X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/ad6f4c525311f786769e233baf9913eea5303ec0..1a8beaf4c6f09ee693bdc9447f74b21512509190:/IkiWiki.pm

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 70d4a7a56..a6869d454 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -4,19 +4,36 @@ package IkiWiki;
 use warnings;
 use strict;
 use Encode;
+use HTML::Entities;
 use open qw{:utf8 :std};
 
-use vars qw{%config %links %oldlinks %oldpagemtime %pagectime
-            %renderedfiles %pagesources %depends %hooks};
+use vars qw{%config %links %oldlinks %oldpagemtime %pagectime %pagecase
+            %renderedfiles %oldrenderedfiles %pagesources %depends %hooks
+	    %forcerebuild};
+
+use Exporter q{import};
+our @EXPORT = qw(hook debug error template htmlpage add_depends pagespec_match
+                 bestlink htmllink readfile writefile pagetype srcfile pagename
+                 displaytime will_render
+                 %config %links %renderedfiles %pagesources);
+our $VERSION = 1.01; # plugin interface version
+
+# Optimisation.
+use Memoize;
+memoize("abs2rel");
+memoize("pagespec_translate");
+
+my $installdir=''; # INSTALLDIR_AUTOREPLACE done by Makefile, DNE
+our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
 
 sub defaultconfig () { #{{{
-	wiki_file_prune_regexp => qr{((^|/).svn/|\.\.|^\.|\/\.|\.html?$|\.rss$)},
+	wiki_file_prune_regexp => qr{((^|/).svn/|\.\.|^\.|\/\.|\.x?html?$|\.rss$|\.atom$|.arch-ids/|{arch}/)},
 	wiki_link_regexp => qr/\[\[(?:([^\]\|]+)\|)?([^\s\]]+)\]\]/,
-	wiki_processor_regexp => qr/\[\[(\w+)\s+([^\]]*)\]\]/,
 	wiki_file_regexp => qr/(^[-[:alnum:]_.:\/+]+$)/,
 	verbose => 0,
+	syslog => 0,
 	wikiname => "wiki",
-	default_pageext => ".mdwn",
+	default_pageext => "mdwn",
 	cgi => 0,
 	rcs => 'svn',
 	notify => 0,
@@ -26,10 +43,12 @@ sub defaultconfig () { #{{{
 	diffurl => '',
 	anonok => 0,
 	rss => 0,
+	atom => 0,
 	discussion => 1,
 	rebuild => 0,
 	refresh => 0,
 	getctime => 0,
+	w3mmode => 0,
 	wrapper => undef,
 	wrappermode => undef,
 	svnrepo => undef,
@@ -37,21 +56,44 @@ sub defaultconfig () { #{{{
 	srcdir => undef,
 	destdir => undef,
 	pingurl => [],
-	templatedir => "/usr/share/ikiwiki/templates",
-	underlaydir => "/usr/share/ikiwiki/basewiki",
+	templatedir => "$installdir/share/ikiwiki/templates",
+	underlaydir => "$installdir/share/ikiwiki/basewiki",
 	setup => undef,
 	adminuser => undef,
 	adminemail => undef,
 	plugin => [qw{mdwn inline htmlscrubber}],
 	timeformat => '%c',
+	locale => undef,
+	sslcookie => 0,
+	httpauth => 0,
 } #}}}
-	    
+   
 sub checkconfig () { #{{{
+	# locale stuff; avoid LC_ALL since it overrides everything
+	if (defined $ENV{LC_ALL}) {
+		$ENV{LANG} = $ENV{LC_ALL};
+		delete $ENV{LC_ALL};
+	}
+	if (defined $config{locale}) {
+		eval q{use POSIX};
+		$ENV{LANG} = $config{locale}
+			if POSIX::setlocale(&POSIX::LC_TIME, $config{locale});
+	}
+
+	if ($config{w3mmode}) {
+		eval q{use Cwd q{abs_path}};
+		$config{srcdir}=possibly_foolish_untaint(abs_path($config{srcdir}));
+		$config{destdir}=possibly_foolish_untaint(abs_path($config{destdir}));
+		$config{cgiurl}="file:///\$LIB/ikiwiki-w3m.cgi/".$config{cgiurl}
+			unless $config{cgiurl} =~ m!file:///!;
+		$config{url}="file://".$config{destdir};
+	}
+
 	if ($config{cgi} && ! length $config{url}) {
 		error("Must specify url to wiki with --url when using --cgi\n");
 	}
-	if ($config{rss} && ! length $config{url}) {
-		error("Must specify url to wiki with --url when using --rss\n");
+	if (($config{rss} || $config{atom}) && ! length $config{url}) {
+		error("Must specify url to wiki with --url when using --rss or --atom\n");
 	}
 	
