hyperref

git-svn-id: svn://tug.org/texlive/trunk@985 c570f23f-e606-0410-a88d-b1316a301751

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diff --git a/Master/texmf-dist/tex/latex/hyperref/xr-hyper.sty b/Master/texmf-dist/tex/latex/hyperref/xr-hyper.sty
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+%% xr package (beta release)
+
+%% Copyright (C) 1993-1997 David Carlisle
+
+%% This is a modified version of the xr package from the Standard LaTeX
+%% tools distribution. It has some internal changes to cooperate with
+%% the hyperref package, and one new user level argument, also mainly of
+%% use for hyperref.
+%% If no problems are reported the version in the tools distribution
+%% will be updated to match this at the next LaTeX release.
+
+%% \externaldocument[prefix]{document}[URL]
+
+%% The `document' referred to by the main argument is the file
+%% document.aux
+%% which must be somewhere on TeX's input path.
+%% Some packages (eg hyperref) really need to know the location of the
+%% final document rather than the aux file. By default this is assumed
+%% to be `document.dvi'. A package may redefine the command \XR@ext to
+%% change this default extension (eg some of the hyperref backends
+%% define this to be `document.pdf'). However sometimes the final
+%% document may be in a position unrelated to the aux file, or the
+%% browser may not be able to find files at an arbitrary point in
+%% TeX's input path, so the new final optional argument allows a full
+%% URL to the final document to be specified.
+%%
+%% \externaldocument{file}[http://here.xxx.edu/this/path/to/file.dvi]
+%%
+%% Unless a package redefines \XR@addfile, the optional URL argument
+%% will be ignored.
+%%
+%% This version (beta2) also has another improvement unrelated
+%% to the hyperref support. Olivier Michel pointed out that
+%% if the aux file was not on texinputs you could not always go
+%% \externaldocument{/some/path/to/file}
+%% specifically that worked if file.aux was a `simple'  document with
+%% one aux file, but if \include had been used, the `sub' aux files
+%% would not be found by xr in the remote directory.
+%% This version calls \filename@parse to get the directory name of the
+%% remote directory, which is then explicitly prepended to the names of
+%% any included aux files.
+%%
+%% History
+%%
+%% 1997/10/06 v6.00beta2
+%%
+%% 1999/09/01 v6.00beta3
+%%   Definitions of \XR@addURL corrected (Heiko Oberdiek).
+%%
+%% 2000/03/22 v6.00beta4
+%%   \xdef changed to \protected@xdef.
+%%
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{xr-hyper}
+         [2000/03/22 v6.00beta4 eXternal References (DPC)]
+
+\def\externaldocument{\@testopt\XR@{}}
+\def\XR@[#1]#2{\@testopt{\XR@@{#1}{#2}}{#2.\XR@ext}}
+
+\def\XR@@#1#2[#3]{{%
+  \makeatletter
+  \def\XR@prefix{#1}%
+  \def\XR@URL{#3}%
+  \filename@parse{#2}%
+  \XR@next#2.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{%
+\def\f{#1}%\show\f
+\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@{%
+  \ifx#1\newlabel
+     \expandafter\protected@xdef\csname r@\XR@prefix#2\endcsname
+       {\XR@addURL{#3}}%
+  \else\ifx#1\@input
+     \edef\XR@list{\XR@list\filename@area#2\relax}%
+  \fi\fi
+  \ifeof\@inputcheck\expandafter\XR@aux
+  \else\expandafter\XR@read\fi}
+
+\providecommand*{\XR@addURL}[1]{#1}
+% The above definition doesn't actually use the URL, hyperref 6 could
+% make a definition like so to put the URL in the fifth field of its
+% ref structure.
+
+\@ifpackageloaded{hyperref}{%
+  \PackageWarningNoLine{xr-hyper}{Load package `hyperref' after `xr-hyper'}%
+}{}
+
+%\def\XR@addURL#1{\XR@@dURL#1{}{}{}{}\\}
+
+%\def\XR@@dURL#1#2#3#4#5\\{%
+%  {#1}{#2}%
+%  \if!#4!%
+%  \else
+%    {#3}{#4}{\XR@URL}%
+%  \fi
+%}
+
+\providecommand\XR@ext{dvi}
+
+\endinput
+%%
+%% End of file `xr.sty'.
+
+