%%
%% This is file `amsbook-xetex-bidi.def',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% bidi.dtx  (with options: `amsbook-xetex-bidi.def')
%% 
%%   ______________________________________
%%   Copyright © 2009–2010  Vafa Khalighi
%% 
%%   License information appended.
%% 
%% 
\ProvidesFile{amsbook-xetex-bidi.def}[2010/07/25 v0.7 bidi adaptations for amsbook class for XeTeX engine]
\def\@tocline#1#2#3#4#5#6#7{\relax
  \ifnum #1>\c@tocdepth % then omit
  \else
    \par \addpenalty\@secpenalty\addvspace{#2}%
    \begingroup \hyphenpenalty\@M
    \@ifempty{#4}{%
      \@tempdima\csname r@tocindent\number#1\endcsname\relax
    }{%
      \@tempdima#4\relax
    }%
    \parindent\z@ \if@RTL\rightskip\else\leftskip\fi#3\relax \advance\if@RTL\rightskip\else\leftskip\fi\@tempdima\relax
    \if@RTL\leftskip\else\rightskip\fi\@pnumwidth plus4em \parfillskip-\@pnumwidth
    #5\leavevmode\hskip-\@tempdima #6\nobreak\relax
    \hfil\hbox to\@pnumwidth{\@tocpagenum{#7}}\par
    \nobreak
    \endgroup
  \fi}
\renewcommand\thesubsection    {\thesection\@SepMark\arabic{subsection}}
\renewcommand\thesubsubsection {\thesubsection \@SepMark\arabic{subsubsection}}
\renewcommand\theparagraph     {\thesubsubsection\@SepMark\arabic{paragraph}}
\renewcommand\thesubparagraph  {\theparagraph\@SepMark\arabic{subparagraph}}
\def\theindex{\@restonecoltrue\if@twocolumn\@restonecolfalse\fi
  \columnseprule\z@ \columnsep 35\p@
  \@indextitlestyle
  \thispagestyle{plain}%
  \let\item\@idxitem
  \parindent\z@  \parskip\z@\@plus.3\p@\relax
  \if@RTL\raggedleft\else\raggedright\fi
  \hyphenpenalty\@M
  \footnotesize}
\def\right@footnote{%
  \hbox to \columnwidth
  {\beginR \vbox{\kern-.4\p@
        \hrule\@width 5pc\kern11\p@\kern-\footnotesep}\hfil\endR}}
\def\left@footnote{\kern-.4\p@
        \hrule\@width 5pc\kern11\p@\kern-\footnotesep}
\long\def\@footnotetext#1{%
    \begingroup
    \setbox\footins
    \vbox{\if@RTL@footnote\@RTLtrue\else\@RTLfalse\fi\reset@font\footnotesize
    \interlinepenalty\interfootnotelinepenalty
    \splittopskip\footnotesep
    \splitmaxdepth \dp\strutbox \floatingpenalty \@MM
    \hsize\columnwidth \@parboxrestore \parindent\normalparindent \sloppy
    \bidi@footnotetext@dir{#1}%
    \protected@edef\@currentlabel{\csname p@footnote\endcsname\@thefnmark}\@makefntext
    {\rule{\z@}{\footnotesep}\ignorespaces#1\unskip\strut\par}}%
     \bidi@footnotetext@after
    \insert\footins{\unvbox\footins}%
    \endgroup}
\long\def\@RTLfootnotetext#1{%
    \begingroup
    \setbox\footins
    \vbox{\@RTLtrue\reset@font\footnotesize
    \interlinepenalty\interfootnotelinepenalty
    \splittopskip\footnotesep
    \splitmaxdepth \dp\strutbox \floatingpenalty \@MM
    \hsize\columnwidth \@parboxrestore \parindent\normalparindent \sloppy
    \bidi@footnotetext@dir{#1}%
    \protected@edef\@currentlabel{\csname p@footnote\endcsname\@thefnmark}\@makefntext
    {\rule{\z@}{\footnotesep}\ignorespaces #1\unskip\strut\par}}%
     \bidi@footnotetext@after
    \insert\footins{\unvbox\footins}%
    \endgroup}
\long\def\@LTRfootnotetext#1{%
    \begingroup
    \setbox\footins
    \vbox{\@RTLfalse\reset@font\footnotesize
    \interlinepenalty\interfootnotelinepenalty
    \splittopskip\footnotesep
    \splitmaxdepth \dp\strutbox \floatingpenalty \@MM
    \hsize\columnwidth \@parboxrestore \parindent\normalparindent \sloppy
    \bidi@footnotetext@dir{#1}%
    \protected@edef\@currentlabel{\csname p@footnote\endcsname\@thefnmark}\@makefntext
    {\rule{\z@}{\footnotesep}\ignorespaces #1\unskip\strut\par}}%
     \bidi@footnotetext@after
    \insert\footins{\unvbox\footins}%
    \endgroup}
\renewenvironment{thebibliography}[1]{%
  \@bibtitlestyle
