responses

[git.ikiwiki.info.git] / IkiWiki.pm

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 6b74bf08acbcba30d3c1c12c303e42d702ecc5fd..720afdecd0faabf496f8e93797be1174b010c91c 100644 (file)
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -11,12 +11,13 @@ use open qw{:utf8 :std};
 
 use vars qw{%config %links %oldlinks %pagemtime %pagectime %pagecase
             %renderedfiles %oldrenderedfiles %pagesources %destsources
 
 use vars qw{%config %links %oldlinks %pagemtime %pagectime %pagecase
             %renderedfiles %oldrenderedfiles %pagesources %destsources

-           %depends %hooks %forcerebuild $gettext_obj};
+            %depends %hooks %forcerebuild $gettext_obj};

 
 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 gettext urlto targetpage
 
 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 gettext urlto targetpage

+                add_underlay

                  %config %links %renderedfiles %pagesources %destsources);
 our $VERSION = 2.00; # plugin interface version, next is ikiwiki version
 our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
                  %config %links %renderedfiles %pagesources %destsources);
 our $VERSION = 2.00; # plugin interface version, next is ikiwiki version
 our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE


@@ -29,24 +30,26 @@ memoize("pagespec_translate");
 memoize("file_pruned");
 
 sub defaultconfig () { #{{{
 memoize("file_pruned");
 
 sub defaultconfig () { #{{{

+       return

        wiki_file_prune_regexps => [qr/\.\./, qr/^\./, qr/\/\./,
                qr/\.x?html?$/, qr/\.ikiwiki-new$/,
                qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//,
        wiki_file_prune_regexps => [qr/\.\./, qr/^\./, qr/\/\./,
                qr/\.x?html?$/, qr/\.ikiwiki-new$/,
                qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//,

+               qr/(^|\/)_MTN\//,

                qr/\.dpkg-tmp$/],
        wiki_link_regexp => qr{
                qr/\.dpkg-tmp$/],
        wiki_link_regexp => qr{

-               \[\[                    # beginning of link
+               \[\[                    # beginning of link

                (?:
                (?:

-                       ([^\]\|]+)      # 1: link text
-                       \|              # followed by '|'
-               )?                      # optional
-
-               ([^\s\]#]+)             # 2: page to link to
+                       ([^\]\|\n]+)    # 1: link text
+                       \|              # followed by '|'
+               )?                      # optional
+               
+               ([^\s\]#]+)             # 2: page to link to

                (?:
                (?:

-                       \#              # '#', beginning of anchor
-                       ([^\s\]]+)      # 3: anchor text
-               )?                      # optional
-
-               \]\]                    # end of link
+                       \#              # '#', 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+)):?(.*)/,
        }x,
        wiki_file_regexp => qr/(^[-[:alnum:]_.:\/+]+$)/,
        web_commit_regexp => qr/^web commit (by (.*?(?=: |$))|from (\d+\.\d+\.\d+\.\d+)):?(.*)/,


@@ -81,6 +84,7 @@ sub defaultconfig () { #{{{
        pingurl => [],
        templatedir => "$installdir/share/ikiwiki/templates",
        underlaydir => "$installdir/share/ikiwiki/basewiki",
        pingurl => [],
        templatedir => "$installdir/share/ikiwiki/templates",
        underlaydir => "$installdir/share/ikiwiki/basewiki",

+       underlaydirs => [],

        setup => undef,
        adminuser => undef,
        adminemail => undef,
        setup => undef,
        adminuser => undef,
        adminemail => undef,


@@ -96,7 +100,7 @@ sub defaultconfig () { #{{{
        numbacklinks => 10,
        account_creation_password => "",
 } #}}}
        numbacklinks => 10,
        account_creation_password => "",
 } #}}}

-   
+

 sub checkconfig () { #{{{
        # locale stuff; avoid LC_ALL since it overrides everything
        if (defined $ENV{LC_ALL}) {
 sub checkconfig () { #{{{
        # locale stuff; avoid LC_ALL since it overrides everything
        if (defined $ENV{LC_ALL}) {


