Add commonmark.

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

diff --git a/IkiWiki/Plugin/po.pm b/IkiWiki/Plugin/po.pm
index c8b5e8fdef481b2dc9ba35afe22e5b89bb1d9a1e..6b55ee35133e66a33f24710248b2afa666618189 100644 (file)
--- a/IkiWiki/Plugin/po.pm
+++ b/IkiWiki/Plugin/po.pm
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # .po as a wiki page type
 # Licensed under GPL v2 or greater
 #!/usr/bin/perl
 # .po as a wiki page type
 # Licensed under GPL v2 or greater

-# Copyright (C) 2008 intrigeri <intrigeri@boum.org>
+# Copyright (C) 2008-2009 intrigeri <intrigeri@boum.org>

 # inspired by the GPL'd po4a-translate,
 # which is Copyright 2002, 2003, 2004 by Martin Quinson (mquinson#debian.org)
 package IkiWiki::Plugin::po;
 # inspired by the GPL'd po4a-translate,
 # which is Copyright 2002, 2003, 2004 by Martin Quinson (mquinson#debian.org)
 package IkiWiki::Plugin::po;


@@ -10,6 +10,12 @@ use warnings;
 use strict;
 use IkiWiki 3.00;
 use Encode;
 use strict;
 use IkiWiki 3.00;
 use Encode;

+eval q{use Locale::Po4a::Common qw(nowrapi18n !/.*/)};
+if ($@) {
+       print STDERR gettext("warning: Old po4a detected! Recommend upgrade to 0.35.")."\n";
+       eval q{use Locale::Po4a::Common qw(!/.*/)};
+       die $@ if $@;
+}

 use Locale::Po4a::Chooser;
 use Locale::Po4a::Po;
 use File::Basename;
 use Locale::Po4a::Chooser;
 use Locale::Po4a::Po;
 use File::Basename;


@@ -17,11 +23,14 @@ use File::Copy;
 use File::Spec;
 use File::Temp;
 use Memoize;
 use File::Spec;
 use File::Temp;
 use Memoize;

-use UNIVERSAL;

 
 

+my ($master_language_code, $master_language_name);

 my %translations;
 my @origneedsbuild;
 my %origsubs;
 my %translations;
 my @origneedsbuild;
 my %origsubs;

+my @slavelanguages; # language codes ordered as in config po_slave_languages
+my %slavelanguages; # language code to name lookup
+my $language_code_pattern = '[a-zA-Z]+(?:_[a-zA-Z]+)?';

 
 memoize("istranslatable");
 memoize("_istranslation");
 
 memoize("istranslatable");
 memoize("_istranslation");


@@ -29,32 +38,42 @@ memoize("percenttranslated");
 
 sub import {
        hook(type => "getsetup", id => "po", call => \&getsetup);
 
 sub import {
        hook(type => "getsetup", id => "po", call => \&getsetup);

-       hook(type => "checkconfig", id => "po", call => \&checkconfig);
+       hook(type => "checkconfig", id => "po", call => \&checkconfig,
+               last => 1);

        hook(type => "needsbuild", id => "po", call => \&needsbuild);
        hook(type => "needsbuild", id => "po", call => \&needsbuild);

-       hook(type => "scan", id => "po", call => \&scan, last =>1);
+       hook(type => "scan", id => "po", call => \&scan, last => 1);

        hook(type => "filter", id => "po", call => \&filter);
        hook(type => "htmlize", id => "po", call => \&htmlize);
        hook(type => "pagetemplate", id => "po", call => \&pagetemplate, last => 1);
        hook(type => "filter", id => "po", call => \&filter);
        hook(type => "htmlize", id => "po", call => \&htmlize);
        hook(type => "pagetemplate", id => "po", call => \&pagetemplate, last => 1);

-       hook(type => "postscan", id => "po", call => \&postscan);

        hook(type => "rename", id => "po", call => \&renamepages, first => 1);
        hook(type => "delete", id => "po", call => \&mydelete);
        hook(type => "rename", id => "po", call => \&renamepages, first => 1);
        hook(type => "delete", id => "po", call => \&mydelete);

-       hook(type => "change", id => "po", call => \&change);
-       hook(type => "cansave", id => "po", call => \&cansave);
+       hook(type => "rendered", id => "po", call => \&rendered);
+       hook(type => "checkcontent", id => "po", call => \&checkcontent);

        hook(type => "canremove", id => "po", call => \&canremove);
        hook(type => "canrename", id => "po", call => \&canrename);
        hook(type => "editcontent", id => "po", call => \&editcontent);
        hook(type => "canremove", id => "po", call => \&canremove);
        hook(type => "canrename", id => "po", call => \&canrename);
        hook(type => "editcontent", id => "po", call => \&editcontent);

-       hook(type => "formbuilder_setup", id => "po", call => \&formbuilder_setup);
-
-       $origsubs{'bestlink'}=\&IkiWiki::bestlink;
-       inject(name => "IkiWiki::bestlink", call => \&mybestlink);
-       $origsubs{'beautify_urlpath'}=\&IkiWiki::beautify_urlpath;
-       inject(name => "IkiWiki::beautify_urlpath", call => \&mybeautify_urlpath);
-       $origsubs{'targetpage'}=\&IkiWiki::targetpage;
-       inject(name => "IkiWiki::targetpage", call => \&mytargetpage);
-       $origsubs{'urlto'}=\&IkiWiki::urlto;
-       inject(name => "IkiWiki::urlto", call => \&myurlto);
-       $origsubs{'nicepagetitle'}=\&IkiWiki::nicepagetitle;
-       inject(name => "IkiWiki::nicepagetitle", call => \&mynicepagetitle);
+       hook(type => "formbuilder_setup", id => "po", call => \&formbuilder_setup, last => 1);
+       hook(type => "formbuilder", id => "po", call => \&formbuilder);
+
+       if (! %origsubs) {
+               $origsubs{'bestlink'}=\&IkiWiki::bestlink;
+               inject(name => "IkiWiki::bestlink", call => \&mybestlink);
+               $origsubs{'beautify_urlpath'}=\&IkiWiki::beautify_urlpath;
+               inject(name => "IkiWiki::beautify_urlpath", call => \&mybeautify_urlpath);
+               $origsubs{'targetpage'}=\&IkiWiki::targetpage;
+               inject(name => "IkiWiki::targetpage", call => \&mytargetpage);
+               $origsubs{'urlto'}=\&IkiWiki::urlto;
+               inject(name => "IkiWiki::urlto", call => \&myurlto);
+               $origsubs{'cgiurl'}=\&IkiWiki::cgiurl;
+               inject(name => "IkiWiki::cgiurl", call => \&mycgiurl);
+               if (IkiWiki->can('rootpage')) {
+                       $origsubs{'rootpage'}=\&IkiWiki::rootpage;
+                       inject(name => "IkiWiki::rootpage", call => \&myrootpage)
+                               if defined $origsubs{'rootpage'};
+               }
+               $origsubs{'isselflink'}=\&IkiWiki::isselflink;
+               inject(name => "IkiWiki::isselflink", call => \&myisselflink);
+       }

 }
 
 
 }
 
 


@@ -66,7 +85,7 @@ sub import {
 # 2. Injected functions
 # 3. Blackboxes for private data
 # 4. Helper functions
 # 2. Injected functions
 # 3. Blackboxes for private data
 # 4. Helper functions

-# 5. PageSpec's
+# 5. PageSpecs

 
 
 # ,----
 
 
 # ,----


@@ -76,33 +95,31 @@ sub import {
 sub getsetup () {
        return
                plugin => {
 sub getsetup () {
        return
                plugin => {

-                       safe => 0,
-                       rebuild => 1,
+                       safe => 1,
+                       rebuild => 1, # format plugin
+                       section => "format",

                },
                po_master_language => {
                        type => "string",
                },
                po_master_language => {
                        type => "string",

-                       example => {
-                               'code' => 'en',
-                               'name' => 'English'
-                       },
+                       example => "en|English",

                        description => "master language (non-PO files)",
                        safe => 1,
                        rebuild => 1,
                },
                po_slave_languages => {
                        type => "string",
                        description => "master language (non-PO files)",
                        safe => 1,
                        rebuild => 1,
                },
                po_slave_languages => {
                        type => "string",

