pagespec_match_list: change limit to filter

IkiWiki.pm

@@ -1986,8 +1986,8 @@ sub pagespec_match_list ($$;@) {
 		if $@ || ! defined $sub;
 
 	my @candidates;
-	if (exists $params{limit}) {
-		@candidates=grep { $params{limit}->($_) } keys %pagesources;
+	if (exists $params{filter}) {
+		@candidates=grep { ! $params{filter}->($_) } keys %pagesources;
 	}
 	else {
 		@candidates=keys %pagesources;
@@ -2023,7 +2023,7 @@ sub pagespec_match_list ($$;@) {
 	
 	# clear params, remainder is passed to pagespec
 	my $num=$params{num};
-	delete @params{qw{num deptype reverse sort limit}};
+	delete @params{qw{num deptype reverse sort filter}};
 	
 	my @matches;
 	my $firstfail;

IkiWiki/Plugin/inline.pm

@@ -218,7 +218,7 @@ sub preprocess_inline (@) {
 
 		@list = pagespec_match_list($params{page}, $params{pages},
 			deptype => deptype($quick ? "presence" : "content"),
-			limit => sub { $_[0] ne $params{page} },
+			filter => sub { $_[0] eq $params{page} },
 			sort => exists $params{sort} ? $params{sort} : "age",
 			reverse => yesno($params{reverse}),
 			num => $num,

IkiWiki/Plugin/orphans.pm

@@ -31,24 +31,24 @@ sub preprocess (@) {
 	my @orphans=pagespec_match_list($params{page}, $params{pages},
 		# update when orphans are added/removed
 		deptype => deptype("presence"),
-		limit => sub {
+		filter => sub {
 			my $page=shift;
 
 			# Filter out pages that other pages link to.
-			return 0 if IkiWiki::backlink_pages($page);
+			return 1 if IkiWiki::backlink_pages($page);
 
 			# Toplevel index is assumed to never be orphaned.
-			return 0 if $page eq 'index';
+			return 1 if $page eq 'index';
 
 			# If the page has a link to some other page, it's
 			# indirectly linked via that page's backlinks.
-			return 0 if grep {
+			return 1 if grep {
 				length $_ &&
 				($_ !~ /\/\Q$config{discussionpage}\E$/i || ! $config{discussion}) &&
 				bestlink($page, $_) !~ /^(\Q$page\E|)$/ 
 			} @{$links{$page}};
 			
-			return 1;
+			return 0;
 		},
 	);
 	

IkiWiki/Plugin/postsparkline.pm

@@ -56,7 +56,7 @@ sub preprocess (@) {
 	my @list=sort { $params{timehash}->{$b} <=> $params{timehash}->{$a} } 
 		pagespec_match_list($params{page}, $params{pages},
 			deptype => $deptype,
-			limit => sub { $_[0] ne $params{page} },
+			filter => sub { $_[0] eq $params{page} },
 		);
 
 	my @data=eval qq{IkiWiki::Plugin::postsparkline::formula::$formula(\\\%params, \@list)};

doc/plugins/write.mdwn

@@ -643,8 +643,8 @@ Additional named parameters can be specified:
 
 * `deptype` optionally specifies the type of dependency to add. Use the
   `deptype` function to generate a dependency type.
-* `limit` is a reference to a function, that is called and passed a page,
-  and must return true for the page to be included.
+* `filter` is a reference to a function, that is called and passed a page,
+  and returns true if the page should be filtered out of the list.
 * `sort` specifies a sort order for the list. See
   [[ikiwiki/PageSpec/sorting]] for the avilable sort methods.
 * `reverse` if true, sorts in reverse.