po plugin: implement linking specification in one of the main cases

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

diff --git a/IkiWiki/Plugin/po.pm b/IkiWiki/Plugin/po.pm
index 58e184b9b9e4256608a9ed747ee8799f57519306..63be0e38979d23a972843ba283f5d55ab76af201 100644 (file)
--- a/IkiWiki/Plugin/po.pm
+++ b/IkiWiki/Plugin/po.pm
@@ -1,16 +1,23 @@
 #!/usr/bin/perl
 # .po as a wiki page type
 #!/usr/bin/perl
 # .po as a wiki page type

+# inspired by the GPL'd po4a-translate,
+# which is Copyright 2002, 2003, 2004 by Martin Quinson (mquinson#debian.org)

 package IkiWiki::Plugin::po;
 
 use warnings;
 use strict;
 use IkiWiki 2.00;
 use Encode;
 package IkiWiki::Plugin::po;
 
 use warnings;
 use strict;
 use IkiWiki 2.00;
 use Encode;

+use Locale::Po4a::Chooser;
+use File::Temp;

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

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

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

+       hook(type => "preprocess", id => "translatable", call => \&preprocess_translatable);

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


@@ -20,52 +27,171 @@ sub getsetup () { #{{{
                        safe => 0,
                        rebuild => 1, # format plugin
                },
                        safe => 0,
                        rebuild => 1, # format plugin
                },

-               po_supported_languages => {
+               po_master_language => {

                        type => "string",
                        type => "string",

-                       example => { 'fr' => { 'name' => 'Français' },
+                       example => {
+                               'code' => 'en',
+                               'name' => 'English'
+                       },
+                       description => "master language (non-PO files)",
+                       safe => 1,
+                       rebuild => 1,
+               },
+               po_slave_languages => {
+                       type => "string",
+                       example => {'fr' => { 'name' => 'Français' },

                                    'es' => { 'name' => 'Castellano' },
                                    'de' => { 'name' => 'Deutsch' },
                        },
                                    'es' => { 'name' => 'Castellano' },
                                    'de' => { 'name' => 'Deutsch' },
                        },

+                       description => "slave languages (PO files)",
+                       safe => 1,
+                       rebuild => 1,
+               },
+               po_link_to_current_language => {
+                       type => "boolean",
+                       example => 1,
+                       description => "internal links point to pages in the current language (useful if Content Negotiation is not supported)",

                        safe => 1,
                        rebuild => 1,
                },
 } #}}}
 
                        safe => 1,
                        rebuild => 1,
                },
 } #}}}
 

+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_link_to_current_language} ||
+           ! defined $config{po_link_to_current_language}) {
+           $config{po_link_to_current_language}=0;
+       }
+} #}}}
+

 sub targetpage (@) { #{{{
        my %params = @_;
         my $page=$params{page};
         my $ext=$params{ext};
 
 sub targetpage (@) { #{{{
        my %params = @_;
         my $page=$params{page};
         my $ext=$params{ext};
 

-       my ($origpage, $lang) = ($page =~ /(.*)[.]([a-z]{2}$)/);
-
-       if (defined $origpage && defined $lang
-           && (length($origpage) > 0) && (length($lang) > 0)
-           && defined $config{po_supported_languages}{$lang}) {
+       if (pagespec_match($page,"istranslation()")) {
+               my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);

                if (! $config{usedirs} || $page eq 'index') {
                if (! $config{usedirs} || $page eq 'index') {

-                       return $origpage.".".$ext.".".$lang;
+                       return $masterpage . "." . $lang . "." . $ext;

                }
                else {
                }
                else {

-                       return $origpage."/index.".$ext.".".$lang;
+                       return $masterpage . "/index." . $lang . "." . $ext;
+               }
+       }
+       else {
+               if (! $config{usedirs} || $page eq 'index') {
+                       return $page . "." . $config{po_master_language}{code} . "." . $ext;

                }
                }

+               else {
+                       return $page . "/index." . $config{po_master_language}{code} . "." . $ext;
+               }
+       }
+} #}}}
+
+sub tweakurlpath ($) { #{{{
+       my %params = @_;
+       my $url=$params{url};
+       if (! $config{po_link_to_current_language} && $config{usedirs}) {
+               $url =~ s!/index.$config{po_master_language}{code}.$config{htmlext}$!/!;

