From 592aa33d28cedc91a0ced418262301f518228b32 Mon Sep 17 00:00:00 2001
From: "http://www.cse.unsw.edu.au/~willu/"
 <http://www.cse.unsw.edu.au/~willu/@web>
Date: Thu, 28 Aug 2008 09:05:07 -0400
Subject: [PATCH] Updated patch

---
 doc/todo/tracking_bugs_with_dependencies.mdwn | 187 +++++++++---------
 1 file changed, 89 insertions(+), 98 deletions(-)

diff --git a/doc/todo/tracking_bugs_with_dependencies.mdwn b/doc/todo/tracking_bugs_with_dependencies.mdwn
index 7186166ce..9f9b01f67 100644
--- a/doc/todo/tracking_bugs_with_dependencies.mdwn
+++ b/doc/todo/tracking_bugs_with_dependencies.mdwn
@@ -142,22 +142,36 @@ The following three inlines work for me with this patch:
 >> rest of this patch. In a related change, commands were not able to contain `)` in their parameters.  I've extended that so the cannot
 >> contain `(` or `)`.  -- [[Will]]
 
+>>> Updated patch.  Moved the specFuncsRef to the front of the arg list.  Still haven't thought through the security implications of
+>>> having it in `%params`.  I've also removed all the debugging `print` statements.  And I've updated the `is_globlist()` function.
+>>> I think this is ready for people other than me to have a play.  It is not well enough tested to commit just yet.
+>>> -- [[Will]]
+
 ----
 
 diff --git a/IkiWiki.pm b/IkiWiki.pm
-index e476521..07b71d7 100644
+index e476521..532aaf5 100644
 --- a/IkiWiki.pm
 +++ b/IkiWiki.pm
-@@ -1524,7 +1524,7 @@ sub globlist_to_pagespec ($) { #{{{
+@@ -1524,7 +1524,16 @@ sub globlist_to_pagespec ($) { #{{{
  
  sub is_globlist ($) { #{{{
  	my $s=shift;
 -	return ( $s =~ /[^\s]+\s+([^\s]+)/ && $1 ne "and" && $1 ne "or" );
-+	return 0; #( $s =~ /[^\s]+\s+([^\s]+)/ && $1 ne "and" && $1 ne "or" );
++	return ! ($s =~ /
++			(^\s*
++				[^\s\(]+		# single item
++					(\(			# possibly with parens after it
++						([^\)]*	# with stuff inside those parens
++						(\([^\)]*\))*)*	# maybe even nested parens
++					\))?\s*$
++			) |
++				(\s and \s) | (\s or \s)	# or we find 'and' or 'or' somewhere
++			/x);
  } #}}}
  
  sub safequote ($) { #{{{
-@@ -1605,7 +1605,7 @@ sub pagespec_merge ($$) { #{{{
+@@ -1605,7 +1614,7 @@ sub pagespec_merge ($$) { #{{{
  	return "($a) or ($b)";
  } #}}}
  
@@ -166,7 +180,7 @@ index e476521..07b71d7 100644
  	my $spec=shift;
  
  	# Support for old-style GlobLists.
-@@ -1624,9 +1624,11 @@ sub pagespec_translate ($) { #{{{
+@@ -1624,9 +1633,11 @@ sub pagespec_translate ($) { #{{{
  		|
  			\)		# )
  		|
@@ -180,21 +194,21 @@ index e476521..07b71d7 100644
  		)
  		\s*		# ignore whitespace
  	}igx) {
-@@ -1640,16 +1642,23 @@ sub pagespec_translate ($) { #{{{
+@@ -1640,16 +1651,23 @@ sub pagespec_translate ($) { #{{{
  		elsif ($word eq "(" || $word eq ")" || $word eq "!") {
  			$code.=' '.$word;
  		}
 +		elsif ($word =~ /^define\(\s*~(\w+)\s*,(.*)\)$/) {
 +			$code .= " (\$specFuncsRef->{$1}=";
-+			#$code .= "memoize(";
-+			$code .= pagespec_makeperl($2);
-+			#$code .= ")";
++			$code .= "memoize(";
++			$code .= &pagespec_makeperl($2);
++			$code .= ")";
 +			$code .= ") ";
 +		}
  		elsif ($word =~ /^(\w+)\((.*)\)$/) {
  			if (exists $IkiWiki::PageSpec::{"match_$1"}) {
 -				$code.="IkiWiki::PageSpec::match_$1(\$page, ".safequote($2).", \@_)";
-+				$code.="IkiWiki::PageSpec::match_$1(\$page, \$specFuncsRef, ".safequote($2).", \@_)";
++				$code.="IkiWiki::PageSpec::match_$1(\$specFuncsRef, \$page, ".safequote($2).", \@_)";
  			}
  			else {
  				$code.=' 0';
@@ -202,23 +216,21 @@ index e476521..07b71d7 100644
  		}
  		else {
 -			$code.=" IkiWiki::PageSpec::match_glob(\$page, ".safequote($word).", \@_)";
-+			$code.=" IkiWiki::PageSpec::match_glob(\$page, \$specFuncsRef, ".safequote($word).", \@_)";
++			$code.=" IkiWiki::PageSpec::match_glob(\$specFuncsRef, \$page, ".safequote($word).", \@_)";
  		}
  	}
  
