Allah does not ligate about arabic

[Mercury13]

Well, he did not write character data.
Simple ALLH.
0627+0644+0644+0647

[curya]

Probably important to mention that we discussed this issue here: Mercury13/unicodia#324

Some fonts ligate and some don't. Noto is one of the fonts that does not ligate.

@Mercury13 I actually copied the character data directly from that same Wikipedia page. Whatever font GitHub is using must be ligating it.

[Mercury13]

Ligate: Amiri (IDK where came from), KacstBook (IDK where came from), Scheherazade New (newest)
Do not ligate: Scheherazade (IDK where came from, replaced with New), Noto Naskh (newest)

[khaledhosny]

This is intentional, see #192

[Mercury13]

#192 says about LLH, I’ll check.
Amiri and KacstBook ligate. Scheherazade New does not. I think, the entire ALLH should ligate.

[curya]

@khaledhosny You said here that الله should ligate...

Edit: Wait. Copying اللّٰه from that post does ligate. But copying from my original post above does not.
????

[khaledhosny]

@khaledhosny You said here that الله should ligate...

The sequence there is:
ARABIC LETTER ALEF ا
ARABIC LETTER LAM ل
ARABIC LETTER LAM ل
ARABIC SHADDA ّ
ARABIC LETTER SUPERSCRIPT ALEF ٰ
ARABIC LETTER HEH ه

[curya]

It appears that the ligature is not any different from literally typing it out manually. In which case, why even have the ligature at all?

Is there a real world case where you would purposely want to type Allah without the shadda and superscript alef?

[khaledhosny]

It appears that the ligature is not any different from literally typing it out manually. In which case, why even have the ligature at all?

That would be a bug.

Is there a real world case where you would purposely want to type Allah without the shadda and superscript alef?

The sequence might be a different word/part of word in other languages.

[curya]

That would be a bug.

So it is!

Ligatures on on the left. Ligatures turned off on the right. It seems that this bug only affects Noto Naskh Arabic. It's the only one that doesn't change.

Edit: Oh wait! It works for Naskh if you turn "discretionary ligatures" on!