* Split off an IkiWiki.pm out of ikiwiki and have all the other modules use

  it, this will allow for adding a unit test suite.

16 files changed, 416 insertions, 392 deletions

diff --git a/IkiWiki.pm b/IkiWiki.pm
new file mode 100644
index 000000000..31228883f
--- /dev/null
+++ b/IkiWiki.pm
@@ -0,0 +1,397 @@
+#!/usr/bin/perl
+
+package IkiWiki;
+use warnings;
+use strict;
+use File::Spec;
+use HTML::Template;
+
+use vars qw{%config %links %oldlinks %oldpagemtime %pagectime
+            %renderedfiles %pagesources %depends %plugins};
+
+sub checkconfig () { #{{{
+	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{hyperestraier} && ! length $config{url}) {
+		error("Must specify --url when using --hyperestraier\n");
+	}
+	
+	$config{wikistatedir}="$config{srcdir}/.ikiwiki"
+		unless exists $config{wikistatedir};
+	
+	if ($config{svn}) {
+		require IkiWiki::Rcs::SVN;
+		$config{rcs}=1;
+	}
+	else {
+		require IkiWiki::Rcs::Stub;
+		$config{rcs}=0;
+	}
+
+	foreach my $plugin (@{$config{plugin}}) {
+		my $mod="IkiWiki::Plugin::".possibly_foolish_untaint($plugin);
+		eval qq{use $mod};
+		if ($@) {
+			error("Failed to load plugin $mod: $@");
+		}
+	}
+} #}}}
+
+sub error ($) { #{{{
+	if ($config{cgi}) {
+		print "Content-type: text/html\n\n";
+		print misctemplate("Error", "<p>Error: @_</p>");
+	}
+	die @_;
+} #}}}
+
+sub debug ($) { #{{{
+	return unless $config{verbose};
+	if (! $config{cgi}) {
+		print "@_\n";
+	}
+	else {
+		print STDERR "@_\n";
+	}
+} #}}}
+
+sub possibly_foolish_untaint ($) { #{{{
+	my $tainted=shift;
+	my ($untainted)=$tainted=~/(.*)/;
+	return $untainted;
+} #}}}
+
+sub basename ($) { #{{{
+	my $file=shift;
+
+	$file=~s!.*/+!!;
+	return $file;
+} #}}}
+
+sub dirname ($) { #{{{
+	my $file=shift;
+
+	$file=~s!/*[^/]+$!!;
+	return $file;
+} #}}}
+
+sub pagetype ($) { #{{{
+	my $page=shift;
+	
+	if ($page =~ /\.mdwn$/) {
+		return ".mdwn";
+	}
+	else {
+		return "unknown";
+	}
+} #}}}
+
+sub pagename ($) { #{{{
+	my $file=shift;
+
+	my $type=pagetype($file);
+	my $page=$file;
+	$page=~s/\Q$type\E*$// unless $type eq 'unknown';
+	return $page;
+} #}}}
+
+sub htmlpage ($) { #{{{
+	my $page=shift;
+
+	return $page.".html";
+} #}}}
+
+sub srcfile ($) { #{{{
+	my $file=shift;
+
+	return "$config{srcdir}/$file" if -e "$config{srcdir}/$file";
+	return "$config{underlaydir}/$file" if -e "$config{underlaydir}/$file";
+	error("internal error: $file cannot be found");
+} #}}}
+
+sub readfile ($;$) { #{{{
+	my $file=shift;
+	my $binary=shift;
+
+	if (-l $file) {
+		error("cannot read a symlink ($file)");
+	}
+	
+	local $/=undef;
+	open (IN, $file) || error("failed to read $file: $!");
+	binmode(IN) if $binary;
+	my $ret=<IN>;
+	close IN;
+	return $ret;
+} #}}}
+
+sub writefile ($$$;$) { #{{{
+	my $file=shift; # can include subdirs
+	my $destdir=shift; # directory to put file in
+	my $content=shift;
+	my $binary=shift;
+	
+	my $test=$file;
+	while (length $test) {
+		if (-l "$destdir/$test") {
