Why do the Hebrew Alphabetic Presentation Forms Exist

[James Kass]

On 2020-06-04 6:26 AM, James Kass wrote:
>
> On 2020-06-04 3:26 AM, abrahamgross--- via Unicode wrote:
>> Why do the final forms of the hebrew letters (םןץףך) exist as 
>> separate codepoints from their regular counterparts (מנצפכ), when 
>> arabic - which has up to 4 forms for each letter - only got a single 
>> codepoint per letter?
>>
>>
> Because they were in a legacy character set.  Windows 1255:
> https://en.wikipedia.org/wiki/Windows-1255
P.S. - The Arabic positional variants from legacy character sets were 
encoded as presentation forms.