CJK-Ext B, Fonts and input methods - Question from SAP

From: Magda Danish (Unicode) (v-magdad@microsoft.com)
Date: Thu Oct 24 2002 - 13:26:01 EDT

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    Magda Danish
    Administrative Director
    The Unicode Consortium

    > -----Original Message-----
    > Date/Time: Thu Oct 24 05:06:48 EDT 2002
    > Contact: christian.hansen@sap.com
    > Report Type: Other Question, Problem, or Feedback
    > Dear Sir/Madam,
    > in the newer Unicode versions you started to occupy the
    > surrogate area with new characters (e.g. CJK Unified
    > Ideographs Extension B
    > Range: 20000–2A6DF
    > The Unicode Standard 3.1).
    > There are several mappings like the Hongkong supplementary
    > character set using those surrogate characters
    > (http://www.info.gov.hk/digital21/eng/hkscs/download/big5-iso.
    txt), but unfortunately there are no fonts or input methods that support those surrogate mappings. (Actually even the "Government of the Hong Kong Special Administrative Region Information Technology Services Department" has no plans to develop a surrogate mapping version for fonts and input methods. Instead they use a mapping to the PUA U+E000 to U+F8FF).

    Do you know of any font and input method that does support the surrogate mapping?

    For our applications it is very important not to have any duplicate definitions of the same character in the database, whereas we would like to implement the state of the art mapping (surrogate are) rather than having the PUA occupied. If we start with the PUA mapping we cannot change it later.

    But without the input method and the correct font it is difficult to pull it off.

    Best regards,

    Dr. Christian Hansen
    Server Technology
    SAp AG Walldorf

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