Re: ZWNJ in IDN (Burmese Issues)

From: Ngwe Tun (ngwestar@gmail.com)
Date: Mon Nov 21 2005 - 09:45:40 CST

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    Hi Richard,
     Thanks for pointing to appropriate place.
    Yes, You are right that's not security but it is encoding problem.
    If you say so misrendering issues, every rendering engine can't detect
    ambugity, am I right?
     I'm sure that Service Pack 2 or updated uniscribe engine supports burmese
    language. you can try it out under http://www.openmm.org/opentype
     Anybody, please figure out pit fall rendering problem of recent Unicode
    Standard.
     Regards
     Ngwe Tun

     On 11/21/05, Richard Wordingham <richard.wordingham@ntlworld.com> wrote:
    >
    > Ngwe Tun wrote:
    >
    > > You said so there is not an issue. I don't agree that.
    >
    > I don't believe it's a security issue. The misrendering should be
    > consistent and preserve differences.
    >
    > > Windows XP Service Pack 2 or VOLT User Community's updated uniscribe
    > > engine
    > (usp10.dll) supports both of khmer and burmese. So, We tried it with
    > burmese
    > language. But It's not perfect yet for burmese.
    >
    > Which version is this? Service Pack 2 didn't seem to upgrade to usp10.dll.
    > I'm using an intermediate version that supports Khmer but not Burmese.
    >
    > > 1) I agree that virama ZWNJ consonant was distinct virama consonant. But
    > > We
    > have some issues cases as follows;
    > ....
    >
    > > 2) Another issues is kinzi problem
    > > a) In Unicode 4.0, Chapter 10, kinzi assign as nga virama (1004 1039)
    > > b) and also medial ya, ra, wa, ha assign as virama [ya ra wa ha] (1039
    > > [101A
    > 101B 101D 101F])
    >
    > > So We got problem in combination of nga and medial. While combination of
    > > nga
    > (1004) and medial wa (1039 101D), it may appear/render wa(101D) +
    > kinzi(1004
    > 1039).
    >
    > > I guess so it should be add ZWJ after virama, It might be more safe for
    > collision or selecting ambiguity. I'm right.
    >
    > > I would like to get responses in these issues.
    >
    > The Indic list is probably more appropriate. (To join, send message to
    > ecartis@unicode.org with subject 'subscribe indic'.) There's an attempt to
    > get a consistent resolution to the rendering problems.
    >
    > Richard.
    >
    >
    >

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