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Diffstat (limited to 'tex/context/base/node-rul.mkiv')
| -rw-r--r-- | tex/context/base/node-rul.mkiv | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/tex/context/base/node-rul.mkiv b/tex/context/base/node-rul.mkiv new file mode 100644 index 000000000..1270eb81d --- /dev/null +++ b/tex/context/base/node-rul.mkiv @@ -0,0 +1,343 @@ +%D \module +%D [ file=node-rul, +%D version=2009.11.03, % 1995.10.10, +%D title=\CONTEXT\ Core Macros, +%D subtitle=Bars, +%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. + +% todo: ex and and em traveling with attribute + +\writestatus{loading}{ConTeXt Core Macros / Bars} + +%D The name of this file might change. + +%D \macros +%D {underbar,underbars, +%D overbar,overbars, +%D overstrike,overstrikes, +%D setupbar} +%D +%D In the rare case that we need undelined words, for instance +%D because all font alternatives are already in use, one can +%D use \type{\underbar} and \type{\overstrike} and their plural +%D forms. +%D +%D \startbuffer +%D \underbars{drawing \underbar{bars} under words is a typewriter leftover} +%D \overstrikes{striking words makes them \overstrike{unreadable} but +%D sometimes even \overbar{top lines} come into view.} +%D \stopbuffer +%D +%D \typebuffer +%D +%D \startvoorbeeld +%D \startlines +%D \getbuffer +%D \stoplines +%D \stopvoorbeeld +%D +%D The next macros are derived from the \PLAIN\ \TEX\ one, but +%D also supports nesting. The \type{$} keeps us in horizontal +%D mode and at the same time applies grouping. +%D +%D \showsetup{underbar} +%D \showsetup{underbars} +%D \showsetup{overbar} +%D \showsetup{overbars} +%D \showsetup{overstrike} +%D \showsetup{overstrikes} +%D +%D \showsetup{setupunderbar} + +\unprotect + +%definesystemattribute[ruled] +%definesystemattribute[shifted] + +\registerctxluafile{node-rul}{1.001} + +\newtoks\checkalldefinedbars + +\def\barparameter #1{\csname\dobarparameter\currentbar#1\endcsname} +\def\dobarparameter #1#2{\ifcsname\??on#1#2\endcsname\??on#1#2\else\expandafter\dobarparentparameter\csname\??on#1\s!parent\endcsname#2\fi} +\def\dobarparentparameter#1#2{\ifx#1\relax\s!empty\else\dobarparameter#1#2\fi} + +\unexpanded\def\definebar + {\dotripleempty\dodefinebar} + +\def\dodefinebar[#1][#2][#3]% + {\ifthirdargument + \getparameters[\??on#1][\s!parent=#2,#3]% + \else + \getparameters[\??on#1][\s!parent=,#2]% + \fi + % + %\setvalue{\??on:#1}{0}% + % + \ifcsname\??on:#1:c\endcsname + \csname\??on:#1:c\endcsname\zerocount + \else + \expandafter\newcount\csname\??on:#1:c\endcsname + \fi + \normalexpanded{\checkalldefinedbars{\noexpand\doredefinebar{#1}\the\checkalldefinedbars}}% + \dodefinebarindeed{#1}% + \setuvalue{#1}{\doruled{#1}}} + +\def\dodefinebarindeed#1% + {\bgroup + \def\currentbar{#1}% + \doifsomethingelse{\barparameter\c!color} + {\donetrue\colored[\barparameter\c!color]} + {\donefalse}% + \normalexpanded + {\egroup + \scratchcounter\ctxlua{nodes.rules.define { + method = \barparameter\c!method, + offset = \barparameter\c!offset, + continue = "\barparameter\c!continue", + dy = \barparameter\c!dy, + rulethickness = \barparameter\c!rulethickness, + unit = "\barparameter\c!unit", + order = "\barparameter\c!order", + max = \barparameter\c!max, + ma = \ifdone\the\attribute\colormodelattribute \else0\fi, + ca = \ifdone\the\attribute\colorattribute \else0\fi, + ta = \ifdone\the\attribute\transparencyattribute\else0\fi + }}}% + \setevalue{\??on#1:a}{\the\scratchcounter}} + +\let\doredefinebar\dodefinebarindeed + +\def\doruled#1% + {\groupedcommand{\dodoruled{#1}}\relax} + +\def\dodoruled + {\ctxlua{nodes.rules.enable()}% + \glet\dodoruled\dodoruledindeed + \dodoruled} + +\def\dodoruledindeed#1% + {\advance\csname\??on:#1:c\endcsname\plusone + \scratchcounter\csname\??on:#1:c\endcsname + \attribute\ruledattribute\numexpr1000*\scratchcounter + +\csname\??on#1\ifcsname\??on#1:\number\scratchcounter\s!parent\endcsname:\number\scratchcounter\fi:a\endcsname} + +% ungrouped + +\unexpanded\def\startbar[#1]% + {\begingroup + \dodoruled{#1}} + +\unexpanded\def\stopbar + {\endgroup} + +\newcount\currentbarnesting % todo: same as colors + +\unexpanded\def\pushbar[#1]% + {\global\advance\currentbarnesting\plusone + \expandafter\edef\csname\??on:s:\number\currentbarnesting\endcsname + {\attribute\ruledattribute\the\attribute\ruledattribute}% stack + \dodoruled{#1}} + +\unexpanded\def\popbar + {\csname\??on:s:\number\currentbarnesting\endcsname + \global\advance\currentbarnesting\minusone} + +\unexpanded\def\setupbars + {\dodoubleempty\dosetupbars} + +\def\dosetupbars[#1][#2]% not that efficient + {\ifsecondargument + \getparameters[\??on#1][#2]% + \dodefinebarindeed{#1}% + \else + \getparameters[\??on][#1]% + \the\checkalldefinedbars + \fi} + +\setupbars + [\c!method=0, % new: 0=center nested, 1=stack nested + \c!continue=\v!no, + \c!offset=0, % upwards, replaces: topoffset bottomoffset + \c!dy=0, + \c!max=3, + \c!rulethickness=.1, + \c!order=\v!foreground, + \c!unit=ex, % so now we are relative + \c!color=] % replaces: rulecolor + +% \definebar[touchbar] [\c!method=0,\c!dy=-0.4,\c!offset=-0.0] +% \definebar[touchbars] [touchbar] [\c!continue=\v!yes] + +\definebar[\v!overstrike] [\c!method=0,\c!dy= 0.4,\c!offset= 0.5,\c!continue=\v!yes] +\definebar[\v!underbar] [\c!method=1,\c!dy=-0.4,\c!offset=-0.3,\c!continue=\v!yes] +\definebar[\v!overbar] [\c!method=1,\c!dy= 0.4,\c!offset= 1.8,\c!continue=\v!yes] + +\definebar[\v!overstrikes] [\v!overstrike] [\c!continue=\v!no] +\definebar[\v!underbars] [\v!underbar] [\c!continue=\v!no] +\definebar[\v!overbars] [\v!overbar] [\c!continue=\v!no] + +% we want these always so ... + +\expandafter\let\expandafter\overstrike \csname\v!overstrike \endcsname +\expandafter\let\expandafter\underbar \csname\v!underbar \endcsname +\expandafter\let\expandafter\overbar \csname\v!overbar \endcsname +\expandafter\let\expandafter\overstrikes\csname\v!overstrikes\endcsname +\expandafter\let\expandafter\underbars \csname\v!underbars \endcsname +\expandafter\let\expandafter\overbars \csname\v!overbars \endcsname + +\unexpanded\def\setupunderbar[#1]% too incompatible for the moment + {} + +%D This will move: (a bit duplicated) + +\newtoks\checkalldefinedshifts + +\def\shiftparameter #1{\csname\doshiftparameter\currentshift#1\endcsname} +\def\shiftparameterhash#1{\doshiftparameterhash{\??ra\currentshift}#1} + +\def\doshiftparameter #1#2{\ifcsname\??ra#1#2\endcsname\??ra#1#2\else\expandafter\doshiftparentparameter\csname\??ra#1\s!parent\endcsname#2\fi} +\def\doshiftparameterhash#1#2{\ifcsname#1#2\endcsname#1\else\expandafter\doshiftparentparameterhash\csname#1\s!parent\endcsname#2\fi} + +\def\doshiftparentparameter #1#2{\ifx#1\relax\s!empty\else\doshiftparameter #1#2\fi} +\def\doshiftparentparameterhash#1#2{\ifx#1\relax \else\doshiftparameterhash#1#2\fi} + +\def\dosetshiftattributes#1#2% style color + {\edef\fontattributehash {\shiftparameterhash#1}% + \edef\colorattributehash{\shiftparameterhash#2}% + \ifx\fontattributehash \empty\else\dosetfontattribute \fontattributehash #1\fi + \ifx\colorattributehash\empty\else\dosetcolorattribute\colorattributehash#2\fi} + +\unexpanded\def\defineshift + {\dotripleempty\dodefineshift} + +\def\dodefineshift[#1][#2][#3]% + {\ifthirdargument + \getparameters[\??ra#1][\s!parent=#2,#3]% + \else + \getparameters[\??ra#1][\s!parent=,#2]% + \fi + % + %\setvalue{\??ra:#1}{0}% + % + \ifcsname\??ra:#1:c\endcsname + \csname\??ra:#1:c\endcsname\zerocount + \else + \expandafter\newcount\csname\??ra:#1:c\endcsname + \fi + \normalexpanded{\checkalldefinedshifts{\noexpand\doredefineshift{#1}\the\checkalldefinedshifts}}% + \dodefineshiftindeed{#1}% + \setuvalue{#1}{\doshifted{#1}}} + +\def\dodefineshiftindeed#1% + {\bgroup + \def\currentshift{#1}% + \normalexpanded + {\egroup + \scratchcounter\ctxlua{nodes.shifts.define { + method = \shiftparameter\c!method, + continue = "\shiftparameter\c!continue", + dy = \shiftparameter\c!dy, + unit = "\shiftparameter\c!unit", + }}}% + \setevalue{\??ra#1:a}{\the\scratchcounter}} + +\let\doredefineshift\dodefineshiftindeed + +\def\doshifted#1% + {\groupedcommand{\dodoshifted{#1}}\relax} + +\def\dodoshifted + {\ctxlua{nodes.shifts.enable()}% + \glet\dodoshifted\dodoshiftedindeed + \dodoshifted} + +% \def\dodoshiftedindeed#1% +% {\def\currentshift{#1}% +% \advance\csname\??ra:#1:c\endcsname\plusone +% \scratchcounter\csname\??ra:#1:c\endcsname +% \attribute\shiftedattribute\numexpr1000*\scratchcounter +% +\csname\??ra#1\ifcsname\??ra#1:\number\scratchcounter\s!parent\endcsname:\number\scratchcounter\fi:a\endcsname +% \setupalign[\shiftparameter\c!align]% +% \dosetshiftattributes\c!style\c!color} + +\def\dostartisolation{\char0 } +\def\dostopisolation {\char0 } +\def\doisolator {\char0 } + +\def\doisolatedgroupedalign#1#2% + {\groupedcommand + {\begingroup\dostartisolation\begingroup#1} + {#2\endgroup\dostopisolation\endgroup}} + +\def\dosetupisolatedalign#1% + {\doisolator + \setupalign[#1]\relax} + +\def\dodoshiftedindeed#1% + {\def\currentshift{#1}% + \advance\csname\??ra:#1:c\endcsname\plusone + \scratchcounter\csname\??ra:#1:c\endcsname + \attribute\shiftedattribute\numexpr1000*\scratchcounter + +\csname\??ra#1\ifcsname\??ra#1:\number\scratchcounter\s!parent\endcsname:\number\scratchcounter\fi:a\endcsname + \dosetshiftattributes\c!style\c!color + \dosetupisolatedalign{\shiftparameter\c!align}} + +\def\doshifted#1% + {\doisolatedgroupedalign{\dodoshifted{#1}}{}} + +\unexpanded\def\startshift[#1]% + {\begingroup + \dodoshifted{#1}} + +\unexpanded\def\stopshift + {\endgroup} + +\unexpanded\def\setupshifts + {\dodoubleempty\dosetupshifts} + +\def\dosetupshifts[#1][#2]% not that efficient + {\ifsecondargument + \getparameters[\??ra#1][#2]% + \dodefineshiftindeed{#1}% + \else + \getparameters[\??ra][#1]% + \the\checkalldefinedshifts + \fi} + +\setupshifts + [\c!method=0, + \c!continue=\v!no, + \c!dy=0, + \c!unit=ex, + \c!align=, + \c!style=, + \c!color=] + +\def\v!shiftup {shiftup} +\def\v!shiftdown{shiftdown} + +\defineshift [\v!shiftup] [\c!method=0,\c!dy=-1,\c!unit=ex,\c!continue=\v!yes,\c!style=\txx,\c!color=] +\defineshift [\v!shiftdown] [\c!method=1,\c!dy=.3,\c!unit=ex,\c!continue=\v!yes,\c!style=\txx,\c!color=] + +% we want these always so ... + +\expandafter\let\expandafter\shiftup \csname\v!shiftup \endcsname +\expandafter\let\expandafter\shiftdown \csname\v!shiftdown \endcsname + +\protect \endinput + +% obsolete: + +\setupunderbar + [\c!alternative=a, + \c!rulethickness=\linewidth, + \c!bottomoffset=1.5pt, + \c!topoffset=2.5pt, + \c!rulecolor=] |