Hi,
I added the patch but the output is not that expected because I get d = 4m = 02 y = 2019 instead of "4 février 2019"
Thank you
Fabrice

\mainlanguage[fr]

\setupbackgrounds
    [header]
    [text]
    [frame=off,
     topframe=off,
     bottomframe=on,
     framecolor=,
     rulethickness=1pt]

\defineframed
   [headerframed]
   [frame=off,
    height=fit,
    width=fit]

   \startsetups [headertext]
        \setupheadertexts
        [{
            \startframed [headerframed] [foregroundstyle=bold]
                \getvariable{headertext}{title} n\high{o}\,\getvariable{headertext}{number}
            \stopframed
        }]

    \setupheadertexts
        [{
            \startframed [headerframed] [align=flushleft,foregroundstyle=\ssx]
                \getvariable{headertext}{location}\\
                \getvariable{headertext}{time}
            \stopframed
        }]
        [{
            \startframed [headerframed] [align=flushright,foregroundstyle=\ssx]
                Lycée LA SALLE\\
                \date[d=\getvariable{headertext}{day},m=\getvariable{headertext}{month},y=\getvariable{headertext}{year}]
            \stopframed
        }]

\stopsetups

\setvariable{headertext}{set}{\directsetup{headertext}}

\setvariables
[headertext]
[title={Interrogation écrite},
   number={6},
   day={4},
   month={02},
   year={2019},
   location={Seconde GTE},
   time={55 minutes}]

   \starttext
     \input Knuth
   \stoptext

Le dim. 27 janv. 2019 à 17:54, Otared Kavian <otared@gmail.com> a écrit :

On 27 Jan 2019, at 17:30, Wolfgang Schuster <wolfgang.schuster.lists@gmail.com> wrote:

[…]
1. You don’t have to remake the format for patches in cont-new.mkiv because the file is loaded at runtime.

2. The patch works and I get “2019 januari 27” with your example.

Hi Wolfgang,

Thanks for the clarification about cont-new.mkiv.
The corrected cont-new.mkiv begins with

\unprotect

\def\syst_converters_check_date
{\edef\temp{\systemparameter\c!d}\scratchcounterone \ifx\temp\empty\normalday \else\temp\fi
\edef\temp{\systemparameter\c!m}\scratchcountertwo \ifx\temp\empty\normalmonth\else\temp\fi
\edef\temp{\systemparameter\c!y}\scratchcounterthree\ifx\temp\empty\normalyear \else\temp\fi}

\writestatus\m!system{beware: some patches loaded from cont-new.mkiv}

However I still get the wrong date with the example I sent, and Fabrice's example with \mainlanguage[fr], as well as with \mainlanguage[nl], gives an incorrect result (even though the result is correct with \mainlanguage[en]).

Best regards: OK
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