-                       example => {
-                               'fr' => 'Français',
-                               'es' => 'Castellano',
-                               'de' => 'Deutsch'
-                       },
-                       description => "slave languages (PO files)",
+                       example => [
+                               'fr|Français',
+                               'es|Español',
+                               'de|Deutsch'
+                       ],
+                       description => "slave languages (translated via PO files) format: ll|Langname",

                        safe => 1,
                        rebuild => 1,
                },
                po_translatable_pages => {
                        type => "pagespec",
                        safe => 1,
                        rebuild => 1,
                },
                po_translatable_pages => {
                        type => "pagespec",

-                       example => "!*/Discussion",
+                       example => "* and !*/Discussion",

                        description => "PageSpec controlling which pages are translatable",
                        link => "ikiwiki/PageSpec",
                        safe => 1,
                        description => "PageSpec controlling which pages are translatable",
                        link => "ikiwiki/PageSpec",
                        safe => 1,


@@ -115,28 +132,53 @@ sub getsetup () {
                        safe => 1,
                        rebuild => 1,
                },
                        safe => 1,
                        rebuild => 1,
                },

-               po_translation_status_in_links => {
-                       type => "boolean",
-                       example => 1,
-                       description => "display translation status in links to translations",
-                       safe => 1,
-                       rebuild => 1,
-               },

 }
 
 sub checkconfig () {
 }
 
 sub checkconfig () {

-       foreach my $field (qw{po_master_language po_slave_languages}) {
-               if (! exists $config{$field} || ! defined $config{$field}) {
-                       error(sprintf(gettext("Must specify %s"), $field));
+       if (exists $config{po_master_language}) {
+               if (! ref $config{po_master_language}) {
+                       ($master_language_code, $master_language_name)=
+                               splitlangpair($config{po_master_language});
+               }
+               else {
+                       $master_language_code=$config{po_master_language}{code};
+                       $master_language_name=$config{po_master_language}{name};
+                       $config{po_master_language}=joinlangpair($master_language_code, $master_language_name);

                }
        }
                }
        }

-       if (! (keys %{$config{po_slave_languages}})) {
-               error(gettext("At least one slave language must be defined in po_slave_languages"));
+       if (! defined $master_language_code) {
+               $master_language_code='en';

        }
        }

+       if (! defined $master_language_name) {
+               $master_language_name='English';
+       }
+
+       if (ref $config{po_slave_languages} eq 'ARRAY') {
+               foreach my $pair (@{$config{po_slave_languages}}) {
+                       my ($code, $name)=splitlangpair($pair);
+                       if (defined $code && ! exists $slavelanguages{$code}) {
+                               push @slavelanguages, $code;
+                               $slavelanguages{$code} = $name;
+                       }
+               }
+       }
+       elsif (ref $config{po_slave_languages} eq 'HASH') {
+               %slavelanguages=%{$config{po_slave_languages}};
+               @slavelanguages = sort {
+                       $config{po_slave_languages}->{$a} cmp $config{po_slave_languages}->{$b};
+               } keys %slavelanguages;
+               $config{po_slave_languages}=[
+                       map { joinlangpair($_, $slavelanguages{$_}) } @slavelanguages
+               ]
+       }
+
+       delete $slavelanguages{$master_language_code};
+

        map {
                islanguagecode($_)
                        or error(sprintf(gettext("%s is not a valid language code"), $_));
        map {
                islanguagecode($_)
                        or error(sprintf(gettext("%s is not a valid language code"), $_));

-       } ($config{po_master_language}{code}, keys %{$config{po_slave_languages}});
+       } ($master_language_code, @slavelanguages);
+

        if (! exists $config{po_translatable_pages} ||
            ! defined $config{po_translatable_pages}) {
                $config{po_translatable_pages}="";
        if (! exists $config{po_translatable_pages} ||
            ! defined $config{po_translatable_pages}) {
                $config{po_translatable_pages}="";


@@ -145,22 +187,37 @@ sub checkconfig () {
            ! defined $config{po_link_to}) {
                $config{po_link_to}='default';
        }
            ! defined $config{po_link_to}) {
                $config{po_link_to}='default';
        }

-       elsif (! grep {
-                       $config{po_link_to} eq $_
-               } ('default', 'current', 'negotiated')) {
-               warn(sprintf(gettext('po_link_to=%s is not a valid setting, falling back to po_link_to=default'),
-                               $config{po_link_to}));
+       elsif ($config{po_link_to} !~ /^(default|current|negotiated)$/) {
+               warn(sprintf(gettext('%s is not a valid value for po_link_to, falling back to po_link_to=default'),
+                            $config{po_link_to}));

                $config{po_link_to}='default';
        }
        elsif ($config{po_link_to} eq "negotiated" && ! $config{usedirs}) {
                warn(gettext('po_link_to=negotiated requires usedirs to be enabled, falling back to po_link_to=default'));
                $config{po_link_to}='default';
        }
                $config{po_link_to}='default';
        }
        elsif ($config{po_link_to} eq "negotiated" && ! $config{usedirs}) {
                warn(gettext('po_link_to=negotiated requires usedirs to be enabled, falling back to po_link_to=default'));
                $config{po_link_to}='default';
        }

-       if (! exists $config{po_translation_status_in_links} ||
-           ! defined $config{po_translation_status_in_links}) {
-               $config{po_translation_status_in_links}=1;
-       }
+

        push @{$config{wiki_file_prune_regexps}}, qr/\.pot$/;
        push @{$config{wiki_file_prune_regexps}}, qr/\.pot$/;

+
+       # Translated versions of the underlays are added if available.
+       foreach my $underlay ("basewiki",
+                             map { m/^\Q$config{underlaydirbase}\E\/*(.*)/ }
+                                 reverse @{$config{underlaydirs}}) {
+               next if $underlay=~/^locale\//;
+
+               # Underlays containing the po files for slave languages.
+               foreach my $ll (@slavelanguages) {
+                       add_underlay("po/$ll/$underlay")
+                               if -d "$config{underlaydirbase}/po/$ll/$underlay";
+               }
+       
+               if ($master_language_code ne 'en') {
+                       # Add underlay containing translated source files
+                       # for the master language.
+                       add_underlay("locale/$master_language_code/$underlay")
+                               if -d "$config{underlaydirbase}/locale/$master_language_code/$underlay";
+               }
+       }

 }
 
 sub needsbuild () {
 }
 
 sub needsbuild () {


@@ -175,47 +232,67 @@ sub needsbuild () {
 
        # make existing translations depend on the corresponding master page
        foreach my $master (keys %translations) {
 
        # make existing translations depend on the corresponding master page
        foreach my $master (keys %translations) {

-               map add_depends($_, $master), values %{otherlanguages($master)};
+               map add_depends($_, $master), values %{otherlanguages_pages($master)};

        }
        }

+
+       return $needsbuild;

 }
 
 }
 

-# Massage the recorded state of internal links so that:
-# - it matches the actually generated links, rather than the links as written
-#   in the pages' source
-# - backlinks are consistent in all cases

 sub scan (@) {
        my %params=@_;
        my $page=$params{page};
        my $content=$params{content};
 sub scan (@) {
        my %params=@_;
        my $page=$params{page};
        my $content=$params{content};

-
-       return unless UNIVERSAL::can("IkiWiki::Plugin::link", "import");
-
-       if (istranslation($page)) {
-               foreach my $destpage (@{$links{$page}}) {
-                       if (istranslatable($destpage)) {
-                               # replace one occurence of $destpage in $links{$page}
-                               # (we only want to replace the one that was added by
-                               # IkiWiki::Plugin::link::scan, other occurences may be
-                               # there for other reasons)
-                               for (my $i=0; $i<@{$links{$page}}; $i++) {
-                                       if (@{$links{$page}}[$i] eq $destpage) {
-                                               @{$links{$page}}[$i] = $destpage . '.' . lang($page);
-                                               last;
-                                       }
-                               }
+       my $run_by_po=$params{run_by_po};
+
+       # Massage the recorded state of internal links so that:
+       # - it matches the actually generated links, rather than the links as
+       #   written in the pages' source
+       # - backlinks are consistent in all cases
+
+       # A second scan pass is made over translation pages, so as an
+       # optimization, we only do so on the second pass in this case,
+       # i.e. when this hook is called by itself.
+       if ($run_by_po && istranslation($page)) {
+               # replace the occurence of $destpage in $links{$page}
+               my @orig_links = @{$links{$page}};
+               $links{$page} = [];
+               foreach my $destpage (@orig_links) {
+                       if (istranslatedto($destpage, lang($page))) {
+                               add_link($page, $destpage . '.' . lang($page));
+                       }
+                       else {
+                               add_link($page, $destpage);

