X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient: geda-user AT delorie DOT com
X-TCPREMOTEIP: 207.224.51.38
X-Authenticated-UID: jpd AT noqsi DOT com
Content-Type: multipart/signed; boundary="Apple-Mail=_D28F6EA7-6D52-419C-97D4-C270652B3A58"; protocol="application/pgp-signature"; micalg=pgp-sha512
Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\))
Subject: Re: [geda-user] Pin mapping (separate symbols from mappings)
X-Pgp-Agent: GPGMail 2.5.2
From: John Doty <jpd AT noqsi DOT com>
In-Reply-To: <201510191640.t9JGeWb0024375@envy.delorie.com>
Date: Mon, 19 Oct 2015 11:06:02 -0600
Message-Id: <4AC7F055-0A26-4DD8-B8F9-8D67F7E36B0A@noqsi.com>
References: <20151018204010 DOT 9cce6a231dcc296256e187bd AT gmail DOT com> <201510181843 DOT t9IIhmWo025346 AT envy DOT delorie DOT com> <20151018234424 DOT c0551dad9bef0859130239d9 AT gmail DOT com> <36B94694-F2AC-4A75-A8EB-40A1CE9A534C AT noqsi DOT com> <201510182225 DOT t9IMPkxK032763 AT envy DOT delorie DOT com> <20151019003814 DOT f62620bf0fec77e65104c105 AT gmail DOT com> <BED51F9A-F6FF-4A23-B18B-C2EC8BB9DAB6 AT noqsi DOT com> <201510190242 DOT t9J2gl7w009345 AT envy DOT delorie DOT com> <282EF9EF-E103-4101-BB56-A0A365AFFEBE AT noqsi DOT com> <201510190408 DOT t9J48ZbC015157 AT envy DOT delorie DOT com> <F9B802B2-A8F6-4A6F-9429-02161A60B6C5 AT noqsi DOT com> <201510190502 DOT t9J528LM019325 AT envy DOT delorie DOT com> <58E58C85-9493-47DD-AC5B-AD78C33A712A AT noqsi DOT com> <201510191640 DOT t9JGeWb0024375 AT envy DOT delorie DOT com>
To: geda-user AT delorie DOT com
X-Mailer: Apple Mail (2.1878.6)
Reply-To: geda-user AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: geda-user AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk


--Apple-Mail=_D28F6EA7-6D52-419C-97D4-C270652B3A58
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
	charset=windows-1252


On Oct 19, 2015, at 10:40 AM, DJ Delorie <dj AT delorie DOT com> wrote:

>=20
>>> Where did U2 come from?  My sample schematic would have U1-1 and =
U1-1.
>>=20
>> You have to have some way to distinguish them.
>=20
> If the tool *requires* that each symbol be unique, then either=85

It only requires they be unique if they refer to distinct entities. And =
that, fundamentally, is in the mind of the designer.

For particular purposes, the gnetlist back ends could do a better job of =
detecting confusion. There=92s some of that in gnet-spice-noqsi: no more =
=93invalid wanted_pin=94 errors, but a more useful: "pinseq=3D~A not =
found for refdes=3D~A
This may indicate an erroneously duplicated refdes.\n=94.

>=20
> 1. It must not let the user provide non-unique symbols, or
>=20
> 2. It must produce a hard error when it detects non-unique symbols, or
>=20
> 3. It must provide some user-independent way of making the symbols =
unique.
>=20
> gaf currently does none of these.
>=20

Rigid thinking, taking away the user=92s freedom to use the tool as =
their problem requires. (3) requires  clairvoyance.

John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com



--Apple-Mail=_D28F6EA7-6D52-419C-97D4-C270652B3A58
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename=signature.asc
Content-Type: application/pgp-signature;
	name=signature.asc
Content-Description: Message signed with OpenPGP using GPGMail

-----BEGIN PGP SIGNATURE-----
Comment: GPGTools - https://gpgtools.org
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=O8KV
-----END PGP SIGNATURE-----

--Apple-Mail=_D28F6EA7-6D52-419C-97D4-C270652B3A58--