Mark Davis mark at macchiato.com
Thu Mar 19 21:44:36 CET 2009

I propose that we make U+0640 ( ‎ـ‎ ) ARABIC TATWEEL (aka kashida) be
DISALLOWED, adding it to
Currently it is PVALID, but it does not carry semantics by any
Arabic-Script orthography, and its only value is for spoofing.

For example: جوجل can be written with extra kashidas as جـوجل or as
جوجـل by inserting a kashida after the first or third character. This
is very hard for users to detect. We added it to Unicode for use in
manual justification, but has no place in IDNA.



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