Re: Invalid code points

From: Hans Aberg (haberg@math.su.se)
Date: Sun May 31 2009 - 13:12:35 CDT

  • Next message: Hans Aberg: "Re: Invalid code points"

    Thanks you. That seems better.

       Hans

    On 31 May 2009, at 19:13, Mark Davis wrote:

    > That section is incorrect. The relevant passages are
    >
    > D76 Unicode scalar value: Any Unicode code point except high-
    > surrogate and low-surro-
    > gate code points.
    > As a result of this definition, the set of Unicode scalar values
    > consists of the
    > ranges 0 to D7FF16 and E00016 to 10FFFF16, inclusive.
    >
    > and under D79, p100:
    >
    > To ensure that the mapping for a Unicode encoding form is one-to-
    > one, all
    > Unicode scalar values, including those corresponding to noncharacter
    > code
    > points and unassigned code points, must be mapped to unique code unit
    > sequences. Note that this requirement does not extend to high-
    > surrogate and
    > low-surrogate code points, which are excluded by definition from the
    > set of
    > Unicode scalar values.
    >
    > Mark



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