Numerals in mkiv

Numerals in mkiv

[Otared Kavian]

Hi Hans,

It seems that Arabic or Persian numerals (for instance in section  
numbers) in mkiv begin at 0, instead of 1… well it is true that in  
Mathematics natural integers begin with 0, but not in books in those  
languages :-)
Here is a minimal example:

\setupdirections[bidi=global]
\pagedir TRT
\bodydir TRT
\pardir TRT
\textdir TRT

\starttypescript[serif][arabic]
\usetypescript[serif][fallback]
\definefontsynonym [Serif][name:SimpleNaskhi] [features=arabic]
\stoptypescript

\starttypescript  [arabic]
   \definetypeface [arabic][rm] [serif] [arabic]  [default]
\stoptypescript

\usetypescript[arabic]
\setupbodyfont[arabic,12pt]

%%%%%%%%%%%%%%%%%%
% heading numbers:
    \setuphead[section][conversion=persiannumerals]  
%,numberstyle={arabic}]
%%%%%%%%%%%%%%%%%%%

\starttext
\dorecurse{5}{%
\section{بخش}\par
آزمایش
}
\stoptext

Pardon me if I have been missing something already explained elsewhere.

Best regards: OK
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Re: Numerals in mkiv

[Hans Hagen]

Otared Kavian wrote:
> Hi Hans,
> 
> It seems that Arabic or Persian numerals (for instance in section 
> numbers) in mkiv begin at 0, instead of 1… well it is true that in 
> Mathematics natural integers begin with 0, but not in books in those 
> languages :-)
> Here is a minimal example:
> 
> \setupdirections[bidi=global]
> \pagedir TRT
> \bodydir TRT
> \pardir TRT
> \textdir TRT
> 
> \starttypescript[serif][arabic]
> \usetypescript[serif][fallback]
> \definefontsynonym [Serif][name:SimpleNaskhi] [features=arabic]
> \stoptypescript
> 
> \starttypescript  [arabic]
>   \definetypeface [arabic][rm] [serif] [arabic]  [default]
> \stoptypescript
> 
> \usetypescript[arabic]
> \setupbodyfont[arabic,12pt]
> 
> %%%%%%%%%%%%%%%%%%
> % heading numbers:
>    \setuphead[section][conversion=persiannumerals] %,numberstyle={arabic}]
> %%%%%%%%%%%%%%%%%%%
> 
> \starttext
> \dorecurse{5}{%
> \section{بخش}\par
> آزمایش
> }
> \stoptext
> 
> Pardon me if I have been missing something already explained elsewhere.

it all depends how we define conversions

- numeric (1,2,3,4)
- alphabetic (a,b,c,d)

numeric is used in chapter numbering and alphabetic for instance in 
itemized (ok, all can be used everywhere but those are most common)

so, the question is ... how do we define the commands ... maybe we need:


\def\abjadnumerals     #1{\ctxlua{converters.abjadnumerals(\number#1)}}
\def\abjadnodotnumerals#1{\ctxlua{converters.abjadnodotnumerals(\number#1)}}
\def\abjadnaivenumerals#1{\ctxlua{converters.abjadnumerals(\number#1)}}

\defineconversion [arabicnumerals]    [\abjadnumerals]
\defineconversion [persiannumerals]   [\abjadnumerals]

Idris ... any ideas about this? We never finished this so it's about time

Hans


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               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Numerals in mkiv

[Otared Kavian]

On 18 avr. 09, at 14:15, Hans Hagen wrote:

> […]
> it all depends how we define conversions
>
> - numeric (1,2,3,4)
> - alphabetic (a,b,c,d)
>
> numeric is used in chapter numbering and alphabetic for instance in  
> itemized (ok, all can be used everywhere but those are most common)
>
> so, the question is ... how do we define the commands ... maybe we  
> need:
>
>
> \def\abjadnumerals      
> #1{\ctxlua{converters.abjadnumerals(\number#1)}}
> \def 
> \abjadnodotnumerals 
> #1{\ctxlua{converters.abjadnodotnumerals(\number#1)}}
> \def 
> \abjadnaivenumerals#1{\ctxlua{converters.abjadnumerals(\number#1)}}
>
> \defineconversion [arabicnumerals]    [\abjadnumerals]
> \defineconversion [persiannumerals]   [\abjadnumerals]
>
> Idris ... any ideas about this? We never finished this so it's about  
> time
>
> Hans


Hi Hans,

What you are saying about conversions makes sense indeed, and the code  
you sent works fine as far as conversion to alphabetic numeration is  
considered (the "abjad" numbering would correspond to the use of  
"roman" numbering in items and pages, such as i, ii, iii, iv, etc, or  
to the "alphabetic" numbering a, b, c, d, etc).

However my point is slightly different: the ordinal numbers in mkiv,  
while using Arabic or Persian, begin at zero instead of beginning at  
one. Here is an example:

\setupdirections[bidi=global]
\pagedir TRT
\bodydir TRT
\pardir TRT
\textdir TRT

\starttypescript     [serif][arabic]
  \usetypescript      [serif][fallback]
  \definefontsynonym  [Serif][name:SimpleNaskhi] [features=arabic]
\stoptypescript

\starttypescript  [arabic]
   \definetypeface [arabic][rm] [serif] [arabic]  [default]
\stoptypescript

\usetypescript[arabic]
\setupbodyfont[arabic,12pt]

\starttext
\dorecurse{10}{\recurselevel\quad\persiannumerals{\recurselevel}\par}
\stoptext

In front of "1" you'll see the Arabic or Persian "0" that is ".",  
which is incorrect.

Thanks again for your attention,
Best regards: OK
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________