[NTG-context] bidi gone in serried enumeration

[NTG-context] bidi gone in serried enumeration

[Mohammad Hossein Bateni]

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Hi,

In the example below, when the "text" is non-English and we want a titled
serried enumeration, bidi stops working in rendering of title.

This works fine when I use other alternatives (top, left, etc.).
Setting headalign=r2l or using \setupalign[r2l] has no effect.

Best,
Mohammad

\setupdirections[bidi=global,method=unicode]
\definefontfeature[default][arabic]
\setupbodyfont[dejavu,sans]

\defineenumeration[Theorem]
\setupenumeration[Theorem][alternative=serried,title=yes,text=قضیه]

\starttext
\startTheorem[title=عنوان]
Test
\stopTheorem
\stoptext

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[NTG-context] Re: bidi gone in serried enumeration

[Hans Hagen via ntg-context]

On 2/22/2025 11:20 PM, Mohammad Hossein Bateni wrote:
> Hi,
> 
> In the example below, when the "text" is non-English and we want a 
> titled serried enumeration, bidi stops working in rendering of title.
> 
> This works fine when I use other alternatives (top, left, etc.).
> Setting headalign=r2l or using \setupalign[r2l] has no effect.
> 
> Best,
> Mohammad
> 
> \setupdirections[bidi=global,method=unicode]
> \definefontfeature[default][arabic]
> \setupbodyfont[dejavu,sans]
> 
> \defineenumeration[Theorem]
> \setupenumeration[Theorem][alternative=serried,title=yes,text=قضیه]
> 
> \starttext
> \startTheorem[title=عنوان]
> Test
> \stopTheorem
> \stoptext

Here is a hack but if we go that route

- we need to look at other (similar) cases
- we need to make examples and document it
- WS and I should be able to predict no side effects
- we need to get a clear picture of mixed lr / rl layouts

so in the end it comes down to you dedicating time on this. The problem 
with all these specific issues is that once a single issue is solved the 
user moves on (problem solved, right?) and we never converge to complete 
solutions and we en dup with hacks. In this case, beating some 
heuristics that interfere with e.g. explicit spacing and guesswork wrt 
fences.

\unprotect

\permanent\protected\def\foolbidimode
   {\ifzero\currentbidimode\else\bidilre\fi}

\protected\def\strc_enumerations_inject_extra_text_indeed
   {\begingroup
    \hskip{\constructionparameter\c!titledistance}% we listen to the 
headstyle
    \useconstructionstyleandcolor\c!titlestyle\c!titlecolor
    \constructionparameter\c!titlecommand
      {\foolbidimode % experiment
       \constructionparameter\c!titleleft
  
\clf_savedlisttitle{\currentconstructionmain}\currentconstructionlistentry\relax
       \constructionparameter\c!titleright
       }%
    \endgroup}

\protect

\enabletrackers[typesetters.directions.details]
\enabletrackers[typesetters.directions.list]

\setupdirections[bidi=global,method=unicode]
\definefontfeature[default][arabic]
\setupbodyfont[dejavu,sans]

\defineenumeration[Theorem]
\setupenumeration[Theorem][alternative=serried,title=yes,text=قضیه]

\starttext

\startTheorem[title=عنوان]
     test
\stopTheorem
\startTheorem[title=oeps]
     test
\stopTheorem

\setupenumeration[Theorem][alternative=serried,title=yes,text=oeps]

\startTheorem[title=عنوان]
     test
\stopTheorem
\startTheorem[title=oeps]
     test
\stopTheorem

\stoptext



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