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%D \module
%D [ file=unic-exp,
%D version=2002.12.05,
%D title=\CONTEXT\ \UNICODE\ Support,
%D subtitle=Expansion,
%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 Unicode Support / Expansion)}
%D \macros
%D {expandunivector}
%D
%D The \type {\expandunivector} macro can be used to expand
%D vectors, which leads to a faster run in case of documents
%D with lots of \UTF-8 code.
\unprotect
\def\expandunivector[#1]%
{\processcommalist[#1]\doexpandunivector}
\def\doexpandunivector#1%
{\ifcsname\@@univector#1\endcsname
\ifcsname\@@univector\@@univector#1\endcsname\else
\writestatus{unicode}{expanding vector #1}%
\setvalue{\@@univector\@@univector#1}{\expandedunivector{#1}}%
\dorecurse{255}
{\@EA\ifx\csname\csname\@@univector#1\endcsname\recurselevel\endcsname\unknownchar
% skip
\else
\@EA\let\csname\@@univector\@@univector#1:\recurselevel\@EA\endcsname
\csname\csname\@@univector#1\endcsname\recurselevel\endcsname
\fi}%
\letbeundefined{\@@univector#1}%
\fi
\fi}
\def\expandedunivector#1#2%
{\ifcsname\@@univector\@@univector#1:\number#2\endcsname
\@@univector\@@univector#1:\number#2%
\else
\@@unknownchar
\fi}
%D For this purpose, we need to redefine the resolver.
\def\doutfunihash#1#2%
{\csname \@@univector
\ifcsname\@@univector\@@univector#1\endcsname \@@univector#1\else
\ifcsname\@@univector #1\endcsname #1\else
\s!unknown\fi\fi
\endcsname{\utfmod{#2}}}
\setvalue{\@@univector\s!unknown}#1%
{\@@unknownchar}
\def\doutfunihashglyph#1#2#3% div mod raw
{\csname utf!\ifnum#3<\utf@i1\else
\ifcsname\@@unicommand#1\endcsname2\else
\ifcsname\@@univector\@@univector#1\endcsname3\else
\ifcsname\@@univector #1\endcsname4\else
5\fi\fi\fi\fi !\endcsname{#1}{#2}}
\setvalue{utf!1!}#1{\unicodeasciicharacter} % {#2}
\setvalue{utf!2!}#1{\csname\@@unicommand#1\endcsname} % {#2}
\setvalue{utf!3!}#1#2{\csname\csname\@@univector\@@univector#1\endcsname{#2}\endcsname} % watch the nested csname; it's a speed up
\setvalue{utf!4!}#1#2{\csname\csname\@@univector#1\endcsname{#2}\endcsname} % watch the nested csname; it's a speed up
\setvalue{utf!5!}#1#2{\unicodeunknowncharacter}
% \let\utfunihash\utfunihashglyph
%D Let's use it:
\expandunivector[0,1,2,3,4,5,30,31,32,33,34,37,39]
\protect \endinput
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