RESTRICT for splits: (FIELD VALUE [- RESTRICT [...]] SPLIT)

RESTRICT for splits: (FIELD VALUE [- RESTRICT [...]] SPLIT)

[Alexandre Oliva]

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This is a new implementation of RESTRICT clauses in fancy splits.
It's much simpler than the one I posted before, but it's reasonably
easy to prove that, if restricts are not used, it is equivalent to the
currently installed code.

However, because the multi-match feature is not included in this
patch, it may fail to handle certain cross-posting cases.  For
example, if the split is `(any "foo"- "x-foo" "foo.list")' and the
header line that first matches `foo' is: `To: foo, x-foo', this split
won't be used, because `x-foo' will be matched and restrict will
match, but no other occurrences of `foo' will be looked for.

The patch for the lisp code is the first attachment.  The second
attachment is a re-post of the patch for the .texi documentation.

-- 
Alexandre Oliva http://www.dcc.unicamp.br/~oliva IC-Unicamp, Bra[sz]il
{oliva,Alexandre.Oliva}@dcc.unicamp.br  aoliva@{acm.org,computer.org}
oliva@{gnu.org,kaffe.org,{egcs,sourceware}.cygnus.com,samba.org}
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Re: RESTRICT for splits: (FIELD VALUE [- RESTRICT [...]] SPLIT)

[Alexandre Oliva]

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On Jul  4, 1999, Alexandre Oliva <oliva@dcc.unicamp.br> wrote:

> However, because the multi-match feature is not included in this
> patch, it may fail to handle certain cross-posting cases.

And now, the multi-match feature.  The patch was created ignoring
blanks, so that it is more readable and its simplicity is clearer.

-- 
Alexandre Oliva http://www.dcc.unicamp.br/~oliva IC-Unicamp, Bra[sz]il
{oliva,Alexandre.Oliva}@dcc.unicamp.br  aoliva@{acm.org,computer.org}
oliva@{gnu.org,kaffe.org,{egcs,sourceware}.cygnus.com,samba.org}
*** E-mail about software projects will be forwarded to mailing lists

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