%%
%% 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) 1993-2024
%% 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) 1993-2024 David Carlisle
\NeedsTeXFormat{LaTeX2e}
\DeclareRelease{v5}{2023-07-04}{xr-2023-07-04.sty}
\DeclareCurrentRelease{}{2024-04-10}
\ProvidesPackage{xr}
         [2024-04-10 v6.00 eXternal References (DPC)]
\def\externaldocument{\@testopt\XR@cite{}}
\let\externalcitedocument\externaldocument
\def\XR@cite[#1]{\@testopt{\XR@[#1]}{}}
\def\XR@[#1][#2]#3{\@testopt{\XR@@{#1}{#2}{#3}}{#3.\XR@ext}}
\def\XR@@nocite{nocite}
\long\def\@gobblefour  #1#2#3#4{}
\long\def\@firstoffour #1#2#3#4{#1}
\long\def\@secondoffour#1#2#3#4{#2}
\long\def\@thirdoffour #1#2#3#4{#3}
\long\def\@fourthoffour #1#2#3#4{#4}
\def\XR@addURL#1{\XR@@dURL#1{}{}{}{}\\}
\def\XR@@dURL#1#2#3#4#5\\{%
     \unexpanded{{#1}{#2}{#3}{#4}}{\XR@URL}%
  }%
\providecommand\XR@ext{pdf}
\def\XR@@#1#2#3[#4]{{%
  \makeatletter
  \def\XR@prefix{#1}%
   \def\XR@nocite{#2}%
   \ifx\XR@nocite\XR@@nocite
     \let\XR@bibcite\vadjust
   \else
     \let\XR@bibcite\bibcite
   \fi
  \def\XR@URL{#4}%
  \set@curr@file{#3}%
  \filename@parse\@curr@file
  \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\@gobblefour
  \ifx#1\newlabel
    \let\XR@tempa\@firstoffour
  \else\ifx#1\XR@bibcite
    \let\XR@tempa\@secondoffour
  \else\ifx#1\@input
     \let\XR@tempa\@thirdoffour
  \else\ifx#1\new@label@record
     \let\XR@tempa\@fourthoffour
  \fi\fi\fi\fi
   \XR@tempa
    {%
     \expandafter\protected@xdef\csname r@\XR@prefix#2\endcsname{\XR@addURL{#3}}%
    }%
    {\expandafter\bibcite\expandafter{\XR@prefix#2}{#3}}%
    {\edef\XR@list{\XR@list\filename@area#2\relax}}%
    {%
      \edef\next{\noexpand\new@label@record{\XR@prefix#2}{\unexpanded{#3}{xr-url}{\XR@URL}}}%
      \next
    }
  \ifeof\@inputcheck\expandafter\XR@aux
  \else\expandafter\XR@read\fi}
\endinput
%%
%% End of file `xr.sty'.
