2

As far as I know Unicode itself is not an encoding system. It is just a standard that assigns code point to characters. Quoting from Wikipedia..

Unicode can be implemented by different character encodings.

So what are these options in Internet Explorer and Firefox?

enter image description here

enter image description here

Does Unicode implicitly mean UTF16? If so, is it BE or LE?

and while we are at it, is UTF-32 not supported by Firefox & Internet Explorer?

2

Unicode means "Windows's" encoding system (no, this is not invented by Microsoft, but widely used in its products), i.e. UCS-2 (Universal Character Set).

In the past it was not so bad decision (slow processors have less problems with fixed length of characters), but today is UTF-8 prevalent for very good reasons.

No, UTF-32 is not supported - neither in Internet browsers, nor in another applications because its obvious disadvantage - 4 bytes for every character.

(Of course, they may be some exceptions.)

  • Chrome seems to support it. – Koray Tugay Apr 1 '17 at 17:37
  • @KorayTugay - Google wants to support everything regardless of its practical usefulness. Pure competition's reasons sometimes. – MarianD Apr 1 '17 at 17:44
  • I see, thanks for the great answer. Is UCS-16 same with UTF-16? – Koray Tugay Apr 1 '17 at 17:47
  • Oh, I made a mistake (and I corrected it in my answer) - not UCS-16 (as 16 bits) but UCS-2 (as 2 bytes). No, UCS-2 is a character set (every character as 2 bytes) while UTF-16 is an extension of UCS-2 and it is a variable-length coding scheme (2 to 4 bytes for a character). On the other hand, for majority of the 65,536 characters (the UCS-2 range) they have identical code points, so they are largely equivalent. – MarianD Apr 1 '17 at 19:53

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.