  \normalfont\bibliofont\labelsep .5em\relax
  \renewcommand\theenumiv{\arabic{enumiv}}\let\p@enumiv\@empty
  \if@RTL\if@LTRbibitems\@RTLfalse\else\fi\else\if@RTLbibitems\@RTLtrue\else\fi\fi
  \list{\@biblabel{\theenumiv}}{\settowidth\labelwidth{\@biblabel{#1}}%
    \leftmargin\labelwidth \advance\leftmargin\labelsep
    \usecounter{enumiv}}%
  \sloppy \clubpenalty\@M \widowpenalty\clubpenalty
  \sfcode`\.=\@m
}{%
  \def\@noitemerr{\@latex@warning{Empty `thebibliography' environment}}%
  \endlist
}
\def\@makechapterhead#1{\global\topskip 7.5pc\relax
  \begingroup
  \fontsize{\@xivpt}{18}\bfseries\centering
    \ifnum\c@secnumdepth>\m@ne
      \leavevmode \hskip-\if@RTL\rightskip\else\leftskip\fi
      \rlap{\vbox to\z@{\vss
          \centerline{\normalsize\mdseries
              \uppercase\@xp{\chaptername}\enspace\thechapter}
          \vskip 3pc}}\hskip\if@RTL\rightskip\else\leftskip\fi\fi
     #1\par \endgroup
  \skip@34\p@ \advance\skip@-\normalbaselineskip
  \vskip\skip@ }
%% 
%% Copyright © 2009–2010  Vafa Khalighi <vafakhlgh@gmail.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 “author-maintained” (as per LPPL maintenance status)
%% by Vafa Khalighi.
%% 
%% In addition to the terms of LPPL any distributed version
%% (unchanged or modified) of bidi has to keep the statement
%% about the moral obligation for using bidi. In case of major
%% changes where this would not be appropriate the author of the
%% changed version should contact the copyright holder.
%% 
%% 
%% 
%% Moral obligation for using bidi:
%% ____________________________________
%% 
%% Users of bidi who wish to include or use bidi or a modified
%% version in a proprietary and commercially market product are asked
%% under certain conditions (see below) for the payment of a license
%% fee.  The size of this fee is to be determined, in each instance,
%% by the commercial user, depending on his/her judgment of the value of
%% bidi for his/her product.
%% 
%% 
%% The conditions for this are as follows:
%% 
%% The producer of a proprietary and commercially market product
%% that involves typesetting using bidi is asked to determine
%% the value of a license fee for using bidi if
%% 
%%    - the product is a document and the producer has decided to
%%      include bidi to typeset (parts of) the document or has
%%      directed the author of the document to include bidi (for
%%      example, by providing a class file to be used by the author)
%% 
%%    - the product is a LaTeX class or package that includes bidi
%% 
%% 
%% There is no moral obligation in case
%% 
%%    - the product is a document but producer has not directed
%%      the author to include bidi (in that case the moral obligation
%%      lies with the author of the document)
%% 
%%    - the product does not involve typesetting, e.g., consists, for
%%      example, of distributing bidi and its documentation.
%% 
%%    - the product is not proprietary, i.e., is made available as free
%%      software itself (which doesn't prohibit its commercial marketing)
%% 
%%    - bidi is used for non-commercial purposes
%% 
%% 
%% Determinating a license fee might result in a license fee of zero
%% (i.e., no payment) in case a producer has determined that the use
%% of bidi has no enhancing effect on the product. This is a
%% plausible scenario, i.e., in the above two cases the producer is
%% only asked to evaluate the value of bidi for the product
%% not for the payment of a license fee per se (which might or might
%% not follow from this evaluation).
%% 
%%  The license fee, if any, can be payed to the author of
%%  the program who can be contacted at
%% 
%%      vafakhlgh@gmail.com
%% 
%% 
%% 
%%
%% End of file `amsbook-xetex-bidi.def'.
