Yet another tweak to the formal definition. Much better this time.

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

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 54e00ec7b57bae548c1e559e246a3cc6763ea131..d667e7e10fe43c9162b9dd54a0105c41c80c3afe 100644 (file)
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -13,26 +13,26 @@ use open qw{:utf8 :std};
 
 use vars qw{%config %links %oldlinks %pagemtime %pagectime %pagecase
            %pagestate %wikistate %renderedfiles %oldrenderedfiles
 
 use vars qw{%config %links %oldlinks %pagemtime %pagectime %pagecase
            %pagestate %wikistate %renderedfiles %oldrenderedfiles

-           %pagesources %destsources %depends %hooks %forcerebuild
-           $gettext_obj %loaded_plugins};
+           %pagesources %destsources %depends %depends_simple %hooks
+           %forcerebuild %loaded_plugins};

 
 use Exporter q{import};
 our @EXPORT = qw(hook debug error template htmlpage add_depends pagespec_match
 
 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 pagetitle titlepage linkpage newpagefile
-                inject
+                 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

                  %config %links %pagestate %wikistate %renderedfiles
                  %pagesources %destsources);
                  %config %links %pagestate %wikistate %renderedfiles
                  %pagesources %destsources);

-our $VERSION = 2.00; # plugin interface version, next is ikiwiki version
+our $VERSION = 3.00; # plugin interface version, next is ikiwiki version

 our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
 our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE

-my $installdir=''; # INSTALLDIR_AUTOREPLACE done by Makefile, DNE
+our $installdir='/usr'; # INSTALLDIR_AUTOREPLACE done by Makefile, DNE

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

-memoize("file_pruned");
+memoize("template_file");

 
 sub getsetup () {
        wikiname => {
 
 sub getsetup () {
        wikiname => {


@@ -149,6 +149,13 @@ 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",


@@ -157,6 +164,13 @@ sub getsetup () {
                safe => 0, # path
                rebuild => 0,
        },
                safe => 0, # path
                rebuild => 0,
        },

+       underlaydirbase => {
+               type => "internal",
+               default => "$installdir/share/ikiwiki",
+               description => "parent directory containing additional underlays",
+               safe => 0,
+               rebuild => 0,
+       },

        wrappers => {
                type => "internal",
                default => [],
        wrappers => {
                type => "internal",
                default => [],


@@ -174,7 +188,7 @@ sub getsetup () {
        verbose => {
                type => "boolean",
                example => 1,
        verbose => {
                type => "boolean",
                example => 1,

-               description => "display verbose messages when building?",
+               description => "display verbose messages?",

                safe => 1,
                rebuild => 0,
        },
                safe => 1,
                rebuild => 0,
        },


@@ -194,7 +208,7 @@ sub getsetup () {
        },
        prefix_directives => {
                type => "boolean",
        },
        prefix_directives => {
                type => "boolean",

-               default => 0,
+               default => 1,

                description => "use '!'-prefixed preprocessor directives?",
                safe => 0, # changing requires manual transition
                rebuild => 1,
                description => "use '!'-prefixed preprocessor directives?",
                safe => 0, # changing requires manual transition
                rebuild => 1,


@@ -213,6 +227,13 @@ sub getsetup () {
                safe => 1,
                rebuild => 1,
        },
                safe => 1,
                rebuild => 1,
        },

+       discussionpage => {
+               type => "string",
+               default => gettext("Discussion"),
+               description => "name of Discussion pages",
+               safe => 1,
+               rebuild => 1,
+       },

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


@@ -321,8 +342,8 @@ sub getsetup () {
                default => [qr/(^|\/)\.\.(\/|$)/, qr/^\./, qr/\/\./,
                        qr/\.x?html?$/, qr/\.ikiwiki-new$/,
                        qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//,
                default => [qr/(^|\/)\.\.(\/|$)/, qr/^\./, qr/\/\./,
                        qr/\.x?html?$/, qr/\.ikiwiki-new$/,
                        qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//,

