fix tag

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

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 01898936f36a1702ebb8a0e3775e7bf735b67931..927d6294000f85501f641b8a2b61f8ac2fe61f4b 100644 (file)
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -7,7 +7,7 @@ use strict;
 use Encode;
 use HTML::Entities;
 use URI::Escape q{uri_escape_utf8};
 use Encode;
 use HTML::Entities;
 use URI::Escape q{uri_escape_utf8};

-use POSIX;
+use POSIX ();

 use Storable;
 use open qw{:utf8 :std};
 
 use Storable;
 use open qw{:utf8 :std};
 


@@ -17,22 +17,27 @@ use vars qw{%config %links %oldlinks %pagemtime %pagectime %pagecase
            %forcerebuild %loaded_plugins};
 
 use Exporter q{import};
            %forcerebuild %loaded_plugins};
 
 use Exporter q{import};

-our @EXPORT = qw(hook debug error template htmlpage add_depends pagespec_match
-                 pagespec_match_list bestlink htmllink readfile writefile
-                pagetype srcfile pagename displaytime will_render gettext urlto
-                targetpage add_underlay pagetitle titlepage linkpage
-                newpagefile inject add_link
+our @EXPORT = qw(hook debug error template htmlpage deptype
+                 add_depends pagespec_match pagespec_match_list bestlink
+                htmllink readfile writefile pagetype srcfile pagename
+                displaytime will_render gettext ngettext urlto targetpage
+                add_underlay pagetitle titlepage linkpage newpagefile
+                inject add_link

                  %config %links %pagestate %wikistate %renderedfiles
                  %pagesources %destsources);
 our $VERSION = 3.00; # plugin interface version, next is ikiwiki version
 our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
 our $installdir='/usr'; # INSTALLDIR_AUTOREPLACE done by Makefile, DNE
 
                  %config %links %pagestate %wikistate %renderedfiles
                  %pagesources %destsources);
 our $VERSION = 3.00; # plugin interface version, next is ikiwiki version
 our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
 our $installdir='/usr'; # INSTALLDIR_AUTOREPLACE done by Makefile, DNE
 

+# Page dependency types.
+our $DEPEND_CONTENT=1;
+our $DEPEND_PRESENCE=2;
+our $DEPEND_LINKS=4;
+

 # Optimisation.
 use Memoize;
 memoize("abs2rel");
 memoize("pagespec_translate");
 # Optimisation.
 use Memoize;
 memoize("abs2rel");
 memoize("pagespec_translate");

-memoize("file_pruned");

 memoize("template_file");
 
 sub getsetup () {
 memoize("template_file");
 
 sub getsetup () {


@@ -150,6 +155,13 @@ sub getsetup () {
                safe => 0, # path
                rebuild => 1,
        },
                safe => 0, # path
                rebuild => 1,
        },

+       templatedirs => {
+               type => "internal",
+               default => [],
+               description => "additional directories containing template files",
+               safe => 0,
+               rebuild => 0,
+       },

        underlaydir => {
                type => "string",
                default => "$installdir/share/ikiwiki/basewiki",
        underlaydir => {
                type => "string",
                default => "$installdir/share/ikiwiki/basewiki",


@@ -322,11 +334,20 @@ sub getsetup () {
                safe => 0, # paranoia
                rebuild => 0,
        },
                safe => 0, # paranoia
                rebuild => 0,
        },

+       include => {
+               type => "string",
+               default => undef,
+               example => '^\.htaccess$',
+               description => "regexp of normally excluded files to include",
+               advanced => 1,
+               safe => 0, # regexp
+               rebuild => 1,
+       },

        exclude => {
                type => "string",
                default => undef,
        exclude => {
                type => "string",
                default => undef,

-               example => '\.wav$',
-               description => "regexp of source files to ignore",
+               example => '^(*\.private|Makefile)$',
+               description => "regexp of files that should be skipped",

                advanced => 1,
                safe => 0, # regexp
                rebuild => 1,
                advanced => 1,
                safe => 0, # regexp
                rebuild => 1,


@@ -337,7 +358,7 @@ sub getsetup () {
                        qr/\.x?html?$/, qr/\.ikiwiki-new$/,
                        qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//,
                        qr/(^|\/)_MTN\//, qr/(^|\/)_darcs\//,
                        qr/\.x?html?$/, qr/\.ikiwiki-new$/,
                        qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//,
                        qr/(^|\/)_MTN\//, qr/(^|\/)_darcs\//,

