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%D \module
%D [ file=file-mod, % was core-fil,
%D version=20110701, % 1997.11.15,
%D title=\CONTEXT\ File Macros,
%D subtitle=Module Support,
%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 File Macros / Modules}
\unprotect
\registerctxluafile{file-mod}{1.001}
%D \macros
%D {usemodule}
%D
%D Most of \CONTEXT is preloaded in the format file. Some very
%D domain specific typesetting topics are however dealt with in
%D separate modules, e.g. typesetting of chemical structure
%D formulas. These modules are loaded by:
%D
%D \showsetup{usemodule}
%D
%D More information on the specific modules can be found in
%D their dedicated manuals. We use \type {\next} so that we
%D can \type {\end} in modules.
\def\dodousemodules#category#name%
{\ctxcommand{usemodules("#category","#name","\truefilename{#name}")}}
\def\usemodules
{\dotripleempty\dousemodules}
\let\usemodule\usemodules
\def\dousemodules[#category][#name][#parameters]%
{\pushmacro\currentmodule
\pushmacro\currentmoduleparameters
\let\currentmoduleparameters\empty
\ifthirdargument
\doifelsenothing{#name}
{\let\next\relax}
{\def\currentmoduleparameters{#parameters}%
\def\next{\processcommalist[#name]{\dodousemodules{#category}}}}%
\else\ifsecondargument
\doifelsenothing{#name}
{\let\next\relax}
{\doifassignmentelse{#name}
{\def\currentmoduleparameters{#name}%
\def\next{\processcommalist[#category]{\dodousemodules{}}}}
{\def\next{\processcommalist[#name]{\dodousemodules{#category}}}}}%
\else
\def\next{\processcommalist[#category]{\dodousemodules{}}}%
\fi\fi
\next
\popmacro\currentmoduleparameters
\popmacro\currentmodule}
\let\currentmoduleparameters\empty
\let\currentmodule \s!unknown
\unexpanded\def\startmodule
{\doifnextoptionalelse\dostartmodule\nostartmodule}
\def\nostartmodule #name %
{\dostartmodule[#name]}
\def\dostartmodule[#name]%
{\pushmacro\currentmodule
\pushmacro\currentmoduleparameters
\def\currentmodule{#name}}
\unexpanded\def\stopmodule
{\popmacro\currentmoduleparameters
\popmacro\currentmodule}
\unexpanded\def\setupmodule
{\dodoubleempty\dosetupmodule}
\def\dosetupmodule[#name][#parameters]%
{\scratchtoks\expandafter{\currentmoduleparameters}%
\ifsecondargument
\getparameters[\??md:#name:][#parameters]%
\expanded{\getparameters[\??md:#name:][\the\scratchtoks]}%
\else
\getparameters[\??md:\currentmodule:][#name]%
\expanded{\getparameters[\??md:\currentmodule:][\the\scratchtoks]}%
\fi
\let\currentmoduleparameters\empty}
\def\moduleparameter #name#parameter{\executeifdefined{\??md:#name:#parameter}{}}
\def\currentmoduleparameter #parameter{\executeifdefined{\??md:\currentmodule:#parameter}{}}
\def\useluamodule [#name]{\ctxlua{dofile(resolvers.findctxfile("#name"))}}
\def\luaenvironment #name {\ctxlua{dofile(resolvers.findctxfile("#name"))}}
% \usemodule[newmml]
% \usemodule[newmml][a=b]
% \usemodule[x][newmml]
% \usemodule[x][newmml][a=b]
%
% \startmodule [mathml]
% \setupmodule[a=c] \relax [\currentmoduleparameter{a}] % user vars will be set afterwards
% \setupmodule[a=c] \relax [\currentmoduleparameter{a}] % user vars are now forgotten
% \stopmodule
% one can introduce test sections with:
%
% \enablemode[newmml:test:\currentmoduleparameter{test}]
% \startmode[newmml:test:yes} ... \stopmode
%
% these will be ignored unless test=yes
%
% however, a better way is:
\let\stopmoduletestsection\donothing
\unexpanded\def\startmoduletestsection
{\bgroup
\setupmodule % we need to make sure that the vars are set
\doifelse{\currentmoduleparameter\v!test}\v!yes
{\egroup
\writestatus{\currentmodule}{loading experimental code}}
{\egroup
\writestatus{\currentmodule}{skipping experimental code}%
\gobbleuntil\stopmoduletestsection}}
% will become file-run
%D To save memory, we implement some seldomly used commands
%D in a lazy way. Nota bene: such runtime definitions are
%D global.
%D
%D \starttyping
%D \fetchruntimecommand\showaccents{\f!encodingprefix ...}
%D \stoptyping
\def\fetchruntimecommand#1#2%
{\def#1{\dofetchruntimecommand#1{#2}}}
\def\dofetchruntimecommand#1#2%
{\doifnotflagged{#2}
{\let#1\undefined
\startreadingfile
\startnointerference % \bgroup
\cleanupfeatures % better \setnormalcatcodes / test first
\readfile{#2.\mksuffix}\donothing\donothing
\stopnointerference % \egroup
\stopreadingfile
\doglobal\setflag{#2}}%
\ifx#1\undefined
\writestatus\m!system{command \string#1 not found in file #2}%
\gdef#1{{\infofont[unknown command \string#1]}}%
\fi
#1}
%D \macros
%D {doifolderversionelse}
%D
%D We start with a macro specially for Aditya who wants to be able
%D to use development versions of \MKIV\ for real documents.
%D
%D \starttyping
%D \doifolderversionelse\contextversion{1010.10.10} {OLDER} {OKAY} => OLDER
%D \doifolderversionelse\contextversion{2020.20.20} {OLDER} {OKAY} => OKAY
%D \doifolderversionelse\contextversion{2020} {OLDER} {OKAY} => OKAY
%D \stoptyping
%D
%D The version pattern is \type {yyyy.mm.dd} (with mm and dd being optional).
\def\doifolderversionelse#parent#child{\ctxcommand{doifolderversionelse("#parent","#child")}}
\def\doifoldercontextelse #child{\ctxcommand{doifolderversionelse("#child")}}
%D Experimental:
\let\checkpreprocessor\relax
%D To be documented and probably moved
\def\documentresources{\@@erurl}
\unexpanded\def\setupexternalresources
{\dodoubleargument\getparameters[\??er]}
\setupexternalresources
[url=]
\protect \endinput
|