+			error("cannot write to a symlink ($test)");
+		}
+		$test=dirname($test);
+	}
+
+	my $dir=dirname("$destdir/$file");
+	if (! -d $dir) {
+		my $d="";
+		foreach my $s (split(m!/+!, $dir)) {
+			$d.="$s/";
+			if (! -d $d) {
+				mkdir($d) || error("failed to create directory $d: $!");
+			}
+		}
+	}
+	
+	open (OUT, ">$destdir/$file") || error("failed to write $destdir/$file: $!");
+	binmode(OUT) if $binary;
+	print OUT $content;
+	close OUT;
+} #}}}
+
+sub bestlink ($$) { #{{{
+	# 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 $cwd=$page;
+	do {
+		my $l=$cwd;
+		$l.="/" if length $l;
+		$l.=$link;
+
+		if (exists $links{$l}) {
+			#debug("for $page, \"$link\", use $l");
+			return $l;
+		}
+	} while $cwd=~s!/?[^/]+$!!;
+
+	#print STDERR "warning: page $page, broken link: $link\n";
+	return "";
+} #}}}
+
+sub isinlinableimage ($) { #{{{
+	my $file=shift;
+	
+	$file=~/\.(png|gif|jpg|jpeg)$/i;
+} #}}}
+
+sub pagetitle ($) { #{{{
+	my $page=shift;
+	$page=~s/__(\d+)__/&#$1;/g;
+	$page=~y/_/ /;
+	return $page;
+} #}}}
+
+sub titlepage ($) { #{{{
+	my $title=shift;
+	$title=~y/ /_/;
+	$title=~s/([^-[:alnum:]_:+\/.])/"__".ord($1)."__"/eg;
+	return $title;
+} #}}}
+
+sub cgiurl (@) { #{{{
+	my %params=@_;
+
+	return $config{cgiurl}."?".join("&amp;", map "$_=$params{$_}", keys %params);
+} #}}}
+
+sub styleurl (;$) { #{{{
+	my $page=shift;
+
+	return "$config{url}/style.css" if ! defined $page;
+	
+	$page=~s/[^\/]+$//;
+	$page=~s/[^\/]+\//..\//g;
+	return $page."style.css";
+} #}}}
+
+sub htmllink ($$;$$$) { #{{{
+	my $page=shift;
+	my $link=shift;
+	my $noimageinline=shift; # don't turn links into inline html images
+	my $forcesubpage=shift; # force a link to a subpage
+	my $linktext=shift; # set to force the link text to something
+
+	my $bestlink;
+	if (! $forcesubpage) {
+		$bestlink=bestlink($page, $link);
+	}
+	else {
+		$bestlink="$page/".lc($link);
+	}
+
+	$linktext=pagetitle(basename($link)) unless defined $linktext;
+	
+	return $linktext 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 mentioned below that makes all new files
+	# be rendered twice.
+	if (! grep { $_ eq $bestlink } values %renderedfiles) {
+		$bestlink=htmlpage($bestlink);
+	}
+	if (! grep { $_ eq $bestlink } values %renderedfiles) {
+		return "<span><a href=\"".
+			cgiurl(do => "create", page => $link, from =>$page).
+			"\">?</a>$linktext</span>"
+	}
+	
+	$bestlink=File::Spec->abs2rel($bestlink, dirname($page));
+	
+	if (! $noimageinline && isinlinableimage($bestlink)) {
+		return "<img src=\"$bestlink\" alt=\"$linktext\" />";
+	}
+	return "<a href=\"$bestlink\">$linktext</a>";
+} #}}}
+
+sub indexlink () { #{{{
+	return "<a href=\"$config{url}\">$config{wikiname}</a>";
+} #}}}
+
+sub lockwiki () { #{{{
+	# Take an exclusive lock on the wiki to prevent multiple concurrent
+	# run issues. The lock will be dropped on program exit.
+	if (! -d $config{wikistatedir}) {
+		mkdir($config{wikistatedir});
+	}
+	open(WIKILOCK, ">$config{wikistatedir}/lockfile") ||
