RE: I-D ACTION:draft-klasen-ldap-facs-tel-number-matching-00.txt

[Norbert Klasen <norbert+lists.ietf-ldapbis@burgundy.dyndns.org>]

Hallavard,

--On Donnerstag, 8. Mai 2003 18:07 +0200 Hallvard B Furuseth 
<h.b.furuseth@usit.uio.no> wrote:

> I wrote:
> > Steven Legg writes:
> > > The assertion syntax for facsimileNumberMatch is TelephoneNumber,
> > > i.e. SYNTAX 1.3.6.1.4.1.1466.115.121.1.50 .
> > > The assertion syntax for facsimileNumberSubstringsMatch is
> > > SubstringAssertion,
> > > i.e. SYNTAX 1.3.6.1.4.1.1466.115.121.1.58 .
> >
> > The '$' separators in fax-numbers are just treated as plain characters
> > when matching?

The point is that these matching rules only act on the telephone number 
part of a Facsimile Telephone Number. So only characters before the first 
'$' are taken into account when matching. That is why the ASSERTION syntax 
is TelephoneNumber.

> Hold on.  According to the Syntaxes draft, TelephoneNumber is a
> PrintableString, and PrintableString doesn't allow '$'.  Me not
> understand...

Take as example the following entry:
dn: o=avinci
objectclass: organization
o: avinci
facsimileTelephoneNumber: +49 2102 124 555 $fineResolution$a3Width

Now, searching for "facsimileTelephoneNumber=+49-2102-124-555" would match 
this entry, as
- only the telephone-number part, ie. "+49 2102 124 555 " of the attribute 
value is taken into account
- and the assertion value "+49-2102-124-555" matches the attribute value
 "+49 2102 124 555 " by the telephone number matching rule, ie. ignoring
 the case of letters, and ignoring    space and `-' characters.

I think adding this example and a copy of the ABNF from the definition of 
the Facsimile Telephone Number syntax to the draft should make things a lot 
clearer.

Norbert