Re: XTerm Arabic Patch

[Roozbeh Pournader <roozbeh@xxxxxxxxxxxx>]

On Fri, 6 Oct 2000, Robert Brady wrote:

> I gather that ZWNJ is compulsory for some languages (fa, ur?), but
> is ZWJ needed? And if so, where - in particular, can it come at the
> beginning of lines?

ZWJ's main usage is for writing abbreviations. Because the isolated form
of Heh is somehow similiar to the arabic form of digit 5, the initial form
is used in abbreviations. So a ZWJ should be used after the Heh to make it
right. One common example in Persian is:

	0647 200D 002E      0020  0634  002E
	HEH  ZWJ  FULL-STOP SPACE SHEEN FULL-STOP

which means "in solar years after Hijrah".

I can't find any common usage for ZWJ at the beginning of lines, the only
reason for its appearance may be exhibiting the joining variants
themselves, e.g. in an email about adding Arabic support to xterm ;)


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