search: relocate all_terms from lei_search

This will be used for code_search, too.

1 files changed, 14 insertions, 0 deletions

diff --git a/lib/PublicInbox/Search.pm b/lib/PublicInbox/Search.pm
index e858729a..7aba2445 100644
--- a/lib/PublicInbox/Search.pm
+++ b/lib/PublicInbox/Search.pm
@@ -553,4 +553,18 @@ sub num2docid ($$) {
         ($num - 1) * $nshard + $num % $nshard + 1;
 }
 
+sub all_terms {
+        my ($self, $pfx) = @_;
+        my $cur = xdb($self)->allterms_begin($pfx);
+        my $end = $self->{xdb}->allterms_end($pfx);
+        my %ret;
+        for (; $cur != $end; $cur++) {
+                my $tn = $cur->get_termname;
+                index($tn, $pfx) == 0 and
+                        $ret{substr($tn, length($pfx))} = undef;
+        }
+        wantarray ? (sort keys %ret) : \%ret;
+}
+
+
 1;