-                       qr/\.dpkg-tmp$/],
+                       qr/(^|\/)CVS\//, qr/\.dpkg-tmp$/],

                description => "regexps of source files to ignore",
                safe => 0,
                rebuild => 1,
                description => "regexps of source files to ignore",
                safe => 0,
                rebuild => 1,


@@ -357,7 +378,7 @@ sub getsetup () {
        },
        web_commit_regexp => {
                type => "internal",
        },
        web_commit_regexp => {
                type => "internal",

-               default => qr/^web commit (by (.*?(?=: |$))|from (\d+\.\d+\.\d+\.\d+)):?(.*)/,
+               default => qr/^web commit (by (.*?(?=: |$))|from ([0-9a-fA-F:.]+[0-9a-fA-F])):?(.*)/,

                description => "regexp to parse web commits from logs",
                safe => 0,
                rebuild => 0,
                description => "regexp to parse web commits from logs",
                safe => 0,
                rebuild => 0,


@@ -397,6 +418,13 @@ sub getsetup () {
                safe => 0,
                rebuild => 0,
        },
                safe => 0,
                rebuild => 0,
        },

+       clean => {
+               type => "internal",
+               default => 0,
+               description => "running in clean mode",
+               safe => 0,
+               rebuild => 0,
+       },

        refresh => {
                type => "internal",
                default => 0,
        refresh => {
                type => "internal",
                default => 0,


@@ -439,6 +467,13 @@ sub getsetup () {
                safe => 0,
                rebuild => 0,
        },
                safe => 0,
                rebuild => 0,
        },

+       setuptype => {
+               type => "internal",
+               default => "Standard",
+               description => "perl class to use to dump setup file",
+               safe => 0,
+               rebuild => 0,
+       },

        allow_symlinks_before_srcdir => {
                type => "boolean",
                default => 0,
        allow_symlinks_before_srcdir => {
                type => "boolean",
                default => 0,


@@ -537,12 +572,12 @@ sub loadplugins () {
        }
        
        if ($config{rcs}) {
        }
        
        if ($config{rcs}) {

-               if (exists $IkiWiki::hooks{rcs}) {
+               if (exists $hooks{rcs}) {

                        error(gettext("cannot use multiple rcs plugins"));
                }
                loadplugin($config{rcs});
        }
                        error(gettext("cannot use multiple rcs plugins"));
                }
                loadplugin($config{rcs});
        }

-       if (! exists $IkiWiki::hooks{rcs}) {
+       if (! exists $hooks{rcs}) {

                loadplugin("norcs");
        }
 
                loadplugin("norcs");
        }
 


@@ -869,7 +904,7 @@ sub bestlink ($$) {
                $l.="/" if length $l;
                $l.=$link;
 
                $l.="/" if length $l;
                $l.=$link;
 

-               if (exists $links{$l}) {
+               if (exists $pagesources{$l}) {

                        return $l;
                }
                elsif (exists $pagecase{lc $l}) {
                        return $l;
                }
                elsif (exists $pagecase{lc $l}) {


@@ -879,7 +914,7 @@ sub bestlink ($$) {
 
        if (length $config{userdir}) {
                my $l = "$config{userdir}/".lc($link);
 
        if (length $config{userdir}) {
                my $l = "$config{userdir}/".lc($link);

-               if (exists $links{$l}) {
+               if (exists $pagesources{$l}) {

                        return $l;
                }
                elsif (exists $pagecase{lc $l}) {
                        return $l;
                }
                elsif (exists $pagecase{lc $l}) {


@@ -929,7 +964,12 @@ sub linkpage ($) {
 sub cgiurl (@) {
        my %params=@_;
 
 sub cgiurl (@) {
        my %params=@_;
 

-       return $config{cgiurl}."?".
+       my $cgiurl=$config{cgiurl};
+       if (exists $params{cgiurl}) {
+               $cgiurl=$params{cgiurl};
+               delete $params{cgiurl};
+       }
+       return $cgiurl."?".