                        }
                }
        }
                        }
                }
        }

-       elsif (! istranslatable($page) && ! istranslation($page)) {
+       # No second scan pass is done for a non-translation page, so
+       # links massaging must happen on first pass in this case.
+       elsif (! $run_by_po && ! istranslatable($page) && ! istranslation($page)) {

                foreach my $destpage (@{$links{$page}}) {
                        if (istranslatable($destpage)) {
                                # make sure any destpage's translations has
                                # $page in its backlinks
                foreach my $destpage (@{$links{$page}}) {
                        if (istranslatable($destpage)) {
                                # make sure any destpage's translations has
                                # $page in its backlinks

-                               push @{$links{$page}},
-                                       values %{otherlanguages($destpage)};
+                               foreach my $link (values %{otherlanguages_pages($destpage)}) {
+                                       add_link($page, $link);
+                               }

                        }
                }
        }
                        }
                }
        }

+
+       # Re-run the preprocess hooks in scan mode, then the scan hooks,
+       # over the po-to-markup converted content
+       return if $run_by_po; # avoid looping endlessly
+       return unless istranslation($page);
+       $content = po_to_markup($page, $content);
+       require IkiWiki;
+       IkiWiki::preprocess($page, $page, $content, 1);
+       IkiWiki::run_hooks(scan => sub {
+               shift->(
+                       page => $page,
+                       content => $content,
+                       run_by_po => 1,
+               );
+       });

 }
 
 # We use filter to convert PO to the master page's format,
 }
 
 # We use filter to convert PO to the master page's format,


@@ -244,8 +321,8 @@ sub htmlize (@) {
 
        # force content to be htmlize'd as if it was the same type as the master page
        return IkiWiki::htmlize($page, $page,
 
        # force content to be htmlize'd as if it was the same type as the master page
        return IkiWiki::htmlize($page, $page,

-                               pagetype(srcfile($pagesources{masterpage($page)})),
-                               $content);
+               pagetype(srcfile($pagesources{masterpage($page)})),
+               $content);

 }
 
 sub pagetemplate (@) {
 }
 
 sub pagetemplate (@) {


@@ -265,29 +342,39 @@ sub pagetemplate (@) {
        if ($template->query(name => "istranslatable")) {
                $template->param(istranslatable => istranslatable($page));
        }
        if ($template->query(name => "istranslatable")) {
                $template->param(istranslatable => istranslatable($page));
        }

+       my $lang_code = istranslation($page) ? lang($page) : $master_language_code;
+       if ($template->query(name => "lang_code")) {
+               $template->param(lang_code => $lang_code);
+       }
+       if ($template->query(name => "html_lang_code")) {
+               $template->param(html_lang_code => htmllangcode($lang_code));
+       }
+       if ($template->query(name => "html_lang_dir")) {
+               $template->param(html_lang_dir => htmllangdir($lang_code));
+       }
+       if ($template->query(name => "lang_name")) {
+               $template->param(lang_name => languagename($lang_code));
+       }

        if ($template->query(name => "HOMEPAGEURL")) {
                $template->param(homepageurl => homepageurl($page));
        }
        if ($template->query(name => "otherlanguages")) {
                $template->param(otherlanguages => [otherlanguagesloop($page)]);
        if ($template->query(name => "HOMEPAGEURL")) {
                $template->param(homepageurl => homepageurl($page));
        }
        if ($template->query(name => "otherlanguages")) {
                $template->param(otherlanguages => [otherlanguagesloop($page)]);

-               map add_depends($page, $_), (values %{otherlanguages($page)});
-       }
-       # Rely on IkiWiki::Render's genpage() to decide wether
-       # a discussion link should appear on $page; this is not
-       # totally accurate, though: some broken links may be generated
-       # when cgiurl is disabled.
-       # This compromise avoids some code duplication, and will probably
-       # prevent future breakage when ikiwiki internals change.
-       # Known limitations are preferred to future random bugs.
-       if ($template->param('discussionlink') && istranslation($page)) {
-               $template->param('discussionlink' => htmllink(
-                                                       $page,
-                                                       $destpage,
-                                                       $masterpage . '/' . gettext("Discussion"),
-                                                       noimageinline => 1,
-                                                       forcesubpage => 0,
-                                                       linktext => gettext("Discussion"),
-                                                       ));
+               map add_depends($page, $_), (values %{otherlanguages_pages($page)});
+       }
+       if ($config{discussion} && istranslation($page)) {
+               if ($page !~ /.*\/\Q$config{discussionpage}\E$/i &&
+                  (length $config{cgiurl} ||
+                   exists $links{$masterpage."/".lc($config{discussionpage})})) {
+                       $template->param('discussionlink' => htmllink(
+                               $page,
+                               $destpage,
+                               $masterpage . '/' . $config{discussionpage},
+                               noimageinline => 1,
+                               forcesubpage => 0,
+                               linktext => $config{discussionpage},
+               ));
+               }

        }
        # Remove broken parentlink to ./index.html on home page's translations.
        # It works because this hook has the "last" parameter set, to ensure it
        }
        # Remove broken parentlink to ./index.html on home page's translations.
        # It works because this hook has the "last" parameter set, to ensure it


@@ -297,99 +384,101 @@ sub pagetemplate (@) {
            && $masterpage eq "index") {
                $template->param('parentlinks' => []);
        }
            && $masterpage eq "index") {
                $template->param('parentlinks' => []);
        }

-} # }}}
-
-sub postscan (@) {
-       my %params = @_;
-       my $page = $params{page};
-
-       # backlinks involve back-dependencies, so that nicepagetitle effects,
-       # such as translation status displayed in links, are updated
-       use IkiWiki::Render;
-       map add_depends($page, $_), keys %{$IkiWiki::backlinks{$page}};
+       if (ishomepage($page) && $template->query(name => "title")
+           && !$template->param("title_overridden")) {
+               $template->param(title => $config{wikiname});
+       }

 }
 
 # Add the renamed page translations to the list of to-be-renamed pages.
 }
 
 # Add the renamed page translations to the list of to-be-renamed pages.

-sub renamepages($$$) {
-       my ($torename, $cgi, $session) = (shift, shift, shift);
+sub renamepages (@) {
+       my %params = @_;

 
 

-       # copy the initial array, so that we can iterate on it AND
-       # modify it at the same time, without iterating on the items we
-       # pushed on it ourselves
-       my @torename=@{$torename};
+       my %torename = %{$params{torename}};
+       my $session = $params{session};

 
        # Save the page(s) the user asked to rename, so that our
        # canrename hook can tell the difference between:
        #  - a translation being renamed as a consequence of its master page
        #    being renamed
        #  - a user trying to directly rename a translation
 
        # Save the page(s) the user asked to rename, so that our
        # canrename hook can tell the difference between:
        #  - a translation being renamed as a consequence of its master page
        #    being renamed
        #  - a user trying to directly rename a translation

-       # This is why this hook has to be run first, before @torename is modified
-       # by other plugins.
-       $session->param(po_orig_torename => [ @torename ]);
+       # This is why this hook has to be run first, before the list of pages
+       # to rename is modified by other plugins.
+       my @orig_torename;
+       @orig_torename=@{$session->param("po_orig_torename")}
+               if defined $session->param("po_orig_torename");
+       push @orig_torename, $torename{src};
+       $session->param(po_orig_torename => \@orig_torename);

        IkiWiki::cgi_savesession($session);
 
        IkiWiki::cgi_savesession($session);
 

-       foreach my $rename (@torename) {
-               next unless istranslatable($rename->{src});
-               my %otherpages=%{otherlanguages($rename->{src})};
-               while (my ($lang, $otherpage) = each %otherpages) {
-                       push @{$torename}, {
-                               src => $otherpage,
-                               srcfile => $pagesources{$otherpage},
-                               dest => otherlanguage($rename->{dest}, $lang),
-                               destfile => $rename->{dest}.".".$lang.".po",
-                               required => 0,
-                       };
-               }
+       return () unless istranslatable($torename{src});
+
+       my @ret;
+       my %otherpages=%{otherlanguages_pages($torename{src})};
+       while (my ($lang, $otherpage) = each %otherpages) {
+               push @ret, {
+                       src => $otherpage,
+                       srcfile => $pagesources{$otherpage},
+                       dest => otherlanguage_page($torename{dest}, $lang),
+                       destfile => $torename{dest}.".".$lang.".po",
+                       required => 0,
+               };

