bugFree UCS Outline Fonts - Bugs: bug #37702, Sinhala: support Pali and Sanskrit...


bug #37702: Sinhala: support Pali and Sanskrit conjuncts

Submitted by:  Steve White <Stevan_White>
Submitted on:  Fri 09 Nov 2012 12:23:28 PM UTC  
Category:  character range Severity:  1 - Wish
Item Group:  character substitution issue Status:  Postponed
Privacy:  Public Assigned to:  Steve White <Stevan_White>
Open/Closed:  Open Release:  2012-05-03

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Sun 02 Dec 2012 10:38:39 AM UTC, comment #2:

Hi Pablo,

> Sorry, but I don't understand what you mean with my really primitive
> @font-face.

I said if the device is properly using the CSS and loading the font, yet failing to implement kerning, then the font renderer (on your device) might be really primitive.

I did not call your code "primitive".

> And with being 100% sure whether the font is loaded by the
> ereader.
> @font-face {
> font-family: "serifita";
> font-style: normal;
> font-weight: normal;
> src:url("FreeSerif.otf");
> }
> What is wrong here? Why is surprising that the ereader loads the font?

I think that is correct syntax. It would help to see a photo of how your reader renders your text (like the one I attached showing my reader last week.)

It is not surprising that the e-reader would load the font (why do you ask?)

It is disappointing that even today some e-reader software do not support embedded fonts.

Furthermore, a few months ago, I made a SourceForge project with test files for EPUB. Have a look.

> I'm afraid that the different features with different ereaders lies in the
> ePub reading software and not that much on the ereader itself.

There is
the ePub reading software,
the operating system of the ereader,
the hardware of the ereader.

Font rendering libraries might be present in either the ePub reader software, or the operating system, or both.

I don't know how much Adobe's reader relies on the underlying OS for font rendering.

Maybe you could research forums or blogs about your particular e-reader.

> The issue is that when vendors release new firmware updates for their devices,
> they don't normally include an updated version of the reading software. I
> don't know whether they aren't aware of nasty bugs, don't mind or don't want
> to pay for what Adobe could consider a new version (instead of a bugfix
> release).

> But maybe I can find why is the bug caused and try to workaround it (I mean
> with FreeSerif Bold). I had a similar problem with another bug that consisted
> in Adobe Reader Mobile not being able to display fonts with an OS/2 table
> numbered version 4.

My E-reader also says it has Adobe Reader Mobile. But I have no idea how to determine the version of that software.

Also, the rendering of this e-reader is ... spectacularly good.
There are some glitches, but text with OpenType fonts properly uses all the font features, and really looks great.

Steve White <Stevan_White>
Project AdministratorIn charge of this item.
Sat 01 Dec 2012 11:23:16 AM UTC, comment #1:

Note this appears to be problematic in modern Windows systems.
They do not seem to be following the MS documentation regarding "touching" letters, and there are problems with conjuncts too. This affects MS own fonts as well...

Steve White <Stevan_White>
Project AdministratorIn charge of this item.
Fri 09 Nov 2012 12:23:28 PM UTC, original submission:

Many Buddhist scriptures are written with Sinhala in the ancient languages Pali and Sanskrit.

The main difference in Sinhala is that those languages use far more conjunct and "touching" consonants.

needed: a listing of those consonant pairs.

note: a minimal set of conjunct and touching letters is specified in the Sri Lanka standard SLS 1134.

note: the OpenType language code for Pali is 'PAL ' (not supported by current FontForge)

Steve White <Stevan_White>
Project AdministratorIn charge of this item.


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    Date Changed by Updated Field Previous Value => Replaced by
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