 	$config{wikistatedir}="$config{srcdir}/.ikiwiki"
@@ -67,6 +109,10 @@ sub checkconfig () { #{{{
 		require IkiWiki::Rcs::Stub;
 	}
 
+	run_hooks(checkconfig => sub { shift->() });
+} #}}}
+
+sub loadplugins () { #{{{
 	foreach my $plugin (@{$config{plugin}}) {
 		my $mod="IkiWiki::Plugin::".possibly_foolish_untaint($plugin);
 		eval qq{use $mod};
@@ -74,12 +120,12 @@ sub checkconfig () { #{{{
 			error("Failed to load plugin $mod: $@");
 		}
 	}
-
-	if (exists $hooks{checkconfig}) {
-                foreach my $id (keys %{$hooks{checkconfig}}) {
-                        $hooks{checkconfig}{$id}{call}->();
-                }
-        }
+	run_hooks(getopt => sub { shift->() });
+	if (grep /^-/, @ARGV) {
+		print STDERR "Unknown option: $_\n"
+			foreach grep /^-/, @ARGV;
+		usage();
+	}
 } #}}}
 
 sub error ($) { #{{{
@@ -87,12 +133,31 @@ sub error ($) { #{{{
 		print "Content-type: text/html\n\n";
 		print misctemplate("Error", "<p>Error: @_</p>");
 	}
-	die @_;
+	log_message(error => @_);
+	exit(1);
 } #}}}
 
 sub debug ($) { #{{{
 	return unless $config{verbose};
-	if (! $config{cgi}) {
+	log_message(debug => @_);
+} #}}}
+
+my $log_open=0;
+sub log_message ($$) { #{{{
+	my $type=shift;
+
+	if ($config{syslog}) {
+		require Sys::Syslog;
+		unless ($log_open) {
+			Sys::Syslog::setlogsock('unix');
+			Sys::Syslog::openlog('ikiwiki', '', 'user');
+			$log_open=1;
+		}
+		eval {
+			Sys::Syslog::syslog($type, join(" ", @_));
+		}
+	}
+	elsif (! $config{cgi}) {
 		print "@_\n";
 	}
 	else {
@@ -123,7 +188,7 @@ sub dirname ($) { #{{{
 sub pagetype ($) { #{{{
 	my $page=shift;
 	
-	if ($page =~ /\.(.*?)$/) {
+	if ($page =~ /\.([^.]+)$/) {
 		return $1 if exists $hooks{htmlize}{$1};
 	}
 	return undef;
@@ -199,14 +264,30 @@ sub writefile ($$$;$) { #{{{
 	close OUT;
 } #}}}
 
+my %cleared;
+sub will_render ($$;$) { #{{{
+	my $page=shift;
+	my $dest=shift;
+	my $clear=shift;
+
+	# Important security check.
+	if (-e "$config{destdir}/$dest" && ! $config{rebuild} &&
+	    ! grep { $_ eq $dest } (@{$renderedfiles{$page}}, @{$oldrenderedfiles{$page}})) {
+		error("$config{destdir}/$dest independently created, not overwriting with version from $page");
+	}
+
+	if (! $clear || $cleared{$page}) {
+		$renderedfiles{$page}=[$dest, grep { $_ ne $dest } @{$renderedfiles{$page}}];
+	}
+	else {
+		$renderedfiles{$page}=[$dest];
+		$cleared{$page}=1;
+	}
+} #}}}
+
 sub bestlink ($$) { #{{{
-	# Given a page and the text of a link on the page, determine which
-	# existing page that link best points to. Prefers pages under a
-	# subdirectory with the same name as the source page, failing that
-	# goes down the directory tree to the base looking for matching
-	# pages.
 	my $page=shift;
-	my $link=lc(shift);
+	my $link=shift;
 	
 	my $cwd=$page;
 	do {
@@ -215,9 +296,11 @@ sub bestlink ($$) { #{{{
 		$l.=$link;
 
 		if (exists $links{$l}) {
-			#debug("for $page, \"$link\", use $l");
 			return $l;
 		}
+		elsif (exists $pagecase{lc $l}) {
+			return $pagecase{lc $l};
+		}
 	} while $cwd=~s!/?[^/]+$!!;
 
