scrp-ini.mkiv / last modification: 2020-01-30 14:16
%D \module
%D   [       file=scrp-ini,
%D        version=2009.02.06,
%D          title=\CONTEXT\ Script Macros,
%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.

% here we collect code from other places (was organized differently)

\registerctxluafile{scrp-ini}{}
\registerctxluafile{scrp-cjk}{}
\registerctxluafile{scrp-eth}{}
\registerctxluafile{scrp-tha}{}
\registerctxluafile{scrp-tib}{}

\definesystemattribute[scriptinjection][public,pickup]
\definesystemattribute[scriptsplitting][public,pickup]
\definesystemattribute[scriptstatus]   [public,pickup]

%D Since scripts need specific \LUA\ code we use hard coded attribute
%D values, but we might have more tricks at some time, so we use a
%D proper define macro too.

\unprotect

\installcorenamespace{script}

\installcommandhandler \??script {script} \??script

\let\setupscripts\setupscript % be nice

% presets are global and are currently defined in lua

\appendtoks
    \setuevalue\currentscript{\setscript[\currentscript]}%
\to \everydefinescript

\unexpanded\def\scripts_basics_set
  {\clf_setscript{\currentscript}{\scriptparameter\c!method}{\scriptparameter\c!preset}}

% \unexpanded\def\setscript[#1]%
%   {\edef\currentscript{#1}%
%    \scripts_basics_set}

\unexpanded\def\setglobalscript[#1]%
  {\edef\currentscript{#1}%
   \scripts_basics_set
   \pickupscriptinjectionattribute
   \pickupscriptsplittingattribute
   \pickupscriptstatusattribute}

\unexpanded\def\setlocalscript[#1]%
  {\edef\currentscript{#1}%
   \scripts_basics_set}

\let\setscript\setlocalscript

\unexpanded\def\resetscript
  {\clf_resetscript}

\unexpanded\def\startscript[#1]%
  {\begingroup
   \edef\currentscript{#1}%
   \scripts_basics_set}

\unexpanded\def\stopscript
  {\endgroup}

% % todo:
%
% \unexpanded\def\setscriptsplitterlist
%   {\dodoubleargument\scripts_basics_set_splitter_list}
%
% \def\scripts_basics_set_splitter_list[#1][#2]%
%   {\ctxcommand{setscriptsplitterlist("#1","#2")}

% \setscript[hangul] \hangul \startscript[hangul]

\definescript [hangul]   [\c!method=hangul]
\definescript [hanzi]    [\c!method=hanzi]
\definescript [nihongo]  [\c!method=nihongo]
\definescript [ethiopic] [\c!method=ethiopic]
\definescript [thai]     [\c!method=thai]
\definescript [tibetan]  [\c!method=tibetan]

\definescript [latin]    [\c!method=]        %  resets the attribute (also currentscript)

\definescript [test]     [\c!method=test]

% a new trick (at some point we will predefine more scripts and consider a link with the above)

\appendtoks
    \ifx\currentscript\empty
        \doifelse{\scriptparameter\s!features}\v!auto\enableautofontscript\disableautofontscript
    \fi
\to \everysetupscript

\unexpanded\def\enableautofontscript {\clf_enableautofontscript }
\unexpanded\def\disableautofontscript{\clf_disableautofontscript}

\definefontfeature[latn][script=latn]
\definefontfeature[grek][script=grek]

\protect \endinput