@@ -138,11 +142,13 @@ sub checkconfig () { #{{{
        }
 
        run_hooks(checkconfig => sub { shift->() });
        }
 
        run_hooks(checkconfig => sub { shift->() });

+
+       return 1;

 } #}}}
 
 sub loadplugins () { #{{{
        if (defined $config{libdir}) {
 } #}}}
 
 sub loadplugins () { #{{{
        if (defined $config{libdir}) {

-               unshift @INC, $config{libdir};
+               unshift @INC, possibly_foolish_untaint($config{libdir});

        }
 
        loadplugin($_) foreach @{$config{plugin}};
        }
 
        loadplugin($_) foreach @{$config{plugin}};


@@ -153,6 +159,8 @@ sub loadplugins () { #{{{
                        foreach grep /^-/, @ARGV;
                usage();
        }
                        foreach grep /^-/, @ARGV;
                usage();
        }

+
+       return 1;

 } #}}}
 
 sub loadplugin ($) { #{{{
 } #}}}
 
 sub loadplugin ($) { #{{{


@@ -160,7 +168,8 @@ sub loadplugin ($) { #{{{
 
        return if grep { $_ eq $plugin} @{$config{disable_plugins}};
 
 
        return if grep { $_ eq $plugin} @{$config{disable_plugins}};
 

-       foreach my $dir ($config{libdir}, "$installdir/lib/ikiwiki") {
+       foreach my $dir (defined $config{libdir} ? possibly_foolish_untaint($config{libdir}) : undef,
+                        "$installdir/lib/ikiwiki") {

                if (defined $dir && -x "$dir/plugins/$plugin") {
                        require IkiWiki::Plugin::external;
                        import IkiWiki::Plugin::external "$dir/plugins/$plugin";
                if (defined $dir && -x "$dir/plugins/$plugin") {
                        require IkiWiki::Plugin::external;
                        import IkiWiki::Plugin::external "$dir/plugins/$plugin";


@@ -193,7 +202,7 @@ sub error ($;$) { #{{{
 
 sub debug ($) { #{{{
        return unless $config{verbose};
 
 sub debug ($) { #{{{
        return unless $config{verbose};

-       log_message(debug => @_);
+       return log_message(debug => @_);

 } #}}}
 
 my $log_open=0;
 } #}}}
 
 my $log_open=0;


@@ -202,20 +211,20 @@ sub log_message ($$) { #{{{
 
        if ($config{syslog}) {
                require Sys::Syslog;
 
        if ($config{syslog}) {
                require Sys::Syslog;

-               unless ($log_open) {
+               if (! $log_open) {

                        Sys::Syslog::setlogsock('unix');
                        Sys::Syslog::openlog('ikiwiki', '', 'user');
                        $log_open=1;
                }
                        Sys::Syslog::setlogsock('unix');
                        Sys::Syslog::openlog('ikiwiki', '', 'user');
                        $log_open=1;
                }

-               eval {
+               return eval {

                        Sys::Syslog::syslog($type, "[$config{wikiname}] %s", join(" ", @_));
                };
        }
        elsif (! $config{cgi}) {
                        Sys::Syslog::syslog($type, "[$config{wikiname}] %s", join(" ", @_));
                };
        }
        elsif (! $config{cgi}) {

-               print "@_\n";
+               return print "@_\n";

        }
        else {
        }
        else {

-               print STDERR "@_\n";
+               return print STDERR "@_\n";

        }
 } #}}}
 
        }
 } #}}}
 


@@ -245,7 +254,7 @@ sub pagetype ($) { #{{{
        if ($page =~ /\.([^.]+)$/) {
                return $1 if exists $hooks{htmlize}{$1};
        }
        if ($page =~ /\.([^.]+)$/) {
                return $1 if exists $hooks{htmlize}{$1};
        }