        }
        }

+       return @ret;

 }
 
 }
 

-sub mydelete(@) {
+sub mydelete (@) {

        my @deleted=@_;
 
        map { deletetranslations($_) } grep istranslatablefile($_), @deleted;
 }
 
        my @deleted=@_;
 
        map { deletetranslations($_) } grep istranslatablefile($_), @deleted;
 }
 

-sub change(@) {
+sub rendered (@) {

        my @rendered=@_;
 
        my $updated_po_files=0;
 
        # Refresh/create POT and PO files as needed.
        foreach my $file (grep {istranslatablefile($_)} @rendered) {
        my @rendered=@_;
 
        my $updated_po_files=0;
 
        # Refresh/create POT and PO files as needed.
        foreach my $file (grep {istranslatablefile($_)} @rendered) {

-               my $page=pagename($file);

                my $masterfile=srcfile($file);
                my $masterfile=srcfile($file);

+               my $page=pagename($file);

                my $updated_pot_file=0;
                my $updated_pot_file=0;

-               # Only refresh Pot file if it does not exist, or if
-               # $pagesources{$page} was changed: don't if only the HTML was
+
+               # Avoid touching underlay files.
+               next if $masterfile ne "$config{srcdir}/$file";
+
+               # Only refresh POT file if it does not exist, or if
+               # the source was changed: don't if only the HTML was

                # refreshed, e.g. because of a dependency.
                # refreshed, e.g. because of a dependency.

-               if ((grep { $_ eq $pagesources{$page} } @origneedsbuild)
-                   || ! -e potfile($masterfile)) {
+               if ((grep { $_ eq $pagesources{$page} } @origneedsbuild) ||
+                   ! -e potfile($masterfile)) {

                        refreshpot($masterfile);
                        $updated_pot_file=1;
                }
                my @pofiles;
                        refreshpot($masterfile);
                        $updated_pot_file=1;
                }
                my @pofiles;

-               map {
-                       push @pofiles, $_ if ($updated_pot_file || ! -e $_);
-               } (pofiles($masterfile));
+               foreach my $po (pofiles($masterfile)) {
+                       next if ! $updated_pot_file && -e $po;
+                       next if grep { $po=~/\Q$_\E/ } @{$config{underlaydirs}};
+                       push @pofiles, $po;
+               }

                if (@pofiles) {
                        refreshpofiles($masterfile, @pofiles);
                if (@pofiles) {
                        refreshpofiles($masterfile, @pofiles);

-                       map { IkiWiki::rcs_add($_) } @pofiles if $config{rcs};
+                       map { s/^\Q$config{srcdir}\E\/*//; IkiWiki::rcs_add($_) } @pofiles if $config{rcs};

                        $updated_po_files=1;
                }
        }
 
        if ($updated_po_files) {
                commit_and_refresh(
                        $updated_po_files=1;
                }
        }
 
        if ($updated_po_files) {
                commit_and_refresh(

-                       gettext("updated PO files"),
-                       "IkiWiki::Plugin::po::change");
+                       gettext("updated PO files"));

        }
 }
 
        }
 }
 

-sub cansave ($$$$) {
-       my ($page, $content, $cgi, $session) = (shift, shift, shift, shift);
+sub checkcontent (@) {
+       my %params=@_;

 
 

-       if (istranslation($page)) {
-               my $res = isvalidpo($content);
+       if (istranslation($params{page})) {
+               my $res = isvalidpo($params{content});

                if ($res) {
                        return undef;
                }
                if ($res) {
                        return undef;
                }


@@ -400,19 +489,19 @@ sub cansave ($$$$) {
        return undef;
 }
 
        return undef;
 }
 

-sub canremove ($$$) {
-       my ($page, $cgi, $session) = (shift, shift, shift);
+sub canremove (@) {
+       my %params = @_;

 
 

-       if (istranslation($page)) {
-               return gettext("Can not remove a translation. Removing the master page, ".
-                              "though, removes its translations as well.");
+       if (istranslation($params{page})) {
+               return gettext("Can not remove a translation. If the master page is removed, ".
+                              "however, its translations will be removed as well.");

        }
        return undef;
 }
 
        }
        return undef;
 }
 

-sub canrename ($$@) {
-       my ($cgi, $session) = (shift, shift);
+sub canrename (@) {

        my %params = @_;
        my %params = @_;

+       my $session = $params{session};

 
        if (istranslation($params{src})) {
                my $masterpage = masterpage($params{src});
 
        if (istranslation($params{src})) {
                my $masterpage = masterpage($params{src});


@@ -423,9 +512,9 @@ sub canrename ($$@) {
                # by looking for the master page in the list of to-be-renamed pages we
                # saved early in the renaming process.
                my $orig_torename = $session->param("po_orig_torename");
                # by looking for the master page in the list of to-be-renamed pages we
                # saved early in the renaming process.
                my $orig_torename = $session->param("po_orig_torename");

-               unless (scalar grep { $_->{src} eq $masterpage } @{$orig_torename}) {
-                       return gettext("Can not rename a translation. Renaming the master page, ".
-                                      "though, renames its translations as well.");
+               unless (grep { $_ eq $masterpage } @{$orig_torename}) {
+                       return gettext("Can not rename a translation. If the master page is renamed, ".
+                                      "however, its translations will be renamed as well.");

                }
        }
        return undef;
                }
        }
        return undef;


@@ -445,13 +534,70 @@ sub formbuilder_setup (@) {
        my $form=$params{form};
        my $q=$params{cgi};
 
        my $form=$params{form};
        my $q=$params{cgi};
 

-       return unless (defined $form->field("do") && $form->field("do") eq "create");
+       return unless defined $form->field("do");

 
 

-       my $template=template("pocreatepage.tmpl");
-       $template->param(LANG => $config{po_master_language}{name});
-       $form->tmpl_param(message => $template->output);
+       if ($form->field("do") eq "create") {
+               # Warn the user: new pages must be written in master language.
+               my $template=template("pocreatepage.tmpl");
+               $template->param(LANG => $master_language_name);
+               $form->tmpl_param(message => $template->output);
+       }
+       elsif ($form->field("do") eq "edit") {
+               # Remove the rename/remove buttons on slave pages.
+               # This has to be done after the rename/remove plugins have added
+               # their buttons, which is why this hook must be run last.
+               # The canrename/canremove hooks already ensure this is forbidden
+               # at the backend level, so this is only UI sugar.
+               if (istranslation($form->field("page"))) {
+                       map {
+                               for (my $i = 0; $i < @{$params{buttons}}; $i++) {
+                                       if (@{$params{buttons}}[$i] eq $_) {
+                                               delete  @{$params{buttons}}[$i];
+                                               last;
+                                       }
+                               }
+                       } qw(Rename Remove);
+               }
+       }

 }
 
 }
 

+sub formbuilder (@) {
+       my %params=@_;
+       my $form=$params{form};
+       my $q=$params{cgi};
+
+       return unless defined $form->field("do");
+
+       # Do not allow to create pages of type po: they are automatically created.
+       # The main reason to do so is to bypass the "favor the type of linking page
+       # on page creation" logic, which is unsuitable when a broken link is clicked
+       # on a slave (PO) page.
+       # This cannot be done in the formbuilder_setup hook as the list of types is
+       # computed later.
+       if ($form->field("do") eq "create") {
+               foreach my $field ($form->field) {
+                       next unless "$field" eq "type";
+                       next unless $field->type eq 'select';
+                       my $orig_value = $field->value;
+                       # remove po from the list of types
+                       my @types = grep { $_->[0] ne 'po' } $field->options;
+                       $field->options(\@types) if @types;
+                       # favor the type of linking page's masterpage
+                       if ($orig_value eq 'po') {
+                               my ($from, $type);
+                               if (defined $form->field('from')) {
+                                       ($from)=$form->field('from')=~/$config{wiki_file_regexp}/;
+                                       $from = masterpage($from);
+                               }
+                               if (defined $from && exists $pagesources{$from}) {
+                                       $type=pagetype($pagesources{$from});
+                               }
+                               $type=$config{default_pageext} unless defined $type;
+                               $field->value($type) ;
+                       }
+               }
+       }
+}