 	#print STDERR "warning: page $page, broken link: $link\n";
@@ -250,14 +333,37 @@ sub cgiurl (@) { #{{{
 	return $config{cgiurl}."?".join("&amp;", map "$_=$params{$_}", keys %params);
 } #}}}
 
-sub styleurl (;$) { #{{{
+sub baseurl (;$) { #{{{
 	my $page=shift;
 
-	return "$config{url}/style.css" if ! defined $page;
+	return "$config{url}/" if ! defined $page;
 	
 	$page=~s/[^\/]+$//;
 	$page=~s/[^\/]+\//..\//g;
-	return $page."style.css";
+	return $page;
+} #}}}
+
+sub abs2rel ($$) { #{{{
+	# Work around very innefficient behavior in File::Spec if abs2rel
+	# is passed two relative paths. It's much faster if paths are
+	# absolute! (Debian bug #376658)
+	my $path="/".shift;
+	my $base="/".shift;
+
+	require File::Spec;
+	my $ret=File::Spec->abs2rel($path, $base);
+	$ret=~s/^// if defined $ret;
+	return $ret;
+} #}}}
+
+sub displaytime ($) { #{{{
+	my $time=shift;
+
+	eval q{use POSIX};
+	# strftime doesn't know about encodings, so make sure
+	# its output is properly treated as utf8
+	return decode_utf8(POSIX::strftime(
+			$config{timeformat}, localtime($time)));
 } #}}}
 
 sub htmllink ($$$;$$$) { #{{{
@@ -278,22 +384,22 @@ sub htmllink ($$$;$$$) { #{{{
 
 	$linktext=pagetitle(basename($link)) unless defined $linktext;
 	
-	return $linktext if length $bestlink && $page eq $bestlink;
+	return "<span class=\"selflink\">$linktext</span>"
+		if length $bestlink && $page eq $bestlink;
 	
 	# TODO BUG: %renderedfiles may not have it, if the linked to page
 	# was also added and isn't yet rendered! Note that this bug is
 	# masked by the bug that makes all new files be rendered twice.
-	if (! grep { $_ eq $bestlink } values %renderedfiles) {
+	if (! grep { $_ eq $bestlink } map { @{$_} } values %renderedfiles) {
 		$bestlink=htmlpage($bestlink);
 	}
-	if (! grep { $_ eq $bestlink } values %renderedfiles) {
+	if (! grep { $_ eq $bestlink } map { @{$_} } values %renderedfiles) {
 		return "<span><a href=\"".
-			cgiurl(do => "create", page => $link, from => $page).
+			cgiurl(do => "create", page => lc($link), from => $page).
 			"\">?</a>$linktext</span>"
 	}
 	
-	require File::Spec;
-	$bestlink=File::Spec->abs2rel($bestlink, dirname($page));
+	$bestlink=abs2rel($bestlink, dirname($page));
 	
 	if (! $noimageinline && isinlinableimage($bestlink)) {
 		return "<img src=\"$bestlink\" alt=\"$linktext\" />";
@@ -301,6 +407,119 @@ sub htmllink ($$$;$$$) { #{{{
 	return "<a href=\"$bestlink\">$linktext</a>";
 } #}}}
 
