Re: Compression through normalization

From: Mark Davis (mark.davis@jtcsv.com)
Date: Tue Nov 25 2003 - 14:34:35 EST

  • Next message: Rick McGowan: "Re: Normalisation stability, was: Compression through normalization"

    I would say that a compressor can normalize, if (a) when decompressing it
    produces NFC, and (b) it advertises that it normalizes.

    Mark
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    ----- Original Message -----
    From: "Doug Ewell" <dewell@adelphia.net>
    To: "Unicode Mailing List" <unicode@unicode.org>; "UnicoRe Mailing List"
    <unicore@unicode.org>
    Sent: Tue, 2003 Nov 25 11:08
    Subject: Re: Compression through normalization

    > Here's a summary of the responses so far:
    >
    > * Philippe Verdy and and Jill Ramonsky say YES, a compressor can
    > normalize, because it knows it is operating on Unicode character data
    > and can take advantage of Unicode properties.
    >
    > * Peter Kirk and Mark Shoulson say NO, it can't, because all the
    > compressor really knows about is the byte stream, so it must be
    > preserved byte-for-byte.
    >
    > * I'm still not sure, but I'm leaning toward NO.
    >
    > -Doug Ewell
    > Fullerton, California
    > http://users.adelphia.net/~dewell/
    >
    >
    >
    >
    >

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