-@@ -1657,8 +1666,18 @@ sub pagespec_translate ($) { #{{{
+@@ -1657,8 +1675,16 @@ sub pagespec_translate ($) { #{{{
  		$code=0;
  	}
  
-+	return 'sub { my $page=shift; my $specFuncsRef=shift; '.$code.' }';
++	return 'sub { my $specFuncsRef=shift; my $page=shift; '.$code.' }';
 +} #}}}
 +
 +sub pagespec_translate ($) { #{{{
 +	my $spec=shift;
 +
 +	my $code = pagespec_makeperl($spec);
-+
-+	print "Spec '$spec' led to perl '$code'\n";
 +
  	no warnings;
 -	return eval 'sub { my $page=shift; '.$code.' }';
@@ -226,23 +238,23 @@ index e476521..07b71d7 100644
  } #}}}
  
  sub pagespec_match ($$;@) { #{{{
-@@ -1673,7 +1692,7 @@ sub pagespec_match ($$;@) { #{{{
+@@ -1673,7 +1699,7 @@ sub pagespec_match ($$;@) { #{{{
  
  	my $sub=pagespec_translate($spec);
  	return IkiWiki::FailReason->new("syntax error in pagespec \"$spec\"") if $@;
 -	return $sub->($page, @params);
-+	return $sub->($page, {}, @params);
++	return $sub->({}, $page, @params);
  } #}}}
  
  sub pagespec_valid ($) { #{{{
-@@ -1722,13 +1741,77 @@ sub new { #{{{
+@@ -1722,11 +1748,71 @@ sub new { #{{{
  
  package IkiWiki::PageSpec;
  
 -sub match_glob ($$;@) { #{{{
 +sub check_named_spec($$$;@) {
-+	my $page=shift;
 +	my $specFuncsRef=shift;
++	my $page=shift;
 +	my $specName=shift;
 +	my %params=@_;
 +	
@@ -250,24 +262,23 @@ index e476521..07b71d7 100644
 +		unless (substr($specName, 0, 1) eq '~');
 +	
 +	$specName = substr($specName, 1);
-+	print "Checking pagespec named $specName against page $page\n";
++
 +	if (exists $specFuncsRef->{$specName}) {
 +		# remove the named spec from the spec refs
 +		# when we recurse to avoid infinite recursion
 +		my $sub = $specFuncsRef->{$specName};
 +		$specFuncsRef->{$specName} = undef;
-+		my $result = $sub->($page, $specFuncsRef, %params);
++		my $result = $sub->($specFuncsRef, $page, %params);
 +		$specFuncsRef->{$specName} = $sub;
 +		return $result;
 +	} else {
-+		print "Couldn't find pagespec\n";
-+		return IkiWiki::FailReason->new("Page spec $specName does not exist");
++		return IkiWiki::FailReason->new("Page spec '$specName' does not exist");
 +	}
 +}
 +
 +sub check_named_spec_existential($$$$;@) {
-+	my $page=shift;
 +	my $specFuncsRef=shift;
++	my $page=shift;
 +	my $specName=shift;
 +	my $funcref=shift;
 +	my %params=@_;
@@ -276,8 +287,6 @@ index e476521..07b71d7 100644
 +		unless (substr($specName, 0, 1) eq '~');
 +	$specName = substr($specName, 1);
 +	
-+	print "Checking (existential) pagespec named $specName against page $page\n";
-+	
 +	if (exists $specFuncsRef->{$specName}) {
 +		# remove the named spec from the spec refs
 +		# when we recurse to avoid infinite recursion
@@ -285,150 +294,136 @@ index e476521..07b71d7 100644
 +		$specFuncsRef->{$specName} = undef;
 +		
 +		foreach my $nextpage (keys %IkiWiki::pagesources) {
-+			print "Checking $nextpage against $specName\n";
-+			if ($sub->($nextpage, $specFuncsRef, %params)) {
-+				print "Match!  Checking spec $nextpage against function from original page $page\n";
-+				my $tempResult = $funcref->($page, $specFuncsRef, $nextpage, %params);
++			if ($sub->($specFuncsRef, $nextpage, %params)) {
++				my $tempResult = $funcref->($specFuncsRef, $page, $nextpage, %params);
 +				return $tempResult if ($tempResult);
 +			}
 +		}
 +		
 +		$specFuncsRef->{$specName} = $sub;
-+		return IkiWiki::FailReason->new("No page in spec $specName was successfully matched");
++		return IkiWiki::FailReason->new("No page in spec '$specName' was successfully matched");
 +	} else {
-+		print "Couldn't find pagespec\n";
-+		return IkiWiki::FailReason->new("Page spec $specName does not exist");
++		return IkiWiki::FailReason->new("Named page spec '$specName' does not exist");
 +	}
 +}
 +
 +sub match_glob ($$$;@) { #{{{
- 	my $page=shift;
 +	my $specFuncsRef=shift;
+ 	my $page=shift;
  	my $glob=shift;
  	my %params=@_;
  	
