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% xr.4ht (2023-03-10-14:19), generated from tex4ht-4ht.tex
% Copyright 1997-2023 TeX Users Group
% Copyright 2009-2023 TeX Users Group
%
% This work 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
% http://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 work has the LPPL maintenance status "maintained".
%
% The Current Maintainer of this work
% is the TeX4ht Project <http://tug.org/tex4ht>.
%
% If you modify this program, changing the
% version identification would be appreciated.
\immediate\write-1{version 2023-03-10-14:19}
\let\XR:loop=\XR@loop
\def\XR@loop#1{%
\def\:temp##1.aux{\openin15=##1.xref
\ifeof15
\:warning{missing ##1.xref for ##1.aux}%
\let\:temp\empty
\else
\def\:temp{\input ##1.xref}%
\fi
\closein15 \:temp
}%
\catcode`\:=11
\expandafter\ifx \csname xr:CrossWord\endcsname\relax
\let\xr:CrossWord=\Cross:Word
\def\Cross:Word##1##2{%
\expandafter\let\csname cw:\cw:format{##1##2}\endcsname\:UnDef
\xr:CrossWord{##1}{##2}}%
\fi
%
\:temp#1%
\catcode`\:=12
\XR:loop{#1}%
}
\ExplSyntaxOn
\long\def\XR@test#1#2#3#4\XR@{%
\ifx#1\newlabel
\regex_match:nnTF{@cref}{#2}% we must handle cleveref meta references
{\expandafter\xdef\csname r@\XR@prefix#2\endcsname{#3}}%
{\expandafter\xdef\csname r@\XR@prefix#2\endcsname{\XR:rEfLiNK #3}}%
%
\else\ifx#1\@input
\edef\XR@list{\XR@list#2\relax}%
\fi\fi
\ifeof\@inputcheck\expandafter\XR@aux
\else\expandafter\XR@read\fi}
\ExplSyntaxOff
\def\XRrEfLiNK[#1]#2#3{%
\filename@parse{#1}% Get basename of the linked html file,
% xr:dir\filename@base contains file's directory
\a:xr[\csname xr:dir:\filename@base\endcsname#1]{#2}{}%
\ifx\hyperrefLabel\:UnDef #3\else \hyperrefLabel\fi \b:xr}
\NewConfigure{xr}{2}
\Configure{xr}{\Link}{\EndLink}
\def\XR:rEfLiNK#1#2{{\xr:rEfLiNK#1}{\xr:rEfLiNK#2}}
\def\xr:rEfLiNK#1#2{\noexpand\XRrEfLiNK[\Get:HFile#2-]{#2}}
\def\Get:HFile#1-#2-{\:LikeRef{)F\:gobble #1F-}}
\Hinput{xr}
\endinput
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