+		error ("cannot write to $config{wikistatedir}/lockfile: $!");
+	if (! flock(WIKILOCK, 2 | 4)) {
+		debug("wiki seems to be locked, waiting for lock");
+		my $wait=600; # arbitrary, but don't hang forever to 
+		              # prevent process pileup
+		for (1..600) {
+			return if flock(WIKILOCK, 2 | 4);
+			sleep 1;
+		}
+		error("wiki is locked; waited $wait seconds without lock being freed (possible stuck process or stale lock?)");
+	}
+} #}}}
+
+sub unlockwiki () { #{{{
+	close WIKILOCK;
+} #}}}
+
+sub loadindex () { #{{{
+	open (IN, "$config{wikistatedir}/index") || return;
+	while (<IN>) {
+		$_=possibly_foolish_untaint($_);
+		chomp;
+		my %items;
+		$items{link}=[];
+		foreach my $i (split(/ /, $_)) {
+			my ($item, $val)=split(/=/, $i, 2);
+			push @{$items{$item}}, $val;
+		}
+
+		next unless exists $items{src}; # skip bad lines for now
+
+		my $page=pagename($items{src}[0]);
+		if (! $config{rebuild}) {
+			$pagesources{$page}=$items{src}[0];
+			$oldpagemtime{$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];
+		}
+		$pagectime{$page}=$items{ctime}[0];
+	}
+	close IN;
+} #}}}
+
+sub saveindex () { #{{{
+	if (! -d $config{wikistatedir}) {
+		mkdir($config{wikistatedir});
+	}
+	open (OUT, ">$config{wikistatedir}/index") || 
+		error("cannot write to $config{wikistatedir}/index: $!");
+	foreach my $page (keys %oldpagemtime) {
+		next unless $oldpagemtime{$page};
+		my $line="mtime=$oldpagemtime{$page} ".
+			"ctime=$pagectime{$page} ".
+			"src=$pagesources{$page} ".
+			"dest=$renderedfiles{$page}";
+		$line.=" link=$_" foreach @{$links{$page}};
+		if (exists $depends{$page}) {
+			$line.=" depends=$_" foreach split " ", $depends{$page};
+		}
+		print OUT $line."\n";
+	}
+	close OUT;
+} #}}}
+
+sub misctemplate ($$) { #{{{
+	my $title=shift;
+	my $pagebody=shift;
+	
+	my $template=HTML::Template->new(
+		filename => "$config{templatedir}/misc.tmpl"
+	);
+	$template->param(
+		title => $title,
+		indexlink => indexlink(),
+		wikiname => $config{wikiname},
+		pagebody => $pagebody,
+		styleurl => styleurl(),
+		baseurl => "$config{url}/",
+	);
+	return $template->output;
+}#}}}
+
+sub glob_match ($$) { #{{{
+	my $page=shift;
+	my $glob=shift;
+
+	# turn glob into safe regexp
+	$glob=quotemeta($glob);
+	$glob=~s/\\\*/.*/g;
+	$glob=~s/\\\?/./g;
+	$glob=~s!\\/!/!g;
+	
+	$page=~/^$glob$/i;
+} #}}}
+
+sub globlist_match ($$) { #{{{
+	my $page=shift;
+	my @globlist=split(" ", shift);
+
+	# check any negated globs first
+	foreach my $glob (@globlist) {
+		return 0 if $glob=~/^!(.*)/ && glob_match($page, $1);
+	}
+
+	foreach my $glob (@globlist) {
+		return 1 if glob_match($page, $glob);
+	}
+	
+	return 0;
+} #}}}
+
+sub register_plugin ($$$) { # {{{
+	my $type=shift;
+	my $command=shift;
+	my $function=shift;
+	
+	$plugins{$type}{$command}=$function;
+} # }}}
+
+1
diff --git a/IkiWiki/CGI.pm b/IkiWiki/CGI.pm
index 74ed2f217..e219c8c1c 100644
--- a/IkiWiki/CGI.pm
+++ b/IkiWiki/CGI.pm
@@ -2,6 +2,7 @@
 