 
 # ,----
 # | Injected functions
 
 # ,----
 # | Injected functions


@@ -462,11 +608,16 @@ sub mybestlink ($$) {
        my $page=shift;
        my $link=shift;
 
        my $page=shift;
        my $link=shift;
 

+       return $origsubs{'bestlink'}->($page, $link)
+               if defined $config{po_link_to} && $config{po_link_to} eq "default";
+

        my $res=$origsubs{'bestlink'}->(masterpage($page), $link);
        my $res=$origsubs{'bestlink'}->(masterpage($page), $link);

+       my @caller = caller(1);

        if (length $res
        if (length $res

-           && ($config{po_link_to} eq "current" || $config{po_link_to} eq "negotiated")
-           && istranslatable($res)
-           && istranslation($page)) {
+           && istranslatedto($res, lang($page))
+           && istranslation($page)
+           &&  !(exists $caller[3] && defined $caller[3]
+                 && ($caller[3] eq "IkiWiki::PageSpec::match_link"))) {

                return $res . "." . lang($page);
        }
        return $res;
                return $res . "." . lang($page);
        }
        return $res;


@@ -476,33 +627,37 @@ sub mybeautify_urlpath ($) {
        my $url=shift;
 
        my $res=$origsubs{'beautify_urlpath'}->($url);
        my $url=shift;
 
        my $res=$origsubs{'beautify_urlpath'}->($url);

-       if ($config{po_link_to} eq "negotiated") {
-               $res =~ s!/\Qindex.$config{po_master_language}{code}.$config{htmlext}\E$!/!;
+       if (defined $config{po_link_to} && $config{po_link_to} eq "negotiated") {
+               $res =~ s!/\Qindex.$master_language_code.$config{htmlext}\E$!/!;

                $res =~ s!/\Qindex.$config{htmlext}\E$!/!;
                map {
                        $res =~ s!/\Qindex.$_.$config{htmlext}\E$!/!;
                $res =~ s!/\Qindex.$config{htmlext}\E$!/!;
                map {
                        $res =~ s!/\Qindex.$_.$config{htmlext}\E$!/!;

-               } (keys %{$config{po_slave_languages}});
+               } @slavelanguages;

        }
        return $res;
 }
 
        }
        return $res;
 }
 

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

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

+       my $filename=shift;

 
        if (istranslation($page) || istranslatable($page)) {
                my ($masterpage, $lang) = (masterpage($page), lang($page));
 
        if (istranslation($page) || istranslatable($page)) {
                my ($masterpage, $lang) = (masterpage($page), lang($page));

-               if (! $config{usedirs} || $masterpage eq 'index') {
+               if (defined $filename) {
+                       return $masterpage . "/" . $filename . "." . $lang . "." . $ext;
+               }
+               elsif (! $config{usedirs} || $masterpage eq 'index') {

                        return $masterpage . "." . $lang . "." . $ext;
                }
                else {
                        return $masterpage . "/index." . $lang . "." . $ext;
                }
        }
                        return $masterpage . "." . $lang . "." . $ext;
                }
                else {
                        return $masterpage . "/index." . $lang . "." . $ext;
                }
        }

-       return $origsubs{'targetpage'}->($page, $ext);
+       return $origsubs{'targetpage'}->($page, $ext, $filename);

 }
 
 }
 

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

        my $to=shift;
        my $from=shift;
        my $absolute=shift;
        my $to=shift;
        my $from=shift;
        my $absolute=shift;


@@ -511,23 +666,32 @@ sub myurlto ($$;$) {
        if (! length $to
            && $config{po_link_to} eq "current"
            && istranslatable('index')) {
        if (! length $to
            && $config{po_link_to} eq "current"
            && istranslatable('index')) {

-               return IkiWiki::beautify_urlpath(IkiWiki::baseurl($from) . "index." . lang($from) . ".$config{htmlext}");
+               if (defined $from) {
+                       return IkiWiki::beautify_urlpath(IkiWiki::baseurl($from) . "index." . lang($from) . ".$config{htmlext}");
+               }
+               else {
+                       return $origsubs{'urlto'}->($to,$from,$absolute);
+               }

        }
        # avoid using our injected beautify_urlpath if run by cgi_editpage,
        # so that one is redirected to the just-edited page rather than to the
        # negociated translation; to prevent unnecessary fiddling with caller/inject,
        # we only do so when our beautify_urlpath would actually do what we want to
        }
        # avoid using our injected beautify_urlpath if run by cgi_editpage,
        # so that one is redirected to the just-edited page rather than to the
        # negociated translation; to prevent unnecessary fiddling with caller/inject,
        # we only do so when our beautify_urlpath would actually do what we want to

-       # avoid, i.e. when po_link_to = negotiated
+       # avoid, i.e. when po_link_to = negotiated.
+       # also avoid doing so when run by cgi_goto, so that the links on recentchanges
+       # page actually lead to the exact page they pretend to.

        if ($config{po_link_to} eq "negotiated") {
                my @caller = caller(1);
        if ($config{po_link_to} eq "negotiated") {
                my @caller = caller(1);

-               my $run_by_editpage = 0;
-               $run_by_editpage = 1 if (exists $caller[3] && defined $caller[3]
-                                        && $caller[3] eq "IkiWiki::cgi_editpage");
+               my $use_orig = 0;
+               $use_orig = 1 if (exists $caller[3] && defined $caller[3]
+                                && ($caller[3] eq "IkiWiki::cgi_editpage" ||
+                                    $caller[3] eq "IkiWiki::Plugin::goto::cgi_goto")
+                                );

                inject(name => "IkiWiki::beautify_urlpath", call => $origsubs{'beautify_urlpath'})
                inject(name => "IkiWiki::beautify_urlpath", call => $origsubs{'beautify_urlpath'})

-                       if $run_by_editpage;
+                       if $use_orig;

                my $res = $origsubs{'urlto'}->($to,$from,$absolute);
                inject(name => "IkiWiki::beautify_urlpath", call => \&mybeautify_urlpath)
                my $res = $origsubs{'urlto'}->($to,$from,$absolute);
                inject(name => "IkiWiki::beautify_urlpath", call => \&mybeautify_urlpath)

-                       if $run_by_editpage;
+                       if $use_orig;

                return $res;
        }
        else {
                return $res;
        }
        else {


@@ -535,13 +699,41 @@ sub myurlto ($$;$) {
        }
 }
 
        }
 }
 

-sub mynicepagetitle ($;$) {
-       my ($page, $unescaped) = (shift, shift);
+sub mycgiurl (@) {
+       my %params=@_;
+
+       # slave pages have no subpages
+       if (istranslation($params{'from'})) {
+               $params{'from'} = masterpage($params{'from'});
+       }
+       return $origsubs{'cgiurl'}->(%params);
+}
+
+sub myrootpage (@) {
+       my %params=@_;
+
+       my $rootpage;
+       if (exists $params{rootpage}) {
+               $rootpage=$origsubs{'bestlink'}->($params{page}, $params{rootpage});
+               if (!length $rootpage) {
+                       $rootpage=$params{rootpage};
+               }
+       }
+       else {
+               $rootpage=masterpage($params{page});
+       }
+       return $rootpage;
+}
+
+sub myisselflink ($$) {
+       my $page=shift;
+       my $link=shift;

 
 

-       my $res = $origsubs{'nicepagetitle'}->($page, $unescaped);
-       return $res unless istranslation($page);
-       return $res unless $config{po_translation_status_in_links};
-       return $res.' ('.percenttranslated($page).' %)';
+       return 1 if $origsubs{'isselflink'}->($page, $link);
+       if (istranslation($page)) {
+               return $origsubs{'isselflink'}->(masterpage($page), $link);
+       }
+       return;

 }
 
 # ,----
 }
 
 # ,----


@@ -555,8 +747,8 @@ sub mynicepagetitle ($;$) {
                my $page=shift;
                my $destpage=shift;
 
                my $page=shift;
                my $destpage=shift;
 