+sub htmlize ($$$) { #{{{
+	my $page=shift;
+	my $type=shift;
+	my $content=shift;
+
+	if (exists $hooks{htmlize}{$type}) {
+		$content=$hooks{htmlize}{$type}{call}->(
+			page => $page,
+			content => $content,
+		);
+	}
+	else {
+		error("htmlization of $type not supported");
+	}
+
+	run_hooks(sanitize => sub {
+		$content=shift->(
+			page => $page,
+			content => $content,
+		);
+	});
+
+	return $content;
+} #}}}
+
+sub linkify ($$$) { #{{{
+	my $lpage=shift; # the page containing the links
+	my $page=shift; # the page the link will end up on (different for inline)
+	my $content=shift;
+
+	$content =~ s{(\\?)$config{wiki_link_regexp}}{
+		$2 ? ( $1 ? "[[$2|$3]]" : htmllink($lpage, $page, titlepage($3), 0, 0, pagetitle($2)))
+		   : ( $1 ? "[[$3]]" :    htmllink($lpage, $page, titlepage($3)))
+	}eg;
+	
+	return $content;
+} #}}}
+
+my %preprocessing;
+sub preprocess ($$$;$) { #{{{
+	my $page=shift; # the page the data comes from
+	my $destpage=shift; # the page the data will appear in (different for inline)
+	my $content=shift;
+	my $scan=shift;
+
+	my $handle=sub {
+		my $escape=shift;
+		my $command=shift;
+		my $params=shift;
+		if (length $escape) {
+			return "[[$command $params]]";
+		}
+		elsif (exists $hooks{preprocess}{$command}) {
+			return "" if $scan && ! $hooks{preprocess}{$command}{scan};
+			# Note: preserve order of params, some plugins may
+			# consider it significant.
+			my @params;
+			while ($params =~ /(?:(\w+)=)?(?:"""(.*?)"""|"([^"]+)"|(\S+))(?:\s+|$)/sg) {
+				my $key=$1;
+				my $val;
+				if (defined $2) {
+					$val=$2;
+					$val=~s/\r\n/\n/mg;
+					$val=~s/^\n+//g;
+					$val=~s/\n+$//g;
+				}
+				elsif (defined $3) {
+					$val=$3;
+				}
+				elsif (defined $4) {
+					$val=$4;
+				}
+
+				if (defined $key) {
+					push @params, $key, $val;
+				}
+				else {
+					push @params, $val, '';
+				}
+			}
+			if ($preprocessing{$page}++ > 3) {
+				# Avoid loops of preprocessed pages preprocessing
+				# other pages that preprocess them, etc.
+				return "[[$command preprocessing loop detected on $page at depth $preprocessing{$page}]]";
+			}
+			my $ret=$hooks{preprocess}{$command}{call}->(
+				@params,
+				page => $page,
+				destpage => $destpage,
+			);
+			$preprocessing{$page}--;
+			return $ret;
+		}
+		else {
+			return "[[$command $params]]";
+		}
+	};
+	
+	$content =~ s{(\\?)\[\[(\w+)\s+((?:(?:\w+=)?(?:""".*?"""|"[^"]+"|[^\s\]]+)\s*)*)\]\]}{$handle->($1, $2, $3)}seg;
+	return $content;
+} #}}}
+
+sub filter ($$) {
+	my $page=shift;
+	my $content=shift;
+
+	run_hooks(filter => sub {
+		$content=shift->(page => $page, content => $content);
+	});
+
+	return $content;
+}
+
 sub indexlink () { #{{{
 	return "<a href=\"$config{url}\">$config{wikiname}</a>";
 } #}}}
@@ -336,9 +555,10 @@ sub loadindex () { #{{{
 		chomp;
 		my %items;
 		$items{link}=[];
+		$items{dest}=[];
 		foreach my $i (split(/ /, $_)) {
 			my ($item, $val)=split(/=/, $i, 2);
-			push @{$items{$item}}, $val;
+			push @{$items{$item}}, decode_entities($val);
 		}
 
 		next unless exists $items{src}; # skip bad lines for now
@@ -349,9 +569,10 @@ sub loadindex () { #{{{
 			$oldpagemtime{$page}=$items{mtime}[0];
 			$oldlinks{$page}=[@{$items{link}}];
 			$links{$page}=[@{$items{link}}];
-			$depends{$page}=join(" ", @{$items{depends}})
-				if exists $items{depends};
-			$renderedfiles{$page}=$items{dest}[0];
+			$depends{$page}=$items{depends}[0] if exists $items{depends};
+			$renderedfiles{$page}=[@{$items{dest}}];
+			$oldrenderedfiles{$page}=[@{$items{dest}}];
+			$pagecase{lc $page}=$page;
 		}
 		$pagectime{$page}=$items{ctime}[0];
 	}
@@ -359,6 +580,8 @@ sub loadindex () { #{{{
 } #}}}
 
