Thanks for your answers.
Best regards
On Thu, Jan 08, 2004 at 10:16:01AM +0100, Olivier Dubuisson wrote:
> Geoffrey Elgey wrote:
> >G'day,
> >
> >Olivier Dubuisson wrote:
> >
> >>The relevant rule is <21> on the next page: "MTSIdentifier" is
> >>imported twice, so the only way to reference it is by way of an
> >>"ExternalTypeReference" that includes the modulename to avoid ambiguity.
> >>Note that "MTSIdentifier" is not referenced in the body of module
> >>"MhsAcctAsn1Module", so there is no problem (it is imported so that it
> >>can be re-exported to any other ASN.1 module that imports definitions
> >>from module "MhsAcctAsn1Module").
> >
> >So if a third module has "IMPORTS MTSIdentifier FROM MhsAcctAsn1Module",
> >which MTSIdentifier gets imported?
>
> Good catch! My mistake.
> Rule <17> on page 115 of my book (in both English and French versions)
> states:
> Each "Symbol" appearing in "SymbolsFromModule" must be defined in the
> body or in the IMPORTS clause of the referenced module (in the second
> case, "Symbol" can appear only once in the IMPORTS clause of the
> referenced module and should not be defined in the body of that module).
>
> BTW Sebastien Castano who is in charge of the ITU-T module database has
> kindly checked ITU-T Rec. X.462.
> The IMPORTS statement of module "MhsAcctAsn1Module" is as follows:
>
> -- MTS abstract service parameters
> [...]
> MTSIdentifier,
> [...]
> FROM MTSAbstractService {joint-iso-itu-t mhs(6) mts(3) modules(0)
> mts-abstract-service(1) version-1999(1) }
>
> -- MTA abstract service parameters
> [...]
> MTSIdentifier,
> [...]
> FROM MTAAbstractService {joint-iso-itu-t mhs(6) mts(3) modules(0)
> mta-abstract-service(2) version-1999(1) }
>
> "MTSIdentifier" is only defined in module "MTSAbstractService". Module
> "MTAAbstractService" imports it from module "MTSAbstractService".
>
> We have removed the second importation of "MTSIdentifier" (the ITU-T
> module database will be soon available -- if not already!). This small
> change to the approved standard will be reflected in the implementor's
> guide for the X.400 series (a document that can be downloaded for free
> from this ITU website).
> --
> Olivier DUBUISSON
> france telecom R&D
>
> DTL/TAL - 22307 Lannion Cedex - France
> t: +33 2 96 05 38 50 - f: +33 2 96 05 39 45 - http://asn1.elibel.tm.fr/
>
--
Sandrine Soudant, [EMAIL PROTECTED]
Cogenit, http://www.cogenit.fr
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