[NTG-context] Re: self defined conversion in \date
Peter Münster schrieb am 30.05.2024 um 23:22:
On Thu, May 30 2024, Wolfgang Schuster wrote:
The \date mechanism can only use conversions which are defined on the Lua side
Ok. How please?
This does not work:
--8<---cut here---start->8---
\startluacode
-- from https://wiki.contextgarden.net/Command/defineconversion:
interfaces.implement {
name = "FRdate",
public= true,
arguments = "string",
actions =
function(s)
local n = tonumber(s)
if n == 1 then
context"1\\ier"
else
context(s)
end
end
}
\stopluacode
\def\ier{\highordinalstr{er}}
\mainlanguage[fr]
\defineconversion[frd][\FRdate]
\setuplanguage[fr][date={day:frd,\ ,month,\ ,year}]
\starttext
Conversion: \convertnumber{frd}{1}, \convertnumber{frd}{2} (OK)\\
Dates: \date[d=1], \date[d=2] (not OK)
\stoptext
--8<---cut here---end--->8---
\startluacode
function converters.peter(n)
return "X-" .. converters.romannumerals(n)
end
\stopluacode
\starttext
\date[d=1][X-,day:romannumerals]
\date[d=1][day:peter]
\stoptext
Wolfgang
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[NTG-context] Re: self defined conversion in \date
On Thu, May 30 2024, Wolfgang Schuster wrote:
> The \date mechanism can only use conversions which are defined on the Lua side
Ok. How please?
This does not work:
--8<---cut here---start->8---
\startluacode
-- from https://wiki.contextgarden.net/Command/defineconversion:
interfaces.implement {
name = "FRdate",
public= true,
arguments = "string",
actions =
function(s)
local n = tonumber(s)
if n == 1 then
context"1\\ier"
else
context(s)
end
end
}
\stopluacode
\def\ier{\highordinalstr{er}}
\mainlanguage[fr]
\defineconversion[frd][\FRdate]
\setuplanguage[fr][date={day:frd,\ ,month,\ ,year}]
\starttext
Conversion: \convertnumber{frd}{1}, \convertnumber{frd}{2} (OK)\\
Dates: \date[d=1], \date[d=2] (not OK)
\stoptext
--8<---cut here---end--->8---
--
Peter
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[NTG-context] Re: self defined conversion in \date
Peter Münster schrieb am 30.05.2024 um 13:59:
Hi,
It seems, that you cannot use self defined conversions in \date:
\defineconversion[mytest][X-\romannumerals]
\starttext
Self defined conversion: \convertnumber{mytest}{1} (OK)\\
Predefined conversion in date: \date[d=1][day:a] (OK)\\
Self defined conversion in date: \date[d=1][day:mytest] (not OK)
\stoptext
Is this a bug, or a feature?
How could one use self defined conversions in \date please?
The \date mechanism can only use conversions which are defined on the
Lua side but your custom conversion is only available on the TeX side.
You can however set the "X-" prefix as normal string in the output of
\date and use a predefined conversion.
\starttext
\date[d=1][X-,day:r]
\date[d=1][X-,day:romannumerals]
\stoptext
Wolfgang
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