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%D \module
%D [ file=core-var,
%D version=1998.02.21,
%D title=\CONTEXT\ Core Macros,
%D subtitle=Variables,
%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.
\writestatus{loading}{ConTeXt Core Macros / Variables}
\unprotect
%D Much of this will move to *-ini files.
%D We introduce a couple of variables that are used all over
%D \CONTEXT. Alternatively we could define them in each module
%D but as they are part of the bigger picture we prefer to do
%D it here.
%D \macros
%D {every...}
%D
%D A few every's. Some are only used in \MKII\ or \MKIV.
%D Output routine:
\newtoks \everybeforeoutput
\newtoks \everyafteroutput
%D Shipout:
\newtoks \everyshipout
\newtoks \everybeforeshipout
\newtoks \everyaftershipout
\newtoks \everyfirstshipout
\newtoks \everylastshipout
%D End of run:
\newtoks \everybye
\newtoks \everygoodbye
\newtoks \everynotabene
%D Document
\newtoks \everysetupdocument
\newtoks \everyendoftextbody
\newtoks \everystarttext
\newtoks \everystoptext
%D Purity:
\newtoks \everyforgetall
\newtoks \everycleanupfeatures
\def\cleanupfeatures{\the\everycleanupfeatures}
\def\forgetall {\the\everyforgetall}
%D Page building:
\newtoks \everybeforepagebody
\newtoks \everyafterpagebody
\let \everypagebody \everybeforepagebody % backward compatible, will become obsolete
%D Floats:
\newtoks \everyinsidefloat
%D Sectioning:
\newtoks \everyheadstart
%D Par building (experimental, used in xml <p> .. </p>)
\newtoks \everybeginofpar
\newtoks \everyendofpar
%newtoks \everyparflush
\unexpanded\def\bpar{\dostarttagged\t!paragraph\empty\the\everybeginofpar\ignorespaces} % may interfere with \everypar
\unexpanded\def\epar{\ifhmode\removeunwantedspaces\the\everyendofpar\fi\dostoptagged } % test prevents problems with \bpar\epar
%D Lists:
\newtoks \everylistentry
\newtoks \everysavesortkeys
%D Marks:
\newtoks \everymarking
%D Fonts:
\newtoks \everyfont
\newtoks \everyglobalbodyfont
\newtoks \everydefinedfont
\newevery \everybodyfont \EveryBodyFont
\newevery \everyfontswitch \EveryFontSwitch
\newtoks \everysetupbodyfont
\newtoks \everyswitchtobodyfont
%D Math:
\newtoks \everybeforedisplayformula
\newtoks \everymathematics
\prependtoks \the\everymathematics \to \everymath
\prependtoks \the\everymathematics \to \everydisplay
%D Tables
\newtoks \everytable
%D State mess:
\newtoks \everypushsomestate
\newtoks \everypopsomestate
\def\pushsomestates{\the\everypushsomestate}
\def\popsomestates {\the\everypopsomestate }
%D More generic (used to be pushcolor etc)
\newtoks\everystarttextproperties
\newtoks\everystoptextproperties
\unexpanded\def\starttextproperties{\the\everystarttextproperties}
\unexpanded\def\stoptextproperties {\the\everystoptextproperties}
%D \macros
%D {trialtypesetting}
%D
%D We disable trial typesetting in the output routine,
%D just to be sure.
\prependtoks \resettrialtypesetting \to \everybeforepagebody
%D \macros
%D {ifinpagebody,ifinsidecolumns,ifdoublesided,ifsinglesided}
\newif \ifinpagebody
\newif \ifinsidecolumns
\newif \ifdoublesided \doublesidedfalse
\newif \ifsinglesided \singlesidedtrue
\newif \ifinsidefloat
\newif \ifdoingblocks
\newif \ifgridsnapping
%D \macros
%D {ifprocessingXML}
%D
%D We need this one even if no \XML\ is supported.
% \newif\ifprocessingXML % old way
%D \macros
%D {ifproductionrun}
%D
%D This boolean can be used to bypass certain
%D initializations.
\newif\ifproductionrun \appendtoks \productionruntrue \to \everydump
%D \macros
%D {everyboxedcontent, ifboxedcontent,
%D startboxedcontent, stopboxedcontent}
%D
%D This one is relatively new and will be used as a more
%D robust test for inner situations.
\newif \ifboxedcontent
\newtoks\everyboxedcontent
\appendtoks \boxedcontenttrue \to \everyboxedcontent
\unexpanded\def\startboxedcontent{\bgroup\the\everyboxedcontent}
\let\stopboxedcontent \egroup
%D \macros
%D {fastmode,silentmode}
%D
%D These commands are obsolete.
\let\fastmode \relax
\let\silentmode\relax
%D \macros
%D {defineselector,setupselector}
%D
%D \starttyping
%D \defineselector[caption][max=2,n=2]
%D
%D \start
%D \setupselector[caption][n=1]
%D \placelist[figure][criterium=all]
%D \stop
%D
%D \starttext
%D \placefigure
%D {\select{caption}{zapf}{\input zapf \relax}}
%D {}
%D \stoptext
%D \stoptyping
\unexpanded\def\defineselector{\dodoubleargument\dodefineselector}
\unexpanded\def\setupselector {\dodoubleargument\dosetupselector}
\def\dodefineselector[#1][#2]{\getparameters[\??sx#1][\c!max=2,\c!n=1,#2]}
\def\dosetupselector [#1][#2]{\getparameters[\??sx#1][#2]}
\unexpanded\def\select#1%
{\filterfromnext
{\executeifdefined{\??sx#1\c!max}1}
{\executeifdefined{\??sx#1\c!n }1}}
%D We store some original meanings, maybe in \type
%D {math-ini}.
\let\normalat \at
\let\normalin \in
\let\normalfrom \from
%let\normalover \over
\let\normalabout\about
%D Add-ons:
\let\setlayoutcomponentattribute \gobbleoneargument
\let\resetlayoutcomponentattribute\relax
\let\layoutcomponentboxattribute \empty
\protect \endinput
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