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%%
%% This is file `xr.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% xr.dtx (with options: `package')
%%
%% This is a generated file.
%%
%% The source is maintained by the LaTeX Project team and bug
%% reports for it can be opened at https://latex-project.org/bugs/
%% (but please observe conditions on bug reports sent to that address!)
%%
%%
%% Copyright (C) 1993-2021
%% The LaTeX Project and any individual authors listed elsewhere
%% in this file.
%%
%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
%% --------------------------------------------------------------------------
%%
%% It may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%% https://www.latex-project.org/lppl.txt
%% and version 1.3c or later is part of all distributions of LaTeX
%% version 2005/12/01 or later.
%%
%% This file may only be distributed together with a copy of the LaTeX
%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
%% without such generated files.
%%
%% The list of all files belonging to the LaTeX `Tools Bundle' is
%% given in the file `manifest.txt'.
%%
%% File: xr.dtx Copyright (C) 1993-2019 David Carlisle
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{xr}
[2020-05-10 v5.06 eXternal References (DPC)]
\def\externaldocument{\@ifnextchar[\XR@{\XR@[]}}
\let\externalcitedocument\externaldocument
\def\XR@[#1]#2{{%
\makeatletter
\def\XR@prefix{#1}%
\set@curr@file{#2}%
\expandafter\XR@next\@curr@file.aux\relax\\}}
\def\XR@next#1\relax#2\\{%
\edef\XR@list{#2}%
\XR@loop{#1}}
\def\XR@aux{%
\ifx\XR@list\@empty\else\expandafter\XR@explist\fi}
\def\XR@explist{\expandafter\XR@next\XR@list\\}
\def\XR@loop#1{\openin\@inputcheck{#1}\relax
\ifeof\@inputcheck
\PackageWarning{xr}{^^JNo file #1^^JLABELS NOT IMPORTED.^^J}%
\expandafter\XR@aux
\else
\PackageInfo{xr}{IMPORTING LABELS FROM #1}%
\expandafter\XR@read\fi}
\def\XR@read{%
\read\@inputcheck to\XR@line
\expandafter\XR@test\XR@line...\XR@}
\long\def\XR@test#1#2#3#4\XR@{%
\let\XR@tempa\@gobbletwo
\ifx#1\newlabel
\let\XR@tempa\@firstoftwo
\else\ifx#1\bibcite
\let\XR@tempa\@firstoftwo
\else\ifx#1\@input
\let\XR@tempa\@secondoftwo
\fi\fi\fi
\XR@tempa{#1{\XR@prefix#2}{#3}}{\edef\XR@list{\XR@list#2\relax}}%
\ifeof\@inputcheck\expandafter\XR@aux
\else\expandafter\XR@read\fi}
\endinput
%%
%% End of file `xr.sty'.
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