Date with three-letter month

Date with three-letter month

[richard.stephens]

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Hello All,

I have consulted the manuals and even the source (core-con.tex) but I 
cannot find a way of getting a three-letter month using the \date command.
For example, I would like to display today's date as 23-Apr-08.  This 
gives a short display suitable for use in a margin, but avoids the 
confusion of American (04-23-08) vs English (23-04-08) ordering when using 
numbers.
Can anyone help?

Thanks.

Richard.


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Re: Date with three-letter month

[Taco Hoekwater]

richard.stephens@converteam.com wrote:
> Hello All,
> 
> I have consulted the manuals and even the source (core-con.tex) but I 
> cannot find a way of getting a three-letter month using the \date command.
> For example, I would like to display today's date as 23-Apr-08.  This 
> gives a short display suitable for use in a margin, but avoids the 
> confusion of American (04-23-08) vs English (23-04-08) ordering when using 
> numbers.
> Can anyone help?

These are available (sort of)

   \currentdate[day,--,{\monthshort\normalmonth},--,year] % lowercase

or

   \currentdate[day,--,{\MONTHSHORT\normalmonth},--,year] % uppercase

Best wishes,
Taco

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Re: Date with three-letter month

[richard.stephens]

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I was so pleased with the result of Taco's and Aditya's suggestions, I 
have added them as examples to \date on texshow-web.

Richard

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Re: Date with three-letter month

[Arthur Reutenauer]

> why not completely remove locatel then ... probably also faster

  There would certainly be many reasons to do so ... if anything,
because ConTeXt has its own “localization” system.

> btw, nilling the locale is done in mkiv:
> 
>     os.setlocale(nil,nil) -- useless feature and even dangerous in luatex
> 
> one of the first lines of lua i wrote -)

  I trust you did ;-)

	Arthur
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Re: Date with three-letter month

[Hans Hagen]

Taco Hoekwater wrote:
> Arthur Reutenauer wrote:
>>> Indeed, I've already seen that: when setting the locale to fr_FR.utf8,
>>> without resetting it to C just after the tex.print(), then I get this
>>> error:
>>> !luaTeX error (file /opt/TeX-live/texmf-dist/fonts/opentype/public/lm/lmroman12-regular.otf): Parsing CFF DICT failed. (error=-1)
>>>  ==> Fatal error occurred, no output PDF file produced!
>>   Interesting :-)  I suppose some of the strings are localized (like,
>> decimal points being replaced by decimal commas).  I already had that
>> when writing a small script to output PDF by hand.
> 
> Just about all string-to|from-float C functions (like strtod, scanf,
> atof, printf) and even the string-to|from-integer ones (strtol, scanf),
> are automatically influenced by the locale.  The same is true for all
> tests like isspace() and isalpha(). It is intended to be helpful,
> but as a programmer I simply hate it.

why not completely remove locatel then ... probably also faster

btw, nilling the locale is done in mkiv:

    os.setlocale(nil,nil) -- useless feature and even dangerous in luatex

one of the first lines of lua i wrote -)

Hans

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                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
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Re: Date with three-letter month

[Taco Hoekwater]

Arthur Reutenauer wrote:
>> Indeed, I've already seen that: when setting the locale to fr_FR.utf8,
>> without resetting it to C just after the tex.print(), then I get this
>> error:
>> !luaTeX error (file /opt/TeX-live/texmf-dist/fonts/opentype/public/lm/lmroman12-regular.otf): Parsing CFF DICT failed. (error=-1)
>>  ==> Fatal error occurred, no output PDF file produced!
> 
>   Interesting :-)  I suppose some of the strings are localized (like,
> decimal points being replaced by decimal commas).  I already had that
> when writing a small script to output PDF by hand.

Just about all string-to|from-float C functions (like strtod, scanf,
atof, printf) and even the string-to|from-integer ones (strtol, scanf),
are automatically influenced by the locale.  The same is true for all
tests like isspace() and isalpha(). It is intended to be helpful,
but as a programmer I simply hate it.

