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Filename : fontspec-patches.sty
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%%
%% This is file `fontspec-patches.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% fontspec.dtx  (with options: `patches')
%% 
%%   _________________________________________
%%   The fontspec package for XeLaTeX/LuaLaTeX
%%   (C) 2004--2013    Will Robertson and Khaled Hosny
%% 
%%   License information appended.
%% 
%% 
\ProvidesPackage{fontspec-patches}
  [2013/03/16 v2.3a Font selection for XeLaTeX and LuaLaTeX]


\ExplSyntaxOn
\RequirePackage{fixltx2e}[2006/03/24]
\DeclareRobustCommand \em
 {
  \@nomath\em
  \str_if_eq_x:nnTF \f@shape \itdefault \eminnershape
  {
    \str_if_eq_x:nnTF \f@shape \sldefault \eminnershape \emshape
  }
 }
\DeclareTextFontCommand{\emph}{\em}
\cs_set_eq:NN \emshape \itshape
\cs_set_eq:NN \eminnershape \upshape
\DeclareRobustCommand{\-}
 {
  \discretionary
   {
    \char\ifnum\hyphenchar\font<\z@
           \xlx@defaulthyphenchar
         \else
           \hyphenchar\font
         \fi
   }{}{}
 }
\def\xlx@defaulthyphenchar{`\-}
\cs_new:Nn \fontspec_visible_space:
 {
  \font_glyph_if_exist:NnTF \font {"2423}
   { \char"2423\scan_stop: }
   { \fontspec_visible_space_fallback: }
 }
\cs_new:Nn \fontspec_visible_space_fallback:
 {
  {
   \usefont{\g_fontspec_encoding_tl}{lmtt}{\f@series}{\f@shape}
   \textvisiblespace
  }
 }
\group_begin:
\char_set_catcode_active:n{"20}%
\cs_gset:Npn\fontspec_print_visible_spaces:{%
\char_set_catcode_active:n{"20}%
\cs_set_eq:NN^^20\fontspec_visible_space:%
}%
\group_end:
\def\verb
 {
  \relax\ifmmode\hbox\else\leavevmode\null\fi
  \bgroup
    \verb@eol@error \let\do\@makeother \dospecials
    \verbatim@font\@noligs
    \@ifstar\__fontspecsverb\@verb
 }
\def\__fontspecsverb{\fontspec_print_visible_spaces:\@sverb}
\AtBeginDocument
 {
  \fontspec_patch_verbatim:
  \fontspec_patch_moreverb:
  \fontspec_patch_fancyvrb:
  \fontspec_patch_listings:
 }
\cs_set:Npn \fontspec_patch_verbatim:
 {
  \@ifpackageloaded{verbatim}
   {
    \cs_set:cpn {verbatim*}
     {
      \group_begin: \@verbatim \fontspec_print_visible_spaces: \verbatim@start
     }
   }
   {
    \cs_set:cpn {verbatim*}
     {
      \@verbatim \fontspec_print_visible_spaces: \@sxverbatim
     }
   }
 }
\cs_set:Npn \fontspec_patch_moreverb:
 {
  \@ifpackageloaded{moreverb}{
    \cs_set:cpn {listingcont*}
     {
      \cs_set:Npn \verbatim@processline
       {
        \thelisting@line \global\advance\listing@line\c_one
        \the\verbatim@line\par
       }
      \@verbatim \fontspec_print_visible_spaces: \verbatim@start
     }
  }{}
 }
\cs_set:Npn \fontspec_patch_fancyvrb:
 {
  \@ifpackageloaded{fancyvrb}
   {
    \cs_set_eq:NN \FancyVerbSpace \fontspec_visible_space:
   }{}
 }
\cs_set:Npn \fontspec_patch_listings:
 {
  \@ifpackageloaded{listings}
   {
    \cs_set_eq:NN \lst@visiblespace \fontspec_visible_space:
   }{}
 }
\RenewDocumentCommand \oldstylenums {m}
 {
  { \addfontfeature{Numbers=OldStyle} #1 }
 }
\NewDocumentCommand \liningnums {m}
 {
  { \addfontfeature{Numbers=Lining} #1 }
 }
%% 
%% Copyright 2004--2013 Will Robertson <wspr81@gmail.com>
%% Copyright 2009--2013   Khaled Hosny <khaledhosny@eglug.org>
%% 
%% Distributable under the LaTeX Project Public License,
%% version 1.3c or higher (your choice). The latest version of
%% this license is at: http://www.latex-project.org/lppl.txt
%% 
%% This work is "author-maintained" by Will Robertson.
%% 
%% This work consists of this file fontspec.dtx
%%           and the derived files fontspec.sty,
%%                                 fontspec.lua,
%%                                 fontspec.cfg,
%%                                 fontspec-xetex.tex,
%%                                 fontspec-luatex.tex,
%%                             and fontspec.pdf.
%% 
%%
%% End of file `fontspec-patches.sty'.