RE: Quoted characters in the Substring Assertion syntax

["Steven Legg" <steven.legg@adacel.com.au>]

Hallvard,

Hallvard B Furuseth wrote:
> draft-ietf-ldapbis-syntaxes-02.txt says:
> 
> > 3.32 Substring Assertion
> >                                                 If a backslash or 
> >   asterix character is present in a production of <value>, it is 
> >   quoted as described in section 2.1.
> 
> May other characters be quoted?

I've replaced descriptive text like this with explicit ABNF for the
-04 draft that makes it clear. I've taken a strict interpretation
that only "\" and "*" are escaped. Implementations are always free
to be liberal in what they accept.

> I.e. can one put a quoted 
> 'substrings'
> value from the String Filter draft in a Substring Assertion?

The <substring> rule in the string representation of filters and
the Substring Assertion syntax are unrelated. However, a value of
the Substring Assertion syntax may appear as the <assertionvalue>
for the <extensible> rule in a string filter.

Regards,
Steven

> "(" and ")" must be quoted in string filters, and other 
> octets _may_ be
> quoted.
> 
> If others can be quoted: this section talks about quoted _characters_.
> It may be better to talk about quoted _octets_, like the string filter
> draft was changed to do.  An UTF-8 character can consist of several
> octets, each of which can be quoted in filters.
> 
> -- 
> Hallvard
>