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%D \module
%D [ file=prop-mis,
%D version=2004.05.29, % some code moved from private modules
%D title=\CONTEXT\ Property Macros,
%D subtitle=Miscelaneous,
%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.
\writestatus{loading}{ConTeXt Property Macros / Miscelaneous}
%D This module contains some code that has been in use in some
%D private modules (p-*). These features depend on the fact
%D that pdftex writes the page content as one stream.
%D EXPERIMENTAL
\unprotect
% D Overprint cum suis.
%
% \defineproperty[\v!overprint][\s!overprint] [\c!method=\v!command]
% \defineproperty[\v!knockout] [\s!overprint] [\c!method=\v!command]
%
% \definepropertyhandler \v!overprint {\dotriggeroverprint\v!overprint}
% \definepropertyhandler \v!knockout {\dotriggeroverprint\v!knockout }
%
% \unexpanded\def\startoverprintproperty{\dotriggeroverprint\v!overprint}
% \unexpanded\def\stopoverprintproperty {\dotriggeroverprint\v!knockout }
%D Negative cum suis.
\defineproperty [\v!negative] [\s!negative] [\c!method=\v!command]
\defineproperty [\v!positive] [\s!negative] [\c!method=\v!command]
\definepropertyhandler \v!negative {\dotriggernegative\v!negative}
\definepropertyhandler \v!positive {\dotriggernegative\v!positive}
\unexpanded\def\startnegativeproperty{\dotriggernegative\v!negative}
\unexpanded\def\stopnegativeproperty {\dotriggernegative\v!positive}
%D Special font effects.
\setupproperty
[\s!effect]
[\c!rulethickness=\zeropoint,
\c!stretch=0]
\defineproperty [\v!inner] [\s!effect] [\c!rulethickness=.25pt]
\defineproperty [\v!outer] [\s!effect] [\c!rulethickness=.25pt]
\defineproperty [\v!both] [\s!effect] [\c!rulethickness=.25pt]
\defineproperty [\v!normal] [\s!effect]
\defineproperty [\v!hidden] [\s!effect]
\defineproperty [\v!stretch] [\s!effect] [\c!stretch=1]
\def\mktriggereffect#1%
{\dotriggereffect{#1}{\propertyparameter{#1}\c!stretch}{\propertyparameter{#1}\c!rulethickness}}
\definepropertyhandler \v!normal {\mktriggereffect\v!normal}
\definepropertyhandler \v!inner {\mktriggereffect\v!inner }
\definepropertyhandler \v!outer {\mktriggereffect\v!outer }
\definepropertyhandler \v!both {\mktriggereffect\v!both }
\definepropertyhandler \v!hidden {\mktriggereffect\v!hidden}
\definepropertyhandler \v!stretch{\mktriggereffect\v!normal}
\unexpanded\def\starteffectproperty{\mktriggereffect\currentproperty}
\unexpanded\def\stopeffectproperty {\mktriggereffect\v!normal }
\protect \endinput
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