 use warnings;
 use strict;
+use IkiWiki;
 use IkiWiki::UserInfo;
 
 package IkiWiki;
diff --git a/IkiWiki/Plugin/brokenlinks.pm b/IkiWiki/Plugin/brokenlinks.pm
index 9485da398..75c819d76 100644
--- a/IkiWiki/Plugin/brokenlinks.pm
+++ b/IkiWiki/Plugin/brokenlinks.pm
@@ -4,6 +4,7 @@ package IkiWiki::Plugin::brokenlinks;
 
 use warnings;
 use strict;
+use IkiWiki;
 
 sub import { #{{{
 	IkiWiki::register_plugin("preprocess", "brokenlinks", \&preprocess);
diff --git a/IkiWiki/Plugin/inline.pm b/IkiWiki/Plugin/inline.pm
index 53ea5bf18..c554774f6 100644
--- a/IkiWiki/Plugin/inline.pm
+++ b/IkiWiki/Plugin/inline.pm
@@ -4,6 +4,7 @@ package IkiWiki::Plugin::inline;
 
 use warnings;
 use strict;
+use IkiWiki;
 
 sub import { #{{{
 	IkiWiki::register_plugin("preprocess", "inline", \&IkiWiki::preprocess_inline);
diff --git a/IkiWiki/Plugin/orphans.pm b/IkiWiki/Plugin/orphans.pm
index 06b51bddc..bd3c6b8b9 100644
--- a/IkiWiki/Plugin/orphans.pm
+++ b/IkiWiki/Plugin/orphans.pm
@@ -4,6 +4,7 @@ package IkiWiki::Plugin::orphans;
 
 use warnings;
 use strict;
+use IkiWiki;
 
 sub import { #{{{
 	IkiWiki::register_plugin("preprocess", "orphans", \&preprocess);
diff --git a/IkiWiki/Plugin/pagecount.pm b/IkiWiki/Plugin/pagecount.pm
index 865ab4c39..fc69e449b 100644
--- a/IkiWiki/Plugin/pagecount.pm
+++ b/IkiWiki/Plugin/pagecount.pm
@@ -4,6 +4,7 @@ package IkiWiki::Plugin::pagecount;
 
 use warnings;
 use strict;
+use IkiWiki;
 
 sub import { #{{{
 	IkiWiki::register_plugin("preprocess", "pagecount", \&preprocess);
diff --git a/IkiWiki/Plugin/skeleton.pm b/IkiWiki/Plugin/skeleton.pm
index e8d3db0cc..c9a7a421d 100644
--- a/IkiWiki/Plugin/skeleton.pm
+++ b/IkiWiki/Plugin/skeleton.pm
@@ -5,6 +5,7 @@ package IkiWiki::Plugin::skeleton;
 
 use warnings;
 use strict;
+use IkiWiki;
 
 sub import { #{{{
 	IkiWiki::register_plugin("preprocess", "skeleton", \&preprocess);
diff --git a/IkiWiki/Rcs/SVN.pm b/IkiWiki/Rcs/SVN.pm
index 358f46948..b45b69197 100644
--- a/IkiWiki/Rcs/SVN.pm
+++ b/IkiWiki/Rcs/SVN.pm
@@ -3,6 +3,7 @@
 
 use warnings;
 use strict;
+use IkiWiki;
 
 package IkiWiki;
 		