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

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


@@ -342,7 +363,7 @@ 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,


@@ -452,7 +473,7 @@ sub checkconfig () {
        if (defined $config{locale}) {
                if (POSIX::setlocale(&POSIX::LC_ALL, $config{locale})) {
                        $ENV{LANG}=$config{locale};
        if (defined $config{locale}) {
                if (POSIX::setlocale(&POSIX::LC_ALL, $config{locale})) {
                        $ENV{LANG}=$config{locale};

-                       $gettext_obj=undef;
+                       define_gettext();

                }
        }
                
                }
        }
                


@@ -522,18 +543,18 @@ 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");
        }
 
        run_hooks(getopt => sub { shift->() });
        if (grep /^-/, @ARGV) {
                loadplugin("norcs");
        }
 
        run_hooks(getopt => sub { shift->() });
        if (grep /^-/, @ARGV) {

-               print STDERR "Unknown option: $_\n"
+               print STDERR "Unknown option (or missing parameter): $_\n"

                        foreach grep /^-/, @ARGV;
                usage();
        }
                        foreach grep /^-/, @ARGV;
                usage();
        }


@@ -627,30 +648,45 @@ sub dirname ($) {
        return $file;
 }
 
        return $file;
 }
 

-sub pagetype ($) {
+sub isinternal ($) {

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

+       return exists $pagesources{$page} &&
+               $pagesources{$page} =~ /\._([^.]+)$/;
+}
+
+sub pagetype ($) {
+       my $file=shift;

        
        

-       if ($page =~ /\.([^.]+)$/) {
+       if ($file =~ /\.([^.]+)$/) {

                return $1 if exists $hooks{htmlize}{$1};
        }
                return $1 if exists $hooks{htmlize}{$1};
        }

+       my $base=basename($file);
+       if (exists $hooks{htmlize}{$base} &&
+           $hooks{htmlize}{$base}{noextension}) {
+               return $base;
+       }

        return;
 }
 
        return;
 }
 

-sub isinternal ($) {
-       my $page=shift;
-       return exists $pagesources{$page} &&
-               $pagesources{$page} =~ /\._([^.]+)$/;
-}
+my %pagename_cache;

 
 sub pagename ($) {
        my $file=shift;
 
 
 sub pagename ($) {
        my $file=shift;
 

+       if (exists $pagename_cache{$file}) {
+               return $pagename_cache{$file};
+       }
+

        my $type=pagetype($file);
        my $page=$file;
        my $type=pagetype($file);
        my $page=$file;

-       $page=~s/\Q.$type\E*$// if defined $type && !$hooks{htmlize}{$type}{keepextension};
+       $page=~s/\Q.$type\E*$//
+               if defined $type && !$hooks{htmlize}{$type}{keepextension}
+                       && !$hooks{htmlize}{$type}{noextension};

        if ($config{indexpages} && $page=~/(.*)\/index$/) {
                $page=$1;
        }
        if ($config{indexpages} && $page=~/(.*)\/index$/) {
                $page=$1;
        }

+
+       $pagename_cache{$file} = $page;

        return $page;
 }
 
        return $page;
 }
 


@@ -708,7 +744,7 @@ sub add_underlay ($) {
        my $dir=shift;
 
        if ($dir !~ /^\//) {
        my $dir=shift;
 
        if ($dir !~ /^\//) {

-               $dir="$config{underlaydir}/../$dir";
+               $dir="$config{underlaydirbase}/$dir";

        }
 
        if (! grep { $_ eq $dir } @{$config{underlaydirs}}) {
        }
 
        if (! grep { $_ eq $dir } @{$config{underlaydirs}}) {


@@ -1049,6 +1085,41 @@ sub htmllink ($$$;@) {
        return "<a href=\"$bestlink\"@attrs>$linktext</a>";
 }
 