                join("&", map $_."=".uri_escape_utf8($params{$_}), keys %params);
 }
 
                join("&", map $_."=".uri_escape_utf8($params{$_}), keys %params);
 }
 


@@ -1069,16 +1109,20 @@ sub htmllink ($$$;@) {
        }
 
        my @attrs;
        }
 
        my @attrs;

-       if (defined $opts{rel}) {
-               push @attrs, ' rel="'.$opts{rel}.'"';
-       }
-       if (defined $opts{class}) {
-               push @attrs, ' class="'.$opts{class}.'"';
+       foreach my $attr (qw{rel class title}) {
+               if (defined $opts{$attr}) {
+                       push @attrs, " $attr=\"$opts{$attr}\"";
+               }

        }
 
        return "<a href=\"$bestlink\"@attrs>$linktext</a>";
 }
 
        }
 
        return "<a href=\"$bestlink\"@attrs>$linktext</a>";
 }
 

+sub userpage ($) {
+       my $user=shift;
+       return length $config{userdir} ? "$config{userdir}/$user" : $user;
+}
+

 sub openiduser ($) {
        my $user=shift;
 
 sub openiduser ($) {
        my $user=shift;
 


@@ -1087,11 +1131,10 @@ sub openiduser ($) {
                my $display;
 
                if (Net::OpenID::VerifiedIdentity->can("DisplayOfURL")) {
                my $display;
 
                if (Net::OpenID::VerifiedIdentity->can("DisplayOfURL")) {

-                       # this works in at least 2.x

                        $display = Net::OpenID::VerifiedIdentity::DisplayOfURL($user);
                }
                else {
                        $display = Net::OpenID::VerifiedIdentity::DisplayOfURL($user);
                }
                else {

-                       # this only works in 1.x
+                       # backcompat with old version

                        my $oid=Net::OpenID::VerifiedIdentity->new(identity => $user);
                        $display=$oid->display;
                }
                        my $oid=Net::OpenID::VerifiedIdentity->new(identity => $user);
                        $display=$oid->display;
                }


@@ -1104,7 +1147,7 @@ sub openiduser ($) {
                # Convert "http://somehost.com/user" to "user [somehost.com]".
                # (also "https://somehost.com/user/")
                if ($display !~ /\[/) {
                # Convert "http://somehost.com/user" to "user [somehost.com]".
                # (also "https://somehost.com/user/")
                if ($display !~ /\[/) {

-                       $display=~s/^https?:\/\/(.+)\/([^\/]+)\/?$/$2 [$1]/;
+                       $display=~s/^https?:\/\/(.+)\/([^\/#?]+)\/?(?:[#?].*)?$/$2 [$1]/;

                }
                $display=~s!^https?://!!; # make sure this is removed
                eval q{use CGI 'escapeHTML'};
                }
                $display=~s!^https?://!!; # make sure this is removed
                eval q{use CGI 'escapeHTML'};


@@ -1114,23 +1157,6 @@ sub openiduser ($) {
        return;
 }
 
        return;
 }
 

-sub userlink ($) {
-       my $user=shift;
-
-       my $oiduser=eval { openiduser($user) };
-       if (defined $oiduser) {
-               return "<a href=\"$user\">$oiduser</a>";
-       }
-       else {
-               eval q{use CGI 'escapeHTML'};
-               error($@) if $@;
-
-               return htmllink("", "", escapeHTML(
-                       length $config{userdir} ? $config{userdir}."/".$user : $user
-               ), noimageinline => 1);
-       }
-}
-

 sub htmlize ($$$$) {
        my $page=shift;
        my $destpage=shift;
 sub htmlize ($$$$) {
        my $page=shift;
        my $destpage=shift;


@@ -1217,7 +1243,7 @@ sub preprocess ($$$;$$) {
                                (?:
                                        """(.*?)"""     # 2: triple-quoted value
                                |
                                (?:
                                        """(.*?)"""     # 2: triple-quoted value
                                |

-                                       "([^"]+)"       # 3: single-quoted value
+                                       "([^"]*?)"      # 3: single-quoted value

                                |
                                        (\S+)           # 4: unquoted value
                                )
                                |
                                        (\S+)           # 4: unquoted value
                                )


@@ -1303,7 +1329,7 @@ sub preprocess ($$$;$$) {
                                        (?:
                                                """.*?"""       # triple-quoted value
                                                |
                                        (?:
                                                """.*?"""       # triple-quoted value
                                                |

