diff options
Diffstat (limited to 'tex/context/base/node-rul.mkiv')
| -rw-r--r-- | tex/context/base/node-rul.mkiv | 202 |
1 files changed, 202 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..246e8d222 --- /dev/null +++ b/tex/context/base/node-rul.mkiv @@ -0,0 +1,202 @@ +%D \module +%D [ file=node-bar, +%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. + +\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] + +\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} + +\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}% + \unexpanded\setvalue{#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( + \barparameter\c!method, + \barparameter\c!offset, + "\barparameter\c!continue", + \barparameter\c!dy, + \barparameter\c!rulethickness, + "\barparameter\c!unit", + "\barparameter\c!order", + \barparameter\c!max, + \ifdone\the\attribute\colormodelattribute\else0\fi, + \ifdone\the\attribute\colorattribute\else0\fi, + \ifdone\the\attribute\transparencyattribute\else0\fi)}}% + \setevalue{\??on#1:a}{\the\scratchcounter}} + +\let\doredefinebar\dodefinebarindeed + +\def\doruled + {\ctxlua{nodes.rules.enable()}% + \glet\doruled\doruledindeed + \doruledindeed} + +\def\doruledindeed#1% + {\groupedcommand{\dodoruled{#1}}\relax} + +\def\dodoruled#1% + {\advance\csname\??on:#1:c\endcsname\plusone + \scratchcounter\csname\??on:#1:c\endcsname + \dosetattribute{ruled}{\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 + +\unexpanded\def\pushbar[#1]% + {\global\advance\currentbarnesting\plusone + \setevalue{\??on:s:\number\currentbarnesting}{\dogetattribute{ruled}}% stack + \dodoruled{#1}} + +\unexpanded\def\popbar + {\dosetattribute{ruled}{\getvalue{\??on:s:\number\currentbarnesting}}% + \global\advance\currentbarnesting\minusone} + +\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] +\definebar[\v!underbar] [\c!method=1,\c!dy=-0.4,\c!offset=-0.3] +\definebar[\v!overbar] [\c!method=1,\c!dy= 0.4,\c!offset= 1.8] + +\definebar[\v!overstrikes] [\v!overstrike] [\c!continue=\v!yes] +\definebar[\v!underbars] [\v!underbar] [\c!continue=\v!yes] +\definebar[\v!overbars] [\v!overbar] [\c!continue=\v!yes] + +% 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 + +\def\setupunderbar[#1]% too incompatible for the moment + {} + +\protect \endinput + +% obsolete: + +\setupunderbar + [\c!alternative=a, + \c!rulethickness=\linewidth, + \c!bottomoffset=1.5pt, + \c!topoffset=2.5pt, + \c!rulecolor=] |