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%D \module
%D [ file=typo-adj,
%D version=2021.11.02,
%D title=\CONTEXT\ Typesetting Macros,
%D subtitle=Adjusters,
%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.
% This is preliminary (mostly test) code ... for it to be useful we also need to
% add some spacing options as well as penalty control. So far I never needed this
% but who knows.
\writestatus{loading}{ConTeXt Typesetting Macros / Adjusters}
\registerctxluafile{typo-adj}{autosuffix}
% \definesystemattribute[adjuster][public]
% Musical timestamp: the announcement of the new Porcupine Tree album: Closure /
% Continuation and the related upcoming tour. They're back!
\unprotect
%D \starttyping
%D \start \showboxes
%D \dorecurse{20}{test #1 }
%D \insertlinebefore{BEFORE 1}
%D \insertlineafter {AFTER 1}
%D \dorecurse{20}{test #1 }
%D \dorecurse{20}{test #1 }
%D \insertlinebefore{BEFORE 2}
%D \insertlineafter {AFTER 2}
%D \dorecurse{20}{test #1 }
%D \stop
%D \stoptyping
\def\typo_adjusters_line#1% no need for speed
{\begingroup
\dowithnextbox
{\ht\nextbox\strutht
\dp\nextbox\strutdp
%\boxattribute\nextbox \adjusterattribute \plusone
\vadjust #1 index \plusone {\box\nextbox}%
\endgroup}%
\hbox}
\tolerant\def\typo_adjusters_blank#1[#2]% no need for speed
{\begingroup
% \setbox\scratchbox\vbox{\ifcstok{#2}\emptytoks\blank\else\blank[#2]\fi}%
\setbox\scratchbox\vbox{\blank[#2]}%
\vadjust #1 index \plustwo {\vskip\htdp\scratchbox}%
\endgroup}
\permanent\protected\def\insertlinebefore{\typo_adjusters_line{pre}}
\permanent\protected\def\insertlineafter {\typo_adjusters_line{post}}
\permanent\protected\def\insertblankbefore{\typo_adjusters_blank{pre}}
\permanent\protected\def\insertblankafter {\typo_adjusters_blank{post}}
\protect \endinput
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