-                                               "[^"]+"         # single-quoted value
+                                               "[^"]*?"        # single-quoted value

                                                |
                                                [^"\s\]]+       # unquoted value
                                        )
                                                |
                                                [^"\s\]]+       # unquoted value
                                        )


@@ -1326,7 +1352,7 @@ sub preprocess ($$$;$$) {
                                        (?:
                                                """.*?"""       # triple-quoted value
                                                |
                                        (?:
                                                """.*?"""       # triple-quoted value
                                                |

-                                               "[^"]+"         # single-quoted value
+                                               "[^"]*?"        # single-quoted value

                                                |
                                                [^"\s\]]+       # unquoted value
                                        )
                                                |
                                                [^"\s\]]+       # unquoted value
                                        )


@@ -1396,7 +1422,7 @@ sub check_content (@) {
                my %old=map { $_ => 1 }
                        split("\n", readfile(srcfile($pagesources{$params{page}})));
                foreach my $line (split("\n", $params{content})) {
                my %old=map { $_ => 1 }
                        split("\n", readfile(srcfile($pagesources{$params{page}})));
                foreach my $line (split("\n", $params{content})) {

-                       push @diff, $line if ! exists $old{$_};
+                       push @diff, $line if ! exists $old{$line};

                }
                $params{diff}=join("\n", @diff);
        }
                }
                $params{diff}=join("\n", @diff);
        }


@@ -1517,18 +1543,28 @@ sub loadindex () {
                                $links{$page}=$d->{links};
                                $oldlinks{$page}=[@{$d->{links}}];
                        }
                                $links{$page}=$d->{links};
                                $oldlinks{$page}=[@{$d->{links}}];
                        }

-                       if (exists $d->{depends_simple}) {
+                       if (ref $d->{depends_simple} eq 'ARRAY') {
+                               # old format

                                $depends_simple{$page}={
                                        map { $_ => 1 } @{$d->{depends_simple}}
                                };
                        }
                                $depends_simple{$page}={
                                        map { $_ => 1 } @{$d->{depends_simple}}
                                };
                        }

+                       elsif (exists $d->{depends_simple}) {
+                               $depends_simple{$page}=$d->{depends_simple};
+                       }

                        if (exists $d->{dependslist}) {
                        if (exists $d->{dependslist}) {

+                               # old format

                                $depends{$page}={
                                $depends{$page}={

-                                       map { $_ => 1 } @{$d->{dependslist}}
+                                       map { $_ => $DEPEND_CONTENT }
+                                               @{$d->{dependslist}}

                                };
                        }
                                };
                        }

+                       elsif (exists $d->{depends} && ! ref $d->{depends}) {
+                               # old format
+                               $depends{$page}={$d->{depends} => $DEPEND_CONTENT };
+                       }

                        elsif (exists $d->{depends}) {
                        elsif (exists $d->{depends}) {

-                               $depends{$page}={$d->{depends} => 1};
+                               $depends{$page}=$d->{depends};

                        }
                        if (exists $d->{state}) {
                                $pagestate{$page}=$d->{state};
                        }
                        if (exists $d->{state}) {
                                $pagestate{$page}=$d->{state};


@@ -1574,11 +1610,11 @@ sub saveindex () {
                };
 
                if (exists $depends{$page}) {
                };
 
                if (exists $depends{$page}) {

-                       $index{page}{$src}{dependslist} = [ keys %{$depends{$page}} ];
+                       $index{page}{$src}{depends} = $depends{$page};

                }
 
                if (exists $depends_simple{$page}) {
                }
 
                if (exists $depends_simple{$page}) {

-                       $index{page}{$src}{depends_simple} = [ keys %{$depends_simple{$page}} ];
+                       $index{page}{$src}{depends_simple} = $depends_simple{$page};

                }
 
                if (exists $pagestate{$page}) {
                }
 
                if (exists $pagestate{$page}) {


@@ -1610,7 +1646,8 @@ sub saveindex () {
 sub template_file ($) {
        my $template=shift;
 
 sub template_file ($) {
        my $template=shift;
 

-       foreach my $dir ($config{templatedir}, "$installdir/share/ikiwiki/templates") {
+       foreach my $dir ($config{templatedir}, @{$config{templatedirs}},
+                        "$installdir/share/ikiwiki/templates") {

                return "$dir/$template" if -e "$dir/$template";
        }
        return;
                return "$dir/$template" if -e "$dir/$template";
        }
        return;