        }
        }

+       return $url;

 } #}}}
 
 } #}}}
 

-# We use filter to convert PO to HTML, since the other plugins might do harm to it.
+# We use filter to convert PO to the master page's type,
+# since other plugins should not work on PO files

 sub filter (@) { #{{{
        my %params = @_;
 sub filter (@) { #{{{
        my %params = @_;

+       my $page = $params{page};

        my $content = decode_utf8(encode_utf8($params{content}));
 
        my $content = decode_utf8(encode_utf8($params{content}));
 

-       if (defined $pagesources{$params{page}} && $pagesources{$params{page}} =~ /\.po$/) {
-               $content = "<pre>" . $content . "</pre>";
+       # decide if this is a PO file that should be converted into a translated document,
+       # and perform various sanity checks
+       if (! pagespec_match($page, "istranslation()")) {
+               return $content;

        }
 
        }
 

+       my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
+       my $file=srcfile(exists $params{file} ? $params{file} : $IkiWiki::pagesources{$page});
+       my $masterfile = srcfile($pagesources{$masterpage});
+       my (@pos,@masters);
+       push @pos,$file;
+       push @masters,$masterfile;
+       my %options = (
+                       "markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0,
+                       );
+       my $doc=Locale::Po4a::Chooser::new('text',%options);
+       $doc->process(
+               'po_in_name'    => \@pos,
+               'file_in_name'  => \@masters,
+               'file_in_charset'  => 'utf-8',
+               'file_out_charset' => 'utf-8',
+       ) or error("[po/filter:$file]: failed to translate");
+       my ($percent,$hit,$queries) = $doc->stats();
+       my $tmpfh = File::Temp->new(TEMPLATE => "/tmp/ikiwiki-po-filter-out.XXXXXXXXXX");
+       my $tmpout = $tmpfh->filename;
+       $doc->write($tmpout) or error("[po/filter:$file] could not write $tmpout");
+       $content = readfile($tmpout) or error("[po/filter:$file] could not read $tmpout");

        return $content;
 } #}}}
 
        return $content;
 } #}}}
 

-# We need this to register the .po file extension
+sub preprocess_translatable (@) { #{{{
+       my %params = @_;
+       my $match = exists $params{match} ? $params{match} : $params{page};
+
+       $pagestate{$params{page}}{po_translatable}{$match}=1;
+
+       return "" if ($params{silent} && IkiWiki::yesno($params{silent}));
+       return sprintf(gettext("pages %s set as translatable"), $params{match});
+
+} #}}}
+

 sub htmlize (@) { #{{{
        my %params=@_;
 sub htmlize (@) { #{{{
        my %params=@_;

-       return $params{content};
+       my $page = $params{page};
+       my $content = $params{content};
+       my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
+       my $masterfile = srcfile($pagesources{$masterpage});
+
+       # force content to be htmlize'd as if it was the same type as the master page
+       return IkiWiki::htmlize($page, $page, pagetype($masterfile), $content);
+} #}}}
+
+package IkiWiki::PageSpec;
+
+sub match_istranslation ($;@) { #{{{
+       my $page=shift;
+       my $wanted=shift;
+
+       my %params=@_;
+       my $file=exists $params{file} ? $params{file} : $IkiWiki::pagesources{$page};
+       if (! defined $file) {
+               return IkiWiki::FailReason->new("no file specified");
+       }
+
+       if (! IkiWiki::pagetype($page) eq 'po') {
+               return IkiWiki::FailReason->new("is not a PO file");
+       }
+
+       my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
+       if (! defined $masterpage || ! defined $lang
+           || ! (length($masterpage) > 0) || ! (length($lang) > 0)) {
+               return IkiWiki::FailReason->new("is not named like a translation file");
+       }
+
+       if (! defined $IkiWiki::pagesources{$masterpage}) {
+               return IkiWiki::FailReason->new("the master page does not exist");
+       }
+
+       if (! defined $IkiWiki::config{po_slave_languages}{$lang}) {
+               return IkiWiki::FailReason->new("language $lang is not supported");
+       }
+
+       return IkiWiki::SuccessReason->new("page $page is a translation");
+

 } #}}}
 
 1
 } #}}}
 
 1