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%D \module
%D [ file=char-ini,
%D version=2006.08.20,
%D title=\CONTEXT\ Character Support,
%D subtitle=Initialization,
%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 Character Support / Initialization}
\registerctxluafile{char-fio}{}
\registerctxluafile{char-map}{} % maybe we will load this someplace else
\registerctxluafile{char-tex}{}
\registerctxluafile{char-ent}{}
\unprotect
% ¨äëïöüÿ
% ´áćéíĺńóŕśúýź
% ˙ċėġiż
% ¯āēīōū
% ˝őű
% ˆâĉêĝĥîĵôŝûŵŷ
% `àèìòùỳ
% ¸çķļņŗşţ
% ˛ąęįų
% ˚åů
% ˘ăĕğĭŏŭ
% ˇčďěľňřšťž
% ˜ãĩñõũ
% \def\checkedchar#1% #2%
% {\relax\iffontchar\font#1 \expandafter\firstoftwoarguments\else\expandafter\secondoftwoarguments\fi{\char#1}}
%
% impossible in math mode so there always fallback (till we have gyre):
%
% use \normalUchar when possible .. the next one is nice for documents and it also accepts
% 0x prefixed numbers
\permanent\def\utfchar #1{\clf_utfchar {#1}} % todo: define public at lua end
\permanent\def\safechar#1{\clf_safechar{#1}} % todo: define public at lua end
\permanent\protected\def\Ux #1{\Uchar\numexpr"#1\relax} % used in xml (sometimes overloaded)
\permanent \def\eUx#1{\Uchar\numexpr"#1\relax} % used in xml (sometimes overloaded)
\permanent\def\expandUx{\enforced\let\Ux\eUx}
\permanent \def\checkedchar {\relax\ifmmode\expandafter\checkedmathchar\else\expandafter\checkedtextchar\fi} % #1#2
\permanent \def\checkedmathchar#1#2{#2}
%permanent \def\checkedtextchar #1{\iffontchar\font#1 \expandafter\firstoftwoarguments\else\expandafter\secondoftwoarguments\fi{\char#1}}
\permanent\protected\def\checkedtextchar #1{\clf_doifelsecharinfont\numexpr#1\relax{\char#1}} % {#2}
\newconditional\prefermathovertextchar
\permanent\protected\def\textormathchar#1%
{\begingroup
\scratchcounter#1\relax
\ifmmode
\char\scratchcounter
\else
\ifconditional\prefermathovertextchar
% dirty trick .. maybe let this adapt to bf too ?
\setfontid\fontid\textfont\c_font_fam_mr
\fi
\iffontchar\font\scratchcounter
\char\scratchcounter
\else
\normalstartimath\char\scratchcounter\normalstopimath
\fi
\fi
\endgroup}
\permanent\protected\def\textormathchars#1%
{{\font_text_or_mathchars#1\relax}}
\protected\def\font_text_or_mathchars#1#2\relax
{\relax\ifmmode
#1#2%
\orelse\iffontchar\font`#1\relax
#1#2\relax
\else
\normalstartimath#1#2\normalstopimath
\fi}
%D The codes are stored in the format, so we don't need to reinitialize
%D them (unless of course we have adapted the table). It is on the agenda
%D to do this with \type {tex.lccode} cum suis once they're available.
% \def\setcclcuc#1#2#3{\global\catcode#1=\lettercatcode\global\lccode#1=#2\global\uccode#1=#3\relax}
% \def\setcclcucself#1{\global\catcode#1=\lettercatcode\global\lccode#1=#1\global\uccode#1=#1\relax }
% Is setting up vrb tpa and tpb needed?
% move to lua side
%clf_setcharactercodes
\clf_setlettercatcodes\texcatcodes
\clf_setlettercatcodes\ctxcatcodes
\clf_setlettercatcodes\notcatcodes
%clf_setlettercatcodes\mthcatcodes
\clf_setlettercatcodes\vrbcatcodes
\clf_setlettercatcodes\prtcatcodes
\clf_setlettercatcodes\tpacatcodes
\clf_setlettercatcodes\tpbcatcodes
\clf_setlettercatcodes\txtcatcodes
\clf_setactivecatcodes\ctxcatcodes
\clf_setactivecatcodes\notcatcodes
\clf_setactivecatcodes\prtcatcodes
\clf_setcharacternames\ctxcatcodes
\permanent\def\chardescription#1{\clf_chardescription#1\relax}
% experiment (watch out: this is global and very font dependent when used with
% casing mechanisms)
%
% \overloaduppercase{0xDF}{0x1E9E}}
% \overloaduppercase{0xDF}{0x53,0x53}
\permanent\protected\def\overloaduppercase{\clf_overloaduppercase} % todo: define public at lua end
\permanent\protected\def\overloadlowercase{\clf_overloadlowercase} % todo: define public at lua end
\protect \endinput
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