@@ -1745,57 +1782,107 @@ sub rcs_receive () {
        $hooks{rcs}{rcs_receive}{call}->();
 }
 
        $hooks{rcs}{rcs_receive}{call}->();
 }
 

-sub add_depends ($$) {
+sub add_depends ($$;$) {

        my $page=shift;
        my $pagespec=shift;
        my $page=shift;
        my $pagespec=shift;

+       my $deptype=shift || $DEPEND_CONTENT;

 
 

+       # Is the pagespec a simple page name?

        if ($pagespec =~ /$config{wiki_file_regexp}/ &&
        if ($pagespec =~ /$config{wiki_file_regexp}/ &&

-               $pagespec !~ /[\s*?()!]/) {
-               # a simple dependency, which can be matched by string eq
-               $depends_simple{$page}{lc $pagespec} = 1;
+           $pagespec !~ /[\s*?()!]/) {
+               $depends_simple{$page}{lc $pagespec} |= $deptype;

                return 1;
        }
 
                return 1;
        }
 

-       return unless pagespec_valid($pagespec);
+       # Add explicit dependencies for influences.
+       my $sub=pagespec_translate($pagespec);
+       return if $@;
+       foreach my $p (keys %pagesources) {
+               my $r=$sub->($p, location => $page);
+               my $i=$r->influences;
+               foreach my $k (keys %$i) {
+                       $depends_simple{$page}{lc $k} |= $i->{$k};
+               }
+               last if $r->influences_static;
+       }

 
 

-       $depends{$page}{$pagespec} = 1;
+       $depends{$page}{$pagespec} |= $deptype;

        return 1;
 }
 
        return 1;
 }
 

-sub file_pruned ($$) {
-       require File::Spec;
-       my $file=File::Spec->canonpath(shift);
-       my $base=File::Spec->canonpath(shift);
-       $file =~ s#^\Q$base\E/+##;
+sub deptype (@) {
+       my $deptype=0;
+       foreach my $type (@_) {
+               if ($type eq 'presence') {
+                       $deptype |= $DEPEND_PRESENCE;
+               }
+               elsif ($type eq 'links') { 
+                       $deptype |= $DEPEND_LINKS;
+               }
+               elsif ($type eq 'content') {
+                       $deptype |= $DEPEND_CONTENT;
+               }
+       }
+       return $deptype;
+}
+
+my $file_prune_regexp;
+sub file_pruned ($;$) {
+       my $file=shift;
+       if (@_) {
+               require File::Spec;
+               $file=File::Spec->canonpath($file);
+               my $base=File::Spec->canonpath(shift);
+               return if $file eq $base;
+               $file =~ s#^\Q$base\E/+##;
+       }
+
+       if (defined $config{include} && length $config{include}) {
+               return 0 if $file =~ m/$config{include}/;
+       }

 
 

-       my $regexp='('.join('|', @{$config{wiki_file_prune_regexps}}).')';
-       return $file =~ m/$regexp/ && $file ne $base;
+       if (! defined $file_prune_regexp) {
+               $file_prune_regexp='('.join('|', @{$config{wiki_file_prune_regexps}}).')';
+               $file_prune_regexp=qr/$file_prune_regexp/;
+       }
+       return $file =~ m/$file_prune_regexp/;

 }
 
 sub define_gettext () {
        # If translation is needed, redefine the gettext function to do it.
        # Otherwise, it becomes a quick no-op.
 }
 
 sub define_gettext () {
        # If translation is needed, redefine the gettext function to do it.
        # Otherwise, it becomes a quick no-op.

