+
+It appears that [[ikiwiki/directive/map]] also doesn't wikilink to the pages it links. Perhaps in each of these
+cases there should be another parameter to the directive that allows linking to switched on. Just switching
+it on universally at this point might break a number of people's pagespecs. -- [[Will]]
+
+> There's a simple reason why these directives don't generate a record of a
+> wikilink between them and the pages they include: Semantically, inlining
+> a page is not the same as writing a link to it. Nor is generating a map that
+> lists a page the same as linking to it. I don't think this is a bug.
+> --[[Joey]]
+
+>> Fair enough. I guess we can mark this as [[done]] then.
+>>
+>> Just a bit of background on where I was going here... I was looking for
+>> a simpler way of attacking [[todo/tracking_bugs_with_dependencies]].
+>> In particular, rather than introducing changes to the pagespec definition,
+>> I wondered if you could use wiki pages as the defined pagespec and
+>> introduce a 'match_mutual' function which matches whenever two pages
+>> link to the same third page, then you don't need to alter the pagespec
+>> handling code.
+>>
+>> But that requires being able use use a pagespec to decide what pages
+>> are linked to. e.g. I want to make an 'openbugs' page that links to all
+>> open bugs. Then I could make a 'readybugs' page that links to
+>> `backlink(openbugs) and !mutualLink(openbugs)`. That is, all bugs
+>> that are open and do not themselves link to an open bug.
+>>
+>> The problem with all this is that it introduces an ordering dependency,
+>> as I noted below. I think the original proposal is better, because it
+>> handles that ordering dependency in the definition of the pagespecs.
+>> --[[Will]]
+
+Here is a patch to make map link to its linked pages (when passed `link="yes"`). It is a bit problematic in that it uses a pagespec
+to decide what to link to (which is why I wanted it). However, at the time the pagespec is used the links
+for each page haven't finished being calculated (we're using the pagespec to figure out those links,
+remember). This means that some pagespec match functions may not work correctly. Sigh.
+It would be nice to find a topological ordering of the pages and scan them in that order
+so that everything we need is found before we need it, but this patch doesn't do that (it would be
+complex).
+
+If you just use simple pagespecs you'll be fine. Unfortunately I really wanted this for more complex
+pagespecs. -- [[Will]]
+
+ diff --git a/IkiWiki/Plugin/map.pm b/IkiWiki/Plugin/map.pm
+ index 3284931..57c0a7a 100644
+ --- a/IkiWiki/Plugin/map.pm
+ +++ b/IkiWiki/Plugin/map.pm
+ @@ -13,7 +13,7 @@ use IkiWiki 3.00;
+
+ sub import {
+ hook(type => "getsetup", id => "map", call => \&getsetup);
+ - hook(type => "preprocess", id => "map", call => \&preprocess);
+ + hook(type => "preprocess", id => "map", call => \&preprocess, scan => 1);
+ }
+
+ sub getsetup () {
+ @@ -27,7 +27,9 @@ sub getsetup () {
+ sub preprocess (@) {
+ my %params=@_;
+ $params{pages}="*" unless defined $params{pages};
+ -
+ +
+ + return if (!defined wantarray && !IkiWiki::yesno($params{link}));
+ +
+ my $common_prefix;
+
+ # Get all the items to map.
+ @@ -42,6 +44,9 @@ sub preprocess (@) {
+ else {
+ $mapitems{$page}='';
+ }
+ + if (!defined wantarray && IkiWiki::yesno($params{link})) {
+ + push @{$links{$params{page}}}, $page;
+ + }
+ # Check for a common prefix.
+ if (! defined $common_prefix) {
+ $common_prefix=$page;
+ @@ -62,6 +67,8 @@ sub preprocess (@) {
+ }
+ }
+
+ + return if ! defined wantarray;
+ +
+ # Common prefix should not be a page in the map.
+ while (defined $common_prefix && length $common_prefix &&
+ exists $mapitems{$common_prefix}) {