-               return ( exists $filtered{$page}{$destpage}
-                        && $filtered{$page}{$destpage} eq 1 );
+               return exists $filtered{$page}{$destpage}
+                        && $filtered{$page}{$destpage} eq 1;

        }
 
        sub setalreadyfiltered($$) {
        }
 
        sub setalreadyfiltered($$) {


@@ -596,8 +788,10 @@ sub istranslatablefile ($) {
        my $file=shift;
 
        return 0 unless defined $file;
        my $file=shift;
 
        return 0 unless defined $file;

-       return 0 if (defined pagetype($file) && pagetype($file) eq 'po');
+       my $type=pagetype($file);
+       return 0 if ! defined $type || $type eq 'po';

        return 0 if $file =~ /\.pot$/;
        return 0 if $file =~ /\.pot$/;

+       return 0 if ! defined $config{po_translatable_pages};

        return 1 if pagespec_match(pagename($file), $config{po_translatable_pages});
        return;
 }
        return 1 if pagespec_match(pagename($file), $config{po_translatable_pages});
        return;
 }


@@ -610,21 +804,31 @@ sub istranslatable ($) {
        return;
 }
 
        return;
 }
 

+sub istranslatedto ($$) {
+       my $page=shift;
+       my $destlang = shift;
+
+       $page=~s#^/##;
+       return 0 unless istranslatable($page);
+       exists $pagesources{otherlanguage_page($page, $destlang)};
+}
+

 sub _istranslation ($) {
        my $page=shift;
 
 sub _istranslation ($) {
        my $page=shift;
 

+       $page='' unless defined $page && length $page;

        my $hasleadingslash = ($page=~s#^/##);
        my $file=$pagesources{$page};
        my $hasleadingslash = ($page=~s#^/##);
        my $file=$pagesources{$page};

-       return 0 unless (defined $file
+       return 0 unless defined $file

                         && defined pagetype($file)
                         && defined pagetype($file)

-                        && pagetype($file) eq 'po');
+                        && pagetype($file) eq 'po';

        return 0 if $file =~ /\.pot$/;
 
        return 0 if $file =~ /\.pot$/;
 

-       my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
-       return 0 unless (defined $masterpage && defined $lang
+       my ($masterpage, $lang) = ($page =~ /(.*)[.]($language_code_pattern)$/);
+       return 0 unless defined $masterpage && defined $lang

                         && length $masterpage && length $lang
                         && defined $pagesources{$masterpage}
                         && length $masterpage && length $lang
                         && defined $pagesources{$masterpage}

-                        && defined $config{po_slave_languages}{$lang});
+                        && defined $slavelanguages{$lang};

 
        return (maybe_add_leading_slash($masterpage, $hasleadingslash), $lang)
                if istranslatable($masterpage);
 
        return (maybe_add_leading_slash($masterpage, $hasleadingslash), $lang)
                if istranslatable($masterpage);


@@ -638,7 +842,7 @@ sub istranslation ($) {
                $translations{$masterpage}{$lang}=$page unless exists $translations{$masterpage}{$lang};
                return (maybe_add_leading_slash($masterpage, $hasleadingslash), $lang);
        }
                $translations{$masterpage}{$lang}=$page unless exists $translations{$masterpage}{$lang};
                return (maybe_add_leading_slash($masterpage, $hasleadingslash), $lang);
        }

-       return;
+       return "";

 }
 
 sub masterpage ($) {
 }
 
 sub masterpage ($) {


@@ -656,34 +860,64 @@ sub lang ($) {
        if (1 < (my ($masterpage, $lang) = _istranslation($page))) {
                return $lang;
        }
        if (1 < (my ($masterpage, $lang) = _istranslation($page))) {
                return $lang;
        }

-       return $config{po_master_language}{code};
+       return $master_language_code;
+}
+
+sub htmllangcode ($) {
+       (my $lang = shift) =~ tr/_/-/;
+       return $lang;
+}
+
+sub htmllangdir ($) {
+       my $lang = shift;
+       if ($lang =~ /^(ar|fa|he)/) {
+               return 'rtl';
+       }
+       return 'ltr';

 }
 
 sub islanguagecode ($) {
        my $code=shift;
 
 }
 
 sub islanguagecode ($) {
        my $code=shift;
 

-       return ($code =~ /^[a-z]{2}$/);
+       return $code =~ /^$language_code_pattern$/;

 }
 
 }
 

-sub otherlanguage ($$) {
+sub otherlanguage_page ($$) {

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

-       return masterpage($page) if $code eq $config{po_master_language}{code};
+       return masterpage($page) if $code eq $master_language_code;

        return masterpage($page) . '.' . $code;
 }
 
        return masterpage($page) . '.' . $code;
 }
 

-sub otherlanguages ($) {
+# Returns the list of other languages codes: the master language comes first,
+# then the codes are ordered the same way as in po_slave_languages, if it is
+# an array, or in the language name lexical order, if it is a hash.
+sub otherlanguages_codes ($) {

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

-       my %ret;
-       return \%ret unless (istranslation($page) || istranslatable($page));
+       my @ret;
+       return \@ret unless istranslation($page) || istranslatable($page);

        my $curlang=lang($page);
        foreach my $lang
        my $curlang=lang($page);
        foreach my $lang

-               ($config{po_master_language}{code}, keys %{$config{po_slave_languages}}) {
+               ($master_language_code, @slavelanguages) {

                next if $lang eq $curlang;
                next if $lang eq $curlang;

-               $ret{$lang}=otherlanguage($page, $lang);
+               if ($lang eq $master_language_code ||
+                   istranslatedto(masterpage($page), $lang)) {
+                       push @ret, $lang;
+               }

        }
        }

+       return \@ret;
+}
+
+sub otherlanguages_pages ($) {
+       my $page=shift;
+
+       my %ret;
+       map {
+               $ret{$_} = otherlanguage_page($page, $_)
+       } @{otherlanguages_codes($page)};
+

        return \%ret;
 }
 
        return \%ret;
 }
 


@@ -707,24 +941,25 @@ sub pofile ($$) {
 sub pofiles ($) {
        my $masterfile=shift;
 
 sub pofiles ($) {
        my $masterfile=shift;
 

-       return map pofile($masterfile, $_), (keys %{$config{po_slave_languages}});
+       return map pofile($masterfile, $_), @slavelanguages;

 }
 
 sub refreshpot ($) {
        my $masterfile=shift;
 
        my $potfile=potfile($masterfile);
 }
 
 sub refreshpot ($) {
        my $masterfile=shift;
 
        my $potfile=potfile($masterfile);

-       my %options = ("markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0);
-       my $doc=Locale::Po4a::Chooser::new('text',%options);
+       my $doc=Locale::Po4a::Chooser::new(po4a_type($masterfile),
+                                          po4a_options($masterfile));

        $doc->{TT}{utf_mode} = 1;
        $doc->{TT}{utf_mode} = 1;

-       $doc->{TT}{file_in_charset} = 'utf-8';
-       $doc->{TT}{file_out_charset} = 'utf-8';
+       $doc->{TT}{file_in_charset} = 'UTF-8';
+       $doc->{TT}{file_out_charset} = 'UTF-8';

        $doc->read($masterfile);
        $doc->read($masterfile);

-       # let's cheat a bit to force porefs option to be passed to Locale::Po4a::Po;
-       # this is undocument use of internal Locale::Po4a::TransTractor's data,
-       # compulsory since this module prevents us from using the porefs option.
+       # let's cheat a bit to force porefs option to be passed to
+       # Locale::Po4a::Po; this is undocument use of internal
+       # Locale::Po4a::TransTractor's data, compulsory since this module
+       # prevents us from using the porefs option.

