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%D \module
%D   [       file=mult-ini,
%D        version=1996.06.01,
%D          title=\CONTEXT\ Multilingual Macros,
%D       subtitle=Initialization,
%D         author=Hans Hagen,
%D           date=\currentdate,
%D      copyright={PRAGMA / Hans Hagen \& Ton Otten}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.

\unprotect

%D This is the oldest variant. Here we filter messages from a big string.

\def\findinterfacemessage#1#2%
  {\let#2\empty
   \def\dofindinterfacemessage##1 #1: ##2\relax##3\end{\def#2{##2}}%
   \edef\!!stringa{\getvalue{\??ms\currentmessagelibrary} #1: \relax}%
   \expandafter\dofindinterfacemessage\!!stringa\end}

\def\composemessagetext#1--#2--#3--#4--#5--#6--#7--#8--#9\\%
  {\def\docomposemessagetext##1,##2,##3,##4,##5,##6,##7,##8,##9\\%
     {\edef\currentmessagetext{#1##1#2##2#3##3#4##4#5##5#6##6#7##7#8##8}}%
   \docomposemessagetext}

\def\setmessagetext#1#2%
  {\def\currentmessagelibrary{#1}%
   \findinterfacemessage{#2}\currentmessagetext}

\unexpanded\def\getmessage#1#2%
  {\def\currentmessagelibrary{#1}%
   \findinterfacemessage{#2}\currentmessagetext
   \currentmessagetext}

\unexpanded\def\makemessage#1#2#3%
  {\def\currentmessagelibrary{#1}%
   \findinterfacemessage{#2}\currentmessagetext
   \@EA\composemessagetext\currentmessagetext----------------\\#3,,,,,,,,\\%
   \currentmessagetext}

\def\showmessage#1#2#3%
  {\def\currentmessagelibrary{#1}%
   \findinterfacemessage{#2}\currentmessagetext
   \findinterfacemessage{title}\currentmessagetitle
   \ifx\currentmessagetext\empty
     \def\currentmessagetext{<unknown message #2>}%
   \else
     \@EA\composemessagetext\currentmessagetext----------------\\#3,,,,,,,,\\%
   \fi
   \@EA\writestatus\@EA{\currentmessagetitle}{\currentmessagetext}}

\def\doaddinterfacemessage#1#2%
  {\findinterfacemessage{#1}\currentmessagetext
   \doifelsenothing\currentmessagetext
     {\setxvalue{\??ms\currentmessagelibrary}%
        {\getvalue{\??ms\currentmessagelibrary} #1: #2\relax}}
     {\debuggerinfotrue % we consider this an important error
      \debuggerinfo
        {message}
        {duplicate tag #1
         in library \currentmessagelibrary\space
         of interface \currentresponses}}%
   \futurelet\next\getinterfacemessage}

\bgroup
\obeylines
\gdef\addinterfacemessage#1: #2
  {\doaddinterfacemessage{#1}{#2}}%
\egroup

\def\getinterfacemessage
  {\ifx\next\stopmessages
     \egroup\expandafter\gobbleoneargument
   \else
     \expandafter\addinterfacemessage
   \fi}

\let\stopmessages\undefined % for dep checker

\def\startmessages #1 library: #2
  {\definemessageconstant{#2}% handy for modules
   \bgroup
   \obeylines
   \doifinsetelse{#1}{\currentresponses,all}
     {\def\next
        {\def\currentmessagelibrary{#2}%
         \doifundefined{\??ms\currentmessagelibrary}
           {\letgvalueempty{\??ms\currentmessagelibrary}}%
         \futurelet\next\getinterfacemessage}}
     {\long\def\next##1\stopmessages{\egroup}}%
   \next}

%D Here, the messages are stored in a way that saves hash
%D entries, i.e. they are packed in one macro per library.
%D This was important in the days when we used \TEX's with
%D hash tables of about 10.000. The next, less efficient way
%D of storing the message, makes \CONTEXT\ run upto 5\%
%D faster by storing each message in a macro. In July 2000,
%D this costs some 185 additional hash entries, and since
%D we run large \TEX's, let do it!

\def\startmessages #1 library: #2
  {\definemessageconstant{#2}% handy for modules
   \bgroup
   \obeylines
   \doifundefined{\m!prefix!#2}{\setgvalue{\m!prefix!#2}{#2}}%
   \doifinsetelse{#1}{\currentresponses,all}
     {\def\next
        {\def\currentmessagelibrary{#2}%
         \futurelet\next\getinterfacemessage}}
     {\long\def\next##1\stopmessages{\egroup}}%
   \next}

\def\findinterfacemessage#1#2%
  {\edef#2{\getvalue{\??ms\currentmessagelibrary#1}}}

\def\doaddinterfacemessage#1#2%
  {\doifdefined{\??ms\currentmessagelibrary#1}
     {\debuggerinfotrue % we consider this an important error
      \debuggerinfo
        {message}
        {duplicate tag #1
         in library \currentmessagelibrary\space
         of interface \currentresponses}}%
   \setxvalue{\??ms\currentmessagelibrary#1}{#2}%
   \futurelet\next\getinterfacemessage}

\protect \endinput