X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/1e62e4f87fdf1441afab47a60aaf60b9246a5876..ee9153ab4254a9bc92b5bc403907db9538723c02:/IkiWiki.pm

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 1d764bae2..b4c588c3a 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -33,7 +33,21 @@ sub defaultconfig () { #{{{
 		qr/\.x?html?$/, qr/\.ikiwiki-new$/,
 		qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//,
 		qr/\.dpkg-tmp$/],
-	wiki_link_regexp => qr/\[\[(?:([^\]\|]+)\|)?([^\s\]#]+)(?:#([^\s\]]+))?\]\]/,
+	wiki_link_regexp => qr{
+		\[\[			# beginning of link
+		(?:
+			([^\]\|]+)	# 1: link text
+			\|		# followed by '|'
+		)?			# optional
+
+		([^\s\]#]+)		# 2: page to link to
+		(?:
+			\#		# '#', beginning of anchor
+			([^\s\]]+)	# 3: anchor text
+		)?			# optional
+
+		\]\]			# end of link
+	}x,
 	wiki_file_regexp => qr/(^[-[:alnum:]_.:\/+]+$)/,
 	web_commit_regexp => qr/^web commit (by (.*?(?=: |$))|from (\d+\.\d+\.\d+\.\d+)):?(.*)/,
 	verbose => 0,
@@ -78,6 +92,7 @@ sub defaultconfig () { #{{{
 	userdir => "",
 	usedirs => 1,
 	numbacklinks => 10,
+	account_creation_password => "",
 } #}}}
    
 sub checkconfig () { #{{{
@@ -111,7 +126,7 @@ sub checkconfig () { #{{{
 		unless exists $config{wikistatedir};
 	
 	if ($config{rcs}) {
-		eval qq{require IkiWiki::Rcs::$config{rcs}};
+		eval qq{use IkiWiki::Rcs::$config{rcs}};
 		if ($@) {
 			error("Failed to load RCS module IkiWiki::Rcs::$config{rcs}: $@");
 		}
@@ -191,7 +206,7 @@ sub log_message ($$) { #{{{
 
 sub possibly_foolish_untaint ($) { #{{{
 	my $tainted=shift;
-	my ($untainted)=$tainted=~/(.*)/;
+	my ($untainted)=$tainted=~/(.*)/s;
 	return $untainted;
 } #}}}
 
@@ -591,14 +606,24 @@ sub preprocess ($$$;$$) { #{{{
 		my $command=shift;
 		my $params=shift;
 		if (length $escape) {
-			return "[[$command $params]]";
+			return "\\[[$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) {
+			while ($params =~ m{
+				(?:(\w+)=)?		# 1: named parameter key?
+				(?:
+					"""(.*?)"""	# 2: triple-quoted value
+				|
+					"([^"]+)"	# 3: single-quoted value
+				|
+					(\S+)		# 4: unquoted value
+				)
+				(?:\s+|$)		# delimiter to next param
+			}sgx) {
 				my $key=$1;
 				my $val;
 				if (defined $2) {
@@ -642,20 +667,42 @@ sub preprocess ($$$;$$) { #{{{
 			return $ret;
 		}
 		else {
-			return "[[$command $params]]";
+			return "\\[[$command $params]]";
 		}
 	};
 	
-	$content =~ s{(\\?)\[\[(\w+)\s+((?:(?:\w+=)?(?:""".*?"""|"[^"]+"|[^\s\]]+)\s*)*)\]\]}{$handle->($1, $2, $3)}seg;
+	$content =~ s{
+		(\\?)		# 1: escape?
+		\[\[		# directive open
+		(\w+)		# 2: command
+		\s+
+		(		# 3: the parameters..
+			(?:
+				(?:\w+=)?		# named parameter key?
+				(?:
+					""".*?"""	# triple-quoted value
+					|
+					"[^"]+"		# single-quoted value
+					|
+					[^\s\]]+	# unquoted value
+				)
+				\s*			# whitespace or end
+							# of directive
+			)
+		*)		# 0 or more parameters
+		\]\]		# directive closed
+	}{$handle->($1, $2, $3)}sexg;
 	return $content;
 } #}}}
 
-sub filter ($$) { #{{{
+sub filter ($$$) { #{{{
 	my $page=shift;
+	my $destpage=shift;
 	my $content=shift;
 
 	run_hooks(filter => sub {
-		$content=shift->(page => $page, content => $content);
+		$content=shift->(page => $page, destpage => $destpage, 
+			content => $content);
 	});
 
 	return $content;
@@ -665,7 +712,8 @@ sub indexlink () { #{{{
 	return "<a href=\"$config{url}\">$config{wikiname}</a>";
 } #}}}
 