-       return undef;
+       return;

 } #}}}
 
 sub pagename ($) { #{{{
 } #}}}
 
 sub pagename ($) { #{{{


@@ -278,8 +287,24 @@ sub srcfile ($) { #{{{
        my $file=shift;
 
        return "$config{srcdir}/$file" if -e "$config{srcdir}/$file";
        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 in $config{srcdir} or $config{underlaydir}");
+       foreach my $dir (@{$config{underlaydirs}}, $config{underlaydir}) {
+               return "$dir/$file" if -e "$dir/$file";
+       }
+       error("internal error: $file cannot be found in $config{srcdir} or underlay");
+       return;
+} #}}}
+
+sub add_underlay ($) { #{{{
+       my $dir=shift;
+
+       if ($dir=~/^\//) {
+               unshift @{$config{underlaydirs}}, $dir;
+       }
+       else {
+               unshift @{$config{underlaydirs}}, "$config{underlaydir}/../$dir";
+       }
+
+       return 1;

 } #}}}
 
 sub readfile ($;$$) { #{{{
 } #}}}
 
 sub readfile ($;$$) { #{{{


@@ -292,7 +317,7 @@ sub readfile ($;$$) { #{{{
        }
        
        local $/=undef;
        }
        
        local $/=undef;

-       open (my $in, $file) || error("failed to read $file: $!");
+       open (my $in, "<", $file) || error("failed to read $file: $!");

        binmode($in) if ($binary);
        return \*$in if $wantfd;
        my $ret=<$in>;
        binmode($in) if ($binary);
        return \*$in if $wantfd;
        my $ret=<$in>;


@@ -342,6 +367,8 @@ sub writefile ($$$;$$) { #{{{
        close $out || error("failed saving $newfile: $!", $cleanup);
        rename($newfile, "$destdir/$file") || 
                error("failed renaming $newfile to $destdir/$file: $!", $cleanup);
        close $out || error("failed saving $newfile: $!", $cleanup);
        rename($newfile, "$destdir/$file") || 
                error("failed renaming $newfile to $destdir/$file: $!", $cleanup);

+
+       return 1;

 } #}}}
 
 my %cleared;
 } #}}}
 
 my %cleared;


@@ -367,6 +394,8 @@ sub will_render ($$;$) { #{{{
                $cleared{$page}=1;
        }
        $destsources{$dest}=$page;
                $cleared{$page}=1;
        }
        $destsources{$dest}=$page;

+
+       return 1;

 } #}}}
 
 sub bestlink ($$) { #{{{
 } #}}}
 
 sub bestlink ($$) { #{{{


@@ -409,7 +438,7 @@ sub bestlink ($$) { #{{{
 sub isinlinableimage ($) { #{{{
        my $file=shift;
        
 sub isinlinableimage ($) { #{{{
        my $file=shift;
        

-       $file=~/\.(png|gif|jpg|jpeg)$/i;
+       return $file =~ /\.(png|gif|jpg|jpeg)$/i;

 } #}}}
 
 sub pagetitle ($;$) { #{{{
 } #}}}
 
 sub pagetitle ($;$) { #{{{


@@ -732,6 +761,8 @@ sub indexlink () { #{{{
        return "<a href=\"$config{url}\">$config{wikiname}</a>";
 } #}}}
 
        return "<a href=\"$config{url}\">$config{wikiname}</a>";
 } #}}}
 

+my $wikilock;
+

 sub lockwiki (;$) { #{{{
        my $wait=@_ ? shift : 1;
        # Take an exclusive lock on the wiki to prevent multiple concurrent
 sub lockwiki (;$) { #{{{
        my $wait=@_ ? shift : 1;
        # Take an exclusive lock on the wiki to prevent multiple concurrent


@@ -739,15 +770,15 @@ sub lockwiki (;$) { #{{{
        if (! -d $config{wikistatedir}) {
                mkdir($config{wikistatedir});
        }
        if (! -d $config{wikistatedir}) {
                mkdir($config{wikistatedir});
        }

