Luatex 0.95.0 error with bidi and Hebrew

Luatex 0.95.0 error with bidi and Hebrew

[Rik Kabel]

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Version information:

    ConTeXt  ver: 2016.04.30 18:59 MKIV beta  fmt: 2016.4.30  int:
    english/english
    luajittex, 0.95.0 and luatex, 0.95.0

    running on Windows 10 x64

Error message:

    error:
    ...eXt/tex/texmf-context/tex/context/base/mkiv/font-otj.lua:1205:
    attempt to index local 'i' (a nil value)
    tex error       > tex error on line 7 in file
    C://Users/rik/Desktop/comp_body.tex: ?

Code:

    \setupdirections [bidi=global]
    \definefont [hebrew] [default] [lang=heb,ccmp=yes,script=hebr]
    \definefont [Hebrew] [sileotsr*hebrew sa .9]
    \starttext
      \startparagraph
       Hebrew : {\Hebrew רִ}
      \stopparagraph
    \stoptext

When the first line is removed, or the value of bidi changed to on, no 
error is thrown.

A single-font version of the code, for fonts that have Hebrew glyphs, 
fails with some fonts (libertine shown below), but works with others, 
for example, dejavu sans.

Code:

    \setupdirections [bidi=global]
    \setupbodyfont[libertine]
    \starttext
      \startparagraph
       Hebrew : רִ
      \stopparagraph
    \stoptext

My installation, or is this a bug?

-- 
Rik Kabel


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Re: Luatex 0.95.0 error with bidi and Hebrew

[Hans Hagen]

On 5/1/2016 8:19 AM, Akira Kakuto wrote:
>> Code:
>> ...
>>
>> My installation, or is this a bug?
>
> Confirmed.  By testing i, your example is compiled:
>
> if i then  -- line 1205 in font-otj.lua
>    local leftkern = i.leftkern
>    if leftkern and leftkern ~= 0 then
>        setfield(prev,"replace",newkern(leftkern)) -- maybe also leftkern
>    end
> end

i'll add that test

Hans

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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
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___________________________________________________________________________________

Luatex 0.95.0 error with bidi and Hebrew

[Akira Kakuto]

> Code:
> ...
>
> My installation, or is this a bug?

Confirmed.  By testing i, your example is compiled:

if i then  -- line 1205 in font-otj.lua
    local leftkern = i.leftkern
    if leftkern and leftkern ~= 0 then
        setfield(prev,"replace",newkern(leftkern)) -- maybe also leftkern
    end
end

Best,
Akira

___________________________________________________________________________________
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  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________