RE: Brahmic list ? (was: Oriya: mba / mwa ?)

From: Philippe Verdy (verdy_p@wanadoo.fr)
Date: Sun Nov 30 2003 - 07:24:35 EST

  • Next message: Doug Ewell: "Re: Compression through normalization"

    Doug Ewell writes:
    > Philippe Verdy <verdy underscore p at wanadoo dot fr> wrote:
    >
    > > I've tried to experiment a collation algorithm to implement UCA by the
    > > same system as used in UCD decompositions, but with added (and
    > > sometimes modified) decompositions. This system creates new "code
    > > points" needed to represent only <font> compatibility differences,
    > > ligatures, or alternate forms, as a decomposition of the existing
    > > compatibility character, into more basic characters exposed with
    > > primary differences in UCA, plus these new characters given "variable"
    > > collation weights, which may be ignorable in applications which ignore
    > > extra levels. This encoding uses a 31 bit code space, which is still
    > > highly compressible, but still representable with the UTF-8 TES (but
    > > they are not containing Unicode code points) or similar ad-hoc
    > > representation.
    >
    > Please don't use UTF-8 to encode anything other than Unicode code
    > points.

    As long as I use it internally for intermediate processing, I can do what
    I want. For now it is just a convenient way to represent variable size
    integers up to 31 bits (in fact I use it to represent 32 bit signed
    integers, but the two highest bits are equal).

    Of course if I still use it to represent something else thzn codepoints
    in some published data or text, I will rename it and won't keep the
    same charset label. But it's highly probable that this will not be the
    most efficient representation (due to its byte-oriented splitting), and
    a more compact or easier to process serialization could require an
    alternate encoding scheme (or transfer syntax).

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