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Re: [1.2T-LC] i18n comment 1: Explanation of ligatures (ISSUE-2102)

From: Doug Schepers <schepers@w3.org>
Date: Mon, 03 Nov 2008 12:48:39 -0500
Message-ID: <490F3977.70303@w3.org>
To: Richard Ishida <ishida@w3.org>
CC: www-svg@w3.org, public-i18n-core@w3.org

Hi, Richard-

Thanks very much for the suggested additions, that is most helpful.  I
have added them all, as requested, and marked the issue as closed, with
your disposition as satisfied.  Please let us know if this works for you.

Thanks-
-Doug

Richard Ishida wrote (on 11/3/08 11:45 AM):
> Here are some suggestions for wording in 10.2:
> 
> [1] Remove the parens from "(Note that for proper rendering of many
> languages, ligatures are required for certain character
> combinations.)" and tack on to the end "and are not optional
> typographic features.  For example, this is the case for most
> languages throughout South and South East Asia."
> 
> [2] Add another bullet point, perhaps in 3rd position, that says
> something along the lines of
> 
> [[ Context-sensitive glyph positioning - In many scripts, the precise
> positioning of the glyph for a given character (especially
> diacritics) will vary according to the visual context.  For example,
> Thai tone marks are rendered above the base consonant, but need to be
> moved upwards further if a vowel-sign also appears above the base
> consonant. The same character is used in memory, but the final
> location of the glyph is sensitive to context. ]]
> 
> 
> 
> [3] Add another bullet just after the one above something like...
> 
> [[ Complex positioning of character glyphs - In scripts, such as
> those used for Indian languages, a combining vowel character that
> appears after a base consonant in memory may be displayed to the left
> of the base consonant, or on two sides of the base consonant, ie. the
> left-most glyph in rendered text may not be the first character in a
> text element.  Indeed, such vowel characters may be rendered to the
> left of, or on more than one side of, a <em>cluster</em> of
> consonants that ends with the character they follow in memory.  On
> the other hand, a Hindi RA character at the beginning of a consonant
> cluster in memory may be displayed over a following vowel sign to the
> right of the following syllabic cluster.  The location in which
> glyphs are displayed, from left to right, in these scripts can differ
> significantly from the order of the characters in memory. ]]
> 
> 
> If you add some additional wording along the lines of the above, and
> given the changes already made,  I believe you will satisfy our
> comment.
> 
> Thank you.
> 
> RI
> 
> 
Received on Monday, 3 November 2008 17:48:49 GMT

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