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%D \module
%D [ file=enco-ini,
%D version=2007.02.19,
%D title=\CONTEXT\ Encoding Macros,
%D subtitle=Initialization,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright=\PRAGMA]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
%D In the end we will cleanup enco-ini.tex!
% could also be a new kind of table \definecharacter {name} {char} {fallback}
\startruntimectxluacode
characters.context.rehash()
\stopruntimectxluacode
% \ctxlua{characters.context.rehash()}
\ctxlua{characters.context.define()}
\startextendcatcodetable\ctxcatcodes \ctxlua{characters.context.activate()}\stopextendcatcodetable
\startextendcatcodetable\notcatcodes \ctxlua{characters.context.activate()}\stopextendcatcodetable
\startextendcatcodetable\xmlcatcodesn\ctxlua{characters.context.activate()}\stopextendcatcodetable
\startextendcatcodetable\xmlcatcodese\ctxlua{characters.context.activate()}\stopextendcatcodetable
\startextendcatcodetable\xmlcatcodesr\ctxlua{characters.context.activate()}\stopextendcatcodetable
% [[[\utfchar{8194}]]][[[\utfchar{8195}]]] \par
% $[[[\utfchar{8194}]]][[[\utfchar{8195}]]]$\par
% {\setcatcodetable\ctxcatcodes [[[\utfchar{8194}]]][[[\utfchar{8195}]]]}\par
% {\setcatcodetable\texcatcodes [[[\utfchar{8194}]]][[[\utfchar{8195}]]]}\par
% {\setcatcodetable\prtcatcodes [[[\utfchar{8194}]]][[[\utfchar{8195}]]]}\par
% \startXMLdata
% <oeps>((( )))</oeps>
% \stopXMLdata
% $\alpha\char945 \utfchar{945} abc 123$
\unprotect
\newbox\accenttestbox
\unexpanded\def\dobuildtextaccent#1#2%
{\begingroup
\global\setbox\accenttestbox\hbox{#1}%
\scratchcounter\ctxlua{characters.charcode(\number\accenttestbox)}%
\ifcase\scratchcounter\else\accent\scratchcounter\fi
\relax#2%
\endgroup}
\useencoding[032,033,037] % fallbacks for some unicode chars, todo
\setupencoding[\s!default=ec] % for the moment keep it this way, till fonts are there
\protect \endinput
When dealing with characters we have four cases to take into account when moving
from mkii to mkiv:
1. <byte 200> => ref to slot 200 in current font
2. \char 200 => ref to slot 200 in current font
3. <active 200> => can (e.g.) map to another slot in current font
4. \namedglyph => can map to some slot in some font
Using case 2 for special characters is doomed to fail because we are not going
to intercept these on the fly as happens automatically with traditional font
encoding handling. We could do that in a node pass but it's not worth the effort
because we seldom use this case in a document source.
We can consider using utf as internal format for mkii. The main reason for not
doing this before was that it was slow. On the other hand, it would make dealing
with utility files easier.
These are the only cases where char references are used:
enco-def.tex : 46 : \definecharacter dotlessi {\char"10 }
enco-def.tex : 47 : \definecharacter dotlessj {\char"11 }
enco-def.tex : 54 : \definecharacter aeligature {\char26 } % "1A
enco-def.tex : 55 : \definecharacter AEligature {\char29 } % "1D
enco-def.tex : 58 : \definecharacter oeligature {\char27 } % "1B
enco-def.tex : 59 : \definecharacter OEligature {\char30 } % "1E
enco-def.tex : 61 : \definecharacter ssharp {\char25 } % "19
enco-def.tex : 336 : \definecharacter Lstroke {\hsmash{\char32}L}
enco-def.tex : 337 : \definecharacter lstroke {\hsmash{\char32}l}
enco-def.tex : 338 : \definecharacter Ostroke {\char31 } % "1F
enco-def.tex : 339 : \definecharacter ostroke {\char28 } % "1C
enco-il2.tex : 147 : {\dontleavehmode{\char32l}}
enco-il2.tex : 152 : \hbox to\wd0{\hss\char32L}%
symb-eur.tex : 37 : \definesymbol [euro] [\getglyph{Euro}{\char160}]
symb-glm.tex : 61 : \definesymbol [xleftguillemot] [\getglyph{Guil}{\char19}]
symb-glm.tex : 62 : \definesymbol [xrightguillemot] [\getglyph{Guil}{\char20}]
symb-glm.tex : 64 : \definesymbol [xguilsingleleft] [\getglyph{Guil}{\char14}]
symb-glm.tex : 65 : \definesymbol [xguilsingleright] [\getglyph{Guil}{\char15}]
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