        return "<a href=\"$bestlink\"@attrs>$linktext</a>";
 }
 

+sub openiduser ($) {
+       my $user=shift;
+
+       if ($user =~ m!^https?://! &&
+           eval q{use Net::OpenID::VerifiedIdentity; 1} && !$@) {
+               my $display;
+
+               if (Net::OpenID::VerifiedIdentity->can("DisplayOfURL")) {
+                       # this works in at least 2.x
+                       $display = Net::OpenID::VerifiedIdentity::DisplayOfURL($user);
+               }
+               else {
+                       # this only works in 1.x
+                       my $oid=Net::OpenID::VerifiedIdentity->new(identity => $user);
+                       $display=$oid->display;
+               }
+
+               # Convert "user.somehost.com" to "user [somehost.com]"
+               # (also "user.somehost.co.uk")
+               if ($display !~ /\[/) {
+                       $display=~s/^([-a-zA-Z0-9]+?)\.([-.a-zA-Z0-9]+\.[a-z]+)$/$1 [$2]/;
+               }
+               # Convert "http://somehost.com/user" to "user [somehost.com]".
+               # (also "https://somehost.com/user/")
+               if ($display !~ /\[/) {
+                       $display=~s/^https?:\/\/(.+)\/([^\/]+)\/?$/$2 [$1]/;
+               }
+               $display=~s!^https?://!!; # make sure this is removed
+               eval q{use CGI 'escapeHTML'};
+               error($@) if $@;
+               return escapeHTML($display);
+       }
+       return;
+}
+

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


@@ -1199,9 +1270,10 @@ sub preprocess ($$$;$$) {
                                        );
                                };
                                if ($@) {
                                        );
                                };
                                if ($@) {

-                                       chomp $@;
+                                       my $error=$@;
+                                       chomp $error;

                                        $ret="[[!$command <span class=\"error\">".
                                        $ret="[[!$command <span class=\"error\">".

-                                               gettext("Error").": $@"."</span>]]";
+                                               gettext("Error").": $error"."</span>]]";

                                }
                        }
                        else {
                                }
                        }
                        else {


@@ -1239,7 +1311,7 @@ sub preprocess ($$$;$$) {
                                                |
                                                "[^"]+"         # single-quoted value
                                                |
                                                |
                                                "[^"]+"         # single-quoted value
                                                |

-                                               [^\s\]]+        # unquoted value
+                                               [^"\s\]]+       # unquoted value

                                        )
                                        \s*                     # whitespace or end
                                                                # of directive
                                        )
                                        \s*                     # whitespace or end
                                                                # of directive


@@ -1262,7 +1334,7 @@ sub preprocess ($$$;$$) {
                                                |
                                                "[^"]+"         # single-quoted value
                                                |
                                                |
                                                "[^"]+"         # single-quoted value
                                                |

-                                               [^\s\]]+        # unquoted value
+                                               [^"\s\]]+       # unquoted value

                                        )
                                        \s*                     # whitespace or end
                                                                # of directive
                                        )
                                        \s*                     # whitespace or end
                                                                # of directive


@@ -1293,6 +1365,70 @@ sub indexlink () {
        return "<a href=\"$config{url}\">$config{wikiname}</a>";
 }
 
        return "<a href=\"$config{url}\">$config{wikiname}</a>";
 }
 

+sub check_canedit ($$$;$) {
+       my $page=shift;
+       my $q=shift;
+       my $session=shift;
+       my $nonfatal=shift;
+       
+       my $canedit;
+       run_hooks(canedit => sub {
+               return if defined $canedit;
+               my $ret=shift->($page, $q, $session);
+               if (defined $ret) {
+                       if ($ret eq "") {
+                               $canedit=1;
+                       }
+                       elsif (ref $ret eq 'CODE') {
+                               $ret->() unless $nonfatal;
+                               $canedit=0;
+                       }
+                       elsif (defined $ret) {
+                               error($ret) unless $nonfatal;
+                               $canedit=0;
+                       }
+               }
+       });
+       return defined $canedit ? $canedit : 1;
+}
+
+sub check_content (@) {
+       my %params=@_;
+       
+       return 1 if ! exists $hooks{checkcontent}; # optimisation
+
+       if (exists $pagesources{$params{page}}) {
+               my @diff;
+               my %old=map { $_ => 1 }
+                       split("\n", readfile(srcfile($pagesources{$params{page}})));
+               foreach my $line (split("\n", $params{content})) {
+                       push @diff, $line if ! exists $old{$_};
+               }
+               $params{diff}=join("\n", @diff);
+       }
+
+       my $ok;
+       run_hooks(checkcontent => sub {
+               return if defined $ok;
+               my $ret=shift->(%params);
+               if (defined $ret) {
+                       if ($ret eq "") {
+                               $ok=1;
+                       }
+                       elsif (ref $ret eq 'CODE') {
+                               $ret->() unless $params{nonfatal};
+                               $ok=0;
+                       }
+                       elsif (defined $ret) {
+                               error($ret) unless $params{nonfatal};
+                               $ok=0;
+                       }
+               }
+
+       });
+       return defined $ok ? $ok : 1;
+}
+

