What about this?
When using sc, and scope uses "+" or "-" then the current set of scope(s)
will be modified. If "+" or "-" is not used then a new set of scopes is
defined. If a "-" is used then any other scope without "+" or "-" will
assume "+" (or we could say: if any 1 scope used "+" or "-" all other scopes
must also use "+" or "-", if not, syntax error). The first set of scoped
defined can not use "+" or "-" since the set is not yet defined (or we could
just assume the default is an empty set).
Examples:
"sc=s1 m1 sc=s2 m2 m3 m4"
m1 is in s1 scope
m2, m3, m4 is in s2 scope
"sc=s1 m1 sc=-s1,s2 m2 m3 m4" ##s2 is assumed to be +s2
m1 is in s1 scope
m2, m3, m4 is in s2 scope
"sc=s1 m1 sc=+s2 m2 m3 m4"
m1 is in s1 scope
m2, m3, m4 is in s1 and s2 scopes
"sc=s1,s2 m1 sc=-s2 m2 m3 m4"
m1 is in s1 and s2 scopes
m2, m3, m4 is in s1 scope
Guy
-----Original Message-----
From: owner-spf-discuss(_at_)v2(_dot_)listbox(_dot_)com
[mailto:owner-spf-discuss(_at_)v2(_dot_)listbox(_dot_)com] On Behalf Of
william(at)elan.net
Sent: Saturday, October 30, 2004 12:33 PM
To: spf-discuss(_at_)v2(_dot_)listbox(_dot_)com
Subject: Re: [spf-discuss] Re: purely dual-format approach
On Sat, 30 Oct 2004, Frank Ellermann wrote:
The "global positional" is graph theory, if you have say four
mechanisms m1 m2 m3 m4, and you want m1 m2 m3 in scope s1, and
m2 m3 m4 in s2, then you can't do it with "global positional".
Something like "sc=s1 m1 sc=s2 m2 m3 m4" is what you want for
s2, but it adds m4 to s1, which is not what you wanted.
How about this, if somebody wants to start different scope that does
not include records from first one then HAVE TO close existing scope
BUT any scopes that are open are automaticly closed by -all
So "v=spf1 sc=s1 m1 sc=-s1,s2 m2 m3 -all" would mean that m1 applies only
to s1 scope and m2 and m3 to s2 scope
And "v=spf1 sc=s1 m1 sc=s2 m2 m3 -all" would mean that m1, m2, m3 all are
within s1 scope while only m2 and m3 are within s2 scope.
--
William Leibzon
Elan Networks
william(_at_)elan(_dot_)net
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