Re: Accents of the same combining class displayed side by side

From: Doug Ewell (
Date: Thu Nov 06 2008 - 20:41:56 CST

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    As some have already pointed out, there are letters used in Vietnamese
    that have diacritics positioned side-by-side, or at least "sort of"
    side-by-side. The precomposed forms of these letters decompose to the
    base letter, plus the first diacritic, plus the second diacritic. Of
    course, these decompositions are immutable.

    I would consider it strange if a different application of the Latin
    script were to indicate the side-by-side rendering explicitly, by means
    of a special "combining mark joiner" control character, while Vietnamese
    text would not. It would be inconsistent and surprising, and it might
    make developers of fonts and rendering engines think the marks are not
    to be rendered side-by-side *unless* the control character is present,
    which would cause decomposed Vietnamese to be rendered in the
    non-preferred way.

    I don't know how widespread Teuthonista is, but about 44 million people
    read Vietnamese.

    Gửi đến bạn những lời chúc tốt đẹp nhất,

    Doug Ewell  *  Thornton, Colorado, USA  *  RFC 4645  *  UTN #14  ˆ 

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