 my $wikilock;
 
 sub lockwiki () {
 my $wikilock;
 
 sub lockwiki () {


@@ -1346,7 +1482,8 @@ sub loadindex () {
        %oldrenderedfiles=%pagectime=();
        if (! $config{rebuild}) {
                %pagesources=%pagemtime=%oldlinks=%links=%depends=
        %oldrenderedfiles=%pagectime=();
        if (! $config{rebuild}) {
                %pagesources=%pagemtime=%oldlinks=%links=%depends=

-               %destsources=%renderedfiles=%pagecase=%pagestate=();
+               %destsources=%renderedfiles=%pagecase=%pagestate=
+               %depends_simple=();

        }
        my $in;
        if (! open ($in, "<", "$config{wikistatedir}/indexdb")) {
        }
        my $in;
        if (! open ($in, "<", "$config{wikistatedir}/indexdb")) {


@@ -1386,8 +1523,18 @@ sub loadindex () {
                                $links{$page}=$d->{links};
                                $oldlinks{$page}=[@{$d->{links}}];
                        }
                                $links{$page}=$d->{links};
                                $oldlinks{$page}=[@{$d->{links}}];
                        }

-                       if (exists $d->{depends}) {
-                               $depends{$page}=$d->{depends};
+                       if (exists $d->{depends_simple}) {
+                               $depends_simple{$page}={
+                                       map { $_ => 1 } @{$d->{depends_simple}}
+                               };
+                       }
+                       if (exists $d->{dependslist}) {
+                               $depends{$page}={
+                                       map { $_ => 1 } @{$d->{dependslist}}
+                               };
+                       }
+                       elsif (exists $d->{depends}) {
+                               $depends{$page}={$d->{depends} => 1};

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


@@ -1433,7 +1580,11 @@ sub saveindex () {
                };
 
                if (exists $depends{$page}) {
                };
 
                if (exists $depends{$page}) {

-                       $index{page}{$src}{depends} = $depends{$page};
+                       $index{page}{$src}{dependslist} = [ keys %{$depends{$page}} ];
+               }
+
+               if (exists $depends_simple{$page}) {
+                       $index{page}{$src}{depends_simple} = [ keys %{$depends_simple{$page}} ];

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


@@ -1465,7 +1616,8 @@ 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;


@@ -1600,99 +1752,72 @@ sub rcs_receive () {
        $hooks{rcs}{rcs_receive}{call}->();
 }
 
        $hooks{rcs}{rcs_receive}{call}->();
 }
 

-sub globlist_to_pagespec ($) {
-       my @globlist=split(' ', shift);
-
-       my (@spec, @skip);
-       foreach my $glob (@globlist) {
-               if ($glob=~/^!(.*)/) {
-                       push @skip, $glob;
-               }
-               else {
-                       push @spec, $glob;
-               }
-       }
-
-       my $spec=join(' or ', @spec);
-       if (@skip) {
-               my $skip=join(' and ', @skip);
-               if (length $spec) {
-                       $spec="$skip and ($spec)";
-               }
-               else {
-                       $spec=$skip;
-               }
-       }
-       return $spec;
-}
-
-sub is_globlist ($) {
-       my $s=shift;
-       my $ret= ( $s =~ /[^\s]+\s+([^\s]+)/ && $1 ne "and" && $1 ne "or" );
-       print STDERR "warning: deprecated GlobList style PageSpec \"$s\" will stop working in ikiwiki version 3.0\n"
-               if $ret && $s !~ /TMPL_VAR/; # hack alert
-       return $ret;
-}
-
-sub safequote ($) {
-       my $s=shift;
-       $s=~s/[{}]//g;
-       return "q{$s}";
-}
-

 sub add_depends ($$) {
        my $page=shift;
        my $pagespec=shift;
 sub add_depends ($$) {
        my $page=shift;
        my $pagespec=shift;