diff --git a/IkiWiki/Rcs/Stub.pm b/IkiWiki/Rcs/Stub.pm
index 9bbfde352..15e6cfb48 100644
--- a/IkiWiki/Rcs/Stub.pm
+++ b/IkiWiki/Rcs/Stub.pm
@@ -3,6 +3,7 @@
 
 use warnings;
 use strict;
+use IkiWiki;
 
 package IkiWiki;
 
diff --git a/IkiWiki/Render.pm b/IkiWiki/Render.pm
index 9ece00157..35e279a68 100644
--- a/IkiWiki/Render.pm
+++ b/IkiWiki/Render.pm
@@ -5,6 +5,7 @@ package IkiWiki;
 use warnings;
 use strict;
 use File::Spec;
+use IkiWiki;
 
 sub linkify ($$) { #{{{
 	my $content=shift;
diff --git a/IkiWiki/Setup.pm b/IkiWiki/Setup.pm
index 40ed78862..9f210dec8 100644
--- a/IkiWiki/Setup.pm
+++ b/IkiWiki/Setup.pm
@@ -2,6 +2,7 @@
 
 use warnings;
 use strict;
+use IkiWiki;
 
 package IkiWiki;
 
diff --git a/IkiWiki/UserInfo.pm b/IkiWiki/UserInfo.pm
index 9a165dad1..fabe495bb 100644
--- a/IkiWiki/UserInfo.pm
+++ b/IkiWiki/UserInfo.pm
@@ -3,6 +3,7 @@
 use warnings;
 use strict;
 use Storable;
+use IkiWiki;
 
 package IkiWiki;
 
diff --git a/IkiWiki/Wrapper.pm b/IkiWiki/Wrapper.pm
index d72368446..e5f718f71 100644
--- a/IkiWiki/Wrapper.pm
+++ b/IkiWiki/Wrapper.pm
@@ -4,6 +4,7 @@ use warnings;
 use strict;
 use Cwd q{abs_path};
 use Data::Dumper;
+use IkiWiki;
 
 package IkiWiki;
 
diff --git a/debian/changelog b/debian/changelog
index 5e1c05f30..192b49dae 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -24,8 +24,10 @@ ikiwiki (1.1) UNRELEASED; urgency=low
     different location) already exists.
   * Add an orphans plugin for finding pages that nothing links to.
   * Removed backlinks page, which it turns out nothing used.
+  * Split off an IkiWiki.pm out of ikiwiki and have all the other modules use
+    it, this will allow for adding a unit test suite.
 
- -- Joey Hess <joeyh@debian.org>  Tue,  2 May 2006 01:45:34 -0400
+ -- Joey Hess <joeyh@debian.org>  Tue,  2 May 2006 02:51:06 -0400
 
 ikiwiki (1.0) unstable; urgency=low
 
diff --git a/doc/roadmap.mdwn b/doc/roadmap.mdwn
index 929dd8b96..3450dbad2 100644
--- a/doc/roadmap.mdwn
+++ b/doc/roadmap.mdwn
@@ -11,9 +11,11 @@ Released 29 April 2006.
 
 # 2.0
 
+* Unit test suite (with tests of at least core stuff like
+  [[GlobList]]).
 * [[todo/Plugin]] mechanism. 
 * Should have fully working [[todo/utf8]] support.
 * [[Optimised_rendering|todo/optimisations]] if possible. Deal with other scalability issues.
 * improved [[todo/html]] stylesheets and templates
 * A version of the logo in a different font, possibly with the dots on the i's highlighted in some other color.
-* Support for at least one RCS aside from svn. Once it supports two, it should quickly grow to support them all..
\ No newline at end of file
+* Support for at least one RCS aside from svn. Once it supports two, it should quickly grow to support them all..
diff --git a/ikiwiki b/ikiwiki
index 8367e9118..75114bb66 100755
--- a/ikiwiki
+++ b/ikiwiki
@@ -4,12 +4,8 @@ $ENV{PATH}="/usr/local/bin:/usr/bin:/bin";
 package IkiWiki;
 use warnings;
 use strict;
-use File::Spec;
-use HTML::Template;
 use lib '.'; # For use without installation, removed by Makefile.
-
-use vars qw{%config %links %oldlinks %oldpagemtime %pagectime
-            %renderedfiles %pagesources %depends %plugins};
+use IkiWiki;
 
 sub usage () { #{{{
 	die "usage: ikiwiki [options] source dest\n";
@@ -111,391 +107,6 @@ sub getconfig () { #{{{
 	}
 } #}}}
 
