search: add YYYYMMDD search range via "d:" prefix

[public-inbox.git] / lib / PublicInbox / Search.pm

diff --git a/lib/PublicInbox/Search.pm b/lib/PublicInbox/Search.pm
index 61f033834949e4fede837ffc7188a34905224ca7..7561ef447ec8b6f07add73152e086495075bbcbc 100644 (file)
--- a/lib/PublicInbox/Search.pm
+++ b/lib/PublicInbox/Search.pm
@@ -12,6 +12,7 @@ use constant TS => 0; # timestamp
 use constant NUM => 1; # NNTP article number
 use constant BYTES => 2; # :bytes as defined in RFC 3977
 use constant LINES => 3; # :lines as defined in RFC 3977
+use constant YYYYMMDD => 4; # for searching in the WWW UI
 
 use Search::Xapian qw/:standard/;
 use PublicInbox::SearchMsg;
@@ -179,6 +180,8 @@ sub qp {
        $qp->set_database($self->{xdb});
        $qp->set_stemmer($self->stemmer);
        $qp->set_stemming_strategy(STEM_SOME);
+       $qp->add_valuerangeprocessor(
+               Search::Xapian::StringValueRangeProcessor->new(YYYYMMDD, 'd:'));
 
        while (my ($name, $prefix) = each %bool_pfx_external) {
                $qp->add_boolean_prefix($name, $prefix);