-       
-       return unless pagespec_valid($pagespec);

 
 

-       if (! exists $depends{$page}) {
-               $depends{$page}=$pagespec;
-       }
-       else {
-               $depends{$page}=pagespec_merge($depends{$page}, $pagespec);
+       if ($pagespec =~ /$config{wiki_file_regexp}/ &&
+               $pagespec !~ /[\s*?()!]/) {
+               # a simple dependency, which can be matched by string eq
+               $depends_simple{$page}{lc $pagespec} = 1;
+               return 1;

        }
 
        }
 

+       return unless pagespec_valid($pagespec);
+
+       $depends{$page}{$pagespec} = 1;

        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 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/+##;
+       }

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

-       return $file =~ m/$regexp/ && $file ne $base;
+       return $file =~ m/$regexp/;

 }
 
 }
 

-sub gettext {
-       # Only use gettext in the rare cases it's needed.
+sub define_gettext () {
+       # If translation is needed, redefine the gettext function to do it.
+       # Otherwise, it becomes a quick no-op.
+       no warnings 'redefine';

        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})) {

-               if (! $gettext_obj) {
-                       $gettext_obj=eval q{
+               *gettext=sub {
+                       my $gettext_obj=eval q{

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

-                       if ($@) {
-                               print STDERR "$@";
-                               $gettext_obj=undef;
+
+                       if ($gettext_obj) {
+                               $gettext_obj->get(shift);
+                       }
+                       else {

                                return shift;
                        }
                                return shift;
                        }

-               }
-               return $gettext_obj->get(shift);
+               };

        }
        else {
        }
        else {

-               return shift;
+               *gettext=sub { return shift };

        }
 }
 
        }
 }
 

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

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

-       return (defined $val && lc($val) eq gettext("yes"));
+       return (defined $val && (lc($val) eq gettext("yes") || lc($val) eq "yes" || $val eq "1"));

 }
 
 sub inject {
 }
 
 sub inject {


@@ -1720,33 +1845,20 @@ sub inject {
        use warnings;
 }
 
        use warnings;
 }
 

-sub pagespec_merge ($$) {
-       my $a=shift;
-       my $b=shift;
-
-       return $a if $a eq $b;
-
-        # Support for old-style GlobLists.
-        if (is_globlist($a)) {
-                $a=globlist_to_pagespec($a);
-        }
-        if (is_globlist($b)) {
-                $b=globlist_to_pagespec($b);
-        }
+sub add_link ($$) {
+       my $page=shift;
+       my $link=shift;

 
 

-       return "($a) or ($b)";
+       push @{$links{$page}}, $link
+               unless grep { $_ eq $link } @{$links{$page}};

 }
 
 sub pagespec_translate ($) {
        my $spec=shift;
 
 }
 
 sub pagespec_translate ($) {
        my $spec=shift;
 

-       # Support for old-style GlobLists.
-       if (is_globlist($spec)) {
-               $spec=globlist_to_pagespec($spec);
-       }
-

        # Convert spec to perl code.
        my $code="";
        # Convert spec to perl code.
        my $code="";

+       my @data;

        while ($spec=~m{
                \s*             # ignore whitespace
                (               # 1: match a single word
        while ($spec=~m{
                \s*             # ignore whitespace
                (               # 1: match a single word


@@ -1761,7 +1873,7 @@ 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') {
                        $code.=' &&';
                my $word=$1;
                if (lc $word eq 'and') {
                        $code.=' &&';


@@ -1774,19 +1886,22 @@ sub pagespec_translate ($) {
                }
                elsif ($word =~ /^(\w+)\((.*)\)$/) {
                        if (exists $IkiWiki::PageSpec::{"match_$1"}) {
                }
                elsif ($word =~ /^(\w+)\((.*)\)$/) {
                        if (exists $IkiWiki::PageSpec::{"match_$1"}) {