Cheers, Taco
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Re: Date with three-letter month

[Arthur Reutenauer]

> Indeed, I've already seen that: when setting the locale to fr_FR.utf8,
> without resetting it to C just after the tex.print(), then I get this
> error:
> !luaTeX error (file /opt/TeX-live/texmf-dist/fonts/opentype/public/lm/lmroman12-regular.otf): Parsing CFF DICT failed. (error=-1)
>  ==> Fatal error occurred, no output PDF file produced!

  Interesting :-)  I suppose some of the strings are localized (like,
decimal points being replaced by decimal commas).  I already had that
when writing a small script to output PDF by hand.

  To be precise, on Mac OS 10.5 I need “fr_FR.UTF-8” to reproduce this
behaviour, not “fr_FR.utf8” which looks a bit suspicious.  I have
already heard that the French version of some mainstream Linux
distribution (Ubuntu, I think) set locales to the absurd value
“français”, which was a problem not only because it was absolutely not
standard, but also because the system couldn't guess what encoding the
‘ç’ was in!

	Arthur
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Re: Date with three-letter month

[Peter Münster]

On Thu, Apr 24 2008, Hans Hagen wrote:
> Peter Münster wrote:
> 
> > % engine=luatex
> > \startluacode
> > function Monthshort(m)
> > --	os.setlocale("fr_FR.utf8") -- just for testing...
> > 	tex.print(os.date("%b", os.time({day = 10, month = m, year = 2000})))
> > 	os.setlocale("C")
> > end
> > \stopluacode
> > \starttext
> > \ctxlua{Monthshort(\the\normalmonth)}
> > \stoptext
> 
> beware with locales ... mkiv assumes no locale (basecilly kills it)

Indeed, I've already seen that: when setting the locale to fr_FR.utf8,
without resetting it to C just after the tex.print(), then I get this
error:
!luaTeX error (file /opt/TeX-live/texmf-dist/fonts/opentype/public/lm/lmroman12-regular.otf): Parsing CFF DICT failed. (error=-1)
 ==> Fatal error occurred, no output PDF file produced!

(That's why I wrote "just for testing"...)

Cheers, Peter

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Re: Date with three-letter month

[Hans Hagen]

Peter Münster wrote:

> % engine=luatex
> \startluacode
> function Monthshort(m)
> --	os.setlocale("fr_FR.utf8") -- just for testing...
> 	tex.print(os.date("%b", os.time({day = 10, month = m, year = 2000})))
> 	os.setlocale("C")
> end
> \stopluacode
> \starttext
> \ctxlua{Monthshort(\the\normalmonth)}
> \stoptext

beware with locales ... mkiv assumes no locale (basecilly kills it)

Hans

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                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
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                                              | www.pragma-pod.nl
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Re: Date with three-letter month

[Peter Münster]

On Thu, Apr 24 2008, richard.stephens@converteam.com wrote:

> Thanks Taco.  This does the job.  All I need now is a version (\Monthshort 
> ??) which puts the first
> letter in uppercase, Jan , Feb, etc.

% engine=luatex
\startluacode
function Monthshort(m)
--	os.setlocale("fr_FR.utf8") -- just for testing...
	tex.print(os.date("%b", os.time({day = 10, month = m, year = 2000})))
	os.setlocale("C")
end
\stopluacode
\starttext
\ctxlua{Monthshort(\the\normalmonth)}
\stoptext

Cheers, Peter

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Re: Date with three-letter month

[richard.stephens]