 sub saveindex () { #{{{
+	run_hooks(savestate => sub { shift->() });
+
 	if (! -d $config{wikistatedir}) {
 		mkdir($config{wikistatedir});
 	}
@@ -368,11 +591,11 @@ sub saveindex () { #{{{
 		next unless $oldpagemtime{$page};
 		my $line="mtime=$oldpagemtime{$page} ".
 			"ctime=$pagectime{$page} ".
-			"src=$pagesources{$page} ".
-			"dest=$renderedfiles{$page}";
+			"src=$pagesources{$page}";
+		$line.=" dest=$_" foreach @{$renderedfiles{$page}};
 		$line.=" link=$_" foreach @{$links{$page}};
 		if (exists $depends{$page}) {
-			$line.=" depends=$_" foreach split " ", $depends{$page};
+			$line.=" depends=".encode_entities($depends{$page}, " \t\n");
 		}
 		print OUT $line."\n";
 	}
@@ -387,14 +610,17 @@ sub template_params (@) { #{{{
 			my $text_ref = shift;
 			$$text_ref=&Encode::decode_utf8($$text_ref);
 		},
-		filename => "$config{templatedir}/$filename", @_;
+		filename => "$config{templatedir}/$filename",
+		loop_context_vars => 1,
+		die_on_bad_params => 0,
+		@_;
 } #}}}
 
 sub template ($;@) { #{{{
 	HTML::Template->new(template_params(@_));
 } #}}}
 
-sub misctemplate ($$) { #{{{
+sub misctemplate ($$;@) { #{{{
 	my $title=shift;
 	my $pagebody=shift;
 	
@@ -404,63 +630,208 @@ sub misctemplate ($$) { #{{{
 		indexlink => indexlink(),
 		wikiname => $config{wikiname},
 		pagebody => $pagebody,
-		styleurl => styleurl(),
-		baseurl => "$config{url}/",
+		baseurl => baseurl(),
+		@_,
 	);
+	run_hooks(pagetemplate => sub {
+		shift->(page => "", destpage => "", template => $template);
+	});
 	return $template->output;
 }#}}}
 
-sub glob_match ($$) { #{{{
-	my $page=shift;
-	my $glob=shift;
+sub hook (@) { # {{{
+	my %param=@_;
+	
+	if (! exists $param{type} || ! ref $param{call} || ! exists $param{id}) {
+		error "hook requires type, call, and id parameters";
+	}
 
-	if ($glob =~ /^link\((.+)\)$/) {
-		my $rev = $links{$page} or return undef;
-		foreach my $p (@$rev) {
-			return 1 if lc $p eq $1;
-		}
-		return 0;
-	} elsif ($glob =~ /^backlink\((.+)\)$/) {
-		my $rev = $links{$1} or return undef;
-		foreach my $p (@$rev) {
-			return 1 if lc $p eq $page;
+	return if $param{no_override} && exists $hooks{$param{type}}{$param{id}};
+	
+	$hooks{$param{type}}{$param{id}}=\%param;
+} # }}}
+
+sub run_hooks ($$) { # {{{
+	# Calls the given sub for each hook of the given type,
+	# passing it the hook function to call.
+	my $type=shift;
+	my $sub=shift;
+
+	if (exists $hooks{$type}) {
+		foreach my $id (keys %{$hooks{$type}}) {
+			$sub->($hooks{$type}{$id}{call});
 		}
-		return 0;
-	} else {
-		# turn glob into safe regexp
-		$glob=quotemeta($glob);
-		$glob=~s/\\\*/.*/g;
-		$glob=~s/\\\?/./g;
-		$glob=~s!\\/!/!g;
-		
-		return $page=~/^$glob$/i;
 	}
 } #}}}
 
-sub globlist_match ($$) { #{{{
-	my $page=shift;
-	my @globlist=split(" ", shift);
+sub globlist_to_pagespec ($) { #{{{
+	my @globlist=split(' ', shift);
 
-	# check any negated globs first
+	my (@spec, @skip);
 	foreach my $glob (@globlist) {
-		return 0 if $glob=~/^!(.*)/ && glob_match($page, $1);
+		if ($glob=~/^!(.*)/) {
+			push @skip, $glob;
+		}
+		else {
+			push @spec, $glob;
+		}
 	}
 
-	foreach my $glob (@globlist) {
-		return 1 if glob_match($page, $glob);
+	my $spec=join(" or ", @spec);
+	if (@skip) {
+		my $skip=join(" and ", @skip);
+		if (length $spec) {
+			$spec="$skip and ($spec)";
+		}
+		else {
+			$spec=$skip;
+		}
 	}
-	
-	return 0;
+	return $spec;
 } #}}}
 
