🚀 go-pugleaf

In article <ISHIKAWA.93Jan21204416@ds5200.personal-media.co.jp> ishikawa@personal-media.co.jp writes:
>   The problem is one of an existing character sets having multiple
>   possible reverse translations of a single code point.
>
>   A similar condition would be a Japanese/Chinese character set standard
>   which had seperate code points for characters unified by Unicode; if
>   such existed, then there would be no round-trip for characters translated
>   from that character set to the Unicode character set -- the correct code
>   point within the Japanese/Chinese combined set could not be identified
>   by the Unicode character itself.  No such example exists.
>
>I am an ignorant programmer. So bear with me. There is no such
>example, is there?  [From what I heard, strictly hearsay, mind you,
>there seem to be a few characters that would look slightly differently
>on printed paper and yet were put into the same code point. This
>slight difference might be big enough for some to scream and small
>enough for others to ignore.  If someone knowledgeable could shed some
>light on this mattter, I would be grateful.]

This is only true if the "round-tripping" were done from a character
recognition standpoint, where the input character could not be recognized
becuase of it being drawn differently.  While I can think of several
examples here, they are pretty much non-applicable because the seperation
of the rendering engine technology from the storage and process coding
of the data.

A particular example would be a font with both Chinese and Japanese
characters which did not chare code points, ie:

	--------		--------

	  ----  		  ----  

	--------		--------

	0x9915			0x9272
	(Japanese)		(Chinese)


I don't believe such a font exists.  It's possible to create one, but
unless it ends up widely accepted, I expect that this would not impact
future revisions of Unicode.

>Wonder if there was such combined
>Latin/Cyrillic/Greek standard at the time of Unicode design.

ISO 8859-5 and IS 8859-7 seem to me to qualify.


					Terry Lambert
					terry@icarus.weber.edu
					terry_lambert@novell.com
---
Any opinions in this posting are my own and not those of my present
or previous employers.
-- 
-------------------------------------------------------------------------------
                                        "I have an 8 user poetic license" - me
 Get the 386bsd FAQ from agate.berkeley.edu:/pub/386BSD/386bsd-0.1/unofficial
-------------------------------------------------------------------------------