thread => 'G', # newsGroup (or similar entity - e.g. a web forum name)
);
+# do we still need these? probably not..
my %bool_pfx_external = (
path => 'XPATH',
mid => 'Q', # uniQue id (Message-ID)
m => 'Q', # 'mid' is exact, 'm' can do partial
);
+# not documenting m: and mid: for now, the using the URLs works w/o Xapian
+our @HELP = (
+ 's:' => <<EOF,
+match within Subject only e.g. s:"a quick brown fox"
+This is a probabilistic search with support for stemming
+and wildcards '*'
+EOF
+ 'd:' => <<EOF,
+date range as YYYYMMDD e.g. d:19931002..20101002
+Open-ended ranges such as d:19931002.. and d:..20101002
+are also supported.
+EOF
+);
+# TODO: (from mairix, some of these are maybe)
+# b (body), f (From:), c (Cc:), n (attachment), t (To:)
+# tc (To:+Cc:), bs (body + Subject), tcf (To: +Cc: +From:)
+#
+# Non-mairix:
+# df (filenames from diff)
+# nq (non-quoted body)
+# da (diff a/ removed lines)
+# db (diff b/ added lines)
+
my %all_pfx = (%bool_pfx_internal, %bool_pfx_external, %prob_prefix);
sub xpfx { $all_pfx{$_[0]} }
# we do not actually create AltId objects,
# just parse the spec to avoid the extra DB handles for now.
if (my $altid = $self->{altid}) {
+ my $user_pfx = $self->{-user_pfx} ||= [];
for (@$altid) {
# $_ = 'serial:gmane:/path/to/gmane.msgmap.sqlite3'
/\Aserial:(\w+):/ or next;
my $pfx = $1;
+ push @$user_pfx, "$pfx:", <<EOF;
+alternate serial number e.g. $pfx:12345
+EOF
# gmane => XGMANE
$qp->add_boolean_prefix($pfx, 'X'.uc($pfx));
}
$self->{enquire} ||= Search::Xapian::Enquire->new($self->{xdb});
}
+sub help {
+ my ($self) = @_;
+ $self->qp; # parse altids
+ my @ret = @HELP;
+ if (my $user_pfx = $self->{-user_pfx}) {
+ push @ret, @$user_pfx;
+ }
+ \@ret;
+}
+
1;