- 	my $from=exists $params{location} ? $params{location} : '';
- 	
-+	print "Matching glob $glob \n";
-+	
- 	# relative matching
- 	if ($glob =~ m!^\./!) {
- 		$from=~s#/?[^/]+$##;
-@@ -1736,6 +1819,10 @@ sub match_glob ($$;@) { #{{{
- 		$glob="$from/$glob" if length $from;
- 	}
- 
 +	if (substr($glob, 0, 1) eq '~') {
-+		return check_named_spec($page, $specFuncsRef, $glob);
++		return check_named_spec($specFuncsRef, $page, $glob);
 +	}
 +
- 	my $regexp=IkiWiki::glob2re($glob);
- 	if ($page=~/^$regexp$/i) {
- 		if (! IkiWiki::isinternal($page) || $params{internal}) {
-@@ -1750,17 +1837,29 @@ sub match_glob ($$;@) { #{{{
+ 	my $from=exists $params{location} ? $params{location} : '';
+ 	
+ 	# relative matching
+@@ -1750,17 +1836,23 @@ sub match_glob ($$;@) { #{{{
  	}
  } #}}}
  
 -sub match_internal ($$;@) { #{{{
 -	return match_glob($_[0], $_[1], @_, internal => 1)
 +sub match_internal ($$$;@) { #{{{
-+	my $page=shift;
-+	my $specFuncsRef=shift;
-+	my $glob=shift;
-+
-+	return match_glob($page, $specFuncsRef, $glob, @_, internal => 1)
++	return match_glob(shift, shift, shift, @_, internal => 1)
  } #}}}
  
 -sub match_link ($$;@) { #{{{
 +sub match_link ($$$;@) { #{{{
++	my $specFuncsRef=shift;
  	my $page=shift;
 -	my $link=lc(shift);
-+	my $specFuncsRef=shift;
 +	my $fulllink=shift;
 +	my $link=lc($fulllink);
  	my %params=@_;
  
-+	print "Matching link $fulllink \n";
-+	
- 	my $from=exists $params{location} ? $params{location} : '';
- 
+-	my $from=exists $params{location} ? $params{location} : '';
 +	if (substr($fulllink, 0, 1) eq '~') {
-+		return check_named_spec_existential($page, $specFuncsRef, $fulllink, \&match_link);
++		return check_named_spec_existential($specFuncsRef, $page, $fulllink, \&match_link);
 +	}
-+
+ 
++	my $from=exists $params{location} ? $params{location} : '';
++	
  	# relative matching
  	if ($link =~ m!^\.! && defined $from) {
  		$from=~s#/?[^/]+$##;
-@@ -1784,12 +1883,16 @@ sub match_link ($$;@) { #{{{
+@@ -1778,17 +1870,21 @@ sub match_link ($$;@) { #{{{
+ 		}
+ 		else {
+ 			return IkiWiki::SuccessReason->new("$page links to page $p matching $link")
+-				if match_glob($p, $link, %params);
++				if match_glob($specFuncsRef, $p, $link, %params);
+ 		}
+ 	}
  	return IkiWiki::FailReason->new("$page does not link to $link");
  } #}}}
  