-       open(WIKILOCK, ">$config{wikistatedir}/lockfile") ||
+       open($wikilock, '>', "$config{wikistatedir}/lockfile") ||

                error ("cannot write to $config{wikistatedir}/lockfile: $!");
                error ("cannot write to $config{wikistatedir}/lockfile: $!");

-       if (! flock(WIKILOCK, 2 | 4)) { # LOCK_EX | LOCK_NB
+       if (! flock($wikilock, 2 | 4)) { # LOCK_EX | LOCK_NB

                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) {
                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);
+                               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?)");
                                sleep 1;
                        }
                        error("wiki is locked; waited $wait seconds without lock being freed (possible stuck process or stale lock?)");


@@ -760,34 +791,39 @@ sub lockwiki (;$) { #{{{
 } #}}}
 
 sub unlockwiki () { #{{{
 } #}}}
 
 sub unlockwiki () { #{{{

-       close WIKILOCK;
+       return close($wikilock) if $wikilock;
+       return;

 } #}}}
 
 } #}}}
 

+my $commitlock;
+

 sub commit_hook_enabled () { #{{{
 sub commit_hook_enabled () { #{{{

-       open(COMMITLOCK, "+>$config{wikistatedir}/commitlock") ||
-               error ("cannot write to $config{wikistatedir}/commitlock: $!");
-       if (! flock(COMMITLOCK, 1 | 4)) { # LOCK_SH | LOCK_NB to test
-               close COMMITLOCK;
+       open($commitlock, '+>', "$config{wikistatedir}/commitlock") ||
+               error("cannot write to $config{wikistatedir}/commitlock: $!");
+       if (! flock($commitlock, 1 | 4)) { # LOCK_SH | LOCK_NB to test
+               close($commitlock) || error("failed closing commitlock: $!");

                return 0;
        }
                return 0;
        }

-       close COMMITLOCK;
+       close($commitlock) || error("failed closing commitlock: $!");

        return 1;
 } #}}}
 
 sub disable_commit_hook () { #{{{
        return 1;
 } #}}}
 
 sub disable_commit_hook () { #{{{

-       open(COMMITLOCK, ">$config{wikistatedir}/commitlock") ||
-               error ("cannot write to $config{wikistatedir}/commitlock: $!");
-       if (! flock(COMMITLOCK, 2)) { # LOCK_EX
+       open($commitlock, '>', "$config{wikistatedir}/commitlock") ||
+               error("cannot write to $config{wikistatedir}/commitlock: $!");
+       if (! flock($commitlock, 2)) { # LOCK_EX

                error("failed to get commit lock");
        }
                error("failed to get commit lock");
        }

+       return 1;

 } #}}}
 
 sub enable_commit_hook () { #{{{
 } #}}}
 
 sub enable_commit_hook () { #{{{

-       close COMMITLOCK;
+       return close($commitlock) if $commitlock;
+       return;

 } #}}}
 
 sub loadindex () { #{{{
 } #}}}
 
 sub loadindex () { #{{{

-       open (my $in, "$config{wikistatedir}/index") || return;
+       open (my $in, "<", "$config{wikistatedir}/index") || return;

        while (<$in>) {
                $_=possibly_foolish_untaint($_);
                chomp;
        while (<$in>) {
                $_=possibly_foolish_untaint($_);
                chomp;


@@ -815,7 +851,7 @@ sub loadindex () { #{{{
                $oldrenderedfiles{$page}=[@{$items{dest}}];
                $pagectime{$page}=$items{ctime}[0];
        }
                $oldrenderedfiles{$page}=[@{$items{dest}}];
                $pagectime{$page}=$items{ctime}[0];
        }

-       close $in;
+       return close($in);

