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Re: Java/Unicode brain damage

• From: David Brownell <david-b@p...>
• To: msabin@i..., xml-dev@l...
• Date: Thu, 26 Jul 2001 20:24:22 -0700

Miles,

> A Java 'char' is a 16 bit data type, so it simply isn't possible for
> it to directly represent a Unicode character. 

Could you elaborate?  There's a section in my Unicode book
(in another city :) that talks about surrogates.  There's a sense
in which "if it's listed there, it's a kind of character".

The word "character" is heavily overloaded, but I think it's
clear that in at least one sense a Java "char" _is_ what folk
call a "character".  That's just how the word is used, even
if it's arguably sloppy usage for other contexts.

It would likely be instructive to have someone explain
the senses in which "char" is, and isn't, a character.

Likewise the senses in which combining marks relate
to the concept of a character ... "character" is actually
a rather complex notion, and ISO-10646 code points
are (as I understand) not necessarily going to be able
to represent a "character" either (32 bits v. 16).

- Dave

• Follow-Ups:
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    • From: Tim Bray <tbray@t...>
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    • From: John Cowan <cowan@m...>
  • RE: Java/Unicode brain damage
    • From: Miles Sabin <msabin@i...>

• References:
  • RE: Java/Unicode brain damage
    • From: Miles Sabin <msabin@i...>

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