Feedback on PR-104

From: N. Ganesan (
Date: Sun Aug 12 2007 - 04:20:51 CDT

  • Next message: Sinnathurai Srivas: "Re: Feedback on PR-104"

    When is the last date for submitting feedback on PR-104?
    Tamil example, like Farsi (Figure 2) is given in:


    >Gmail Have a Bug that strips Zero width Joiners from the
    >malayalam Mails (Thanks to Cibu!!) . we reported it multiple times but
    >not solved it yet. (Their buggy implementation is still waiting for
    >atomic chillu) . So the Quoted text is Just like removed the Letter N
    >from "Raj Neettiyath" And Responding to "Raj eettiyath"

    But the current Unicode specifies use of ZWJ for chillus,
    does MS Hotmail, Yahoo mail work OK with Chillu sequences with ZWJ?
    Do Googlegroups display Chillu sequences properly? It will be
    odd (and confusing) if Google mail (gmail) strips ZWJ, while
    displaying the Chillu sequences correctly in their Blogs, Googlegroups.

    If Hotmail, Yahoomail, Googlegroups & Blogs display Chils correctly
    with zwj, it should be pointed out to Google to fix their Gmail.
    Even if and when atomic Chils come into Unicode, compatibility with 5.0
    or earlier necessitates the chillu sequences indefinitely in the future.

    ZWJ with semantic content is not "evil" for Malayalam or Devanagari
    scripts at all. ZWJ just should not get lost in webpages or in e-mails.
    There was a proposal to encode <ra, virama, zwj> atomically, it didn't
    happen in Devanagari script. Perhaps, a similar decision would be good for
    Malayalam for atomic chillus, atomic reph, atomic prebase, etc.,

    There is a Rule R5a in the TUS.
    "R5a For compatibility with The Unicode Standard, Version 2.0, if
    the dead consonant RA_d precedes zero width joiner, then the
    haif-consonant form RA_h, depicted as eyelash-RA, is used instead
    of RA_sup.
              RA_d + ZWJ -> RA_h"

    In parallel terms, Another Rule for use of ZWJ in Malayalam script
    needs to be written. It can be something like,

    "RXX For compatibility with The Unicode Standard, Version 5.0 or earlier,
    if the dead consonant C_d precedes zero width joiner, then the
    haif-consonant form C_h, depicted as Chillu for C, is used instead
    of the full display of C with an overt virama or C in conjuncted form.

              C_d + ZWJ -> C_h"

    In an FAQ entry, a UTN, ... on describing Chillu sequences, and in the
    next print version of TUS.

    N. Ganesan

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