⟦c9f0edee4⟧

TextFile

%==========================================================================
% chapterbib.sty        Version 1.0 (23-NOV-1988)
% ~~~~~~~~~~~~~~
% Allow multiple bibliographies in a LaTeX document, including items
% \cite'd in more than one bibliography.
%
% Restrictions
% ~~~~~~~~~~~~
%
%   1.  The \bibliography and \bibliographystyle commands may not be used
%       in the root file, only in files that have been \include'd. If you
%       try to use them, a LaTeX warning is issued and the offending
%       command(s) ignored. This restriction occurs because the root .aux
%       file includes the subsidiary .aux files and when BibTeX processes
%       the root .aux file, it complains about multiple \bibdata commands.
%
%   2.  If you want to \cite in the root file, you must provide your own
%       bibliography within the root file using the thebibliography
%       environment. I don't suppose that this will appeal to BibTeX users!
%
%   3.  The subsidiary files must be \include'd (not \input'ed) by the root
%       file, with only one bibliography per \include'd file.
%
%   4.  The style file works by redefining the \bibcite, so if you've got
%       any other style files that use \bibcite, watch out!  The only style 
%       files (that I've seen) with \bibcite in them are deproc.sty, 
%       ctswan.sty & ipr.sty.
%
% Author
% ~~~~~~
% Niel Kempson                       | Telephone:      Swindon (0793) 785687
% School of Elec Eng & Science,      |  International: +44-793-785687
% Royal Military College of Science, | 
% Shrivenham, SWINDON,               | E-mail:
% SN6 8LA,                           |  JANET: rmcs-tex@uk.ac.cranfield.cdvc
% United Kingdom                     |
%==========================================================================


\let\@debugoutput=\@gobble
%
%*************************************************************************
% DEBUGGING MACROS. To see what global variables are being assigned and
% tested, uncomment these lines.
%
%
% \let\@debugoutput=\typeout
% \def\@debugnamedef#1#2{\expandafter\def\csname #1\endcsname{#2}%
%    \@debugoutput{\string\@debugnamedef: defined `#1' \space as `#2'}}
% \def\@debugtestdef #1#2#3{%
%   \@debugoutput{\string\@debugtestdef: testing whether `#1@#2' = `#3'}
%   \def\@tempa{#3}\expandafter \ifx \csname #1@#2\endcsname%
%   \@tempa  \else \@tempswatrue \fi}
% \def\@debugbibtestdef #1#2#3#4{%
%   \@debugoutput{\string\@debugbibtestdef: testing whether `#1@#2@#4' %
%                = `#3'}
%   \def\@tempa{#3}\expandafter \ifx \csname #1@#2@#4\endcsname%
%   \@tempa  \else \@tempswatrue \fi}
% \let\@testdef=\@debugtestdef
% \let\@bibtestdef=\xbibtestdef
% \let\@namedef=\@debugnamedef
%
%*************************************************************************

%
%-------------------------------------------------------------------------
% Keep track of files currently opened.
% 1. The counter @ipfilectr keeps track of the currently open I/P file,
%    and @includefilectr keeps track of the \include files.
% 2. @ipfilectr is set to @includefilectr, except when processing the root
%    file. An arbitrary large (number greater than the maximum number of
%    include files) is used to denote the root file.
%-------------------------------------------------------------------------
\newcounter{@ipfilectr}                 % current I/P file,
\def\the@ipfilectr{\roman{@ipfilectr}}  % displayed as roman numerals
\newcounter{@includefilectr}            % current \include file
\def\@rootfilevalue{1988}               % arbitrary value for root file 
\def\savedjobname{\jobname}             % save root file name as a macro

%
%-----------------------------------------------------------------------
% The name of the current I/P file is stored in macro \@currentipfile 
% and the global macro ipfile@the@ipfilectr is set to this name whenever
% \@currentipfile changes.
%-----------------------------------------------------------------------
\def\@currentipfile{\jobname}           % initialize to root file
\setcounter{@ipfilectr}{\@rootfilevalue}        % ditto
\global\@namedef{ipfile@\the@ipfilectr}{\@currentipfile}

%
%-----------------------------------------------------------------------
% Redefine the \include macro (taken from LATEX.TEX of 25-JAN-1988) so
% that when a file is \include'd
% 1. \@currentipfile is updated and \includefilectr incremented
% 2. ipfilectr set to includefilectr
% 3. global macro ipfile@\the@ipfilectr set to \@currentfile
%
% When the \include'd file is finished with
% 1. reset \@currentipfile to the root file name (\jobname)
% 2. reset ipfilectr to \@rootfilevalue
% 3. global macro ipfile@\the@ipfilectr set to \@currentfile
%-----------------------------------------------------------------------
\def\include#1{\clearpage
\def\@currentipfile{#1}                             
\@debugoutput{\string\@currentipfile = `\@currentipfile'}    
\addtocounter{@includefilectr}{1}                           
\setcounter{@ipfilectr}{\value{@includefilectr}}            
\global\@namedef{ipfile@\the@ipfilectr}{\@currentipfile}   
%
\if@filesw \immediate\write\@mainaux{\string\@input{#1.aux}}\fi
\@tempswatrue\if@partsw \@tempswafalse\def\@tempb{#1}\@for
\@tempa:=\@partlist\do{\ifx\@tempa\@tempb\@tempswatrue\fi}\fi
\if@tempswa \if@filesw \let\@auxout=\@partaux
\immediate\openout\@partaux #1.aux
\immediate\write\@partaux{\relax}\fi\@input{#1.tex}\clearpage
\@writeckpt{#1}\if@filesw\immediate\closeout\@partaux \fi
\let\@auxout=\@mainaux\else\@nameuse{cp@#1}\fi
%
\def\@currentipfile{\jobname}                              
\@debugoutput{\string\@currentipfile = `\@currentipfile'}    
\setcounter{@ipfilectr}{\@rootfilevalue}                    
\global\@namedef{ipfile@\the@ipfilectr}{\@currentipfile}}

