Empty IA5String

[Hallvard B Furuseth <h.b.furuseth@usit.uio.no>]

[Syntaxes] section 3.3.15 says an IA5 String may be empty.

Why is that, when Directory String and Printable String may not?
If anyone knows, maybe a note should be added to explain.


[Strprep] section 2 says:

  This process is intended to act upon non-empty character strings.  If
  the string to prepare is empty, this process is not applied and the
  assertion is evaluated to Undefined.

Since an IA5 String can be empty, why shouldn't two empty IA5 Strings
match each other?

-- 
Hallvard