Re: Arabic alif-lam ligature

From: Jukka K. Korpela <>
Date: Wed, 09 Nov 2011 18:23:26 +0200

11/8/2011 7:24 PM, Andreas Prilop wrote:

> There is a non-standard alif-lam ligature in the Arabic script.
> The logo of Al Arabiya shows an example.

The logo as on page looks like a rather special
way of writing the name, but that’s what logos are.

> Which fonts have such an alif-lam ligature?

Do some fonts have it, and does the ligature appear in text rendering,
as opposite to display of logos? I would expect it to be a special
rendering style, much like in handwriting we produce combinations of
letters that correspond to ligatures.

> Should I write U+0627 ZWJ U+0644 to obtain the ligature? Or
> should I write U+0627 ZWNJ U+0644 to prevent the ligature?

Those would be the character-level tools. But normally I would expect
people to use higher-level protocols, such as commands in a typesetting
program or style sheets applied to entire blocks of text.

> Or is alif-lam outside the scope of Unicode and just
> regarded as a logo?

It’s not a logo as such, but any use that is restricted to logos should
probably be considered as external to Unicode. If there are fonts that
contain an alif-lam ligature, then I would expect it to be regarded as a
possible rendering of a character pair. Typographic ligatures are
normally encoded as characters in Unicode only if they exist as
characters in some other character code in use.

Received on Wed Nov 09 2011 - 10:30:41 CST

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