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%D \module
%D [ file=core-spa,
%D version=1997.03.31,
%D title=\CONTEXT\ Core Macros,
%D subtitle=Spacing,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\unprotect
% Just after we implemented the \MKIV\ code, Thanh posted a patch for
% \PDFTEX. The following code is untested! (\LUATEX\ does not contain
% this code!)
\ifx\pdfkeeplinedimen\undefined
\let\mksetupgridsnapping \relax
\let\mkenablegridsnapping \relax
\let\mkdisablegridsnapping\relax
\else
\def\mksetupgridsnapping
{\pdfeachlineheight \openstrutheight
\pdfeachlinedepth \openstrutdepth
\pdffirstlineheight \pdfeachlineheight
\pdflastlinedepth \pdfeachlinedepth}
\def\mkenablegridsnapping
{\pdfkeeplinedimen\maxdimen
\topskip\strutht
\offinterlineskip}
\def\mkdisablegridsnapping
{\pdfkeeplinedimen\zeropoint
% reset topskip
\oninterlineskip}
\fi
\protect \endinput
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