-                               $code.="IkiWiki::PageSpec::match_$1(\$page, ".safequote($2).", \@_)";
+                               push @data, $2;
+                               $code.="IkiWiki::PageSpec::match_$1(\$page, \$data[$#data], \@_)";

                        }
                        else {
                        }
                        else {

-                               $code.=' 0';
+                               push @data, qq{unknown function in pagespec "$word"};
+                               $code.="IkiWiki::ErrorReason->new(\$data[$#data])";

                        }
                }
                else {
                        }
                }
                else {

-                       $code.=" IkiWiki::PageSpec::match_glob(\$page, ".safequote($word).", \@_)";
+                       push @data, $word;
+                       $code.=" IkiWiki::PageSpec::match_glob(\$page, \$data[$#data], \@_)";

                }
        }
 
        if (! length $code) {
                }
        }
 
        if (! length $code) {

-               $code=0;
+               $code="IkiWiki::FailReason->new('empty pagespec')";

        }
 
        no warnings;
        }
 
        no warnings;


@@ -1804,11 +1919,35 @@ sub pagespec_match ($$;@) {
        }
 
        my $sub=pagespec_translate($spec);
        }
 
        my $sub=pagespec_translate($spec);

-       return IkiWiki::FailReason->new("syntax error in pagespec \"$spec\"")
+       return IkiWiki::ErrorReason->new("syntax error in pagespec \"$spec\"")

                if $@ || ! defined $sub;
        return $sub->($page, @params);
 }
 
                if $@ || ! defined $sub;
        return $sub->($page, @params);
 }
 

+sub pagespec_match_list ($$;@) {
+       my $pages=shift;
+       my $spec=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;
+       }
+
+       if (! @ret && defined $r && $r->isa("IkiWiki::ErrorReason")) {
+               error(sprintf(gettext("cannot match pages: %s"), $r));
+       }
+       else {
+               return @ret;
+       }
+}
+

 sub pagespec_valid ($) {
        my $spec=shift;
 
 sub pagespec_valid ($) {
        my $spec=shift;
 


@@ -1838,6 +1977,10 @@ sub new {
        return bless \$value, $class;
 }
 
        return bless \$value, $class;
 }
 

+package IkiWiki::ErrorReason;
+
+our @ISA = 'IkiWiki::FailReason';
+

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


@@ -1855,19 +1998,25 @@ sub new {
 
 package IkiWiki::PageSpec;
 
 
 package IkiWiki::PageSpec;
 

+sub derel ($$) {
+       my $path=shift;
+       my $from=shift;
+
+       if ($path =~ m!^\./!) {
+               $from=~s#/?[^/]+$## if defined $from;
+               $path=~s#^\./##;
+               $path="$from/$path" if length $from;
+       }
+
+       return $path;
+}
+

 sub match_glob ($$;@) {
        my $page=shift;
        my $glob=shift;
        my %params=@_;
        
 sub match_glob ($$;@) {
        my $page=shift;
        my $glob=shift;
        my %params=@_;
        

-       my $from=exists $params{location} ? $params{location} : '';
-       
-       # relative matching
-       if ($glob =~ m!^\./!) {
-               $from=~s#/?[^/]+$##;
-               $glob=~s#^\./##;
-               $glob="$from/$glob" if length $from;
-       }
+       $glob=derel($glob, $params{location});

 
        my $regexp=IkiWiki::glob2re($glob);
        if ($page=~/^$regexp$/i) {
 
        my $regexp=IkiWiki::glob2re($glob);
        if ($page=~/^$regexp$/i) {


@@ -1892,15 +2041,9 @@ sub match_link ($$;@) {
        my $link=lc(shift);
        my %params=@_;
 
        my $link=lc(shift);
        my %params=@_;
 

+       $link=derel($link, $params{location});

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

-       # relative matching
-       if ($link =~ m!^\.! && defined $from) {
-               $from=~s#/?[^/]+$##;
-               $link=~s#^\./##;
-               $link="$from/$link" if length $from;
-       }
-

        my $links = $IkiWiki::links{$page};
        return IkiWiki::FailReason->new("$page has no links") unless $links && @{$links};
        my $bestlink = IkiWiki::bestlink($from, $link);
        my $links = $IkiWiki::links{$page};
        return IkiWiki::FailReason->new("$page has no links") unless $links && @{$links};
        my $bestlink = IkiWiki::bestlink($from, $link);


