}
       {\printfield[citetitle]{labeltitle}}
       {\printnames{labelname}}%
     \addspace\bibopenbracket
     \ifnumequal{\value{citecount}}{1}
       {\usebibmacro{prenote}}
       {}%
     \usebibmacro{cite:comp}}%
  \savefield{namehash}{\cbx@lasthash}%
  \gdef\cbx@tempa{\bibclosebracket\multicitedelim}}

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

\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{\footcitetext}[\mkbibfootnotetext]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite:comp}}
  {}
  {\usebibmacro{cite:dump}%
   \usebibmacro{postnote}}

\DeclareCiteCommand{\textcite}
  {\usebibmacro{cite:init}}
  {\usebibmacro{citeindex}%
   \usebibmacro{textcite}}
  {}
  {\usebibmacro{postnote}%
   \bibclosebracket}

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

\endinput