-       no warnings 'redefine';
+       my $gettext_obj;
+       my $getobj;

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

-               *gettext=sub {
-                       my $gettext_obj=eval q{
+               $getobj=sub {
+                       $gettext_obj=eval q{

                                use Locale::gettext q{textdomain};
                                Locale::gettext->domain('ikiwiki')
                        };
                                use Locale::gettext q{textdomain};
                                Locale::gettext->domain('ikiwiki')
                        };

-
-                       if ($gettext_obj) {
-                               $gettext_obj->get(shift);
-                       }
-                       else {
-                               return shift;
-                       }

                };
        }
                };
        }

-       else {
-               *gettext=sub { return shift };
-       }
+
+       no warnings 'redefine';
+       *gettext=sub {
+               $getobj->() if $getobj;
+               if ($gettext_obj) {
+                       $gettext_obj->get(shift);
+               }
+               else {
+                       return shift;
+               }
+       };
+       *ngettext=sub {
+               $getobj->() if $getobj;
+               if ($gettext_obj) {
+                       $gettext_obj->nget(@_);
+               }
+               else {
+                       return ($_[2] == 1 ? $_[0] : $_[1])
+               }
+       };

 }
 
 sub gettext {
 }
 
 sub gettext {


@@ -1803,6 +1890,11 @@ sub gettext {
        gettext(@_);
 }
 
        gettext(@_);
 }
 

+sub ngettext {
+       define_gettext();
+       ngettext(@_);
+}
+

 sub yesno ($) {
        my $val=shift;
 
 sub yesno ($) {
        my $val=shift;
 


@@ -1862,13 +1954,13 @@ sub pagespec_translate ($) {
                        [^\s()]+        # any other text
                )
                \s*             # ignore whitespace
                        [^\s()]+        # any other text
                )
                \s*             # ignore whitespace

-       }igx) {
+       }gx) {

                my $word=$1;
                if (lc $word eq 'and') {
                my $word=$1;
                if (lc $word eq 'and') {

-                       $code.=' &&';
+                       $code.=' &';

                }
                elsif (lc $word eq 'or') {
                }
                elsif (lc $word eq 'or') {

-                       $code.=' ||';
+                       $code.=' |';

                }
                elsif ($word eq "(" || $word eq ")" || $word eq "!") {
                        $code.=' '.$word;
                }
                elsif ($word eq "(" || $word eq ")" || $word eq "!") {
                        $code.=' '.$word;


@@ -1914,27 +2006,87 @@ sub pagespec_match ($$;@) {
 }
 
 sub pagespec_match_list ($$;@) {
 }
 
 sub pagespec_match_list ($$;@) {

-       my $pages=shift;
-       my $spec=shift;
-       my @params=@_;
+       my $page=shift;
+       my $pagespec=shift;
+       my %params=@_;

 
 

-       my $sub=pagespec_translate($spec);
-       error "syntax error in pagespec \"$spec\""
-               if $@ || ! defined $sub;
-       
-       my @ret;
-       my $r;
-       foreach my $page (@$pages) {
-               $r=$sub->($page, @params);
-               push @ret, $page if $r;
+       # Backwards compatability with old calling convention.
+       if (ref $page) {
+               print STDERR "warning: a plugin (".caller().") is using pagespec_match_list in an obsolete way, and needs to be updated\n";
+               $params{list}=$page;
+               $page=$params{location}; # ugh!

        }
 
        }
 

-       if (! @ret && defined $r && $r->isa("IkiWiki::ErrorReason")) {
-               error(sprintf(gettext("cannot match pages: %s"), $r));
+       my $sub=pagespec_translate($pagespec);
+       error "syntax error in pagespec \"$pagespec\""
+               if $@ || ! defined $sub;
+
+       my @candidates;
+       if (exists $params{list}) {
+               @candidates=exists $params{filter}
+                       ? grep { ! $params{filter}->($_) } @{$params{list}}
+                       : @{$params{list}};

        }
        else {
        }
        else {

-               return @ret;
+               @candidates=exists $params{filter}
+                       ? grep { ! $params{filter}->($_) } keys %pagesources
+                       : keys %pagesources;
+       }
+
+       if (defined $params{sort}) {
+               my $f;
+               if ($params{sort} eq 'title') {
+                       $f=sub { pagetitle(basename($a)) cmp pagetitle(basename($b)) };
+               }
+               elsif ($params{sort} eq 'title_natural') {
+                       eval q{use Sort::Naturally};
+                       if ($@) {
+                               error(gettext("Sort::Naturally needed for title_natural sort"));
+                       }
+                       $f=sub { Sort::Naturally::ncmp(pagetitle(basename($a)), pagetitle(basename($b))) };
+                }
+               elsif ($params{sort} eq 'mtime') {
+                       $f=sub { $pagemtime{$b} <=> $pagemtime{$a} };
+               }
+               elsif ($params{sort} eq 'age') {
+                       $f=sub { $pagectime{$b} <=> $pagectime{$a} };
+               }
+               else {
+                       error sprintf(gettext("unknown sort type %s"), $params{sort});
+               }
+               @candidates = sort { &$f } @candidates;

