From be88ab29c165e6b16091443c3e8f36c4febf8a27 Mon Sep 17 00:00:00 2001
From: Norbert Preining <norbert@preining.info>
Date: Wed, 22 Jan 2020 03:02:40 +0000
Subject: CTAN sync 202001220302

---
 macros/latex/contrib/xcite/xcite.dtx | 125 ++++-------------------------------
 1 file changed, 12 insertions(+), 113 deletions(-)

(limited to 'macros/latex/contrib/xcite/xcite.dtx')

diff --git a/macros/latex/contrib/xcite/xcite.dtx b/macros/latex/contrib/xcite/xcite.dtx
index d341e4399d..52fb1c8eb0 100644
--- a/macros/latex/contrib/xcite/xcite.dtx
+++ b/macros/latex/contrib/xcite/xcite.dtx
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright 2011 Enrico Gregorio
+% Copyright 2011-2020 Enrico Gregorio
 %
 % This file may be distributed and/or modified under the conditions of
 % the LaTeX Project Public License, either version 1.3c of this
@@ -28,7 +28,7 @@
 %<package>\NeedsTeXFormat{LaTeX2e}
 %<package>\ProvidesPackage{xcite}
 %<*package>
-    [2011/09/02 v1.0 eXternal Citations (EG)]
+    [2020/01/21 v16383.99998 eXternal Citations (EG)]
 %</package>
 %
 %<*driver>
@@ -45,8 +45,10 @@
 %
 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
-% \CheckSum{82}
+% \CheckSum{2}
 %
+% \changes{v16383.99998}{2020/01/21}
+%         {Final version}
 % \changes{v1.00}{2011/09/02}
 %         {First version}
 %
@@ -55,51 +57,14 @@
 % \title{The \textsf{xcite} package\thanks{This file
 %         has version number \fileversion, last
 %         revised \filedate.}}
-% \author{Enrico Gregorio\thanks{%
-%   This package derives from \textsf{xr} by David Carlisle}\\
-%   {\small\texttt{Enrico dot Gregorio at univr dot it}}}
+% \author{Enrico Gregorio\thanks{\texttt{Enrico dot Gregorio at univr dot it}}}
 % \date{\filedate}
 % \maketitle
 %
 % \section{Description}
-% This package implements a system for eXternal Citations.
-% If one document needs to refer to citations in another, say |aaa.tex|,
-% then this package may be loaded in the main file, and the command\\[\topsep]
-% |\externalcitedocument{aaa}|\\[\topsep]
-% given in the preamble.
-%
-% Then you may use |\cite| to refer to anything which has been
-% declared by |\bibitem| in either |aaa.tex| or the main document.
-% You may declare any number of such external documents. Notice that
-% |\bibitem| commands may not appear in |aaa.tex|, but rather in
-% |aaa.bbl| if \textsc{Bib}\negthinspace\TeX{} or Biber are used to
-% generate the bibliography, but this doesn't matter. The important
-% thing is that |aaa.tex| is in final form with all citations resolved
-% and that |aaa.aux| is readable.
-%
-% If any of the external documents, or the main document, use the same
-% citation key then an error will occur as the label will be multiply
-% defined. To overcome this problem |\externalcitedocument| has an
-% optional argument. If you declare\\[\topsep]
-% |\externalcitedocument[A-]{aaa}|\\[\topsep]
-% then all references from |aaa| are prefixed by |A-|. So for
-% instance, if |aaa.tex| had |\bibitem{xyz}|, then this could be
-% referenced with |\cite{A-xyz}|. The prefix need not be |A-|, it can
-% be any string chosen to ensure that all the keys imported from
-% external files are unique. Note however that if your style declares
-% certain active characters (|:| in French, |"| in German) then these
-% characters can not usually be used in |\cite|, and similarly may
-% not be used in the optional argument to |\externalcitedocument|.
-%
-% \section{Acknowledgment}
-% This package is just a straightforward modification of David
-% Carlisle's \textsf{xr} package (based on Jean-Pierre Drucbert's
-% work). The changes consisted in renaming the main command and
-% substituting |\newlabel| with |\bibcite|; the |XR| prefix to
-% internal commands has been changed into |XC|.
-%
-% These modifications are possible because |\newlabel| and |\bibcite|
-% are almost the same command in disguise.
+% This package is a stub that just loads \texttt{xr}, that,
+% starting from version 5.05 (released 2019/07/20) includes 
+% the facilities previously in \texttt{xcite}.
 %
 % This package originated from a question in
 % |TeX.StackExchange.com|.\footnote{\ttfamily
@@ -113,77 +78,11 @@
 %<*package>
 %    \end{macrocode}
 %
-% Save the optional prefix. Start processing the first |aux| file.
+% Load \texttt{xr}
 %    \begin{macrocode}
-\newcommand\externalcitedocument[2][]{{%
-  \makeatletter
-  \def\XC@prefix{#1}%
-  \XC@next#2.aux\relax\\}}
-%    \end{macrocode}
-%
-% Process the next |aux| file in the list and remove it from the head of
-% the list of files to process.
-%    \begin{macrocode}
-\def\XC@next#1\relax#2\\{%
-  \edef\XC@list{#2}%
-  \XC@loop{#1}}
-%    \end{macrocode}
-%
-% Check whether the list of |aux| files is empty.
-%    \begin{macrocode}
-\def\XC@aux{%
-  \ifx\XC@list\@empty\else\expandafter\XC@explist\fi}
-%    \end{macrocode}
-%
-% Expand the list of |aux| files, and call |\XC@next| to process the first
-% one.
-%    \begin{macrocode}
-\def\XC@explist{\expandafter\XC@next\XC@list\\}
-%    \end{macrocode}
-%
-% If the |aux| file exists, loop through line by line, looking for
-% |\bibcite| and |\@input|. Otherwise process the next file in the
-% list.
-%    \begin{macrocode}
-\def\XC@loop#1{\openin\@inputcheck#1\relax
-  \ifeof\@inputcheck
-    \PackageWarning{xc}{^^JNo file #1^^JLABELS NOT IMPORTED.^^J}%
-    \expandafter\XC@aux
-  \else
-    \PackageInfo{xc}{IMPORTING LABELS FROM #1}%
-    \expandafter\XC@read\fi}
-%    \end{macrocode}
-%
-% Read the next line of the aux file.
-%    \begin{macrocode}
-\def\XC@read{%
-  \read\@inputcheck to\XC@line
-%    \end{macrocode}
-% The |...| make sure that |\XC@test| always has sufficient arguments.
-%    \begin{macrocode}
-  \expandafter\XC@test\XC@line...\XC@}
-%    \end{macrocode}
-%
-% Look at the first token of the line.
-% If it is |\bibcite|, do the |\bibcite|. If it is |\@input|, add the
-% filename to the list of files to process. Otherwise ignore.
-% Go around the loop if not at end of file. Finally process the next
-% file in the list.
-%    \begin{macrocode}
-\long\def\XC@test#1#2#3#4\XC@{%
-  \ifx#1\bibcite
-    \bibcite{\XC@prefix#2}{#3}%
-  \else\ifx#1\@input
-     \edef\XC@list{\XC@list#2\relax}%
-  \fi\fi
-  \ifeof\@inputcheck\expandafter\XC@aux
-  \else\expandafter\XC@read\fi}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%</package>
+\RequirePackage{xr}
+\endinput
 %    \end{macrocode}
 %
 % \Finale
 %
-
-- 
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