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%D \module
%D [ file=lang-lab,
%D version=1997.08.27,
%D title=\CONTEXT\ Language Macros,
%D subtitle=Labels,
%D author=Hans Hagen / Tobias Burnus,
%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.
\writestatus{loading}{ConTeXt Language Macros / Labels}
\registerctxluafile{lang-lab}{1.001}
\registerctxluafile{lang-txt}{1.001}
\unprotect
%C The UPPERCASE variants are obsolete as we can now use \WORD
%C in an non-interfering way.
%D In this module we deal with language dependant labels and
%D prefixes, like in {\em Figure~12} and {\em Chapter 1}. In
%D this file we set the default values. Users can easily
%D overrule these.
%D
%D This module is dedicated to the grandfather of Tobias
%D Burnus, who's extensive languages oriented library helped us
%D a lot in finding the right translations. All those labels
%D are collected in files that reflect their common ancestor.
%D
%D Not all languages can be satisfied with the labeling
%D mechanism as provided here. Chinese for instance put a label
%D in front as well as after a part number. This is why the
%D current implementation of labels supports two labels too.
\ifdefined\simplifiedcommands \else \newtoks\simplifiedcommands \fi
\ifdefined\Word \else \let\Word\relax \fi
%D \macros
%D {setupheadtext, setuplabeltext}
%D
%D First we present some macros that deal with what we will
%D call head and label texts. Such texts are defines by:
%D
%D \showsetup{setupheadtext}
%D \showsetup{setuplabeltext}
%D
%D A regular \CONTEXT\ stores some 1500 labels at most.
%D
%D These commands accept all kind of inputs:
%D
%D \starttyping
%D \setuplabeltext [language] [labellabel=text]
%D \setuplabeltext [language] [labellabel=text,labellabel=text,...]
%D \setuplabeltext [labellabel=text]
%D \setuplabeltext [labellabel=text,labellabel=text,...]
%D \stoptyping
%D
%D The last two cases concern the current language.
\def\definelabelclass
{\dodoubleempty\dodefinelabelclass}
\def\dodefinelabelclass[#1][#2]%
{\normalexpanded
{\noexpand\dododefinelabelclass
{#1}%
{\ifsecondargument#2\else\zerocount\fi}%
\expandafter\noexpand\csname dogetupsome#1text\endcsname
\expandafter\noexpand\csname #1language\endcsname
\expandafter\noexpand\csname dodogetupsome#1text\endcsname
\expandafter\noexpand\csname left#1text\endcsname
\expandafter\noexpand\csname right#1text\endcsname
\expandafter\noexpand\csname #1texts\endcsname
\expandafter\noexpand\csname #1text\endcsname}}
\let\currentlabelcategory\empty
\def\dododefinelabelclass#1#2#3#4#5#6#7#8#9%
{\setuvalue{setup#1text}{\protecttextprefixes#2\def\currenttextprefixclass{#1}\dodoubleempty\dosetupsometextprefix}%
\setuvalue{preset#1text}{\protecttextprefixes1\def\currenttextprefixclass{#1}\dodoubleempty\dosetupsometextprefix}%
\def#4{\reallanguagetag{\defaultlanguage\currentmainlanguage}}%
\ifnum#2=\plustwo
\def#3{#5#4}%
% \def#5##1##2% ##1=language
% {\ifcsname\??ml:#1:##1:##2\endcsname
% \csname\??ml:#1:##1:##2\endcsname
% \else\ifcsname\??la#4\s!default\endcsname
% \expandafter#5\csname\??la#4\s!default\endcsname{##2}%
% \else\ifcsname\??ml:#1:##2\endcsname
% \csname\??ml:#1:##2\endcsname
% \else\ifcsname\??ml:#1:\s!en:##2\endcsname
% \csname\??ml:#1:\s!en:##2\endcsname
% \else
% ##2%
% \fi\fi\fi\fi}%
\def#5##1##2% ##1=language
{\ifcsname\??ml:\currentlabelcategory#1:##1:##2\endcsname
\csname\??ml:\currentlabelcategory#1:##1:##2\endcsname
\else\ifcsname\??ml:#1:##1:##2\endcsname
\csname\??ml:#1:##1:##2\endcsname
\else\ifcsname\??la#4\s!default\endcsname
\expandafter#5\csname\??la#4\s!default\endcsname{##2}%
\else\ifcsname\??ml:\currentlabelcategory#1:##2\endcsname
\csname\??ml:\currentlabelcategory#1:##2\endcsname
\else\ifcsname\??ml:#1:##2\endcsname
\csname\??ml:#1:##2\endcsname
\else\ifcsname\??ml:\currentlabelcategory#1:\s!en:##2\endcsname
\csname\??ml:\currentlabelcategory#1:\s!en:##2\endcsname
\else\ifcsname\??ml:#1:\s!en:##2\endcsname
\csname\??ml:#1:\s!en:##2\endcsname
\else
##2%
\fi\fi\fi\fi\fi\fi\fi}%
\let#6\gobbleoneargument
\let#7\gobbleoneargument
\let#8\gobbletwoarguments
\let#9#3%
\else
\unexpanded\def#3{#5#4}%
\unexpanded\def#5##1##2%
{\ifcsname\??ml:#1:##1:##2\endcsname
\expandafter\let\expandafter\thetextprefix\csname\??ml:#1:##1:##2\endcsname
\else\ifcsname\??la#4\s!default\endcsname
\expandafter#5\csname\??la#4\s!default\endcsname{##2}%
\else\ifcsname\??ml:#1:##2\endcsname
\expandafter\let\expandafter\thetextprefix\csname\??ml:#1:##2\endcsname
\else\ifcsname\??ml:#1:\s!en:##2\endcsname
\expandafter\let\expandafter\thetextprefix\csname\??ml:#1:\s!en:##2\endcsname
\else
\let\thetextprefix\dummytextprefix
\fi\fi\fi\fi}%
\unexpanded\def#6##1{#3{##1}\expandafter\flushleftlabelclass \thetextprefix}%
\unexpanded\def#7##1{#3{##1}\expandafter\flushrightlabelclass\thetextprefix}%
\unexpanded\def#8##1{#3{##1}\expandafter\flushbothlabelclass \thetextprefix}% #2
\unexpanded\def#9##1{#3{##1}\expandafter\flushleftlabelclass \thetextprefix}%
\fi
\appendtoks
\let#6\firstofoneargument % to be checked
\let#7\firstofoneargument % to be checked
\let#8\firstofoneargument % to be checked
\let#9\firstofoneargument % to be checked
\to \simplifiedcommands
}
\let\flushleftlabelclass \firstoftwoarguments
\let\flushrightlabelclass\secondoftwoarguments
\def\flushbothlabelclass #1#2#3{#1#3#2}
\def\dummytextprefix {\empty\empty}
%D \macros
%D {headtext,
%D labeltext, leftlabeltext, rightlabeltext, labeltexts,
%D LABELTEXT, LEFTLABELTEXT, RIGHTLABELTEXT, LABELTEXTS}
%D
%D Once defined, head and label texts can be called upon using:
%D
%D \showsetup{headtext}
%D \showsetup{labeltext}
%D
%D The latter one has an upcased alternative \type{\LABELTEXT}.
