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% \iffalse meta-comment
%
% Copyright 2006 Youssef Jabri
%
%
% This file is part of the `Arabi' system.
% -------------------------------------------
%
% It may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3b
% 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 1.3b or later is part of all distributions of LaTeX
% version 2005/12/01 or later.
%
% This file has the LPPL maintenance status "maintained".
%
%
% \fi
%
% Filename: poetry.sty
%%%%%%%%%%%%%%%%%%%%%%%% poetry %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% \def \setversedim #1#2 % set length of half-verse, separation
% \def \halfverses #1#2 % first half-verse, second half-verse (boyh are in arabic)
% \def \connverses #1#2#3 % first half-verse, connection, second half-verse
%
% 04.10.2005
%
% avoids loading twice
\expandafter \ifx \csname ar@poetry\endcsname \relax \else
\expandafter \endinput \fi
\def\ar@poetry{\relax}
\ProvidesFile{poetry.sty}
[2005/10/04 v0.1 Arabic poetry]
%%%%%%%%%%%%%% A slight modification of the halfverses Macro %%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%% from the ArabTeX package by K. Lagally. %%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%% verses.sty %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% verses.sty
% utility for ArabTeX
% macros for typesetting Arabic verses in two columns
% usage: load as a package or after loading ArabTeX
% provides:
% \def \setversedim #1#2{% set length of half-verse, separation
% \def \halfverses #1#2{% first half-verse, second half-verse
% \def \connverses #1#2#3{% first half-verse, connection, second half-verse
% use within an Arabic environment
% 28.03.1998
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% (c) Klaus Lagally
% Institut fuer Informatik
% Universitaet Stuttgart
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Macro "borrowed" from the Midnight bundle.
%% From the Macro \border ...
%%
%%%%%%% exactly fitting border with overlaps
% \border makes a border of the specified dimensions, by overlapping some
% of the elements when necessary.
% \hborder takes four arguments, the width, and the indices of the left
% element, the middle element, and the right element. It makes an horizontal
% border of the form \hbox to wd{ l m+ r }, where there is at least one m.
% If wd is large enough to set at least {l m r}, all overlap is between
% elements of type m. In the unusual case where wd is too small, the overlap
% is necessarily with the corner elements.
%
%\def\hborder#1#2#3#4% wd, l, m, r
% {\hbox to#1
% {\setbox0=\hbox{\borderelm#3}%
% \borderelm#2%
% \hskip0pt minus1fil %
% \copy0\kern-.5\wd0 %
% \cleaders\copy0\hskip0pt plus1fil %
% \kern-.5\wd0\copy0 %
% \hskip0pt minus1fil %
% \borderelm#4%
% }%
% }
%
\DeclareRobustCommand{\Spreadbox}[2]{\bgroup%
\setbox0=\hbox{{\if@farsi\fontencoding{LFE}\else\fontencoding{LAE}\fi\selectfont\keshchar}}
\renewcommand{\tatweel}{%
\noboundary\nobreak%
\hskip0pt% minus1fil %
\copy0\kern-.5\wd0 %
\cleaders\copy0\hskip0pt plus1fil %
\kern-.5\wd0\copy0 %
\hskip0pt% minus1fil %
\nobreak\noboundary}
%
\parbox{#1}{\hbox to #1{\if@farsi\FR{#2}\else\AR{#2}\fi}}\egroup}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newdimen \a@hvlen
\newdimen \a@hvsep
\newdimen \a@hvind
% define some verse dimensions, verses will be centered
\def \setversedim #1#2{% set length of half-verse, separation
\a@hvlen #1\relax \a@hvsep #2\relax
\a@hvind \hsize \advance \a@hvind -\a@hvsep
\divide \a@hvind 2 \advance \a@hvind -\a@hvlen }
%strut for the Arabic font Traditional Arabic if vowels are used!
%\def\astrut{\rule[-.3cm]{0cm}{8.5mm}}
\def\astrut{\hbox{\ArabiStrut}}
%%
%% better to use instead of \hfil --> \hspace*{\stretch{1}}?
%%
% macro for a verse with a connection
\def \Connverses #1#2#3{% first half-verse + strut, connection, second half-verse
\noindent \hspace \a@hvind \astrut
\Spreadbox \a@hvlen {#1}% first block
%\Spreadbox \a@hvsep {\hfill #2\hfill}% separator
\Spreadbox \a@hvsep {\hspace*{\stretch{1}} #2\hspace*{\stretch{1}}}% separator
\Spreadbox \a@hvlen {#3}% second block
\par }
% macro for two half verses
\def \Halfverses #1#2{% normal case
%\Connverses {#1}{\hfill}{#2}}
\Connverses {#1}{\hspace*{\stretch{1}}}{#2}}
\endinput
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