-sub checkconfig () { #{{{
-	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{hyperestraier} && ! length $config{url}) {
-		error("Must specify --url when using --hyperestraier\n");
-	}
-	
-	$config{wikistatedir}="$config{srcdir}/.ikiwiki"
-		unless exists $config{wikistatedir};
-	
-	if ($config{svn}) {
-		require IkiWiki::Rcs::SVN;
-		$config{rcs}=1;
-	}
-	else {
-		require IkiWiki::Rcs::Stub;
-		$config{rcs}=0;
-	}
-
-	foreach my $plugin (@{$config{plugin}}) {
-		my $mod="IkiWiki::Plugin::".possibly_foolish_untaint($plugin);
-		eval qq{use $mod};
-		if ($@) {
-			error("Failed to load plugin $mod: $@");
-		}
-	}
-} #}}}
-
-sub error ($) { #{{{
-	if ($config{cgi}) {
-		print "Content-type: text/html\n\n";
-		print misctemplate("Error", "<p>Error: @_</p>");
-	}
-	die @_;
-} #}}}
-
-sub possibly_foolish_untaint ($) { #{{{
-	my $tainted=shift;
-	my ($untainted)=$tainted=~/(.*)/;
-	return $untainted;
-} #}}}
-
-sub debug ($) { #{{{
-	return unless $config{verbose};
-	if (! $config{cgi}) {
-		print "@_\n";
-	}
-	else {
-		print STDERR "@_\n";
-	}
-} #}}}
-
-sub basename ($) { #{{{
-	my $file=shift;
-
-	$file=~s!.*/+!!;
-	return $file;
-} #}}}
-
-sub dirname ($) { #{{{
-	my $file=shift;
-
-	$file=~s!/*[^/]+$!!;
-	return $file;
-} #}}}
-
-sub pagetype ($) { #{{{
-	my $page=shift;
-	
-	if ($page =~ /\.mdwn$/) {
-		return ".mdwn";
-	}
-	else {
-		return "unknown";
-	}
-} #}}}
-
-sub pagename ($) { #{{{
-	my $file=shift;
-
-	my $type=pagetype($file);
-	my $page=$file;
-	$page=~s/\Q$type\E*$// unless $type eq 'unknown';
-	return $page;
-} #}}}
-
-sub htmlpage ($) { #{{{
-	my $page=shift;
-
-	return $page.".html";
-} #}}}
-
-sub srcfile ($) { #{{{
-	my $file=shift;
-
-	return "$config{srcdir}/$file" if -e "$config{srcdir}/$file";
-	return "$config{underlaydir}/$file" if -e "$config{underlaydir}/$file";
-	error("internal error: $file cannot be found");
-} #}}}
-
-sub readfile ($;$) { #{{{
-	my $file=shift;
-	my $binary=shift;
-
-	if (-l $file) {
-		error("cannot read a symlink ($file)");
-	}
-	
-	local $/=undef;
-	open (IN, $file) || error("failed to read $file: $!");
-	binmode(IN) if $binary;
-	my $ret=<IN>;
-	close IN;
-	return $ret;
-} #}}}
-
-sub writefile ($$$;$) { #{{{
-	my $file=shift; # can include subdirs
-	my $destdir=shift; # directory to put file in
-	my $content=shift;
-	my $binary=shift;
-	
-	my $test=$file;
-	while (length $test) {
-		if (-l "$destdir/$test") {
-			error("cannot write to a symlink ($test)");
-		}
-		$test=dirname($test);
-	}
-
-	my $dir=dirname("$destdir/$file");
-	if (! -d $dir) {
-		my $d="";
-		foreach my $s (split(m!/+!, $dir)) {
-			$d.="$s/";
-			if (! -d $d) {
-				mkdir($d) || error("failed to create directory $d: $!");
-			}
-		}
-	}
-	