 } #}}}
 
 sub saveindex () { #{{{
 } #}}}
 
 sub saveindex () { #{{{


@@ -843,6 +879,8 @@ sub saveindex () { #{{{
        close $out || error("failed saving to $newfile: $!", $cleanup);
        rename($newfile, "$config{wikistatedir}/index") ||
                error("failed renaming $newfile to $config{wikistatedir}/index", $cleanup);
        close $out || error("failed saving to $newfile: $!", $cleanup);
        rename($newfile, "$config{wikistatedir}/index") ||
                error("failed renaming $newfile to $config{wikistatedir}/index", $cleanup);

+       
+       return 1;

 } #}}}
 
 sub template_file ($) { #{{{
 } #}}}
 
 sub template_file ($) { #{{{


@@ -851,7 +889,7 @@ sub template_file ($) { #{{{
        foreach my $dir ($config{templatedir}, "$installdir/share/ikiwiki/templates") {
                return "$dir/$template" if -e "$dir/$template";
        }
        foreach my $dir ($config{templatedir}, "$installdir/share/ikiwiki/templates") {
                return "$dir/$template" if -e "$dir/$template";
        }

-       return undef;
+       return;

 } #}}}
 
 sub template_params (@) { #{{{
 } #}}}
 
 sub template_params (@) { #{{{


@@ -865,7 +903,7 @@ sub template_params (@) { #{{{
        my @ret=(
                filter => sub {
                        my $text_ref = shift;
        my @ret=(
                filter => sub {
                        my $text_ref = shift;

-                       $$text_ref=&Encode::decode_utf8($$text_ref);
+                       ${$text_ref} = decode_utf8(${$text_ref});

                },
                filename => $filename,
                loop_context_vars => 1,
                },
                filename => $filename,
                loop_context_vars => 1,


@@ -877,7 +915,7 @@ sub template_params (@) { #{{{
 
 sub template ($;@) { #{{{
        require HTML::Template;
 
 sub template ($;@) { #{{{
        require HTML::Template;

-       HTML::Template->new(template_params(@_));
+       return HTML::Template->new(template_params(@_));

 } #}}}
 
 sub misctemplate ($$;@) { #{{{
 } #}}}
 
 sub misctemplate ($$;@) { #{{{


@@ -903,12 +941,13 @@ sub hook (@) { # {{{
        my %param=@_;
        
        if (! exists $param{type} || ! ref $param{call} || ! exists $param{id}) {
        my %param=@_;
        
        if (! exists $param{type} || ! ref $param{call} || ! exists $param{id}) {

-               error "hook requires type, call, and id parameters";
+               error 'hook requires type, call, and id parameters';

        }
 
        return if $param{no_override} && exists $hooks{$param{type}}{$param{id}};
        
        $hooks{$param{type}}{$param{id}}=\%param;
        }
 
        return if $param{no_override} && exists $hooks{$param{type}}{$param{id}};
        
        $hooks{$param{type}}{$param{id}}=\%param;

+       return 1;

 } # }}}
 
 sub run_hooks ($$) { # {{{
 } # }}}
 
 sub run_hooks ($$) { # {{{


@@ -930,6 +969,8 @@ sub run_hooks ($$) { # {{{
                        $sub->($hooks{$type}{$id}{call});
                }
        }
                        $sub->($hooks{$type}{$id}{call});
                }
        }

+
+       return 1;

 } #}}}
 
 sub globlist_to_pagespec ($) { #{{{
 } #}}}
 
 sub globlist_to_pagespec ($) { #{{{


@@ -945,9 +986,9 @@ sub globlist_to_pagespec ($) { #{{{
                }
        }
 
                }
        }
 

-       my $spec=join(" or ", @spec);
+       my $spec=join(' or ', @spec);

        if (@skip) {
        if (@skip) {

-               my $skip=join(" and ", @skip);
+               my $skip=join(' and ', @skip);

                if (length $spec) {
                        $spec="$skip and ($spec)";
                }
                if (length $spec) {
                        $spec="$skip and ($spec)";
                }


