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authorKarl Berry <karl@freefriends.org>2013-09-17 22:11:40 +0000
committerKarl Berry <karl@freefriends.org>2013-09-17 22:11:40 +0000
commit389d70f9a442ed180389f17c2586983b861528e9 (patch)
tree3f7df46aa197a6317469dc4d65edf623b3482fdd /Master/texmf-dist/tex/xelatex/bidi/plain-xetex-bidi.def
parentbdc62c04f9ae222f720432f1651df51fba21f7bb (diff)
bidi (17sep13)
git-svn-id: svn://tug.org/texlive/trunk@31682 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/tex/xelatex/bidi/plain-xetex-bidi.def')
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@@ -0,0 +1,107 @@
+%%
+%% This is file `plain-xetex-bidi.def'.
+%%
+%% ______________________________________
+%% Copyright © 2009–2013 Vafa Khalighi
+%%
+%% License information appended.
+%%
+%%
+\def\TeXXeTOn{\TeXXeTstate=1 }
+\def\TeXXeTOff{\TeXXeTstate=0 }
+\TeXXeTOn
+\def\usebox#1{\leavevmode\copy #1\relax}
+\def\bidi@RTL@everypar{\if@RTL{\setbox\z@\lastbox\beginR\ifvoid\z@\else\usebox\z@\fi}\fi}
+ \let\bidi@o@everypar=\everypar
+ \newtoks\bidi@n@everypar
+ \bidi@n@everypar\expandafter{\the\bidi@o@everypar}
+ \bidi@o@everypar{\bidi@RTL@everypar\the\bidi@n@everypar}
+ \let\everypar=\bidi@n@everypar
+\def\moreLRE{\bracetext \aftergroup\endL \beginL\@RTLfalse}
+\def\moreRLE{\bracetext \aftergroup\endR \beginR\@RTLtrue}
+\protected\def\hboxR{\hbox\bgroup
+ \everyhbox{%
+ \aftergroup\egroup
+ \everyhbox{}%
+ \beginR
+ \bgroup
+ \aftergroup\endR
+ \aftergroup\egroup
+ }\hbox}
+\protected\def\hboxL{\hbox\bgroup
+ \everyhbox{%
+ \aftergroup\egroup
+ \everyhbox{}%
+ \beginL
+ \bgroup
+ \aftergroup\endL
+ \aftergroup\egroup
+ }\hbox}
+\protected\def\vboxR{\vbox\bgroup
+ \everyvbox{%
+ \aftergroup\egroup
+ \everyvbox{}%
+ \@RTLtrue
+ \bgroup
+ \aftergroup\egroup
+ }\vbox}
+\protected\def\vboxL{\vbox\bgroup
+ \everyvbox{%
+ \aftergroup\egroup
+ \everyvbox{}%
+ \@RTLfalse
+ \bgroup
+ \aftergroup\egroup
+ }\vbox}
+\def\LTR{\par\@RTLfalse\@RTL@footnotefalse\hsize\linewidth\parshape\z@}
+\def\endLTR{\par}
+\def\RTL{\par\@RTLtrue\@RTL@footnotetrue\hsize\linewidth\parshape\z@}
+\def\endRTL{\par}
+\def\@ltr{\if@RTL\par\@RTLfalse\@RTL@footnotefalse\fi}
+\def\@rtl{\if@RTL\relax\else\par\@RTLtrue\@RTL@footnotetrue\fi}
+\def\setRTL{\@RTLtrue\@RTL@footnotetrue}
+\def\setLTR{\@RTLfalse\@RTL@footnotefalse}
+\let\unsetRTL=\setLTR
+\let\unsetLTR=\setRTL
+\let\LR=\LRE
+\let\RL=\RLE
+\def\@ensure@RTL#1{\if@RTL#1\else\RLE{#1}\fi}
+\def\@ensure@LTR#1{\if@RTL\LRE{#1}\else#1\fi}
+\let\@ensure@RL=\@ensure@RTL
+\let\@ensure@LR=\@ensure@LTR
+\def\@ensure@dir#1{\if@RTL\RLE{#1}\else{#1}\fi}
+\let\@ensure@maindir=\@ensure@dir
+\def\@@RTL{RTL}
+\def\@@LTR{LTR}
+\def\save@dir{\if@RTL\gdef\saved@@dir{RTL}\else\gdef\saved@@dir{LTR}\fi}
+\def\reset@dir{\ifx\saved@@dir\@@RTL\setRTL\else\ifx\saved@@dir\@@LTR\setLTR\else\relax\fi\fi}
+\let\@@TeX\TeX
+\def\TeX{\@ensure@LTR{\@@TeX}}
+\def\reflect#1{{\setbox0=\hbox{#1}\rlap{\kern0.5\wd0
+ \special{x:gsave}\special{x:scale -1 1}}\box0 \special{x:grestore}}}
+\def\XeTeX{\LR{\leavevmode$\smash{\hbox{X\lower.5ex
+ \hbox{\kern-.125em\reflect{E}}\kern-.1667em \TeX}}$}}
+\let\setRL=\setRTL
+\let\setLR=\setLTR
+\let\unsetRL=\setLTR
+\let\bidi@saved@eqno=\eqno
+\let\bidi@saved@leqno=\leqno
+\def\eqno{\ifnum\predisplaydirection<\z@ \bidi@saved@leqno \else \bidi@saved@eqno \fi}
+\def\leqno{\ifnum\predisplaydirection<\z@ \bidi@saved@eqno \else \bidi@saved@leqno \fi}
+\def\centerline#1{\line{\hss\if@RTL\beginR\fi#1\if@RTL\endR\fi\hss}}
+\def\leftline#1{\line{\if@RTL\beginR\fi#1\if@RTL\endR\fi\hss}}
+\def\rightline#1{\line{\hss\if@RTL\beginR\fi#1\if@RTL\endR\fi}}
+%%
+%% Copyright © 2009–2013 Vafa Khalighi <vafakh@me.com>
+%%
+%% It may be distributed and/or modified 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 “maintained” (as per LPPL maintenance status)
+%% by Vafa Khalighi.
+%%
+%%
+%%
+%%
+%% End of file `plain-xetex-bidi.def'.