-	open (OUT, ">$destdir/$file") || error("failed to write $destdir/$file: $!");
-	binmode(OUT) if $binary;
-	print OUT $content;
-	close OUT;
-} #}}}
-
-sub bestlink ($$) { #{{{
-	# 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 $cwd=$page;
-	do {
-		my $l=$cwd;
-		$l.="/" if length $l;
-		$l.=$link;
-
-		if (exists $links{$l}) {
-			#debug("for $page, \"$link\", use $l");
-			return $l;
-		}
-	} while $cwd=~s!/?[^/]+$!!;
-
-	#print STDERR "warning: page $page, broken link: $link\n";
-	return "";
-} #}}}
-
-sub isinlinableimage ($) { #{{{
-	my $file=shift;
-	
-	$file=~/\.(png|gif|jpg|jpeg)$/i;
-} #}}}
-
-sub pagetitle ($) { #{{{
-	my $page=shift;
-	$page=~s/__(\d+)__/&#$1;/g;
-	$page=~y/_/ /;
-	return $page;
-} #}}}
-
-sub titlepage ($) { #{{{
-	my $title=shift;
-	$title=~y/ /_/;
-	$title=~s/([^-[:alnum:]_:+\/.])/"__".ord($1)."__"/eg;
-	return $title;
-} #}}}
-
-sub cgiurl (@) { #{{{
-	my %params=@_;
-
-	return $config{cgiurl}."?".join("&amp;", map "$_=$params{$_}", keys %params);
-} #}}}
-
-sub styleurl (;$) { #{{{
-	my $page=shift;
-
-	return "$config{url}/style.css" if ! defined $page;
-	
-	$page=~s/[^\/]+$//;
-	$page=~s/[^\/]+\//..\//g;
-	return $page."style.css";
-} #}}}
-
-sub htmllink ($$;$$$) { #{{{
-	my $page=shift;
-	my $link=shift;
-	my $noimageinline=shift; # don't turn links into inline html images
-	my $forcesubpage=shift; # force a link to a subpage
-	my $linktext=shift; # set to force the link text to something
-
-	my $bestlink;
-	if (! $forcesubpage) {
-		$bestlink=bestlink($page, $link);
-	}
-	else {
-		$bestlink="$page/".lc($link);
-	}
-
-	$linktext=pagetitle(basename($link)) unless defined $linktext;
-	
-	return $linktext 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 mentioned below that makes all new files
-	# be rendered twice.
-	if (! grep { $_ eq $bestlink } values %renderedfiles) {
-		$bestlink=htmlpage($bestlink);
-	}
-	if (! grep { $_ eq $bestlink } values %renderedfiles) {
-		return "<span><a href=\"".
-			cgiurl(do => "create", page => $link, from =>$page).
-			"\">?</a>$linktext</span>"
-	}
-	
-	$bestlink=File::Spec->abs2rel($bestlink, dirname($page));
-	
-	if (! $noimageinline && isinlinableimage($bestlink)) {
-		return "<img src=\"$bestlink\" alt=\"$linktext\" />";
-	}
-	return "<a href=\"$bestlink\">$linktext</a>";
-} #}}}
-
-sub indexlink () { #{{{
-	return "<a href=\"$config{url}\">$config{wikiname}</a>";
-} #}}}
-
-sub lockwiki () { #{{{
-	# Take an exclusive lock on the wiki to prevent multiple concurrent
-	# run issues. The lock will be dropped on program exit.
-	if (! -d $config{wikistatedir}) {
-		mkdir($config{wikistatedir});
-	}
-	open(WIKILOCK, ">$config{wikistatedir}/lockfile") ||
-		error ("cannot write to $config{wikistatedir}/lockfile: $!");
-	if (! flock(WIKILOCK, 2 | 4)) {
