- Adds a tag plugin that allows more easily tagging pages.

    The meta plugin can also still be used for that, but the tag plugin
    also lists a page's tags at the bottom of the page.
  - Allows preprocessor directives to have parameters with no specified
    value.
  - Fixes preprocessor directive parameter parsing so that
    foo=bar baz now means "foo=bar" and a "baz" with no value.
* Run pagetemplate hooks when inlining pages so that inlines pages also
  list their tags.
* Make all plugins with pagetemplate hooks check that variables exist
  on the template before setting them.

4 files changed, 32 insertions, 5 deletions

diff --git a/IkiWiki/Plugin/inline.pm b/IkiWiki/Plugin/inline.pm
index 08126c4e6..749e39fb6 100644
--- a/IkiWiki/Plugin/inline.pm
+++ b/IkiWiki/Plugin/inline.pm
@@ -80,7 +80,15 @@ sub preprocess_inline (@) { #{{{
 		$template->param(content => get_inline_content($params{page}, $page))
 			if $params{archive} eq "no";
 		$template->param(ctime => displaytime($pagectime{$page}));
+
+		if (exists $hooks{pagetemplate}) {
+			foreach my $id (keys %{$hooks{pagetemplate}}) {
+				$hooks{pagetemplate}{$id}{call}->($page, $template);
+			}
+		}
+
 		$ret.=$template->output;
+		$template->clear_params;
 	}
 	
 	# TODO: should really add this to renderedfiles and call
diff --git a/IkiWiki/Plugin/meta.pm b/IkiWiki/Plugin/meta.pm
index 41d096e0e..d4b4e5db5 100644
--- a/IkiWiki/Plugin/meta.pm
+++ b/IkiWiki/Plugin/meta.pm
@@ -56,8 +56,10 @@ sub pagetemplate ($$) { #{{{
         my $page=shift;
         my $template=shift;
 
-	$template->param(meta => $meta{$page}) if exists $meta{$page};
-	$template->param(title => $title{$page}) if exists $title{$page};
+	$template->param(meta => $meta{$page})
+		if exists $meta{$page} && $template->query(name => "meta");
+	$template->param(title => $title{$page})
+		if exists $title{$page} && $template->query(name => "title");
 } # }}}
 
 1
diff --git a/IkiWiki/Plugin/search.pm b/IkiWiki/Plugin/search.pm
index 94b37ca06..8931e3fd4 100644
--- a/IkiWiki/Plugin/search.pm
+++ b/IkiWiki/Plugin/search.pm
@@ -32,7 +32,8 @@ sub pagetemplate ($$) { #{{{
 	my $template=shift;
 
 	# Add search box to page header.
-	$template->param(searchform => qq{
+	if ($template->query(name => "searchform")) {
+		$template->param(searchform => qq{
 <form method="get" action="$IkiWiki::config{cgiurl}" id="searchform">
 <div>
 <input type="text" name="phrase" value="" size="16" />
@@ -41,6 +42,7 @@ sub pagetemplate ($$) { #{{{
 </div>
 </form>
 });
+	}
 } #}}}
 
 sub delete (@) { #{{{
diff --git a/IkiWiki/Plugin/tag.pm b/IkiWiki/Plugin/tag.pm
index 841d508bf..a6eddb019 100644
--- a/IkiWiki/Plugin/tag.pm
+++ b/IkiWiki/Plugin/tag.pm
@@ -6,10 +6,13 @@ use warnings;
 use strict;
 use IkiWiki;
 
-my %tag;
+my %tags;
 
 sub import { #{{{
-	IkiWiki::hook(type => "preprocess", id => "tag", call => \&preprocess);
+	IkiWiki::hook(type => "preprocess", id => "tag",
+		call => \&preprocess);
+	IkiWiki::hook(type => "pagetemplate", id => "tag",
+		call => \&pagetemplate);
 } # }}}
 
 sub preprocess (@) { #{{{
@@ -20,7 +23,9 @@ sub preprocess (@) { #{{{
 	my $page = $params{page};
 	delete $params{page};
 
+	$tags{$page} = [];
 	foreach my $tag (keys %params) {
+		push @{$tags{$page}}, $tag;
 		# hidden WikiLink
 		push @{$IkiWiki::links{$page}}, $tag;
 	}
@@ -28,4 +33,14 @@ sub preprocess (@) { #{{{
 	return "";
 } # }}}
 
+sub pagetemplate ($$) { #{{{
+	my $page=shift;
+	my $template=shift;
+
+	$template->param(tags => join(', ', 
+			map { IkiWiki::htmllink($page, $page, $_) } 
+				@{$tags{$page}}))
+		if exists $tags{$page} && $template->query(name => "tags");
+} # }}}
+
 1