oddball "Yogh" Character not displayed

Thane1 · 05-29-2013, 10:56 PM

Reading a new side loaded book overhere and one of the characters isn't being displayed correctly regardless of the font settings. The character is yogh (some relic from old English - http://en.wikipedia.org/wiki/Yogh) and sort of looks like a stylized italic number "3". From ADE and Calibre's viewer the character is displayed correctly, however on either my Mini or Touch the character appears as a big outlined box, even using the default font setting.

Does Kobo's built in font set not cover all the characters? (Granted I doubt if this particular character gets much use at all)?

PeterT · 05-29-2013, 11:11 PM

Nope... Many of the Kobo fonts do not contain all characters.

Try using Ryumin or Gothic... I've had some success with those.

I've been raising the point that not even fractions seem to be recognized in all the fonts.

Amasis: 1/4, 1/2, 3/4, rest are a rectangle with a x inside
Avenir Next: 1/4, 1/2, 3/4, rest are a rectangle with a question mark inside
Caecilia: 1/4, 1/2, 3/4, rest are a rectangle with a question mark inside
Georgia: 1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, rest are a square
Gil Sans: 1/4, 1/2, 3/4, rest are a square
Kobo Nickel: 1/4, 1/2, 3/4, rest are a square
Malabar: 1/4, 1/2, 3/4, rest are a rectangle with a x inside
Gothic: 1/8, 1/4, 1/3, 3/8, 1/2, 5/8, 2/3, 3/4, 7/8 - Correct
Ryumin: 1/8, 1/4, 1/3, 3/8, 1/2, 5/8, 2/3, 3/4, 7/8 - Correct
OpenDyslexic: 1/4, 1/2, 3/4, rest are an empty rectangle with a thick bottom line

You could also try using the Kobo Extended driver and converting this to a kEpub. The kEpub renderer handles missing symbols differently, and displays them from one of the other fonts (Ryumin I think).

Ripplinger · 05-29-2013, 11:43 PM

Quote:

Originally Posted by PeterT

...
You could also try using the Kobo Extended driver and converting this to a kEpub. The kEpub renderer handles missing symbols differently, and displays them from one of the other fonts (Ryumin I think).

It always bugged me why my Sonys displayed missing fonts in epubs even with the same fonts and the Kobo can't. Sony must do for epubs what Kobo does for kepubs. Thanks for that bit of knowledge.

It's a shame though that Kobo can't do the same for epubs.

DNSB · 05-30-2013, 12:01 AM

Quote:

Originally Posted by Thane1

Reading a new side loaded book overhere and one of the characters isn't being displayed correctly regardless of the font settings. The character is yogh (some relic from old English - http://en.wikipedia.org/wiki/Yogh) and sort of looks like a stylized italic number "3". From ADE and Calibre's viewer the character is displayed correctly, however on either my Mini or Touch the character appears as a big outlined box, even using the default font setting.

Does Kobo's built in font set not cover all the characters? (Granted I doubt if this particular character gets much use at all)?

The built in fonts have rather poor coverage for non-standard characters. If you want better coverage, I'd suggest either Charis SIL, Linux Libertine or DejaVu Serif. There are other choices as well if you want even more unicode glyph coverage. Code2000 is the font I use for those situations.

See the modified fonts sticky for more information.

I did some quick testing. None of the Kobo's builtin fonts would display yogh though Gothic and Ryumin would display a lower case ezh. Both Charis SIL and Linux Libertine displayed yogh and ezh as did the DejaVu font family. Code2000 displayed both as well but sadly, it's not the best looking font and lacks the italic/bold/bold italic variants.

Regards,
David

Thane1 · 05-30-2013, 10:17 PM

Ok thanks for the feedback and possible solutions, I will have try loading up alternate fonts.

I ran into this sort of issue once before with a certain Vietnamese version of the letter e with double set of diacritical marks, in that case using “default” for the page font made the character visible, unfortunately this didn’t work.

I wonder if its possible for Kobo to include a sort of fallback font set, which gets used only if the selected font lacks the required character; wishful thinking perhaps.

05-29-2013, 10:56 PM	#1
Thane1 Connoisseur Posts: 73 Karma: 95862 Join Date: Jan 2013 Device: Kobo Touch, Kobo Mini	oddball "Yogh" Character not displayed Reading a new side loaded book overhere and one of the characters isn't being displayed correctly regardless of the font settings. The character is yogh (some relic from old English - http://en.wikipedia.org/wiki/Yogh) and sort of looks like a stylized italic number "3". From ADE and Calibre's viewer the character is displayed correctly, however on either my Mini or Touch the character appears as a big outlined box, even using the default font setting. Does Kobo's built in font set not cover all the characters? (Granted I doubt if this particular character gets much use at all)?

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05-29-2013, 11:11 PM	#2
PeterT Grand Sorcerer Posts: 12,166 Karma: 73448616 Join Date: Nov 2007 Location: Toronto Device: Nexus 7, Clara, Touch, Tolino EPOS	Nope... Many of the Kobo fonts do not contain all characters. Try using Ryumin or Gothic... I've had some success with those. I've been raising the point that not even fractions seem to be recognized in all the fonts. Amasis: 1/4, 1/2, 3/4, rest are a rectangle with a x inside Avenir Next: 1/4, 1/2, 3/4, rest are a rectangle with a question mark inside Caecilia: 1/4, 1/2, 3/4, rest are a rectangle with a question mark inside Georgia: 1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, rest are a square Gil Sans: 1/4, 1/2, 3/4, rest are a square Kobo Nickel: 1/4, 1/2, 3/4, rest are a square Malabar: 1/4, 1/2, 3/4, rest are a rectangle with a x inside Gothic: 1/8, 1/4, 1/3, 3/8, 1/2, 5/8, 2/3, 3/4, 7/8 - Correct Ryumin: 1/8, 1/4, 1/3, 3/8, 1/2, 5/8, 2/3, 3/4, 7/8 - Correct OpenDyslexic: 1/4, 1/2, 3/4, rest are an empty rectangle with a thick bottom line You could also try using the Kobo Extended driver and converting this to a kEpub. The kEpub renderer handles missing symbols differently, and displays them from one of the other fonts (Ryumin I think).

05-30-2013, 10:17 PM	#5
Thane1 Connoisseur Posts: 73 Karma: 95862 Join Date: Jan 2013 Device: Kobo Touch, Kobo Mini	Ok thanks for the feedback and possible solutions, I will have try loading up alternate fonts. I ran into this sort of issue once before with a certain Vietnamese version of the letter e with double set of diacritical marks, in that case using “default” for the page font made the character visible, unfortunately this didn’t work. I wonder if its possible for Kobo to include a sort of fallback font set, which gets used only if the selected font lacks the required character; wishful thinking perhaps.

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