X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/b4eaef94bd89fcc003aa2db923f08d32e7fa9cc7..e00a8931a0ce7291975bd200e3a0e03d36a301b4:/IkiWiki.pm

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 761160eca..fdb62f7da 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,
@@ -192,7 +206,7 @@ sub log_message ($$) { #{{{
 
 sub possibly_foolish_untaint ($) { #{{{
 	my $tainted=shift;
-	my ($untainted)=$tainted=~/(.*)/;
+	my ($untainted)=$tainted=~/(.*)/s;
 	return $untainted;
 } #}}}
 
@@ -599,7 +613,17 @@ sub preprocess ($$$;$$) { #{{{
 			# 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) {
@@ -647,7 +671,27 @@ sub preprocess ($$$;$$) { #{{{
 		}
 	};
 	
-	$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;
 } #}}}
 
@@ -977,7 +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.=" &&";
@@ -1056,8 +1114,8 @@ sub match_glob ($$;@) { #{{{
 	
 	# relative matching
 	if ($glob =~ m!^\./!) {
-		$from=~s!/?[^/]+$!!;
-		$glob=~s!^\./!!;
+		$from=~s#/?[^/]+$##;
+		$glob=~s#^\./##;
 		$glob="$from/$glob" if length $from;
 	}
 
@@ -1083,18 +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");
 } #}}}