 -sub match_backlink ($$;@) { #{{{
 -	return match_link($_[1], $_[0], @_);
 +sub match_backlink ($$$;@) { #{{{
-+	my $page=shift;
 +	my $specFuncsRef=shift;
++	my $page=shift;
 +	my $backlink=shift;
-+	return match_link($backlink, $specFuncsRef, $page, @_);
++	return match_link($specFuncsRef, $backlink, $page, @_);
  } #}}}
  
 -sub match_created_before ($$;@) { #{{{
 +sub match_created_before ($$$;@) { #{{{
- 	my $page=shift;
 +	my $specFuncsRef=shift;
+ 	my $page=shift;
  	my $testpage=shift;
  
- 	if (exists $IkiWiki::pagectime{$testpage}) {
-@@ -1805,8 +1908,9 @@ sub match_created_before ($$;@) { #{{{
+@@ -1805,7 +1901,8 @@ sub match_created_before ($$;@) { #{{{
  	}
  } #}}}
  
 -sub match_created_after ($$;@) { #{{{
 +sub match_created_after ($$$;@) { #{{{
- 	my $page=shift;
 +	my $specFuncsRef=shift;
+ 	my $page=shift;
  	my $testpage=shift;
  
- 	if (exists $IkiWiki::pagectime{$testpage}) {
-@@ -1822,8 +1926,12 @@ sub match_created_after ($$;@) { #{{{
+@@ -1822,8 +1919,12 @@ sub match_created_after ($$;@) { #{{{
  	}
  } #}}}
  
 -sub match_creation_day ($$;@) { #{{{
 -	if ((gmtime($IkiWiki::pagectime{shift()}))[3] == shift) {
 +sub match_creation_day ($$$;@) { #{{{
-+	my $page=shift;
 +	shift;
++	my $page=shift;
 +	my $time=shift;
 +
 +	if ((gmtime($IkiWiki::pagectime{$page}))[3] == $time) {
  		return IkiWiki::SuccessReason->new('creation_day matched');
  	}
  	else {
-@@ -1831,8 +1939,12 @@ sub match_creation_day ($$;@) { #{{{
+@@ -1831,8 +1932,12 @@ sub match_creation_day ($$;@) { #{{{
  	}
  } #}}}
  
 -sub match_creation_month ($$;@) { #{{{
 -	if ((gmtime($IkiWiki::pagectime{shift()}))[4] + 1 == shift) {
 +sub match_creation_month ($$$;@) { #{{{
-+	my $page=shift;
 +	shift;
++	my $page=shift;
 +	my $time=shift;
 +
 +	if ((gmtime($IkiWiki::pagectime{$page}))[4] + 1 == $time) {
  		return IkiWiki::SuccessReason->new('creation_month matched');
  	}
  	else {
-@@ -1840,8 +1952,12 @@ sub match_creation_month ($$;@) { #{{{
+@@ -1840,8 +1945,12 @@ sub match_creation_month ($$;@) { #{{{
  	}
  } #}}}
  
 -sub match_creation_year ($$;@) { #{{{
 -	if ((gmtime($IkiWiki::pagectime{shift()}))[5] + 1900 == shift) {
 +sub match_creation_year ($$$;@) { #{{{
-+	my $page=shift;
 +	shift;
++	my $page=shift;
 +	my $time=shift;
 +
 +	if ((gmtime($IkiWiki::pagectime{$page}))[5] + 1900 == $time) {
@@ -460,7 +455,7 @@ index f1f792a..a410e48 100644
  	my $ip=shift;
  	my %params=@_;
 diff --git a/IkiWiki/Plugin/conditional.pm b/IkiWiki/Plugin/conditional.pm
-index 7716fce..2110ca0 100644
+index 7716fce..c0dbb50 100644
 --- a/IkiWiki/Plugin/conditional.pm
 +++ b/IkiWiki/Plugin/conditional.pm
 @@ -70,7 +70,8 @@ sub preprocess_if (@) { #{{{
@@ -479,14 +474,14 @@ index 7716fce..2110ca0 100644
  
 -sub match_sourcepage ($$;@) { #{{{
 +sub match_sourcepage ($$$;@) { #{{{
- 	shift;
 +	my $specFuncsRef=shift;
+ 	shift;
  	my $glob=shift;
  	my %params=@_;
  
  	return IkiWiki::FailReason->new("cannot match sourcepage") unless exists $params{sourcepage};
 -	if (match_glob($params{sourcepage}, $glob, @_)) {
-+	if (match_glob($params{sourcepage}, $specFuncsRef, $glob, @_)) {
++	if (match_glob($specFuncsRef, $params{sourcepage}, $glob, @_)) {
  		return IkiWiki::SuccessReason->new("sourcepage matches $glob");
  	}
  	else {
@@ -496,14 +491,14 @@ index 7716fce..2110ca0 100644
  