@@ -960,7 +1001,7 @@ sub globlist_to_pagespec ($) { #{{{
 
 sub is_globlist ($) { #{{{
        my $s=shift;
 
 sub is_globlist ($) { #{{{
        my $s=shift;

-       $s=~/[^\s]+\s+([^\s]+)/ && $1 ne "and" && $1 ne "or";
+       return ( $s =~ /[^\s]+\s+([^\s]+)/ && $1 ne "and" && $1 ne "or" );

 } #}}}
 
 sub safequote ($) { #{{{
 } #}}}
 
 sub safequote ($) { #{{{


@@ -979,21 +1020,25 @@ sub add_depends ($$) { #{{{
        else {
                $depends{$page}=pagespec_merge($depends{$page}, $pagespec);
        }
        else {
                $depends{$page}=pagespec_merge($depends{$page}, $pagespec);
        }

+
+       return 1;

 } # }}}
 
 sub file_pruned ($$) { #{{{
        require File::Spec;
        my $file=File::Spec->canonpath(shift);
        my $base=File::Spec->canonpath(shift);
 } # }}}
 
 sub file_pruned ($$) { #{{{
        require File::Spec;
        my $file=File::Spec->canonpath(shift);
        my $base=File::Spec->canonpath(shift);

-       $file=~s#^\Q$base\E/*##;
+       $file =~ s#^\Q$base\E/*##;

 
        my $regexp='('.join('|', @{$config{wiki_file_prune_regexps}}).')';
 
        my $regexp='('.join('|', @{$config{wiki_file_prune_regexps}}).')';

-       $file =~ m/$regexp/;
+       return $file =~ m/$regexp/;

 } #}}}
 
 sub gettext { #{{{
        # Only use gettext in the rare cases it's needed.
 } #}}}
 
 sub gettext { #{{{
        # Only use gettext in the rare cases it's needed.

-       if (exists $ENV{LANG} || exists $ENV{LC_ALL} || exists $ENV{LC_MESSAGES}) {
+       if ((exists $ENV{LANG} && length $ENV{LANG}) ||
+           (exists $ENV{LC_ALL} && length $ENV{LC_ALL}) ||
+           (exists $ENV{LC_MESSAGES} && length $ENV{LC_MESSAGES})) {

                if (! $gettext_obj) {
                        $gettext_obj=eval q{
                                use Locale::gettext q{textdomain};
                if (! $gettext_obj) {
                        $gettext_obj=eval q{
                                use Locale::gettext q{textdomain};


@@ -1057,21 +1102,21 @@ sub pagespec_translate ($) { #{{{
                \s*             # ignore whitespace
        }igx) {
                my $word=$1;
                \s*             # ignore whitespace
        }igx) {
                my $word=$1;

-               if (lc $word eq "and") {
-                       $code.=" &&";
+               if (lc $word eq 'and') {
+                       $code.=' &&';

                }
                }

-               elsif (lc $word eq "or") {
-                       $code.=" ||";
+               elsif (lc $word eq 'or') {
+                       $code.=' ||';

                }
                elsif ($word eq "(" || $word eq ")" || $word eq "!") {
                }
                elsif ($word eq "(" || $word eq ")" || $word eq "!") {

-                       $code.=" ".$word;
+                       $code.=' '.$word;

                }
                elsif ($word =~ /^(\w+)\((.*)\)$/) {
                        if (exists $IkiWiki::PageSpec::{"match_$1"}) {
                                $code.="IkiWiki::PageSpec::match_$1(\$page, ".safequote($2).", \@params)";
                        }
                        else {
                }
                elsif ($word =~ /^(\w+)\((.*)\)$/) {
                        if (exists $IkiWiki::PageSpec::{"match_$1"}) {
                                $code.="IkiWiki::PageSpec::match_$1(\$page, ".safequote($2).", \@params)";
                        }
                        else {

-                               $code.=" 0";
+                               $code.=' 0';

                        }
                }
                else {
                        }
                }
                else {


