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%% stabular.sty
%% Copyright 1998 Sigitas Tolu\v sis
%% VTeX Ltd., Akademijos 4, Vilnius, Lithuania
%% e-mail sigitas@vtex.lt
%% http://www.vtex.lt/tex/download/macros/
%%
% This program can redistributed and/or modified under the terms
% of the LaTeX Project Public License Distributed from CTAN
% archives in directory macros/latex/base/lppl.txt; either
% version 1 of the License, or (at your option) any later version.
%
% PURPOSE: Improve tabular environment.
%
% SHORT DESCRIPTION:
%
% Changed internal commands: \@mkpream, \@addamp, \@xhline
%
% Provides new commands in tabular (used after command \\):
% \emptyrow[#1]
% -------------
% Adds empty row, #1 - height of the row
%
% \tabrow{#1}[#2]
% ---------------
% Adds row of natural height: #1\\[#2]
%
% Provides new environments: stabular and stabular*
% -------- ---------
% One more multi-page version of tabular
%
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{stabular}[1998/03/19]
%
\def\empty@finalstrut#1{%
\unskip\ifhmode\nobreak\fi\vrule\@width\z@\@height\z@\@depth\z@}
\def\no@strut{\global\setbox\@arstrutbox\hbox{%
\vrule \@height\z@
\@depth\z@
\@width\z@}%
\gdef\@endpbox{\empty@finalstrut\@arstrutbox\par\egroup\hfil}%
}%
\def\yes@strut{\global\setbox\@arstrutbox\hbox{%
\vrule \@height\arraystretch \ht\strutbox
\@depth\arraystretch \dp\strutbox
\@width\z@}%
\gdef\@endpbox{\@finalstrut\@arstrutbox\par\egroup\hfil}%
}%
\def\@mkpream#1{\@firstamptrue\@lastchclass6
\let\@preamble\@empty\def\empty@preamble{\add@ins}%
\let\protect\@unexpandable@protect
\let\@sharp\relax\let\add@ins\relax
\let\@startpbox\relax\let\@endpbox\relax
\@expast{#1}%
\expandafter\@tfor \expandafter
\@nextchar \expandafter:\expandafter=\reserved@a\do
{\@testpach\@nextchar
\ifcase \@chclass \@classz \or \@classi \or \@classii \or \@classiii
\or \@classiv \or\@classv \fi\@lastchclass\@chclass}%
\ifcase \@lastchclass \@acol
\or \or \@preamerr \@ne\or \@preamerr \tw@\or \or \@acol \fi}
\def\@addamp{%
\if@firstamp
\@firstampfalse
\edef\empty@preamble{\add@ins}%
\else
\edef\@preamble{\@preamble &}%
\edef\empty@preamble{\expandafter\noexpand\empty@preamble &\add@ins}%
\fi}
\newif\iftw@hlines \tw@hlinesfalse
\def\@xhline{\ifx\reserved@a\hline
\tw@hlinestrue
\else\ifx\reserved@a\Hline
\tw@hlinestrue
\else
\tw@hlinesfalse
\fi\fi
\iftw@hlines
\aftergroup\do@after
\fi
\ifnum0=`{\fi}%
}
\def\do@after{\emptyrow[\the\doublerulesep]}
\def\emptyrow{\noalign\bgroup\@ifnextchar[\@emptyrow{\@emptyrow[\z@]}}
\def\@emptyrow[#1]{\no@strut\gdef\add@ins{\vrule \@height\z@ \@depth#1 \@width\z@}\egroup%
\empty@preamble\\
\noalign{\yes@strut\gdef\add@ins{\vrule \@height\z@ \@depth\z@ \@width\z@}}%
}
\def\tabrow#1{\noalign\bgroup\@ifnextchar[{\@tabrow{#1}}{\@tabrow{#1}[]}}
\def\@tabrow#1[#2]{\no@strut\egroup#1\ifx.#2.\\\else\\[#2]\fi\noalign{\yes@strut}}
%
\def\endstabular{\crcr\egroup\egroup \egroup}
\expandafter \let \csname endstabular*\endcsname = \endstabular
\def\stabular{\let\@halignto\@empty\@stabular}
\@namedef{stabular*}#1{\def\@halignto{to#1}\@stabular}
\def\@stabular{\leavevmode \bgroup \let\@acol\@tabacol
\let\@classz\@tabclassz
\let\@classiv\@tabclassiv \let\\\@tabularcr\@stabarray}
\def\@stabarray{\m@th\@ifnextchar[\@sarray{\@sarray[c]}}
\def\@sarray[#1]#2{%
\bgroup
\setbox\@arstrutbox\hbox{%
\vrule \@height\arraystretch\ht\strutbox
\@depth\arraystretch \dp\strutbox
\@width\z@}%
\@mkpream{#2}%
\edef\@preamble{%
\ialign \noexpand\@halignto
\bgroup \@arstrut \@preamble \tabskip\z@skip \cr}%
\let\@startpbox\@@startpbox \let\@endpbox\@@endpbox
\let\tabularnewline\\%
% \let\par\@empty
\let\@sharp##%
\set@typeset@protect
\lineskip\z@skip\baselineskip\z@skip
\@preamble}
\endinput
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