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Re: [css3-fonts] ordinals

From: Henrik Andersson <henke@henke37.cjb.net>
Date: Wed, 10 Jul 2013 21:24:51 +0200
Message-ID: <51DDB503.2090202@henke37.cjb.net>
To: John Hudson <tiro@tiro.com>, www-style@w3.org
John Hudson skriver:
> On 10/07/13 1:18 AM, John Daggett wrote:
>> Note: ordinals are not superscripts even though they are often
>> confused with them.
> More precisely, an ordinal is a text unit consisting of a number
> followed by an alphabetic sequence, whose purpose is usually to
> adjectivise the number. Looked at another way, an ordinal is an
> abbreviated form of writing the adjectival form, e.g. 6th instead of
> sixth. In terms of display, there are three common conventions for
> ordinals: 1) using normal alphabetic glyphs, 2) using superscript
> alphabetic glyphs, 3) using underlined superscript alphabetic glyphs.
> The latter conventions is both locale and type design specific, so some
> fonts will provide for Iberian and Italian ordinals, e.g. 2ª and 8º,
> with underlined superscripts and others with plain superscripts.
> The OpenType Layout <ordn> features provide for mapping from regular
> lowercase letters to ordinal indicator letters, which may be identical
> to regular superscript letters, or might be underlined superscript
> variants. In practice, there is a fair amount of variety in how
> different font makers approach this feature, so results of applying
> <ordn> will vary. Some font makers map only the Iberian underlined {a}
> and {o} in the <ordn> feature, recommending to users to apply the <sups>
> feature if they want to use plain superscripts in ordinals.
> JH

Unicode defines some variant selector character points. Are they used here?
Received on Wednesday, 10 July 2013 19:25:29 UTC

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