No full Unicode-Support in ConTeXt?

No full Unicode-Support in ConTeXt?

["H. Özoguz"]

Hello there,

I wonder why working with fonts is soo hard in ConText (much easier in 
Word or CorelDraw).

See this following font (free, opensource): 
http://fonts.qurancomplex.gov.sa/wp-content/uploads/2012/06/UthmanTN1-Ver10.zip

And try now this Context-Code:

\definefont[arabic][file:UthmanTN1Ver10.ttf*arabic at 15pt]


\starttext

\arabic\setupalign[r2l]


مِن قَبْلُ هُدًى لِّلنَّاسِ وَأَنزَلَ ٱلْفُرْقَانَۗ إِنَّ ٱلَّذِينَ كَفَرُوا بِـَٔايَـٰتِ ٱللَّهِ لَهُمْ عَذَابٌ شَدِيدٌۗ 
وَٱللَّهُ عَزِيزٌ ذُو ٱنتِقَامٍ

\stoptext


You see, this little signs above the letters are vanished in the PDF. 
But they are set in CoreDraw (for example). Why, what is the problem?

Similar problems you can see with another font, no problem in CorelDraw, 
but problems in ConText.
Hope for help.

Thank you very much.

Huseyin









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Re: No full Unicode-Support in ConTeXt?

[Hans Hagen]

On 11/24/2013 4:41 PM, "H. Özoguz" wrote:
> Hello there,
>
> I wonder why working with fonts is soo hard in ConText (much easier in
> Word or CorelDraw).
>
> See this following font (free, opensource):
> http://fonts.qurancomplex.gov.sa/wp-content/uploads/2012/06/UthmanTN1-Ver10.zip
>
>
> And try now this Context-Code:
>
> \definefont[arabic][file:UthmanTN1Ver10.ttf*arabic at 15pt]
>
>
> \starttext
>
> \arabic\setupalign[r2l]
>
>
>	شَدِيدٌۗ
> وَٱللَّهُ عَزِيزٌ ذُو ٱنتِقَامٍ
>
> \stoptext
>
>
> You see, this little signs above the letters are vanished in the PDF.
> But they are set in CoreDraw (for example). Why, what is the problem?
>
> Similar problems you can see with another font, no problem in CorelDraw,
> but problems in ConText.
> Hope for help.

not at all, as you show way more input here as in the jpeg ... so first 
make a minimal example

also "another font" is not revealing either

anyway,

\definefont[arabic][file:arabtype.ttf*arabic at 15pt]

\starttext
     \arabic\setupalign[r2l] شَدِيدٌۗ
\stoptext

shows me a "little sign" above the word

Hans




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                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
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___________________________________________________________________________________

Re: No full Unicode-Support in ConTeXt?

[Hans Hagen]

On 11/24/2013 6:09 PM, Hans Hagen wrote:

> shows me a "little sign" above the word

the only issue i see is that this otf font has 2048 units and gets 
scaled wrong (in luatex's backend probably)

definefont[arabica][file:uthmantn1-ver10.otf*arabic at 45pt]
\definefont[arabicb][file:arabtype.ttf*arabic at 45pt]

\starttext
     \setupalign[r2l]
     \arabica شَدِيدٌۗ\par
     \arabicb شَدِيدٌۗ\par
     \page
     \showotfcomposition{file:uthmantn1-ver10.otf*arabic}{r2l}{شَدِيدٌۗ}
     \page
     \showotfcomposition{file:arabtype.ttf*arabic*arabic}{r2l}{شَدِيدٌۗ}
\stoptext

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
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___________________________________________________________________________________

Re: No full Unicode-Support in ConTeXt?

[Khaled Hosny]

On Sun, Nov 24, 2013 at 06:31:27PM +0100, Hans Hagen wrote:
> On 11/24/2013 6:09 PM, Hans Hagen wrote:
> 
> >shows me a "little sign" above the word
> 
> the only issue i see is that this otf font has 2048 units and gets scaled
> wrong (in luatex's backend probably)

It is actually a TTF font but the extension confuses ConTeXt (we
discussed this very issue before).
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Re: No full Unicode-Support in ConTeXt?

[Hans Hagen]

On 11/24/2013 6:38 PM, Khaled Hosny wrote:
> On Sun, Nov 24, 2013 at 06:31:27PM +0100, Hans Hagen wrote:
>> On 11/24/2013 6:09 PM, Hans Hagen wrote:
>>
>>> shows me a "little sign" above the word
>>
>> the only issue i see is that this otf font has 2048 units and gets scaled
>> wrong (in luatex's backend probably)
>
> It is actually a TTF font but the extension confuses ConTeXt (we
> discussed this very issue before).

afaik it passes the right unit value so the backend gets confused ... 
okay, we could probably specify a font to be truetype when units ~= 1000 
but still ... i have no problem with forcing

if units ~= 1000 and format ~= "truetype" then
     properties.format = "truetype"
end

if we can assume all opentype fonts to be 1000

Hans

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                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: No full Unicode-Support in ConTeXt?

[Khaled Hosny]

On Sun, Nov 24, 2013 at 06:48:05PM +0100, Hans Hagen wrote:
> On 11/24/2013 6:38 PM, Khaled Hosny wrote:
> >On Sun, Nov 24, 2013 at 06:31:27PM +0100, Hans Hagen wrote:
> >>On 11/24/2013 6:09 PM, Hans Hagen wrote:
> >>
> >>>shows me a "little sign" above the word
> >>
> >>the only issue i see is that this otf font has 2048 units and gets scaled
> >>wrong (in luatex's backend probably)
> >
> >It is actually a TTF font but the extension confuses ConTeXt (we
> >discussed this very issue before).
> 
> afaik it passes the right unit value so the backend gets confused ... okay,
> we could probably specify a font to be truetype when units ~= 1000 but still
> ... i have no problem with forcing
> 
> if units ~= 1000 and format ~= "truetype" then
>     properties.format = "truetype"
> end
> 
> if we can assume all opentype fonts to be 1000

No we can't. What we really need is a way for the fontloader to expose
the format in the font table, because it already knows it.

Regards,
Khaled
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Re: No full Unicode-Support in ConTeXt?

[Hans Hagen]

On 11/24/2013 6:50 PM, Khaled Hosny wrote:
> On Sun, Nov 24, 2013 at 06:48:05PM +0100, Hans Hagen wrote:
>> On 11/24/2013 6:38 PM, Khaled Hosny wrote:
>>> On Sun, Nov 24, 2013 at 06:31:27PM +0100, Hans Hagen wrote:
>>>> On 11/24/2013 6:09 PM, Hans Hagen wrote:
>>>>
>>>>> shows me a "little sign" above the word
>>>>
>>>> the only issue i see is that this otf font has 2048 units and gets scaled
>>>> wrong (in luatex's backend probably)
>>>
>>> It is actually a TTF font but the extension confuses ConTeXt (we
>>> discussed this very issue before).
>>
>> afaik it passes the right unit value so the backend gets confused ... okay,
>> we could probably specify a font to be truetype when units ~= 1000 but still
>> ... i have no problem with forcing
>>
>> if units ~= 1000 and format ~= "truetype" then
>>      properties.format = "truetype"
>> end
>>
>> if we can assume all opentype fonts to be 1000
>
> No we can't. What we really need is a way for the fontloader to expose
> the format in the font table, because it already knows it.

ok, so we need a "format" key in the raw font table ("truetype" or 
"opentype")

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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