        }
        }

+
+       @candidates=reverse(@candidates) if $params{reverse};
+       
+       $depends{$page}{$pagespec} |= ($params{deptype} || $DEPEND_CONTENT);
+       
+       # clear params, remainder is passed to pagespec
+       my $num=$params{num};
+       delete @params{qw{num deptype reverse sort filter list}};
+       
+       my @matches;
+       my $firstfail;
+       my $count=0;
+       my $accum=IkiWiki::SuccessReason->new();
+       foreach my $p (@candidates) {
+               my $r=$sub->($p, %params, location => $page);
+               error(sprintf(gettext("cannot match pages: %s"), $r))
+                       if $r->isa("IkiWiki::ErrorReason");
+               $accum |= $r;
+               if ($r) {
+                       push @matches, $p;
+                       last if defined $num && ++$count == $num;
+               }
+       }
+
+       # Add simple dependencies for accumulated influences.
+       my $i=$accum->influences;
+       foreach my $k (keys %$i) {
+               $depends_simple{$page}{lc $k} |= $i->{$k};
+       }
+
+       return @matches;

 }
 
 sub pagespec_valid ($) {
 }
 
 sub pagespec_valid ($) {


@@ -1954,36 +2106,65 @@ sub glob2re ($) {
 package IkiWiki::FailReason;
 
 use overload (
 package IkiWiki::FailReason;
 
 use overload (

-       '""'    => sub { ${$_[0]} },
+       '""'    => sub { $_[0][0] },

        '0+'    => sub { 0 },
        '!'     => sub { bless $_[0], 'IkiWiki::SuccessReason'},
        '0+'    => sub { 0 },
        '!'     => sub { bless $_[0], 'IkiWiki::SuccessReason'},

+       '&'     => sub { $_[0]->merge_influences($_[1], 1); $_[0] },
+       '|'     => sub { $_[1]->merge_influences($_[0]); $_[1] },

        fallback => 1,
 );
 
        fallback => 1,
 );
 

-sub new {
-       my $class = shift;
-       my $value = shift;
-       return bless \$value, $class;
-}
-
-package IkiWiki::ErrorReason;
-
-our @ISA = 'IkiWiki::FailReason';
+our @ISA = 'IkiWiki::SuccessReason';

 
 package IkiWiki::SuccessReason;
 
 use overload (
 
 package IkiWiki::SuccessReason;
 
 use overload (

-       '""'    => sub { ${$_[0]} },
+       '""'    => sub { $_[0][0] },

        '0+'    => sub { 1 },
        '!'     => sub { bless $_[0], 'IkiWiki::FailReason'},
        '0+'    => sub { 1 },
        '!'     => sub { bless $_[0], 'IkiWiki::FailReason'},

+       '&'     => sub { $_[1]->merge_influences($_[0], 1); $_[1] },
+       '|'     => sub { $_[0]->merge_influences($_[1]); $_[0] },

        fallback => 1,
 );
 
 sub new {
        my $class = shift;
        my $value = shift;
        fallback => 1,
 );
 
 sub new {
        my $class = shift;
        my $value = shift;

-       return bless \$value, $class;
-};
+       return bless [$value, {@_}], $class;
+}
+
+sub influences {
+       my $this=shift;
+       $this->[1]={@_} if @_;
+       my %i=%{$this->[1]};
+       delete $i{""};
+       return \%i;
+}
+
+sub influences_static {
+       return ! $_[0][1]->{""};
+}
+
+sub merge_influences {
+       my $this=shift;
+       my $other=shift;
+       my $anded=shift;
+
+       if (! $anded || (($this || %{$this->[1]}) &&
+                       ($other || %{$other->[1]}))) {
+               foreach my $influence (keys %{$other->[1]}) {
+                       $this->[1]{$influence} |= $other->[1]{$influence};
+               }
+       }
+       else {
+               # influence blocker
+               $this->[1]={};
+       }
+}
+
+package IkiWiki::ErrorReason;
+
+our @ISA = 'IkiWiki::FailReason';

 
 package IkiWiki::PageSpec;
 
 
 package IkiWiki::PageSpec;
 