 -sub match_destpage ($$;@) { #{{{
 +sub match_destpage ($$$;@) { #{{{
- 	shift;
 +	my $specFuncsRef=shift;
+ 	shift;
  	my $glob=shift;
  	my %params=@_;
  	
  	return IkiWiki::FailReason->new("cannot match destpage") unless exists $params{destpage};
 -	if (match_glob($params{destpage}, $glob, @_)) {
-+	if (match_glob($params{destpage}, $specFuncsRef, $glob, @_)) {
++	if (match_glob($specFuncsRef, $params{destpage}, $glob, @_)) {
  		return IkiWiki::SuccessReason->new("destpage matches $glob");
  	}
  	else {
@@ -518,53 +513,49 @@ index 7716fce..2110ca0 100644
  	shift;
  	my %params=@_;
 diff --git a/IkiWiki/Plugin/filecheck.pm b/IkiWiki/Plugin/filecheck.pm
-index 6f71be3..bf472c5 100644
+index 6f71be3..3592342 100644
 --- a/IkiWiki/Plugin/filecheck.pm
 +++ b/IkiWiki/Plugin/filecheck.pm
-@@ -66,8 +66,9 @@ sub humansize ($) { #{{{
+@@ -66,7 +66,8 @@ sub humansize ($) { #{{{
  
  package IkiWiki::PageSpec;
  
 -sub match_maxsize ($$;@) { #{{{
 +sub match_maxsize ($$$;@) { #{{{
- 	my $page=shift;
 +	shift;
+ 	my $page=shift;
  	my $maxsize=eval{IkiWiki::Plugin::attachment::parsesize(shift)};
  	if ($@) {
- 		return IkiWiki::FailReason->new("unable to parse maxsize (or number too large)");
-@@ -87,8 +88,9 @@ sub match_maxsize ($$;@) { #{{{
+@@ -87,7 +88,8 @@ sub match_maxsize ($$;@) { #{{{
  	}
  } #}}}
  
 -sub match_minsize ($$;@) { #{{{
 +sub match_minsize ($$$;@) { #{{{
- 	my $page=shift;
 +	shift;
+ 	my $page=shift;
  	my $minsize=eval{IkiWiki::Plugin::attachment::parsesize(shift)};
  	if ($@) {
- 		return IkiWiki::FailReason->new("unable to parse minsize (or number too large)");
-@@ -108,8 +110,9 @@ sub match_minsize ($$;@) { #{{{
+@@ -108,7 +110,8 @@ sub match_minsize ($$;@) { #{{{
  	}
  } #}}}
  
 -sub match_mimetype ($$;@) { #{{{
 +sub match_mimetype ($$$;@) { #{{{
- 	my $page=shift;
 +	shift;
+ 	my $page=shift;
  	my $wanted=shift;
  
- 	my %params=@_;
-@@ -138,8 +141,9 @@ sub match_mimetype ($$;@) { #{{{
+@@ -138,7 +141,8 @@ sub match_mimetype ($$;@) { #{{{
  	}
  } #}}}
  
 -sub match_virusfree ($$;@) { #{{{
 +sub match_virusfree ($$$;@) { #{{{
- 	my $page=shift;
 +	shift;
+ 	my $page=shift;
  	my $wanted=shift;
  
- 	my %params=@_;
 @@ -180,7 +184,7 @@ sub match_virusfree ($$;@) { #{{{
  	}
  } #}}}
@@ -575,17 +566,17 @@ index 6f71be3..bf472c5 100644
  
  	if (defined IkiWiki::pagetype($filename)) {
 diff --git a/IkiWiki/Plugin/meta.pm b/IkiWiki/Plugin/meta.pm
-index b2c85c8..1ee6a69 100644
+index b2c85c8..788f248 100644
 --- a/IkiWiki/Plugin/meta.pm
 +++ b/IkiWiki/Plugin/meta.pm
-@@ -264,6 +264,7 @@ sub pagetemplate (@) { #{{{
+@@ -263,6 +263,7 @@ sub pagetemplate (@) { #{{{
+ 
  sub match { #{{{
  	my $field=shift;
- 	my $page=shift;
 +	shift;
+ 	my $page=shift;
  	
  	# turn glob into a safe regexp
- 	my $re=IkiWiki::glob2re(shift);
 @@ -291,23 +292,23 @@ sub match { #{{{
  
  package IkiWiki::PageSpec;