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%D \module
%D [ file=attr-eff,
%D version=2007.06.06,
%D title=\CONTEXT\ Attribute Macros,
%D subtitle=Effects,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright=PRAGMA-ADE]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\writestatus{loading}{ConTeXt Attribute Macros / Effects}
\registerctxluafile{attr-eff}{1.001}
\unprotect
\def\registereffect#1#2#3% #2=stretch #3=rulethickness
{\setxvalue{(es:#1:#2:\number\dimexpr#3\relax)}%
{\attribute\effectattribute\ctxlua{tex.write(attributes.effects.register('#1',#2,\number\dimexpr#3\relax))}\relax}}
\def\dotriggereffect
{\ctxlua{attributes.effects.enable()}%
\gdef\dotriggereffect##1##2##3%
{\ifcsname(es:##1:##2:\number\dimexpr##3\relax)\endcsname\else\registereffect{##1}{##2}{##3}\fi
\csname(es:##1:##2:\number\dimexpr##3\relax)\endcsname}%
\dotriggereffect}
% \registereffect{normal}
% \registereffect{inner}
% \registereffect{outer}
% \registereffect{both}
% \registereffect{hidden}
\protect \endinput
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