-sub lockwiki () { #{{{
+sub lockwiki (;$) { #{{{
+	my $wait=@_ ? shift : 1;
 	# Take an exclusive lock on the wiki to prevent multiple concurrent
 	# run issues. The lock will be dropped on program exit.
 	if (! -d $config{wikistatedir}) {
@@ -674,15 +722,21 @@ sub lockwiki () { #{{{
 	open(WIKILOCK, ">$config{wikistatedir}/lockfile") ||
 		error ("cannot write to $config{wikistatedir}/lockfile: $!");
 	if (! flock(WIKILOCK, 2 | 4)) { # LOCK_EX | LOCK_NB
-		debug("wiki seems to be locked, waiting for lock");
-		my $wait=600; # arbitrary, but don't hang forever to 
-		              # prevent process pileup
-		for (1..$wait) {
-			return if flock(WIKILOCK, 2 | 4);
-			sleep 1;
+		if ($wait) {
+			debug("wiki seems to be locked, waiting for lock");
+			my $wait=600; # arbitrary, but don't hang forever to 
+			              # prevent process pileup
+			for (1..$wait) {
+				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?)");
+		}
+		else {
+			return 0;
 		}
-		error("wiki is locked; waited $wait seconds without lock being freed (possible stuck process or stale lock?)");
 	}
+	return 1;
 } #}}}
 
 sub unlockwiki () { #{{{
@@ -736,9 +790,9 @@ sub loadindex () { #{{{
 			$depends{$page}=$items{depends}[0] if exists $items{depends};
 			$destsources{$_}=$page foreach @{$items{dest}};
 			$renderedfiles{$page}=[@{$items{dest}}];
-			$oldrenderedfiles{$page}=[@{$items{dest}}];
 			$pagecase{lc $page}=$page;
 		}
+		$oldrenderedfiles{$page}=[@{$items{dest}}];
 		$pagectime{$page}=$items{ctime}[0];
 	}
 	close IN;
@@ -788,7 +842,6 @@ sub template_params (@) { #{{{
 		return "";
 	}
 
-	require HTML::Template;
 	my @ret=(
 		filter => sub {
 			my $text_ref = shift;
@@ -803,6 +856,7 @@ sub template_params (@) { #{{{
 } #}}}
 
 sub template ($;@) { #{{{
+	require HTML::Template;
 	HTML::Template->new(template_params(@_));
 } #}}}
 
@@ -967,7 +1021,21 @@ sub pagespec_translate ($) { #{{{
 
 	# Convert spec to perl code.
 	my $code="";
-	while ($spec=~m/\s*(\!|\(|\)|\w+\([^\)]+\)|[^\s()]+)\s*/ig) {
+	while ($spec=~m{
+		\s*		# ignore whitespace
+		(		# 1: match a single word
+			\!		# !
+		|
+			\(		# (
+		|
+			\)		# )
+		|
+			\w+\([^\)]+\)	# command(params)
+		|
+			[^\s()]+	# any other text
+		)
+		\s*		# ignore whitespace
+	}igx) {
 		my $word=$1;
 		if (lc $word eq "and") {
 			$code.=" &&";
@@ -1046,8 +1114,8 @@ sub match_glob ($$;@) { #{{{
 	
 	# relative matching
 	if ($glob =~ m!^\./!) {
-		$from=~s!/?[^/]+$!!;
-		$glob=~s!^\./!!;
+		$from=~s#/?[^/]+$##;
+		$glob=~s#^\./##;
 		$glob="$from/$glob" if length $from;
 	}
 
@@ -1073,18 +1141,23 @@ sub match_link ($$;@) { #{{{
 
 	# relative matching
 	if ($link =~ m!^\.! && defined $from) {
-		$from=~s!/?[^/]+$!!;
-		$link=~s!^\./!!;
+		$from=~s#/?[^/]+$##;
+		$link=~s#^\./##;
 		$link="$from/$link" if length $from;
 	}
 
 	my $links = $IkiWiki::links{$page} or return undef;
 	return IkiWiki::FailReason->new("$page has no links") unless @$links;
 	my $bestlink = IkiWiki::bestlink($from, $link);
-	return IkiWiki::FailReason->new("no such link") unless length $bestlink;
 	foreach my $p (@$links) {
-		return IkiWiki::SuccessReason->new("$page links to $link")
-			if $bestlink eq IkiWiki::bestlink($page, $p);
+		if (length $bestlink) {
+			return IkiWiki::SuccessReason->new("$page links to $link")
+				if $bestlink eq IkiWiki::bestlink($page, $p);
+		}
+		else {
+			return IkiWiki::SuccessReason->new("$page links to page matching $link")
+				if match_glob($p, $link, %params);
+		}
 	}
 	return IkiWiki::FailReason->new("$page does not link to $link");
 } #}}}