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Aditya Mahajan wrote:
>See if this works (untested)
>
>\unprotect
>\setuplabeltext [\s!en] [\v!january  :\s!mnem=Jan.]
>\setuplabeltext [\s!en] [\v!february :\s!mnem=Feb.]
>\setuplabeltext [\s!en] [\v!march    :\s!mnem=Mar.]
>\setuplabeltext [\s!en] [\v!april    :\s!mnem=Apr.]
>\setuplabeltext [\s!en] [\v!may      :\s!mnem=May]
>\setuplabeltext [\s!en] [\v!june     :\s!mnem=Jun.]
>\setuplabeltext [\s!en] [\v!july     :\s!mnem=Jul.]
>\setuplabeltext [\s!en] [\v!august   :\s!mnem=Aug.]
>\setuplabeltext [\s!en] [\v!september:\s!mnem=Sep.]
>\setuplabeltext [\s!en] [\v!october  :\s!mnem=Oct.]
>\setuplabeltext [\s!en] [\v!november :\s!mnem=Nov.]
>\setuplabeltext [\s!en] [\v!december :\s!mnem=Dec.]
>\protect

That's fantastic!  Thanks for that.

Richard


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Re: Date with three-letter month

[Aditya Mahajan]

On Thu, 24 Apr 2008, richard.stephens@converteam.com wrote:

>>> I have consulted the manuals and even the source (core-con.tex) but I
>>> cannot find a way of getting a three-letter month using the \date
> command.
>>> For example, I would like to display today's date as 23-Apr-08.  This
>>> gives a short display suitable for use in a margin, but avoids the
>>> confusion of American (04-23-08) vs English (23-04-08) ordering when
> using
>>> numbers.
>>> Can anyone help?
>>
>> These are available (sort of)
>>
>>   \currentdate[day,--,{\monthshort\normalmonth},--,year] % lowercase
>>
>> or
>>
>>   \currentdate[day,--,{\MONTHSHORT\normalmonth},--,year] % uppercase
>>
>> Best wishes,
>> Taco
>
> Thanks Taco.  This does the job.  All I need now is a version (\Monthshort
> ??) which puts the first
> letter in uppercase, Jan , Feb, etc.


See if this works (untested)

\unprotect
\setuplabeltext [\s!en] [\v!january  :\s!mnem=Jan.]
\setuplabeltext [\s!en] [\v!february :\s!mnem=Feb.]
\setuplabeltext [\s!en] [\v!march    :\s!mnem=Mar.]
\setuplabeltext [\s!en] [\v!april    :\s!mnem=Apr.]
\setuplabeltext [\s!en] [\v!may      :\s!mnem=May]
\setuplabeltext [\s!en] [\v!june     :\s!mnem=Jun.]
\setuplabeltext [\s!en] [\v!july     :\s!mnem=Jul.]
\setuplabeltext [\s!en] [\v!august   :\s!mnem=Aug.]
\setuplabeltext [\s!en] [\v!september:\s!mnem=Sep.]
\setuplabeltext [\s!en] [\v!october  :\s!mnem=Oct.]
\setuplabeltext [\s!en] [\v!november :\s!mnem=Nov.]
\setuplabeltext [\s!en] [\v!december :\s!mnem=Dec.]
\protect
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Re: Date with three-letter month

[richard.stephens]

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>> I have consulted the manuals and even the source (core-con.tex) but I 
>> cannot find a way of getting a three-letter month using the \date 
command.
>> For example, I would like to display today's date as 23-Apr-08.  This 
>> gives a short display suitable for use in a margin, but avoids the 
>> confusion of American (04-23-08) vs English (23-04-08) ordering when 
using 
>> numbers.
>> Can anyone help?
>
>These are available (sort of)
>
>   \currentdate[day,--,{\monthshort\normalmonth},--,year] % lowercase
>
>or
>
>   \currentdate[day,--,{\MONTHSHORT\normalmonth},--,year] % uppercase
>
>Best wishes,
>Taco

Thanks Taco.  This does the job.  All I need now is a version (\Monthshort 
??) which puts the first
letter in uppercase, Jan , Feb, etc.

Thanks,

Richard


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