-		debug("wiki seems to be locked, waiting for lock");
-		my $wait=600; # arbitrary, but don't hang forever to 
-		              # prevent process pileup
-		for (1..600) {
-			return if flock(WIKILOCK, 2 | 4);
-			sleep 1;
-		}
-		error("wiki is locked; waited $wait seconds without lock being freed (possible stuck process or stale lock?)");
-	}
-} #}}}
-
-sub unlockwiki () { #{{{
-	close WIKILOCK;
-} #}}}
-
-sub loadindex () { #{{{
-	open (IN, "$config{wikistatedir}/index") || return;
-	while (<IN>) {
-		$_=possibly_foolish_untaint($_);
-		chomp;
-		my %items;
-		$items{link}=[];
-		foreach my $i (split(/ /, $_)) {
-			my ($item, $val)=split(/=/, $i, 2);
-			push @{$items{$item}}, $val;
-		}
-
-		next unless exists $items{src}; # skip bad lines for now
-
-		my $page=pagename($items{src}[0]);
-		if (! $config{rebuild}) {
-			$pagesources{$page}=$items{src}[0];
-			$oldpagemtime{$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];
-		}
-		$pagectime{$page}=$items{ctime}[0];
-	}
-	close IN;
-} #}}}
-
-sub saveindex () { #{{{
-	if (! -d $config{wikistatedir}) {
-		mkdir($config{wikistatedir});
-	}
-	open (OUT, ">$config{wikistatedir}/index") || 
-		error("cannot write to $config{wikistatedir}/index: $!");
-	foreach my $page (keys %oldpagemtime) {
-		next unless $oldpagemtime{$page};
-		my $line="mtime=$oldpagemtime{$page} ".
-			"ctime=$pagectime{$page} ".
-			"src=$pagesources{$page} ".
-			"dest=$renderedfiles{$page}";
-		$line.=" link=$_" foreach @{$links{$page}};
-		if (exists $depends{$page}) {
-			$line.=" depends=$_" foreach split " ", $depends{$page};
-		}
-		print OUT $line."\n";
-	}
-	close OUT;
-} #}}}
-
-sub misctemplate ($$) { #{{{
-	my $title=shift;
-	my $pagebody=shift;
-	
-	my $template=HTML::Template->new(
-		filename => "$config{templatedir}/misc.tmpl"
-	);
-	$template->param(
-		title => $title,
-		indexlink => indexlink(),
-		wikiname => $config{wikiname},
-		pagebody => $pagebody,
-		styleurl => styleurl(),
-		baseurl => "$config{url}/",
-	);
-	return $template->output;
-}#}}}
-
-sub glob_match ($$) { #{{{
-	my $page=shift;
-	my $glob=shift;
-
-	# turn glob into safe regexp
-	$glob=quotemeta($glob);
-	$glob=~s/\\\*/.*/g;
-	$glob=~s/\\\?/./g;
-	$glob=~s!\\/!/!g;
-	
-	$page=~/^$glob$/i;
-} #}}}
-
-sub globlist_match ($$) { #{{{
-	my $page=shift;
-	my @globlist=split(" ", shift);
-
-	# check any negated globs first
-	foreach my $glob (@globlist) {
-		return 0 if $glob=~/^!(.*)/ && glob_match($page, $1);
-	}
-
-	foreach my $glob (@globlist) {
-		return 1 if glob_match($page, $glob);
-	}
-	
-	return 0;
-} #}}}
-
-sub register_plugin ($$$) { # {{{
-	my $type=shift;
-	my $command=shift;
-	my $function=shift;
-	
-	$plugins{$type}{$command}=$function;
-} # }}}
-
 sub main () { #{{{
 	getconfig();