-sub use_pagespec ($$;@) {
- my $page=shift;
- my $pagespec=shift;
- my %params=@_;
-
- my $sub=pagespec_translate($pagespec);
- error "syntax error in pagespec \"$pagespec\""
- if $@ || ! defined $sub;
-
- my @candidates;
- if (exists $params{limit}) {
- @candidates=grep { $params{limit}->($_) } keys %pagesources;
- }
- else {
- @candidates=keys %pagesources;
- }
-
- if (defined $params{sort}) {
- my $f;
- if ($params{sort} eq 'title') {
- $f=sub { pagetitle(basename($a)) cmp pagetitle(basename($b)) };
- }
- elsif ($params{sort} eq 'title_natural') {
- eval q{use Sort::Naturally};
- if ($@) {
- error(gettext("Sort::Naturally needed for title_natural sort"));
- }
- $f=sub { Sort::Naturally::ncmp(pagetitle(basename($a)), pagetitle(basename($b))) };
- }
- elsif ($params{sort} eq 'mtime') {
- $f=sub { $pagemtime{$b} <=> $pagemtime{$a} };
- }
- elsif ($params{sort} eq 'age') {
- $f=sub { $pagectime{$b} <=> $pagectime{$a} };
- }
- else {
- error sprintf(gettext("unknown sort type %s"), $params{sort});
- }
- @candidates = sort { &$f } @candidates;
- }
-
- @candidates=reverse(@candidates) if $params{reverse};
-
- my @matches;
- my $firstfail;
- my $count=0;
- foreach my $p (@candidates) {
- my $r=$sub->($p, location => $page);
- if ($r) {
- push @matches, [$p, $r];
- last if defined $params{num} && ++$count == $params{num};
- }
- elsif (! defined $firstfail) {
- $firstfail=$r;
- }
- }
-
- $depends{$page}{$pagespec} |= ($params{deptype} || $DEPEND_CONTENT);
-
- my @ret;
- if (@matches) {
- # Add all influences from successful matches.
- foreach my $m (@matches) {
- push @ret, $m->[0];
- my %i=$m->[1]->influences;
- foreach my $i (keys %i) {
- $depends_simple{$page}{lc $i} |= $i{$i};
- }
- }
- }
- elsif (defined $firstfail) {
- # Add influences from one failure. (Which one should not
- # matter; all should have the same influences.)
- my %i=$firstfail->influences;
- foreach my $i (keys %i) {
- $depends_simple{$page}{lc $i} |= $i{$i};
- }
-
- error(sprintf(gettext("cannot match pages: %s"), $firstfail))
- if $firstfail->isa("IkiWiki::ErrorReason");
- }
-
- return @ret;
-}
-