@@ -1912,10 +2055,10 @@ sub match_link ($$;@) {
                else {
                        return IkiWiki::SuccessReason->new("$page links to page $p matching $link")
                                if match_glob($p, $link, %params);
                else {
                        return IkiWiki::SuccessReason->new("$page links to page $p matching $link")
                                if match_glob($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 $link")
+                               if match_glob($p_rel, $link, %params);

                }
        }
        return IkiWiki::FailReason->new("$page does not link to $link");
                }
        }
        return IkiWiki::FailReason->new("$page does not link to $link");


@@ -1928,6 +2071,9 @@ sub match_backlink ($$;@) {
 sub match_created_before ($$;@) {
        my $page=shift;
        my $testpage=shift;
 sub match_created_before ($$;@) {
        my $page=shift;
        my $testpage=shift;

+       my %params=@_;
+       
+       $testpage=derel($testpage, $params{location});

 
        if (exists $IkiWiki::pagectime{$testpage}) {
                if ($IkiWiki::pagectime{$page} < $IkiWiki::pagectime{$testpage}) {
 
        if (exists $IkiWiki::pagectime{$testpage}) {
                if ($IkiWiki::pagectime{$page} < $IkiWiki::pagectime{$testpage}) {


@@ -1938,13 +2084,16 @@ sub match_created_before ($$;@) {
                }
        }
        else {
                }
        }
        else {

-               return IkiWiki::FailReason->new("$testpage has no ctime");
+               return IkiWiki::ErrorReason->new("$testpage does not exist");

        }
 }
 
 sub match_created_after ($$;@) {
        my $page=shift;
        my $testpage=shift;
        }
 }
 
 sub match_created_after ($$;@) {
        my $page=shift;
        my $testpage=shift;

+       my %params=@_;
+       
+       $testpage=derel($testpage, $params{location});

 
        if (exists $IkiWiki::pagectime{$testpage}) {
                if ($IkiWiki::pagectime{$page} > $IkiWiki::pagectime{$testpage}) {
 
        if (exists $IkiWiki::pagectime{$testpage}) {
                if ($IkiWiki::pagectime{$page} > $IkiWiki::pagectime{$testpage}) {


@@ -1955,7 +2104,7 @@ sub match_created_after ($$;@) {
                }
        }
        else {
                }
        }
        else {

-               return IkiWiki::FailReason->new("$testpage has no ctime");
+               return IkiWiki::ErrorReason->new("$testpage does not exist");

        }
 }
 
        }
 }
 


@@ -1992,7 +2141,7 @@ sub match_user ($$;@) {
        my %params=@_;
        
        if (! exists $params{user}) {
        my %params=@_;
        
        if (! exists $params{user}) {

-               return IkiWiki::FailReason->new("no user specified");
+               return IkiWiki::ErrorReason->new("no user specified");

        }
 
        if (defined $params{user} && lc $params{user} eq lc $user) {
        }
 
        if (defined $params{user} && lc $params{user} eq lc $user) {


@@ -2012,7 +2161,7 @@ sub match_admin ($$;@) {
        my %params=@_;
        
        if (! exists $params{user}) {
        my %params=@_;
        
        if (! exists $params{user}) {

-               return IkiWiki::FailReason->new("no user specified");
+               return IkiWiki::ErrorReason->new("no user specified");

        }
 
        if (defined $params{user} && IkiWiki::is_admin($params{user})) {
        }
 
        if (defined $params{user} && IkiWiki::is_admin($params{user})) {


@@ -2032,7 +2181,7 @@ sub match_ip ($$;@) {
        my %params=@_;
        
        if (! exists $params{ip}) {
        my %params=@_;
        
        if (! exists $params{ip}) {

-               return IkiWiki::FailReason->new("no IP specified");
+               return IkiWiki::ErrorReason->new("no IP specified");

        }
 
        if (defined $params{ip} && lc $params{ip} eq lc $ip) {
        }
 
        if (defined $params{ip} && lc $params{ip} eq lc $ip) {