@@ -1089,11 +1134,11 @@ sub pagespec_match ($$;@) { #{{{
 
        # Backwards compatability with old calling convention.
        if (@params == 1) {
 
        # Backwards compatability with old calling convention.
        if (@params == 1) {

-               unshift @params, "location";
+               unshift @params, 'location';

        }
 
        my $ret=eval pagespec_translate($spec);
        }
 
        my $ret=eval pagespec_translate($spec);

-       return IkiWiki::FailReason->new("syntax error") if $@;
+       return IkiWiki::FailReason->new('syntax error') if $@;

        return $ret;
 } #}}}
 
        return $ret;
 } #}}}
 


@@ -1107,7 +1152,7 @@ use overload ( #{{{
 ); #}}}
 
 sub new { #{{{
 ); #}}}
 
 sub new { #{{{

-       bless \$_[1], $_[0];
+       return bless \$_[1], $_[0];

 } #}}}
 
 package IkiWiki::SuccessReason;
 } #}}}
 
 package IkiWiki::SuccessReason;


@@ -1120,7 +1165,7 @@ use overload ( #{{{
 ); #}}}
 
 sub new { #{{{
 ); #}}}
 
 sub new { #{{{

-       bless \$_[1], $_[0];
+       return bless \$_[1], $_[0];

 }; #}}}
 
 package IkiWiki::PageSpec;
 }; #}}}
 
 package IkiWiki::PageSpec;


@@ -1130,7 +1175,7 @@ sub match_glob ($$;@) { #{{{
        my $glob=shift;
        my %params=@_;
        
        my $glob=shift;
        my %params=@_;
        

-       my $from=exists $params{location} ? $params{location} : "";
+       my $from=exists $params{location} ? $params{location} : '';

        
        # relative matching
        if ($glob =~ m!^\./!) {
        
        # relative matching
        if ($glob =~ m!^\./!) {


@@ -1157,7 +1202,7 @@ sub match_link ($$;@) { #{{{
        my $link=lc(shift);
        my %params=@_;
 
        my $link=lc(shift);
        my %params=@_;
 

-       my $from=exists $params{location} ? $params{location} : "";
+       my $from=exists $params{location} ? $params{location} : '';

 
        # relative matching
        if ($link =~ m!^\.! && defined $from) {
 
        # relative matching
        if ($link =~ m!^\.! && defined $from) {


@@ -1166,10 +1211,10 @@ sub match_link ($$;@) { #{{{
                $link="$from/$link" if length $from;
        }
 
                $link="$from/$link" if length $from;
        }
 

-       my $links = $IkiWiki::links{$page} or return undef;
-       return IkiWiki::FailReason->new("$page has no links") unless @$links;
+       my $links = $IkiWiki::links{$page};
+       return IkiWiki::FailReason->new("$page has no links") unless $links && @{$links};

        my $bestlink = IkiWiki::bestlink($from, $link);
        my $bestlink = IkiWiki::bestlink($from, $link);

-       foreach my $p (@$links) {
+       foreach my $p (@{$links}) {

                if (length $bestlink) {
                        return IkiWiki::SuccessReason->new("$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);


@@ -1183,7 +1228,7 @@ sub match_link ($$;@) { #{{{
 } #}}}
 
 sub match_backlink ($$;@) { #{{{
 } #}}}
 
 sub match_backlink ($$;@) { #{{{

-       match_link($_[1], $_[0], @_);
+       return match_link($_[1], $_[0], @_);

 } #}}}
 
 sub match_created_before ($$;@) { #{{{
 } #}}}
 
 sub match_created_before ($$;@) { #{{{


@@ -1192,10 +1237,10 @@ sub match_created_before ($$;@) { #{{{
 
        if (exists $IkiWiki::pagectime{$testpage}) {
                if ($IkiWiki::pagectime{$page} < $IkiWiki::pagectime{$testpage}) {
 
        if (exists $IkiWiki::pagectime{$testpage}) {
                if ($IkiWiki::pagectime{$page} < $IkiWiki::pagectime{$testpage}) {