%
%-------------------------------------------------------------------------
%      ****************************************
%      *            BIBLIOGRAPHY              *
%      ****************************************
%
%  A bibliography is created by the bibliography environment, which
%  generates a title such as ``References'', and a list of entries.  The
%  BIBTeX program will create a file containing such an environment, which
%  will be read in by the \bibliography command.  With BIBTeX, the
%  following commands will be used.
%
%  CONVENTION
%
%  \b@FOO@ipfile@iv     : The name or number of the reference created by
%                         \cite{FOO} in \include file iv
%               e.g.    if in the 4th \include file, \cite{FOO} -> [17],
%                       then \b@FOO@ipfile@iv -> 17.
%-------------------------------------------------------------------------

%
%-------------------------------------------------------------------------
% \bibcite is now defined as: \bibcite{LABEL}{VALUE}{IPFILECTR}, so make
% the \bibitem & \bibiteml commands output the extra parameter.
%-------------------------------------------------------------------------
\def\@lbibitem[#1]#2{\item[\@biblabel{#1}]\if@filesw
  { \def\protect##1{\string ##1\space}\immediate
    \write\@auxout{\string\bibcite{#2}{#1}{\the@ipfilectr}}}\fi\ignorespaces}
%% Placement of `}' in def of \@lbibitem corrected 29 Apr 87
%% (Error found by Arthur Ogawa.)

\def\@bibitem#1{\item\if@filesw \immediate\write\@auxout
    {\string\bibcite{#1}{\the\c@enumi}{\the@ipfilectr}}\fi\ignorespaces}

\def\bibcite#1#2#3{{\global\@namedef{b@#1@#3}{#2}}}

\def\cite{\@ifnextchar [{\@tempswatrue\@citex}{\@tempswafalse\@citex[]}}
%
% \penalty\@m added to definition of \@citex to allow a line
% break after the `,' in citations like [Jones80,Smith77]
% (Added 23 Oct 86)
%
% space added after the `,' (21 Nov 87)
%

\def\@citex[#1]#2{\if@filesw\immediate\write\@auxout{\string\citation{#2}}\fi
  \def\@citea{}\@cite{\@for\@citeb:=#2\do
    {\@citea\def\@citea{,\penalty\@m\ }%
    \@debugoutput{\string\@citex: testing whether `b@\@citeb @\the@ipfilectr'%
      is defined.}%
    \@ifundefined
    {b@\@citeb @\the@ipfilectr}{{\bf ?}\@warning
        {Citation `\@citeb' in file `\@nameuse{ipfile@\the@ipfilectr}' %
            on page \thepage \space undefined}}%
    \hbox{\csname b@\@citeb @\the@ipfilectr\endcsname}}}{#1}}

%
%-------------------------------------------------------------------------
% We don't allow \bibliography and \bibliographystyle commands in the root
% file, so warn and ignore if appropriate.
%-------------------------------------------------------------------------
\def\bibliographystyle#1{%
  \ifx\@currentipfile\savedjobname
    \@warning{\string\bibliographystyle \space commands in the root file %
              are ignored ^^Jby the `chapterbib' style option.}
  \else 
    \if@filesw\immediate\write\@auxout{\string\bibstyle{#1}}\fi
  \fi}
    
\def\bibliography#1{%
  \ifx\@currentipfile\savedjobname
    \@warning{\string\bibliography \space commands in the root file %
            are ignored ^^Jby the `chapterbib' style option.}
  \else 
    \if@filesw\immediate\write\@auxout{\string\bibdata{#1}}\fi
    \@input{\@currentipfile.bbl}\fi}

%
%-------------------------------------------------------------------------
% All we need to do now is to redefine \enddocument so that it properly
% checks whether the \cite labels have changed. 
%-------------------------------------------------------------------------
\def\enddocument{\@checkend{document}\clearpage\begingroup  
\if@filesw \immediate\closeout\@mainaux 
\def\global\@namedef##1##2{}\def\newlabel{\@testdef r}%
\def\bibcite{\@bibtestdef b}\@tempswafalse \makeatletter\input \jobname.aux
\if@tempswa \@warning{Label(s) may have changed.  Rerun to get
cross-references right}\fi\fi\endgroup\deadcycles\z@\@@end}

\def\@bibtestdef #1#2#3#4{%
  \def\@tempa{#3}\expandafter \ifx \csname #1@#2@#4\endcsname%
  \@tempa  \else \@tempswatrue \fi}
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