        $doc->{TT}{po_out}=Locale::Po4a::Po->new({ 'porefs' => 'none' });
        $doc->{TT}{po_out}=Locale::Po4a::Po->new({ 'porefs' => 'none' });

-       $doc->{TT}{po_out}->set_charset('utf-8');
+       $doc->{TT}{po_out}->set_charset('UTF-8');

        # do the actual work
        $doc->parse;
        IkiWiki::prep_writefile(basename($potfile),dirname($potfile));
        # do the actual work
        $doc->parse;
        IkiWiki::prep_writefile(basename($potfile),dirname($potfile));


@@ -736,17 +971,37 @@ sub refreshpofiles ($@) {
        my @pofiles=@_;
 
        my $potfile=potfile($masterfile);
        my @pofiles=@_;
 
        my $potfile=potfile($masterfile);

-       error("[po/refreshpofiles] POT file ($potfile) does not exist") unless (-e $potfile);
+       if (! -e $potfile) {
+               error("po(refreshpofiles) ".sprintf(gettext("POT file (%s) does not exist"), $potfile));
+       }

 
        foreach my $pofile (@pofiles) {
                IkiWiki::prep_writefile(basename($pofile),dirname($pofile));
 
        foreach my $pofile (@pofiles) {
                IkiWiki::prep_writefile(basename($pofile),dirname($pofile));

+
+               if (! -e $pofile) {
+                       # If the po file exists in an underlay, copy it
+                       # from there.
+                       my ($pobase)=$pofile=~/^\Q$config{srcdir}\E\/?(.*)$/;
+                       foreach my $dir (@{$config{underlaydirs}}) {
+                               if (-e "$dir/$pobase") {
+                                       File::Copy::syscopy("$dir/$pobase",$pofile)
+                                               or error("po(refreshpofiles) ".
+                                                        sprintf(gettext("failed to copy underlay PO file to %s"),
+                                                                $pofile));
+                               }
+                       }
+               }
+

                if (-e $pofile) {
                if (-e $pofile) {

-                       system("msgmerge", "-U", "--backup=none", $pofile, $potfile) == 0
-                               or error("[po/refreshpofiles:$pofile] failed to update");
+                       if (! (system("msgmerge", "--previous", "-q", "-U", "--backup=none", $pofile, $potfile) == 0)) {
+                               print STDERR ("po(refreshpofiles) ". sprintf(gettext("failed to update %s"), $pofile));
+                       }

                }
                else {
                        File::Copy::syscopy($potfile,$pofile)
                }
                else {
                        File::Copy::syscopy($potfile,$pofile)

-                               or error("[po/refreshpofiles:$pofile] failed to copy the POT file");
+                               or error("po(refreshpofiles) ".
+                                        sprintf(gettext("failed to copy the POT file to %s"),
+                                                $pofile));

                }
        }
 }
                }
        }
 }


@@ -784,27 +1039,27 @@ sub percenttranslated ($) {
        return gettext("N/A") unless istranslation($page);
        my $file=srcfile($pagesources{$page});
        my $masterfile = srcfile($pagesources{masterpage($page)});
        return gettext("N/A") unless istranslation($page);
        my $file=srcfile($pagesources{$page});
        my $masterfile = srcfile($pagesources{masterpage($page)});

-       my %options = (
-               "markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0,
-       );
-       my $doc=Locale::Po4a::Chooser::new('text',%options);
+       my $doc=Locale::Po4a::Chooser::new(po4a_type($masterfile),
+                                          po4a_options($masterfile));

        $doc->process(
                'po_in_name'    => [ $file ],
                'file_in_name'  => [ $masterfile ],
        $doc->process(
                'po_in_name'    => [ $file ],
                'file_in_name'  => [ $masterfile ],

-               'file_in_charset'  => 'utf-8',
-               'file_out_charset' => 'utf-8',
-       ) or error("[po/percenttranslated:$page]: failed to translate");
+               'file_in_charset'  => 'UTF-8',
+               'file_out_charset' => 'UTF-8',
+       ) or error("po(percenttranslated) ".
+                  sprintf(gettext("failed to translate %s"), $page));

        my ($percent,$hit,$queries) = $doc->stats();
        my ($percent,$hit,$queries) = $doc->stats();

+       $percent =~ s/\.[0-9]+$//;

        return $percent;
 }
 
 sub languagename ($) {
        my $code=shift;
 
        return $percent;
 }
 
 sub languagename ($) {
        my $code=shift;
 

-       return $config{po_master_language}{name}
-               if $code eq $config{po_master_language}{code};
-       return $config{po_slave_languages}{$code}
-               if defined $config{po_slave_languages}{$code};
+       return $master_language_name
+               if $code eq $master_language_code;
+       return $slavelanguages{$code}
+               if defined $slavelanguages{$code};

        return;
 }
 
        return;
 }
 


@@ -812,30 +1067,29 @@ sub otherlanguagesloop ($) {
        my $page=shift;
 
        my @ret;
        my $page=shift;
 
        my @ret;

-       my %otherpages=%{otherlanguages($page)};
-       while (my ($lang, $otherpage) = each %otherpages) {
-               if (istranslation($page) && masterpage($page) eq $otherpage) {
-                       push @ret, {
-                               url => urlto_with_orig_beautiful_urlpath($otherpage, $page),
-                               code => $lang,
-                               language => languagename($lang),
-                               master => 1,
-                       };
-               }
-               else {
-                       push @ret, {
-                               url => urlto_with_orig_beautiful_urlpath($otherpage, $page),
-                               code => $lang,
-                               language => languagename($lang),
-                               percent => percenttranslated($otherpage),
-                       }
+       if (istranslation($page)) {
+               push @ret, {
+                       url => urlto_with_orig_beautiful_urlpath(masterpage($page), $page),
+                       code => $master_language_code,
+                       html_code => htmllangcode($master_language_code),
+                       html_dir => htmllangdir($master_language_code),
+                       language => $master_language_name,
+                       master => 1,
+               };
+       }
+       foreach my $lang (@{otherlanguages_codes($page)}) {
+               next if $lang eq $master_language_code;
+               my $otherpage = otherlanguage_page($page, $lang);
+               push @ret, {
+                       url => urlto_with_orig_beautiful_urlpath($otherpage, $page),
+                       code => $lang,
+                       html_code => htmllangcode($lang),
+                       html_dir => htmllangdir($lang),
+                       language => languagename($lang),
+                       percent => percenttranslated($otherpage),

                }
        }
                }
        }

-       return sort {
-                       return -1 if $a->{code} eq $config{po_master_language}{code};
-                       return 1 if $b->{code} eq $config{po_master_language}{code};
-                       return $a->{language} cmp $b->{language};
-               } @ret;
+       return @ret;

 }
 
 sub homepageurl (;$) {
 }
 
 sub homepageurl (;$) {


@@ -844,6 +1098,14 @@ sub homepageurl (;$) {
        return urlto('', $page);
 }
 
        return urlto('', $page);
 }
 

+sub ishomepage ($) {
+       my $page = shift;
+
+       return 1 if $page eq 'index';
+       map { return 1 if $page eq 'index.'.$_ } @slavelanguages;
+       return undef;
+}
+

 sub deletetranslations ($) {
        my $deletedmasterfile=shift;
 
 sub deletetranslations ($) {
        my $deletedmasterfile=shift;
 


@@ -855,30 +1117,31 @@ sub deletetranslations ($) {
                if (-e $absfile && ! -l $absfile && ! -d $absfile) {
                        push @todelete, $file;
                }
                if (-e $absfile && ! -l $absfile && ! -d $absfile) {
                        push @todelete, $file;
                }

-       } keys %{$config{po_slave_languages}};
+       } @slavelanguages;

 
        map {
                if ($config{rcs}) {
                        IkiWiki::rcs_remove($_);
                }
                else {
 
        map {
                if ($config{rcs}) {
                        IkiWiki::rcs_remove($_);
                }
                else {

-                       IkiWiki::prune("$config{srcdir}/$_");
+                       IkiWiki::prune("$config{srcdir}/$_", $config{srcdir});

                }
        } @todelete;
 
                }
        } @todelete;
 

-       if (scalar @todelete) {
+       if (@todelete) {

                commit_and_refresh(
                commit_and_refresh(

-                       gettext("removed obsolete PO files"),
-                       "IkiWiki::Plugin::po::deletetranslations");
+                       gettext("removed obsolete PO files"));

        }
 }
 
        }
 }
 

-sub commit_and_refresh ($$) {
-       my ($msg, $author) = (shift, shift);
+sub commit_and_refresh ($) {
+       my $msg = shift;

 
        if ($config{rcs}) {
                IkiWiki::disable_commit_hook();
 
        if ($config{rcs}) {
                IkiWiki::disable_commit_hook();

-               IkiWiki::rcs_commit_staged($msg, $author, "127.0.0.1");
+               IkiWiki::rcs_commit_staged(
+                       message => $msg,
+               );