-                       IkiWiki::SuccessReason->new("$page created before $testpage");
+                       return IkiWiki::SuccessReason->new("$page created before $testpage");

                }
                else {
                }
                else {

-                       IkiWiki::FailReason->new("$page not created before $testpage");
+                       return IkiWiki::FailReason->new("$page not created before $testpage");

                }
        }
        else {
                }
        }
        else {


@@ -1209,10 +1254,10 @@ sub match_created_after ($$;@) { #{{{
 
        if (exists $IkiWiki::pagectime{$testpage}) {
                if ($IkiWiki::pagectime{$page} > $IkiWiki::pagectime{$testpage}) {
 
        if (exists $IkiWiki::pagectime{$testpage}) {
                if ($IkiWiki::pagectime{$page} > $IkiWiki::pagectime{$testpage}) {

-                       IkiWiki::SuccessReason->new("$page created after $testpage");
+                       return IkiWiki::SuccessReason->new("$page created after $testpage");

                }
                else {
                }
                else {

-                       IkiWiki::FailReason->new("$page not created after $testpage");
+                       return IkiWiki::FailReason->new("$page not created after $testpage");

                }
        }
        else {
                }
        }
        else {


@@ -1222,28 +1267,28 @@ sub match_created_after ($$;@) { #{{{
 
 sub match_creation_day ($$;@) { #{{{
        if ((gmtime($IkiWiki::pagectime{shift()}))[3] == shift) {
 
 sub match_creation_day ($$;@) { #{{{
        if ((gmtime($IkiWiki::pagectime{shift()}))[3] == shift) {

-               return IkiWiki::SuccessReason->new("creation_day matched");
+               return IkiWiki::SuccessReason->new('creation_day matched');

        }
        else {
        }
        else {

-               return IkiWiki::FailReason->new("creation_day did not match");
+               return IkiWiki::FailReason->new('creation_day did not match');

        }
 } #}}}
 
 sub match_creation_month ($$;@) { #{{{
        if ((gmtime($IkiWiki::pagectime{shift()}))[4] + 1 == shift) {
        }
 } #}}}
 
 sub match_creation_month ($$;@) { #{{{
        if ((gmtime($IkiWiki::pagectime{shift()}))[4] + 1 == shift) {

-               return IkiWiki::SuccessReason->new("creation_month matched");
+               return IkiWiki::SuccessReason->new('creation_month matched');

        }
        else {
        }
        else {

-               return IkiWiki::FailReason->new("creation_month did not match");
+               return IkiWiki::FailReason->new('creation_month did not match');

        }
 } #}}}
 
 sub match_creation_year ($$;@) { #{{{
        if ((gmtime($IkiWiki::pagectime{shift()}))[5] + 1900 == shift) {
        }
 } #}}}
 
 sub match_creation_year ($$;@) { #{{{
        if ((gmtime($IkiWiki::pagectime{shift()}))[5] + 1900 == shift) {

-               return IkiWiki::SuccessReason->new("creation_year matched");
+               return IkiWiki::SuccessReason->new('creation_year matched');

        }
        else {
        }
        else {

-               return IkiWiki::FailReason->new("creation_year did not match");
+               return IkiWiki::FailReason->new('creation_year did not match');

        }
 } #}}}
 
        }
 } #}}}
 


@@ -1252,7 +1297,8 @@ sub match_user ($$;@) { #{{{
        my $user=shift;
        my %params=@_;
 
        my $user=shift;
        my %params=@_;
 

-       return IkiWiki::FailReason->new("cannot match user") unless exists $params{user};
+       return IkiWiki::FailReason->new('cannot match user')
+               unless exists $params{user};

        if ($user eq $params{user}) {
                return IkiWiki::SuccessReason->new("user is $user")
        }
        if ($user eq $params{user}) {
                return IkiWiki::SuccessReason->new("user is $user")
        }