@@ -2034,27 +2215,30 @@ sub match_link ($$;@) {
        my $from=exists $params{location} ? $params{location} : '';
 
        my $links = $IkiWiki::links{$page};
        my $from=exists $params{location} ? $params{location} : '';
 
        my $links = $IkiWiki::links{$page};

-       return IkiWiki::FailReason->new("$page has no links") unless $links && @{$links};
+       return IkiWiki::FailReason->new("$page has no links", $page => $IkiWiki::DEPEND_LINKS, "" => 1)
+               unless $links && @{$links};

        my $bestlink = IkiWiki::bestlink($from, $link);
        foreach my $p (@{$links}) {
                if (length $bestlink) {
        my $bestlink = IkiWiki::bestlink($from, $link);
        foreach my $p (@{$links}) {
                if (length $bestlink) {

-                       return IkiWiki::SuccessReason->new("$page links to $link")
+                       return IkiWiki::SuccessReason->new("$page links to $link", $page => $IkiWiki::DEPEND_LINKS, "" => 1)

                                if $bestlink eq IkiWiki::bestlink($page, $p);
                }
                else {
                                if $bestlink eq IkiWiki::bestlink($page, $p);
                }
                else {

-                       return IkiWiki::SuccessReason->new("$page links to page $p matching $link")
+                       return IkiWiki::SuccessReason->new("$page links to page $p matching $link", $page => $IkiWiki::DEPEND_LINKS, "" => 1)

                                if match_glob($p, $link, %params);
                                if match_glob($p, $link, %params);

-                       $p=~s/^\///;
+                       my ($p_rel)=$p=~/^\/?(.*)/;

                        $link=~s/^\///;
                        $link=~s/^\///;

-                       return IkiWiki::SuccessReason->new("$page links to page $p matching $link")
-                               if match_glob($p, $link, %params);
+                       return IkiWiki::SuccessReason->new("$page links to page $p_rel matching $link", $page => $IkiWiki::DEPEND_LINKS, "" => 1)
+                               if match_glob($p_rel, $link, %params);

                }
        }
                }
        }

-       return IkiWiki::FailReason->new("$page does not link to $link");
+       return IkiWiki::FailReason->new("$page does not link to $link", $page => $IkiWiki::DEPEND_LINKS, "" => 1);

 }
 
 sub match_backlink ($$;@) {
 }
 
 sub match_backlink ($$;@) {

-       return match_link($_[1], $_[0], @_);
+       my $ret=match_link($_[1], $_[0], @_);
+       $ret->influences($_[1] => $IkiWiki::DEPEND_LINKS);
+       return $ret;

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


@@ -2066,14 +2250,14 @@ 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}) {

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

                }
                else {
                }
                else {

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

                }
        }
        else {
                }
        }
        else {

-               return IkiWiki::ErrorReason->new("$testpage does not exist");
+               return IkiWiki::ErrorReason->new("$testpage does not exist", $testpage => $IkiWiki::DEPEND_PRESENCE);

        }
 }
 
        }
 }
 


@@ -2086,14 +2270,14 @@ 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}) {

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

                }
                else {
                }
                else {

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

                }
        }
        else {
                }
        }
        else {

-               return IkiWiki::ErrorReason->new("$testpage does not exist");
+               return IkiWiki::ErrorReason->new("$testpage does not exist", $testpage => $IkiWiki::DEPEND_PRESENCE);

        }
 }
 
        }
 }
 


@@ -2129,11 +2313,13 @@ sub match_user ($$;@) {
        my $user=shift;
        my %params=@_;
        
        my $user=shift;
        my %params=@_;
        

+       my $regexp=IkiWiki::glob2re($user);
+       

        if (! exists $params{user}) {
                return IkiWiki::ErrorReason->new("no user specified");
        }
 
        if (! exists $params{user}) {
                return IkiWiki::ErrorReason->new("no user specified");
        }
 

-       if (defined $params{user} && lc $params{user} eq lc $user) {
+       if (defined $params{user} && $params{user}=~/^$regexp$/i) {

                return IkiWiki::SuccessReason->new("user is $user");
        }
        elsif (! defined $params{user}) {
                return IkiWiki::SuccessReason->new("user is $user");
        }
        elsif (! defined $params{user}) {