Re: How to test which is current "mainlanguage"?

[Wolfgang Schuster <schuster.wolfgang@gmail.com>]

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> Lukáš Procházka <mailto:LPr@pontex.cz>
> 31. Dezember 2015 um 11:07
> Hello,
>
> how to detect which language set by \mainlanguage[xy] is active?
> How to detect it by a) ConTeXt and b) Lua?
>
> Something like:
>
> \mainlanguage[cz]
>
> \ifmainlanguage{cz}
>   Do someting
> \fi
>
> and
>
> if context.languages.active() == "cz" then
>   -- Do somthing
> end
You can use the modes mechanism for this because you can use **<TAG> to 
check for the main language (set by \mainlanguage) and *<TAG> for the 
current language (set by \language).

\mainlanguage[cs]
%\language[en]

\starttext

\doifelsemode{**cs}{The main language is Czech.}{The main language is 
“\currentmainlanguage”.}

\startluacode
if tex.modes["**cs"] then
     context("The main language is Czech.")
else
     context("The main language is “\\currentmainlanguage”.")
end
\stopluacode

\blank

\doifelsemode{*cs}{The current language is Czech.}{The current language 
is “\currentlanguage”.}

\startluacode
if tex.modes["*cs"] then
     context("The current language is Czech.")
else
     context("The current language is “\\currentlanguage”.")
end
\stopluacode

\stoptext

Wolfgang

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