Re: UCD stability

From: Markus Scherer (
Date: Fri Mar 11 2005 - 16:23:38 CST

  • Next message: Erik van der Poel: "Re: UCD stability"

    So what you need is an IDN-specific inclusion list that you could
    initially base on Unicode properties, minus confusables or whatever
    criteria you want to use, and then this list is kept stable in an
    IDN-specific standard. No need to prevent Unicode from fixing its


    On Fri, 11 Mar 2005 11:23:59 -0800, Erik van der Poel
    <> wrote:
    > There is some evidence that the IDN Working Group had a concern that the
    > General Category Value in the UCD was not very stable, and that it might
    > not be a good idea to base an Internet standard on something like that.
    > ...
    > As it turns out, Unicode includes U+16C1, a Runic Letter that looks like
    > the vertical bar (|). This would argue that IDNs should not just be
    > limited to Unicode's Letter, Number and Mark categories. They should
    > also disallow certain Unicode blocks, such as the Runic block, *for
    > now*. ...

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