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%D \module
%D [ file=m-maybe,
%D version=2018.07.26,
%D title=\CONTEXT\ Extra Modules,
%D subtitle=Maybe some day,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
%D The code here is not in the core and might never be as it's probably not
%D of much use and|/|or can interfere.
\unprotect
% \showframe
% \starttext
% \tweakpagegoal[-\lineheight]
% \dorecurse{40}{\inleftmargin{!}\input ward\par}
% \stoptext
\def\page_scale_text_box_indeed#1%
{\scratchheight\ht#1\relax
\scratchwidth \wd#1\relax
\setbox#1\vpack\bgroup
\hpack\bgroup
\scale
[\c!height=\dimexpr\textheight-\d_page_adapts_delta\relax,
\c!width=\scratchwidth]
{\box#1}%
\egroup
\egroup
\global\d_page_adapts_delta\zeropoint
\glet\page_scale_text_box\gobbleoneargument
\ht#1\scratchheight
\wd#1\scratchwidth}
\unexpanded\def\tweakpagegoal[#1]%
{\ifx\currentoutputroutine\s!singlecolumn
\global\d_page_adapts_delta\dimexpr#1\relax
\ifdim\d_page_adapts_delta=\zeropoint
\glet\page_scale_text_box\gobbleoneargument
\else
\glet\page_scale_text_box\page_scale_text_box_indeed
\fi
\else
\global\d_page_adapts_delta\zeropoint
\glet\page_scale_text_box\gobbleoneargument
\fi
\page_otr_command_set_vsize}
\protect
\endinput
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