%D
%D \macros
%D {presetheadtext,presetlabeltext}
%D
%D These macros enable us to automatically define head and label
%D texts without replacing predefined ones. They are internal macros.
\definelabelclass [head] [0] % titles
\definelabelclass [label] [0] % texts
\definelabelclass [mathlabel] [0] % functions
\definelabelclass [taglabel] [2] % tags
\appendtoks \let\labellanguage\currentlanguage \to \everycurrentdate
\newconstant\protecttextprefixes
\let\currenttextprefixtag \s!unknown
\let\currenttextprefixclass\s!unknown
\def\dosetupsometextprefix[#1][#2]%
{\ifsecondargument
\edef\currenttextprefixtag{\reallanguagetag{#1}}%
\processcommalist[#2]\dodosetupsometextprefix
\else
\edef\currenttextprefixtag{\reallanguagetag\currentmainlanguage}%
\processcommalist[#1]\dodosetupsometextprefix
\fi}
\def\dodosetupsometextprefix#1%
{\dododosetupsometextprefix[#1]}
\def\dododosetupsometextprefix[#1=#2]%
{\doassignsometextprefix{#1}[#2,,]}
\def\doassignsometextprefix#1%
{\ifcase\protecttextprefixes
% no checking
\expandafter\doassignsometextprefixyes
\or
% checking
\ifcsname\??ml:\currenttextprefixclass:\currenttextprefixtag:#1\endcsname
\expandafter\expandafter\expandafter\doassignsometextprefixnop
\else
\expandafter\expandafter\expandafter\doassignsometextprefixyes
\fi
\or
% simple assignment (a bit overkill but it fits in the whole)
\expandafter\doassignsometextprefixdumb
\fi{#1}}
\def\doassignsometextprefixyes#1[#2,#3,#4]%
{\edef\!!stringa{#2}%
\edef\!!stringb{#3}%
\ifx\!!stringb\empty
\ifx\!!stringa\empty
\expandafter\def\csname\??ml:\currenttextprefixclass:\currenttextprefixtag:#1\endcsname{\empty\empty}%
\else
\expandafter\def\csname\??ml:\currenttextprefixclass:\currenttextprefixtag:#1\endcsname{{#2}\empty}%
\fi
\else
\expandafter\def\csname\??ml:\currenttextprefixclass:\currenttextprefixtag:#1\endcsname{{#2}{#3}}%
\fi}
\def\doassignsometextprefixnop#1[#2]%
{}
\def\doassignsometextprefixdumb#1[#2,#3]%
{\expandafter\def\csname\??ml:\currenttextprefixclass:\currenttextprefixtag:#1\endcsname{#2}}
%D \macros
%D {translate}
%D
%D Sometimes macros contain language specific words that are to
%D be typeset. Such macros can be made (more) language
%D independant by using:
%D
%D \showsetup{translate}
%D
%D like for instance:
%D
%D \starttyping
%D \translate[en=something,nl=iets]
%D \stoptyping
%D
%D which expands to {\em something} or {\em iets}, depending on
%D de current language.
\def\dotranslate[#1]%
{\getparameters[\??lg][#1]%
\ifcsname\??lg\currentlanguage\endcsname
\csname\??lg\currentlanguage\endcsname
\else\ifcsname\??lg\s!en\endcsname
\csname\??lg\s!en\endcsname
\else
[translation #1]%
\fi\fi}
\unexpanded\def\translate
{\dosingleempty\dotranslate}
%D When used without argument, the last defined values are
%D used. This enables repetitive use like
%D
%D \starttyping
%D \en \translate\ means \nl \translate
%D \stoptyping
%D \macros
%D {assigntranslation}
%D
%D This macro is a system macro, and can be used to assign a
%D translation to a macro. Its form is:
%D
%D \starttyping
%D \assigntranslation[en=something,nl=iets]\to\command
%D \stoptyping
\def\assigntranslation[#1]\to#2%
{\getparameters[\??lg][#1]%
\edef#2{\csname\??lg\currentlanguage\endcsname}}
%D Now we load the labels:
\ifdefined\sixperemspace \else \def\sixperemspace{ } \fi % we could embed 0x2006 but it does not show up in a editor
%D Now we can load the labels:
\ctxlua{languages.labels.define()}
\protect \endinput
|
