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Diffstat (limited to 'tex/context/base/mkxl/strc-mar-old.mkxl')
-rw-r--r-- | tex/context/base/mkxl/strc-mar-old.mkxl | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/tex/context/base/mkxl/strc-mar-old.mkxl b/tex/context/base/mkxl/strc-mar-old.mkxl new file mode 100644 index 000000000..b2c421dbf --- /dev/null +++ b/tex/context/base/mkxl/strc-mar-old.mkxl @@ -0,0 +1,142 @@ +%D \module +%D [ file=strc-mar, +%D version=2008.10.20, +%D title=\CONTEXT\ Structure Macros, +%D subtitle=Markings, +%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 Structure Macros / Markings} + +\registerctxluafile{strc-mar-old}{autosuffix} + +\unprotect + +%D Synchronizing marks is a rather tricky and messy business. When setting a mark, a +%D node is added to the list in order for to \TEX\ be able to figure out the 3 +%D current marks when a page is made (last mark on previous page, first on current +%D page, last on current page; in \LUATEX\ we might at one point have the first on +%D the next page as well). +%D +%D Resetting a mark is not easy. An empty one will not erase the last one on the +%D previous page for instance. In \LUATEX\ we can clear a marks state register with +%D \type {\clearmarks} but since this is an immediate operation it might have +%D unwanted side effects when \TEX\ has collected several pages of text and +%D finishing off these pages uses marks. +%D +%D In \MKIV\ we provide an alternative model that permits some more control over the +%D way marks are used. It is not entirely compatible with \MKII\ or previous \MKIV\ +%D implementations but in practice this is not a real problem. It's also easier now +%D to extend this mechanism. + +% first last previous next top bottom [:nocheck] +% current +% default page all keep + +\definesystemattribute [marks] [global] + +\installcorenamespace{marking} + +\installcommandhandler \??marking {marking} \??marking + +\newconditional\inhibitgetmarking % will become private +\newconditional\inhibitsetmarking % will become private + +\newtoks \everymarking + +\appendtoks + \clf_definemarking{\currentmarking}{\currentmarkingparent}% +\to \everydefinemarking + +\permanent\protected\tolerant\def\relatemarking [#1]#*[#2]{\clf_relatemarking{#1}{#2}} +\permanent\protected\tolerant\def\resetmarking [#1]{\clf_resetmarking{#1}} +\permanent\protected\tolerant\def\synchronizemarking[#1]#*[#2]#*[#3]{\ifvoid#2\else\clf_synchronizemarking{#1}#2{#3}\fi} +\permanent \def\doifelsemarking #1{\clf_doifelsemarking{#1}} % no \noexpanded + +\aliased\let\clearmarking\resetmarking % different in the new situation + +\def\strc_markings_synchronize#1#2#3{\ifvoid#2\else\clf_synchronizemarking{#1}#2{#3}\fi} % called in page-ini + +\permanent\protected\tolerant\def\setmarking[#1]#:#2% + {\ifconditional\inhibitsetmarking\else + \doifelse{\namedmarkingparameter{#1}\c!expansion}\v!yes + {\clf_setmarking{#1}{#2}}% + {\clf_setmarking{#1}{\detokenize{#2}}}% + \fi} + +\aliased\let\marking \setmarking +\aliased\let\doifmarkingelse\doifelsemarking + +% defaults + +\setupmarking + [\c!expansion=\v!no, + \c!separator=\space\emdash\space, + \c!filtercommand=\firstofoneargument, + \c!state=\v!start] + +% fetching, regular interface + +\permanent\protected\def\getmarking + {\ifconditional\inhibitgetmarking + \expandafter\strc_markings_get_nop + \else + \expandafter\strc_markings_get_yes + \fi} + +\tolerant\def\strc_markings_get_nop[#-]#*[#-]#*[#-]% + {} + +\tolerant\def\strc_markings_get_yes[#1]#*[#2]#*[#3]% + {\ifcstok{\namedmarkingparameter{#1}\c!state}\v!start + \begingroup + \setsystemmode\v!marking + \the\everymarking + \ifparameter#3\or + \clf_getmarking{#1}{#2}{#3}% + \else + \clf_getmarking{#1}{\v!page}{#2}% + \fi + \endgroup + \fi} + +% the fetchers are fully expandable: [name][method] + +\permanent\tolerant\def\fetchonemark[#1]#*[#2]{\ifconditional\inhibitgetmarking\else\clf_fetchonemark {#1}{\v!page}{#2}\fi} +\permanent\tolerant\def\fetchtwomarks [#1]{\ifconditional\inhibitgetmarking\else\clf_fetchtwomarks{#1}{\v!page}\fi} +\permanent\tolerant\def\fetchallmarks [#1]{\ifconditional\inhibitgetmarking\else\clf_fetchallmarks{#1}{\v!page}\fi} + +\aliased\let\fetchmark\fetchonemark + +% also fully expandable but here we have: [name][range][method] + +\permanent\tolerant\def\fetchonemarking[#1]#*[#2]#*[#3]{\ifconditional\inhibitgetmarking\else\clf_fetchonemark {#1}{#2}{#3}\fi} +\permanent\tolerant\def\fetchtwomarkings [#1]#*[#2]{\ifconditional\inhibitgetmarking\else\clf_fetchtwomarks{#1}{#2}\fi} +\permanent\tolerant\def\fetchallmarkings [#1]#*[#2]{\ifconditional\inhibitgetmarking\else\clf_fetchallmarks{#1}{#2}\fi} + +\aliased\let\fetchmarking\fetchonemarking + +\permanent\def\markingseparator#1{\namedmarkingparameter{#1}\c!separator} +\permanent\def\markingcommand #1{\namedmarkingparameter{#1}\c!filtercommand} + +%D Experimental: +%D +%D \starttyping +%D \definemarking[boxmark] +%D +%D \setbox0\ruledvbox{ +%D \marking[boxmark]{tufte} \input tufte \par +%D \marking[boxmark]{ward} \input ward \par +%D } +%D +%D \synchronizemarking[zerobox][0] \box0 +%D +%D marks: (\getmarking[boxmark][zerobox][first],\getmarking[boxmark][zerobox][last]) +%D \stoptyping + +\protect \endinput |