                IkiWiki::enable_commit_hook();
                IkiWiki::rcs_update();
        }
                IkiWiki::enable_commit_hook();
                IkiWiki::rcs_update();
        }


@@ -896,11 +1159,8 @@ sub commit_and_refresh ($$) {
        IkiWiki::saveindex();
 }
 
        IkiWiki::saveindex();
 }
 

-# on success, returns the filtered content.
-# on error, if $nonfatal, warn and return undef; else, error out.
-sub po_to_markup ($$;$) {
+sub po_to_markup ($$) {

        my ($page, $content) = (shift, shift);
        my ($page, $content) = (shift, shift);

-       my $nonfatal = shift;

 
        $content = '' unless defined $content;
        $content = decode_utf8(encode_utf8($content));
 
        $content = '' unless defined $content;
        $content = decode_utf8(encode_utf8($content));


@@ -921,32 +1181,27 @@ sub po_to_markup ($$;$) {
                                     DIR => File::Spec->tmpdir,
                                     UNLINK => 1)->filename;
 
                                     DIR => File::Spec->tmpdir,
                                     UNLINK => 1)->filename;
 

-       sub failure ($) {
-               my $msg = '[po/po_to_markup:'.$page.'] ' . shift;
-               if ($nonfatal) {
-                       warn $msg;
-                       return undef;
-               }
+       my $fail = sub ($) {
+               my $msg = "po(po_to_markup) - $page : " . shift;

                error($msg, sub { unlink $infile, $outfile});
                error($msg, sub { unlink $infile, $outfile});

-       }
+       };

 
        writefile(basename($infile), File::Spec->tmpdir, $content)
 
        writefile(basename($infile), File::Spec->tmpdir, $content)

-               or return failure("failed to write $infile");
+               or return $fail->(sprintf(gettext("failed to write %s"), $infile));

 
        my $masterfile = srcfile($pagesources{masterpage($page)});
 
        my $masterfile = srcfile($pagesources{masterpage($page)});

-       my %options = (
-               "markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0,
-       );
-       my $doc=Locale::Po4a::Chooser::new('text',%options);
+       my $doc=Locale::Po4a::Chooser::new(po4a_type($masterfile),
+                                          po4a_options($masterfile));

        $doc->process(
                'po_in_name'    => [ $infile ],
                'file_in_name'  => [ $masterfile ],
        $doc->process(
                'po_in_name'    => [ $infile ],
                'file_in_name'  => [ $masterfile ],

-               'file_in_charset'  => 'utf-8',
-               'file_out_charset' => 'utf-8',
-       ) or return failure("failed to translate");
-       $doc->write($outfile) or return failure("could not write $outfile");
+               'file_in_charset'  => 'UTF-8',
+               'file_out_charset' => 'UTF-8',
+       ) or return $fail->(gettext("failed to translate"));
+       $doc->write($outfile)
+               or return $fail->(sprintf(gettext("failed to write %s"), $outfile));

 
 

-       $content = readfile($outfile) or return failure("could not read $outfile");
+       $content = readfile($outfile);

 
        # Unlinking should happen automatically, thanks to File::Temp,
        # but it does not work here, probably because of the way writefile()
 
        # Unlinking should happen automatically, thanks to File::Temp,
        # but it does not work here, probably because of the way writefile()


@@ -976,14 +1231,14 @@ sub isvalidpo ($) {
                                    DIR => File::Spec->tmpdir,
                                    UNLINK => 1)->filename;
 
                                    DIR => File::Spec->tmpdir,
                                    UNLINK => 1)->filename;
 

-       sub failure ($) {
+       my $fail = sub ($) {

                my $msg = '[po/isvalidpo] ' . shift;
                unlink $infile;
                return IkiWiki::FailReason->new("$msg");
                my $msg = '[po/isvalidpo] ' . shift;
                unlink $infile;
                return IkiWiki::FailReason->new("$msg");

-       }
+       };

 
        writefile(basename($infile), File::Spec->tmpdir, $content)
 
        writefile(basename($infile), File::Spec->tmpdir, $content)

-               or return failure("failed to write $infile");
+               or return $fail->(sprintf(gettext("failed to write %s"), $infile));

 
        my $res = (system("msgfmt", "--check", $infile, "-o", "/dev/null") == 0);
 
 
        my $res = (system("msgfmt", "--check", $infile, "-o", "/dev/null") == 0);
 


@@ -993,19 +1248,70 @@ sub isvalidpo ($) {
        unlink $infile;
 
        if ($res) {
        unlink $infile;
 
        if ($res) {

-           return IkiWiki::SuccessReason->new("valid gettext data");
+               return IkiWiki::SuccessReason->new("valid gettext data");
+       }
+       return IkiWiki::FailReason->new(gettext("invalid gettext data, go back ".
+                                       "to previous page to continue edit"));
+}
+
+sub po4a_type ($) {
+       my $file = shift;
+
+       my $pagetype = pagetype($file);
+       if ($pagetype eq 'html') {
+               return 'xhtml';

        }
        }

-       return IkiWiki::FailReason->new("invalid gettext data");
+       return 'text';
+}
+
+sub po4a_options($) {
+       my $file = shift;
+
+       my %options;
+       my $pagetype = pagetype($file);
+
+       if ($pagetype eq 'html') {
+               # how to disable options is not consistent across po4a modules
+               $options{includessi} = '';
+               $options{includeexternal} = 0;
+               $options{ontagerror} = 'warn';
+       }
+       elsif ($pagetype eq 'mdwn') {
+               $options{markdown} = 1;
+       }
+       else {
+               $options{markdown} = 0;
+       }
+
+       return %options;
+}
+
+sub splitlangpair ($) {
+       my $pair=shift;
+
+       my ($code, $name) = ( $pair =~ /^($language_code_pattern)\|(.+)$/ );
+       if (! defined $code || ! defined $name ||
+           ! length $code || ! length $name) {
+               # not a fatal error to avoid breaking if used with web setup
+               warn sprintf(gettext("%s has invalid syntax: must use CODE|NAME"),
+                       $pair);
+       }
+
+       return $code, $name;
+}
+
+sub joinlangpair ($$) {
+       my $code=shift;
+       my $name=shift;
+
+       return "$code|$name";

 }
 
 # ,----
 }
 
 # ,----

-# | PageSpec's
+# | PageSpecs

 # `----
 
 package IkiWiki::PageSpec;
 # `----
 
 package IkiWiki::PageSpec;

-use warnings;
-use strict;
-use IkiWiki 2.00;

 
 sub match_istranslation ($;@) {
        my $page=shift;
 
 sub match_istranslation ($;@) {
        my $page=shift;


@@ -1035,7 +1341,7 @@ sub match_lang ($$;@) {
 
        my $regexp=IkiWiki::glob2re($wanted);
        my $lang=IkiWiki::Plugin::po::lang($page);
 
        my $regexp=IkiWiki::glob2re($wanted);
        my $lang=IkiWiki::Plugin::po::lang($page);

-       if ($lang!~/^$regexp$/i) {
+       if ($lang !~ $regexp) {

                return IkiWiki::FailReason->new("file language is $lang, not $wanted");
        }
        else {
                return IkiWiki::FailReason->new("file language is $lang, not $wanted");
        }
        else {


@@ -1061,4 +1367,32 @@ sub match_currentlang ($$;@) {
        }
 }
 
        }
 }
 

+sub match_needstranslation ($$;@) {
+       my $page=shift;
+       my $wanted=shift;
+
+       if (defined $wanted && $wanted ne "") {
+               if ($wanted !~ /^\d+$/) {
+                       return IkiWiki::FailReason->new("parameter is not an integer");
+               }
+               elsif ($wanted > 100) {
+                       return IkiWiki::FailReason->new("parameter is greater than 100");
+               }
+       }
+       else {
+               $wanted=100;
+       }
+
+       my $percenttranslated=IkiWiki::Plugin::po::percenttranslated($page);
+       if ($percenttranslated eq 'N/A') {
+               return IkiWiki::FailReason->new("file is not a translatable page");
+       }
+       elsif ($percenttranslated < $wanted) {
+               return IkiWiki::SuccessReason->new("file has $percenttranslated translated");
+       }
+       else {
+               return IkiWiki::FailReason->new("file is translated enough");
+       }
+}
+

 1
 1