-sub hook (@) { # {{{
-	my %param=@_;
-	
-	if (! exists $param{type} || ! ref $param{call} || ! exists $param{id}) {
-		error "hook requires type, call, and id parameters";
+sub is_globlist ($) { #{{{
+	my $s=shift;
+	$s=~/[^\s]+\s+([^\s]+)/ && $1 ne "and" && $1 ne "or";
+} #}}}
+
+sub safequote ($) { #{{{
+	my $s=shift;
+	$s=~s/[{}]//g;
+	return "q{$s}";
+} #}}}
+
+sub pagespec_merge ($$) { #{{{
+	my $a=shift;
+	my $b=shift;
+
+	return $a if $a eq $b;
+
+        # Support for old-style GlobLists.
+        if (is_globlist($a)) {
+                $a=globlist_to_pagespec($a);
+        }
+        if (is_globlist($b)) {
+                $b=globlist_to_pagespec($b);
+        }
+
+	return "($a) or ($b)";
+} #}}}
+
+sub pagespec_translate ($) { #{{{
+	# This assumes that $page is in scope in the function
+	# that evalulates the translated pagespec code.
+	my $spec=shift;
+
+	# Support for old-style GlobLists.
+	if (is_globlist($spec)) {
+		$spec=globlist_to_pagespec($spec);
 	}
+
+	# Convert spec to perl code.
+	my $code="";
+	while ($spec=~m/\s*(\!|\(|\)|\w+\([^\)]+\)|[^\s()]+)\s*/ig) {
+		my $word=$1;
+		if (lc $word eq "and") {
+			$code.=" &&";
+		}
+		elsif (lc $word eq "or") {
+			$code.=" ||";
+		}
+		elsif ($word eq "(" || $word eq ")" || $word eq "!") {
+			$code.=" ".$word;
+		}
+		elsif ($word =~ /^(link|backlink|created_before|created_after|creation_month|creation_year|creation_day)\((.+)\)$/) {
+			$code.=" match_$1(\$page, ".safequote($2).")";
+		}
+		else {
+			$code.=" match_glob(\$page, ".safequote($word).")";
+		}
+	}
+
+	return $code;
+} #}}}
+
+sub add_depends ($$) { #{{{
+	my $page=shift;
+	my $pagespec=shift;
 	
-	$hooks{$param{type}}{$param{id}}=\%param;
+	if (! exists $depends{$page}) {
+		$depends{$page}=$pagespec;
+	}
+	else {
+		$depends{$page}=pagespec_merge($depends{$page}, $pagespec);
+	}
 } # }}}
 
+sub pagespec_match ($$) { #{{{
+	my $page=shift;
+	my $spec=shift;
+
+	return eval pagespec_translate($spec);
+} #}}}
+
+sub match_glob ($$) { #{{{
+	my $page=shift;
+	my $glob=shift;
+
+	# turn glob into safe regexp
+	$glob=quotemeta($glob);
+	$glob=~s/\\\*/.*/g;
+	$glob=~s/\\\?/./g;
+
+	return $page=~/^$glob$/i;
+} #}}}
+
+sub match_link ($$) { #{{{
+	my $page=shift;
+	my $link=lc(shift);
+
+	my $links = $links{$page} or return undef;
+	foreach my $p (@$links) {
+		return 1 if lc $p eq $link;
+	}
+	return 0;
+} #}}}
+
+sub match_backlink ($$) { #{{{
+	match_link(pop, pop);
+} #}}}
+
+sub match_created_before ($$) { #{{{
+	my $page=shift;
+	my $testpage=shift;
+
+	if (exists $pagectime{$testpage}) {
+		return $pagectime{$page} < $pagectime{$testpage};
+	}
+	else {
+		return 0;
+	}
+} #}}}
+
+sub match_created_after ($$) { #{{{
+	my $page=shift;
+	my $testpage=shift;
+
+	if (exists $pagectime{$testpage}) {
+		return $pagectime{$page} > $pagectime{$testpage};
+	}
+	else {
+		return 0;
+	}
+} #}}}
+
+sub match_creation_day ($$) { #{{{
+	return ((gmtime($pagectime{shift()}))[3] == shift);
+} #}}}
+
+sub match_creation_month ($$) { #{{{
+	return ((gmtime($pagectime{shift()}))[4] + 1 == shift);
+} #}}}
+
+sub match_creation_year ($$) { #{{{
+	return ((gmtime($pagectime{shift()}))[5] + 1900 == shift);
+} #}}}
+
 1